:root{--primary-color:#1e6cfd;--primary-hover:#1255d6;--primary-glow:#1e6cfd14;--bg-main:#f4f6fa;--card-bg:#fff;--card-border:#1e6cfd14;--card-border-hover:#1e6cfd33;--text-main:#0c2b5c;--text-secondary:#5e718d;--text-muted:#8b9bb4;--success-color:#10b981;--error-color:#ef4444;--border-radius:16px;--transition:all .3s cubic-bezier(.16, 1, .3, 1);--card-shadow:0 10px 30px -10px #1e6cfd0f, 0 1px 3px #1e6cfd05}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-main);color:var(--text-main);-webkit-font-smoothing:antialiased;min-height:100vh;font-family:Inter,Outfit,system-ui,sans-serif;position:relative;overflow-x:hidden}body:before{content:"";z-index:1;pointer-events:none;background-image:linear-gradient(#1e6cfd05 1px,#0000 1px),linear-gradient(90deg,#1e6cfd05 1px,#0000 1px);background-position:50%;background-size:60px 60px;position:absolute;inset:0}.app-container{z-index:10;flex-direction:column;gap:2rem;max-width:1280px;min-height:100vh;margin:0 auto;padding:2rem 1.5rem;display:flex;position:relative}.glass-card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--border-radius);box-shadow:var(--card-shadow);transition:var(--transition);padding:2rem}.glass-card:hover{border-color:var(--card-border-hover);transform:translateY(-2px);box-shadow:0 12px 35px -8px #1e6cfd1a,0 2px 5px #1e6cfd08}.app-header{border-bottom:1px solid var(--card-border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1.5rem;padding-bottom:1.5rem;display:flex}.brand-section{cursor:pointer;align-items:center;gap:12px;display:flex}.brand-icon-wrapper{background:var(--primary-glow);color:var(--primary-color);border:1px solid #1e6cfd1f;border-radius:12px;justify-content:center;align-items:center;padding:10px;display:flex}.brand-title{letter-spacing:-.02em;font-size:1.5rem;font-weight:800}.text-gradient{background:linear-gradient(135deg, var(--primary-color), #00b0ff);-webkit-text-fill-color:transparent;-webkit-background-clip:text}.header-actions{align-items:center;gap:1rem;display:flex}.btn-primary{background:linear-gradient(135deg, var(--primary-color), #3b82f6);color:#fff;cursor:pointer;transition:var(--transition);border:none;border-radius:12px;align-items:center;gap:8px;padding:.75rem 1.5rem;font-size:.92rem;font-weight:700;text-decoration:none;display:inline-flex;box-shadow:0 4px 15px #1e6cfd26}.btn-primary:hover:not(:disabled){background:linear-gradient(135deg, var(--primary-hover), #2563eb);transform:translateY(-2px);box-shadow:0 6px 20px #1e6cfd40}.btn-primary:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}.btn-secondary{color:var(--primary-color);cursor:pointer;transition:var(--transition);background:#1e6cfd0d;border:1px solid #1e6cfd1f;border-radius:12px;align-items:center;gap:8px;padding:.75rem 1.5rem;font-size:.92rem;font-weight:600;text-decoration:none;display:inline-flex}.btn-secondary:hover:not(:disabled){background:#1e6cfd14;border-color:#1e6cfd33;transform:translateY(-1px)}.hero-banner{background:linear-gradient(135deg,#1e6cfd0a,#00b0ff0a);border:1px solid #1e6cfd1a;align-items:center;gap:2rem;padding:2.5rem;display:flex}.hero-content{flex:1}.hero-title{margin-bottom:.75rem;font-size:2.2rem;font-weight:800;line-height:1.2}.hero-desc{color:var(--text-secondary);max-width:800px;font-size:1.05rem;line-height:1.6}.stats-row{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.5rem;display:grid}.stat-card{align-items:center;gap:1.25rem;padding:1.5rem;display:flex}.stat-icon{color:var(--primary-color);background:#1e6cfd0a;border:1px solid #1e6cfd14;border-radius:12px;justify-content:center;align-items:center;padding:12px;display:flex}.stat-info h4{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;font-size:.82rem}.stat-info .stat-value{margin-top:2px;font-size:1.5rem;font-weight:800}.main-grid{grid-template-columns:320px 1fr;gap:2rem;display:grid}@media (width<=992px){.main-grid{grid-template-columns:1fr}}.leaderboard-panel{flex-direction:column;gap:1.25rem;height:fit-content;display:flex}.leaderboard-title{align-items:center;gap:8px;font-size:1.15rem;font-weight:700;display:flex}.leaderboard-list{flex-direction:column;gap:.75rem;display:flex}.leaderboard-item{transition:var(--transition);background:#1e6cfd04;border:1px solid #1e6cfd0f;border-radius:12px;justify-content:space-between;align-items:center;padding:10px 14px;display:flex}.leaderboard-item:hover{background:#1e6cfd09;border-color:#1e6cfd26}.leaderboard-user{align-items:center;gap:12px;display:flex}.rank-badge{width:24px;height:24px;color:var(--text-main);background:#1e6cfd0f;border-radius:50%;justify-content:center;align-items:center;font-size:.8rem;font-weight:800;display:flex}.rank-badge.rank-1{color:#0c2b5c;background:gold;box-shadow:0 0 10px #ffd70040}.rank-badge.rank-2{color:#0c2b5c;background:#e2e8f0}.rank-badge.rank-3{color:#0c2b5c;background:#fed7aa}.leaderboard-name{font-size:.88rem;font-weight:600}.leaderboard-score{color:var(--primary-color);font-size:.9rem;font-weight:700}.subjects-section{flex-direction:column;gap:1.5rem;display:flex}.section-title-bar{justify-content:space-between;align-items:center;display:flex}.section-title-bar h2{font-size:1.5rem;font-weight:800}.subjects-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1.25rem;display:grid}.subject-card{cursor:pointer;flex-direction:column;gap:1rem;padding:1.5rem;display:flex}.subject-icon-box{border:1px solid var(--card-border);width:46px;height:46px;transition:var(--transition);background:#1e6cfd0a;border-radius:12px;justify-content:center;align-items:center;font-size:1.3rem;font-weight:700;display:flex}.subject-card:hover .subject-icon-box{background:var(--primary-color);color:#fff;border-color:#0000;transform:scale(1.08);box-shadow:0 4px 15px #1e6cfd33}.subject-card h3{font-size:1.05rem;font-weight:700;line-height:1.3}.subject-card .test-count{color:var(--text-secondary);font-size:.8rem}.tests-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem;display:grid}.test-card{flex-direction:column;gap:1.25rem;padding:1.75rem;display:flex}.test-card h3{-webkit-line-clamp:2;-webkit-box-orient:vertical;height:3.2rem;font-size:1.15rem;font-weight:700;line-height:1.4;display:-webkit-box;overflow:hidden}.test-details{color:var(--text-secondary);border-top:1px solid var(--card-border);justify-content:space-between;align-items:center;padding-top:10px;font-size:.82rem;display:flex}.badge-tag{border-radius:6px;padding:4px 8px;font-size:.75rem;font-weight:700}.badge-tag.info{color:var(--primary-color);background:#1e6cfd0f;border:1px solid #1e6cfd1f}.badge-tag.success{color:var(--success-color);background:#10b98114;border:1px solid #10b98126}.solver-container{flex-direction:column;gap:1.5rem;max-width:800px;margin:0 auto;display:flex}.solver-header{justify-content:space-between;align-items:center;font-size:.95rem;display:flex}.timer-box{color:var(--primary-color);background:var(--primary-glow);border:1px solid #1e6cfd1f;border-radius:8px;align-items:center;gap:6px;padding:6px 12px;font-weight:700;display:flex}.progress-container{background:#e2e8f0;border-radius:4px;width:100%;height:8px;overflow:hidden}.progress-fill{background:linear-gradient(90deg, var(--primary-color), #00b0ff);height:100%;transition:width .4s}.question-card{padding:2.5rem}.question-num{color:var(--primary-color);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px;font-size:.85rem;font-weight:700}.question-text{margin-bottom:2rem;font-size:1.25rem;font-weight:700;line-height:1.5}.options-list{flex-direction:column;gap:1rem;display:flex}.option-btn{text-align:left;border:1px solid var(--card-border);width:100%;color:var(--text-main);cursor:pointer;transition:var(--transition);background:#fff;border-radius:12px;align-items:center;gap:12px;padding:1.25rem;font-family:inherit;font-size:1rem;font-weight:500;display:flex}.option-btn:hover{background:#1e6cfd08;border-color:#1e6cfd33;transform:translate(4px)}.option-btn.selected{border-color:var(--primary-color);background:#1e6cfd0f;box-shadow:0 4px 15px #1e6cfd14}.option-indicator{border:2px solid var(--text-muted);width:22px;height:22px;transition:var(--transition);color:var(--text-secondary);border-radius:50%;justify-content:center;align-items:center;font-size:.75rem;font-weight:800;display:flex}.option-btn.selected .option-indicator{background:var(--primary-color);border-color:var(--primary-color);color:#fff}.solver-actions{justify-content:space-between;margin-top:1.5rem;display:flex}.results-card{text-align:center;flex-direction:column;align-items:center;gap:1.5rem;padding:3rem 2rem;display:flex}.gauge-container{width:140px;height:140px;margin:1rem 0;position:relative}.gauge-circle{background:conic-gradient(var(--primary-color) var(--percentage), #e2e8f0 0);border-radius:50%;justify-content:center;align-items:center;width:100%;height:100%;display:flex}.gauge-inner{background:#fff;border-radius:50%;flex-direction:column;justify-content:center;align-items:center;width:116px;height:116px;display:flex;box-shadow:inset 0 2px 10px #1e6cfd0a}.gauge-inner h2{font-size:2.2rem;font-weight:800}.results-grid{grid-template-columns:repeat(3,1fr);gap:1.5rem;width:100%;max-width:500px;margin:1.5rem 0;display:grid}.result-metric{border:1px solid var(--card-border);background:#1e6cfd04;border-radius:12px;padding:12px}.result-metric span{color:var(--text-secondary);font-size:.8rem}.result-metric p{margin-top:4px;font-size:1.25rem;font-weight:800}.review-list{text-align:left;flex-direction:column;gap:1.5rem;width:100%;margin-top:2rem;display:flex}.review-item{border:1px solid var(--card-border);background:#fff;border-radius:12px;padding:1.5rem}.review-item.correct{border-left:4px solid var(--success-color);background:#10b98108}.review-item.incorrect{border-left:4px solid var(--error-color);background:#ef444408}.review-question{margin-bottom:12px;font-size:1.05rem;font-weight:700}.review-ans-row{flex-direction:column;gap:6px;font-size:.9rem;display:flex}.mentor-grid{grid-template-columns:1fr;gap:1.5rem;display:grid}.mentor-header-card{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1.5rem;display:flex}.assigned-chips{flex-wrap:wrap;gap:8px;margin-top:6px;display:flex}.subject-chip{background:var(--primary-glow);color:var(--primary-color);border:1px solid #1e6cfd26;border-radius:20px;padding:4px 10px;font-size:.78rem;font-weight:700}.mentor-table-container{border:1px solid var(--card-border);background:#fff;border-radius:12px;overflow-x:auto}.mentor-table{border-collapse:collapse;text-align:left;width:100%}.mentor-table th,.mentor-table td{border-bottom:1px solid var(--card-border);padding:1rem 1.25rem;font-size:.9rem}.mentor-table th{color:var(--text-secondary);background:#1e6cfd08;font-weight:700}.mentor-table tr:last-child td{border-bottom:none}.mentor-table tr:hover td{background:#1e6cfd04}.wizard-card{max-width:800px;margin:0 auto}.form-row{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.5rem;margin-bottom:1.5rem;display:grid}.form-group{flex-direction:column;gap:6px;display:flex}.form-group label{color:var(--text-secondary);font-size:.88rem;font-weight:600}.form-group input,.form-group select,.form-group textarea{color:var(--text-main);transition:var(--transition);background:#fff;border:1px solid #1e6cfd1f;border-radius:10px;outline:none;padding:.75rem 1rem;font-family:inherit;font-size:.92rem}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--primary-color);background:#fff;box-shadow:0 0 10px #1e6cfd0f}.questions-builder{border-top:1px dashed var(--card-border);margin-top:2rem;padding-top:2rem}.question-builder-item{background:#fff;border:1px solid #1e6cfd14;border-radius:12px;margin-bottom:1.5rem;padding:1.5rem;position:relative}.q-delete-btn{color:var(--error-color);cursor:pointer;width:32px;height:32px;transition:var(--transition);background:#ef44441a;border:none;border-radius:50%;justify-content:center;align-items:center;display:flex;position:absolute;top:1rem;right:1rem}.q-delete-btn:hover{background:#ef444433;transform:scale(1.05)}.radio-group{flex-direction:column;gap:8px;margin-top:6px;display:flex}.radio-option{cursor:pointer;align-items:center;gap:8px;font-size:.88rem;display:flex}.spinner{animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}select option{color:var(--text-main);background-color:#fff}