:root{--brand:#07153a;--accent:#ffd23f;--teal:#36b2a2;--bg:#f4f7fb;--danger:#dc3545;--ok:#198754;--text:#182033}*{box-sizing:border-box}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}a{text-decoration:none;color:inherit}.topbar{background:var(--brand);color:#fff;padding:14px 0}.wrap{width:min(1180px,94%);margin:auto}.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{font-weight:800;font-size:20px}.nav{display:flex;gap:10px;flex-wrap:wrap}.nav a{padding:9px 12px;border-radius:8px}.nav a:hover{background:#ffffff18}.page{padding:24px 0}.card{background:#fff;border-radius:16px;padding:20px;box-shadow:0 8px 28px #18203312;margin-bottom:18px}.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}.col-3{grid-column:span 3}.col-4{grid-column:span 4}.col-6{grid-column:span 6}.col-8{grid-column:span 8}.col-12{grid-column:span 12}.stat{border-left:5px solid var(--teal)}.stat strong{font-size:30px;display:block}.btn{display:inline-block;border:0;border-radius:10px;padding:10px 15px;font-weight:700;cursor:pointer;background:var(--brand);color:#fff}.btn.accent{background:var(--accent);color:var(--brand)}.btn.teal{background:var(--teal)}.btn.danger{background:var(--danger)}.btn.secondary{background:#64748b}.actions{display:flex;gap:8px;flex-wrap:wrap}.form-group{margin-bottom:14px}label{display:block;font-weight:700;margin-bottom:6px}input,select,textarea{width:100%;padding:11px;border:1px solid #d8deea;border-radius:10px;background:#fff}textarea{min-height:90px}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:11px;border-bottom:1px solid #edf0f5;vertical-align:top}th{background:#f8fafc}.badge{display:inline-block;padding:5px 9px;border-radius:999px;font-size:12px;font-weight:800;background:#e2e8f0}.badge.ok{background:#dcfce7;color:#166534}.badge.bad{background:#fee2e2;color:#991b1b}.alert{padding:12px 15px;border-radius:10px;margin-bottom:15px}.alert.success{background:#dcfce7;color:#166534}.alert.error{background:#fee2e2;color:#991b1b}.login-shell{min-height:100vh;display:grid;place-items:center;padding:20px;background:linear-gradient(135deg,var(--brand),#103e56)}.login-card{width:min(520px,100%);background:#fff;padding:28px;border-radius:20px}.muted{color:#64748b}.exam-shell{width:min(1200px,96%);margin:18px auto;display:grid;grid-template-columns:240px 1fr;gap:16px}.legend{background:#fff;padding:14px;border-radius:16px;display:grid;grid-template-columns:repeat(5,1fr);gap:8px;align-content:start}.qdot{height:36px;border:0;border-radius:50%;background:#fee2e2;color:#991b1b;font-weight:800}.qdot.answered{background:#dcfce7;color:#166534}.qdot.active{outline:3px solid var(--accent)}.option{display:block;border:1px solid #dbe2ea;border-radius:12px;padding:12px;margin:10px 0;cursor:pointer}.option:hover{background:#f8fafc}.exam-head{display:flex;justify-content:space-between;gap:10px;align-items:center}.timer{font-size:20px;font-weight:900;color:var(--brand)}@media(max-width:850px){.col-3,.col-4,.col-6,.col-8{grid-column:span 12}.exam-shell{grid-template-columns:1fr}.legend{order:2;grid-template-columns:repeat(10,1fr)}.topbar .wrap{align-items:flex-start;flex-direction:column}}