:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:#172033;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f4f7fb;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-weight:400;line-height:1.5}*{box-sizing:border-box;margin:0;padding:0}body{background:#f4f7fb;min-width:320px;min-height:100vh;margin:0}h1,h2,h3,h4{margin:0}button{font-family:inherit}#root,.app-shell{width:100%}*{box-sizing:border-box}.app{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);min-height:100vh;padding:20px}.app-shell{background:radial-gradient(circle at 6% 3%,#ffe69bb8,#0000 24rem),radial-gradient(circle at 96% 8%,#abdaffc7,#0000 26rem),#f4f7fb;min-height:100vh;padding:clamp(1rem,3vw,2.5rem)}.home-view{max-width:1120px;margin:0 auto}.home-hero{color:#fff;background:linear-gradient(118deg,#233b72 0%,#315ba8 54%,#4d89c7 100%);border-radius:30px;min-height:258px;margin-bottom:2rem;padding:clamp(1.25rem,4vw,2.75rem);position:relative;overflow:hidden;box-shadow:0 24px 55px #1f3a7038}.home-hero:after{content:"";aspect-ratio:1;border:2.5rem solid #ffffff1a;border-radius:50%;width:18rem;position:absolute;bottom:-8rem;right:-4rem}.brand-lockup,.user-bar{z-index:1;align-items:center;display:flex;position:relative}.brand-lockup{letter-spacing:-.02em;gap:.65rem;font-weight:800}.brand-mark{color:#23437f;background:#ffdc70;border-radius:.65rem;place-items:center;width:2rem;height:2rem;font-family:Georgia,serif;font-size:1.25rem;display:grid}.home-hero .user-bar{gap:.5rem;font-size:.9rem;position:absolute;top:clamp(1.25rem,4vw,2.75rem);right:clamp(1.25rem,4vw,2.75rem)}.hero-copy{z-index:1;max-width:660px;margin-top:clamp(2.6rem,7vw,4.8rem);position:relative}.eyebrow{color:#5d6990;letter-spacing:.09em;text-transform:uppercase;font-size:.78rem;font-weight:800}.home-hero .eyebrow{color:#ffdc70}.hero-copy h1{letter-spacing:-.055em;margin:.5rem 0 .7rem;font-size:clamp(2rem,5vw,3.7rem);line-height:1.04}.home-hero .subtitle{color:#ffffffdb;max-width:540px}.group-section{background:#ffffffbd;border:1px solid #20366514;border-radius:26px;margin-bottom:1.5rem;padding:clamp(1.2rem,3vw,2rem);box-shadow:0 12px 35px #283d660f}.section-heading{justify-content:space-between;align-items:end;gap:1rem;margin-bottom:1.35rem;display:flex}.section-heading h2{letter-spacing:-.035em;margin-top:.3rem;font-size:clamp(1.35rem,3vw,1.8rem)}.session-note{color:#69738c;font-size:.9rem}.header{text-align:center;margin-bottom:40px}.header h1{color:#fff;text-shadow:2px 2px 4px #0003;margin-bottom:10px;font-size:3rem}.subtitle{color:#ffffffe6;font-size:1.2rem}.groups-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px;margin-bottom:40px;display:grid}.group-card{cursor:pointer;text-align:center;background:#fff;border:1px solid #1c315714;border-radius:20px;flex-direction:column;align-items:center;padding:30px 20px;transition:transform .3s,box-shadow .3s;display:flex;box-shadow:0 8px 20px #21335512}.group-card:hover{transform:translateY(-5px)rotate(-.4deg);box-shadow:0 15px 28px #21335526}.group-number{color:var(--group-color);font-size:3rem;font-weight:700;line-height:1}.group-name{color:#333;margin-top:10px;font-size:1.2rem;font-weight:600}.group-age{color:#666;margin-top:5px;font-size:.9rem}.info-section{text-align:left;background:#fff8e4;border:1px solid #f2dfad;border-radius:22px;align-items:flex-start;gap:1rem;padding:1.35rem 1.5rem;display:flex}.info-icon{color:#7c5900;background:#ffdc70;border-radius:50%;flex:none;place-items:center;width:2.4rem;height:2.4rem;display:grid}.info-section h3{color:#333;margin-bottom:15px;font-size:1.5rem}.info-section p{color:#6b6250;margin:0}@media (max-width:700px){.app-shell{padding:.75rem}.home-hero{border-radius:22px}.home-hero .user-bar{flex-wrap:wrap;margin-top:1rem;position:relative;top:auto;right:auto}.hero-copy{margin-top:2.2rem}.section-heading{flex-direction:column;align-items:flex-start}.session-note{display:none}}.features{flex-wrap:wrap;justify-content:center;gap:40px;display:flex}.feature{align-items:center;gap:10px;display:flex}.feature-icon{font-size:1.5rem}.generator-link-button{color:#fff;cursor:pointer;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border:none;border-radius:12px;width:100%;max-width:400px;margin:2rem auto 0;padding:1rem 2rem;font-size:1.1rem;font-weight:600;transition:all .3s;display:block;box-shadow:0 4px 15px #667eea4d}.generator-link-button:hover{transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.admin-links{flex-wrap:wrap;justify-content:center;gap:20px;margin-top:30px;display:flex}.uploader-link-button,.login-link-button{color:#fff;cursor:pointer;border:none;border-radius:12px;padding:1rem 2rem;font-size:1.1rem;font-weight:600;transition:all .3s;box-shadow:0 4px 15px #0003}.uploader-link-button{background:linear-gradient(135deg,#4caf50 0%,#45a049 100%)}.uploader-link-button:hover{transform:translateY(-2px);box-shadow:0 8px 25px #4caf5080}.login-link-button{background:linear-gradient(135deg,#ff6b6b 0%,#ee5a6f 100%)}.login-link-button:hover{transform:translateY(-2px);box-shadow:0 8px 25px #ff6b6b80}.admin-badge{color:#333;background:#fffffff2;border-radius:25px;align-items:center;gap:15px;margin-top:15px;padding:12px 24px;font-size:1rem;display:inline-flex;box-shadow:0 4px 15px #0000001a}.admin-badge strong{color:#667eea}.logout-button{color:#fff;cursor:pointer;background:#f44336;border:none;border-radius:12px;padding:6px 16px;font-size:.85rem;font-weight:600;transition:all .2s}.logout-button:hover{background:#d32f2f;transform:scale(1.05)}.admin-view{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);min-height:100vh;padding:20px}.admin-view .back-button{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#fff;cursor:pointer;background:#fff3;border:2px solid #ffffff4d;border-radius:12px;margin-bottom:20px;padding:12px 24px;font-size:1rem;font-weight:600;transition:all .3s}.admin-view .back-button:hover{background:#ffffff4d;transform:translate(-5px)}.generator-container{max-width:1400px;margin:0 auto}.generator-container .back-button{margin-bottom:1rem}.subject-view{max-width:1000px;margin:0 auto}.back-button{color:#fff;cursor:pointer;background:#fff3;border:none;border-radius:10px;margin-bottom:30px;padding:10px 20px;font-size:1rem;transition:background .3s}.back-button:hover{background:#ffffff4d}.subjects-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;display:grid}.subject-card{cursor:pointer;background:#fff;border:none;border-radius:20px;flex-direction:column;align-items:center;padding:30px;transition:transform .3s,box-shadow .3s;display:flex;box-shadow:0 4px 15px #0000001a}.subject-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px #0003}.subject-icon{margin-bottom:15px;font-size:3rem}.subject-name{color:#333;margin-bottom:10px;font-size:1.3rem;font-weight:600}.subject-desc{color:#666;text-align:center;margin-bottom:15px;font-size:.9rem}.exam-duration{color:#888;background:#f0f0f0;border-radius:20px;padding:5px 15px;font-size:.85rem}.exam-view{max-width:1200px;margin:0 auto}.exam-header{background:#fff;border-radius:15px;justify-content:space-between;align-items:center;margin-bottom:20px;padding:15px 25px;display:flex;box-shadow:0 4px 15px #0000001a}.exam-info{align-items:center;gap:15px;display:flex}.exam-group{color:#fff;border-radius:20px;padding:8px 16px;font-weight:600}.exam-subject{color:#333;font-size:1.1rem}.timer{color:#333;background:#f0f0f0;border-radius:10px;align-items:center;gap:10px;padding:10px 20px;font-size:1.5rem;font-weight:700;display:flex}.timer.warning{color:#d32f2f;background:#ffe0e0;animation:1s infinite pulse}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.exam-content{grid-template-columns:1fr 300px;gap:20px;display:grid}@media (max-width:900px){.exam-content{grid-template-columns:1fr}.tips-section{order:-1}}.question-section{background:#fff;border-radius:20px;padding:30px;box-shadow:0 4px 15px #0000001a}.question-progress{margin-bottom:25px}.question-progress span{color:#666;margin-bottom:10px;display:block}.progress-bar{background:#e0e0e0;border-radius:4px;height:8px;overflow:hidden}.progress-fill{background:linear-gradient(90deg,#667eea,#764ba2);border-radius:4px;height:100%;transition:width .3s}.question-card{margin-bottom:25px}.question-text{color:#333;margin-bottom:25px;font-size:1.4rem;line-height:1.5}.options-grid{flex-direction:column;gap:15px;display:flex}.option-button{cursor:pointer;text-align:left;background:#f8f9fa;border:2px solid #e0e0e0;border-radius:12px;align-items:center;gap:15px;padding:15px 20px;font-size:1rem;transition:all .3s;display:flex}.option-button:hover:not(:disabled){background:#f0f3ff;border-color:#667eea}.option-button.selected{background:#e8ecff;border-color:#667eea}.option-button.correct{background:#e8f5e9;border-color:#4caf50}.option-button.incorrect{background:#ffebee;border-color:#f44336}.option-button:disabled{cursor:default}.option-letter{color:#fff;background:#667eea;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:35px;height:35px;font-weight:700;display:flex}.option-button.correct .option-letter{background:#4caf50}.option-button.incorrect .option-letter{background:#f44336}.option-text{color:#333}.explanation{border-radius:12px;align-items:flex-start;gap:15px;margin-top:20px;padding:20px;display:flex}.explanation.correct{background:#e8f5e9;border:1px solid #4caf50}.explanation.incorrect{background:#ffebee;border:1px solid #f44336}.explanation-icon{font-size:1.5rem}.explanation-text{color:#333;line-height:1.5}.navigation-buttons{justify-content:space-between;gap:15px;display:flex}.nav-button{cursor:pointer;border:none;border-radius:12px;flex:1;padding:15px 25px;font-size:1rem;font-weight:600;transition:all .3s}.nav-button.prev{color:#333;background:#f0f0f0}.nav-button.prev:hover:not(:disabled){background:#e0e0e0}.nav-button.next{color:#fff;background:linear-gradient(90deg,#667eea,#764ba2)}.nav-button.next:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 15px #667eea66}.nav-button:disabled{opacity:.5;cursor:not-allowed}.tips-section{flex-direction:column;gap:20px;display:flex}.tips-card{background:linear-gradient(135deg,#ffecd2 0%,#fcb69f 100%);border-radius:15px;padding:20px;box-shadow:0 4px 15px #0000001a}.tips-card h3{color:#8b4513;margin-bottom:10px;font-size:1.2rem}.tip-text{color:#5d4037;font-size:1rem;line-height:1.6}.question-overview{background:#fff;border-radius:15px;padding:20px;box-shadow:0 4px 15px #0000001a}.question-overview h4{color:#333;margin-bottom:15px;font-size:1rem}.question-dots{flex-wrap:wrap;gap:8px;display:flex}.question-dot{color:#666;cursor:pointer;background:#f0f0f0;border:2px solid #0000;border-radius:50%;justify-content:center;align-items:center;width:35px;height:35px;font-size:.9rem;font-weight:600;transition:all .3s;display:flex}.question-dot.current{color:#667eea;background:#e8ecff;border-color:#667eea}.question-dot.correct{color:#4caf50;background:#e8f5e9}.question-dot.incorrect{color:#f44336;background:#ffebee}.results-view{max-width:800px;margin:0 auto}.results-card{text-align:center;background:#fff;border-radius:25px;padding:40px;box-shadow:0 10px 40px #0003}.results-emoji{margin-bottom:20px;font-size:5rem}.results-card h1{color:#333;margin-bottom:30px;font-size:2.5rem}.score-circle{background:conic-gradient(#667eea calc(var(--percentage) * 1%), #e0e0e0 calc(var(--percentage) * 1%));border-radius:50%;flex-direction:column;justify-content:center;align-items:center;width:180px;height:180px;margin:0 auto 30px;display:flex;position:relative}.score-circle:before{content:"";background:#fff;border-radius:50%;width:150px;height:150px;position:absolute}.score-value{color:#667eea;font-size:2rem;font-weight:700;position:relative}.score-percent{color:#666;font-size:1.2rem;position:relative}.result-message{color:#333;margin-bottom:30px;font-size:1.3rem}.results-details{text-align:left;grid-template-columns:repeat(2,1fr);gap:15px;margin-bottom:30px;display:grid}.result-item{background:#f8f9fa;border-radius:10px;justify-content:space-between;padding:15px;display:flex}.result-item.correct{background:#e8f5e9}.result-item.incorrect{background:#ffebee}.result-label{color:#666}.result-value{font-weight:600}.answers-review{text-align:left;background:#f8f9fa;border-radius:15px;max-height:300px;margin-bottom:30px;padding:20px;overflow-y:auto}.answers-review h3{color:#333;margin-bottom:15px}.answer-item{border-radius:8px;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:10px;padding:12px;display:flex}.answer-item.correct{background:#e8f5e9}.answer-item.incorrect{background:#ffebee}.answer-number{color:#666;width:25px;font-weight:700}.answer-status{font-size:1.2rem}.answer-question{color:#333;flex:1}.correct-answer{color:#4caf50;width:100%;margin-top:5px;padding-left:45px;font-size:.9rem}.results-actions{flex-direction:column;gap:15px;display:flex}.action-button{cursor:pointer;border:none;border-radius:12px;padding:15px 30px;font-size:1.1rem;font-weight:600;transition:all .3s}.action-button.primary{color:#fff;background:linear-gradient(90deg,#667eea,#764ba2)}.action-button.primary:hover{transform:translateY(-2px);box-shadow:0 4px 15px #667eea66}.action-button.secondary{color:#333;background:#f0f0f0}.action-button.secondary:hover{background:#e0e0e0}.action-button.tertiary{color:#667eea;background:0 0;border:2px solid #667eea}.action-button.tertiary:hover{background:#f0f3ff}@media (max-width:600px){.app{padding:10px}.header h1{font-size:2rem}.groups-grid{grid-template-columns:repeat(2,1fr)}.subjects-grid{grid-template-columns:1fr}.question-text{font-size:1.2rem}.results-card{padding:20px}.results-details{grid-template-columns:1fr}}