@import"https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700&family=Space+Grotesk:wght@500;700&display=swap";@import"https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Outfit:wght@300;400;500;600;700&display=swap";.mainpage-container{width:100%;min-height:100vh;background:linear-gradient(180deg,#f8f9ff,#fff,#f8f9ff);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;overflow-x:hidden}.mainpage-hero{position:relative;display:flex;align-items:center;justify-content:space-between;max-width:1400px;margin:0 auto;padding:80px 60px;min-height:90vh;gap:80px}.hero-content-wrapper{flex:1;max-width:650px;z-index:10}.hero-badge{display:inline-flex;align-items:center;gap:10px;padding:10px 24px;background:linear-gradient(135deg,#667eea1a,#764ba21a);border:2px solid rgba(102,126,234,.3);border-radius:50px;font-size:14px;font-weight:700;color:#667eea;margin-bottom:28px;animation:fadeInUp .6s ease-out}.badge-icon{font-size:18px}.badge-text{letter-spacing:.5px}.hero-title{font-size:64px;font-weight:900;line-height:1.15;color:#1a202c;margin-bottom:28px;animation:fadeInUp .6s ease-out .1s backwards}.hero-gradient-text{background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;display:block}.hero-description{font-size:20px;line-height:1.7;color:#4a5568;margin-bottom:40px;animation:fadeInUp .6s ease-out .2s backwards}.hero-actions{display:flex;gap:20px;margin-bottom:60px;animation:fadeInUp .6s ease-out .3s backwards}.btn-hero-primary,.btn-hero-secondary{display:inline-flex;align-items:center;gap:10px;padding:18px 36px;font-size:17px;font-weight:700;border-radius:14px;border:none;cursor:pointer;transition:all .3s ease;outline:none}.btn-hero-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;box-shadow:0 12px 30px #667eea59}.btn-hero-primary:hover{transform:translateY(-3px);box-shadow:0 18px 40px #667eea73}.btn-hero-secondary{background:#fff;color:#667eea;border:2px solid #667eea;box-shadow:0 4px 15px #00000014}.btn-hero-secondary:hover{background:#667eea;color:#fff;transform:translateY(-3px);box-shadow:0 12px 25px #667eea40}.btn-arrow,.btn-icon{font-size:20px;transition:transform .3s ease}.btn-hero-primary:hover .btn-arrow,.btn-hero-secondary:hover .btn-arrow{transform:translate(5px)}.hero-stats{display:flex;align-items:center;gap:40px;animation:fadeInUp .6s ease-out .4s backwards}.stat-box{text-align:center}.stat-number{font-size:36px;font-weight:800;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:6px}.stat-label{font-size:14px;color:#718096;font-weight:600}.stat-divider{width:2px;height:50px;background:linear-gradient(180deg,#667eea4d,#764ba24d)}.hero-illustration{position:relative;flex:1;height:550px;animation:fadeIn .8s ease-out .3s backwards}.floating-element{position:absolute;background:#fff;padding:24px 32px;border-radius:20px;box-shadow:0 25px 70px #0000001f;display:flex;align-items:center;gap:16px;animation:float 3.5s ease-in-out infinite;border:1px solid rgba(102,126,234,.1)}.element-1{top:80px;left:40px;animation-delay:0s}.element-2{top:220px;right:60px;animation-delay:1.2s}.element-3{bottom:120px;left:80px;animation-delay:2.4s}.element-icon{font-size:40px}.element-text{font-size:17px;font-weight:700;color:#2d3748}.mainpage-features{max-width:1400px;margin:0 auto;padding:100px 60px;background:#fff}.section-header-center{text-align:center;margin-bottom:70px}.section-title{font-size:48px;font-weight:800;color:#1a202c;margin-bottom:18px}.section-subtitle{font-size:19px;color:#718096;max-width:700px;margin:0 auto;line-height:1.6}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:40px}.feature-card{background:#fff;padding:45px 35px;border-radius:24px;box-shadow:0 6px 25px #0000000f;transition:all .4s cubic-bezier(.175,.885,.32,1.275);border:2px solid #f7fafc}.feature-card:hover{transform:translateY(-10px);box-shadow:0 25px 50px #667eea26;border-color:#e9d5ff}.feature-icon-box{font-size:56px;margin-bottom:24px}.feature-title{font-size:24px;font-weight:800;color:#2d3748;margin-bottom:14px}.feature-description{font-size:16px;line-height:1.7;color:#718096}.mainpage-topics{max-width:1400px;margin:0 auto;padding:100px 60px;background:linear-gradient(180deg,#fff,#f8f9ff)}.topics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:35px}.topic-card-main{background:#fff;border-radius:24px;overflow:hidden;cursor:pointer;transition:all .4s cubic-bezier(.175,.885,.32,1.275);box-shadow:0 6px 25px #00000014;border:2px solid}.topic-card-main:hover{transform:translateY(-10px);box-shadow:0 30px 60px #0000002e}.topic-gradient-header{height:140px;display:flex;align-items:center;justify-content:center}.topic-emoji-large{font-size:64px;filter:drop-shadow(0 4px 10px rgba(0,0,0,.15))}.topic-content-main{padding:35px 30px}.topic-title-main{font-size:26px;font-weight:800;color:#2d3748;margin-bottom:10px}.topic-description-main{font-size:15px;color:#718096;margin-bottom:28px;line-height:1.6}.topic-btn-start{display:inline-flex;align-items:center;gap:10px;padding:14px 28px;background:#f7fafc;border:2px solid #e2e8f0;border-radius:12px;font-size:16px;font-weight:700;color:#4a5568;cursor:pointer;transition:all .3s ease}.topic-card-main:hover .topic-btn-start{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-color:transparent;transform:translate(5px)}.topic-arrow{transition:transform .3s ease;font-size:18px}.topic-card-main:hover .topic-arrow{transform:translate(6px)}.mainpage-cta{max-width:1400px;margin:0 auto;padding:50px 60px 100px}.cta-card-main{position:relative;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:32px;padding:90px 70px;display:flex;align-items:center;justify-content:space-between;overflow:hidden;box-shadow:0 35px 70px #667eea59}.cta-content-main{flex:1;max-width:650px;position:relative;z-index:2}.cta-icon-large{font-size:64px;margin-bottom:24px}.cta-title-main{font-size:44px;font-weight:800;color:#fff;margin-bottom:20px;line-height:1.3}.cta-description-main{font-size:19px;line-height:1.7;color:#fffffff2;margin-bottom:38px}.cta-button-main{display:inline-flex;align-items:center;gap:12px;padding:20px 42px;background:#fff;color:#667eea;border:none;border-radius:14px;font-size:18px;font-weight:800;cursor:pointer;transition:all .3s ease;box-shadow:0 12px 35px #0000002e}.cta-button-main:hover{transform:translateY(-4px);box-shadow:0 18px 45px #00000040}.cta-btn-icon{font-size:24px;font-weight:800}.cta-decoration{position:relative;width:350px;height:350px}.cta-circle{position:absolute;border-radius:50%;background:#ffffff1f;animation:pulse-cta 4.5s ease-in-out infinite}.circle-1{width:220px;height:220px;top:60px;right:60px;animation-delay:0s}.circle-2{width:170px;height:170px;bottom:110px;right:170px;animation-delay:1.5s}.circle-3{width:120px;height:120px;top:170px;right:220px;animation-delay:3s}.mainpage-how-it-works{max-width:1400px;margin:0 auto;padding:100px 60px;background:#fff}.steps-container-main{display:flex;align-items:center;justify-content:center;gap:50px;max-width:1300px;margin:0 auto}.step-card-main{position:relative;flex:1;background:#fff;padding:45px 35px;border-radius:24px;text-align:center;box-shadow:0 6px 25px #0000000f;transition:all .4s cubic-bezier(.175,.885,.32,1.275);border:2px solid #f7fafc}.step-card-main:hover{transform:translateY(-10px);box-shadow:0 25px 50px #667eea26;border-color:#e9d5ff}.step-number-badge{position:absolute;top:-22px;left:50%;transform:translate(-50%);width:45px;height:45px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;box-shadow:0 6px 20px #667eea59}.step-icon-main{font-size:64px;margin-bottom:24px}.step-title-main{font-size:24px;font-weight:800;color:#2d3748;margin-bottom:14px}.step-description-main{font-size:16px;line-height:1.7;color:#718096}.step-connector-main{width:70px;height:3px;background:linear-gradient(90deg,#667eea,#764ba2);margin:0 -30px;flex-shrink:0}.mainpage-footer{background:#1a202c;color:#fff;padding:70px 60px 35px}.footer-content-main{max-width:1400px;margin:0 auto 45px;display:grid;grid-template-columns:2fr 1fr 1fr;gap:70px}.footer-logo-main{font-size:26px;font-weight:800;margin-bottom:18px}.footer-description-main{font-size:16px;line-height:1.7;color:#a0aec0;max-width:380px}.footer-heading-main{font-size:17px;font-weight:800;margin-bottom:22px;color:#fff}.footer-links-main{list-style:none}.footer-links-main li{margin-bottom:14px}.footer-links-main a{color:#a0aec0;text-decoration:none;font-size:15px;transition:color .3s ease;font-weight:500}.footer-links-main a:hover{color:#667eea}.footer-bottom-main{max-width:1400px;margin:0 auto;padding-top:35px;border-top:1px solid #2d3748;text-align:center;color:#a0aec0;font-size:15px}@keyframes fadeInUp{0%{opacity:0;transform:translateY(35px)}to{opacity:1;transform:translateY(0)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-25px)}}@keyframes pulse-cta{0%,to{transform:scale(1);opacity:.35}50%{transform:scale(1.15);opacity:.55}}@media(max-width:1200px){.mainpage-hero{padding:70px 40px}.hero-title{font-size:56px}.mainpage-features,.mainpage-topics,.mainpage-how-it-works{padding:80px 40px}.section-title{font-size:42px}}@media(max-width:968px){.mainpage-hero{flex-direction:column;text-align:center;gap:70px;padding-top:60px}.hero-content-wrapper{max-width:100%}.hero-actions{justify-content:center;flex-wrap:wrap}.hero-stats{justify-content:center}.hero-illustration{width:100%;height:450px}.footer-content-main{grid-template-columns:1fr;gap:45px}.steps-container-main{flex-direction:column;gap:70px}.step-connector-main{width:3px;height:70px;margin:-35px 0}.cta-card-main{flex-direction:column;text-align:center;padding:70px 45px}.cta-decoration{margin-top:50px}.topics-grid{grid-template-columns:1fr}}@media(max-width:768px){.hero-title{font-size:44px}.hero-description{font-size:18px}.hero-actions{flex-direction:column;width:100%;gap:15px}.btn-hero-primary,.btn-hero-secondary{width:100%;justify-content:center}.section-title{font-size:38px}.section-subtitle{font-size:17px}.features-grid{grid-template-columns:1fr}.cta-title-main{font-size:36px}.cta-description-main{font-size:17px}.mainpage-footer{padding:50px 35px 25px}.mainpage-features,.mainpage-topics,.mainpage-how-it-works{padding:60px 30px}}@media(max-width:480px){.mainpage-hero{padding:50px 20px}.hero-title{font-size:36px}.hero-badge{font-size:13px;padding:8px 20px}.mainpage-features,.mainpage-topics,.mainpage-how-it-works,.mainpage-cta{padding:50px 20px}.section-title{font-size:32px}.section-subtitle{font-size:16px}.stat-number{font-size:28px}.stat-label{font-size:13px}.hero-stats{gap:25px}.cta-card-main{padding:50px 30px}}.quiz-results-container{max-width:1000px;margin:0 auto;background:#fffffffa;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:32px;padding:4rem 3rem;box-shadow:0 25px 70px #0003,0 0 0 1px #ffffff80;position:relative;z-index:1;animation:slideUp .8s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}.results-header{text-align:center;margin-bottom:3rem}.results-icon{font-size:6rem;margin-bottom:1.5rem;animation:bounceIn .8s ease}.results-title{font-size:3rem;font-weight:800;margin-bottom:1rem;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.results-subtitle{font-size:1.25rem;color:#6b7280;font-weight:500}.score-display{text-align:center;margin-bottom:3rem}.score-circle{width:220px;height:220px;margin:0 auto 1.5rem;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;animation:scaleIn .6s ease .3s backwards}@keyframes scaleIn{0%{transform:scale(0);opacity:0}to{transform:scale(1);opacity:1}}.score-circle.excellent{background:linear-gradient(135deg,#d1fae5,#a7f3d0);border:8px solid #10b981;box-shadow:0 15px 50px #10b98166}.score-circle.good{background:linear-gradient(135deg,#dbeafe,#bfdbfe);border:8px solid #3b82f6;box-shadow:0 15px 50px #3b82f666}.score-circle.needs-improvement{background:linear-gradient(135deg,#fef3c7,#fde68a);border:8px solid #f59e0b;box-shadow:0 15px 50px #f59e0b66}.score-percentage{font-size:4rem;font-weight:900;line-height:1;margin-bottom:.5rem}.score-circle.excellent .score-percentage{color:#065f46}.score-circle.good .score-percentage{color:#1e40af}.score-circle.needs-improvement .score-percentage{color:#92400e}.score-label{font-size:1rem;font-weight:700;text-transform:uppercase;letter-spacing:1px}.score-circle.excellent .score-label{color:#047857}.score-circle.good .score-label{color:#1d4ed8}.score-circle.needs-improvement .score-label{color:#b45309}.performance-badge{display:inline-block;padding:1rem 2.5rem;border-radius:50px;font-weight:800;font-size:1.25rem;text-transform:uppercase;letter-spacing:1px;margin-bottom:.5rem}.performance-badge.excellent{background:linear-gradient(135deg,#10b981,#059669);color:#fff;box-shadow:0 8px 25px #10b98166}.performance-badge.good{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff;box-shadow:0 8px 25px #3b82f666}.performance-badge.needs-improvement{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff;box-shadow:0 8px 25px #f59e0b66}.results-stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-bottom:3rem}.results-stat-card{padding:2rem;border-radius:20px;text-align:center;border:3px solid;transition:all .3s ease;animation:fadeInUp .6s ease backwards}.results-stat-card:nth-child(1){animation-delay:.1s}.results-stat-card:nth-child(2){animation-delay:.2s}.results-stat-card:nth-child(3){animation-delay:.3s}.results-stat-card:hover{transform:translateY(-8px);box-shadow:0 12px 35px #00000026}.results-stat-card.total{background:linear-gradient(135deg,#dbeafe,#bfdbfe);border-color:#3b82f6}.results-stat-card.correct{background:linear-gradient(135deg,#d1fae5,#a7f3d0);border-color:#10b981}.results-stat-card.time{background:linear-gradient(135deg,#f3e8ff,#e9d5ff);border-color:#a855f7}.stat-icon-large{font-size:3rem;margin-bottom:1rem}.stat-value-large{font-size:2.5rem;font-weight:900;margin-bottom:.5rem}.results-stat-card.total .stat-value-large{color:#1e40af}.results-stat-card.correct .stat-value-large{color:#065f46}.results-stat-card.time .stat-value-large{color:#6b21a8}.stat-label-large{font-size:1rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px}.results-stat-card.total .stat-label-large{color:#1d4ed8}.results-stat-card.correct .stat-label-large{color:#047857}.results-stat-card.time .stat-label-large{color:#7e22ce}.detailed-stats{background:linear-gradient(135deg,#f9fafb,#f3f4f6);padding:2.5rem;border-radius:20px;margin-bottom:3rem;border:2px solid #e5e7eb}.detailed-stats h3{font-size:1.5rem;font-weight:800;color:#1f2937;margin-bottom:2rem;text-align:center}.stats-row{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem;margin-bottom:1.5rem}.stat-item{display:flex;justify-content:space-between;align-items:center;padding:1.25rem 1.5rem;background:#fff;border-radius:12px;border:2px solid #e5e7eb;transition:all .3s ease}.stat-item:hover{border-color:#667eea;transform:translate(5px);box-shadow:0 4px 15px #667eea33}.stat-item-label{font-weight:600;color:#6b7280;display:flex;align-items:center;gap:.5rem}.stat-item-value{font-weight:800;font-size:1.25rem;color:#1f2937}.feedback-section{display:grid;grid-template-columns:repeat(2,1fr);gap:2rem;margin-bottom:3rem}.feedback-card{padding:2rem;border-radius:20px;border:3px solid}.feedback-card.strengths{background:linear-gradient(135deg,#d1fae5,#a7f3d0);border-color:#10b981}.feedback-card.improvements{background:linear-gradient(135deg,#fef3c7,#fde68a);border-color:#f59e0b}.feedback-card h4{font-size:1.25rem;font-weight:800;margin-bottom:1.5rem;display:flex;align-items:center;gap:.75rem}.feedback-card.strengths h4{color:#065f46}.feedback-card.improvements h4{color:#92400e}.feedback-list{list-style:none;padding:0;margin:0}.feedback-list li{padding:1rem 1.25rem;background:#fff;border-radius:10px;margin-bottom:.75rem;font-weight:600;display:flex;align-items:flex-start;gap:.75rem;border:2px solid}.feedback-card.strengths .feedback-list li{border-color:#6ee7b7;color:#047857}.feedback-card.improvements .feedback-list li{border-color:#fcd34d;color:#b45309}.feedback-list li:last-child{margin-bottom:0}.feedback-list li span:first-child{font-size:1.25rem;flex-shrink:0}.time-analysis-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:1rem;margin-top:1rem}.time-analysis-item{background:#fff;padding:1rem;border-radius:12px;border:2px solid #e5e7eb;text-align:center;transition:all .3s ease}.time-analysis-item:hover{transform:translateY(-3px);border-color:#667eea;box-shadow:0 4px 15px #667eea33}.time-question-number{display:block;font-size:.75rem;font-weight:700;color:#6b7280;text-transform:uppercase;letter-spacing:.5px;margin-bottom:.5rem}.time-value{display:block;font-size:1.5rem;font-weight:900;color:#1f2937;margin-bottom:.75rem}.time-bar-container{height:6px;background:#e5e7eb;border-radius:3px;overflow:hidden}.time-bar{height:100%;background:linear-gradient(90deg,#667eea,#764ba2);border-radius:3px;transition:width 1s ease}.skill-progress-section{background:linear-gradient(135deg,#eff6ff,#dbeafe);padding:2.5rem;border-radius:20px;margin-bottom:3rem;border:3px solid #93c5fd}.skill-progress-section h4{font-size:1.5rem;font-weight:800;color:#1e40af;margin-bottom:1.5rem;text-align:center}.skill-meter{background:#fff;padding:2rem;border-radius:16px;border:2px solid #bfdbfe}.skill-values{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.skill-current{font-size:2rem;font-weight:900;color:#1e40af}.skill-change{font-size:1.25rem;font-weight:800;padding:.5rem 1rem;border-radius:50px}.skill-change.positive{background:linear-gradient(135deg,#d1fae5,#a7f3d0);color:#065f46}.skill-change.negative{background:linear-gradient(135deg,#fee2e2,#fecaca);color:#991b1b}.skill-bar-container{height:20px;background:#e5e7eb;border-radius:10px;overflow:hidden;position:relative}.skill-bar-fill{height:100%;background:linear-gradient(90deg,#3b82f6,#2563eb);border-radius:10px;transition:width 1s ease;position:relative;overflow:hidden}.skill-bar-fill:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.4),transparent);animation:shimmer 2s infinite}.skill-labels{display:flex;justify-content:space-between;margin-top:.75rem;font-size:.75rem;font-weight:700;color:#6b7280;text-transform:uppercase;letter-spacing:.5px}.results-footer{text-align:center;padding-top:2rem;border-top:2px solid #e5e7eb;margin-top:2rem}.results-footer .footer-text{font-size:.875rem;color:#6b7280;font-weight:600;margin:0}.results-footer .footer-text strong{color:#667eea;font-weight:800}.results-footer .footer-emoji{margin-left:.25rem}.results-actions{display:flex;gap:1.5rem;justify-content:center}.restart-button,.view-details-button{padding:1.25rem 3rem;border-radius:16px;font-size:1.1rem;font-weight:700;cursor:pointer;border:none;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;gap:.75rem}.restart-button:before,.view-details-button:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#ffffff4d;transform:translate(-50%,-50%);transition:width .6s,height .6s}.restart-button:hover:before,.view-details-button:hover:before{width:400px;height:400px}.restart-button{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;box-shadow:0 8px 25px #667eea66}.restart-button:hover{transform:translateY(-3px);box-shadow:0 12px 35px #667eea80}.view-details-button{background:linear-gradient(135deg,#f3f4f6,#e5e7eb);color:#374151;box-shadow:0 4px 15px #0000001a}.view-details-button:hover{background:linear-gradient(135deg,#e5e7eb,#d1d5db);transform:translateY(-3px);box-shadow:0 8px 25px #00000026}.restart-button span:first-child,.view-details-button span:first-child{font-size:1.25rem;position:relative;z-index:1}.restart-button span:last-child,.view-details-button span:last-child{position:relative;z-index:1}@media(max-width:768px){.quiz-results-container{padding:3rem 2rem}.results-title{font-size:2.25rem}.results-stats-grid,.stats-row,.feedback-section{grid-template-columns:1fr}.results-actions{flex-direction:column}.restart-button,.view-details-button{width:100%}.score-circle{width:180px;height:180px}.score-percentage{font-size:3rem}.time-analysis-grid{grid-template-columns:repeat(auto-fill,minmax(100px,1fr))}}.restart-button:focus,.view-details-button:focus{outline:3px solid #667eea;outline-offset:3px}.custom-quiz-container{min-height:100vh;background:linear-gradient(135deg,#f5f7fa,#c3cfe2);padding:2rem}.quiz-content{max-width:1100px;margin:0 auto;display:flex;flex-direction:column;gap:2rem;padding:2rem 0}.custom-quiz-container.loading{display:flex;align-items:center;justify-content:center}.loading-card{background:#fff;border-radius:24px;padding:4rem 6rem;text-align:center;box-shadow:0 20px 60px #0000001a;border:2px solid #f3f4f6}.loading-spinner{width:64px;height:64px;border:6px solid #e5e7eb;border-top-color:#667eea;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 1.5rem}.loading-text{font-size:1.125rem;color:#6b7280;font-weight:600;margin:0}.custom-quiz-container.error{display:flex;align-items:center;justify-content:center}.error-card{background:#fff;border-radius:24px;padding:4rem 3rem;text-align:center;max-width:500px;box-shadow:0 20px 60px #ef444426;border:3px solid #fee2e2}.error-icon{font-size:5rem;margin-bottom:1.5rem}.error-title{font-size:2rem;font-weight:900;color:#1f2937;margin:0 0 1rem}.error-message{font-size:1.125rem;color:#6b7280;margin:0 0 2rem;font-weight:500}.error-button{padding:1rem 2.5rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:12px;font-weight:700;font-size:1rem;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #667eea4d}.error-button:hover{transform:translateY(-3px);box-shadow:0 8px 25px #667eea66}.custom-quiz-container.start{display:flex;align-items:center;justify-content:center}.start-card{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:32px;padding:4rem 5rem;text-align:center;max-width:700px;width:100%;box-shadow:0 25px 80px #667eea66;color:#fff;position:relative;overflow:hidden}.start-card:before{content:"";position:absolute;inset:0;background:linear-gradient(45deg,rgba(255,255,255,.1) 0%,transparent 100%);pointer-events:none}.start-icon-circle{width:120px;height:120px;background:#fff3;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 2rem;border:4px solid rgba(255,255,255,.3);animation:float 3s ease-in-out infinite;position:relative;z-index:1}.start-icon{font-size:4rem;line-height:1}.start-title{font-size:2.75rem;font-weight:900;margin:0 0 1.5rem;text-shadow:0 2px 10px rgba(0,0,0,.2);position:relative;z-index:1}.start-topic{font-size:1.375rem;margin:0 0 .75rem;color:#fffffff2;font-weight:500;position:relative;z-index:1}.start-topic strong{font-weight:800}.start-difficulty{font-size:1rem;margin:0 0 3rem;color:#ffffffe6;position:relative;z-index:1}.difficulty-text{text-transform:capitalize;font-weight:800}.start-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem;max-width:500px;margin:0 auto 3rem;position:relative;z-index:1}.start-stat-card{background:#ffffff26;border:2px solid rgba(255,255,255,.2);border-radius:16px;padding:2rem 1.5rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.start-stat-icon{font-size:2.5rem;margin-bottom:.75rem}.start-stat-value{font-size:2rem;font-weight:900;margin:0 0 .25rem}.start-stat-label{font-size:1rem;font-weight:600;margin:0;color:#ffffffe6}.start-button{padding:1.5rem 3.5rem;background:#fff;color:#667eea;border:none;border-radius:16px;font-weight:900;font-size:1.25rem;cursor:pointer;display:inline-flex;align-items:center;gap:.75rem;transition:all .3s ease;box-shadow:0 10px 30px #0003;position:relative;z-index:1}.start-button:hover{transform:translateY(-4px) scale(1.05);box-shadow:0 15px 40px #0000004d;background:#f8fafc}.start-button .button-icon{font-size:1.5rem}.quiz-header-card{background:#fff;border-radius:24px;padding:2rem;box-shadow:0 10px 40px #00000014;border:2px solid #f3f4f6}.quiz-header-top{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:2rem;gap:1.5rem;flex-wrap:wrap}.quiz-title-section{flex:1;min-width:250px}.quiz-title{font-size:1.75rem;font-weight:900;color:#1f2937;margin:0 0 .5rem;line-height:1.3}.quiz-progress-text{font-size:1rem;color:#6b7280;margin:0;font-weight:600}.current-q{color:#667eea;font-weight:900;font-size:1.125rem}.quiz-status-badge{display:flex;align-items:center;gap:.625rem;padding:.75rem 1.5rem;background:linear-gradient(135deg,#d1fae5,#a7f3d0);border:2px solid #10b981;border-radius:25px;font-weight:700;color:#065f46;font-size:.9375rem;white-space:nowrap}.pulse-dot{width:10px;height:10px;background:#10b981;border-radius:50%;animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}.exit-button{display:flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;background:linear-gradient(135deg,#fee2e2,#fecaca);border:2px solid #ef4444;border-radius:12px;color:#991b1b;font-weight:700;font-size:.9375rem;cursor:pointer;transition:all .3s ease;white-space:nowrap}.exit-button:hover{background:linear-gradient(135deg,#fecaca,#fca5a5);transform:translateY(-2px);box-shadow:0 4px 15px #ef44444d}.quiz-stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem;margin-bottom:2rem}.stat-card{display:flex;align-items:center;gap:1rem;padding:1.25rem;border-radius:16px;border:2px solid;transition:all .3s ease}.stat-card.timer{background:linear-gradient(135deg,#dbeafe,#bfdbfe);border-color:#3b82f6}.stat-card.timer.warning{background:linear-gradient(135deg,#fee2e2,#fecaca);border-color:#ef4444;animation:shake .5s ease-in-out infinite}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-3px)}75%{transform:translate(3px)}}.stat-card.total-time{background:linear-gradient(135deg,#e9d5ff,#d8b4fe);border-color:#a855f7}.stat-card.score{background:linear-gradient(135deg,#d1fae5,#a7f3d0);border-color:#10b981}.stat-card.correct{background:linear-gradient(135deg,#fef3c7,#fde68a);border-color:#f59e0b}.stat-icon{font-size:2rem;line-height:1}.stat-label{font-size:.75rem;font-weight:700;color:#4b5563;text-transform:uppercase;letter-spacing:.5px;margin:0 0 .25rem}.stat-value{font-size:1.375rem;font-weight:900;color:#1f2937;margin:0;line-height:1}.stat-card.timer.warning .stat-value{color:#991b1b}.progress-section{background:linear-gradient(135deg,#f3f4f6,#e5e7eb);padding:1.5rem;border-radius:16px;border:2px solid #d1d5db}.progress-header{display:flex;justify-content:space-between;margin-bottom:.75rem;font-size:.875rem;font-weight:700;color:#4b5563}.progress-bar-container{height:12px;background:#fff;border-radius:6px;overflow:hidden;border:2px solid #d1d5db}.progress-bar-fill{height:100%;background:linear-gradient(90deg,#667eea,#764ba2);border-radius:4px;transition:width .5s ease;position:relative}.progress-bar-fill:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.4),transparent);animation:shimmer 2s infinite}.question-card{background:#fff;border-radius:24px;padding:3rem;box-shadow:0 10px 40px #00000014;border:2px solid #f3f4f6;animation:slideUp .4s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.question-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:2rem;gap:1rem;flex-wrap:wrap}.question-badge{padding:.75rem 1.5rem;background:linear-gradient(135deg,#dbeafe,#bfdbfe);border:2px solid #3b82f6;border-radius:12px;font-weight:800;color:#1e40af;font-size:.9375rem}.difficulty-badge{padding:.75rem 1.5rem;background:linear-gradient(135deg,#e9d5ff,#d8b4fe);border:2px solid #a855f7;border-radius:12px;font-weight:800;color:#6b21a8;font-size:.9375rem;text-transform:capitalize}.question-text{font-size:1.75rem;font-weight:800;color:#1f2937;line-height:1.5;margin:0 0 2.5rem}.options-container{display:flex;flex-direction:column;gap:1.25rem;margin-bottom:2rem}.option-button{width:100%;padding:1.5rem 1.75rem;background:#fff;border:3px solid #e5e7eb;border-radius:16px;cursor:pointer;transition:all .3s ease;text-align:left}.option-button:hover:not(.disabled){border-color:#667eea;background:linear-gradient(135deg,#f8fafc,#eff6ff);transform:translate(8px);box-shadow:0 6px 20px #667eea26}.option-button.selected{background:linear-gradient(135deg,#dbeafe,#bfdbfe);border-color:#3b82f6;box-shadow:0 6px 20px #3b82f64d}.option-button.correct{background:linear-gradient(135deg,#d1fae5,#a7f3d0);border-color:#10b981;box-shadow:0 6px 20px #10b9814d}.option-button.incorrect{background:linear-gradient(135deg,#fee2e2,#fecaca);border-color:#ef4444;box-shadow:0 6px 20px #ef44444d}.option-button.disabled{background:#f9fafb;border-color:#e5e7eb;cursor:not-allowed;opacity:.6}.option-button:disabled{cursor:not-allowed}.option-content{display:flex;align-items:center;gap:1.25rem}.option-indicator{font-size:1.5rem;line-height:1;min-width:30px}.option-label{display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-radius:10px;font-weight:900;font-size:1.125rem;flex-shrink:0}.option-button.correct .option-label{background:linear-gradient(135deg,#10b981,#059669)}.option-button.incorrect .option-label{background:linear-gradient(135deg,#ef4444,#dc2626)}.option-text{flex:1;font-weight:700;color:#1f2937;font-size:1.0625rem;line-height:1.6}.explanation-box{border-radius:16px;padding:2rem;margin-bottom:2rem;border:3px solid}.explanation-header{display:flex;align-items:center;gap:.75rem;margin-bottom:1.25rem}.explanation-icon{width:40px;height:40px;background:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:1.25rem}.explanation-box.correct .explanation-icon{color:#10b981;border:3px solid #10b981}.explanation-box.incorrect .explanation-icon{color:#ef4444;border:3px solid #ef4444}.explanation-title{font-size:1.25rem;font-weight:900}.explanation-box.correct .explanation-title{color:#065f46}.explanation-box.incorrect .explanation-title{color:#991b1b}.explanation-content{margin-bottom:1rem}.explanation-text{font-size:1.0625rem;line-height:1.7;font-weight:600;margin:0}.explanation-box.correct .explanation-text{color:#065f46}.explanation-box.incorrect .explanation-text{color:#991b1b}.correct-answer-section{background:#fff;padding:1.25rem;border-radius:12px;margin-top:1.25rem;border:2px solid #fca5a5}.correct-answer-label{font-weight:800;color:#991b1b;margin-bottom:.5rem;font-size:.9375rem;text-transform:uppercase;letter-spacing:.5px}.correct-answer-text{font-weight:700;color:#b91c1c;font-size:1.0625rem;line-height:1.6}.quiz-actions{display:flex;gap:1.25rem;margin-bottom:2rem}.submit-button,.next-button{flex:1;padding:1.375rem 2.5rem;border:none;border-radius:14px;font-weight:800;font-size:1.125rem;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:.75rem}.submit-button{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;box-shadow:0 6px 20px #667eea4d}.next-button{background:linear-gradient(90deg,#3b82f6,#8b5cf6);color:#fff;box-shadow:0 6px 20px #3b82f64d}.next-button:hover{transform:translateY(-3px);box-shadow:0 10px 30px #3b82f666}.submit-button .button-icon,.next-button .button-icon{font-size:1.375rem}.quiz-footer{text-align:center;padding-top:2rem;border-top:2px solid #e5e7eb}.footer-text{font-size:.9375rem;color:#6b7280;font-weight:600;margin:0}.footer-emoji{margin-left:.375rem}@media(max-width:768px){.custom-quiz-container{padding:1rem}.quiz-content{padding:1rem 0}.quiz-header-card,.question-card{padding:1.75rem}.quiz-header-top{flex-direction:column}.quiz-stats-grid{grid-template-columns:1fr}.start-card{padding:3rem 2rem}.start-title{font-size:2.25rem}.start-stats{grid-template-columns:1fr}.question-header{flex-direction:column;align-items:flex-start}.question-text{font-size:1.375rem}.option-content{gap:.875rem}.option-label{width:35px;height:35px;font-size:1rem}.quiz-actions{flex-direction:column}}@media print{.custom-quiz-container{background:#fff}.exit-button,.quiz-status-badge,.quiz-actions{display:none}.quiz-header-card,.question-card{box-shadow:none;border:1px solid #e5e7eb}}.question-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:2rem;padding-bottom:1.25rem;border-bottom:2px solid #f3f4f6;flex-wrap:wrap;gap:.75rem}.question-badge{display:inline-flex;align-items:center;padding:.625rem 1.25rem;background:linear-gradient(135deg,#dbeafe,#bfdbfe);color:#1e40af;border-radius:10px;font-weight:700;font-size:.875rem;border:2px solid #93c5fd;line-height:1.4}.difficulty-badge{display:inline-flex;align-items:center;padding:.625rem 1.25rem;background:linear-gradient(135deg,#f3e8ff,#e9d5ff);color:#6b21a8;border-radius:10px;font-weight:700;font-size:.875rem;text-transform:capitalize;border:2px solid #d8b4fe;line-height:1.4}.question-topic{font-size:.8125rem;font-weight:700;color:#6b7280;margin-bottom:.5rem;text-transform:uppercase;letter-spacing:.5px}.question-difficulty-text{font-size:.8125rem;font-weight:700;color:#6b21a8;display:inline-flex;align-items:center;gap:.375rem}.question-text{font-size:1.125rem;font-weight:700;color:#1f2937;line-height:1.7;margin-bottom:2rem;letter-spacing:-.01em}.question-text code{background:linear-gradient(135deg,#f3f4f6,#e5e7eb);padding:.25rem .5rem;border-radius:6px;font-family:Monaco,Menlo,Courier New,monospace;font-size:1rem;font-weight:600;color:#374151;border:1px solid #d1d5db}.option-button{width:100%;padding:1.25rem 1.5rem;text-align:left;border-radius:14px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);border:3px solid #e5e7eb;background:linear-gradient(135deg,#fff,#f9fafb);color:#374151;position:relative;overflow:hidden;line-height:1.6}.option-label{font-weight:800;margin-right:.75rem;color:#6b7280;font-size:.9375rem}.option-text{flex:1;font-weight:600;font-size:1rem;line-height:1.6}.explanation-box{padding:1.75rem 2rem;border-radius:16px;margin-bottom:1.75rem;border:3px solid;animation:slideIn .4s ease}.explanation-header{font-weight:800;font-size:1.125rem;margin-bottom:1rem;display:flex;align-items:center;gap:.75rem}.explanation-header-icon{font-size:1.5rem}.explanation-text{font-size:.9375rem;line-height:1.8;font-weight:500}.correct-answer-section{margin-top:1.25rem;padding-top:1.25rem;border-top:2px solid rgba(0,0,0,.1)}.correct-answer-label{font-weight:700;font-size:.875rem;color:#065f46;margin-bottom:.5rem;text-transform:uppercase;letter-spacing:.5px}.correct-answer-text{font-size:.9375rem;font-weight:600;color:#047857;padding:.75rem 1rem;background:#fff9;border-radius:10px;border:2px solid #6ee7b7}.key-learning-section{margin-top:1.5rem;padding:1.5rem 1.75rem;background:linear-gradient(135deg,#fef3c7,#fde68a);border-radius:14px;border:2px solid #fbbf24}.key-learning-header{font-weight:800;font-size:1rem;color:#78350f;margin-bottom:1rem;display:flex;align-items:center;gap:.625rem}.key-learning-list{list-style:none;padding:0;margin:0}.key-learning-list li{padding:.75rem 1rem .75rem 2.5rem;background:#fff;border-radius:10px;margin-bottom:.75rem;color:#92400e;font-weight:600;border:2px solid #fcd34d;font-size:.9375rem;line-height:1.6;position:relative}.key-learning-list li:before{content:"✓";position:absolute;left:1rem;font-weight:900;color:#10b981;font-size:1.125rem}.key-learning-list li:last-child{margin-bottom:0}.hints-section{background:linear-gradient(135deg,#fef3c7,#fde68a);padding:1.5rem 1.75rem;border-radius:14px;border:2px solid #fbbf24;margin-bottom:1.75rem}.hints-header{font-weight:800;color:#78350f;margin-bottom:1rem;display:flex;align-items:center;gap:.625rem;font-size:1rem}.hints-header-icon{font-size:1.25rem}.hints-list li{padding:.875rem 1.125rem;background:#fff;border-radius:10px;margin-bottom:.75rem;color:#92400e;font-weight:600;border:2px solid #fcd34d;font-size:.9375rem;line-height:1.6}.skill-update-section{background:linear-gradient(135deg,#eff6ff,#dbeafe);padding:1.5rem 1.75rem;border-radius:14px;border:2px solid #93c5fd;margin-top:1.75rem}.skill-update-header{font-weight:800;font-size:1rem;color:#1e40af;margin-bottom:1rem;display:flex;align-items:center;gap:.625rem}.skill-stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.skill-stat-item{background:#fff;padding:1rem;border-radius:10px;border:2px solid #bfdbfe;text-align:center}.skill-stat-label{font-size:.75rem;font-weight:700;color:#6b7280;text-transform:uppercase;letter-spacing:.5px;margin-bottom:.5rem}.skill-stat-value{font-size:1.5rem;font-weight:900;color:#1e40af;line-height:1}.points-badge{display:inline-flex;align-items:center;padding:.5rem 1rem;background:linear-gradient(135deg,#fef3c7,#fde68a);border:2px solid #fbbf24;border-radius:50px;font-weight:800;color:#78350f;font-size:.9375rem;gap:.375rem}.submit-button,.next-button{flex:1;padding:1.125rem 2rem;border-radius:14px;font-size:1rem;font-weight:700;cursor:pointer;border:none;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;gap:.625rem}.button-icon{font-size:1.125rem;position:relative;z-index:1}.button-text{position:relative;z-index:1}.quiz-footer{margin-top:2rem;padding-top:1.5rem;border-top:2px solid #e5e7eb;text-align:center}.footer-text{font-size:.8125rem;color:#6b7280;font-weight:600;line-height:1.6}.footer-text strong{color:#667eea;font-weight:800}.footer-emoji{margin-left:.25rem}@media(max-width:768px){.question-card{padding:2rem 1.5rem}.question-header{flex-direction:column;align-items:flex-start}.question-text{font-size:1.0625rem}.option-button{padding:1.125rem 1.25rem;font-size:.9375rem}.quiz-actions{flex-direction:column}.skill-stats-grid{grid-template-columns:1fr}}.submit-button:focus,.next-button:focus,.option-button:focus{outline:3px solid #667eea;outline-offset:2px}.quiz-container{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);padding:2rem;position:relative;overflow:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}.quiz-container:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 50%,rgba(120,119,198,.3) 0%,transparent 50%),radial-gradient(circle at 80% 80%,rgba(138,43,226,.3) 0%,transparent 50%),radial-gradient(circle at 40% 20%,rgba(72,118,255,.3) 0%,transparent 50%);animation:backgroundMove 20s ease infinite;pointer-events:none}.quiz-start-screen{max-width:700px;margin:0 auto;background:#fffffffa;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:32px;padding:4rem 3rem;box-shadow:0 25px 70px #0003,0 0 0 1px #ffffff80;text-align:center;position:relative;z-index:1;animation:slideUp .6s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.quiz-icon{width:100px;height:100px;background:linear-gradient(135deg,#667eea33,#764ba233);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 2rem;font-size:3.5rem;animation:float 3s ease-in-out infinite}.quiz-start-screen h2{font-size:2.75rem;font-weight:800;color:#1f2937;margin-bottom:1rem;line-height:1.2}.quiz-start-screen p{font-size:1.125rem;color:#6b7280;margin-bottom:3rem;font-weight:500;line-height:1.6}.quiz-start-screen p strong{color:#667eea;font-weight:700}.quiz-info-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem;margin-bottom:3rem}.quiz-info-card{background:linear-gradient(135deg,#667eea1a,#764ba21a);padding:2rem;border-radius:20px;border:2px solid rgba(102,126,234,.2);transition:all .3s ease}.quiz-info-card:hover{transform:translateY(-4px);box-shadow:0 8px 25px #667eea40}.quiz-info-card p:first-child{font-size:2.5rem;margin-bottom:.75rem}.quiz-info-card p:last-child{font-size:1rem;font-weight:700;color:#374151;margin:0}.start-quiz-button{padding:1.25rem 3rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:16px;font-size:1.125rem;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;gap:1rem;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 8px 25px #667eea66;position:relative;overflow:hidden}.start-quiz-button:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#ffffff4d;transform:translate(-50%,-50%);transition:width .6s,height .6s}.start-quiz-button:hover:before{width:400px;height:400px}.start-quiz-button:hover{transform:translateY(-3px);box-shadow:0 12px 35px #667eea80}.start-quiz-button span:first-child{font-size:1.5rem;position:relative;z-index:1}.start-quiz-button span:last-child{position:relative;z-index:1}.quiz-loading{text-align:center}.quiz-active-container{max-width:1100px;margin:0 auto;position:relative;z-index:1}.quiz-active-container>*+*{margin-top:1.75rem}.quiz-header-card{background:#fffffffa;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:20px;padding:1.75rem 2rem;box-shadow:0 10px 40px #0000001f,0 0 0 1px #ffffff80;animation:slideDown .6s ease}@keyframes slideDown{0%{opacity:0;transform:translateY(-30px)}to{opacity:1;transform:translateY(0)}}.quiz-header-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding-bottom:1.25rem;border-bottom:2px solid #e5e7eb}.quiz-title-section h2{font-size:1.5rem;font-weight:800;color:#1f2937;margin:0 0 .5rem;line-height:1.3}.quiz-progress-text{font-size:.875rem;color:#6b7280;font-weight:600;margin:0;line-height:1.4}.quiz-progress-text .current-question{color:#667eea;font-weight:800;font-size:.9375rem}.quiz-status-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.625rem 1.25rem;background:linear-gradient(135deg,#d1fae5,#a7f3d0);border:2px solid #10b981;border-radius:50px;font-size:.8125rem;font-weight:700;color:#065f46;text-transform:uppercase;letter-spacing:.5px}.quiz-status-badge .pulse-dot{width:8px;height:8px;background:#10b981;border-radius:50%;animation:pulse 2s infinite}.exit-quiz-button{padding:.75rem 1.5rem;background:linear-gradient(135deg,#fee2e2,#fecaca);color:#991b1b;border:2px solid #f87171;border-radius:12px;font-weight:700;cursor:pointer;display:flex;align-items:center;gap:.5rem;transition:all .3s ease;font-size:.9375rem}.exit-quiz-button:hover{background:linear-gradient(135deg,#fecaca,#fca5a5);transform:translateY(-2px);box-shadow:0 4px 15px #ef44444d}.exit-quiz-button span:first-child{font-size:1.125rem}.quiz-stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-bottom:1.25rem}.stat-card{display:flex;align-items:center;gap:.875rem;padding:1rem 1.25rem;border-radius:14px;transition:all .3s ease;border:2px solid transparent}.stat-card:hover{transform:translateY(-3px);box-shadow:0 6px 20px #0000001a}.stat-card.timer{background:linear-gradient(135deg,#dbeafe,#bfdbfe);border-color:#93c5fd}.stat-card.timer.warning{background:linear-gradient(135deg,#fee2e2,#fecaca);border-color:#f87171;animation:pulseCard 1s infinite}@keyframes pulseCard{0%,to{opacity:1}50%{opacity:.9}}.stat-card.total-time{background:linear-gradient(135deg,#f3e8ff,#e9d5ff);border-color:#d8b4fe}.stat-card.score{background:linear-gradient(135deg,#d1fae5,#a7f3d0);border-color:#6ee7b7}.stat-card.correct{background:linear-gradient(135deg,#fef3c7,#fde68a);border-color:#fcd34d}.stat-icon{font-size:1.75rem;line-height:1}.stat-label{font-size:.6875rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;margin-bottom:.25rem;opacity:.8;line-height:1}.stat-value{font-size:1.25rem;font-weight:800;line-height:1.2}.stat-card.timer .stat-label{color:#1e40af}.stat-card.timer .stat-value{color:#1e3a8a}.stat-card.timer.warning .stat-label{color:#991b1b}.stat-card.timer.warning .stat-value{color:#7f1d1d}.stat-card.total-time .stat-label{color:#6b21a8}.stat-card.total-time .stat-value{color:#581c87}.stat-card.score .stat-label{color:#065f46}.stat-card.score .stat-value{color:#064e3b}.stat-card.correct .stat-label{color:#92400e}.stat-card.correct .stat-value{color:#78350f}.progress-bar-section{margin-top:1.25rem}.progress-bar-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.625rem}.progress-bar-header span:first-child{font-weight:600;color:#4b5563;font-size:.8125rem}.progress-bar-header span:last-child{font-weight:800;color:#667eea;font-size:.8125rem}.progress-bar-container{height:10px;background:#e5e7eb;border-radius:5px;overflow:hidden;box-shadow:inset 0 1px 3px #0000001a}.progress-bar-fill{height:100%;background:linear-gradient(90deg,#667eea,#764ba2);border-radius:5px;transition:width .5s ease;position:relative;overflow:hidden}.progress-bar-fill:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);animation:shimmer 2s infinite}.question-card{background:#fffffffa;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:20px;padding:2.5rem 2.25rem;box-shadow:0 10px 40px #0000001f,0 0 0 1px #ffffff80;animation:fadeIn .6s ease}.question-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:2rem;padding-bottom:1.25rem;border-bottom:2px solid #f3f4f6}.question-badge{display:inline-flex;align-items:center;padding:.625rem 1.25rem;background:linear-gradient(135deg,#dbeafe,#bfdbfe);color:#1e40af;border-radius:10px;font-weight:700;font-size:.875rem;border:2px solid #93c5fd}.difficulty-badge{display:inline-flex;align-items:center;padding:.625rem 1.25rem;background:linear-gradient(135deg,#f3e8ff,#e9d5ff);color:#6b21a8;border-radius:10px;font-weight:700;font-size:.875rem;text-transform:capitalize;border:2px solid #d8b4fe}.question-text{font-size:1.25rem;font-weight:700;color:#1f2937;line-height:1.6;margin-bottom:2rem;letter-spacing:-.01em}.options-grid{display:flex;flex-direction:column;gap:.875rem;margin-bottom:1.75rem}.option-button{width:100%;padding:1.25rem 1.5rem;text-align:left;border-radius:14px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);border:3px solid #e5e7eb;background:linear-gradient(135deg,#fff,#f9fafb);color:#374151;position:relative;overflow:hidden;line-height:1.5}.option-button:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(102,126,234,.1),transparent);transition:left .5s ease}.option-button:hover:before{left:100%}.option-button:hover{border-color:#667eea;background:linear-gradient(135deg,#f0f4ff,#e0e7ff);transform:translate(6px);box-shadow:0 4px 15px #667eea33}.option-button.selected{border-color:#667eea;background:linear-gradient(135deg,#dbeafe,#bfdbfe);color:#1e40af;transform:translate(6px);box-shadow:0 6px 20px #667eea40}.option-button.correct{border-color:#10b981;background:linear-gradient(135deg,#d1fae5,#a7f3d0);color:#065f46;box-shadow:0 6px 20px #10b98140}.option-button.incorrect{border-color:#ef4444;background:linear-gradient(135deg,#fee2e2,#fecaca);color:#991b1b;box-shadow:0 6px 20px #ef444440}.option-button.disabled{background:linear-gradient(135deg,#f3f4f6,#e5e7eb);color:#9ca3af;border-color:#d1d5db;cursor:not-allowed}.option-button.disabled:hover{transform:none}.option-content{display:flex;align-items:center;gap:.875rem}.option-icon{font-size:1.25rem;min-width:24px;flex-shrink:0}.explanation-box{padding:1.5rem 1.75rem;border-radius:14px;margin-bottom:1.75rem;border:3px solid;animation:slideIn .4s ease}.explanation-box.correct{background:linear-gradient(135deg,#d1fae5,#a7f3d0);border-color:#10b981}.explanation-box.incorrect{background:linear-gradient(135deg,#fee2e2,#fecaca);border-color:#ef4444}.explanation-header{font-weight:800;font-size:1.0625rem;margin-bottom:.75rem}.explanation-box.correct .explanation-header{color:#065f46}.explanation-box.incorrect .explanation-header{color:#991b1b}.explanation-text{font-size:.9375rem;line-height:1.7}.explanation-box.correct .explanation-text{color:#047857}.explanation-box.incorrect .explanation-text{color:#b91c1c}.hints-section{background:linear-gradient(135deg,#fef3c7,#fde68a);padding:1.25rem 1.5rem;border-radius:14px;border:2px solid #fbbf24;margin-bottom:1.75rem}.hints-header{font-weight:700;color:#78350f;margin-bottom:.875rem;display:flex;align-items:center;gap:.5rem;font-size:.9375rem}.hints-list{list-style:none;padding:0;margin:0}.hints-list li{padding:.625rem 1rem;background:#fff;border-radius:8px;margin-bottom:.625rem;color:#92400e;font-weight:500;border:1px solid #fcd34d;font-size:.875rem;line-height:1.5}.hints-list li:last-child{margin-bottom:0}.quiz-actions{display:flex;gap:1rem}.submit-button,.next-button{flex:1;padding:1.125rem 2rem;border-radius:14px;font-size:1rem;font-weight:700;cursor:pointer;border:none;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.submit-button:before,.next-button:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#ffffff4d;transform:translate(-50%,-50%);transition:width .6s,height .6s}.submit-button:hover:before,.next-button:hover:before{width:400px;height:400px}.submit-button{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;box-shadow:0 4px 15px #667eea4d}.submit-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.submit-button:disabled{background:linear-gradient(135deg,#d1d5db,#9ca3af);cursor:not-allowed;box-shadow:none}.next-button{background:linear-gradient(135deg,#10b981,#059669);color:#fff;box-shadow:0 4px 15px #10b9814d}.next-button:hover{transform:translateY(-2px);box-shadow:0 6px 20px #10b98166}.loading-state,.error-state{background:#fffffffa;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:20px;padding:3rem 2.5rem;text-align:center;box-shadow:0 10px 40px #0000001f}.loading-state p{font-size:1rem;color:#6b7280;font-weight:600;margin:0}.error-state{background:linear-gradient(135deg,#fee2e2,#fecaca);border:3px solid #f87171}.error-icon{font-size:3.5rem;margin-bottom:1.25rem}.error-message{font-size:1.0625rem;color:#991b1b;font-weight:700;margin-bottom:1.75rem;line-height:1.5}.retry-button{padding:.875rem 1.75rem;background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;border:none;border-radius:12px;font-weight:700;font-size:.9375rem;cursor:pointer;transition:all .3s ease}.retry-button:hover{transform:translateY(-2px);box-shadow:0 6px 20px #ef444466}@media(max-width:1024px){.quiz-stats-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:768px){.quiz-container{padding:1rem}.quiz-start-screen{padding:3rem 2rem;border-radius:24px}.quiz-start-screen h2{font-size:2rem}.quiz-info-grid{grid-template-columns:1fr}.quiz-header-card{padding:1.5rem}.quiz-header-top{flex-direction:column;gap:1rem;align-items:flex-start}.quiz-title-section h2{font-size:1.25rem}.quiz-stats-grid{grid-template-columns:1fr;gap:.875rem}.question-card{padding:2rem 1.5rem}.question-header{flex-direction:column;align-items:flex-start;gap:.75rem}.question-text{font-size:1.125rem}.option-button{padding:1.125rem 1.25rem;font-size:.9375rem}.quiz-actions{flex-direction:column}}.submit-button:focus,.next-button:focus,.option-button:focus,.exit-quiz-button:focus{outline:3px solid #667eea;outline-offset:2px}.custom-quiz-creator{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);padding:2rem;position:relative;overflow:hidden}.custom-quiz-creator:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 50%,rgba(120,119,198,.3) 0%,transparent 50%),radial-gradient(circle at 80% 80%,rgba(138,43,226,.3) 0%,transparent 50%),radial-gradient(circle at 40% 20%,rgba(72,118,255,.3) 0%,transparent 50%);animation:backgroundMove 20s ease infinite;pointer-events:none}@keyframes backgroundMove{0%,to{transform:translate(0)}50%{transform:translate(20px,20px)}}.creator-header{text-align:center;margin-bottom:3rem;position:relative;z-index:1}.creator-header h1{font-size:3rem;font-weight:800;color:#fff;margin-bottom:.5rem;text-shadow:0 4px 20px rgba(0,0,0,.2);letter-spacing:-.5px}.subtitle{font-size:1.25rem;color:#ffffffe6;font-weight:500;text-shadow:0 2px 10px rgba(0,0,0,.1)}.progress-steps{display:flex;align-items:center;justify-content:center;max-width:800px;margin:0 auto 3rem;position:relative;z-index:1}.step{display:flex;flex-direction:column;align-items:center;gap:.75rem;position:relative;z-index:2}.step-number{width:60px;height:60px;border-radius:50%;background:#fff3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:3px solid rgba(255,255,255,.3);display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;color:#fff9;transition:all .4s cubic-bezier(.4,0,.2,1);box-shadow:0 4px 15px #0000001a}.step-label{font-size:.9rem;font-weight:600;color:#ffffffb3;transition:all .3s ease}.step.active .step-number{background:linear-gradient(135deg,#10b981,#059669);border-color:#fff;color:#fff;transform:scale(1.15);box-shadow:0 8px 25px #10b98166}.step.active .step-label{color:#fff;font-weight:700}.step.completed .step-number{background:linear-gradient(135deg,#3b82f6,#2563eb);border-color:#fff;color:#fff;box-shadow:0 4px 20px #3b82f64d}.step.completed .step-label{color:#ffffffe6}.step-line{flex:1;height:4px;background:#fff3;margin:0 1rem;border-radius:2px;position:relative;overflow:hidden}.step-line:after{content:"";position:absolute;top:0;left:0;height:100%;width:0%;background:linear-gradient(90deg,#10b981,#3b82f6);transition:width .6s ease}.step.completed+.step-line:after{width:100%}.step-content{max-width:900px;margin:0 auto;position:relative;z-index:1}.upload-section,.settings-section,.generating-section,.success-section{background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:24px;padding:3rem;box-shadow:0 20px 60px #00000026,0 0 0 1px #ffffff80;border:1px solid rgba(255,255,255,.2)}.upload-section h2,.settings-section h2{font-size:2rem;font-weight:700;color:#1f2937;margin-bottom:.5rem}.upload-section p,.settings-section p{color:#6b7280;font-size:1.1rem;margin-bottom:2rem}.upload-options{display:grid;grid-template-columns:1fr auto 1fr;gap:2rem;align-items:start;margin-top:2rem}.file-upload-box{position:relative}.file-input{display:none}.file-upload-label{display:block;padding:3rem 2rem;border:3px dashed #d1d5db;border-radius:20px;text-align:center;cursor:pointer;transition:all .3s ease;background:linear-gradient(135deg,#f9fafb,#f3f4f6);position:relative;overflow:hidden}.file-upload-label:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(102,126,234,.1),transparent);transition:left .5s ease}.file-upload-label:hover:before{left:100%}.file-upload-label:hover{border-color:#667eea;background:linear-gradient(135deg,#f0f4ff,#e0e7ff);transform:translateY(-4px);box-shadow:0 12px 30px #667eea33}.upload-icon{font-size:4rem;margin-bottom:1rem;animation:float 3s ease-in-out infinite}.upload-text{margin-bottom:.5rem}.upload-text strong{color:#667eea;font-weight:700;font-size:1.1rem}.upload-hint{font-size:.9rem;color:#9ca3af;font-weight:500}.uploaded-file-info{margin-top:1rem;padding:1.25rem;background:linear-gradient(135deg,#ecfdf5,#d1fae5);border-radius:12px;display:flex;align-items:center;gap:1rem;border:2px solid #10b981;animation:slideIn .4s ease}@keyframes slideIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.file-icon{font-size:1.5rem;color:#10b981}.file-name{font-weight:600;color:#065f46;flex:1}.file-size{font-size:.875rem;color:#059669;font-weight:500}.divider{display:flex;align-items:center;justify-content:center;position:relative}.divider span{padding:.75rem 1.25rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;font-weight:700;border-radius:50%;font-size:1rem;box-shadow:0 4px 15px #667eea4d;width:60px;height:60px;display:flex;align-items:center;justify-content:center}.text-paste-box{display:flex;flex-direction:column}.text-paste-box label{font-weight:600;color:#374151;margin-bottom:.75rem;font-size:1rem}.content-textarea{width:100%;min-height:300px;padding:1.25rem;border:2px solid #e5e7eb;border-radius:16px;font-size:.95rem;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;transition:all .3s ease;background:linear-gradient(135deg,#fff,#f9fafb);resize:vertical}.content-textarea:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 4px #667eea1a;background:#fff}.content-textarea::placeholder{color:#9ca3af}.character-count{margin-top:.75rem;font-size:.875rem;color:#6b7280;font-weight:500;text-align:right}.character-count .warning{color:#f59e0b;font-weight:600}.form-group{margin-bottom:2rem}.form-group label{display:block;font-weight:600;color:#374151;margin-bottom:.75rem;font-size:1rem}.form-input{width:100%;padding:1rem 1.25rem;border:2px solid #e5e7eb;border-radius:12px;font-size:1rem;transition:all .3s ease;background:#fff;font-family:inherit}.form-input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 4px #667eea1a}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:2rem}.input-hint{display:block;margin-top:.5rem;font-size:.875rem;color:#6b7280;font-weight:500}.difficulty-options{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}.difficulty-card{padding:1.75rem;border:3px solid #e5e7eb;border-radius:16px;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);background:linear-gradient(135deg,#fff,#f9fafb);position:relative;overflow:hidden}.difficulty-card:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,transparent 0%,rgba(102,126,234,.05) 100%);opacity:0;transition:opacity .3s ease}.difficulty-card:hover:before{opacity:1}.difficulty-card:hover{transform:translateY(-8px);box-shadow:0 12px 30px #0000001f}.difficulty-card.selected{background:linear-gradient(135deg,#eff6ff,#dbeafe);transform:translateY(-8px);box-shadow:0 12px 30px #667eea40}.difficulty-header{display:flex;align-items:center;gap:1rem;margin-bottom:.75rem}.difficulty-icon{font-size:2rem}.difficulty-name{font-weight:700;font-size:1.1rem;color:#1f2937}.difficulty-description{color:#6b7280;font-size:.9rem;line-height:1.5;margin:0}.time-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem;margin-top:2rem}.summary-card{padding:1.5rem;background:linear-gradient(135deg,#f0f9ff,#e0f2fe);border-radius:16px;display:flex;align-items:center;gap:1rem;border:2px solid #bae6fd;transition:all .3s ease}.summary-card:hover{transform:translateY(-4px);box-shadow:0 8px 20px #38bdf833}.summary-icon{font-size:2rem}.summary-content{flex:1}.summary-label{font-size:.85rem;color:#0369a1;font-weight:600;margin-bottom:.25rem;text-transform:uppercase;letter-spacing:.5px}.summary-value{font-size:1.5rem;font-weight:700;color:#0c4a6e}.content-preview-box{background:linear-gradient(135deg,#fef3c7,#fde68a);padding:1.75rem;border-radius:16px;margin-top:2rem;border:2px solid #fbbf24}.content-preview-box h3{font-size:1.25rem;font-weight:700;color:#78350f;margin-bottom:1rem}.preview-item{display:flex;align-items:center;gap:1rem}.preview-label{font-weight:600;color:#92400e;min-width:50px}.preview-value{color:#78350f;font-weight:500}.action-buttons{display:flex;gap:1rem;margin-top:2.5rem;justify-content:flex-end}.btn{padding:1rem 2rem;border-radius:12px;font-weight:600;font-size:1rem;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);border:none;display:inline-flex;align-items:center;gap:.75rem;position:relative;overflow:hidden}.btn:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#ffffff4d;transform:translate(-50%,-50%);transition:width .6s,height .6s}.btn:hover:before{width:300px;height:300px}.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;box-shadow:0 4px 15px #667eea4d}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px #667eea66}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-secondary{background:linear-gradient(135deg,#f3f4f6,#e5e7eb);color:#374151;box-shadow:0 2px 8px #0000001a}.btn-secondary:hover{background:linear-gradient(135deg,#e5e7eb,#d1d5db);transform:translateY(-2px);box-shadow:0 4px 15px #00000026}.btn-icon{font-size:1.25rem}.generating-section{text-align:center;padding:4rem 3rem}.loading-spinner{width:80px;height:80px;border:6px solid rgba(102,126,234,.2);border-top-color:#667eea;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 2rem}.generating-section h2{font-size:2.25rem;font-weight:700;color:#1f2937;margin-bottom:1rem}.generating-section p{font-size:1.1rem;color:#6b7280;margin-bottom:2rem}.progress-bar-container{width:100%;height:12px;background:#e5e7eb;border-radius:6px;overflow:hidden;margin:2rem 0 1rem}.progress-bar{height:100%;background:linear-gradient(90deg,#667eea,#764ba2);border-radius:6px;transition:width .5s ease;position:relative;overflow:hidden}.progress-bar:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);animation:shimmer 2s infinite}@keyframes shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}.progress-text{font-size:1.5rem;font-weight:700;color:#667eea;margin-bottom:2rem}.generating-status{display:flex;flex-direction:column;gap:1rem;max-width:400px;margin:0 auto}.status-item{padding:1rem 1.5rem;background:#f3f4f6;border-radius:12px;display:flex;align-items:center;gap:1rem;color:#9ca3af;font-weight:600;transition:all .3s ease}.status-item.active{background:linear-gradient(135deg,#fef3c7,#fde68a);color:#78350f;box-shadow:0 4px 15px #fbbf244d}.status-item.completed{background:linear-gradient(135deg,#d1fae5,#a7f3d0);color:#065f46}.success-section{text-align:center;padding:3rem}.success-icon{font-size:5rem;margin-bottom:1.5rem;animation:bounceIn .8s ease}@keyframes bounceIn{0%{transform:scale(0);opacity:0}50%{transform:scale(1.1)}to{transform:scale(1);opacity:1}}.success-section h2{font-size:2.5rem;font-weight:700;color:#1f2937;margin-bottom:.5rem}.success-section>p{font-size:1.1rem;color:#6b7280;margin-bottom:2rem}.quiz-summary-card{background:linear-gradient(135deg,#eff6ff,#dbeafe);padding:2rem;border-radius:20px;margin:2rem 0;border:2px solid #93c5fd}.quiz-summary-card h3{font-size:1.75rem;font-weight:700;color:#1e40af;margin-bottom:1.5rem}.quiz-details{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}.detail-item{display:flex;justify-content:space-between;padding:.75rem 1rem;background:#fff;border-radius:10px;border:1px solid #bfdbfe}.detail-label{font-weight:600;color:#1e40af}.detail-value{font-weight:700;color:#1e3a8a}.detail-value.code{font-family:Monaco,Courier New,monospace;font-size:.9rem;background:#f1f5f9;padding:.25rem .5rem;border-radius:4px}.quiz-list-section{margin-top:3rem;padding-top:3rem;border-top:2px solid #e5e7eb}.quiz-list-header{text-align:center;margin-bottom:2rem}.quiz-list-header h3{font-size:1.75rem;font-weight:700;color:#1f2937;margin-bottom:.5rem}.quiz-list-header p{color:#6b7280;font-size:1rem}.quiz-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.5rem}.error-message{padding:1.25rem 1.5rem;background:linear-gradient(135deg,#fee2e2,#fecaca);border-radius:12px;border:2px solid #f87171;color:#991b1b;font-weight:600;margin-bottom:2rem;display:flex;align-items:center;gap:1rem;animation:shake .5s ease}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-10px)}75%{transform:translate(10px)}}.error-icon{font-size:1.5rem}@media(max-width:1024px){.upload-options{grid-template-columns:1fr}.divider{margin:2rem 0}.divider span{transform:rotate(90deg)}.time-summary{grid-template-columns:1fr}}@media(max-width:768px){.custom-quiz-creator{padding:1rem}.creator-header h1{font-size:2rem}.subtitle{font-size:1rem}.progress-steps{flex-direction:column;gap:1rem}.step-line{width:4px;height:40px;margin:0}.upload-section,.settings-section{padding:2rem 1.5rem}.difficulty-options,.form-row,.quiz-details{grid-template-columns:1fr}.action-buttons{flex-direction:column}.btn{width:100%;justify-content:center}}.btn:focus,.form-input:focus,.content-textarea:focus,.difficulty-card:focus{outline:3px solid #667eea;outline-offset:2px}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.create-quiz-page{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);padding:2rem}.page-nav{display:flex;justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto 2rem}.nav-button{padding:.75rem 1.5rem;background:#fff;border:none;border-radius:.5rem;font-weight:600;cursor:pointer;transition:all .2s;box-shadow:0 2px 4px #0000001a}.nav-button:hover{transform:translateY(-2px);box-shadow:0 4px 8px #00000026}.tutorial-button{background:#3b82f6;color:#fff}.page-content{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 300px;gap:2rem}.tips-sidebar{background:#fff;border-radius:1rem;padding:1.5rem;height:fit-content;box-shadow:0 4px 6px #0000001a;position:sticky;top:2rem}.tips-sidebar h3{font-size:1.25rem;color:#1f2937;margin-bottom:1rem}.tips-sidebar ul{list-style:none;padding:0}.tips-sidebar>ul>li{margin-bottom:1rem;padding-left:1.5rem;position:relative}.tips-sidebar>ul>li:before{content:"→";position:absolute;left:0;color:#3b82f6;font-weight:700}.tips-sidebar strong{color:#3b82f6;display:block;margin-bottom:.25rem}.tips-sidebar ul ul{margin-top:.5rem;margin-left:1rem}.tips-sidebar ul ul li{font-size:.875rem;color:#6b7280;margin-bottom:.25rem}.example-section{margin-top:1.5rem;padding-top:1.5rem;border-top:2px solid #e5e7eb}.example-section h4{font-size:1rem;color:#1f2937;margin-bottom:.75rem}.code-example{background:#f9fafb;border:1px solid #e5e7eb;border-radius:.5rem;padding:1rem;font-size:.75rem;line-height:1.5;overflow-x:auto;color:#374151;font-family:Courier New,monospace}.tutorial-modal-overlay{position:fixed;inset:0;background:#000000bf;display:flex;align-items:center;justify-content:center;z-index:1000;padding:2rem}.tutorial-modal{background:#fff;border-radius:1rem;max-width:600px;width:100%;padding:2rem;position:relative;box-shadow:0 20px 25px #0000004d}.close-button{position:absolute;top:1rem;right:1rem;background:none;border:none;font-size:1.5rem;cursor:pointer;color:#9ca3af;width:2rem;height:2rem;display:flex;align-items:center;justify-content:center;border-radius:.25rem;transition:all .2s}.close-button:hover{background:#f3f4f6;color:#1f2937}.tutorial-content{text-align:center}.tutorial-progress{display:flex;justify-content:center;gap:.5rem;margin-bottom:2rem}.progress-dot{width:.75rem;height:.75rem;border-radius:50%;background:#e5e7eb;cursor:pointer;transition:all .3s}.progress-dot.active{background:#3b82f6;transform:scale(1.3)}.progress-dot.completed{background:#10b981}.tutorial-content h2{font-size:1.75rem;color:#1f2937;margin-bottom:1rem}.tutorial-content p{font-size:1.125rem;color:#6b7280;line-height:1.6;margin-bottom:2rem}.tutorial-image-placeholder{background:#f9fafb;border:2px dashed #e5e7eb;border-radius:.75rem;padding:3rem;margin-bottom:2rem;display:flex;flex-direction:column;align-items:center;justify-content:center}.tutorial-image-placeholder span{font-size:4rem;margin-bottom:1rem}.tutorial-image-placeholder p{color:#9ca3af;font-size:1rem;margin:0}.tutorial-buttons{display:flex;gap:1rem;justify-content:center}.btn{padding:.75rem 2rem;font-size:1rem;font-weight:600;border:none;border-radius:.5rem;cursor:pointer;transition:all .2s}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:#3b82f6;color:#fff}.btn-primary:hover:not(:disabled){background:#2563eb}.btn-secondary{background:#fff;color:#374151;border:2px solid #e5e7eb}.btn-secondary:hover:not(:disabled){background:#f9fafb}@media(max-width:1024px){.page-content{grid-template-columns:1fr}.tips-sidebar{position:static;order:-1}}@media(max-width:768px){.create-quiz-page{padding:1rem}.page-nav{flex-direction:column;gap:.75rem}.nav-button{width:100%}.tutorial-modal{padding:1.5rem}.tutorial-content h2{font-size:1.5rem}.tutorial-content p{font-size:1rem}.tutorial-buttons{flex-direction:column}.btn{width:100%}}.auth-container{min-height:100vh;background:linear-gradient(135deg,#f5f7fa,#c3cfe2);display:flex;align-items:center;justify-content:center;padding:2rem}.auth-content{display:grid;grid-template-columns:1fr 1fr;max-width:1400px;width:100%;background:#fff;border-radius:32px;overflow:hidden;box-shadow:0 25px 80px #00000026}.auth-branding{background:linear-gradient(135deg,#667eea,#764ba2);padding:4rem;color:#fff;display:flex;align-items:center;position:relative;overflow:hidden}.auth-branding:before{content:"";position:absolute;inset:0;background:linear-gradient(45deg,rgba(255,255,255,.1) 0%,transparent 100%);pointer-events:none}.branding-content{position:relative;z-index:1}.brand-icon{font-size:5rem;margin-bottom:2rem;animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-15px)}}.brand-title{font-size:3rem;font-weight:900;margin:0 0 1rem;line-height:1.2;text-shadow:0 2px 10px rgba(0,0,0,.2)}.brand-subtitle{font-size:1.5rem;font-weight:500;margin:0 0 4rem;opacity:.95}.brand-features{display:flex;flex-direction:column;gap:2rem}.brand-feature{display:flex;align-items:flex-start;gap:1.5rem;background:#ffffff1a;padding:1.5rem;border-radius:16px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:2px solid rgba(255,255,255,.2)}.feature-icon{font-size:2.5rem;flex-shrink:0}.feature-text h3{font-size:1.25rem;font-weight:800;margin:0 0 .5rem}.feature-text p{font-size:1rem;margin:0;opacity:.9}.auth-form-container{padding:4rem;display:flex;align-items:center}.auth-form-wrapper{width:100%;max-width:480px;margin:0 auto}.auth-header{text-align:center;margin-bottom:2.5rem}.auth-title{font-size:2.25rem;font-weight:900;color:#1f2937;margin:0 0 .75rem}.auth-description{font-size:1.125rem;color:#6b7280;margin:0;font-weight:500}.error-alert{display:flex;align-items:center;gap:.75rem;background:linear-gradient(135deg,#fee2e2,#fecaca);border:2px solid #ef4444;border-radius:12px;padding:1rem 1.25rem;margin-bottom:1.5rem;animation:slideDown .4s ease}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.error-icon{font-size:1.5rem;flex-shrink:0}.error-text{flex:1;font-weight:700;color:#991b1b;font-size:.9375rem}.oauth-buttons{display:flex;flex-direction:column;gap:1rem;margin-bottom:2rem}.oauth-button{display:flex;align-items:center;justify-content:center;gap:.75rem;padding:1rem 1.5rem;border:2px solid #e5e7eb;border-radius:12px;background:#fff;cursor:pointer;transition:all .3s ease;font-weight:700;font-size:.9375rem}.oauth-button:hover{transform:translateY(-2px);box-shadow:0 6px 20px #0000001a}.oauth-button.google{border-color:#4285f4;color:#4285f4}.oauth-button.google:hover{background:#4285f4;color:#fff}.oauth-button.outlook{border-color:#0078d4;color:#0078d4}.oauth-button.outlook:hover{background:#0078d4;color:#fff}.oauth-icon{width:24px;height:24px;flex-shrink:0}.divider{display:flex;align-items:center;gap:1rem;margin-bottom:2rem}.divider-line{flex:1;height:2px;background:linear-gradient(90deg,transparent 0%,#e5e7eb 50%,transparent 100%)}.divider-text{font-weight:700;color:#9ca3af;font-size:.875rem}.auth-form{display:flex;flex-direction:column;gap:1.25rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-label{display:flex;align-items:center;gap:.5rem;font-weight:700;color:#1f2937;font-size:.9375rem}.label-icon{font-size:1.125rem}.form-input{padding:.875rem 1.125rem;border:2px solid #e5e7eb;border-radius:10px;font-size:.9375rem;font-weight:500;transition:all .3s ease;background:#fff}.form-input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.password-input-wrapper{position:relative}.password-toggle{position:absolute;right:1rem;top:50%;transform:translateY(-50%);background:none;border:none;font-size:1.25rem;cursor:pointer;padding:.25rem;line-height:1;opacity:.6;transition:opacity .2s}.password-toggle:hover{opacity:1}.password-strength{display:flex;align-items:center;gap:.75rem;margin-top:.5rem}.strength-bar{flex:1;height:6px;background:#e5e7eb;border-radius:3px;overflow:hidden}.strength-fill{height:100%;border-radius:3px;transition:all .3s ease}.strength-bar.strength-weak .strength-fill{width:33%;background:#ef4444}.strength-bar.strength-medium .strength-fill{width:66%;background:#f59e0b}.strength-bar.strength-strong .strength-fill{width:100%;background:#10b981}.strength-text{font-size:.8125rem;font-weight:700;white-space:nowrap}.strength-text.strength-weak{color:#ef4444}.strength-text.strength-medium{color:#f59e0b}.strength-text.strength-strong{color:#10b981}.form-options{display:flex;justify-content:space-between;align-items:center;margin-top:.5rem}.checkbox-label{display:flex;align-items:center;gap:.5rem;cursor:pointer}.checkbox-label.terms{align-items:flex-start}.checkbox-input{width:18px;height:18px;cursor:pointer;accent-color:#667eea;flex-shrink:0}.checkbox-text{font-size:.875rem;color:#6b7280;font-weight:600}.forgot-link{font-size:.875rem;color:#667eea;font-weight:700;text-decoration:none}.forgot-link:hover{text-decoration:underline}.link-inline{color:#667eea;font-weight:700;text-decoration:none}.link-inline:hover{text-decoration:underline}.submit-button{margin-top:.5rem;padding:1.125rem 2rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:12px;font-weight:900;font-size:1rem;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:.75rem;box-shadow:0 6px 20px #667eea4d}.submit-button:hover:not(:disabled){transform:translateY(-3px);box-shadow:0 10px 30px #667eea66}.submit-button:disabled{opacity:.6;cursor:not-allowed}.button-spinner{width:18px;height:18px;border:3px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}.button-icon{font-size:1.25rem}.auth-footer{margin-top:2rem;text-align:center}.footer-text{font-size:.9375rem;color:#6b7280;margin:0;font-weight:600}.footer-link{color:#667eea;font-weight:800;text-decoration:none}.footer-link:hover{text-decoration:underline}@media(max-width:1024px){.auth-content{grid-template-columns:1fr}.auth-branding{display:none}.auth-form-container{padding:3rem 2rem}}@media(max-width:640px){.auth-container{padding:1rem}.auth-form-container{padding:2rem 1.5rem}.auth-title{font-size:1.875rem}.form-options{flex-direction:column;align-items:flex-start;gap:.75rem}}:root{--primary: #6366f1;--primary-dark: #4f46e5;--secondary: #10b981;--accent: #f59e0b;--danger: #ef4444;--bg-primary: #f8fafc;--bg-card: #ffffff;--bg-hover: #f1f5f9;--text-primary: #0f172a;--text-secondary: #64748b;--text-muted: #94a3b8;--border: #e2e8f0;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px}.myquizzes-professional{min-height:100vh;background:linear-gradient(135deg,#f8fafc,#e0e7ff);padding:2rem;font-family:Outfit,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.page-header{margin-bottom:2.5rem;animation:fadeInDown .6s ease-out}.header-content{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1.5rem}.header-text h1{font-family:Space Grotesk,sans-serif;font-size:2.5rem;font-weight:700;color:var(--text-primary);margin:0 0 .5rem;letter-spacing:-.02em}.header-text p{color:var(--text-secondary);font-size:1.1rem;margin:0}.create-quiz-button{display:inline-flex;align-items:center;gap:.5rem;padding:.875rem 1.75rem;background:linear-gradient(135deg,#10b981,#059669);color:#fff;border:none;border-radius:var(--radius-md);font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:var(--shadow-md)}.create-quiz-button:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);background:linear-gradient(135deg,#059669,#047857)}.create-quiz-button .button-icon{font-size:1.25rem;font-weight:700}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin-bottom:2.5rem;animation:fadeInUp .6s ease-out .1s backwards}.stat-card{background:var(--bg-card);border-radius:var(--radius-lg);padding:1.75rem;display:flex;align-items:center;gap:1.25rem;box-shadow:var(--shadow-md);transition:all .3s ease;border:1px solid var(--border);position:relative;overflow:hidden}.stat-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary),var(--secondary));opacity:0;transition:opacity .3s ease}.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-xl)}.stat-card:hover:before{opacity:1}.stat-icon{font-size:2.5rem;width:64px;height:64px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md);background:linear-gradient(135deg,#f1f5f9,#e2e8f0);flex-shrink:0}.stat-total .stat-icon{background:linear-gradient(135deg,#dbeafe,#bfdbfe)}.stat-custom .stat-icon{background:linear-gradient(135deg,#fce7f3,#fbcfe8)}.stat-adaptive .stat-icon{background:linear-gradient(135deg,#ddd6fe,#c4b5fd)}.stat-attempts .stat-icon{background:linear-gradient(135deg,#fef3c7,#fde68a)}.stat-value{font-family:Space Grotesk,sans-serif;font-size:2.25rem;font-weight:700;color:var(--text-primary);line-height:1;margin-bottom:.5rem}.stat-label{color:var(--text-secondary);font-size:.875rem;font-weight:500;text-transform:uppercase;letter-spacing:.05em}.filter-tabs{display:flex;gap:.75rem;margin-bottom:2rem;background:var(--bg-card);padding:.5rem;border-radius:var(--radius-md);box-shadow:var(--shadow-sm);animation:fadeInUp .6s ease-out .2s backwards}.tab{flex:1;padding:.875rem 1.5rem;border:none;background:transparent;color:var(--text-secondary);font-size:1rem;font-weight:600;border-radius:var(--radius-sm);cursor:pointer;transition:all .3s ease;position:relative}.tab:hover{background:var(--bg-hover);color:var(--text-primary)}.tab.active{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;box-shadow:var(--shadow-md)}.quizzes-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:1.5rem;animation:fadeInUp .6s ease-out .3s backwards}.quiz-card{background:var(--bg-card);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);transition:all .4s cubic-bezier(.4,0,.2,1);border:1px solid var(--border);display:flex;flex-direction:column;position:relative}.quiz-card:before{content:"";position:absolute;top:0;left:0;right:0;height:5px;background:linear-gradient(90deg,#6366f1,#8b5cf6);opacity:0;transition:opacity .3s ease}.quiz-card.custom:before{background:linear-gradient(90deg,#ec4899,#f472b6)}.quiz-card.adaptive:before{background:linear-gradient(90deg,#8b5cf6,#a78bfa)}.quiz-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-xl)}.quiz-card:hover:before{opacity:1}.quiz-card-header{padding:1.5rem;display:flex;align-items:center;justify-content:space-between;background:linear-gradient(135deg,#f8fafc,#f1f5f9);border-bottom:1px solid var(--border)}.quiz-icon{font-size:2rem;width:56px;height:56px;display:flex;align-items:center;justify-content:center;background:#fff;border-radius:var(--radius-md);box-shadow:var(--shadow-sm)}.quiz-type-badge{padding:.375rem .875rem;border-radius:20px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.quiz-type-badge[data-type=custom]{background:linear-gradient(135deg,#fce7f3,#fbcfe8);color:#be185d}.quiz-type-badge[data-type=adaptive]{background:linear-gradient(135deg,#ede9fe,#ddd6fe);color:#6d28d9}.quiz-card-content{padding:1.5rem;flex:1;display:flex;flex-direction:column;gap:1rem}.quiz-title{font-family:Space Grotesk,sans-serif;font-size:1.25rem;font-weight:700;color:var(--text-primary);margin:0;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.quiz-meta{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center}.difficulty-badge{padding:.25rem .75rem;border-radius:12px;color:#fff;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.meta-item{color:var(--text-secondary);font-size:.875rem;font-weight:500}.meta-item:before{content:"•";margin-right:.5rem;color:var(--text-muted)}.meta-item:first-of-type:before{content:"";margin:0}.adaptive-stats{background:linear-gradient(135deg,#f8fafc,#f1f5f9);border-radius:var(--radius-md);padding:1rem;display:flex;flex-direction:column;gap:.75rem}.adaptive-stat{display:flex;align-items:center;justify-content:space-between;gap:.75rem}.adaptive-stat .stat-label{color:var(--text-secondary);font-size:.813rem;font-weight:600;flex-shrink:0}.adaptive-stat .stat-value{color:var(--text-primary);font-family:Space Grotesk,sans-serif;font-size:.938rem;font-weight:700;flex-shrink:0}.skill-bar{flex:1;height:8px;background:#e2e8f0;border-radius:4px;overflow:hidden}.skill-fill{height:100%;background:linear-gradient(90deg,#8b5cf6,#a78bfa);transition:width .6s cubic-bezier(.4,0,.2,1);border-radius:4px}.performance-stats{background:linear-gradient(135deg,#f8fafc,#f1f5f9);border-radius:var(--radius-md);padding:1rem;margin-top:auto}.stat-row{display:flex;justify-content:space-between;align-items:center;padding:.5rem 0}.stat-row:not(:last-child){border-bottom:1px solid var(--border)}.stat-row .stat-label{color:var(--text-secondary);font-size:.813rem;font-weight:600}.stat-row .stat-value{color:var(--text-primary);font-family:Space Grotesk,sans-serif;font-size:.938rem;font-weight:700}.stat-row .stat-value.score{color:var(--secondary)}.not-started{display:flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem;color:var(--text-secondary);font-size:.875rem;font-weight:600}.status-icon{font-size:1.25rem}.quiz-card-actions{padding:1rem 1.5rem;display:flex;gap:.75rem;border-top:1px solid var(--border);background:linear-gradient(135deg,#fafbfc,#f8fafc)}.action-button{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1rem;border:none;border-radius:var(--radius-sm);font-size:.938rem;font-weight:600;cursor:pointer;transition:all .3s ease;font-family:Outfit,sans-serif}.action-button.details{background:linear-gradient(135deg,#f1f5f9,#e2e8f0);color:var(--text-primary);border:1px solid var(--border)}.action-button.details:hover{background:linear-gradient(135deg,#e2e8f0,#cbd5e1);transform:translateY(-2px);box-shadow:var(--shadow-md)}.action-button.retake{background:linear-gradient(135deg,#fef3c7,#fde68a);color:#92400e;border:1px solid #fcd34d}.action-button.retake:hover{background:linear-gradient(135deg,#fde68a,#fcd34d);transform:translateY(-2px);box-shadow:var(--shadow-md)}.action-button.start{background:linear-gradient(135deg,#6366f1,#4f46e5);color:#fff}.action-button.start:hover{background:linear-gradient(135deg,#4f46e5,#4338ca);transform:translateY(-2px);box-shadow:var(--shadow-md)}.action-button .button-icon{font-size:1rem}.modal-overlay{position:fixed;inset:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;padding:2rem;z-index:1000;animation:fadeIn .3s ease-out}.modal-content{background:var(--bg-card);border-radius:var(--radius-xl);max-width:600px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:0 25px 50px -12px #00000040;animation:slideUp .4s cubic-bezier(.4,0,.2,1)}.modal-header{padding:2rem;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;background:linear-gradient(135deg,#f8fafc,#f1f5f9)}.modal-header h2{font-family:Space Grotesk,sans-serif;font-size:1.75rem;font-weight:700;color:var(--text-primary);margin:0}.close-button{width:36px;height:36px;border:none;background:#fff;border-radius:50%;font-size:1.5rem;line-height:1;cursor:pointer;transition:all .3s ease;color:var(--text-secondary);box-shadow:var(--shadow-sm)}.close-button:hover{background:var(--danger);color:#fff;transform:rotate(90deg);box-shadow:var(--shadow-md)}.modal-body{padding:2rem}.detail-section{margin-bottom:2rem}.detail-section:last-child{margin-bottom:0}.detail-section h3{font-family:Space Grotesk,sans-serif;font-size:1.25rem;font-weight:700;color:var(--text-primary);margin:0 0 1rem}.detail-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}.detail-item{background:linear-gradient(135deg,#f8fafc,#f1f5f9);padding:1rem;border-radius:var(--radius-md);display:flex;flex-direction:column;gap:.5rem;border:1px solid var(--border)}.detail-label{color:var(--text-secondary);font-size:.813rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.detail-value{color:var(--text-primary);font-family:Space Grotesk,sans-serif;font-size:1.125rem;font-weight:700}.detail-value.score-large{color:var(--secondary);font-size:1.5rem}.no-attempts{color:var(--text-secondary);font-size:.938rem;line-height:1.6;padding:1.5rem;background:linear-gradient(135deg,#f8fafc,#f1f5f9);border-radius:var(--radius-md);border:1px dashed var(--border);text-align:center}.modal-footer{padding:1.5rem 2rem;border-top:1px solid var(--border);display:flex;gap:1rem;background:linear-gradient(135deg,#fafbfc,#f8fafc)}.modal-button{flex:1;padding:.875rem 1.5rem;border:none;border-radius:var(--radius-md);font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;font-family:Outfit,sans-serif}.modal-button.secondary{background:linear-gradient(135deg,#f1f5f9,#e2e8f0);color:var(--text-primary);border:1px solid var(--border)}.modal-button.secondary:hover{background:linear-gradient(135deg,#e2e8f0,#cbd5e1);transform:translateY(-2px);box-shadow:var(--shadow-md)}.modal-button.primary{background:linear-gradient(135deg,#6366f1,#4f46e5);color:#fff}.modal-button.primary:hover{background:linear-gradient(135deg,#4f46e5,#4338ca);transform:translateY(-2px);box-shadow:var(--shadow-md)}.empty-state{text-align:center;padding:4rem 2rem;background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);animation:fadeInUp .6s ease-out .3s backwards}.empty-icon{font-size:4rem;margin-bottom:1.5rem;animation:float 3s ease-in-out infinite}.empty-state h3{font-family:Space Grotesk,sans-serif;font-size:1.5rem;font-weight:700;color:var(--text-primary);margin:0 0 .75rem}.empty-state p{color:var(--text-secondary);font-size:1.063rem;line-height:1.6;margin:0 0 2rem}.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;gap:1.5rem}.spinner{width:60px;height:60px;border:4px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite}.loading-state p{color:var(--text-secondary);font-size:1.063rem;font-weight:600}.error-state{text-align:center;padding:4rem 2rem;background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}.error-icon{font-size:4rem;margin-bottom:1.5rem}.error-state h3{font-family:Space Grotesk,sans-serif;font-size:1.5rem;font-weight:700;color:var(--text-primary);margin:0 0 .75rem}.error-state p{color:var(--text-secondary);font-size:1.063rem;line-height:1.6;margin:0 0 2rem}.retry-button{padding:.875rem 1.75rem;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;border:none;border-radius:var(--radius-md);font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:var(--shadow-md)}.retry-button:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-30px)}to{opacity:1;transform:translateY(0)}}@keyframes slideUp{0%{opacity:0;transform:translateY(50px)}to{opacity:1;transform:translateY(0)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@media(max-width:768px){.myquizzes-professional{padding:1rem}.header-content{flex-direction:column;align-items:stretch}.header-text h1{font-size:2rem}.stats-grid{grid-template-columns:repeat(2,1fr)}.filter-tabs{flex-direction:column}.tab{text-align:left}.quizzes-grid,.detail-grid{grid-template-columns:1fr}.modal-content{margin:1rem}.modal-footer{flex-direction:column}}@media(max-width:480px){.stats-grid{grid-template-columns:1fr}.quiz-card-actions{flex-direction:column}}.analytics-professional{font-family:Outfit,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;max-width:1400px;margin:0 auto;padding:32px;min-height:100vh;background:linear-gradient(135deg,#f5f7fa,#e8edf5);animation:fadeIn .6s ease-out}.spinner{width:50px;height:50px;border:4px solid #e5e7eb;border-top-color:#6366f1;border-radius:50%;animation:spin 1s linear infinite}.time-range-filter{display:flex;gap:8px;background:#fff;padding:6px;border-radius:12px;box-shadow:0 2px 8px #0000000d}.filter-button{padding:10px 20px;border:none;background:transparent;color:#6b7280;font-size:14px;font-weight:600;border-radius:8px;cursor:pointer;transition:all .3s ease;font-family:Outfit,sans-serif}.filter-button:hover{background:#f3f4f6;color:#374151}.filter-button.active{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;box-shadow:0 4px 12px #6366f14d}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;margin-bottom:32px;animation:fadeInUp .6s ease-out .1s both}.stat-card{background:#fff;border-radius:20px;padding:28px;display:flex;align-items:center;gap:20px;box-shadow:0 4px 20px #00000014;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.stat-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,#667eea,#764ba2);transition:height .3s ease}.stat-card:hover{transform:translateY(-4px);box-shadow:0 8px 30px #0000001f}.stat-card:hover:before{height:6px}.stat-card.stat-total:before{background:linear-gradient(90deg,#6366f1,#8b5cf6)}.stat-card.stat-attempts:before{background:linear-gradient(90deg,#8b5cf6,#ec4899)}.stat-card.stat-score:before{background:linear-gradient(90deg,#10b981,#059669)}.stat-card.stat-streak:before{background:linear-gradient(90deg,#f59e0b,#ef4444)}.stat-icon-wrapper{width:64px;height:64px;border-radius:16px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.stat-total .stat-icon-wrapper{background:linear-gradient(135deg,#dbeafe,#bfdbfe)}.stat-attempts .stat-icon-wrapper{background:linear-gradient(135deg,#f3e8ff,#e9d5ff)}.stat-score .stat-icon-wrapper{background:linear-gradient(135deg,#d1fae5,#a7f3d0)}.stat-streak .stat-icon-wrapper{background:linear-gradient(135deg,#fed7aa,#fde68a)}.stat-icon{font-size:32px}.stat-label{font-size:14px;color:#6b7280;font-weight:500;margin-bottom:8px}.stat-value{font-size:36px;font-weight:700;color:#111827;font-family:Space Grotesk,sans-serif;margin-bottom:4px}.stat-change{font-size:13px;font-weight:600;display:flex;align-items:center;gap:4px}.stat-change.positive{color:#10b981}.stat-change.neutral{color:#6b7280}.change-icon{font-size:14px}.charts-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(500px,1fr));gap:24px;margin-bottom:32px;animation:fadeInUp .6s ease-out .2s both}.chart-card{background:#fff;border-radius:20px;padding:28px;box-shadow:0 4px 20px #00000014;transition:all .3s ease}.chart-card:hover{box-shadow:0 8px 30px #0000001f}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.card-title{font-size:20px;font-weight:700;color:#111827;display:flex;align-items:center;gap:10px;font-family:Space Grotesk,sans-serif}.title-icon{font-size:24px}.card-badge{background:linear-gradient(135deg,#f3f4f6,#e5e7eb);color:#6b7280;padding:6px 14px;border-radius:20px;font-size:12px;font-weight:600}.progress-chart{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;height:240px;padding:20px 0}.progress-bar-wrapper{flex:1;display:flex;flex-direction:column;align-items:center;gap:12px}.progress-bar-container{width:100%;height:200px;background:linear-gradient(180deg,#f9fafb,#f3f4f6);border-radius:12px;display:flex;align-items:flex-end;padding:8px;position:relative;overflow:hidden}.progress-bar-fill{width:100%;border-radius:8px;display:flex;align-items:flex-start;justify-content:center;padding-top:8px;transition:height .8s cubic-bezier(.4,0,.2,1);position:relative;animation:growHeight 1s ease-out}@keyframes growHeight{0%{height:0}}.progress-bar-value{color:#fff;font-weight:700;font-size:13px;text-shadow:0 1px 2px rgba(0,0,0,.2)}.progress-bar-label{font-size:12px;color:#6b7280;font-weight:600;text-align:center}.weekly-chart{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;height:240px;padding:20px 0}.weekly-bar-wrapper{flex:1;display:flex;flex-direction:column;align-items:center;gap:8px}.weekly-bar-container{width:100%;height:180px;background:linear-gradient(180deg,#f9fafb,#f3f4f6);border-radius:12px;display:flex;align-items:flex-end;padding:8px;position:relative}.weekly-bar-fill{width:100%;border-radius:8px;display:flex;align-items:flex-start;justify-content:center;padding-top:6px;transition:height .8s cubic-bezier(.4,0,.2,1);animation:growHeight 1s ease-out}.weekly-bar-count{color:#fff;font-weight:700;font-size:13px;text-shadow:0 1px 2px rgba(0,0,0,.2)}.weekly-bar-label{font-size:12px;color:#6b7280;font-weight:700}.weekly-bar-score{font-size:11px;color:#10b981;font-weight:600}.content-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(500px,1fr));gap:24px;margin-bottom:32px;animation:fadeInUp .6s ease-out .3s both}.content-card{background:#fff;border-radius:20px;padding:28px;box-shadow:0 4px 20px #00000014;transition:all .3s ease}.content-card:hover{box-shadow:0 8px 30px #0000001f}.card-content{max-height:400px;overflow-y:auto}.card-content::-webkit-scrollbar{width:6px}.card-content::-webkit-scrollbar-track{background:#f3f4f6;border-radius:10px}.card-content::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:10px}.card-content::-webkit-scrollbar-thumb:hover{background:#9ca3af}.topics-list{display:flex;flex-direction:column;gap:16px}.topic-item{display:flex;align-items:center;gap:16px;padding:20px;background:linear-gradient(135deg,#f9fafb,#f3f4f6);border-radius:16px;transition:all .3s ease;animation:slideInRight .5s ease-out}@keyframes slideInRight{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}.topic-item:hover{transform:translate(4px);box-shadow:0 4px 12px #00000014}.topic-rank{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:16px;flex-shrink:0;box-shadow:0 4px 12px #00000026}.topic-info{flex:1}.topic-name{font-size:16px;font-weight:600;color:#111827;margin-bottom:4px}.topic-meta{display:flex;gap:12px}.topic-attempts{font-size:13px;color:#6b7280;font-weight:500}.topic-score-wrapper{flex-shrink:0}.topic-score{padding:10px 18px;border-radius:12px;color:#fff;font-weight:700;font-size:16px;box-shadow:0 4px 12px #00000026}.activity-list{display:flex;flex-direction:column;gap:16px}.activity-item{display:flex;align-items:center;gap:16px;padding:20px;background:linear-gradient(135deg,#f9fafb,#f3f4f6);border-radius:16px;transition:all .3s ease;animation:slideInLeft .5s ease-out}@keyframes slideInLeft{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}.activity-item:hover{transform:translate(-4px);box-shadow:0 4px 12px #00000014}.activity-date{background:#fff;padding:8px 12px;border-radius:10px;font-size:12px;font-weight:600;color:#6b7280;flex-shrink:0;box-shadow:0 2px 4px #0000000d}.activity-info{flex:1}.activity-title{font-size:15px;font-weight:600;color:#111827;margin-bottom:4px}.topic-tag{display:inline-block;background:linear-gradient(135deg,#dbeafe,#bfdbfe);color:#1e40af;padding:4px 10px;border-radius:8px;font-size:12px;font-weight:600}.activity-score{padding:10px 18px;border-radius:12px;color:#fff;font-weight:700;font-size:16px;flex-shrink:0;box-shadow:0 4px 12px #00000026}.insights-section{animation:fadeInUp .6s ease-out .4s both}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.section-title{font-size:28px;font-weight:700;color:#111827;display:flex;align-items:center;gap:12px;font-family:Space Grotesk,sans-serif}.section-badge{background:linear-gradient(135deg,#fef3c7,#fde68a);color:#92400e;padding:8px 16px;border-radius:20px;font-size:13px;font-weight:600}.insights-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}.insight-card{background:#fff;border-radius:20px;padding:28px;display:flex;gap:20px;box-shadow:0 4px 20px #00000014;transition:all .3s ease;position:relative;overflow:hidden;animation:scaleIn .5s ease-out}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.insight-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px}.insight-card.insight-success:before{background:linear-gradient(90deg,#10b981,#059669)}.insight-card.insight-focus:before{background:linear-gradient(90deg,#6366f1,#8b5cf6)}.insight-card.insight-streak:before{background:linear-gradient(90deg,#f59e0b,#ef4444)}.insight-card.insight-strength:before{background:linear-gradient(90deg,#8b5cf6,#ec4899)}.insight-card:hover{transform:translateY(-4px);box-shadow:0 8px 30px #0000001f}.insight-icon-wrapper{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.insight-card.insight-success .insight-icon-wrapper{background:linear-gradient(135deg,#d1fae5,#a7f3d0)}.insight-card.insight-focus .insight-icon-wrapper{background:linear-gradient(135deg,#e0e7ff,#c7d2fe)}.insight-card.insight-streak .insight-icon-wrapper{background:linear-gradient(135deg,#fed7aa,#fdba74)}.insight-card.insight-strength .insight-icon-wrapper{background:linear-gradient(135deg,#f3e8ff,#e9d5ff)}.insight-icon{font-size:28px}.insight-content{flex:1}.insight-title{font-size:17px;font-weight:700;color:#111827;margin:0 0 8px}.insight-text{font-size:14px;color:#6b7280;line-height:1.6;margin:0}@media(max-width:1200px){.charts-row,.content-row{grid-template-columns:1fr}}@media(max-width:768px){.analytics-professional{padding:20px}.header-text h1{font-size:32px}.header-content{flex-direction:column;align-items:flex-start}.stats-grid,.insights-grid{grid-template-columns:1fr}.progress-chart,.weekly-chart{height:180px}.progress-bar-container,.weekly-bar-container{height:140px}}@media(max-width:480px){.header-text h1,.stat-value{font-size:28px}.card-title{font-size:18px}.topic-item,.activity-item{flex-direction:column;align-items:flex-start}}.settings-professional{font-family:Outfit,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;max-width:1200px;margin:0 auto;padding:32px;min-height:100vh;background:linear-gradient(135deg,#f5f7fa,#e8edf5);animation:fadeIn .6s ease-out}.loading-state,.error-state{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;gap:20px}.spinner,.button-spinner{width:20px;height:20px;border:3px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}.spinner{width:50px;height:50px;border-width:4px;border-color:#e5e7eb;border-top-color:#6366f1}.error-icon{font-size:64px;animation:bounce 2s infinite}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.retry-button{padding:12px 28px;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;border:none;border-radius:12px;font-size:15px;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #6366f14d}.retry-button:hover{transform:translateY(-2px);box-shadow:0 6px 20px #6366f166}.page-header{margin-bottom:32px;animation:fadeInDown .6s ease-out}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.header-content{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:24px}.header-text h1{font-family:Space Grotesk,sans-serif;font-size:42px;font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:0 0 8px}.header-text p{font-size:16px;color:#6b7280;margin:0}.save-button{display:flex;align-items:center;gap:10px;padding:14px 28px;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;border:none;border-radius:12px;font-size:15px;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #6366f14d;font-family:Outfit,sans-serif}.save-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #6366f166}.save-button:disabled{opacity:.7;cursor:not-allowed}.save-button.success{background:linear-gradient(135deg,#10b981,#059669);box-shadow:0 4px 12px #10b9814d}.button-icon{font-size:18px}.success-banner{display:flex;align-items:center;gap:12px;padding:16px 24px;background:linear-gradient(135deg,#d1fae5,#a7f3d0);border:2px solid #10b981;border-radius:12px;color:#065f46;font-weight:600;margin-bottom:24px;animation:slideInDown .5s ease-out;box-shadow:0 4px 12px #10b98133}@keyframes slideInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.success-icon{font-size:24px;width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:#fff;border-radius:50%;color:#10b981;font-weight:700}.settings-section{margin-bottom:32px;animation:fadeInUp .6s ease-out both}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.settings-section:nth-child(2){animation-delay:.1s}.settings-section:nth-child(3){animation-delay:.2s}.settings-section:nth-child(4){animation-delay:.3s}.settings-section:nth-child(5){animation-delay:.4s}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.section-title{font-size:24px;font-weight:700;color:#111827;display:flex;align-items:center;gap:12px;font-family:Space Grotesk,sans-serif}.title-icon{font-size:28px}.section-badge{background:linear-gradient(135deg,#e0e7ff,#c7d2fe);color:#4338ca;padding:6px 14px;border-radius:20px;font-size:12px;font-weight:600}.section-header.danger .section-title{color:#dc2626}.section-badge.danger{background:linear-gradient(135deg,#fee2e2,#fecaca);color:#991b1b}.settings-card{background:#fff;border-radius:20px;padding:32px;box-shadow:0 4px 20px #00000014;transition:all .3s ease}.settings-card:hover{box-shadow:0 8px 30px #0000001f}.danger-card{border:2px solid #fee2e2}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}.form-group{display:flex;flex-direction:column;gap:10px}.form-label{font-size:14px;font-weight:600;color:#374151;display:flex;align-items:center;gap:8px}.label-icon{font-size:16px}.form-input,.form-select{padding:14px 16px;border:2px solid #e5e7eb;border-radius:12px;font-size:15px;font-family:Outfit,sans-serif;transition:all .3s ease;background:#fff}.form-input:focus,.form-select:focus{outline:none;border-color:#6366f1;box-shadow:0 0 0 3px #6366f11a}.form-input.disabled{background:#f9fafb;color:#9ca3af;cursor:not-allowed}.form-hint{font-size:13px;color:#6b7280;display:flex;align-items:center;gap:6px;margin:0}.hint-icon{font-size:14px}.auth-provider-badge{display:inline-flex;align-items:center;gap:10px;padding:14px 20px;background:linear-gradient(135deg,#dbeafe,#bfdbfe);border:2px solid #3b82f6;border-radius:12px;color:#1e40af;font-weight:600;font-size:15px}.provider-icon{font-size:20px}.toggles-list{display:flex;flex-direction:column;gap:20px}.toggle-item{display:flex;justify-content:space-between;align-items:center;padding:20px;background:linear-gradient(135deg,#f9fafb,#f3f4f6);border-radius:16px;transition:all .3s ease}.toggle-item:hover{background:linear-gradient(135deg,#f3f4f6,#e5e7eb);transform:translate(4px)}.toggle-info{flex:1}.toggle-header{display:flex;align-items:center;gap:10px;margin-bottom:6px}.toggle-icon{font-size:20px}.toggle-title{font-size:16px;font-weight:600;color:#111827}.toggle-description{font-size:14px;color:#6b7280;margin:0;line-height:1.5}.toggle-switch{position:relative;width:56px;height:32px;flex-shrink:0}.toggle-switch input{opacity:0;width:0;height:0}.toggle-slider{position:absolute;cursor:pointer;inset:0;background:#d1d5db;border-radius:34px;transition:all .3s ease}.toggle-slider:before{position:absolute;content:"";height:24px;width:24px;left:4px;bottom:4px;background:#fff;border-radius:50%;transition:all .3s ease;box-shadow:0 2px 4px #0003}.toggle-switch input:checked+.toggle-slider{background:linear-gradient(135deg,#6366f1,#8b5cf6)}.toggle-switch input:checked+.toggle-slider:before{transform:translate(24px)}.inline-toggle{display:flex;align-items:center;gap:12px}.inline-toggle-label{font-size:14px;font-weight:600;color:#374151}.danger-section{animation-delay:.5s}.danger-items{display:flex;flex-direction:column;gap:20px}.danger-item{display:flex;justify-content:space-between;align-items:center;padding:24px;background:linear-gradient(135deg,#fef2f2,#fee2e2);border:2px solid #fecaca;border-radius:16px;transition:all .3s ease}.danger-item:hover{background:linear-gradient(135deg,#fee2e2,#fecaca);transform:translate(4px)}.danger-info{flex:1}.danger-title{font-size:17px;font-weight:700;color:#dc2626;display:flex;align-items:center;gap:10px;margin-bottom:6px}.danger-icon{font-size:22px}.danger-description{font-size:14px;color:#991b1b;margin:0;line-height:1.5}.danger-button{display:flex;align-items:center;gap:8px;padding:12px 24px;border:none;border-radius:12px;font-size:14px;font-weight:600;cursor:pointer;transition:all .3s ease;font-family:Outfit,sans-serif}.danger-button.secondary{background:linear-gradient(135deg,#f59e0b,#f97316);color:#fff;box-shadow:0 4px 12px #f59e0b4d}.danger-button.primary{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;box-shadow:0 4px 12px #ef44444d}.danger-button:hover{transform:translateY(-2px)}.danger-button.secondary:hover{box-shadow:0 6px 20px #f59e0b66}.danger-button.primary:hover{box-shadow:0 6px 20px #ef444466}.modal-overlay{position:fixed;inset:0;background:#0009;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .3s ease-out;padding:20px}.modal-content{background:#fff;border-radius:24px;padding:40px;max-width:500px;width:100%;box-shadow:0 20px 60px #0000004d;animation:scaleIn .3s ease-out;text-align:center}.modal-content.danger{border:3px solid #fecaca}.modal-icon{width:80px;height:80px;margin:0 auto 24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:40px;animation:bounceIn .6s ease-out}.modal-icon.logout{background:linear-gradient(135deg,#fed7aa,#fdba74);color:#ea580c}.modal-icon.danger{background:linear-gradient(135deg,#fee2e2,#fecaca);color:#dc2626}.modal-title{font-size:28px;font-weight:700;color:#111827;margin:0 0 12px;font-family:Space Grotesk,sans-serif}.modal-text{font-size:16px;color:#6b7280;line-height:1.6;margin:0 0 24px}.modal-text strong{color:#dc2626;font-weight:700}.modal-warning{display:flex;align-items:center;justify-content:center;gap:10px;padding:12px 20px;background:linear-gradient(135deg,#fee2e2,#fecaca);border:2px solid #ef4444;border-radius:12px;color:#991b1b;font-weight:600;font-size:14px;margin-bottom:24px}.warning-icon{font-size:18px}.modal-actions{display:flex;gap:12px;justify-content:center}.modal-button{padding:14px 28px;border:none;border-radius:12px;font-size:15px;font-weight:600;cursor:pointer;transition:all .3s ease;font-family:Outfit,sans-serif}.modal-button.primary{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;box-shadow:0 4px 12px #6366f14d}.modal-button.danger{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;box-shadow:0 4px 12px #ef44444d}.modal-button.secondary{background:#f3f4f6;color:#374151}.modal-button:hover{transform:translateY(-2px)}.modal-button.primary:hover{box-shadow:0 6px 20px #6366f166}.modal-button.danger:hover{box-shadow:0 6px 20px #ef444466}.modal-button.secondary:hover{background:#e5e7eb}@media(max-width:768px){.settings-professional{padding:20px}.header-text h1{font-size:32px}.header-content{flex-direction:column;align-items:flex-start}.save-button{width:100%;justify-content:center}.form-grid{grid-template-columns:1fr}.toggle-item,.danger-item{flex-direction:column;align-items:flex-start;gap:16px}.danger-button{width:100%;justify-content:center}.modal-content{padding:28px}.modal-actions{flex-direction:column-reverse;width:100%}.modal-button{width:100%}}@media(max-width:480px){.header-text h1{font-size:28px}.section-title{font-size:20px}.toggle-item:hover,.danger-item:hover{transform:translate(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}*{transition-property:background,border-color,color,box-shadow,transform;transition-duration:.2s;transition-timing-function:ease}.toggle-slider,.toggle-slider:before{transition:all .3s ease!important}.dashboard-container{display:grid;grid-template-columns:280px 1fr;min-height:100vh;background:linear-gradient(135deg,#f5f7fa,#c3cfe2)}.dashboard-sidebar{background:#fff;border-right:2px solid #e5e7eb;display:flex;flex-direction:column}.sidebar-header{padding:2rem 1.5rem;border-bottom:2px solid #e5e7eb}.logo-section{display:flex;align-items:center;gap:.75rem}.logo-icon{font-size:2rem}.logo-text{font-size:1.25rem;font-weight:900;color:#1f2937}.sidebar-nav{flex:1;padding:1.5rem 1rem;display:flex;flex-direction:column;gap:.5rem}.nav-item{display:flex;align-items:center;gap:.875rem;padding:.875rem 1rem;border-radius:12px;text-decoration:none;color:#6b7280;font-weight:700;font-size:.9375rem;transition:all .2s ease}.nav-item:hover{background:#f9fafb;color:#667eea}.nav-item.active{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;box-shadow:0 4px 15px #667eea4d}.nav-icon{font-size:1.25rem}.nav-text{flex:1}.sidebar-footer{padding:1.5rem 1rem;border-top:2px solid #e5e7eb}.logout-button{display:flex;align-items:center;gap:.875rem;padding:.875rem 1rem;border-radius:12px;background:linear-gradient(135deg,#fee2e2,#fecaca);border:2px solid #ef4444;color:#991b1b;font-weight:700;font-size:.9375rem;cursor:pointer;transition:all .2s ease;width:100%}.logout-button:hover{background:linear-gradient(135deg,#fecaca,#fca5a5);transform:translateY(-2px)}.dashboard-main{overflow-y:auto}.dashboard-header{background:#fff;border-bottom:2px solid #e5e7eb;padding:2rem;position:sticky;top:0;z-index:10;box-shadow:0 2px 10px #0000000d}.header-content{display:flex;justify-content:space-between;align-items:center;gap:2rem}.header-left{flex:1}.header-title{font-size:2rem;font-weight:900;color:#1f2937;margin:0 0 .5rem}.header-subtitle{font-size:1.0625rem;color:#6b7280;margin:0;font-weight:600}.header-right{flex-shrink:0}.user-profile{display:flex;align-items:center;gap:1rem}.user-avatar{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:900;box-shadow:0 4px 15px #667eea4d}.user-info{text-align:left}.user-name{font-size:1rem;font-weight:800;color:#1f2937;margin:0 0 .25rem}.user-email{font-size:.875rem;color:#6b7280;margin:0;font-weight:600}.dashboard-content{padding:2rem;display:flex;flex-direction:column;gap:2rem}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem}.stat-card{background:#fff;border-radius:20px;padding:2rem;display:flex;align-items:center;gap:1.5rem;border:2px solid;transition:all .3s ease;box-shadow:0 4px 15px #0000000d}.stat-card:hover{transform:translateY(-4px);box-shadow:0 8px 25px #0000001a}.stat-card.blue{border-color:#3b82f6;background:linear-gradient(135deg,#eff6ff,#dbeafe)}.stat-card.purple{border-color:#a855f7;background:linear-gradient(135deg,#faf5ff,#e9d5ff)}.stat-card.green{border-color:#10b981;background:linear-gradient(135deg,#ecfdf5,#d1fae5)}.stat-card.orange{border-color:#f59e0b;background:linear-gradient(135deg,#fffbeb,#fef3c7)}.stat-icon{font-size:2.5rem;flex-shrink:0}.stat-content{flex:1}.stat-label{font-size:.875rem;font-weight:700;color:#6b7280;margin:0 0 .5rem;text-transform:uppercase;letter-spacing:.5px}.stat-value{font-size:2rem;font-weight:900;color:#1f2937;margin:0;line-height:1}.subscription-section{animation:fadeIn .5s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.subscription-card{background:#fff;border-radius:24px;padding:2.5rem;border:2px solid #e5e7eb;box-shadow:0 10px 40px #00000014}.subscription-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;flex-wrap:wrap;gap:1rem}.subscription-title-section{display:flex;align-items:center;gap:1rem}.section-title{font-size:1.5rem;font-weight:900;color:#1f2937;margin:0}.plan-badge{padding:.5rem 1rem;border-radius:20px;font-weight:800;font-size:.8125rem;letter-spacing:.5px}.plan-badge-free{background:linear-gradient(135deg,#dbeafe,#bfdbfe);color:#1e40af;border:2px solid #3b82f6}.plan-badge-pro{background:linear-gradient(135deg,#fef3c7,#fde68a);color:#92400e;border:2px solid #f59e0b}.plan-badge-enterprise{background:linear-gradient(135deg,#e9d5ff,#d8b4fe);color:#6b21a8;border:2px solid #a855f7}.upgrade-button{padding:.875rem 1.75rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:12px;font-weight:800;font-size:.9375rem;text-decoration:none;cursor:pointer;transition:all .3s ease;display:inline-block;box-shadow:0 4px 15px #667eea4d}.upgrade-button:hover{transform:translateY(-3px);box-shadow:0 8px 25px #667eea66}.subscription-content{display:flex;flex-direction:column;gap:2rem}.subscription-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:2rem}.subscription-stat{background:linear-gradient(135deg,#f9fafb,#f3f4f6);padding:1.5rem;border-radius:16px;border:2px solid #e5e7eb}.subscription-label{font-size:.875rem;font-weight:700;color:#6b7280;margin:0 0 .5rem;text-transform:uppercase;letter-spacing:.5px}.subscription-value{font-size:1.5rem;font-weight:900;color:#1f2937;margin:0}.capitalize{text-transform:capitalize}.subscription-progress{background:linear-gradient(135deg,#eff6ff,#dbeafe);padding:1.5rem;border-radius:16px;border:2px solid #93c5fd}.progress-bar{height:12px;background:#fff;border-radius:6px;overflow:hidden;margin-bottom:.75rem;border:2px solid #bfdbfe}.progress-fill{height:100%;background:linear-gradient(90deg,#667eea,#764ba2);border-radius:4px;transition:width .5s ease}.progress-text{font-size:.9375rem;font-weight:700;color:#1e40af;margin:0;text-align:center}.subscription-features{background:linear-gradient(135deg,#f0fdf4,#dcfce7);padding:1.5rem;border-radius:16px;border:2px solid #86efac}.features-title{font-weight:800;color:#166534;margin:0 0 1rem;font-size:.9375rem;text-transform:uppercase;letter-spacing:.5px}.features-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.75rem}.feature-item{display:flex;align-items:center;gap:.75rem;font-weight:700;color:#166534;font-size:.9375rem}.feature-icon{width:24px;height:24px;background:#10b981;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:900;flex-shrink:0}.quizzes-section{background:#fff;border-radius:24px;padding:2.5rem;border:2px solid #e5e7eb;box-shadow:0 10px 40px #00000014}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;flex-wrap:wrap;gap:1rem}.create-quiz-button{display:flex;align-items:center;gap:.5rem;padding:.875rem 1.75rem;background:linear-gradient(135deg,#10b981,#059669);color:#fff;border:none;border-radius:12px;font-weight:800;font-size:.9375rem;text-decoration:none;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #10b9814d}.create-quiz-button:hover{transform:translateY(-3px);box-shadow:0 8px 25px #10b98166}.button-icon{font-size:1.125rem}.quizzes-tabs{display:flex;gap:.5rem;margin-bottom:2rem;border-bottom:2px solid #e5e7eb;padding-bottom:.5rem}.tab-button{padding:.75rem 1.5rem;background:transparent;border:none;border-radius:8px 8px 0 0;font-weight:700;color:#6b7280;cursor:pointer;transition:all .2s ease;font-size:.9375rem}.tab-button:hover{background:#f9fafb;color:#667eea}.tab-button.active{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.quizzes-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.5rem}.quiz-card{background:linear-gradient(135deg,#f9fafb,#f3f4f6);border:2px solid #e5e7eb;border-radius:20px;padding:1.75rem;transition:all .3s ease;cursor:pointer}.quiz-card:hover{transform:translateY(-6px);box-shadow:0 12px 30px #0000001a;border-color:#667eea}.quiz-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.quiz-icon{font-size:2rem}.difficulty-badge{padding:.375rem .875rem;border-radius:20px;font-weight:800;font-size:.8125rem;text-transform:uppercase}.difficulty-badge.easy{background:linear-gradient(135deg,#d1fae5,#a7f3d0);color:#065f46;border:2px solid #10b981}.difficulty-badge.medium{background:linear-gradient(135deg,#fef3c7,#fde68a);color:#92400e;border:2px solid #f59e0b}.difficulty-badge.hard{background:linear-gradient(135deg,#fee2e2,#fecaca);color:#991b1b;border:2px solid #ef4444}.quiz-title{font-size:1.25rem;font-weight:800;color:#1f2937;margin:0 0 1rem;line-height:1.4}.quiz-meta{display:flex;flex-direction:column;gap:.625rem;margin-bottom:1.25rem}.quiz-meta-item{display:flex;align-items:center;gap:.5rem;font-size:.9375rem;color:#6b7280;font-weight:600}.meta-icon{font-size:1.125rem}.quiz-actions{display:flex;gap:.75rem}.quiz-action-button{padding:.875rem 1.5rem;border-radius:12px;font-weight:800;font-size:.9375rem;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:.5rem;border:none}.quiz-action-button.primary{flex:1;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;box-shadow:0 4px 15px #667eea4d;justify-content:center}.quiz-action-button.primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.quiz-action-button.secondary{padding:.875rem 1rem;background:#fff;border:2px solid #e5e7eb;color:#6b7280}.quiz-action-button.secondary:hover{border-color:#667eea;color:#667eea}.action-icon{font-size:1.125rem}.empty-state{text-align:center;padding:4rem 2rem}.empty-icon{font-size:5rem;margin-bottom:1.5rem}.empty-title{font-size:1.75rem;font-weight:900;color:#1f2937;margin:0 0 .75rem}.empty-description{font-size:1.125rem;color:#6b7280;margin:0 0 2rem;font-weight:600}.empty-action-button{display:inline-flex;align-items:center;gap:.5rem;padding:1.125rem 2.5rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:14px;font-weight:900;font-size:1rem;text-decoration:none;cursor:pointer;transition:all .3s ease;box-shadow:0 6px 20px #667eea4d}.empty-action-button:hover{transform:translateY(-3px);box-shadow:0 10px 30px #667eea66}.quick-actions-section{animation:fadeIn .5s ease}.quick-actions-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;margin-top:1.5rem}.quick-action-card{background:#fff;border:2px solid #e5e7eb;border-radius:20px;padding:2rem;text-align:center;text-decoration:none;transition:all .3s ease;display:flex;flex-direction:column;align-items:center;gap:1rem}.quick-action-card:hover{transform:translateY(-6px);border-color:#667eea;box-shadow:0 12px 30px #667eea26}.quick-action-icon{font-size:3rem}.quick-action-card h3{font-size:1.125rem;font-weight:800;color:#1f2937;margin:0}.quick-action-card p{font-size:.9375rem;color:#6b7280;margin:0;font-weight:600}.dashboard-loading{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(135deg,#f5f7fa,#c3cfe2)}.loading-spinner{width:64px;height:64px;border:6px solid #e5e7eb;border-top-color:#667eea;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:1.5rem}.dashboard-loading p{font-size:1.125rem;color:#6b7280;font-weight:600}@media(max-width:1280px){.stats-grid,.quick-actions-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:1024px){.dashboard-container{grid-template-columns:1fr}.dashboard-sidebar{display:none}.subscription-stats{grid-template-columns:1fr}}@media(max-width:768px){.stats-grid{grid-template-columns:1fr}.header-content{flex-direction:column;align-items:flex-start}.quizzes-grid,.quick-actions-grid{grid-template-columns:1fr}.dashboard-header,.dashboard-content{padding:1.5rem}.subscription-card,.quizzes-section{padding:1.75rem}.section-header{flex-direction:column;align-items:flex-start}}@media(max-width:640px){.dashboard-content{padding:1rem}.subscription-card,.quizzes-section,.stat-card{padding:1.5rem}}.logout-nav-item{width:100%;display:flex;align-items:center;gap:12px;padding:14px 20px;background:transparent;border:none;border-radius:12px;cursor:pointer;transition:all .3s ease;font-size:15px;font-weight:500;text-decoration:none;font-family:inherit;margin-top:8px;position:relative;overflow:hidden}.logout-nav-item{color:#f97316;background:linear-gradient(135deg,#f973161a,#ef44441a);border:2px solid transparent}.logout-nav-item:hover{background:linear-gradient(135deg,#f9731626,#ef444426);transform:translate(4px);border-color:#f973164d;box-shadow:0 2px 8px #f9731633}.logout-nav-item:active{transform:translate(2px);background:linear-gradient(135deg,#f9731633,#ef444433)}.logout-nav-item .nav-icon{font-size:20px;transition:transform .3s ease}.logout-nav-item:hover .nav-icon{transform:translate(2px)}.logout-nav-item .nav-text{font-weight:600}.logout-nav-item:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#f973164d;transform:translate(-50%,-50%);transition:width .6s,height .6s}.logout-nav-item:active:before{width:300px;height:300px}.sidebar-nav .nav-item:last-of-type:not(.logout-nav-item){margin-bottom:0}.logout-nav-item{margin-top:16px;padding-top:16px;border-top:2px solid rgba(0,0,0,.05)}@media(max-width:768px){.logout-nav-item{padding:12px 16px}.logout-nav-item .nav-icon{font-size:18px}.logout-nav-item .nav-text{font-size:14px}}.logout-nav-item:focus{outline:none;border-color:#f97316;box-shadow:0 0 0 3px #f9731633}@media(prefers-contrast:high){.logout-nav-item{border:2px solid #f97316}.logout-nav-item:hover{background:#f97316;color:#fff}}@media(prefers-reduced-motion:reduce){.logout-nav-item,.logout-nav-item .nav-icon,.logout-nav-item:before{transition:none}}@keyframes slideInFromLeft{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}.logout-nav-item{animation:slideInFromLeft .4s ease-out .6s both}@keyframes pulse{0%,to{box-shadow:0 0 #f9731666}50%{box-shadow:0 0 0 8px #f9731600}}.logout-nav-item:hover{animation:pulse 1.5s infinite}@media(prefers-color-scheme:dark){.logout-nav-item{color:#fb923c;background:linear-gradient(135deg,#f9731633,#ef444433)}.logout-nav-item:hover{background:linear-gradient(135deg,#f973164d,#ef44444d)}}.logout-modal-overlay{position:fixed;inset:0;background:#0009;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:9999;padding:20px;animation:fadeIn .3s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.logout-modal-content{background:#fff;border-radius:24px;padding:48px 40px;max-width:480px;width:100%;box-shadow:0 20px 60px #0000004d;animation:scaleIn .3s ease-out;text-align:center;position:relative}@keyframes scaleIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.logout-modal-content.success-modal{border:3px solid #10b981}.logout-icon-wrapper,.success-icon-wrapper{width:80px;height:80px;margin:0 auto 24px;border-radius:50%;display:flex;align-items:center;justify-content:center;animation:bounceIn .6s ease-out}@keyframes bounceIn{0%{opacity:0;transform:scale(.3)}50%{transform:scale(1.05)}to{opacity:1;transform:scale(1)}}.logout-icon-wrapper{background:linear-gradient(135deg,#fed7aa,#fdba74)}.success-icon-wrapper{background:linear-gradient(135deg,#d1fae5,#a7f3d0)}.logout-icon,.success-icon{font-size:40px}.logout-icon{color:#ea580c}.success-icon{color:#10b981;font-size:48px;font-weight:700}.logout-modal-title{font-size:28px;font-weight:700;color:#111827;margin:0 0 16px;font-family:Space Grotesk,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.logout-modal-description{font-size:16px;color:#6b7280;line-height:1.6;margin:0 0 32px;font-family:Outfit,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.logout-modal-actions{display:flex;gap:12px;justify-content:center}.logout-modal-button{flex:1;max-width:200px;padding:16px 32px;border:none;border-radius:12px;font-size:15px;font-weight:600;cursor:pointer;transition:all .3s ease;font-family:Outfit,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;display:flex;align-items:center;justify-content:center;gap:8px}.logout-modal-button:disabled{opacity:.6;cursor:not-allowed}.logout-modal-button.primary{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;box-shadow:0 4px 12px #6366f14d}.logout-modal-button.primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #6366f166}.logout-modal-button.primary:active:not(:disabled){transform:translateY(0)}.logout-modal-button.secondary{background:#f3f4f6;color:#374151;border:2px solid #e5e7eb}.logout-modal-button.secondary:hover:not(:disabled){background:#e5e7eb;border-color:#d1d5db}.button-spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}.redirect-message{display:flex;align-items:center;justify-content:center;gap:12px;margin-top:24px;color:#6b7280;font-size:14px;font-weight:500}.loading-dots{display:flex;gap:6px}.dot{width:8px;height:8px;background:#6366f1;border-radius:50%;animation:bounce 1.4s infinite ease-in-out both}.dot:nth-child(1){animation-delay:-.32s}.dot:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}@media(max-width:640px){.logout-modal-content{padding:36px 24px;max-width:90%}.logout-modal-title{font-size:24px}.logout-modal-description{font-size:15px}.logout-modal-actions{flex-direction:column-reverse;gap:8px}.logout-modal-button{max-width:100%;width:100%}.logout-icon-wrapper,.success-icon-wrapper{width:64px;height:64px}.logout-icon,.success-icon{font-size:32px}}.logout-modal-button:focus{outline:none;box-shadow:0 0 0 3px #6366f14d}.logout-modal-button.secondary:focus{box-shadow:0 0 0 3px #d1d5db80}@media(prefers-reduced-motion:reduce){.logout-modal-overlay,.logout-modal-content,.logout-icon-wrapper,.success-icon-wrapper,.logout-modal-button,.button-spinner,.dot{animation:none!important;transition:none!important}}@media(prefers-contrast:high){.logout-modal-content{border:3px solid #000}.logout-modal-button.primary{background:#00f;border:2px solid #000}.logout-modal-button.secondary{border:2px solid #000}}@media(prefers-color-scheme:dark){.logout-modal-content{background:#1f2937;box-shadow:0 20px 60px #0009}.logout-modal-title{color:#f9fafb}.logout-modal-description{color:#d1d5db}.logout-modal-button.secondary{background:#374151;color:#f9fafb;border-color:#4b5563}.logout-modal-button.secondary:hover:not(:disabled){background:#4b5563;border-color:#6b7280}.redirect-message{color:#9ca3af}}.pricing-page{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);padding:60px 20px;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.pricing-header{text-align:center;margin-bottom:60px;color:#fff}.pricing-header h1{font-size:48px;font-weight:700;margin-bottom:16px;text-shadow:0 2px 4px rgba(0,0,0,.1)}.pricing-header p{font-size:20px;opacity:.9;margin-bottom:40px}.billing-toggle{display:inline-flex;background:#fff3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:50px;padding:6px;gap:8px}.billing-toggle button{padding:12px 32px;border:none;border-radius:50px;background:transparent;color:#fff;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s ease;position:relative}.billing-toggle button.active{background:#fff;color:#667eea;box-shadow:0 4px 12px #00000026}.savings-badge{position:absolute;top:-8px;right:-8px;background:#10b981;color:#fff;padding:2px 8px;border-radius:12px;font-size:11px;font-weight:700;white-space:nowrap}.error-alert{max-width:600px;margin:0 auto 30px;background:#fee2e2;border:2px solid #ef4444;border-radius:12px;padding:16px 20px;display:flex;align-items:center;gap:12px}.error-alert span{font-size:24px}.error-alert p{flex:1;color:#991b1b;margin:0}.error-alert button{background:none;border:none;font-size:24px;color:#991b1b;cursor:pointer;padding:0;width:30px;height:30px}.plans-grid{max-width:1400px;margin:0 auto 80px;display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;padding:0 20px}.plan-card{background:#fff;border-radius:20px;padding:40px 30px;box-shadow:0 10px 40px #0000001a;border:3px solid transparent;position:relative;transition:all .3s ease}.plan-card:hover{transform:translateY(-8px);box-shadow:0 20px 60px #00000026}.plan-card.recommended{border-color:#8b5cf6;transform:scale(1.05)}.plan-card.recommended:hover{transform:scale(1.08) translateY(-8px)}.plan-card.current-plan{border-color:#10b981}.popular-badge{position:absolute;top:-15px;left:50%;transform:translate(-50%);background:#8b5cf6;color:#fff;padding:8px 20px;border-radius:20px;font-size:14px;font-weight:700;box-shadow:0 4px 12px #8b5cf666}.current-badge{position:absolute;top:20px;right:20px;background:#10b981;color:#fff;padding:6px 12px;border-radius:12px;font-size:12px;font-weight:700}.plan-header{text-align:center;margin-bottom:30px}.plan-icon{width:80px;height:80px;margin:0 auto 20px;border-radius:20px;display:flex;align-items:center;justify-content:center;font-size:40px}.plan-header h2{font-size:28px;font-weight:700;color:#1f2937;margin-bottom:8px}.plan-description{font-size:16px;color:#6b7280;margin:0}.plan-pricing{text-align:center;margin-bottom:30px}.price{display:flex;align-items:flex-start;justify-content:center;margin-bottom:8px}.currency{font-size:24px;font-weight:600;color:#6b7280;margin-top:8px}.amount{font-size:56px;font-weight:800;color:#1f2937;line-height:1}.period{font-size:18px;color:#6b7280;margin-top:25px;margin-left:4px}.savings-text{font-size:14px;color:#10b981;font-weight:600}.plan-cta{width:100%;padding:16px 32px;border:none;border-radius:12px;font-size:16px;font-weight:700;color:#fff;cursor:pointer;transition:all .3s ease;margin-bottom:30px}.plan-cta:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px #0003}.plan-cta:disabled{opacity:.6;cursor:not-allowed}.plan-cta.current{background:#9ca3af!important}.plan-features h3{font-size:18px;font-weight:700;color:#1f2937;margin-bottom:16px}.plan-features ul{list-style:none;padding:0;margin:0}.plan-features li{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-bottom:1px solid #f3f4f6;font-size:15px;color:#4b5563}.plan-features li:last-child{border-bottom:none}.plan-features .icon{font-size:18px;flex-shrink:0}.comparison-section{max-width:1400px;margin:0 auto 80px;padding:0 20px}.comparison-section h2{text-align:center;font-size:36px;font-weight:700;color:#fff;margin-bottom:40px}.comparison-table-wrapper{background:#fff;border-radius:20px;padding:40px;box-shadow:0 10px 40px #0000001a;overflow-x:auto}.comparison-table{width:100%;border-collapse:collapse}.comparison-table thead{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.comparison-table th,.comparison-table td{padding:16px 20px;text-align:left;border-bottom:1px solid #f3f4f6}.comparison-table th{font-weight:700;font-size:16px}.comparison-table th:first-child,.comparison-table td:first-child{font-weight:600;color:#1f2937}.comparison-table td{font-size:15px;color:#4b5563}.comparison-table tbody tr:hover{background:#f9fafb}.faq-section{max-width:1200px;margin:0 auto;padding:0 20px}.faq-section h2{text-align:center;font-size:36px;font-weight:700;color:#fff;margin-bottom:40px}.faq-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:30px}.faq-item{background:#fff;border-radius:16px;padding:30px;box-shadow:0 4px 20px #00000014;transition:all .3s ease}.faq-item:hover{transform:translateY(-4px);box-shadow:0 8px 30px #0000001f}.faq-item h3{font-size:18px;font-weight:700;color:#1f2937;margin-bottom:12px}.faq-item p{font-size:15px;color:#6b7280;line-height:1.6;margin:0}.pricing-loading{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff}.spinner{width:50px;height:50px;border:4px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite;margin-bottom:20px}@media(max-width:768px){.pricing-header h1{font-size:32px}.pricing-header p{font-size:16px}.plans-grid{grid-template-columns:1fr}.plan-card.recommended{transform:scale(1)}.plan-card.recommended:hover{transform:scale(1.02) translateY(-8px)}.billing-toggle button{padding:10px 20px;font-size:14px}.amount{font-size:42px}.comparison-table-wrapper{padding:20px}.comparison-table th,.comparison-table td{padding:12px;font-size:14px}.faq-grid{grid-template-columns:1fr}}.subscription-dashboard{min-height:100vh;background:#f9fafb;padding:40px 20px}.dashboard-header{max-width:1400px;margin:0 auto 40px;display:flex;justify-content:space-between;align-items:center;background:#fff;padding:30px;border-radius:16px;box-shadow:0 4px 20px #00000014}.header-content h1{font-size:32px;font-weight:700;color:#1f2937;margin-bottom:8px}.header-content p{font-size:16px;color:#6b7280;margin:0}.upgrade-btn{padding:14px 28px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:12px;font-size:16px;font-weight:700;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #667eea66}.upgrade-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #667eea80}.current-plan-card{max-width:1400px;margin:0 auto 40px;background:linear-gradient(135deg,#667eea,#764ba2);padding:40px;border-radius:20px;box-shadow:0 10px 40px #667eea4d;text-align:center;color:#fff}.plan-badge{font-size:60px;margin-bottom:16px}.current-plan-card h2{font-size:36px;font-weight:800;margin-bottom:8px}.plan-status{font-size:18px;opacity:.9;margin-bottom:20px}.cancel-btn{padding:10px 24px;background:#fff3;border:2px solid white;color:#fff;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:all .3s ease}.cancel-btn:hover{background:#fff;color:#667eea}.usage-section{max-width:1400px;margin:0 auto 40px}.usage-section h2{font-size:28px;font-weight:700;color:#1f2937;margin-bottom:24px;padding:0 20px}.usage-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}.usage-card{background:#fff;padding:28px;border-radius:16px;box-shadow:0 4px 20px #00000014;transition:all .3s ease}.usage-card:hover{transform:translateY(-4px);box-shadow:0 8px 30px #0000001f}.usage-header{display:flex;align-items:center;gap:12px;margin-bottom:20px}.usage-icon{width:50px;height:50px;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:24px}.usage-header h3{font-size:18px;font-weight:700;color:#1f2937;margin:0}.usage-stats{margin-top:16px}.usage-numbers{display:flex;align-items:baseline;gap:8px;margin-bottom:12px}.usage-numbers .current{font-size:36px;font-weight:800;color:#1f2937}.usage-numbers .separator{font-size:24px;color:#9ca3af}.usage-numbers .max{font-size:24px;font-weight:600;color:#6b7280}.usage-bar{width:100%;height:8px;background:#e5e7eb;border-radius:4px;overflow:hidden;margin-bottom:8px}.usage-progress{height:100%;border-radius:4px;transition:all .5s ease}.usage-text{font-size:14px;color:#6b7280;margin:0}.usage-text.disabled{text-align:center;padding:20px 0;color:#9ca3af}.upgrade-link{margin-top:8px;padding:8px 16px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;transition:all .3s ease}.upgrade-link:hover{transform:scale(1.05)}.features-section{max-width:1400px;margin:0 auto}.features-section h2{font-size:28px;font-weight:700;color:#1f2937;margin-bottom:24px;padding:0 20px}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}.feature-item{background:#fff;padding:24px;border-radius:12px;box-shadow:0 4px 15px #0000000f;text-align:center;position:relative;transition:all .3s ease}.feature-item.enabled{border:2px solid #10b981}.feature-item.disabled{border:2px solid #e5e7eb;opacity:.6}.feature-item:hover{transform:translateY(-2px);box-shadow:0 6px 20px #0000001a}.feature-icon{font-size:40px;margin-bottom:12px}.feature-item h3{font-size:16px;font-weight:700;color:#1f2937;margin-bottom:8px}.feature-item p{font-size:14px;color:#6b7280;margin:0}.feature-lock{position:absolute;top:16px;right:16px;font-size:20px}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.modal-content{background:#fff;padding:40px;border-radius:16px;max-width:500px;width:100%;box-shadow:0 20px 60px #0000004d}.modal-content h2{font-size:24px;font-weight:700;color:#1f2937;margin-bottom:16px}.modal-content p{font-size:16px;color:#6b7280;line-height:1.6;margin-bottom:24px}.modal-actions{display:flex;gap:12px}.btn-secondary,.btn-danger{flex:1;padding:12px 24px;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s ease}.btn-secondary{background:#e5e7eb;color:#1f2937}.btn-secondary:hover{background:#d1d5db}.btn-danger{background:#ef4444;color:#fff}.btn-danger:hover{background:#dc2626;transform:translateY(-2px)}.dashboard-loading{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center}.spinner{width:50px;height:50px;border:4px solid #e5e7eb;border-top-color:#667eea;border-radius:50%;animation:spin .8s linear infinite;margin-bottom:20px}@keyframes spin{to{transform:rotate(360deg)}}.dashboard-loading p{font-size:16px;color:#6b7280}.dashboard-error{min-height:100vh;display:flex;align-items:center;justify-content:center;font-size:18px;color:#ef4444}@media(max-width:768px){.dashboard-header{flex-direction:column;gap:20px;text-align:center}.header-content h1{font-size:24px}.current-plan-card h2{font-size:28px}.usage-grid,.features-grid{grid-template-columns:1fr}.usage-numbers .current{font-size:28px}.modal-content{padding:24px}.modal-actions{flex-direction:column}}@tailwind base;@tailwind components;@tailwind utilities;*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
