:root{--bg-primary:#f0f2ff;--bg-secondary:#fff;--bg-card:#fff;--bg-hover:#e8ebff;--bg-input:#f5f6fa;--text-primary:#0d0f1a;--text-secondary:#5a5f7a;--text-muted:#9ca3af;--text-inverse:#fff;--accent-primary:#6366f1;--accent-secondary:#8b5cf6;--accent-gradient:linear-gradient(135deg, #6366f1, #8b5cf6);--accent-glow:#6366f11f;--border:#e2e5f5;--border-focus:#6366f1;--success:#10b981;--success-bg:#d1fae5;--error:#ef4444;--error-bg:#fee2e2;--warning:#f59e0b;--warning-bg:#fef3c7;--shadow-sm:0 1px 3px #6366f10f, 0 1px 2px #0000000a;--shadow-md:0 4px 16px #6366f11a, 0 2px 6px #0000000a;--shadow-lg:0 10px 40px #6366f11f, 0 4px 12px #0000000d;--shadow-accent:0 4px 20px #6366f14d;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--radius-full:9999px;--transition:all .2s ease;--transition-slow:all .35s ease;--navbar-height:64px}[data-theme=dark]{--bg-primary:#0a0b14;--bg-secondary:#111827;--bg-card:#161b2e;--bg-hover:#1e2540;--bg-input:#1a2035;--text-primary:#f0f2ff;--text-secondary:#9ca3c9;--text-muted:#6b7280;--text-inverse:#0d0f1a;--accent-primary:#818cf8;--accent-secondary:#a78bfa;--accent-gradient:linear-gradient(135deg, #818cf8, #a78bfa);--accent-glow:#818cf833;--border:#1e2843;--border-focus:#818cf8;--success-bg:#10b98126;--error-bg:#ef444426;--warning-bg:#f59e0b26;--shadow-sm:0 1px 3px #0000004d, 0 1px 2px #0003;--shadow-md:0 4px 16px #0006, 0 2px 6px #0003;--shadow-lg:0 10px 40px #00000080, 0 4px 12px #0000004d;--shadow-accent:0 4px 20px #818cf84d}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-inter), -apple-system, BlinkMacSystemFont, sans-serif;background-color:var(--bg-primary);color:var(--text-primary);background-image:radial-gradient(at 20%,#6366f10d 0%,#0000 60%),radial-gradient(at 80% 10%,#8b5cf60d 0%,#0000 50%);min-height:100vh;line-height:1.6;transition:background-color .3s,color .3s}[data-theme=dark] body{background-image:radial-gradient(at 20%,#818cf80f 0%,#0000 60%),radial-gradient(at 80% 10%,#a78bfa0f 0%,#0000 50%)}h1,h2,h3,h4,h5,h6{font-family:var(--font-space-grotesk), sans-serif;color:var(--text-primary);font-weight:700;line-height:1.3}.page-kicker{color:var(--accent-primary);text-transform:uppercase;letter-spacing:.08em;margin-bottom:8px;font-size:12px;font-weight:800}.btn{border-radius:var(--radius-md);font-family:var(--font-inter), sans-serif;cursor:pointer;transition:var(--transition);white-space:nowrap;border:none;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:14px;font-weight:600;text-decoration:none;display:inline-flex;position:relative;overflow:hidden}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--accent-gradient);color:#fff;box-shadow:var(--shadow-accent)}.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 24px #6366f159}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-secondary{background:var(--bg-card);color:var(--text-primary);border:1.5px solid var(--border)}.btn-secondary:hover:not(:disabled){background:var(--bg-hover);border-color:var(--accent-primary);color:var(--accent-primary)}.btn-ghost{color:var(--text-secondary);background:0 0}.btn-ghost:hover:not(:disabled){background:var(--bg-hover);color:var(--text-primary)}.btn-danger{background:var(--error);color:#fff}.btn-sm{border-radius:var(--radius-sm);padding:6px 14px;font-size:13px}.btn-lg{border-radius:var(--radius-lg);padding:14px 28px;font-size:16px}.btn-block{width:100%}.form-group{flex-direction:column;gap:6px;display:flex}.form-label{color:var(--text-secondary);letter-spacing:.02em;text-transform:uppercase;font-size:13px;font-weight:600}.form-input{background:var(--bg-input);border:1.5px solid var(--border);border-radius:var(--radius-md);width:100%;font-size:15px;font-family:var(--font-inter), sans-serif;color:var(--text-primary);transition:var(--transition);outline:none;padding:12px 16px}.form-input:focus{border-color:var(--border-focus);background:var(--bg-secondary);box-shadow:0 0 0 3px var(--accent-glow)}.form-input::placeholder{color:var(--text-muted)}.form-select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%236b7280'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");background-position:right 12px center;background-repeat:no-repeat;background-size:20px;padding-right:40px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:var(--transition)}.card-hover:hover{box-shadow:var(--shadow-md);border-color:var(--accent-primary);transform:translateY(-2px)}.badge{border-radius:var(--radius-full);align-items:center;padding:3px 10px;font-size:12px;font-weight:600;display:inline-flex}.badge-primary{background:var(--accent-glow);color:var(--accent-primary)}.badge-success{background:var(--success-bg);color:var(--success)}.badge-error{background:var(--error-bg);color:var(--error)}.badge-warning{background:var(--warning-bg);color:var(--warning)}.container{max-width:1100px;margin:0 auto;padding:0 20px}.page-wrapper{padding-top:calc(var(--navbar-height) + 32px);min-height:100vh}.app-shell{flex-direction:column;min-height:100vh;display:flex}.app-main{flex:1}.site-footer{border-top:1px solid var(--border);background:color-mix(in srgb, var(--bg-secondary) 92%, transparent);padding:16px 0 20px}.site-footer-card{border:1px solid var(--border);border-radius:var(--radius-lg);background:linear-gradient(180deg, color-mix(in srgb, var(--accent-glow) 40%, transparent), transparent 45%), var(--bg-card);box-shadow:var(--shadow-sm);justify-content:space-between;align-items:center;gap:18px;padding:14px 16px;display:flex;position:relative;overflow:hidden}.site-footer-card:before{content:"";background:var(--accent-gradient);opacity:.9;height:2px;position:absolute;top:0;left:0;right:0}.site-footer-brand{align-items:center;gap:10px;min-width:0;display:flex}.site-footer-dot{background:var(--accent-gradient);color:#fff;width:30px;height:30px;box-shadow:var(--shadow-accent);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:14px;display:inline-flex}.site-footer-title{font-family:var(--font-space-grotesk), sans-serif;letter-spacing:.02em;color:var(--text-primary);font-size:14px;font-weight:700;line-height:1.2}.site-footer-subtitle{color:var(--text-muted);margin-top:2px;font-size:12px;line-height:1.2}.site-footer-meta{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:10px;display:flex}.site-footer-copy{color:var(--text-secondary);font-size:13px}.site-footer-separator{color:var(--text-muted);font-size:12px}.site-footer-link{color:var(--accent-primary);font-weight:600;text-decoration:none}.site-footer-link:hover{text-decoration:underline}.site-footer-new{border-top:1px solid var(--border);background:linear-gradient(180deg, var(--bg-secondary) 0%, color-mix(in srgb, var(--bg-secondary) 95%, var(--accent-primary) 5%) 100%);margin-top:80px;padding:60px 0 20px;position:relative;overflow:hidden}.site-footer-new:before{content:"";background:linear-gradient(90deg, transparent, var(--accent-primary), transparent);opacity:.5;height:1px;position:absolute;top:0;left:0;right:0}.footer-bg-decoration{background:radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);pointer-events:none;z-index:0;width:400px;height:400px;position:absolute;top:-200px;right:-100px}[data-theme=dark] .footer-bg-decoration{background:radial-gradient(circle,#818cf814 0%,#0000 70%)}.footer-container{z-index:1;max-width:1100px;margin:0 auto;padding:0 20px;position:relative}.footer-top{grid-template-columns:1fr 2fr;align-items:start;gap:60px;margin-bottom:40px;display:grid}@media (max-width:768px){.footer-top{grid-template-columns:1fr;gap:40px}}.footer-brand-section{flex-direction:column;align-items:flex-start;gap:32px;display:flex}.footer-brand{align-items:flex-start;gap:16px;display:flex}.footer-logo{border-radius:var(--radius-md);background:var(--accent-gradient);width:48px;height:48px;box-shadow:var(--shadow-accent);flex-shrink:0;justify-content:center;align-items:center;display:flex;position:relative}.footer-logo:after{content:"";border-radius:var(--radius-md);background:var(--accent-gradient);opacity:.2;filter:blur(8px);z-index:-1;position:absolute;inset:-2px}.footer-logo-icon{color:#fff;justify-content:center;align-items:center;font-size:24px;display:flex}.footer-brand-title{font-family:var(--font-space-grotesk), sans-serif;color:var(--text-primary);letter-spacing:-.02em;margin:0;font-size:20px;font-weight:700}.footer-brand-desc{color:var(--text-secondary);max-width:280px;margin:4px 0 0;font-size:13px;line-height:1.5}.footer-social{flex-wrap:wrap;gap:12px;display:flex}.footer-social-link{border-radius:var(--radius-md);background:color-mix(in srgb, var(--accent-primary) 10%, transparent);border:1px solid color-mix(in srgb, var(--accent-primary) 20%, transparent);width:40px;height:40px;color:var(--accent-primary);transition:var(--transition);justify-content:center;align-items:center;font-size:18px;text-decoration:none;display:flex}.footer-social-icon{justify-content:center;align-items:center;display:inline-flex}.footer-social-link:hover{background:var(--accent-gradient);color:#fff;border-color:var(--accent-primary);transform:translateY(-2px)}.footer-social-link:active{transform:translateY(0)}.footer-links-grid{grid-template-columns:repeat(3,1fr);gap:40px;display:grid}@media (max-width:768px){.footer-links-grid{grid-template-columns:repeat(2,1fr);gap:32px}}@media (max-width:480px){.footer-links-grid{grid-template-columns:1fr;gap:24px}}.footer-links-section{flex-direction:column;gap:16px;display:flex}.footer-section-title{font-family:var(--font-space-grotesk), sans-serif;color:var(--text-primary);text-transform:uppercase;letter-spacing:.08em;margin:0;font-size:14px;font-weight:700}.footer-links-list{flex-direction:column;gap:10px;margin:0;padding:0;list-style:none;display:flex}.footer-link{color:var(--text-secondary);transition:var(--transition);align-items:center;gap:6px;padding:4px 0;font-size:13px;text-decoration:none;display:inline-flex;position:relative}.footer-link:before{content:"→";opacity:0;transition:var(--transition);transform:translate(-4px)}.footer-link:hover{color:var(--accent-primary);padding-left:4px}.footer-link:hover:before{opacity:1;transform:translate(0)}.footer-divider{background:linear-gradient(90deg, transparent, var(--border), transparent);height:1px;margin:40px 0}.footer-bottom{grid-template-columns:1fr auto;align-items:center;gap:32px;padding-bottom:20px;display:grid}@media (max-width:640px){.footer-bottom{grid-template-columns:1fr;gap:24px}}.footer-copyright,.footer-credits{color:var(--text-secondary);margin:0;font-size:12px;line-height:1.5}.footer-copyright-link,.footer-credits-link{color:var(--accent-primary);transition:var(--transition);font-weight:600;text-decoration:none}.footer-copyright-link:hover,.footer-credits-link:hover{color:var(--accent-secondary);text-decoration:underline}.footer-heart{color:#ef4444;align-items:center;margin:0 2px;animation:1.2s ease-in-out infinite heartbeat;display:inline-flex}@keyframes heartbeat{0%,to{transform:scale(1)}25%{transform:scale(1.2)}}.scroll-to-top{z-index:99;background:var(--accent-gradient);color:#fff;cursor:pointer;width:48px;height:48px;transition:var(--transition);box-shadow:var(--shadow-accent);border:none;border-radius:50%;justify-content:center;align-items:center;font-size:20px;font-weight:700;animation:.3s ease-out slideUp;display:flex;position:fixed;bottom:30px;right:30px}.scroll-to-top:hover{transform:translateY(-3px);box-shadow:0 6px 24px #6366f166}.scroll-to-top:active{transform:translateY(-1px)}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width:640px){.scroll-to-top{width:44px;height:44px;font-size:18px;bottom:20px;right:20px}}.navbar{height:var(--navbar-height);border-bottom:1px solid var(--border);z-index:100;-webkit-backdrop-filter:blur(20px)saturate(180%);background:#ffffffd9;position:fixed;top:0;left:0;right:0}[data-theme=dark] .navbar{background:#111827d9}.navbar-inner{align-items:center;gap:16px;max-width:1100px;height:100%;margin:0 auto;padding:0 20px;display:flex}.navbar-logo{font-family:var(--font-space-grotesk), sans-serif;color:var(--text-primary);flex-shrink:0;align-items:center;gap:10px;font-size:20px;font-weight:700;text-decoration:none;display:flex}.navbar-logo-icon{background:var(--accent-gradient);border-radius:var(--radius-sm);justify-content:center;align-items:center;width:36px;height:36px;font-size:18px;display:flex}.navbar-nav{align-items:center;gap:4px;margin-left:auto;display:flex}.nav-link{border-radius:var(--radius-md);color:var(--text-secondary);transition:var(--transition);align-items:center;gap:6px;padding:8px 14px;font-size:14px;font-weight:500;text-decoration:none;display:flex}.nav-link:hover,.nav-link.active{color:var(--accent-primary);background:var(--bg-hover)}.navbar-actions{align-items:center;gap:8px;margin-left:8px;display:flex}.theme-toggle{border-radius:var(--radius-md);border:1.5px solid var(--border);background:var(--bg-input);cursor:pointer;width:40px;height:40px;transition:var(--transition);justify-content:center;align-items:center;font-size:18px;display:flex}.theme-toggle:hover{background:var(--bg-hover);border-color:var(--accent-primary)}.auth-wrapper{background:var(--bg-primary);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex;position:relative;overflow:hidden}.auth-bg-orb{filter:blur(80px);opacity:.15;pointer-events:none;border-radius:50%;position:absolute}.auth-bg-orb-1{background:var(--accent-primary);width:500px;height:500px;top:-150px;right:-100px}.auth-bg-orb-2{background:var(--accent-secondary);width:400px;height:400px;bottom:-100px;left:-100px}.auth-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);width:100%;max-width:440px;box-shadow:var(--shadow-lg);z-index:1;padding:40px;position:relative}.auth-logo{align-items:center;gap:12px;margin-bottom:32px;display:flex}.auth-logo-icon{background:var(--accent-gradient);border-radius:var(--radius-md);justify-content:center;align-items:center;width:48px;height:48px;font-size:24px;display:flex}.auth-title{margin-bottom:6px;font-size:26px}.auth-subtitle{color:var(--text-secondary);margin-bottom:28px;font-size:14px}.auth-form-fields{flex-direction:column;gap:16px;margin-bottom:24px;display:flex}.auth-inline-actions{align-items:center;gap:10px;display:flex}.auth-inline-actions .form-input{flex:1}.auth-inline-head{justify-content:space-between;align-items:center;gap:10px;display:flex}.auth-small-link{font-size:13px;font-weight:600}.auth-divider{text-align:center;color:var(--text-muted);margin:16px 0;font-size:13px;position:relative}.auth-divider:before,.auth-divider:after{content:"";background:var(--border);width:40%;height:1px;position:absolute;top:50%}.auth-divider:before{left:0}.auth-divider:after{right:0}.auth-footer{text-align:center;color:var(--text-secondary);margin-top:20px;font-size:14px}.auth-link{color:var(--accent-primary);font-weight:600;text-decoration:none}.auth-link:hover{text-decoration:underline}.error-message{background:var(--error-bg);color:var(--error);border-radius:var(--radius-md);align-items:center;gap:8px;padding:12px 16px;font-size:14px;font-weight:500;display:flex}.success-message{background:var(--success-bg);color:var(--success);border-radius:var(--radius-md);align-items:center;gap:8px;padding:12px 16px;font-size:14px;font-weight:500;display:flex}.dashboard-header{margin-bottom:32px}.dashboard-greeting{margin-bottom:4px;font-size:28px;font-weight:700}.dashboard-greeting span{background:var(--accent-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin-bottom:32px;display:grid}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);transition:var(--transition);box-shadow:var(--shadow-sm);align-items:center;gap:16px;padding:22px;display:flex;position:relative;overflow:hidden}.stat-card:before{content:"";background:var(--stat-accent,var(--accent-gradient));opacity:0;height:3px;transition:opacity .2s;position:absolute;top:0;left:0;right:0}.stat-card:hover:before{opacity:1}.stat-card:hover{border-color:var(--accent-primary);box-shadow:var(--shadow-md);transform:translateY(-2px)}.stat-card-1{--stat-accent:linear-gradient(90deg, #6366f1, #8b5cf6)}.stat-card-2{--stat-accent:linear-gradient(90deg, #10b981, #34d399)}.stat-card-3{--stat-accent:linear-gradient(90deg, #f59e0b, #fbbf24)}.stat-card-4{--stat-accent:linear-gradient(90deg, #ef4444, #f87171)}.stat-icon{border-radius:var(--radius-md);flex-shrink:0;justify-content:center;align-items:center;width:52px;height:52px;font-size:24px;display:flex}.stat-card-1 .stat-icon{background:#6366f11f}.stat-card-2 .stat-icon{background:#10b9811f}.stat-card-3 .stat-icon{background:#f59e0b1f}.stat-card-4 .stat-icon{background:#ef44441f}.stat-value{color:var(--text-primary);font-size:30px;font-weight:800;line-height:1;font-family:var(--font-space-grotesk), sans-serif}.stat-label{color:var(--text-secondary);margin-top:3px;font-size:13px;font-weight:500}.section-title{align-items:center;gap:8px;margin-bottom:16px;font-size:18px;font-weight:700;display:flex}.countdown-card{--countdown-accent:#10b981;--countdown-soft:#10b98133;border-radius:var(--radius-lg);border:1px solid var(--border);background:linear-gradient(180deg, color-mix(in srgb, var(--countdown-soft) 35%, transparent), transparent 52%), var(--bg-card);box-shadow:var(--shadow-sm);margin-bottom:28px;padding:22px}.countdown-safe{--countdown-accent:#10b981;--countdown-soft:#10b98147}.countdown-warning{--countdown-accent:#f59e0b;--countdown-soft:#f59e0b47}.countdown-danger{--countdown-accent:#ef4444;--countdown-soft:#ef44443d}.countdown-today{--countdown-accent:#ec4899;--countdown-soft:#ec48993d}.countdown-head{justify-content:space-between;align-items:flex-start;gap:10px;display:flex}.countdown-kicker{letter-spacing:.06em;text-transform:uppercase;color:var(--countdown-accent);margin-bottom:4px;font-size:12px;font-weight:700}.countdown-title{font-size:21px;font-weight:700;line-height:1.3}.countdown-hide-btn{border:1px solid var(--border);background:var(--bg-secondary);color:var(--text-secondary);border-radius:var(--radius-sm);cursor:pointer;white-space:nowrap;transition:var(--transition);padding:6px 10px;font-size:12px;font-weight:600}.countdown-hide-btn:hover{border-color:var(--countdown-accent);color:var(--countdown-accent)}.countdown-main{align-items:center;gap:16px;margin-top:14px;display:flex}.countdown-days{border-radius:var(--radius-md);background:color-mix(in srgb, var(--countdown-accent) 12%, transparent);min-width:86px;min-height:86px;color:var(--countdown-accent);font-size:40px;font-weight:800;line-height:1;font-family:var(--font-space-grotesk), sans-serif;border:1px solid color-mix(in srgb, var(--countdown-accent) 40%, transparent);justify-content:center;align-items:center;display:flex}.countdown-main-info{flex-direction:column;gap:5px;min-width:0;display:flex}.countdown-badge{border-radius:var(--radius-full);background:color-mix(in srgb, var(--countdown-accent) 18%, transparent);width:max-content;max-width:100%;color:var(--countdown-accent);padding:4px 10px;font-size:12px;font-weight:700;display:inline-flex}.countdown-date{color:var(--text-secondary);font-size:13px}.countdown-tone-text{color:var(--text-primary);font-size:14px;line-height:1.5}.countdown-milestone{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-input);margin-top:14px;padding:11px 13px}.countdown-milestone-title{color:var(--text-secondary);margin-bottom:3px;font-size:12px;font-weight:700}.countdown-milestone-content{color:var(--text-primary);font-size:14px;line-height:1.45}.countdown-milestone-muted{color:var(--text-secondary);font-size:13px;line-height:1.45}.countdown-actions{flex-wrap:wrap;gap:8px;margin-top:14px;display:flex}.countdown-empty,.countdown-collapsed{border-radius:var(--radius-lg);border:1px solid var(--border);background:var(--bg-card);box-shadow:var(--shadow-sm);margin-bottom:28px;padding:18px 20px}.countdown-empty{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;display:flex}.countdown-empty-title{margin-bottom:2px;font-size:15px;font-weight:700}.countdown-empty-desc{color:var(--text-secondary);font-size:13px;line-height:1.45}.countdown-collapsed{justify-content:space-between;align-items:center;gap:12px;display:flex}.countdown-collapsed-text{color:var(--text-secondary);font-size:14px}.quiz-new-wrapper{max-width:600px;margin:0 auto}.quiz-settings-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-md);padding:32px}.quiz-settings-card h2{margin-bottom:24px;font-size:22px}.settings-form{flex-direction:column;gap:20px;display:flex}.difficulty-grid{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.difficulty-btn{border-radius:var(--radius-md);border:1.5px solid var(--border);background:var(--bg-input);cursor:pointer;text-align:center;transition:var(--transition);font-family:var(--font-inter), sans-serif;padding:12px}.difficulty-btn:hover{border-color:var(--accent-primary);background:var(--accent-glow)}.difficulty-btn.selected{border-color:var(--accent-primary);background:var(--accent-glow);color:var(--accent-primary);font-weight:600}.difficulty-emoji{margin-bottom:4px;font-size:24px;display:block}.difficulty-label{color:var(--text-secondary);font-size:13px}.difficulty-btn.selected .difficulty-label{color:var(--accent-primary)}.count-grid{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.count-btn{border-radius:var(--radius-md);border:1.5px solid var(--border);background:var(--bg-input);cursor:pointer;text-align:center;transition:var(--transition);font-family:var(--font-inter), sans-serif;color:var(--text-secondary);padding:12px;font-size:16px;font-weight:600}.count-btn:hover{border-color:var(--accent-primary);background:var(--accent-glow);color:var(--accent-primary)}.count-btn.selected{border-color:var(--accent-primary);background:var(--accent-gradient);color:#fff}.quiz-wrapper{max-width:760px;margin:0 auto}.quiz-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:24px;display:flex}.quiz-meta{align-items:center;gap:12px;display:flex}.quiz-progress-bar{background:var(--border);border-radius:var(--radius-full);height:6px;margin-bottom:32px;overflow:hidden}.quiz-progress-fill{background:var(--accent-gradient);border-radius:var(--radius-full);height:100%;transition:width .4s}.question-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-md);margin-bottom:20px;padding:32px;animation:.3s slideIn}@keyframes slideIn{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.question-number{color:var(--accent-primary);text-transform:uppercase;letter-spacing:.08em;margin-bottom:12px;font-size:12px;font-weight:700}.question-text{color:var(--text-primary);margin-bottom:24px;font-size:18px;font-weight:600;line-height:1.5}.question-inline-image{vertical-align:middle;background:#fff;border-radius:3px;width:auto;max-width:min(100%,360px);height:auto;max-height:3.8em;margin:0 3px;display:inline-block}.question-inline-math{vertical-align:baseline;white-space:nowrap;max-width:100%;color:inherit;align-items:baseline;margin:0 2px;font-family:Cambria Math,STIX Two Math,Times New Roman,serif;font-size:1.04em;display:inline-flex}.question-stat-table-scroll{border:1px solid var(--border);border-radius:var(--radius-sm);-webkit-overflow-scrolling:touch;scrollbar-width:thin;scrollbar-color:#94a3b8 transparent;background:#fff;width:100%;max-width:100%;margin:12px 0;display:block;overflow-x:auto;box-shadow:0 6px 18px #0f172a14}.question-stat-table-scroll::-webkit-scrollbar{height:6px}.question-stat-table-scroll::-webkit-scrollbar-track{background:0 0}.question-stat-table-scroll::-webkit-scrollbar-thumb{background:#94a3b8;border-radius:999px}.question-stat-table{border-collapse:collapse;color:#111827;background:#fff;width:100%;font-size:14px;line-height:1.35}.question-stat-table th,.question-stat-table td{white-space:nowrap;border:1px solid #cbd5e1;padding:8px 12px}.question-stat-table th{text-align:left;background:#f1f5f9;font-weight:800}.question-stat-table td{text-align:center;font-weight:650}.question-stat-table th:first-child{z-index:1;position:sticky;left:0;box-shadow:1px 0 #cbd5e1}.thpt-figure--table{scrollbar-width:thin;scrollbar-color:#94a3b8 transparent;-webkit-overflow-scrolling:touch}.thpt-figure--table::-webkit-scrollbar{height:6px}.thpt-figure--table::-webkit-scrollbar-track{background:0 0}.thpt-figure--table::-webkit-scrollbar-thumb{background:#94a3b8;border-radius:999px}.thpt-figure--table .question-stat-table-scroll,.thpt-figure--table div[style*=overflow-x\:auto],.thpt-figure--table div[style*="overflow-x: auto"]{box-shadow:none!important;border:0!important;margin:0!important;overflow-x:visible!important}.thpt-figure--table table{width:max-content!important;min-width:min(100%,360px)!important;font-size:13px!important;line-height:1.3!important}.thpt-figure--table th,.thpt-figure--table td{white-space:nowrap!important;padding:7px 10px!important}.thpt-figure--table th:first-child{z-index:2;position:sticky;left:0;box-shadow:1px 0 #cbd5e1;background:#f1f5f9!important}.math-variation-table-scroll{-webkit-overflow-scrolling:touch;scrollbar-width:thin;scrollbar-color:#94a3b8 transparent;background:#fff;max-width:100%;margin:0;display:block;overflow-x:auto}.math-variation-table{border-collapse:collapse;color:#111827;background:#fff;width:max-content;min-width:440px;font-family:Cambria Math,Times New Roman,serif;font-size:15px;line-height:1.25}.math-variation-table th,.math-variation-table td{text-align:center;vertical-align:middle;white-space:nowrap;border:1px solid #94a3b8;min-width:54px;height:42px;padding:6px 10px}.math-variation-table th{z-index:1;min-width:48px;font-family:var(--font-sans), system-ui, sans-serif;background:#f8fafc;font-weight:800;position:sticky;left:0;box-shadow:1px 0 #94a3b8}@media (max-width:480px){.question-stat-table-scroll{border-radius:7px;margin:10px 0}.question-stat-table{font-size:13px}.question-stat-table th,.question-stat-table td{padding:7px 9px}.thpt-figure--table{margin-left:-2px!important;margin-right:-2px!important;padding:6px!important}.thpt-figure--table table{font-size:12.5px!important}.thpt-figure--table th,.thpt-figure--table td{padding:7px 9px!important}.math-variation-table{min-width:380px;font-size:13.5px}.math-variation-table th,.math-variation-table td{min-width:44px;height:38px;padding:6px 8px}}.question-math-frac{vertical-align:middle;flex-direction:column;justify-content:center;align-items:center;margin:0 .08em;line-height:1;display:inline-flex;transform:translateY(.18em)}.question-math-frac-num{text-align:center;border-bottom:1px solid;min-width:100%;padding:0 .14em .08em;display:block}.question-math-frac-den{text-align:center;padding:.08em .14em 0;display:block}.question-math-binom{vertical-align:middle;align-items:center;margin:0 .08em;display:inline-flex}.question-math-binom-stack{flex-direction:column;justify-content:center;align-items:center;padding:0 .08em;line-height:.92;display:inline-flex}.question-math-binom-paren{font-size:1.55em;line-height:.9}.question-math-script{vertical-align:baseline;align-items:center;display:inline-flex}.question-math-script-stack{flex-direction:column;justify-content:center;margin-left:.04em;line-height:.9;display:inline-flex}.question-math-script-stack sup,.question-math-script-stack sub{font-size:.72em;line-height:.9;position:static}.question-math-root:before{content:"√";margin-right:.03em;font-size:1.1em}.question-math-root-bar{border-top:1px solid;padding:.02em .08em 0}.question-math-overline,.question-math-vector{padding-top:.1em;display:inline-block;position:relative}.question-math-overline{text-decoration:overline}.question-math-vector:before{content:"→";text-align:center;font-size:.75em;position:absolute;top:-.45em;left:0;right:0}.question-math-cases,.question-math-array{vertical-align:middle;align-items:center;margin:0 .08em;display:inline-flex}.question-math-cases-brace{align-self:stretch;align-items:center;padding-right:.08em;font-size:2.15em;line-height:.9;display:inline-flex;transform:scaleX(.72)}.question-math-cases-rows,.question-math-array-rows{gap:.08em;line-height:1.18;display:inline-grid}.question-math-cases-row,.question-math-array-row{white-space:nowrap;align-items:baseline;gap:.36em;display:inline-flex}.question-math-array-cell{align-items:baseline;display:inline-flex}.question-code-intro,.question-code-outro{white-space:pre-wrap}.question-code-block{margin:12px 0;font-weight:400}.question-code-comparison{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:14px 0;font-weight:400;display:grid}.question-code-panel{border:1.5px solid var(--border);border-radius:var(--radius-md);background:var(--bg-input);min-width:0;font-weight:400;overflow:hidden}.question-code-panel--single{max-width:100%}.question-code-heading{border-bottom:1px solid var(--border);background:color-mix(in srgb, var(--accent-primary) 10%, var(--bg-card));color:var(--accent-primary);text-transform:uppercase;letter-spacing:.05em;padding:8px 12px;font-size:12px;font-weight:800}.question-code-panel pre{white-space:normal;margin:0;padding:10px 0;overflow-x:auto}.question-code-panel code{min-width:max-content;color:var(--text-primary);font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:13px;line-height:1.55;display:block}.question-code-line{grid-template-columns:3ch minmax(0,1fr);column-gap:10px;min-height:1.55em;padding:0 12px;display:grid}.question-code-line-no{border-right:1px solid var(--border);color:var(--text-muted);text-align:right;-webkit-user-select:none;user-select:none;padding-right:8px;font-size:12px;line-height:1.68}.question-code-line-text{white-space:pre}.flashcard-choice-review .question-code-block{width:100%;min-width:0;max-width:100%;margin:8px 0 0}.flashcard-choice-review,.flashcard-review-question{min-width:0;max-width:100%}.flashcard-review-question{overflow:hidden}.flashcard-review-question .question-code-block{margin-top:10px}.flashcard-choice-review .question-code-panel{min-width:0;max-width:100%}.flashcard-choice-review .question-code-panel pre{min-width:0;max-width:100%;overflow:auto}.flashcard-choice-review .question-code-panel code{width:100%;min-width:0}.flashcard-choice-review .question-code-line{min-width:0}.flashcard-choice-review .question-code-line-text{overflow-wrap:anywhere;white-space:pre-wrap;word-break:break-word;min-width:0}.flashcard-choice-answer{min-width:0}.flashcard-choice-answer .question-code-panel{background:var(--bg-input)}.flashcard-choice-answer .question-code-heading{padding:6px 10px;font-size:11px}.flashcard-choice-answer .question-code-panel pre{max-height:180px;overflow:auto}.flashcard-choice-answer .question-code-panel code{font-size:12px;line-height:1.5}.flashcard-choice-answer .question-code-line{grid-template-columns:2.75ch minmax(0,1fr);column-gap:8px;padding:0 10px}@media (max-width:640px){.question-code-comparison{grid-template-columns:1fr}.question-code-heading{padding:7px 10px}.question-code-line{grid-template-columns:2.5ch minmax(0,1fr);column-gap:8px;padding:0 10px}}.options-list{flex-direction:column;gap:10px;display:flex}.option-btn{border-radius:var(--radius-md);border:1.5px solid var(--border);background:var(--bg-input);text-align:left;cursor:pointer;width:100%;font-size:15px;font-family:var(--font-inter), sans-serif;color:var(--text-primary);transition:var(--transition);align-items:center;gap:12px;padding:14px 20px;line-height:1.4;display:flex}.option-btn:hover:not(:disabled){border-color:var(--accent-primary);background:var(--accent-glow)}.option-btn:disabled{cursor:default}.option-btn.selected{border-color:var(--accent-primary);background:var(--accent-glow)}.option-btn.correct{border-color:var(--success);background:var(--success-bg);color:var(--success);font-weight:600}.option-btn.wrong{border-color:var(--error);background:var(--error-bg);color:var(--error)}.option-letter{background:var(--border);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;font-size:13px;font-weight:700;display:flex}.option-btn.correct .option-letter{background:var(--success);color:#fff}.option-btn.wrong .option-letter{background:var(--error);color:#fff}.explanation-box{background:var(--bg-hover);border-radius:var(--radius-md);border-left:4px solid var(--accent-primary);color:var(--text-secondary);margin-top:16px;padding:16px;font-size:14px;line-height:1.6;animation:.3s fadeIn}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.explanation-box strong{color:var(--text-primary)}.solution-explanation{border:1px solid color-mix(in srgb, #f59e0b 28%, var(--quiz-control-border,var(--border)) 72%);background:linear-gradient(180deg, color-mix(in srgb, #f59e0b 9%, var(--quiz-control-bg,var(--bg-hover))) 0%, var(--quiz-control-bg,var(--bg-hover)) 100%);color:var(--text-secondary);border-radius:12px;margin-top:12px;padding:12px;animation:.3s fadeIn}.solution-explanation-head{align-items:center;gap:9px;margin-bottom:10px;display:flex}.solution-explanation-icon{background:color-mix(in srgb, #f59e0b 16%, var(--quiz-control-bg,var(--bg-card)));color:#d97706;border:1px solid #f59e0b57;border-radius:8px;flex:0 0 28px;place-items:center;width:28px;height:28px;display:inline-grid}.solution-explanation-title{color:var(--text-primary);font-size:13px;font-weight:800;line-height:1.25}.solution-explanation-steps{gap:8px;display:grid}.solution-step{border:1px solid color-mix(in srgb, var(--accent-primary) 14%, var(--quiz-control-border,var(--border)) 86%);background:color-mix(in srgb, var(--quiz-panel-bg,var(--bg-card)) 72%, transparent);border-radius:10px;grid-template-columns:auto minmax(0,1fr);align-items:flex-start;gap:10px;padding:9px 10px;display:grid}.solution-step-marker{min-width:9px;padding-top:1px;display:flex}.solution-step-marker span{background:color-mix(in srgb, var(--accent-primary) 12%, var(--quiz-control-bg,var(--bg-hover)));min-height:22px;color:var(--accent-primary);white-space:nowrap;border-radius:999px;align-items:center;padding:3px 8px;font-size:11px;font-weight:800;line-height:1.25;display:inline-flex}.solution-step-marker i{background:color-mix(in srgb, var(--accent-primary) 48%, var(--text-muted));border-radius:999px;width:7px;height:7px;margin:8px 1px 0;display:block}.solution-step-text{min-width:0;color:var(--text-secondary);overflow-wrap:break-word;font-size:13px;line-height:1.72}.solution-step-text .question-inline-math{margin-inline:1px}.solution-step--case{border-color:color-mix(in srgb, var(--accent-primary) 28%, var(--quiz-control-border,var(--border)) 72%);background:color-mix(in srgb, var(--accent-primary) 7%, var(--quiz-panel-bg,var(--bg-card)))}.solution-step--verdict{border-color:color-mix(in srgb, #38bdf8 24%, var(--quiz-control-border,var(--border)) 76%)}.solution-step--verdict .solution-step-marker span{background:color-mix(in srgb, #38bdf8 16%, var(--quiz-control-bg,var(--bg-hover)));color:#0369a1}.solution-step--answer,.solution-step--conclusion{border-color:color-mix(in srgb, #22c55e 32%, var(--quiz-control-border,var(--border)) 68%);background:color-mix(in srgb, #22c55e 8%, var(--quiz-panel-bg,var(--bg-card)))}.solution-step--answer .solution-step-marker span,.solution-step--conclusion .solution-step-marker span{background:color-mix(in srgb, #22c55e 16%, var(--quiz-control-bg,var(--bg-hover)));color:#15803d}@media (max-width:560px){.solution-explanation{border-radius:10px;padding:10px}.solution-step{grid-template-columns:minmax(0,1fr);gap:6px;padding:9px}.solution-step-marker{padding-top:0}.solution-step-marker i{display:none}.solution-step-text{font-size:12.5px;line-height:1.68}}.quiz-actions{justify-content:flex-end;gap:10px;display:flex}.result-wrapper{max-width:600px;margin:0 auto}.result-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);text-align:center;padding:40px}.result-score-circle{background:var(--accent-gradient);width:140px;height:140px;box-shadow:var(--shadow-accent);border-radius:50%;flex-direction:column;justify-content:center;align-items:center;margin:0 auto 24px;display:flex}.result-score-number{color:#fff;font-size:40px;font-weight:800;font-family:var(--font-space-grotesk), sans-serif;line-height:1}.result-score-label{color:#fffc;font-size:12px;font-weight:500}.result-title{margin-bottom:8px;font-size:24px}.result-subtitle{color:var(--text-secondary);margin-bottom:28px}.result-stats{grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:28px;display:grid}.result-stat{background:var(--bg-input);border-radius:var(--radius-md);padding:14px}.result-stat-value{color:var(--text-primary);font-size:22px;font-weight:700;font-family:var(--font-space-grotesk), sans-serif}.result-stat-label{color:var(--text-secondary);margin-top:2px;font-size:12px}.result-actions{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.review-list{flex-direction:column;gap:12px;margin-top:24px;display:flex}.review-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px}.review-item.correct{border-color:var(--success);border-left:4px solid var(--success)}.review-item.wrong{border-color:var(--error);border-left:4px solid var(--error)}.history-grid{flex-direction:column;gap:12px;display:flex}.history-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);cursor:pointer;transition:var(--transition);color:inherit;align-items:center;gap:16px;padding:20px;text-decoration:none;display:flex}.history-item:hover{border-color:var(--accent-primary);box-shadow:var(--shadow-md);transform:translate(4px)}.history-icon{border-radius:var(--radius-md);background:var(--accent-glow);flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;font-size:20px;display:flex}.history-topic{margin-bottom:4px;font-size:15px;font-weight:600}.history-meta{color:var(--text-secondary);flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;display:flex}.history-score{text-align:right;flex-shrink:0;margin-left:auto}.history-score-value{font-size:22px;font-weight:800;font-family:var(--font-space-grotesk), sans-serif}.history-score-value.high{color:var(--success)}.history-score-value.mid{color:var(--warning)}.history-score-value.low{color:var(--error)}.chat-wrapper{max-width:760px;height:calc(100vh - var(--navbar-height) - 48px);flex-direction:column;margin:0 auto;display:flex}.chat-header{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg) var(--radius-lg) 0 0;align-items:center;gap:12px;padding:16px 20px;display:flex}.chat-avatar{background:var(--accent-gradient);border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;font-size:20px;display:flex}.chat-messages{background:var(--bg-card);border-left:1px solid var(--border);border-right:1px solid var(--border);scroll-behavior:smooth;flex-direction:column;flex:1;gap:16px;padding:20px;display:flex;overflow-y:auto}.chat-messages::-webkit-scrollbar{width:4px}.chat-messages::-webkit-scrollbar-track{background:0 0}.chat-messages::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}.message{gap:10px;animation:.25s fadeIn;display:flex}.message.user{flex-direction:row-reverse}.message-avatar{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;font-size:16px;display:flex}.message-avatar.user{background:var(--accent-gradient)}.message-avatar.ai{background:var(--bg-input);border:1.5px solid var(--border)}.message-bubble{border-radius:var(--radius-lg);max-width:75%;padding:12px 16px;font-size:14px;line-height:1.6}.message.user .message-bubble{background:var(--accent-gradient);color:#fff;border-radius:var(--radius-lg) var(--radius-sm) var(--radius-lg) var(--radius-lg)}.message.ai .message-bubble{background:var(--bg-input);border:1px solid var(--border);color:var(--text-primary);border-radius:var(--radius-sm) var(--radius-lg) var(--radius-lg) var(--radius-lg)}.message-time{color:var(--text-muted);text-align:right;margin-top:4px;font-size:11px}.message.ai .message-time{text-align:left}.chat-input-area{background:var(--bg-card);border:1px solid var(--border);border-radius:0 0 var(--radius-lg) var(--radius-lg);border-top:1px solid var(--border);padding:16px}.chat-input-row{align-items:flex-end;gap:10px;display:flex}.chat-input{background:var(--bg-input);border:1.5px solid var(--border);border-radius:var(--radius-md);font-size:14px;font-family:var(--font-inter), sans-serif;color:var(--text-primary);resize:none;max-height:120px;transition:var(--transition);outline:none;flex:1;padding:12px 16px;line-height:1.5}.chat-input:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px var(--accent-glow)}.chat-suggestions{flex-wrap:wrap;gap:8px;margin-bottom:12px;display:flex}.suggestion-chip{border:1.5px solid var(--border);border-radius:var(--radius-full);font-size:12px;font-family:var(--font-inter), sans-serif;color:var(--text-secondary);background:var(--bg-input);cursor:pointer;transition:var(--transition);padding:6px 12px}.suggestion-chip:hover{border-color:var(--accent-primary);color:var(--accent-primary);background:var(--accent-glow)}.loading-spinner{border:2px solid var(--border);border-top-color:var(--accent-primary);border-radius:50%;width:20px;height:20px;animation:.7s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.loading-dots{align-items:center;gap:4px;padding:4px 0;display:flex}.loading-dots span{background:var(--text-muted);border-radius:50%;width:8px;height:8px;animation:1.2s infinite bounce}.loading-dots span:nth-child(2){animation-delay:.2s}.loading-dots span:nth-child(3){animation-delay:.4s}@keyframes bounce{0%,80%,to{opacity:.4;transform:scale(.6)}40%{opacity:1;transform:scale(1)}}.generating-wrapper{flex-direction:column;justify-content:center;align-items:center;gap:16px;min-height:300px;display:flex}.generating-icon{font-size:48px;animation:1.5s ease-in-out infinite pulse}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.8;transform:scale(1.1)}}.generating-text{color:var(--text-secondary);text-align:center;font-size:16px}.empty-state{text-align:center;color:var(--text-secondary);padding:60px 20px}.empty-icon{margin-bottom:12px;font-size:48px}.empty-title{color:var(--text-primary);margin-bottom:8px;font-size:18px;font-weight:600}.empty-desc{margin-bottom:20px;font-size:14px}.gradient-text{background:var(--accent-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.navbar-user-btn{border-radius:var(--radius-md);border:1.5px solid var(--border);background:var(--bg-input);cursor:pointer;color:var(--text-primary);align-items:center;gap:8px;padding:6px 12px;font-family:Inter,sans-serif;font-size:14px;font-weight:500;display:flex}.navbar-user-name{text-overflow:ellipsis;white-space:nowrap;max-width:100px;overflow:hidden}.navbar-hamburger{background:var(--bg-input);border:1.5px solid var(--border);border-radius:var(--radius-md);cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:40px;height:40px;padding:8px;display:none}.hamburger-line{background:var(--text-primary);border-radius:2px;width:20px;height:2px;transition:all .3s;display:block}.hamburger-line.open:first-child{transform:translateY(7px)rotate(45deg)}.hamburger-line.open:nth-child(2){opacity:0}.hamburger-line.open:nth-child(3){transform:translateY(-7px)rotate(-45deg)}.mobile-nav-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:200;opacity:0;pointer-events:none;background:#00000080;transition:opacity .3s;display:none;position:fixed;inset:0}.mobile-nav-overlay.open{opacity:1;pointer-events:auto}.mobile-nav-drawer{background:var(--bg-card);border-left:1px solid var(--border);z-index:201;flex-direction:column;width:280px;max-width:85vw;transition:transform .3s cubic-bezier(.4,0,.2,1);display:none;position:fixed;top:0;bottom:0;right:0;overflow-y:auto;transform:translate(100%);box-shadow:-8px 0 30px #0003}.mobile-nav-drawer.open{transform:translate(0)}.mobile-nav-user{border-bottom:1px solid var(--border);align-items:center;gap:12px;padding:24px 20px 20px;display:flex}.mobile-nav-links{flex-direction:column;flex:1;padding:12px 8px;display:flex}.mobile-nav-link{border-radius:var(--radius-md);color:var(--text-secondary);transition:var(--transition);align-items:center;gap:12px;padding:12px 16px;font-size:15px;font-weight:500;text-decoration:none;display:flex}.mobile-nav-link:hover,.mobile-nav-link.active{color:var(--accent-primary);background:var(--bg-hover)}.mobile-nav-link-icon{text-align:center;width:28px;font-size:20px}.mobile-nav-bottom{border-top:1px solid var(--border);margin-top:auto;padding:8px}@media (max-width:768px){.navbar-nav-desktop,.navbar-user-desktop{display:none!important}.navbar-hamburger{display:flex}.mobile-nav-overlay,.mobile-nav-drawer{display:block}.mobile-nav-drawer{display:flex}.navbar-logo-text{display:none}.container{padding:0 14px}.page-wrapper{padding-top:calc(var(--navbar-height) + 20px)}.site-footer-card{flex-direction:column;align-items:flex-start;gap:10px;padding:12px 14px}.site-footer-meta{justify-content:flex-start;gap:8px;width:100%}.site-footer-separator{display:none}.site-footer-subtitle{max-width:100%}.site-footer{padding-bottom:14px}.site-footer-copy{font-size:12px}.stats-grid{grid-template-columns:repeat(2,1fr);gap:10px}.stat-card{gap:12px;padding:16px}.stat-icon{width:44px;height:44px;font-size:20px}.stat-value{font-size:24px}.stat-label{font-size:12px}.quiz-settings-card{padding:20px}.question-card{padding:18px}.question-text{font-size:16px}.question-code-comparison{grid-template-columns:1fr}.option-btn{gap:10px;padding:12px 14px;font-size:14px}.result-card{padding:28px 20px}.result-stats{grid-template-columns:repeat(3,1fr);gap:8px}.result-stat{padding:10px 8px}.result-stat-value{font-size:18px}.auth-card{padding:28px 20px}.auth-inline-actions{flex-direction:column;align-items:stretch}.chat-wrapper{height:calc(100vh - var(--navbar-height) - 32px)}.message-bubble{max-width:90%}.history-item{gap:12px;padding:14px}.history-icon{width:38px;height:38px;font-size:18px}.history-score-value{font-size:18px}.section-title{font-size:16px}.dashboard-greeting{font-size:22px;line-height:1.4}.countdown-card,.countdown-empty,.countdown-collapsed{margin-bottom:20px;padding:16px}.countdown-title{font-size:18px}.countdown-main{gap:12px}.countdown-days{min-width:74px;min-height:74px;font-size:34px}}@media (max-width:480px){.stats-grid{grid-template-columns:1fr 1fr}.difficulty-grid,.count-grid{grid-template-columns:repeat(3,1fr);gap:8px}.result-stats{grid-template-columns:repeat(3,1fr)}.btn-lg{padding:12px 20px;font-size:15px}.dashboard-greeting{font-size:20px}.countdown-head{flex-wrap:wrap}.countdown-main{align-items:flex-start}.countdown-days{min-width:64px;min-height:64px;font-size:30px}.countdown-actions .btn{width:100%}.auth-card{border-radius:var(--radius-lg);padding:24px 16px}.auth-title{font-size:22px}.empty-state{padding:40px 16px}.explanation-box{padding:12px;font-size:13px}}.footer-link:before{content:"->"}.navbar-spacer{align-items:center;gap:16px;min-width:0;margin-left:auto;display:flex}.navbar-logo-icon{color:#fff;box-shadow:var(--shadow-accent)}.navbar-user-menu{position:relative}.navbar-avatar{color:#fff;background-position:50%;background-size:cover;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-weight:800;display:inline-flex}.navbar-avatar-sm{width:28px;height:28px;font-size:13px}.navbar-avatar-lg{width:42px;height:42px;font-size:16px}.navbar-menu-scrim{z-index:49;position:fixed;inset:0}.navbar-dropdown{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:50;min-width:210px;position:absolute;top:calc(100% + 8px);right:0;overflow:hidden}.navbar-dropdown-head{border-bottom:1px solid var(--border);padding:12px 14px}.navbar-dropdown-name{color:var(--text-primary);font-size:13px;font-weight:700}.navbar-dropdown-email{color:var(--text-muted);margin-top:2px;font-size:12px}.navbar-dropdown-item{cursor:pointer;text-align:left;width:100%;color:var(--text-primary);transition:var(--transition);background:0 0;border:none;align-items:center;gap:9px;padding:11px 14px;font-family:Inter,sans-serif;font-size:14px;font-weight:600;text-decoration:none;display:flex}.navbar-dropdown-item:hover{background:var(--bg-hover);color:var(--accent-primary)}.navbar-dropdown-item-warning{color:#d97706}.navbar-dropdown-item-danger{color:var(--error)}.theme-toggle-single{color:var(--accent-primary);background:linear-gradient(180deg, color-mix(in srgb, var(--accent-glow) 55%, transparent), transparent), var(--bg-input)}.theme-toggle-single:hover{color:var(--text-primary);box-shadow:0 0 0 3px var(--accent-glow)}.navbar-icon-toggle{border-radius:var(--radius-md);border:1.5px solid var(--border);background:linear-gradient(180deg, color-mix(in srgb, var(--accent-glow) 55%, transparent), transparent), var(--bg-input);width:40px;height:40px;color:var(--accent-primary);cursor:pointer;transition:var(--transition);justify-content:center;align-items:center}.navbar-icon-toggle:hover{background:var(--bg-hover);border-color:var(--accent-primary);color:var(--text-primary);box-shadow:0 0 0 3px var(--accent-glow)}.mobile-nav-user-name{font-size:15px;font-weight:800}.mobile-nav-user-email{color:var(--text-muted);word-break:break-word;font-size:12px}.mobile-nav-link-warning{color:#d97706;font-weight:700}.mobile-nav-link-danger{color:var(--error);cursor:pointer;background:0 0;border:none;width:100%;font-family:Inter,sans-serif}.auth-wrapper:before{content:"";background:linear-gradient(135deg, color-mix(in srgb, var(--accent-primary) 12%, transparent), transparent 36%), linear-gradient(315deg, color-mix(in srgb, var(--success) 10%, transparent), transparent 32%);pointer-events:none;position:absolute;inset:0}.auth-wrapper-split{grid-template-columns:minmax(0,.9fr) minmax(360px,440px);gap:34px;padding:40px 24px;display:grid}.auth-visual{z-index:1;justify-self:end;width:min(520px,100%);position:relative}.auth-visual-panel{border:1px solid var(--border);border-radius:var(--radius-xl);background:linear-gradient(145deg, color-mix(in srgb, var(--accent-primary) 22%, transparent), transparent 46%), linear-gradient(315deg, #10b98129, transparent 42%), var(--bg-card);min-height:420px;box-shadow:var(--shadow-lg);flex-direction:column;justify-content:flex-end;padding:38px;display:flex}.auth-visual-kicker{color:var(--accent-primary);text-transform:uppercase;letter-spacing:.08em;margin-bottom:10px;font-size:12px;font-weight:800}.auth-visual-title{font-family:var(--font-space-grotesk), sans-serif;max-width:440px;margin-bottom:24px;font-size:34px;font-weight:800;line-height:1.18}.auth-visual-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.auth-visual-grid span{border-radius:var(--radius-md);background:color-mix(in srgb, var(--bg-secondary) 82%, transparent);border:1px solid var(--border);color:var(--text-secondary);padding:10px 12px;font-size:13px;font-weight:700}.auth-bg-orb{display:none}.auth-brand-title{font-size:22px;font-weight:800;font-family:var(--font-space-grotesk), sans-serif}.auth-brand-subtitle{color:var(--text-muted);font-size:12px}.dashboard-header{grid-template-columns:minmax(0,1fr) minmax(280px,360px);align-items:end;gap:24px;margin-bottom:28px;display:grid}.dashboard-greeting{margin-bottom:8px;font-size:32px}.dashboard-greeting-icon{color:var(--accent-primary);vertical-align:-4px;margin-right:10px}.dashboard-subtitle{color:var(--text-secondary);max-width:680px;font-size:14px;line-height:1.6}.dashboard-rank-card{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--bg-card);box-shadow:var(--shadow-sm);padding:16px}.dashboard-rank-top{justify-content:space-between;align-items:center;gap:10px;margin-bottom:14px;display:flex}.dashboard-rank-badge,.dashboard-streak{border-radius:var(--radius-full);border:1px solid;align-items:center;gap:6px;min-height:30px;padding:5px 10px;font-size:12px;font-weight:800;display:inline-flex}.dashboard-streak{color:#ef4444}.dashboard-progress-track{background:var(--bg-input);border-radius:var(--radius-full);height:8px;overflow:hidden}.dashboard-progress-fill{border-radius:inherit;height:100%}.dashboard-header-classic{display:block}.dashboard-classic-rank-row{flex-wrap:wrap;gap:8px;margin:8px 0;display:flex}.dashboard-classic-rank-badge,.dashboard-classic-streak{border-radius:var(--radius-full);border:1px solid;align-items:center;gap:6px;min-height:30px;padding:4px 10px;font-size:13px;font-weight:800;display:inline-flex}.dashboard-classic-rank-badge{color:var(--text-primary)}.dashboard-classic-streak{color:#ff5e62;border-color:#f99}.dashboard-classic-progress{background:var(--bg-input);border-radius:var(--radius-full);width:100%;max-width:300px;height:8px;margin-top:10px;overflow:hidden}.section-title-link{color:var(--accent-primary);margin-left:auto;font-size:13px;font-weight:700;text-decoration:none}.section-title-link:hover{text-decoration:underline}.quick-actions-grid{grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px;margin-bottom:32px;display:grid}.quick-action-card{color:inherit;flex-direction:column;gap:12px;min-height:190px;padding:22px;text-decoration:none;display:flex}.quick-action-icon{border-radius:var(--radius-md);color:#fff;justify-content:center;align-items:center;width:48px;height:48px;display:flex;box-shadow:0 8px 20px #0d0f1a1f}.quick-action-icon-warm{background:linear-gradient(135deg,#f59e0b,#ef4444)}.quick-action-icon-primary{background:var(--accent-gradient)}.quick-action-icon-info{background:linear-gradient(135deg,#06b6d4,#3b82f6)}.quick-action-icon-success{background:linear-gradient(135deg,#10b981,#34d399)}.quick-action-card h2{font-size:16px}.quick-action-card p{color:var(--text-secondary);font-size:13px;line-height:1.55}.learning-insights-grid,.result-insights-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-bottom:28px;display:grid}.result-insights-grid{text-align:left}.learning-insight-card{padding:20px}.learning-insight-head{align-items:flex-start;gap:12px;margin-bottom:16px;display:flex}.learning-insight-head h2{margin-bottom:3px;font-size:16px}.learning-insight-head p,.learning-insight-note,.knowledge-gap-meta,.learning-insight-empty{color:var(--text-secondary);font-size:12px;line-height:1.45}.learning-insight-empty{border-radius:var(--radius-md);background:var(--bg-input);padding:14px}.learning-insight-icon{border-radius:var(--radius-md);color:#fff;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;display:inline-flex}.learning-insight-icon-score{background:linear-gradient(135deg,#0ea5e9,#10b981)}.learning-insight-icon-gap{background:linear-gradient(135deg,#f59e0b,#ef4444)}.learning-insight-icon-card{background:linear-gradient(135deg,#6366f1,#06b6d4)}.prediction-score-row{justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:10px;display:flex}.prediction-score-row span,.auto-card-count{font-family:var(--font-space-grotesk), sans-serif;color:var(--text-primary);font-size:38px;font-weight:800;line-height:1}.prediction-score-row small{border-radius:var(--radius-full);background:var(--bg-input);color:var(--text-secondary);padding:4px 8px;font-size:12px;font-weight:700}.prediction-track,.knowledge-gap-track{background:var(--bg-input);border-radius:var(--radius-full);height:9px;overflow:hidden}.prediction-fill{border-radius:inherit;background:linear-gradient(90deg,#0ea5e9,#10b981);height:100%}.knowledge-gap-list{flex-direction:column;gap:12px;display:flex}.knowledge-gap-row{min-width:0}.knowledge-gap-subject{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-input);overflow:hidden}.knowledge-gap-subject-summary{cursor:pointer;align-items:center;gap:10px;padding:12px;list-style:none;display:flex}.knowledge-gap-subject-summary::-webkit-details-marker{display:none}.knowledge-gap-subject-summary:focus-visible{outline:2px solid var(--accent-primary);outline-offset:2px}.knowledge-gap-subject-body{flex:1;min-width:0}.knowledge-gap-chevron{color:var(--text-muted);flex-shrink:0;transition:transform .2s}.knowledge-gap-subject[open] .knowledge-gap-chevron{transform:rotate(180deg)}.knowledge-gap-topic-list{border-top:1px solid var(--border);background:color-mix(in srgb, var(--bg-card) 58%, transparent);flex-direction:column;gap:10px;padding:10px 12px 12px;display:flex}.knowledge-gap-topic-row{border-left:2px solid var(--border);padding-left:10px}.knowledge-gap-topic-row .knowledge-gap-top{font-size:12px}.knowledge-gap-topic-row .knowledge-gap-track{height:7px}.knowledge-gap-top{justify-content:space-between;align-items:center;gap:12px;margin-bottom:5px;font-size:13px;display:flex}.knowledge-gap-top span{text-overflow:ellipsis;white-space:nowrap;min-width:0;color:var(--text-primary);font-weight:700;overflow:hidden}.knowledge-gap-top strong{color:var(--text-primary);font-size:13px}.knowledge-gap-fill{border-radius:inherit;min-width:6px;height:100%}.knowledge-gap-fill.weak{background:linear-gradient(90deg,#ef4444,#f97316)}.knowledge-gap-fill.medium{background:linear-gradient(90deg,#f59e0b,#eab308)}.knowledge-gap-fill.strong{background:linear-gradient(90deg,#10b981,#22c55e)}.knowledge-gap-meta{margin-top:4px}.auto-card-count{margin-top:8px}.history-content{flex:1;min-width:0}.history-score-ratio{color:var(--text-muted);font-size:12px}.tools-page-head{margin-bottom:28px}.tools-page-head h1{margin-bottom:8px;font-size:32px}.tools-page-head p{color:var(--text-secondary);max-width:660px;font-size:15px}.tools-grid{grid-template-columns:repeat(auto-fill,minmax(min(280px,100%),1fr));gap:14px;display:grid}.tool-card{min-height:260px;color:inherit;flex-direction:column;gap:18px;padding:22px;text-decoration:none;display:flex}.tool-card-head{justify-content:space-between;align-items:flex-start;gap:14px;display:flex}.tool-card-icon{border-radius:var(--radius-md);color:#fff;justify-content:center;align-items:center;width:56px;height:56px;display:flex;box-shadow:0 8px 20px #0d0f1a24}.tool-card-badge{border-radius:var(--radius-full);white-space:nowrap;padding:4px 9px;font-size:11px;font-weight:800}.tool-card-title{margin-bottom:7px;font-size:17px}.tool-card-desc{color:var(--text-secondary);font-size:13px;line-height:1.6}.tool-card-action{background:var(--bg-hover);border-radius:var(--radius-md);color:var(--accent-primary);justify-content:space-between;align-items:center;margin-top:auto;padding:10px 13px;font-size:13px;font-weight:800;display:flex}@media (max-width:900px){.auth-wrapper-split{padding:24px;display:flex}.auth-visual{display:none}.dashboard-header{grid-template-columns:1fr;align-items:stretch}}@media (max-width:768px){.navbar-spacer{gap:8px}.learning-insights-grid,.result-insights-grid{grid-template-columns:1fr}.navbar-hamburger{flex-direction:row}.dashboard-greeting,.tools-page-head h1{font-size:24px}.quick-action-card,.tool-card{min-height:auto}}@media (max-width:480px){.dashboard-rank-top{flex-direction:column;align-items:flex-start}.auth-visual-grid{grid-template-columns:1fr}}.error-page{min-height:calc(100vh - var(--navbar-height));justify-content:center;align-items:center;padding:2rem;display:flex}.error-page__content{text-align:center;max-width:480px}.error-page__icon{margin-bottom:1rem;font-size:4rem}.error-page__title{color:var(--text-primary);margin-bottom:.75rem;font-size:1.75rem;font-weight:700}.error-page__message{color:var(--text-secondary);margin-bottom:1.5rem;line-height:1.6}.loading-page{min-height:calc(100vh - var(--navbar-height));justify-content:center;align-items:center;display:flex}.loading-spinner{border:3px solid var(--border);border-top-color:var(--accent-primary);border-radius:50%;width:40px;height:40px;animation:.7s linear infinite spin}@keyframes fadeInUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}@keyframes shimmer{0%{background-position:-400px 0}to{background-position:400px 0}}@keyframes ripple{to{opacity:0;transform:scale(4)}}.page-wrapper{animation:.25s both fadeIn}.stat-card,.quick-action-card,.history-item,.card,.tool-card,.flashcard-item{animation:.35s both fadeInUp}.stat-card:first-child{animation-delay:50ms}.stat-card:nth-child(2){animation-delay:.1s}.stat-card:nth-child(3){animation-delay:.15s}.stat-card:nth-child(4){animation-delay:.2s}.quick-action-card:first-child{animation-delay:80ms}.quick-action-card:nth-child(2){animation-delay:.14s}.quick-action-card:nth-child(3){animation-delay:.2s}.quick-action-card:nth-child(4){animation-delay:.26s}.history-item:first-child{animation-delay:50ms}.history-item:nth-child(2){animation-delay:.1s}.history-item:nth-child(3){animation-delay:.15s}.history-item:nth-child(4){animation-delay:.2s}.history-item:nth-child(5){animation-delay:.25s}.dashboard-header,.section-title{animation:.3s both fadeInUp}@media (prefers-reduced-motion:reduce){.page-wrapper,.stat-card,.quick-action-card,.history-item,.card,.tool-card,.flashcard-item,.dashboard-header,.section-title{animation:none}}.btn{overflow:hidden}.btn-ripple{pointer-events:none;background:#fff6;border-radius:50%;width:8px;height:8px;animation:.5s linear ripple;position:absolute;transform:scale(0)}.skeleton{background:linear-gradient(90deg, var(--bg-hover) 25%, color-mix(in srgb, var(--bg-hover) 60%, var(--bg-card)) 50%, var(--bg-hover) 75%);border-radius:var(--radius-md);background-size:800px 100%;animation:1.4s linear infinite shimmer}.skeleton-text{border-radius:4px;height:14px}.skeleton-title{border-radius:6px;height:22px}.skeleton-card{border-radius:var(--radius-lg);height:100px}.skeleton-avatar{border-radius:50%;flex-shrink:0;width:40px;height:40px}.skeleton-stat-grid{grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px;display:grid}@media (max-width:768px){.skeleton-stat-grid{grid-template-columns:repeat(2,1fr)}}.skeleton-stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);align-items:center;gap:14px;padding:20px;display:flex}.skeleton-actions-grid{grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px;display:grid}@media (max-width:768px){.skeleton-actions-grid{grid-template-columns:repeat(2,1fr)}}.skeleton-action-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);flex-direction:column;gap:10px;padding:24px 20px;display:flex}.skeleton-history-list{flex-direction:column;gap:10px;display:flex}.skeleton-history-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);align-items:center;gap:14px;padding:16px;display:flex}.toast-container{z-index:9999;pointer-events:none;flex-direction:column;gap:10px;display:flex;position:fixed;bottom:24px;right:24px}.toast{border-radius:var(--radius-md);background:var(--bg-card);border:1px solid var(--border);box-shadow:var(--shadow-lg);color:var(--text-primary);pointer-events:all;align-items:center;gap:10px;min-width:240px;max-width:360px;padding:12px 16px;font-size:14px;font-weight:500;animation:.25s both fadeInUp;display:flex}.toast-success{border-left:3px solid var(--success)}.toast-error{border-left:3px solid var(--error)}.toast-warning{border-left:3px solid var(--warning)}.toast-info{border-left:3px solid var(--accent-primary)}.toast-icon{flex-shrink:0;font-size:16px}.toast-message{flex:1;line-height:1.4}.toast-close{cursor:pointer;color:var(--text-muted);background:0 0;border:none;flex-shrink:0;padding:0 2px;font-size:18px;line-height:1}.toast-close:hover{color:var(--text-primary)}@media (max-width:480px){.toast-container{bottom:16px;left:12px;right:12px}.toast{max-width:100%}}.confirm-overlay{z-index:10000;background:#00000080;justify-content:center;align-items:center;padding:16px;animation:.15s fadeIn;display:flex;position:fixed;inset:0}.confirm-modal{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);width:100%;max-width:400px;box-shadow:var(--shadow-lg);padding:28px 24px;animation:.2s scaleIn}.confirm-message{color:var(--text-primary);margin-bottom:20px;font-size:15px;line-height:1.6}.confirm-actions{justify-content:flex-end;gap:10px;display:flex}@media (max-width:480px){.question-card{border-radius:var(--radius-lg);padding:16px}.question-text{margin-bottom:18px;font-size:15px}.option-btn{gap:8px;padding:11px 12px;font-size:14px}.option-letter{flex-shrink:0;width:26px;height:26px;font-size:12px}.quiz-actions{padding:0}.quiz-actions .btn{width:100%;padding:14px;font-size:15px}.explanation-box{padding:12px;font-size:13px}.quiz-progress-bar{margin-bottom:20px}}.quiz-session-page,.thpt-exam-page,.thpt-setup-page,.thpt-result-page{background:0 0}.quiz-session-container{max-width:1220px}.quiz-session-shell{grid-template-columns:minmax(0,1fr) 320px;align-items:start;gap:22px;display:grid}.quiz-session-main,.thpt-exam-main{min-width:0}.quiz-session-hero,.thpt-exam-topbar,.thpt-setup-hero,.thpt-setup-card,.quiz-side-card,.thpt-answer-card{border-radius:8px}.quiz-session-hero{border:1px solid color-mix(in srgb, var(--border) 80%, #2563eb 20%);background:linear-gradient(135deg, color-mix(in srgb, var(--bg-card) 94%, #e0f2fe 6%), var(--bg-card));box-shadow:var(--shadow-md);padding:24px;position:relative;overflow:hidden}.quiz-session-kicker,.thpt-exam-kicker,.thpt-setup-kicker{color:#0f766e;text-transform:uppercase;letter-spacing:.04em;align-items:center;gap:8px;margin-bottom:10px;font-size:12px;font-weight:800;display:inline-flex}.quiz-session-hero h1,.thpt-exam-topbar h1,.thpt-setup-hero h1{margin:0;font-size:28px;line-height:1.2}.quiz-session-meta{flex-wrap:wrap;gap:8px;margin-top:14px;display:flex}.quiz-session-chip{background:color-mix(in srgb, var(--bg-input) 80%, #fff 20%);border:1px solid var(--border);min-height:30px;color:var(--text-secondary);border-radius:999px;align-items:center;padding:6px 10px;font-size:13px;font-weight:700;display:inline-flex}.quiz-session-progress,.thpt-main-progress{height:8px;margin:18px 0 22px}.quiz-question-panel{border-color:color-mix(in srgb, var(--border) 78%, #0f766e 22%);border-radius:8px}.quiz-question-head{justify-content:space-between;align-items:flex-start;gap:18px;display:flex}.quiz-question-status{border:1px solid var(--border);color:var(--text-muted);border-radius:999px;flex-shrink:0;align-items:center;gap:6px;padding:7px 10px;font-size:12px;font-weight:800;display:inline-flex}.quiz-question-status.done{color:#059669;background:#0596691f;border-color:#05966966}.quiz-session-actions{flex-wrap:wrap;justify-content:space-between;align-items:center}.quiz-side-panel,.thpt-answer-sidebar{top:calc(var(--navbar-height) + 18px);align-self:start;position:sticky}.quiz-side-card{border:1px solid var(--border);background:color-mix(in srgb, var(--bg-card) 96%, #eff6ff 4%);box-shadow:var(--shadow-md);padding:18px}.quiz-side-title,.thpt-answer-title{color:var(--text-primary);align-items:center;gap:8px;font-size:16px;font-weight:900;display:flex}.quiz-side-subject,.thpt-answer-subject{color:var(--text-secondary);margin-top:4px;font-size:13px;line-height:1.35}.quiz-side-stats,.thpt-sidebar-progress{grid-template-columns:1fr 1fr;gap:10px;margin:16px 0;display:grid}.quiz-side-stats>div,.thpt-sidebar-progress>div{background:var(--bg-input);border:1px solid var(--border);border-radius:8px;padding:12px}.quiz-side-stats span,.thpt-sidebar-progress span{color:var(--text-primary);font-family:var(--font-space-grotesk), sans-serif;font-size:22px;font-weight:900;line-height:1;display:block}.quiz-side-stats small,.thpt-sidebar-progress small,.quiz-time-tile small,.thpt-time-row small{color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em;margin-top:5px;font-size:11px;font-weight:700;display:block}.quiz-side-time-grid{gap:8px;display:grid}.quiz-time-tile,.thpt-time-row{border:1px solid var(--border);background:color-mix(in srgb, var(--bg-card) 88%, #f8fafc 12%);border-radius:8px;align-items:center;gap:10px;padding:12px;display:flex}.quiz-time-tile svg,.thpt-time-row svg{color:#2563eb;flex-shrink:0}.quiz-time-tile strong,.thpt-time-row strong{color:var(--text-primary);font-family:var(--font-space-grotesk), sans-serif;font-size:18px;font-weight:900;line-height:1.1;display:block}.quiz-side-progress{height:7px;margin:14px 0}.quiz-map-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:7px;display:grid}.quiz-map-cell,.thpt-map-cell{aspect-ratio:1;border:1px solid var(--border);background:var(--bg-card);color:var(--text-secondary);font-weight:900;font-family:var(--font-space-grotesk), sans-serif;cursor:pointer;transition:var(--transition);border-radius:8px}.quiz-map-cell.active,.thpt-map-cell:focus-visible{outline:2px solid var(--accent-primary);outline-offset:2px}.quiz-map-cell.correct,.thpt-map-cell.done{color:#fff;background:#059669;border-color:#059669}.quiz-map-cell.wrong{color:#fff;background:#dc2626;border-color:#dc2626}.quiz-map-cell.pending,.thpt-map-cell.pending{background:var(--bg-input)}.quiz-map-legend,.thpt-map-legend{color:var(--text-muted);flex-wrap:wrap;gap:10px;margin-top:14px;font-size:12px;font-weight:700;display:flex}.quiz-map-legend span,.thpt-map-legend span{align-items:center;gap:5px;display:inline-flex}.legend-dot{background:var(--border);border-radius:50%;width:9px;height:9px;display:inline-block}.legend-dot.correct{background:#059669}.legend-dot.wrong{background:#dc2626}.legend-dot.partial{background:#d97706}.legend-dot.pending{background:#cbd5e1}.thpt-setup-container,.thpt-exam-container{max-width:1280px}.thpt-setup-shell{grid-template-columns:360px minmax(0,1fr);align-items:start;gap:24px;display:grid}.thpt-setup-hero{top:calc(var(--navbar-height) + 22px);color:var(--text-primary);border:1px solid color-mix(in srgb, #0f766e 25%, var(--border));background:linear-gradient(160deg, color-mix(in srgb, var(--bg-card) 88%, #ecfeff 12%) 0%, color-mix(in srgb, var(--bg-card) 96%, var(--bg-primary) 4%) 48%, color-mix(in srgb, var(--bg-card) 90%, #fff7ed 10%) 100%);box-shadow:var(--shadow-md);padding:28px;position:sticky}.thpt-setup-hero h1{color:var(--text-primary);margin-bottom:10px}.thpt-setup-hero p{color:var(--text-secondary);margin:0;line-height:1.55}.thpt-setup-metrics{gap:10px;margin-top:22px;display:grid}.thpt-setup-metrics>div{background:color-mix(in srgb, var(--bg-card) 78%, transparent);border:1px solid color-mix(in srgb, var(--border) 82%, #0f766e 18%);border-radius:8px;grid-template-columns:22px 54px 1fr;align-items:center;gap:10px;padding:11px 12px;display:grid}.thpt-setup-metrics svg{color:#0f766e}.thpt-setup-metrics strong{font-family:var(--font-space-grotesk), sans-serif;font-size:24px;line-height:1}.thpt-setup-metrics span{color:var(--text-secondary);font-size:13px;font-weight:700}.thpt-setup-card{padding:24px}.thpt-form-error{margin-bottom:18px}.thpt-form-section{border:1px solid var(--border);background:color-mix(in srgb, var(--bg-card) 92%, var(--bg-input) 8%);border-radius:8px;padding:18px}.thpt-form-section+.thpt-form-section{margin-top:16px}.thpt-form-section-head{justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:16px;display:flex}.thpt-form-section-head span,.thpt-form-section-head small{color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;font-size:12px;font-weight:800;display:block}.thpt-form-section-head strong{color:var(--text-primary);margin-top:2px;font-size:18px;display:block}.thpt-form-time-pill{color:#0f766e;background:#0f766e1f;border:1px solid #0f766e4d;border-radius:999px;align-items:center;gap:6px;padding:7px 10px;font-size:12px;font-weight:900;display:inline-flex}.thpt-subject-group-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;margin:14px 0 8px;font-size:11px;font-weight:900}.thpt-subject-grid{grid-template-columns:repeat(auto-fill,minmax(116px,1fr));gap:9px;display:grid}.thpt-subject-grid--mandatory{grid-template-columns:repeat(2,minmax(0,1fr))}.thpt-subject-card{border:1px solid var(--border);background:var(--bg-card);min-height:54px;color:var(--text-primary);cursor:pointer;font-family:var(--font-inter), sans-serif;text-align:left;transition:var(--transition);border-radius:8px;align-items:center;gap:10px;padding:10px 12px;font-weight:800;display:flex}.thpt-subject-card.compact{min-height:50px;font-size:13px}.thpt-subject-card:hover,.thpt-source-tab:hover,.thpt-track-card:hover{border-color:#2563eb;transform:translateY(-1px)}.thpt-subject-card.selected{color:#0f766e;background:color-mix(in srgb, #0f766e 10%, var(--bg-card));border-color:#0f766e;box-shadow:0 8px 20px #0f766e1f}.thpt-subject-card.disabled,.thpt-subject-card:disabled{cursor:not-allowed;opacity:.55;color:var(--text-muted);background:var(--bg-input);transform:none}.thpt-subject-card.disabled:hover,.thpt-subject-card:disabled:hover{border-color:var(--border);transform:none}.thpt-subject-emoji{background:var(--bg-input);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;display:inline-flex}.thpt-source-tabs{flex-wrap:wrap;gap:8px;margin-bottom:14px;display:flex}.thpt-source-tab{border:1px solid var(--border);background:var(--bg-card);min-height:38px;color:var(--text-secondary);cursor:pointer;font-family:var(--font-inter), sans-serif;transition:var(--transition);border-radius:8px;align-items:center;gap:7px;padding:8px 12px;font-size:13px;font-weight:800;display:inline-flex}.thpt-source-tab.selected{color:#fff;background:#2563eb;border-color:#2563eb}.thpt-source-panel{gap:8px;display:grid}.thpt-source-panel textarea{resize:vertical}.thpt-topic-panel{gap:12px}.thpt-topic-overview{border:1px solid color-mix(in srgb, #0f766e 28%, var(--border));background:color-mix(in srgb, #0f766e 7%, var(--bg-card));border-radius:8px;justify-content:space-between;align-items:flex-start;gap:14px;padding:12px;display:flex}.thpt-topic-overview span,.thpt-topic-detail-head span{color:#0f766e;text-transform:uppercase;letter-spacing:.04em;margin-bottom:4px;font-size:11px;font-weight:900;display:block}.thpt-topic-overview strong,.thpt-topic-detail-head strong{color:var(--text-primary);line-height:1.45;display:block}.thpt-topic-overview b{color:#0f766e;background:#0f766e1f;border:1px solid #0f766e47;border-radius:999px;flex-shrink:0;padding:6px 9px;font-size:12px}.thpt-topic-grid{grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:10px;display:grid}.thpt-topic-option{border:1px solid var(--border);background:var(--bg-card);min-height:116px;color:var(--text-primary);cursor:pointer;text-align:left;transition:var(--transition);border-radius:8px;gap:6px;padding:12px;display:grid}.thpt-topic-option:hover{border-color:#0f766e;transform:translateY(-1px);box-shadow:0 10px 22px #0f766e1a}.thpt-topic-option.selected{background:color-mix(in srgb, #0f766e 10%, var(--bg-card));border-color:#0f766e;box-shadow:0 12px 26px #0f766e24}.thpt-topic-option span,.thpt-topic-option small{color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;font-size:11px;font-weight:900}.thpt-topic-option strong{color:var(--text-primary);font-size:14px;line-height:1.35}.thpt-topic-detail{border:1px solid color-mix(in srgb, #2563eb 28%, var(--border));background:color-mix(in srgb, #2563eb 6%, var(--bg-card));border-radius:8px;gap:10px;padding:14px;display:grid}.thpt-topic-detail-head{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.thpt-topic-detail-head small{color:var(--text-muted);flex-shrink:0;font-size:12px;font-weight:800}.thpt-topic-chip-row{flex-wrap:wrap;gap:7px;display:flex}.thpt-topic-chip-row span{border:1px solid color-mix(in srgb, #2563eb 22%, var(--border));background:color-mix(in srgb, var(--bg-card) 82%, transparent);min-height:28px;color:var(--text-secondary);border-radius:999px;align-items:center;padding:5px 9px;font-size:12px;font-weight:800;display:inline-flex}.thpt-input-hint,.thpt-loading-note{color:var(--text-muted);font-size:12px;line-height:1.45}.thpt-file-selected{border:1px solid color-mix(in srgb, #2563eb 42%, var(--border));background:color-mix(in srgb, #2563eb 8%, var(--bg-card));border-radius:8px;grid-template-columns:44px minmax(0,1fr) 38px;align-items:center;gap:12px;padding:12px;display:grid}.thpt-file-selected strong,.thpt-file-selected span{text-overflow:ellipsis;white-space:nowrap;min-width:0;display:block;overflow:hidden}.thpt-file-selected span{color:var(--text-muted);font-size:12px}.thpt-file-icon,.thpt-icon-button{border-radius:8px;justify-content:center;align-items:center;width:38px;height:38px;display:inline-flex}.thpt-file-icon{color:#2563eb;background:#2563eb1f}.thpt-icon-button{border:1px solid var(--border);background:var(--bg-card);color:var(--text-muted);cursor:pointer}.thpt-dropzone{text-align:center;border:1.5px dashed var(--border);background:var(--bg-input);min-height:150px;color:var(--text-secondary);cursor:pointer;transition:var(--transition);border-radius:8px;place-items:center;gap:7px;padding:24px;display:grid}.thpt-dropzone svg{color:#2563eb}.thpt-dropzone strong{color:var(--text-primary)}.thpt-dropzone span{color:var(--text-muted);font-size:12px}.thpt-dropzone.dragging,.thpt-dropzone:hover{background:color-mix(in srgb, #2563eb 10%, var(--bg-card));border-color:#2563eb}.thpt-generate-button{margin-top:18px}.thpt-loading-note{text-align:center;margin-top:10px}.thpt-warning-panel{color:var(--text-secondary);background:#d977061a;border:1px solid #d977068c;border-radius:8px;gap:10px;margin-top:16px;padding:14px;font-size:13px;line-height:1.5;display:grid}.thpt-warning-title,.thpt-warning-actions{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.thpt-warning-title{color:#d97706;font-weight:900}.thpt-exam-page{--thpt-section-sticky-top:calc(var(--navbar-height) + 72px);--thpt-question-scroll-margin:calc(var(--navbar-height) + 136px)}.thpt-exam-shell{grid-template-columns:minmax(0,1fr) 340px;align-items:start;gap:22px;display:grid}.thpt-exam-topbar{top:calc(var(--navbar-height) + 12px);z-index:40;border:1px solid color-mix(in srgb, var(--border) 72%, #0f766e 28%);background:linear-gradient(135deg, color-mix(in srgb, var(--bg-card) 94%, #ecfeff 6%), color-mix(in srgb, var(--bg-card) 90%, #fff7ed 10%));-webkit-backdrop-filter:blur(16px);justify-content:space-between;align-items:center;gap:18px;padding:18px;display:flex;position:sticky;box-shadow:0 14px 38px #0f172a14}.thpt-exam-topbar.warning{border-color:color-mix(in srgb, #dc2626 48%, var(--border))}.thpt-exam-topbar p{color:var(--text-secondary);margin:4px 0 0;font-size:13px;line-height:1.35}.thpt-topbar-metrics{flex-shrink:0;align-items:center;gap:10px;display:flex}.thpt-topbar-time{color:#2563eb;background:color-mix(in srgb, #2563eb 10%, var(--bg-card));border:1px solid color-mix(in srgb, #2563eb 24%, var(--border));min-width:104px;font-family:var(--font-space-grotesk), sans-serif;font-variant-numeric:tabular-nums;border-radius:8px;align-items:center;gap:8px;padding:8px 11px;font-size:18px;font-weight:900;display:inline-flex}.thpt-submit-top-button{background:linear-gradient(135deg,#dc2626,#f97316);border-radius:8px;min-height:40px;padding-inline:16px;box-shadow:0 10px 24px #dc262633}.thpt-exam-topbar.warning .thpt-topbar-time{color:#dc2626;background:color-mix(in srgb, #dc2626 10%, var(--bg-card));border-color:color-mix(in srgb, #dc2626 30%, var(--border))}.thpt-time-alert{color:#b91c1c;background:color-mix(in srgb, #dc2626 10%, var(--bg-card));border:1px solid color-mix(in srgb, #dc2626 25%, var(--border));border-radius:8px;align-items:center;gap:8px;margin:12px 0 0;padding:10px 12px;font-size:13px;font-weight:800;display:flex}.thpt-section-banner{color:#fff;box-shadow:var(--shadow-sm);border-radius:8px;gap:4px;margin-bottom:14px;padding:14px 16px;font-size:13px;line-height:1.4;display:grid}.thpt-section-banner--sticky{top:var(--thpt-section-sticky-top);z-index:35;position:sticky}.thpt-section-banner-title{align-items:center;gap:8px;font-size:15px;font-weight:900;display:flex}.thpt-section-banner--p1{background:linear-gradient(135deg,#2563eb,#0f766e)}.thpt-section-banner--p2{background:linear-gradient(135deg,#d97706,#dc2626)}.thpt-section-banner--p3{background:linear-gradient(135deg,#059669,#2563eb)}.thpt-section-note{opacity:.86;font-size:12px}.thpt-question-list{gap:14px;display:grid}.thpt-question-anchor{scroll-margin-top:var(--thpt-question-scroll-margin)}.thpt-question-card{border-left:4px solid #0000;border-radius:8px;padding:22px;box-shadow:0 10px 30px #0f172a0d}.thpt-question-card:hover{border-color:color-mix(in srgb, var(--border) 70%, #2563eb 30%);box-shadow:0 16px 36px #0f172a14}.thpt-question-card.answered{border-left-color:#059669}.thpt-question-card.partial{border-left-color:#d97706}.thpt-question-meta{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:12px;display:flex}.thpt-question-number{color:var(--text-secondary);font-size:13px;font-weight:900}.thpt-status-pill{border-radius:999px;align-items:center;gap:5px;margin-left:auto;padding:4px 8px;font-size:12px;font-weight:900;display:inline-flex}.thpt-status-pill.done{color:#059669;background:#0596691a}.thpt-status-pill.partial{color:#d97706;background:#d977061a}.thpt-question-text{color:var(--text-primary);margin-bottom:14px;font-size:15px;font-weight:700;line-height:1.65}.thpt-passage-card,.thpt-context-box,.thpt-tf-statement{border:1px solid var(--border);background:var(--bg-input);border-radius:8px}.thpt-passage-card{margin-bottom:12px;padding:14px 16px}.thpt-context-box{margin-bottom:14px;padding:12px 14px;font-weight:700;line-height:1.6}.thpt-options{gap:8px;display:grid}.thpt-option{border:1.5px solid var(--border);background:color-mix(in srgb, var(--bg-input) 80%, var(--bg-card) 20%);width:100%;min-height:46px;color:var(--text-primary);cursor:pointer;font-family:var(--font-inter), sans-serif;text-align:left;transition:var(--transition);border-radius:8px;grid-template-columns:32px minmax(0,1fr);align-items:center;gap:10px;padding:10px 13px;font-size:14px;line-height:1.45;display:grid}.thpt-option:hover{background:color-mix(in srgb, #2563eb 8%, var(--bg-card));border-color:#2563eb}.thpt-option.selected{color:#0f766e;background:color-mix(in srgb, #0f766e 10%, var(--bg-card));border-color:#0f766e;font-weight:800}.thpt-option-letter{background:var(--bg-card);border:1px solid var(--border);border-radius:50%;justify-content:center;align-items:center;width:30px;height:30px;font-weight:900;display:inline-flex}.thpt-option.selected .thpt-option-letter{color:#fff;background:#0f766e;border-color:#0f766e}.thpt-track-block{margin-bottom:14px}.thpt-track-title,.thpt-subsection-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.04em;margin-bottom:8px;font-size:12px;font-weight:900}.thpt-subsection-label.accent{color:#0f766e}.thpt-track-grid{grid-template-columns:1fr 1fr;gap:10px;display:grid}.thpt-track-card{border:1px solid var(--border);background:var(--bg-card);cursor:pointer;text-align:left;font-family:var(--font-inter), sans-serif;transition:var(--transition);border-radius:8px;padding:12px}.thpt-track-card div{color:var(--text-primary);font-weight:900}.thpt-track-card span{color:var(--text-muted);margin-top:4px;font-size:12px;line-height:1.35;display:block}.thpt-track-card.selected-green{background:color-mix(in srgb, #059669 10%, var(--bg-card));border-color:#059669}.thpt-track-card.selected-blue{background:color-mix(in srgb, #2563eb 10%, var(--bg-card));border-color:#2563eb}.thpt-tf-list{gap:10px;display:grid}.thpt-tf-row{grid-template-columns:28px minmax(0,1fr) auto;align-items:start;gap:10px;display:grid}.thpt-tf-label{color:#2563eb;padding-top:9px;font-weight:900}.thpt-tf-statement{color:var(--text-primary);padding:9px 11px;font-size:14px;line-height:1.5}.thpt-tf-actions{gap:6px;padding-top:4px;display:flex}.thpt-tf-button{border:1px solid var(--border);background:var(--bg-card);min-width:62px;min-height:34px;color:var(--text-secondary);cursor:pointer;font-family:var(--font-inter), sans-serif;border-radius:8px;padding:6px 12px;font-size:13px;font-weight:900}.thpt-tf-button.true.selected{color:#fff;background:#059669;border-color:#059669}.thpt-tf-button.false.selected{color:#fff;background:#dc2626;border-color:#dc2626}.thpt-short-answer{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.thpt-unit-label{color:var(--text-muted);font-size:14px;font-style:italic}.thpt-answer-card{border:1px solid color-mix(in srgb, var(--border) 70%, #2563eb 30%);background:linear-gradient(160deg, color-mix(in srgb, var(--bg-card) 92%, #ecfeff 8%) 0%, var(--bg-card) 58%, color-mix(in srgb, var(--bg-card) 91%, #fff7ed 9%) 100%);padding:18px;position:relative;overflow:hidden;box-shadow:0 18px 48px #0f172a1f}.thpt-answer-card:before{content:"";background:linear-gradient(90deg,#2563eb,#0f766e,#f97316);height:4px;position:absolute;inset:0 0 auto}.thpt-answer-card-head{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.thpt-answer-seal{background:color-mix(in srgb, #0f766e 10%, var(--bg-card));border:1px solid color-mix(in srgb, #0f766e 26%, var(--border));border-radius:999px;flex-shrink:0;justify-content:center;align-items:center;min-width:52px;height:34px;padding:0 10px;display:inline-flex;box-shadow:inset 0 1px #ffffff73}.thpt-answer-seal strong{color:#0f766e;font-family:var(--font-space-grotesk), sans-serif;font-size:12px;font-weight:900;line-height:1}.thpt-submit-primary{background:var(--accent-gradient);border-radius:8px;min-height:38px;box-shadow:0 10px 20px #6366f12e}.thpt-submit-primary:hover:not(:disabled),.thpt-submit-top-button:hover:not(:disabled){box-shadow:0 18px 34px #6366f13d}.thpt-sidebar-time{border:1px solid var(--border);background:color-mix(in srgb, var(--bg-input) 82%, var(--bg-card) 18%);border-radius:8px;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:10px 12px;margin-top:12px;padding:12px;display:grid}.thpt-time-row{background:0 0;border:0;align-items:center;gap:9px;padding:0;display:flex}.thpt-time-row strong{font-variant-numeric:tabular-nums;margin-top:2px;font-size:22px;display:block}.thpt-time-row small{color:var(--text-muted);font-size:11px;font-weight:800}.thpt-time-bar{background:color-mix(in srgb, var(--border) 80%, transparent);border-radius:999px;grid-column:1/-1;height:7px;margin:0;overflow:hidden}.thpt-time-bar span{border-radius:inherit;background:linear-gradient(90deg,#dc2626,#d97706,#059669);height:100%;transition:width .35s;display:block}.thpt-time-meta{color:var(--text-muted);grid-column:1/-1;justify-content:space-between;gap:10px;font-size:11px;font-weight:800;display:flex}.thpt-section-stat-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-bottom:16px;display:grid}.thpt-section-stat{border:1px solid color-mix(in srgb, var(--border) 80%, #2563eb 20%);background:color-mix(in srgb, var(--bg-input) 78%, var(--bg-card) 22%);border-radius:8px;padding:10px 8px}.thpt-section-stat strong,.thpt-section-stat span,.thpt-section-stat small{text-align:center;display:block}.thpt-section-stat strong{font-family:var(--font-space-grotesk), sans-serif;font-size:14px}.thpt-section-stat span{color:var(--text-primary);margin-top:4px;font-size:13px;font-weight:900}.thpt-section-stat small{color:var(--text-muted);margin-top:2px;font-size:10px;font-weight:800}.thpt-section-stat.indigo strong{color:#2563eb}.thpt-section-stat.amber strong{color:#d97706}.thpt-section-stat.emerald strong{color:#059669}.thpt-sidebar-tabs{background:var(--bg-input);border:1px solid var(--border);border-radius:999px;grid-template-columns:repeat(auto-fit,minmax(0,1fr));gap:3px;margin:12px 0 10px;padding:3px;display:grid}.thpt-sidebar-tab{min-height:32px;color:var(--text-secondary);cursor:pointer;font-family:var(--font-inter), sans-serif;transition:var(--transition);background:0 0;border:0;border-radius:999px;padding:6px 8px;font-size:12px;font-weight:900}.thpt-sidebar-tab:hover{color:#2563eb}.thpt-sidebar-tab.active{color:#fff;box-shadow:0 6px 14px #2563eb2e}.thpt-sidebar-tab.indigo.active{background:linear-gradient(135deg,#2563eb,#0f766e)}.thpt-sidebar-tab.amber.active{background:linear-gradient(135deg,#d97706,#dc2626)}.thpt-sidebar-tab.emerald.active{background:linear-gradient(135deg,#059669,#2563eb)}.thpt-active-section-card{color:#fff;border:1px solid #fff3;border-radius:8px;gap:8px;margin:10px 0;padding:12px;display:grid;box-shadow:0 10px 24px #0f172a1f}.thpt-active-section-card.indigo{background:linear-gradient(135deg,#2563eb,#0f766e)}.thpt-active-section-card.amber{background:linear-gradient(135deg,#d97706,#dc2626)}.thpt-active-section-card.emerald{background:linear-gradient(135deg,#059669,#2563eb)}.thpt-active-section-head{justify-content:space-between;align-items:center;gap:12px;display:flex}.thpt-active-section-head strong{color:#fff;font-size:14px;font-weight:950}.thpt-active-section-head b{color:#ffffffeb;font-size:12px;font-weight:900}.thpt-active-section-meter{background:#fff3;border-radius:999px;height:5px;overflow:hidden}.thpt-active-section-meter span{border-radius:inherit;background:#fff;height:100%;display:block}.thpt-active-section-card p{color:#ffffffd1;margin:0;font-size:11px;font-weight:800}.thpt-active-answer-grid{grid-template-columns:repeat(6,minmax(0,1fr));gap:6px;max-height:calc(100vh - 450px);margin:10px 0 0;padding-right:2px;display:grid;overflow:auto}.thpt-active-answer-chip{aspect-ratio:1;border:1px solid var(--border);background:var(--bg-card);width:100%;min-height:0;color:var(--text-primary);cursor:pointer;font-family:var(--font-inter), sans-serif;text-align:left;transition:var(--transition);border-radius:8px;place-items:center;gap:3px;padding:5px 3px;display:grid}.thpt-active-answer-chip:hover{border-color:#2563eb;transform:translateY(-1px)}.thpt-active-answer-chip.done{color:#047857;border-color:color-mix(in srgb, #059669 42%, var(--border));background:color-mix(in srgb, #059669 9%, var(--bg-card))}.thpt-active-answer-chip.partial{color:#b45309;border-color:color-mix(in srgb, #d97706 38%, var(--border));background:color-mix(in srgb, #d97706 8%, var(--bg-card))}.thpt-active-answer-number{color:var(--text-primary);font-size:14px;font-weight:950;line-height:1}.thpt-active-answer-value{text-overflow:ellipsis;white-space:nowrap;max-width:100%;color:var(--text-muted);font-size:9px;font-weight:900;line-height:1.15;overflow:hidden}.thpt-active-answer-chip.done .thpt-active-answer-value{color:#059669}.thpt-active-answer-chip.partial .thpt-active-answer-value{color:#d97706}.thpt-sidebar-map{gap:14px;max-height:calc(100vh - 470px);margin:16px 0;padding-right:2px;display:grid;overflow:auto}.thpt-map-group-title{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.04em;margin-bottom:8px;font-size:12px;font-weight:900}.thpt-map-grid{grid-template-columns:repeat(6,minmax(0,1fr));gap:6px;display:grid}.thpt-map-cell.partial{color:#fff;background:#d97706;border-color:#d97706}.thpt-map-cell{min-height:34px;box-shadow:inset 0 1px #ffffff73}.thpt-map-cell:hover{border-color:#2563eb;transform:translateY(-1px)}@media (max-width:1180px){.quiz-session-shell,.thpt-exam-shell{grid-template-columns:minmax(0,1fr)}.quiz-side-panel,.thpt-answer-sidebar{order:-1;position:static}.thpt-answer-card{grid-template-columns:1fr 1.2fr;gap:16px;display:grid}.thpt-sidebar-map,.thpt-sidebar-tabs,.thpt-active-section-card,.thpt-active-answer-grid,.thpt-map-legend,.thpt-answer-card>.btn{grid-column:1/-1}}@media (max-width:900px){.thpt-setup-shell{grid-template-columns:1fr}.thpt-setup-hero{position:static}.thpt-setup-metrics{grid-template-columns:repeat(3,minmax(0,1fr))}.thpt-setup-metrics>div{grid-template-columns:1fr;place-items:start}.thpt-answer-card{grid-template-columns:1fr}}@media (max-width:720px){.thpt-exam-page{--thpt-section-sticky-top:calc(var(--navbar-height) + 104px);--thpt-question-scroll-margin:calc(var(--navbar-height) + 168px)}.quiz-session-hero,.thpt-exam-topbar,.thpt-setup-card,.thpt-setup-hero,.quiz-side-card,.thpt-answer-card{padding:16px}.quiz-session-hero h1,.thpt-exam-topbar h1,.thpt-setup-hero h1{font-size:22px}.quiz-question-head,.thpt-exam-topbar,.thpt-form-section-head{flex-direction:column;align-items:stretch}.quiz-question-status,.thpt-status-pill{width:fit-content;margin-left:0}.quiz-map-grid{grid-template-columns:repeat(6,minmax(0,1fr))}.thpt-topbar-metrics,.thpt-track-grid,.thpt-subject-grid--mandatory,.thpt-setup-metrics{grid-template-columns:1fr}.thpt-topbar-metrics{width:100%;display:grid}.thpt-topbar-time{justify-content:center;width:100%}.thpt-tf-row{grid-template-columns:24px minmax(0,1fr)}.thpt-tf-actions{grid-column:2}.thpt-exam-identity{flex-direction:column;align-items:stretch;gap:6px}.thpt-exam-subject,.thpt-exam-source{width:fit-content;max-width:100%}}@media (max-width:480px){.quiz-session-container,.thpt-setup-container,.thpt-exam-container{padding:0 12px}.thpt-question-card{padding:16px}.thpt-option{grid-template-columns:28px minmax(0,1fr);padding:10px}.thpt-option-letter{width:26px;height:26px}.thpt-map-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.thpt-section-stat-grid,.quiz-side-stats,.thpt-sidebar-progress{grid-template-columns:1fr}}.quiz-session-shell{grid-template-columns:minmax(0,1fr) 292px;gap:16px}.thpt-exam-shell{grid-template-columns:minmax(0,1fr) 304px;gap:16px}.quiz-session-hero,.quiz-side-card,.thpt-exam-topbar,.thpt-answer-card,.thpt-question-card,.thpt-setup-card,.thpt-form-section{border-radius:8px;box-shadow:0 8px 22px #0f172a0e}.quiz-session-hero,.quiz-side-card,.thpt-answer-card{padding:14px}.quiz-question-panel,.thpt-question-card{padding:16px}.thpt-exam-topbar{background:var(--bg-card);padding:12px 14px;display:block;box-shadow:0 8px 22px #0f172a0f}.thpt-exam-topbar>div{min-width:0}.thpt-exam-identity{align-items:center;gap:8px;min-width:0;margin-bottom:8px;display:flex}.thpt-exam-identity--compact{margin-bottom:0}.thpt-exam-subject,.thpt-exam-source{border-radius:var(--radius-full);align-items:center;min-width:0;min-height:24px;font-size:12px;font-weight:800;line-height:1;display:inline-flex}.thpt-exam-subject{color:#0f766e;background:#0f766e1a;border:1px solid #0f766e3d;flex-shrink:0;padding:5px 9px}.thpt-exam-source{max-width:min(680px,66vw);color:var(--text-secondary);background:var(--bg-input);border:1px solid var(--border);text-overflow:ellipsis;white-space:nowrap;padding:5px 10px;overflow:hidden}.thpt-exam-topbar h1{font-size:19px}.thpt-exam-topbar p{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.quiz-session-hero h1,.thpt-exam-topbar h1,.thpt-setup-hero h1{font-size:22px}.quiz-session-kicker,.thpt-exam-kicker,.thpt-setup-kicker{margin-bottom:6px;font-size:11px}.quiz-session-chip{min-height:26px;padding:4px 8px;font-size:12px}.thpt-main-progress,.quiz-session-progress{height:6px;margin:12px 0 16px}.thpt-section-block{margin-bottom:20px}.thpt-section-banner{box-shadow:none;margin-bottom:10px;padding:10px 12px}.thpt-section-banner-title{font-size:14px}.thpt-question-list{gap:10px}.thpt-question-meta{gap:6px;margin-bottom:8px}.thpt-question-text{margin-bottom:10px;font-size:14px;line-height:1.55}.thpt-context-box,.thpt-passage-card{margin-bottom:10px;padding:10px 12px}.thpt-options,.thpt-tf-list{gap:7px}.thpt-option{gap:8px;min-height:40px;padding:8px 10px;font-size:13px}.thpt-option-letter{width:26px;height:26px;font-size:12px}.thpt-tf-row{gap:8px}.thpt-tf-statement{padding:8px 10px;font-size:13px}.thpt-tf-button{min-width:54px;min-height:30px;padding:5px 10px;font-size:12px}.thpt-answer-card{background:var(--bg-card)}.thpt-answer-card:before{height:3px}.thpt-answer-title{font-size:15px}.thpt-answer-subject{font-size:12px}.thpt-answer-seal{width:auto;min-width:50px;height:32px}.thpt-answer-seal strong{font-size:11px}.thpt-submit-primary{min-height:36px;margin-top:0;box-shadow:0 8px 18px #6366f129}.thpt-submit-top-button{min-height:34px;padding-inline:12px;box-shadow:0 8px 18px #dc262624}.thpt-sidebar-time{margin-top:10px;padding:10px}.thpt-time-row strong{font-size:20px}.thpt-time-bar{height:5px;margin:0}.thpt-sidebar-progress{gap:8px;margin:10px 0}.thpt-sidebar-progress>div,.quiz-side-stats>div{padding:9px}.thpt-sidebar-progress span,.quiz-side-stats span{font-size:18px}.thpt-section-stat-grid{gap:6px;margin-bottom:10px}.thpt-section-stat{padding:8px 6px}.thpt-section-stat span{font-size:12px}.thpt-section-stat small{font-size:9px}.thpt-sidebar-map{gap:10px;max-height:calc(100vh - 392px);margin:10px 0}.thpt-sidebar-tabs{margin:10px 0}.thpt-sidebar-tab{min-height:32px;padding:6px 8px;font-size:11px}.thpt-active-section-card{margin:10px 0;padding:12px}.thpt-active-section-head strong{font-size:15px}.thpt-active-section-card p{font-size:12px}.thpt-active-answer-grid{gap:7px;max-height:calc(100vh - 392px);margin:10px 0}.thpt-active-answer-chip{aspect-ratio:1;min-height:0;padding:5px 3px}.thpt-active-answer-number{font-size:13px}.thpt-map-group-title{margin-bottom:6px;font-size:11px}.thpt-map-grid{gap:5px}.thpt-map-cell{border-radius:7px;min-height:28px;font-size:12px}.thpt-map-legend,.quiz-map-legend{margin-top:10px;font-size:11px}.quiz-side-stats{gap:8px;margin:12px 0}.quiz-time-tile{padding:9px}.quiz-time-tile strong{font-size:16px}@media (max-width:1180px){.thpt-answer-card{gap:10px}}@media (max-width:720px){.quiz-session-hero,.thpt-exam-topbar,.thpt-setup-card,.thpt-setup-hero,.quiz-side-card,.thpt-answer-card{padding:12px}}.quiz-session-hero,.quiz-side-card,.thpt-exam-topbar,.thpt-answer-card,.thpt-question-card,.thpt-setup-card,.thpt-form-section{border-radius:var(--radius-lg)}.quiz-question-panel,.thpt-section-banner,.thpt-passage-card,.thpt-context-box,.thpt-tf-statement,.thpt-track-card,.thpt-option,.thpt-tf-button,.thpt-sidebar-time,.thpt-section-stat,.quiz-time-tile,.thpt-time-row,.thpt-file-selected,.thpt-dropzone,.thpt-source-tab,.thpt-subject-card{border-radius:var(--radius-md)}.thpt-answer-card:before{border-radius:var(--radius-lg) var(--radius-lg) 0 0}.thpt-answer-seal,.thpt-file-icon,.thpt-icon-button{border-radius:var(--radius-md)}.thpt-map-cell,.quiz-map-cell{border-radius:var(--radius-sm)}.thpt-exam-page{--thpt-exam-panel-radius:22px;--thpt-exam-panel-border:color-mix(in srgb, var(--border) 88%, #cbd5e1 12%);--thpt-exam-panel-bg:color-mix(in srgb, var(--bg-card) 98%, #f8fafc 2%);--thpt-exam-panel-shadow:0 18px 42px #0f172a13}.thpt-exam-main,.thpt-answer-card{border:1px solid var(--thpt-exam-panel-border);border-radius:var(--thpt-exam-panel-radius);background:var(--thpt-exam-panel-bg);box-shadow:var(--thpt-exam-panel-shadow)}.thpt-exam-main{min-width:0;padding:14px}.thpt-answer-card{padding:14px;overflow:hidden}.thpt-answer-card.warning{border-color:color-mix(in srgb, #dc2626 42%, var(--border))}.thpt-answer-card:before{display:none}.thpt-exam-topbar{border:0;border-bottom:1px solid var(--thpt-exam-panel-border);border-radius:calc(var(--thpt-exam-panel-radius) - 2px) calc(var(--thpt-exam-panel-radius) - 2px) 0 0;background:color-mix(in srgb, var(--bg-card) 94%, #f8fafc 6%);box-shadow:none;-webkit-backdrop-filter:none;margin:-2px -2px 12px;padding:12px 14px}.thpt-section-banner{border-radius:var(--radius-lg)}.thpt-question-card{border-color:var(--thpt-exam-panel-border);box-shadow:none}.thpt-question-card:hover{box-shadow:0 10px 24px #0f172a0e}@media (max-width:720px){.thpt-exam-page{--thpt-exam-panel-radius:18px}.thpt-exam-main,.thpt-answer-card{padding:12px}.thpt-exam-topbar{border-radius:calc(var(--thpt-exam-panel-radius) - 4px);border:1px solid var(--thpt-exam-panel-border);margin:0 0 10px}}.quiz-session-page,.thpt-exam-page,.thpt-setup-page,.thpt-result-page{--text-primary:#151827;--text-secondary:#4f5872;--text-muted:#98a1b5;--bg-card:#fff;--bg-input:#f3f5fb;--bg-hover:#eaedff;--border:#dfe4f3;--accent-primary:#6266f3;--accent-secondary:#8657ed;--accent-gradient:linear-gradient(135deg, #6266f3, #8657ed);--accent-glow:#6266f324;--quiz-logo-ink:#eef1ff;--quiz-logo-night:#f7f8ff;--quiz-logo-indigo:#e7eaff;--quiz-logo-violet:#ece8ff;--quiz-page-bg:#eef1ff;--quiz-page-bg-edge:#f7f8ff;--quiz-panel-bg:#fff;--quiz-panel-bg-soft:#f8f9ff;--quiz-control-bg:#f3f5fb;--quiz-control-hover:#eaedff;--quiz-panel-border:#dfe4f3;--quiz-control-border:#d8def0;--quiz-panel-shadow:0 14px 34px #5b60a01f;--quiz-action-muted:linear-gradient(135deg, #6266f3 0%, #8657ed 100%);--quiz-part-1:linear-gradient(135deg, #6266f3 0%, #8657ed 100%);--quiz-part-2:linear-gradient(135deg, #6a70f4 0%, #7d63f0 100%);--quiz-part-3:linear-gradient(135deg, #8657ed 0%, #6869e8 100%);--quiz-part-1-accent:#6266f3;--quiz-part-2-accent:#7468f2;--quiz-part-3-accent:#8657ed;background:linear-gradient(90deg, var(--quiz-page-bg) 0%, color-mix(in srgb, var(--quiz-page-bg) 74%, var(--quiz-logo-indigo) 26%) 66%, var(--quiz-page-bg-edge) 100%)}[data-theme=dark] .quiz-session-page,[data-theme=dark] .thpt-exam-page,[data-theme=dark] .thpt-setup-page,[data-theme=dark] .thpt-result-page{--text-primary:#f4f6ff;--text-secondary:#bac2e8;--text-muted:#828bad;--bg-card:#15183a;--bg-input:#111633;--bg-hover:#232067;--border:#2a2f63;--accent-primary:#818cf8;--accent-secondary:#a78bfa;--accent-gradient:linear-gradient(135deg, #818cf8, #a78bfa);--accent-glow:#818cf82e;--quiz-logo-ink:#0b1026;--quiz-logo-night:#17153b;--quiz-logo-indigo:#2e236c;--quiz-logo-violet:#433d8b;--quiz-page-bg:#0b1026;--quiz-page-bg-edge:#17153b;--quiz-panel-bg:#15183a;--quiz-panel-bg-soft:#1c1b4d;--quiz-control-bg:#111633;--quiz-control-hover:#232067;--quiz-panel-border:#383878;--quiz-control-border:#2a2f63;--quiz-panel-shadow:0 22px 64px #00000052;--quiz-action-muted:linear-gradient(135deg, #5653c6 0%, #6f5ccf 100%);--quiz-part-1:linear-gradient(135deg, #342d78 0%, #5146a3 100%);--quiz-part-2:linear-gradient(135deg, #28235f 0%, #433a8f 54%, #5749a3 100%);--quiz-part-3:linear-gradient(135deg, #46348a 0%, #322765 100%);--quiz-part-1-accent:#a5a7ff;--quiz-part-2-accent:#b5a5ff;--quiz-part-3-accent:#c3a8ff}:is(.quiz-session-page,.thpt-exam-page,.thpt-setup-page,.thpt-result-page) :is(.quiz-session-hero,.quiz-side-card,.question-card,.thpt-setup-card,.thpt-form-section,.thpt-exam-main,.thpt-exam-topbar,.thpt-answer-card,.thpt-question-card,.thpt-result-summary-card,.thpt-result-question-card,.learning-insight-card){border-color:var(--quiz-panel-border);background:var(--quiz-panel-bg);box-shadow:var(--quiz-panel-shadow)}.thpt-setup-page .thpt-setup-hero{border-color:var(--quiz-panel-border);background:linear-gradient(155deg, color-mix(in srgb, var(--quiz-panel-bg-soft) 82%, var(--accent-primary) 18%) 0%, var(--quiz-panel-bg) 52%, color-mix(in srgb, var(--quiz-panel-bg-soft) 82%, var(--accent-secondary) 18%) 100%);box-shadow:var(--quiz-panel-shadow)}.thpt-exam-page .thpt-exam-topbar{border-bottom-color:var(--quiz-panel-border);background:var(--quiz-panel-bg);box-shadow:none}:is(.quiz-session-page,.thpt-exam-page,.thpt-setup-page,.thpt-result-page) :is(.quiz-session-chip,.quiz-time-tile,.thpt-time-row,.thpt-sidebar-time,.thpt-section-stat,.thpt-sidebar-tabs,.thpt-active-answer-chip,.quiz-map-cell,.thpt-map-cell,.option-btn,.thpt-option,.thpt-option-letter,.thpt-passage-card,.thpt-context-box,.thpt-tf-statement,.thpt-track-card,.thpt-source-tab,.thpt-subject-card,.thpt-dropzone,.thpt-file-selected,.thpt-exam-source,.form-input,.explanation-box,.solution-explanation,.thpt-result-option-row,.thpt-result-explanation){border-color:var(--quiz-control-border);background:var(--quiz-control-bg)}:is(.quiz-session-page,.thpt-exam-page,.thpt-setup-page,.thpt-result-page) :is(.option-btn:hover:not(:disabled),.thpt-option:hover,.thpt-track-card:hover,.thpt-source-tab:hover,.thpt-subject-card:hover,.thpt-dropzone:hover,.quiz-map-cell:hover,.thpt-map-cell:hover,.thpt-active-answer-chip:hover){border-color:color-mix(in srgb, var(--accent-primary) 72%, var(--quiz-control-border) 28%);background:var(--quiz-control-hover)}.thpt-setup-page .thpt-setup-metrics>div{border-color:var(--quiz-control-border);background:color-mix(in srgb, var(--quiz-control-bg) 84%, transparent)}.thpt-exam-page .thpt-answer-seal{background:color-mix(in srgb, #0f766e 16%, var(--quiz-control-bg));border-color:color-mix(in srgb, #0f766e 38%, var(--quiz-control-border))}.thpt-exam-page .thpt-submit-primary,.thpt-exam-page .thpt-submit-top-button{background:var(--quiz-action-muted);box-shadow:0 12px 26px color-mix(in srgb, var(--accent-primary) 20%, transparent)}.thpt-exam-page .thpt-submit-primary:hover:not(:disabled),.thpt-exam-page .thpt-submit-top-button:hover:not(:disabled){box-shadow:0 16px 30px color-mix(in srgb, var(--accent-primary) 24%, transparent)}.thpt-exam-page .thpt-section-banner--p1,.thpt-exam-page .thpt-active-section-card.indigo{background:var(--quiz-part-1)}.thpt-exam-page .thpt-section-banner--p2,.thpt-exam-page .thpt-active-section-card.amber{background:var(--quiz-part-2)}.thpt-exam-page .thpt-section-banner--p3,.thpt-exam-page .thpt-active-section-card.emerald{background:var(--quiz-part-3)}.thpt-exam-page .thpt-sidebar-tab.indigo.active{background:var(--quiz-part-1)}.thpt-exam-page .thpt-sidebar-tab.amber.active{background:var(--quiz-part-2)}.thpt-exam-page .thpt-sidebar-tab.emerald.active{background:var(--quiz-part-3)}.thpt-exam-page .thpt-section-stat.indigo strong{color:var(--quiz-part-1-accent)}.thpt-exam-page .thpt-section-stat.amber strong{color:var(--quiz-part-2-accent)}.thpt-exam-page .thpt-section-stat.emerald strong{color:var(--quiz-part-3-accent)}.quiz-session-page .option-btn.selected{border-color:var(--accent-primary);background:color-mix(in srgb, var(--accent-primary) 14%, var(--quiz-control-bg))}.quiz-session-page .option-btn.correct,.quiz-session-page .quiz-map-cell.correct,.thpt-exam-page .thpt-map-cell.done{color:#fff;background:#059669;border-color:#059669}.quiz-session-page .option-btn.wrong,.quiz-session-page .quiz-map-cell.wrong{color:#fff;background:#dc2626;border-color:#dc2626}.quiz-session-page .option-btn.correct .option-letter{color:#fff;background:#059669;border-color:#059669}.quiz-session-page .option-btn.wrong .option-letter{color:#fff;background:#dc2626;border-color:#dc2626}.thpt-setup-page .thpt-source-tab.selected{color:#fff;background:#2563eb;border-color:#2563eb}.thpt-setup-page .thpt-subject-card.selected{color:#0f766e;background:color-mix(in srgb, #0f766e 14%, var(--quiz-control-bg));border-color:#0f766e;box-shadow:0 10px 24px #0f766e29}.thpt-setup-page .thpt-subject-card.disabled,.thpt-setup-page .thpt-subject-card:disabled,.thpt-setup-page .thpt-subject-card.disabled:hover,.thpt-setup-page .thpt-subject-card:disabled:hover{cursor:not-allowed;opacity:.55;color:var(--text-muted);border-color:var(--quiz-control-border);background:var(--quiz-control-bg);box-shadow:none;transform:none}.thpt-exam-page .thpt-option.selected{color:var(--accent-primary);border-color:var(--accent-primary);background:color-mix(in srgb, var(--accent-primary) 11%, var(--quiz-control-bg));font-weight:800}.thpt-exam-page .thpt-option.selected .thpt-option-letter{color:#fff;border-color:var(--accent-primary);background:var(--accent-primary)}.thpt-exam-page .thpt-track-card.selected-green{background:color-mix(in srgb, #059669 14%, var(--quiz-control-bg));border-color:#059669}.thpt-exam-page .thpt-track-card.selected-blue{background:color-mix(in srgb, #2563eb 14%, var(--quiz-control-bg));border-color:#2563eb}.thpt-exam-page .thpt-active-answer-chip.done{color:#047857;border-color:color-mix(in srgb, #059669 48%, var(--quiz-control-border));background:color-mix(in srgb, #059669 12%, var(--quiz-control-bg))}.thpt-exam-page .thpt-active-answer-chip.partial{color:#b45309;border-color:color-mix(in srgb, #d97706 48%, var(--quiz-control-border));background:color-mix(in srgb, #d97706 12%, var(--quiz-control-bg))}.thpt-exam-page .thpt-map-cell.partial{color:#fff;background:#d97706;border-color:#d97706}.thpt-sheet-card{padding:16px;display:block}.thpt-sheet-card-head{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.thpt-sheet-analyze-pill{border:1px solid color-mix(in srgb, var(--accent-primary) 34%, var(--quiz-control-border));border-radius:var(--radius-full);background:color-mix(in srgb, var(--accent-primary) 9%, var(--quiz-control-bg));min-height:38px;color:var(--accent-primary);flex-shrink:0;align-items:center;gap:7px;padding:8px 11px;font-size:12px;font-weight:900;display:inline-flex}.thpt-sheet-time{border-radius:var(--radius-lg);margin:14px 0}.thpt-sheet-analysis-card{border:1px solid var(--quiz-control-border);border-radius:var(--radius-lg);background:color-mix(in srgb, var(--quiz-control-bg) 72%, var(--quiz-panel-bg) 28%);gap:14px;margin:12px 0 14px;padding:14px;display:grid}.thpt-sheet-analysis-card .thpt-active-section-head strong{color:var(--text-primary);font-size:18px}.thpt-sheet-analysis-card .thpt-active-section-head b{color:var(--text-secondary);font-size:13px}.thpt-sheet-analysis-body{grid-template-columns:128px minmax(0,1fr);align-items:center;gap:16px;display:grid}.thpt-sheet-donut{aspect-ratio:1;background:conic-gradient(#10c979 var(--sheet-progress,0%), color-mix(in srgb, var(--quiz-control-border) 78%, transparent) 0);border-radius:50%;place-items:center;width:128px;display:grid;position:relative}.thpt-sheet-donut:after{content:"";border-radius:inherit;background:var(--quiz-panel-bg);position:absolute;inset:28px}.thpt-sheet-donut span{z-index:1;color:var(--text-primary);font-size:13px;font-weight:950;position:relative}.thpt-sheet-stat-list{gap:9px;min-width:0;display:grid}.thpt-sheet-stat-list>div:not(.thpt-sheet-score-pill){color:var(--text-primary);justify-content:space-between;align-items:center;gap:10px;font-size:13px;font-weight:800;display:flex}.thpt-sheet-stat-list span{color:var(--text-secondary)}.thpt-sheet-stat-list strong{color:var(--text-primary);font-size:14px}.thpt-sheet-score-pill{border:1px solid color-mix(in srgb, #10c979 50%, var(--quiz-control-border));border-radius:var(--radius-full);color:#10c979;justify-self:start;padding:7px 12px;font-size:13px;font-weight:950}.thpt-sheet-progress-card{border:1px solid var(--quiz-control-border);border-radius:var(--radius-md);background:color-mix(in srgb, var(--quiz-control-bg) 76%, var(--quiz-panel-bg) 24%);gap:9px;margin:10px 0 12px;padding:10px;display:grid}.thpt-sheet-progress-top,.thpt-sheet-progress-meta{justify-content:space-between;align-items:center;gap:10px;display:flex}.thpt-sheet-progress-top strong,.thpt-sheet-progress-top span{display:block}.thpt-sheet-progress-top strong{color:var(--text-primary);font-size:14px;font-weight:950;line-height:1.2}.thpt-sheet-progress-top span,.thpt-sheet-progress-meta{color:var(--text-secondary);font-size:11px;font-weight:800}.thpt-sheet-progress-top b{color:#10c979;font-family:var(--font-space-grotesk), sans-serif;font-size:20px;font-weight:950;line-height:1}.thpt-sheet-progress-track{border-radius:var(--radius-full);background:color-mix(in srgb, var(--quiz-control-border) 74%, transparent);height:7px;overflow:hidden}.thpt-sheet-progress-track span{border-radius:inherit;background:#10c979;height:100%;transition:width .25s;display:block}.thpt-sheet-progress-meta strong{color:var(--text-primary)}.thpt-result-compact-card{border:1px solid var(--quiz-control-border);border-radius:var(--radius-md);background:color-mix(in srgb, var(--quiz-control-bg) 76%, var(--quiz-panel-bg) 24%);gap:9px;margin:10px 0 12px;padding:10px;display:grid}.thpt-result-stat-row{color:var(--text-secondary);grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;font-size:10px;font-weight:900;display:grid}.thpt-result-stat-row span{border:1px solid var(--quiz-control-border);border-radius:var(--radius-sm);background:var(--quiz-control-bg);text-align:center;gap:2px;padding:7px 5px;display:grid}.thpt-result-stat-row strong{color:var(--text-primary);font-size:14px}.thpt-result-stat-row .correct{color:#059669}.thpt-result-stat-row .wrong{color:#ef4444}.thpt-sheet-question-grid{grid-template-columns:repeat(auto-fill,minmax(38px,1fr));gap:7px;max-height:clamp(190px,100vh - 420px,430px);padding:2px;display:grid;overflow:auto}.thpt-sheet-question-cell{aspect-ratio:1;border:1px solid var(--quiz-control-border);border-radius:var(--radius-sm);background:var(--quiz-control-bg);min-width:0;color:var(--text-secondary);cursor:pointer;font-family:var(--font-space-grotesk), sans-serif;transition:var(--transition);place-items:center;display:grid;position:relative}.thpt-sheet-question-cell:hover{border-color:var(--accent-primary);background:var(--quiz-control-hover);color:var(--accent-primary);transform:translateY(-1px)}.thpt-sheet-question-cell span{font-size:14px;font-weight:950;line-height:1}.thpt-sheet-question-cell strong{border-radius:var(--radius-sm);color:currentColor;min-width:16px;max-width:calc(100% - 8px);font-family:var(--font-inter), sans-serif;text-align:center;text-overflow:ellipsis;white-space:nowrap;background:#ffffff2e;padding:2px 4px;font-size:9px;font-weight:950;line-height:1;position:absolute;bottom:3px;right:4px;overflow:hidden}.thpt-sheet-question-cell.done{border-color:color-mix(in srgb, #10c979 58%, var(--quiz-control-border));background:color-mix(in srgb, #10c979 14%, var(--quiz-control-bg));color:#059669}.thpt-sheet-question-cell.correct{border-color:color-mix(in srgb, #10c979 64%, var(--quiz-control-border));color:#fff;background:#10c979}.thpt-sheet-question-cell.partial{border-color:color-mix(in srgb, #d97706 58%, var(--quiz-control-border));background:color-mix(in srgb, #d97706 14%, var(--quiz-control-bg));color:#b45309}.thpt-sheet-question-cell.wrong{color:#fff;background:#ef4444;border-color:#ef4444}.thpt-sheet-question-cell.pending{color:var(--text-muted)}.thpt-result-question-grid{max-height:clamp(170px,100vh - 500px,360px)}.thpt-answer-matrix{grid-template-columns:40px repeat(4,minmax(0,1fr));gap:9px 10px;max-height:calc(100vh - 590px);padding:4px 2px 2px;display:grid;overflow:auto}.thpt-answer-matrix>strong{color:var(--text-primary);text-align:center;font-size:13px;font-weight:950}.thpt-answer-matrix-row{display:contents}.thpt-answer-row-number{border:1px solid var(--quiz-control-border);border-radius:var(--radius-sm);background:var(--quiz-control-bg);width:34px;height:34px;color:var(--text-primary);cursor:pointer;font-family:var(--font-space-grotesk), sans-serif;transition:var(--transition);justify-content:center;justify-self:center;align-items:center;font-size:15px;font-weight:950;line-height:1;display:inline-flex}.thpt-answer-bubble{border:2px solid color-mix(in srgb, var(--quiz-control-border) 86%, #fff 14%);background:color-mix(in srgb, var(--quiz-panel-bg) 78%, transparent);color:#0000;cursor:pointer;width:34px;height:34px;transition:var(--transition);border-radius:50%;justify-content:center;justify-self:center;align-items:center;font-size:17px;font-weight:950;line-height:1;display:inline-flex}.thpt-answer-bubble:hover,.thpt-answer-row-number:hover{transform:translateY(-1px)}.thpt-answer-row-number:hover{border-color:var(--accent-primary);color:var(--accent-primary);background:var(--quiz-control-hover)}.thpt-answer-row-number.done{border-color:color-mix(in srgb, #10c979 42%, var(--quiz-control-border));color:#10c979;background:color-mix(in srgb, #10c979 10%, var(--quiz-control-bg))}.thpt-answer-row-number.partial{border-color:color-mix(in srgb, var(--quiz-part-2-accent) 44%, var(--quiz-control-border));color:var(--quiz-part-2-accent);background:color-mix(in srgb, var(--quiz-part-2-accent) 12%, var(--quiz-control-bg))}.thpt-answer-row-number.correct{color:#fff;background:#10c979;border-color:#10c979}.thpt-answer-row-number.wrong{color:#fff;background:#ef4444;border-color:#ef4444}.thpt-answer-bubble:hover{border-color:var(--accent-primary)}.thpt-answer-bubble.selected{color:#fff;background:#10c979;border-color:#10c979;box-shadow:0 8px 18px #10c97938}.thpt-answer-bubble.selected.false{border-color:var(--quiz-part-2-accent);background:var(--quiz-part-2-accent);color:#fff}.thpt-answer-bubble.correct{color:#10c979;border-color:#10c979}.thpt-answer-bubble.correct.selected{color:#fff;background:#10c979}.thpt-answer-bubble.wrong{color:#fff;background:#ef4444;border-color:#ef4444;box-shadow:0 8px 18px #ef444433}.thpt-sheet-short-list{gap:8px;max-height:calc(100vh - 590px);padding-right:2px;display:grid;overflow:auto}.thpt-sheet-short-item{border:1px solid var(--quiz-control-border);border-radius:var(--radius-md);background:var(--quiz-control-bg);color:var(--text-secondary);cursor:pointer;font-family:var(--font-inter), sans-serif;text-align:left;transition:var(--transition);justify-content:space-between;align-items:center;gap:10px;padding:10px 12px;font-size:12px;font-weight:800;display:flex}.thpt-sheet-short-item strong{max-width:130px;color:var(--text-muted);text-overflow:ellipsis;white-space:nowrap;font-size:12px;overflow:hidden}.thpt-sheet-short-item.done{border-color:color-mix(in srgb, #10c979 44%, var(--quiz-control-border))}.thpt-sheet-short-item.done strong{color:#10c979}.thpt-sheet-short-item.wrong{border-color:color-mix(in srgb, #ef4444 44%, var(--quiz-control-border))}.thpt-sheet-short-item.wrong strong{color:#ef4444}@media (max-width:1180px){.thpt-sheet-card{display:block}}@media (max-width:420px){.thpt-sheet-analysis-body{grid-template-columns:1fr}.thpt-sheet-donut{justify-self:center}}.thpt-result-container{max-width:1280px}.thpt-result-page{--thpt-result-panel-radius:22px;--thpt-result-panel-border:var(--quiz-panel-border);--thpt-result-panel-bg:var(--quiz-panel-bg);--thpt-result-panel-shadow:var(--quiz-panel-shadow)}.thpt-result-shell{grid-template-columns:minmax(0,1fr) 304px;gap:16px;margin:0 auto;display:grid}.thpt-result-main{min-width:0}.thpt-result-sidebar{top:calc(var(--navbar-height) + 18px);order:0;align-self:start;position:sticky}.thpt-result-side-card{padding:14px;display:block}.thpt-result-side-score{border:1px solid var(--quiz-control-border);border-radius:var(--radius-md);background:color-mix(in srgb, var(--quiz-control-bg) 82%, var(--quiz-panel-bg) 18%);margin:14px 0;padding:14px}.thpt-result-side-score .thpt-result-score{text-align:left;margin:2px 0 6px;font-size:clamp(42px,5vw,56px)}.thpt-result-score small{font-size:.52em;font-weight:850}.thpt-result-side-score-meta,.thpt-result-save-note{color:var(--text-secondary);font-size:12px;font-weight:700}.thpt-result-save-note{color:var(--accent-primary);margin-top:8px}.thpt-result-side-card .thpt-result-score-grid{grid-template-columns:1fr;gap:8px;margin-bottom:14px}.thpt-result-side-card .thpt-result-score-tile{text-align:left}.thpt-result-side-actions{gap:10px;display:grid}.thpt-result-side-actions .btn{width:100%}.thpt-result-summary-card{border:1px solid var(--thpt-result-panel-border);border-radius:var(--thpt-result-panel-radius);background:var(--thpt-result-panel-bg);box-shadow:var(--thpt-result-panel-shadow);text-align:center;margin-bottom:28px;padding:clamp(20px,4vw,34px);position:relative;overflow:hidden}.thpt-result-score{background:var(--accent-gradient);color:#0000;-webkit-text-fill-color:transparent;font-family:var(--font-space-grotesk), sans-serif;-webkit-background-clip:text;background-clip:text;margin-bottom:4px;font-size:clamp(48px,8vw,76px);font-weight:950;line-height:1}.thpt-result-score-grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-bottom:24px;display:grid}.thpt-result-score-tile{border:1px solid var(--quiz-control-border);border-radius:var(--radius-md);background:var(--quiz-control-bg);padding:12px 10px}.thpt-result-score-tile.part-1{background:color-mix(in srgb, var(--quiz-part-1-accent) 12%, var(--quiz-control-bg))}.thpt-result-score-tile.part-2{background:color-mix(in srgb, var(--quiz-part-2-accent) 12%, var(--quiz-control-bg))}.thpt-result-score-tile.part-3{background:color-mix(in srgb, var(--quiz-part-3-accent) 12%, var(--quiz-control-bg))}.thpt-result-score-label,.thpt-result-score-value{color:var(--part-color,var(--accent-primary))}.thpt-result-score-label{margin-bottom:6px;font-size:11px;font-weight:800;line-height:1.3}.thpt-result-score-value{font-size:22px;font-weight:900}.thpt-result-score-value span{font-size:14px;font-weight:600}.thpt-result-section-heading{border:1px solid color-mix(in srgb, #fff 14%, var(--quiz-panel-border));border-radius:var(--radius-lg);background:var(--quiz-part-1);color:#fff;box-shadow:0 12px 26px color-mix(in srgb, var(--accent-primary) 16%, transparent);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;padding:13px 16px;font-size:16px;font-weight:900;display:flex}.thpt-result-section-heading.part-1{background:var(--quiz-part-1)}.thpt-result-section-heading.part-2{background:var(--quiz-part-2)}.thpt-result-section-heading.part-3{background:var(--quiz-part-3)}.thpt-result-section-heading span{color:#ffffffd1;font-size:13px;font-weight:700}.thpt-result-track-note{border:1px solid var(--quiz-control-border);border-radius:var(--radius-md);background:color-mix(in srgb, var(--quiz-part-2-accent) 10%, var(--quiz-control-bg));color:var(--quiz-part-2-accent);margin-bottom:12px;padding:10px 14px;font-size:12px;font-weight:700}.thpt-result-review-list{flex-direction:column;gap:12px;display:flex}.thpt-result-question-card,.thpt-result-page .learning-insight-card{border:1px solid var(--thpt-result-panel-border);border-radius:var(--radius-lg);background:var(--thpt-result-panel-bg);box-shadow:none}.thpt-result-question-card:hover,.thpt-result-page .learning-insight-card:hover{border-color:color-mix(in srgb, var(--accent-primary) 42%, var(--thpt-result-panel-border) 58%);box-shadow:0 10px 24px color-mix(in srgb, var(--accent-primary) 10%, transparent)}.thpt-result-page .card{border-color:var(--quiz-panel-border)}.thpt-result-explanation{border-radius:var(--radius-md);color:var(--text-secondary);padding:8px 12px;font-size:12px;line-height:1.6}@media (max-width:980px){.thpt-result-shell{grid-template-columns:1fr}.thpt-result-sidebar{order:-1;position:static}}@media (max-width:1180px){.quiz-session-shell,.thpt-exam-shell,.thpt-result-shell{grid-template-columns:minmax(0,1fr)}.quiz-side-panel,.thpt-answer-sidebar,.thpt-result-sidebar{order:-1;width:100%;min-width:0;position:static}.quiz-side-card,.thpt-answer-card,.thpt-result-side-card{width:100%;max-width:100%}.thpt-sheet-question-grid{max-height:none}}@media (max-width:720px){.quiz-session-page,.thpt-exam-page,.thpt-setup-page,.thpt-result-page{background:var(--quiz-page-bg)}.quiz-session-shell,.thpt-exam-shell,.thpt-result-shell,.thpt-setup-shell{gap:12px}.quiz-session-container,.thpt-setup-container,.thpt-exam-container,.thpt-result-container{width:100%;padding-inline:12px}.quiz-session-main,.thpt-exam-main,.thpt-result-main,.thpt-setup-card,.thpt-question-card,.thpt-options,.thpt-option,.question-code-block,.question-code-panel,.question-code-panel pre,.question-code-panel code,.question-code-line,.question-code-line-text{min-width:0;max-width:100%}.quiz-session-hero,.quiz-side-card,.question-card,.thpt-setup-hero,.thpt-setup-card,.thpt-form-section,.thpt-exam-main,.thpt-exam-topbar,.thpt-answer-card,.thpt-question-card,.thpt-result-summary-card,.thpt-result-question-card,.learning-insight-card{box-shadow:0 8px 20px #5b60a01a}.thpt-exam-topbar,.thpt-section-banner--sticky{position:static}.thpt-question-anchor{scroll-margin-top:calc(var(--navbar-height) + 18px)}.thpt-exam-source,.thpt-answer-subject,.quiz-side-subject,.quiz-session-page .question-text,.thpt-exam-page .thpt-question-text,.thpt-exam-page .thpt-context-box,.thpt-exam-page .thpt-tf-statement,.thpt-exam-page .thpt-option,.thpt-exam-page .thpt-option>span:not(.thpt-option-letter),.thpt-exam-page .thpt-section-note,.thpt-exam-page .thpt-subsection-label,.thpt-exam-page .thpt-track-card,.thpt-exam-page .thpt-track-card div,.thpt-exam-page .thpt-track-card span,.thpt-result-track-note,.thpt-result-question-card{overflow-wrap:anywhere;word-break:break-word;white-space:normal}.thpt-sidebar-time,.thpt-sheet-time{grid-template-columns:minmax(0,1fr)}.thpt-submit-primary,.thpt-submit-top-button,.quiz-session-actions .btn{width:100%}.thpt-sheet-card-head,.thpt-answer-card-head,.thpt-sheet-progress-top,.thpt-sheet-progress-meta,.thpt-topic-overview,.thpt-topic-detail-head,.thpt-result-section-heading{flex-direction:column;align-items:flex-start}.thpt-sheet-analyze-pill,.thpt-answer-seal{align-self:flex-start}.thpt-sheet-question-grid{grid-template-columns:repeat(auto-fill,minmax(34px,1fr))}.thpt-answer-matrix{grid-template-columns:34px repeat(4,minmax(0,1fr));gap:7px;max-height:none;overflow:visible}.thpt-answer-row-number,.thpt-answer-bubble{width:30px;height:30px;font-size:13px}.thpt-sheet-short-list{max-height:none;overflow:visible}.thpt-sheet-short-item,.thpt-result-question-card>div,.thpt-result-question-card>div>div{min-width:0}.thpt-result-question-card>div[style*="display: flex"],.thpt-result-question-card>div>div[style*="display: flex"]{flex-wrap:wrap}.thpt-result-question-card span[style*="white-space: nowrap"],.thpt-result-question-card span[style*="margin-left: auto"]{white-space:normal!important;margin-left:0!important}.thpt-topic-grid{grid-template-columns:1fr}:is(.thpt-exam-page,.thpt-result-page) .question-code-block,:is(.thpt-exam-page,.thpt-result-page) .question-code-panel{width:100%;overflow:hidden}:is(.thpt-exam-page,.thpt-result-page) .question-code-panel pre{overscroll-behavior-inline:contain;overflow-x:auto}}@media (max-width:480px){.page-wrapper:is(.quiz-session-page,.thpt-exam-page,.thpt-setup-page,.thpt-result-page){padding-top:calc(var(--navbar-height) + 16px)}.quiz-session-hero,.quiz-side-card,.question-card,.thpt-setup-hero,.thpt-setup-card,.thpt-form-section,.thpt-exam-main,.thpt-exam-topbar,.thpt-answer-card,.thpt-question-card,.thpt-result-summary-card,.thpt-result-question-card,.learning-insight-card{border-radius:var(--radius-md)}.quiz-session-hero h1,.thpt-exam-topbar h1,.thpt-setup-hero h1{font-size:20px}.quiz-map-grid,.thpt-sheet-question-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.thpt-source-tabs{grid-template-columns:1fr;display:grid}.thpt-source-tab{justify-content:center;width:100%}.thpt-result-score-grid,.thpt-result-stat-row{grid-template-columns:1fr}}@media (max-width:520px){.thpt-exam-page .thpt-sheet-card,.thpt-result-page .thpt-sheet-card{border-radius:14px;padding:10px;box-shadow:0 8px 20px #5b60a014}.thpt-exam-page .thpt-sheet-card-head,.thpt-result-page .thpt-sheet-card-head{grid-template-columns:minmax(0,1fr);gap:2px;display:grid}.thpt-exam-page .thpt-answer-title,.thpt-result-page .thpt-answer-title{font-size:16px;line-height:1.2}.thpt-exam-page .thpt-answer-subject,.thpt-result-page .thpt-answer-subject{margin-top:2px;font-size:12px}.thpt-exam-page .thpt-sheet-analyze-pill,.thpt-result-page .thpt-sheet-analyze-pill{display:none}.thpt-exam-page .thpt-sheet-time{background:0 0;border-radius:12px;grid-template-columns:minmax(0,.74fr) minmax(0,1fr);gap:8px;margin:10px 0;padding:8px}.thpt-exam-page .thpt-time-row{gap:7px}.thpt-exam-page .thpt-time-row svg{width:16px;height:16px}.thpt-exam-page .thpt-time-row small{letter-spacing:.02em;margin-top:0;font-size:9px}.thpt-exam-page .thpt-time-row strong{margin-top:0;font-size:18px;line-height:1}.thpt-exam-page .thpt-submit-primary{min-height:34px;padding:8px 10px;font-size:13px}.thpt-exam-page .thpt-time-bar{height:5px}.thpt-exam-page .thpt-time-meta{font-size:10px}.thpt-exam-page .thpt-sidebar-tabs,.thpt-result-page .thpt-sidebar-tabs{margin:8px 0}.thpt-exam-page .thpt-sidebar-tab,.thpt-result-page .thpt-sidebar-tab{min-height:30px;font-size:11px}.thpt-exam-page .thpt-sheet-progress-card,.thpt-result-page .thpt-result-compact-card{background:0 0;border:0;gap:6px;margin:8px 0 10px;padding:0}.thpt-exam-page .thpt-sheet-progress-top,.thpt-exam-page .thpt-sheet-progress-meta,.thpt-result-page .thpt-sheet-progress-top{flex-direction:row;align-items:center}.thpt-exam-page .thpt-sheet-progress-top strong,.thpt-result-page .thpt-sheet-progress-top strong{font-size:13px}.thpt-exam-page .thpt-sheet-progress-top b,.thpt-result-page .thpt-sheet-progress-top b{font-size:17px}.thpt-exam-page .thpt-sheet-progress-meta{font-size:10px}.thpt-exam-page .thpt-sheet-question-grid,.thpt-result-page .thpt-sheet-question-grid{grid-template-columns:repeat(auto-fill,44px);grid-auto-rows:44px;justify-content:center;gap:8px;padding:0}.thpt-exam-page .thpt-sheet-question-cell,.thpt-result-page .thpt-sheet-question-cell{aspect-ratio:auto;border-radius:10px;width:44px;height:44px}.thpt-exam-page .thpt-sheet-question-cell span,.thpt-result-page .thpt-sheet-question-cell span{font-size:13px}.thpt-exam-page .thpt-sheet-question-cell strong,.thpt-result-page .thpt-sheet-question-cell strong{min-width:14px;padding:1px 3px;font-size:8px;bottom:3px;right:3px}.thpt-exam-page .thpt-track-grid{grid-template-columns:minmax(0,1fr)}.thpt-exam-page .thpt-tf-row{grid-template-columns:minmax(0,1fr);gap:7px}.thpt-exam-page .thpt-tf-label{padding-top:0}.thpt-exam-page .thpt-tf-actions{grid-column:auto;grid-template-columns:repeat(2,minmax(0,1fr));width:100%;padding-top:0;display:grid}.thpt-exam-page .thpt-tf-button{width:100%;min-width:0}.thpt-exam-page .thpt-section-banner-title{flex-wrap:wrap;min-width:0}.thpt-exam-page .thpt-section-banner-title svg{flex-shrink:0}:is(.thpt-exam-page,.thpt-result-page) .question-code-panel pre{overflow-x:hidden}:is(.thpt-exam-page,.thpt-result-page) .question-code-panel code{width:100%;min-width:0;font-size:12px;line-height:1.55}:is(.thpt-exam-page,.thpt-result-page) .question-code-line{grid-template-columns:2.25ch minmax(0,1fr);column-gap:7px;padding:0 9px}:is(.thpt-exam-page,.thpt-result-page) .question-code-line-no{padding-right:6px}:is(.thpt-exam-page,.thpt-result-page) .question-code-line-text{overflow-wrap:anywhere;white-space:pre-wrap;word-break:break-word;min-width:0}.thpt-result-question-card{padding:14px!important}.thpt-result-question-card>div>div[style*="display: flex"]{grid-template-columns:20px minmax(0,1fr);display:grid!important}.thpt-result-question-card>div>div[style*="display: flex"]>span:last-child{grid-column:2}}@media (max-width:720px){.thpt-setup-page{--thpt-mobile-panel-radius:14px}.thpt-setup-page .thpt-setup-container{padding-inline:8px}.thpt-setup-page .thpt-setup-shell{gap:10px}.thpt-setup-page .thpt-setup-hero,.thpt-setup-page .thpt-setup-card{border-radius:var(--thpt-mobile-panel-radius)}.thpt-setup-page .thpt-setup-hero{padding:16px}.thpt-setup-page .thpt-setup-kicker{letter-spacing:.05em;margin-bottom:6px;font-size:11px}.thpt-setup-page .thpt-setup-hero h1{margin-bottom:8px;font-size:24px;line-height:1.16}.thpt-setup-page .thpt-setup-hero p{font-size:15px;line-height:1.45}.thpt-setup-page .thpt-setup-metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:14px}.thpt-setup-page .thpt-setup-metrics>div{grid-template-rows:auto auto;grid-template-columns:20px minmax(0,1fr);align-items:center;gap:4px 8px;min-height:76px;padding:10px}.thpt-setup-page .thpt-setup-metrics svg{width:17px;height:17px}.thpt-setup-page .thpt-setup-metrics strong{min-width:0;font-size:24px}.thpt-setup-page .thpt-setup-metrics span{grid-column:1/-1;min-width:0;font-size:12px;line-height:1.25}.thpt-setup-page .thpt-setup-card{padding:12px}.thpt-setup-page .thpt-form-section{border-radius:var(--thpt-mobile-panel-radius);padding:12px}.thpt-setup-page .thpt-form-section-head{flex-direction:row;align-items:flex-start;margin-bottom:12px}.thpt-setup-page .thpt-form-section-head strong{font-size:16px}.thpt-setup-page .thpt-form-time-pill{flex-shrink:0;padding:6px 9px}.thpt-setup-page .thpt-subject-grid,.thpt-setup-page .thpt-subject-grid--mandatory{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.thpt-setup-page .thpt-subject-card{min-height:48px;padding:9px 10px}.thpt-setup-page .thpt-subject-card.compact{min-height:46px;font-size:12px}.thpt-setup-page .thpt-subject-emoji{width:26px;height:26px}.thpt-setup-page .thpt-topic-grid{overscroll-behavior-inline:contain;scroll-snap-type:x proximity;gap:8px;margin-inline:-12px;padding:0 12px 4px;display:flex;overflow-x:auto}.thpt-setup-page .thpt-topic-option{scroll-snap-align:start;flex:0 0 min(248px,78vw);min-height:104px}.thpt-setup-page .thpt-topic-overview,.thpt-setup-page .thpt-topic-detail{padding:11px}.thpt-setup-page .thpt-topic-overview,.thpt-setup-page .thpt-topic-detail-head{flex-direction:row;align-items:flex-start;gap:8px}.thpt-setup-page .thpt-topic-chip-row{gap:6px}.thpt-setup-page .thpt-topic-chip-row span{min-height:26px;font-size:11px}.thpt-setup-page .thpt-generate-button{white-space:normal;min-height:48px;margin-top:14px;padding-inline:14px}}@media (max-width:480px){.thpt-setup-page .thpt-setup-container{padding-inline:8px}.thpt-setup-page .thpt-setup-hero h1{font-size:22px}.thpt-setup-page .thpt-setup-hero p{font-size:14px}.thpt-setup-page .thpt-source-tabs{overscroll-behavior-inline:contain;flex-wrap:nowrap;gap:8px;margin-inline:-12px;padding:0 12px 4px;display:flex;overflow-x:auto}.thpt-setup-page .thpt-source-tab{white-space:nowrap;flex:none;width:auto;min-height:36px;padding-inline:11px}}@media (max-width:360px){.thpt-setup-page .thpt-topic-overview,.thpt-setup-page .thpt-topic-detail-head{flex-direction:column}.thpt-setup-page .thpt-setup-metrics>div{min-height:82px;padding:9px}.thpt-setup-page .thpt-setup-metrics strong{font-size:22px}.thpt-setup-page .thpt-subject-card,.thpt-setup-page .thpt-subject-card.compact{gap:7px;padding-inline:8px}}@media (max-width:720px){.thpt-result-page,.thpt-result-page .thpt-result-container,.thpt-result-page .thpt-result-shell,.thpt-result-page .thpt-result-main{max-width:100%;overflow-x:clip}.thpt-result-page .thpt-result-container{padding-inline:8px}.thpt-result-page .thpt-result-shell{gap:10px}.thpt-result-page .thpt-result-section-heading{border-radius:12px;gap:6px;margin-bottom:10px;padding:11px 12px;font-size:14px;line-height:1.3}.thpt-result-page .thpt-result-section-heading span{font-size:12px;line-height:1.25}.thpt-result-page .thpt-result-review-list{gap:10px}.thpt-result-page .thpt-result-question-card{max-width:100%;overflow:hidden}.thpt-result-page .thpt-result-question-card,.thpt-result-page .thpt-result-question-card>*,.thpt-result-page .solution-explanation,.thpt-result-page .solution-explanation-steps,.thpt-result-page .solution-step,.thpt-result-page .solution-step-text{min-width:0}.thpt-result-page .solution-explanation{max-width:100%;overflow:hidden}.thpt-result-page .solution-step{max-width:100%}.thpt-result-page .solution-step-text{overflow-wrap:anywhere;word-break:break-word;max-width:100%}.thpt-result-page .solution-step-marker span{white-space:normal;max-width:100%}.thpt-result-page .solution-step-text .question-inline-math,.thpt-result-page .thpt-result-question-card .question-inline-math{white-space:normal;overflow-wrap:anywhere;word-break:break-word;max-width:100%;display:inline}.thpt-result-page .solution-step-text .question-math-frac{font-size:.94em}}@media (max-width:480px){.thpt-result-page .thpt-result-question-card{padding:12px!important}.thpt-result-page .solution-explanation{padding:9px}.thpt-result-page .solution-step{padding:8px}.thpt-result-page .solution-step-text{font-size:12px;line-height:1.62}}.skip-link{z-index:10000;background:var(--accent-primary);color:#fff;border-radius:0 0 var(--radius-md) var(--radius-md);padding:10px 20px;font-size:14px;font-weight:600;text-decoration:none;transition:top .15s;position:absolute;top:-100%;left:16px}.skip-link:focus{outline-offset:2px;outline:2px solid #fff;top:0}