:root{--bg: #f1f5f9;--surface: #ffffff;--surface-2: #f8fafc;--border: #e2e8f0;--border-strong: #cbd5e1;--text: #0f172a;--text-2: #334155;--muted: #64748b;--primary: #4f46e5;--primary-hover: #4338ca;--primary-weak: #eef2ff;--primary-weak-2: #e0e7ff;--success: #16a34a;--success-weak: #dcfce7;--danger: #dc2626;--danger-weak: #fee2e2;--warning: #d97706;--warning-weak: #fef3c7;--radius: 12px;--radius-sm: 8px;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .04);--shadow: 0 4px 12px rgba(15, 23, 42, .08);--shadow-lg: 0 12px 32px rgba(15, 23, 42, .16);--sidebar-w: 256px;--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased;font-size:15px}a{color:var(--primary);text-decoration:none}h1,h2,h3{margin:0;letter-spacing:-.01em}.muted{color:var(--muted)}.small{font-size:.82rem}.error{color:var(--danger);font-size:.88rem}.center{display:grid;place-items:center;gap:12px;min-height:70dvh;text-align:center;padding:24px}.logo{display:inline-flex;align-items:center;gap:10px}.logo-word{font-weight:800;font-size:1.25rem;letter-spacing:-.02em;color:var(--text)}.logo-word span{color:var(--primary)}.shell{display:flex;min-height:100dvh}.sidebar{width:var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;inset:0 auto 0 0;z-index:40}.sidebar-head{padding:20px 18px;border-bottom:1px solid var(--border)}.nav{flex:1;padding:12px;display:flex;flex-direction:column;gap:2px;overflow-y:auto}.nav-label{font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:700;padding:14px 12px 6px}.nav-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--radius-sm);color:var(--text-2);font-weight:500;cursor:pointer}.nav-item:hover{background:var(--surface-2)}.nav-item.active{background:var(--primary-weak);color:var(--primary-hover);font-weight:600}.nav-item .fa-icon{width:18px;text-align:center;font-size:.95rem}.sidebar-foot{padding:12px;border-top:1px solid var(--border)}.user-chip{display:flex;align-items:center;gap:10px;padding:8px;border-radius:var(--radius-sm)}.avatar{width:36px;height:36px;border-radius:50%;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:700;flex-shrink:0}.user-chip .meta{min-width:0}.user-chip .meta .name{font-weight:600;font-size:.88rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.content{flex:1;margin-left:var(--sidebar-w);min-width:0;display:flex;flex-direction:column}.content-inner{max-width:1100px;width:100%;margin:0 auto;padding:28px}.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap}.page-head h1{font-size:1.5rem}.page-head .sub{color:var(--muted);font-size:.9rem;margin-top:4px}.mobile-topbar{display:none;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:30}.scrim{display:none}@media(max-width:860px){.mobile-topbar{display:flex}.sidebar{transform:translate(-100%);transition:transform .22s ease;box-shadow:var(--shadow-lg)}.sidebar.open{transform:translate(0)}.content{margin-left:0}.scrim.show{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a66;z-index:35}.content-inner{padding:18px}}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm)}.card.pad{padding:18px}.grid{display:grid;gap:16px}.stat-grid{grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}.stat{display:flex;flex-direction:column;gap:6px;padding:18px}.stat .stat-icon{width:38px;height:38px;border-radius:10px;background:var(--primary-weak);color:var(--primary);display:grid;place-items:center;margin-bottom:4px}.stat .stat-value{font-size:1.7rem;font-weight:800;letter-spacing:-.02em}.stat .stat-label{color:var(--muted);font-size:.82rem}.badge{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:999px;font-size:.74rem;font-weight:600;background:var(--surface-2);color:var(--text-2);border:1px solid var(--border)}.badge.green{background:var(--success-weak);color:#15803d;border-color:transparent}.badge.red{background:var(--danger-weak);color:#b91c1c;border-color:transparent}.badge.indigo{background:var(--primary-weak);color:var(--primary-hover);border-color:transparent}.badge.amber{background:var(--warning-weak);color:#b45309;border-color:transparent}.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow-sm)}table.data{width:100%;border-collapse:collapse;font-size:.9rem}table.data th{text-align:left;padding:12px 16px;background:var(--surface-2);color:var(--muted);font-weight:600;font-size:.76rem;text-transform:uppercase;letter-spacing:.04em;border-bottom:1px solid var(--border);white-space:nowrap}table.data td{padding:12px 16px;border-bottom:1px solid var(--border);vertical-align:middle}table.data tr:last-child td{border-bottom:none}table.data tbody tr.clickable{cursor:pointer}table.data tbody tr.clickable:hover{background:var(--surface-2)}.cell-strong{font-weight:600}.bar{height:7px;width:90px;border-radius:999px;background:var(--border);overflow:hidden}.bar>span{display:block;height:100%;background:var(--primary)}.bar.green>span{background:var(--success)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);border-radius:var(--radius-sm);padding:9px 15px;font-size:.9rem;font-weight:600;cursor:pointer;white-space:nowrap;font-family:inherit}.btn:hover{background:var(--surface-2)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn.primary:hover{background:var(--primary-hover)}.btn.danger{background:var(--surface);border-color:var(--danger);color:var(--danger)}.btn.danger:hover{background:var(--danger-weak)}.btn.ghost{border-color:transparent;background:transparent}.btn.ghost:hover{background:var(--surface-2)}.btn.sm{padding:6px 11px;font-size:.82rem}.btn.block{width:100%}.icon-btn{width:38px;height:38px;border:1px solid var(--border);background:var(--surface);border-radius:var(--radius-sm);display:grid;place-items:center;cursor:pointer;color:var(--text-2)}.icon-btn:hover{background:var(--surface-2)}form{display:flex;flex-direction:column;gap:14px}label.field{display:flex;flex-direction:column;gap:6px;font-size:.84rem;font-weight:600;color:var(--text-2)}input,select{background:var(--surface);border:1px solid var(--border-strong);color:var(--text);border-radius:var(--radius-sm);padding:10px 12px;font-size:.95rem;font-family:inherit;width:100%}input:focus,select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-weak)}.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.auth-screen{min-height:100dvh;display:grid;place-items:center;padding:20px;background:radial-gradient(1200px 500px at 50% -10%,#e0e7ff 0%,var(--bg) 55%)}.auth-card{width:100%;max-width:400px;padding:32px;text-align:center}.auth-card .logo{justify-content:center;margin-bottom:18px}.auth-card form{margin-top:20px;text-align:left}.auth-card h1{font-size:1.35rem}.review-cta{display:flex;align-items:center;gap:14px;width:100%;cursor:pointer;border:1px solid var(--warning);background:#fffdf7}.review-cta:hover{box-shadow:var(--shadow)}.bank-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}.bank-card .bank-cat{font-size:.7rem}.bank-card h3{font-size:1rem;margin:8px 0 4px}.mode-grid{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}.mode-card{padding:20px;text-align:left;cursor:pointer;display:flex;flex-direction:column;gap:8px;border:1px solid var(--border);transition:border-color .15s,box-shadow .15s}.mode-card:hover{border-color:var(--primary);box-shadow:var(--shadow)}.mode-card .mode-ico{width:44px;height:44px;border-radius:11px;display:grid;place-items:center;font-size:1.1rem;background:var(--primary-weak);color:var(--primary);margin-bottom:4px}.mode-card.exam .mode-ico{background:var(--warning-weak);color:var(--warning)}.mode-card h3{font-size:1.02rem}.mode-card p{margin:0;color:var(--muted);font-size:.86rem;line-height:1.45}.quiz-shell{min-height:100dvh;display:flex;flex-direction:column;background:var(--bg)}.quiz-bar{position:sticky;top:0;z-index:10;background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px}.timer{font-variant-numeric:tabular-nums;font-weight:800;font-size:1.05rem;padding:4px 12px;border-radius:999px;background:var(--surface-2);border:1px solid var(--border)}.timer.warn{background:var(--warning-weak);color:#b45309;border-color:transparent}.timer.danger{background:var(--danger-weak);color:#b91c1c;border-color:transparent}.progress{height:4px;background:var(--border)}.progress-bar{height:100%;background:var(--primary);transition:width .25s}.quiz-body{flex:1;width:100%;max-width:680px;margin:0 auto;padding:24px 18px 40px;display:flex;flex-direction:column;gap:20px}.qnum{font-size:.8rem;font-weight:700;color:var(--primary);text-transform:uppercase;letter-spacing:.05em}.question-text{font-size:1.18rem;font-weight:600;line-height:1.45}.answers{display:grid;gap:10px}.answer{position:relative;text-align:left;background:var(--surface);border:1.5px solid var(--border);color:var(--text);border-radius:var(--radius);padding:15px 16px;font-size:.97rem;line-height:1.4;cursor:pointer;font-family:inherit;display:flex;gap:12px;align-items:center}.answer .opt-key{flex-shrink:0;width:26px;height:26px;border-radius:7px;border:1px solid var(--border-strong);display:grid;place-items:center;font-weight:700;font-size:.8rem;color:var(--muted)}.answer:hover:not(.locked){border-color:var(--primary)}.answer.selected{border-color:var(--primary);background:var(--primary-weak)}.answer.selected .opt-key{background:var(--primary);color:#fff;border-color:var(--primary)}.answer.locked{cursor:default}.answer.correct{border-color:var(--success);background:var(--success-weak)}.answer.correct .opt-key{background:var(--success);color:#fff;border-color:var(--success)}.answer.wrong{border-color:var(--danger);background:var(--danger-weak)}.answer.wrong .opt-key{background:var(--danger);color:#fff;border-color:var(--danger)}.answer .mark{margin-left:auto;font-size:.95rem}.feedback{border-radius:var(--radius);padding:12px 14px;font-size:.9rem;font-weight:600}.feedback.ok{background:var(--success-weak);color:#15803d}.feedback.ko{background:var(--danger-weak);color:#b91c1c}.nav-row{display:flex;justify-content:space-between;gap:12px;margin-top:4px}.result-hero{text-align:center;padding:28px;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow-sm)}.result-hero .ring{width:116px;height:116px;border-radius:50%;margin:0 auto 12px;display:grid;place-items:center;font-size:1.7rem;font-weight:800;color:#fff}.result-hero.ok .ring{background:var(--success)}.result-hero.bad .ring{background:var(--danger)}.result-points{display:flex;justify-content:center;gap:22px;margin-top:14px;flex-wrap:wrap}.result-points .pt{text-align:center}.result-points .pt b{display:block;font-size:1.3rem}.review{display:grid;gap:14px;margin-top:20px}.review-item{padding:16px;display:grid;gap:10px}.modal-scrim{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a73;display:grid;place-items:center;padding:18px;z-index:60}.modal{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%;max-width:440px;max-height:90dvh;overflow-y:auto}.modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}.modal-head h2{font-size:1.05rem}.modal-body{padding:20px}.modal-foot{display:flex;justify-content:flex-end;gap:10px;padding:16px 20px;border-top:1px solid var(--border)}.install-prompt{position:fixed;left:16px;right:16px;bottom:16px;max-width:460px;margin:0 auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:16px;display:flex;gap:14px;align-items:center;z-index:70}.install-prompt .txt{flex:1;min-width:0}.install-prompt .txt .t{font-weight:700}.install-prompt .txt .d{color:var(--muted);font-size:.84rem}.empty{text-align:center;padding:40px 20px;color:var(--muted)}.empty .fa-icon{font-size:1.6rem;margin-bottom:8px;opacity:.5}