:root{--bg:#f4f7fb;--panel:#fff;--text:#172033;--muted:#68738a;--primary:#3157d5;--primary2:#243fa8;--success:#198754;--danger:#c63d4f;--warning:#d58a00;--border:#dfe5ef;--shadow:0 12px 34px rgba(27,42,83,.09);--radius:18px}
*{box-sizing:border-box}html{font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}body{margin:0;min-height:100vh}.topbar{height:72px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 max(20px,calc((100vw - 1240px)/2));position:sticky;top:0;z-index:20}.brand{display:flex;gap:11px;align-items:center;text-decoration:none;color:var(--text)}.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:13px;background:linear-gradient(135deg,var(--primary),#6b88ec);color:#fff;font-weight:800;font-size:22px}.brand strong,.brand small{display:block}.brand small{font-size:11px;color:var(--muted);letter-spacing:.04em}.topnav{display:flex;align-items:center;gap:8px}.topnav a{padding:10px 12px;text-decoration:none;color:#39445a;border-radius:10px;font-weight:600;font-size:14px}.topnav a:hover{background:#eef2ff;color:var(--primary)}.user-chip{background:#eef2ff;color:var(--primary);padding:9px 12px;border-radius:99px;font-size:13px;font-weight:700}.logout-link{color:var(--danger)!important}.menu-toggle{display:none;border:0;background:#eef2ff;border-radius:10px;padding:9px 12px;font-size:20px}.page-shell{max-width:1240px;margin:30px auto;padding:0 20px;min-height:calc(100vh - 145px)}.footer{text-align:center;color:var(--muted);font-size:13px;padding:18px}.page-head{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:22px}.page-head h1{margin:0;font-size:30px}.page-head p{margin:7px 0 0;color:var(--muted)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:0;border-radius:11px;padding:11px 16px;text-decoration:none;font-weight:700;cursor:pointer;font-size:14px}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary2)}.btn-light{background:#eef2f7;color:#33405a}.btn-danger{background:#feecee;color:var(--danger)}.btn-sm{padding:8px 11px;font-size:12px}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}.grid{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.stat{padding:20px}.stat .label{color:var(--muted);font-size:13px;font-weight:700}.stat .value{font-size:30px;font-weight:800;margin-top:8px}.stat .hint{font-size:12px;color:var(--muted);margin-top:5px}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:13px 12px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}.table th{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}.table tr:last-child td{border-bottom:0}.badge{display:inline-flex;padding:5px 9px;border-radius:99px;font-size:12px;font-weight:800}.badge-blue{background:#e8eeff;color:var(--primary)}.badge-green{background:#e8f7ef;color:var(--success)}.badge-red{background:#feecee;color:var(--danger)}.badge-gray{background:#edf0f5;color:#596579}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:17px}.field{display:flex;flex-direction:column;gap:7px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:800}.input,.select,.textarea{width:100%;border:1px solid #ccd5e3;border-radius:11px;background:#fff;color:var(--text);padding:12px 13px;font:inherit;outline:none}.textarea{min-height:118px;resize:vertical}.input:focus,.select:focus,.textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(49,87,213,.12)}.help{font-size:12px;color:var(--muted)}.actions{display:flex;flex-wrap:wrap;gap:9px;align-items:center}.alert{padding:13px 16px;border-radius:12px;margin-bottom:18px;font-weight:650}.alert-success{background:#e8f7ef;color:#146a43}.alert-danger{background:#feecee;color:#a82d3d}.alert-warning{background:#fff5db;color:#8b5b00}.alert-info{background:#eaf2ff;color:#2853a4}.auth-shell{max-width:440px;margin:7vh auto}.auth-card{padding:30px}.auth-card h1{margin:0 0 7px}.auth-card p{color:var(--muted);margin:0 0 24px}.stack{display:grid;gap:16px}.hero{background:linear-gradient(135deg,#243fa8,#496ddd);color:#fff;padding:34px;border-radius:24px;display:flex;align-items:center;justify-content:space-between;gap:22px;margin-bottom:22px}.hero h1{margin:0 0 9px;font-size:34px}.hero p{margin:0;color:#dce5ff;max-width:680px}.hero .btn{background:#fff;color:var(--primary)}.question-card{max-width:860px;margin:0 auto}.question-meta{display:flex;justify-content:space-between;gap:15px;color:var(--muted);font-size:13px;margin-bottom:16px}.question-text{font-size:22px;line-height:1.55;font-weight:700;margin:10px 0 22px}.option-list{display:grid;gap:11px}.option{display:flex;align-items:flex-start;gap:12px;border:1px solid var(--border);padding:14px;border-radius:13px;cursor:pointer}.option:hover{border-color:#9eb0ef;background:#f8faff}.option input{margin-top:4px}.option-key{width:27px;height:27px;border-radius:8px;background:#edf1ff;color:var(--primary);display:grid;place-items:center;font-weight:800;flex:0 0 auto}.progress{height:9px;background:#e8edf5;border-radius:99px;overflow:hidden;margin-bottom:24px}.progress span{display:block;height:100%;background:linear-gradient(90deg,var(--primary),#7a93eb)}.result-score{text-align:center;padding:30px}.result-score .big{font-size:54px;font-weight:900;color:var(--primary)}.result-list{display:grid;gap:12px}.result-item{border:1px solid var(--border);border-left-width:5px;border-radius:13px;padding:16px}.result-item.correct{border-left-color:var(--success)}.result-item.wrong{border-left-color:var(--danger)}.result-item.blank{border-left-color:var(--warning)}.empty{text-align:center;padding:35px;color:var(--muted)}.muted{color:var(--muted)}.section-title{margin:30px 0 14px}.inline-form{display:flex;gap:10px;flex-wrap:wrap}.pagination{display:flex;gap:6px;margin-top:18px}.pagination a,.pagination span{padding:8px 11px;border-radius:9px;background:#fff;border:1px solid var(--border);text-decoration:none;color:var(--text)}.pagination .active{background:var(--primary);color:#fff}.option-row{display:grid;grid-template-columns:45px 1fr 120px;gap:10px;align-items:center}.danger-zone{border:1px solid #f1b6be;background:#fff8f8}.small{font-size:12px}
@media(max-width:850px){.grid-4,.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-2,.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.menu-toggle{display:block}.topnav{display:none;position:absolute;top:72px;left:12px;right:12px;background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow);padding:12px;flex-direction:column;align-items:stretch}.topnav.open{display:flex}.user-chip{text-align:center}.page-head{flex-direction:column}.hero{align-items:flex-start;flex-direction:column}.option-row{grid-template-columns:38px 1fr}.option-row label:last-child{grid-column:2}.question-text{font-size:19px}}
@media(max-width:520px){.grid-4,.grid-3{grid-template-columns:1fr}.page-shell{padding:0 13px;margin-top:20px}.card{padding:17px}.topbar{padding:0 14px}.brand small{display:none}.hero{padding:24px}.hero h1{font-size:27px}.page-head h1{font-size:25px}.btn{width:100%}.actions .btn{width:auto}.question-meta{flex-direction:column}.question-card{padding:16px}.result-score .big{font-size:43px}}

.review-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:18px;align-items:start}.review-list{padding:10px;display:grid;gap:7px;position:sticky;top:92px;max-height:calc(100vh - 120px);overflow:auto}.review-link{display:grid;grid-template-columns:1fr auto;gap:5px;padding:11px;border-radius:11px;text-decoration:none;color:var(--text);border:1px solid transparent}.review-link:hover,.review-link.active{background:#eef2ff;border-color:#cad5ff}.review-link small{grid-column:1/-1;color:var(--muted)}.suggestion-box{background:#f1f5ff;border:1px solid #ccd7ff;border-radius:13px;padding:14px}.draft-image-frame,.question-image-frame{display:flex;justify-content:center;align-items:center;width:100%;padding:14px;background:#f8fafc;border:1px solid var(--border);border-radius:13px;overflow:auto;margin:8px 0 10px}.draft-image,.question-image{display:block;width:auto;height:auto;max-width:100%;max-height:none;object-fit:contain;border:0;border-radius:8px;background:#fff;margin:0}.option-edit{display:grid;grid-template-columns:36px 1fr 100px;align-items:center;gap:10px}.option-edit label{font-weight:600}@media(max-width:850px){.review-layout{grid-template-columns:1fr}.review-list{position:static;max-height:260px}.option-edit{grid-template-columns:30px 1fr}.option-edit label{grid-column:2}}

@media(max-width:1100px){.review-layout{grid-template-columns:1fr}.review-list{position:static;max-height:none;grid-template-columns:repeat(3,minmax(0,1fr))}.review-link{min-width:0}}
@media(max-width:650px){.review-list{grid-template-columns:repeat(2,minmax(0,1fr))}.draft-image-frame,.question-image-frame{padding:8px}}