:root{--primary:#4f46e5;--primary-hover:#4338ca;--secondary:#10b981;--background:#f8fafc;--surface:#ffffffd9;--surface-border:#00000014;--text-main:#0f172a;--text-muted:#64748b;--danger:#ef4444;--success:#10b981;--glass-shadow:0 10px 40px -10px #00000014;--font-family:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);color:var(--text-main);-webkit-font-smoothing:antialiased;background:radial-gradient(circle at 0 0,#fff,#eff6ff);min-height:100vh;line-height:1.6}a{color:var(--primary);text-decoration:none;transition:color .2s}a:hover{color:var(--primary-hover)}button{cursor:pointer;font-family:var(--font-family);border:none;outline:none}.glass-panel{background:var(--surface);-webkit-backdrop-filter:blur(20px);border:1px solid var(--surface-border);box-shadow:var(--glass-shadow);border-radius:20px;padding:32px;transition:transform .3s,box-shadow .3s}.glass-panel:hover{transform:translateY(-4px);box-shadow:0 20px 40px -10px #4f46e526}.btn-primary{background:linear-gradient(135deg, var(--primary), var(--primary-hover));color:#fff;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-size:1rem;font-weight:600;transition:all .3s;display:inline-flex;box-shadow:0 4px 12px #4f46e540}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 20px #4f46e566}.btn-primary:active{transform:translateY(0)}.btn-secondary{color:var(--text-main);background:0 0;border:1px solid #cbd5e1;border-radius:12px;padding:12px 24px;font-weight:600;transition:all .2s}.btn-secondary:hover{background:#f1f5f9;border-color:#94a3b8}.btn-outline-primary{color:var(--primary);border:1px solid var(--primary);background:#eef2ff;border-radius:12px;justify-content:center;align-items:center;padding:12px 24px;font-weight:600;transition:all .2s;display:inline-flex}.btn-outline-primary:hover{background:var(--primary);color:#fff}.input-field{width:100%;color:var(--text-main);font-size:1rem;font-family:var(--font-family);background:#fff;border:1px solid #cbd5e1;border-radius:12px;padding:14px 16px;transition:all .2s;box-shadow:inset 0 2px 4px #00000005}.input-field:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 4px #4f46e51a}@keyframes fadeIn{0%{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:.5s cubic-bezier(.16,1,.3,1) forwards fadeIn}.progress-container{background:#e2e8f0;border-radius:5px;width:100%;height:10px;margin:16px 0;overflow:hidden}.progress-bar{background:linear-gradient(90deg, var(--primary), #818cf8);height:100%;transition:width .4s cubic-bezier(.16,1,.3,1)}.container{max-width:1200px;margin:0 auto;padding:24px}.grid{gap:24px;display:grid}.grid-cols-1{grid-template-columns:1fr}.grid-cols-2{grid-template-columns:repeat(2,1fr)}.grid-cols-3{grid-template-columns:repeat(3,1fr)}@media (width<=768px){.grid-cols-2{grid-template-columns:1fr}.grid-cols-3{grid-template-columns:repeat(2,1fr)}.grid-cols-3>:last-child{grid-column:span 2}.container{padding:16px}.glass-panel{border-radius:16px;padding:20px}.text-h1{font-size:2rem}.text-h2{font-size:1.5rem}.stat-card{padding:16px 12px}.stat-card svg{width:24px;height:24px}.stat-card .text-h3{margin-top:8px;font-size:.9rem}.stat-value{font-size:2rem}.btn-primary,.btn-secondary{justify-content:center;width:100%}}.sticky-action-bar{background:var(--surface);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--surface-border);z-index:10;border-radius:16px;justify-content:space-between;align-items:center;margin-top:16px;padding:16px;display:flex;position:sticky;bottom:16px;box-shadow:0 4px 12px #0000000d}.nav-grid{background:#fff6;border:1px solid #e2e8f0;border-radius:12px;flex-wrap:wrap;gap:8px;max-height:300px;padding:8px;display:flex;overflow-y:auto}.nav-grid::-webkit-scrollbar{width:6px}.nav-grid::-webkit-scrollbar-track{background:0 0}.nav-grid::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}@media (width<=768px){.nav-grid{max-height:180px}}.text-h1{color:#0f172a;letter-spacing:-.02em;margin-bottom:1rem;font-size:2.75rem;font-weight:800}.text-h2{color:#1e293b;letter-spacing:-.01em;margin-bottom:1rem;font-size:1.8rem;font-weight:700}.text-h3{color:#334155;margin-bottom:.5rem;font-size:1.25rem;font-weight:600}.text-muted{color:var(--text-muted)}.text-center{text-align:center}.text-right{text-align:right}.flex{display:flex}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-2{gap:8px}.gap-4{gap:16px}.gap-6{gap:24px}.mt-4{margin-top:16px}.mt-8{margin-top:32px}.mb-4{margin-bottom:16px}.mb-8{margin-bottom:32px}@media (width<=768px){.mb-8{margin-bottom:24px}.mt-8{margin-top:24px}.mobile-header-stack{flex-direction:column;align-items:flex-start;gap:16px}.mobile-header-stack button{width:100%}}.stat-card{text-align:center;flex-direction:column;justify-content:center;align-items:center;display:flex}.stat-value{color:var(--primary);letter-spacing:-.03em;margin-top:8px;font-size:3.5rem;font-weight:800}.option-btn{text-align:left;color:#1e293b;background:#fff;border:2px solid #e2e8f0;border-radius:16px;width:100%;margin-bottom:16px;padding:18px 24px;font-size:1.1rem;transition:all .2s cubic-bezier(.16,1,.3,1);display:block;box-shadow:0 2px 4px #00000005}.option-btn:hover{background:#f8fafc;border-color:#cbd5e1;transform:translate(6px);box-shadow:0 4px 12px #0000000d}.option-btn.selected{border-color:var(--primary);color:var(--primary-hover);background:#eef2ff;box-shadow:0 4px 20px #4f46e526}.option-btn.correct{border-color:var(--success);color:#047857;background:#ecfdf5}.option-btn.wrong{border-color:var(--danger);color:#b91c1c;background:#fef2f2}.badge{border-radius:9999px;padding:6px 14px;font-size:.85rem;font-weight:600;display:inline-block}.badge-primary{color:var(--primary);background:#eef2ff}.badge-success{color:#059669;background:#ecfdf5}.badge-danger{color:#dc2626;background:#fef2f2}.table-container{width:100%;overflow-x:auto}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid #e2e8f0;padding:16px 20px}th{color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;background:#f8fafc;font-size:.75rem;font-weight:600}tr:hover td{background:#f1f5f9}@media (width<=768px){.sticky-action-bar{padding:12px}.table-container table,.table-container thead,.table-container tbody,.table-container th,.table-container td,.table-container tr{display:block}.table-container thead tr{position:absolute;top:-9999px;left:-9999px}.table-container tr{background:#fff;border:1px solid #e2e8f0;border-radius:12px;margin-bottom:16px;padding:12px 16px;box-shadow:0 2px 8px #0000000a}.table-container td{border:none;border-bottom:1px solid #f1f5f9;justify-content:space-between;align-items:center;padding:10px 0;display:flex}.table-container td:last-child{border-bottom:none}.table-container td:before{content:attr(data-label);color:var(--text-muted);text-align:left;flex-shrink:0;margin-right:16px;font-size:.85rem;font-weight:600}.mobile-uppercase{text-transform:uppercase}}.auth-title{text-transform:uppercase;white-space:nowrap;font-size:1.2rem;font-weight:800;line-height:1.4;font-size:clamp(.9rem,4.5vw,1.4rem)!important}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;background:#00000080;justify-content:center;align-items:center;width:100%;height:100%;animation:.3s fadeIn;display:flex;position:fixed;top:0;left:0}.modal-content{text-align:center;background:#fff;border-radius:24px;width:90%;max-width:400px;padding:32px;animation:.3s cubic-bezier(.16,1,.3,1) scaleIn;box-shadow:0 25px 50px -12px #00000040}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.summary-grid-container{flex-wrap:wrap;justify-content:center;gap:6px;margin-top:16px;display:flex}.summary-square{color:#fff;cursor:pointer;border-radius:4px;justify-content:center;align-items:center;width:28px;height:28px;font-size:.75rem;font-weight:700;transition:transform .2s;display:flex}.summary-square:hover{transform:scale(1.1)}.summary-square.correct{background:var(--success)}.summary-square.wrong{background:var(--danger)}.summary-square.skipped{color:#475569;background:#cbd5e1}.fixed-footer-summary{background:var(--surface);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-top:1px solid var(--surface-border);z-index:100;width:100%;transition:transform .3s cubic-bezier(.16,1,.3,1);position:fixed;bottom:0;left:0;transform:translateY(100%);box-shadow:0 -10px 40px #0000001a}.fixed-footer-summary.open{transform:translateY(0)}.footer-toggle-btn{background:var(--surface);border:1px solid var(--surface-border);color:var(--primary);cursor:pointer;z-index:101;border-bottom:none;border-radius:12px 12px 0 0;align-items:center;gap:8px;padding:8px 24px;font-weight:700;display:flex;position:absolute;top:-42px;left:50%;transform:translate(-50%);box-shadow:0 -4px 12px #0000000d}.footer-content{max-width:800px;max-height:40vh;margin:0 auto;padding:16px 24px;overflow-y:auto}.modal-option-btn{width:100%;color:var(--text-main);background:#fff;border:2px solid #e2e8f0;border-radius:12px;justify-content:center;align-items:center;gap:12px;margin-bottom:12px;padding:16px;font-size:1.1rem;font-weight:600;transition:all .2s;display:flex}.modal-option-btn:hover{border-color:var(--primary);color:var(--primary);background:#f8fafc;transform:translateY(-2px)}