:root{--blue:#1866d8;--blue-dark:#092c68;--blue-mid:#1254b4;--ink:#1b3659;--muted:#667c97;--pale:#f2f7ff;--line:#dce8f7;--panel:#fff;--success:#09815e;--danger:#c4464f;--warning:#be851e;--shadow:0 12px 36px #1b528015}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{min-height:100vh;margin:0;font-family:Prompt,system-ui,sans-serif;font-size:14px;color:var(--ink);background:radial-gradient(circle at 98% 0,#c9e3ff 0,transparent 30%),linear-gradient(130deg,#f9fbff,#edf5ff 80%)}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}input,textarea,select{border:1px solid #cadbed;color:var(--ink);background:#fff;border-radius:12px;padding:12px 14px;width:100%;min-width:0;outline:0}input:focus,textarea:focus,select:focus{border-color:#6aa8ff;box-shadow:0 0 0 3px #5294e51d}textarea{resize:vertical}label{font-weight:500;font-size:12px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(24px,3vw,37px);line-height:1.4}h2{font-size:23px;line-height:1.45;margin-bottom:12px}h3{font-size:17px;margin-bottom:14px}p{line-height:1.8}hr{border:0;border-top:1px solid var(--line);margin:24px 0}.hidden{display:none!important}.app-shell{max-width:1260px;padding:22px;margin:auto}.topbar{border-radius:23px;box-shadow:0 14px 35px #153b8d29;background:linear-gradient(115deg,#092e70 0%,#135ebf 66%,#3591e3);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:20px 26px;gap:12px}.branding{display:flex;align-items:center;gap:15px}.brand-icon{width:55px;height:55px;border-radius:17px;background:#ffffff24;border:1px solid #ffffff50;display:grid;place-items:center;font-size:35px}.branding strong{font-size:20px;letter-spacing:.5px;display:block}.branding small{font-size:11px;letter-spacing:1.35px;opacity:.8}.top-side{display:flex;align-items:center;gap:8px;border-radius:50px;background:#ffffff1e;padding:9px 15px;border:1px solid #ffffff3b;font-size:11px}.top-dot,.status-dot{height:8px;width:8px;border-radius:50%;background:#7af4c9;display:inline-block;box-shadow:0 0 0 3px #ffffff15}.nav-tabs{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}.nav-link{border:1px solid var(--line);border-radius:12px;background:#fff;color:#64809d;padding:12px 18px;display:flex;align-items:center;gap:8px;font-weight:500}.nav-link.selected{background:#e4f1ff;color:#155dbd;border-color:#a3c7f4}.page{animation:fade .2s ease}.intro-banner{background:linear-gradient(118deg,#10458f,#2675d7 75%,#58b2fa);border-radius:21px;padding:28px 35px;display:flex;align-items:center;justify-content:space-between;gap:22px;color:#fff;margin-bottom:18px;overflow:hidden}.intro-banner h1{margin:10px 0}.intro-banner p{color:#e5f2ff;margin-bottom:0}.round-emblem{height:155px;width:155px;min-width:155px;border-radius:50%;background:radial-gradient(circle at 28% 24%,#ffffff33,#ffffff08);border:2px solid #ffffff59;box-shadow:0 0 0 21px #ffffff10,0 0 0 45px #ffffff08;display:grid;place-items:center;font-size:78px;position:relative}.round-emblem small{font-size:13px;position:absolute;bottom:29px;letter-spacing:3px}.main-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(295px,.9fr);gap:18px}.panel{background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:21px;padding:24px;min-width:0}.start-panel{background:linear-gradient(140deg,#fff,#fafdff)}.panel-heading,.row,.page-title-row{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.eyebrow{font-size:11px;color:#3079d0;font-weight:600;letter-spacing:1px}.eyebrow.white{color:#ddf2ff}.secondary,.hint{color:var(--muted)}.hint{font-size:12px;line-height:1.75;margin:12px 0 0}.tiny{font-size:12px}.soft-tag{border-radius:25px;background:#e8f2ff;color:#276ac2;font-size:11px;padding:6px 11px;display:inline-flex;white-space:nowrap}.form-flow{display:grid;gap:10px;margin-top:18px}.form-flow .btn{margin-top:6px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:12px;padding:11px 17px;text-decoration:none;font-weight:600;font-size:13px;min-height:44px}.btn.primary{background:linear-gradient(120deg,#2879ec,#1758c6);color:#fff;box-shadow:0 7px 14px #1760c62b}.btn.neutral,.btn.text-btn{background:#eef5ff;color:#2460b3;border:1px solid #cfdef4}.btn.wide{width:100%}.btn.danger{background:#ffeded;color:#b93e4c}.notice{background:#edf5ff;color:#4c6e98;padding:15px 17px;border-left:4px solid #74aff0;border-radius:12px;margin-top:20px}.notice p{margin:5px 0 0;font-size:12px}.metric-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:18px 0 25px}.metric{padding:17px 4px;border-radius:15px;text-align:center;background:#f0f7ff}.metric strong{display:block;font-size:30px;color:#196bda}.metric span{font-size:12px;color:var(--muted)}.bank-head,.summary-line{display:flex;justify-content:space-between;align-items:center;gap:8px;margin:12px 0;color:var(--muted)}.summary-line b,.bank-head b{color:var(--ink);font-size:13px}.progress-track{height:10px;background:#e5eefb;border-radius:30px;overflow:hidden}.progress-track.slim{height:7px;margin:20px 0}.progress-bar{height:100%;width:0;background:linear-gradient(90deg,#62b2fa,#2369d8);transition:width .2s}.details-row{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:12px;margin-top:12px}.details-row .status-dot{background:#2788ee}.exam-heading{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:16px}.exam-heading h2{margin:5px 0}.timer{font-size:23px;font-weight:700;color:#155fc6;background:#e2f1ff;border:1px solid #c2defe;padding:10px 17px;border-radius:15px;font-variant-numeric:tabular-nums;white-space:nowrap}.timer.warn{color:#bc3845;background:#ffebee;border-color:#ffced4}.exam-question{font-size:20px;font-weight:600;white-space:pre-wrap;line-height:1.7;margin:22px 0}.answer-options{display:grid;gap:11px}.answer-option{display:flex;align-items:flex-start;gap:12px;cursor:pointer;padding:14px 16px;border:1px solid #dae7f6;border-radius:13px;transition:background .15s;line-height:1.7}.answer-option.selected{background:#eaf4ff;border-color:#6fa8f7}.answer-option input{width:auto;margin-top:7px;accent-color:#2164d9;flex:none}.question-footer{display:flex;justify-content:space-between;gap:10px;margin-top:25px}.answer-sheet{align-self:start}.number-grid{display:grid;grid-template-columns:repeat(10,minmax(0,1fr));gap:6px;margin:15px 0}.number-grid button{padding:0;aspect-ratio:1;border:1px solid #d6e6f8;color:#587695;background:#fff;border-radius:9px;font-size:12px}.number-grid button.done{color:#087858;background:#dff7ed;border-color:#9dd8c2}.number-grid button.current{outline:2px solid #2174d8;outline-offset:1px}.legend{display:flex;gap:16px;color:var(--muted);font-size:11px;flex-wrap:wrap}.legend-dot{display:inline-block;width:11px;height:11px;border:1px solid #c7dcec;background:#fff;border-radius:3px;margin-right:4px;vertical-align:middle}.legend-dot.done{background:#a3e0c7;border-color:#7ab9a2}.result-hero{text-align:center;margin-bottom:18px}.result-badge{border-radius:100px;display:inline-flex;padding:6px 17px;font-weight:600;color:#236cc8;background:#e8f2ff}.result-badge.pass{background:#e2f7ef;color:#098157}.result-badge.fail{background:#ffedef;color:#be4753}.big-score{font-size:72px;line-height:1.3;font-weight:700;color:#1e65ce;margin:10px}.big-score span{font-size:28px;color:#89a1bc}.review-item{border-bottom:1px solid var(--line);padding:16px 0}.review-item:last-child{border-bottom:0}.review-item h4{font-size:14px;font-weight:600;margin:0 0 8px;white-space:pre-wrap}.review-item p{font-size:12px;color:var(--muted);margin:3px 0}.review-item .correct{color:var(--success)}.review-item .wrong{color:var(--danger)}.login-card{max-width:560px;margin:25px auto}.page-title-row{margin:12px 0 18px}.page-title-row h2{margin:6px 0}.page-title-row p{margin-bottom:0}.admin-grid{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:18px;align-items:start}.question-form label{display:block}.choice-fields{display:grid;gap:9px}.choice-fields label{margin-top:3px}.two-fields{display:grid;grid-template-columns:1fr 1fr;gap:12px}.two-fields>div{display:grid;gap:9px}.button-row{justify-content:flex-start}.filter-row{flex-wrap:nowrap}.filter-row input{flex:1}.questions-list{max-height:920px;overflow:auto;margin-top:13px}.question-item{padding:17px 0;border-bottom:1px solid var(--line)}.question-item:last-child{border:0}.question-item strong{display:block;font-size:14px;margin:9px 0;white-space:pre-wrap}.question-item .meta{display:flex;flex-wrap:wrap;align-items:center;gap:7px}.pill{font-size:10px;border-radius:20px;padding:4px 8px;background:#e9f1ff;color:#2b69b4}.pill.active{background:#e1f7ed;color:#078054}.pill.inactive{background:#fff4e7;color:#b77c2a}.question-item .tools{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.question-item .tools button{padding:8px 12px;min-height:36px}.result-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:13px;margin-bottom:18px}.mini-stat{padding:18px}.mini-stat span{font-size:12px;color:var(--muted);display:block}.mini-stat strong{display:block;font-size:28px;color:#175cc2;margin-top:4px}.table-header{margin-bottom:16px}.table-header h3{margin:0}.table-header input{max-width:300px}.table-scroll{overflow:auto}table{width:100%;border-collapse:collapse;min-width:720px;font-size:12px}th{text-align:left;color:#7890a9;font-weight:600}td,th{border-bottom:1px solid #e7eff7;padding:13px 9px;white-space:nowrap}td button{font-size:11px}.message{padding:14px 19px;border:1px solid #bfd9fa;border-radius:12px;background:#e7f2ff;color:#1957a9;margin:12px 0;line-height:1.7}.message.error{background:#fff0ef;color:#b33f4a;border-color:#ffd2d0}.message.success{background:#e5f7ee;color:#0b7b56;border-color:#bbe9d2}footer{text-align:center;font-size:11px;color:#8ca2ba;padding:28px 0}dialog{width:min(800px,calc(100% - 30px));max-height:85vh;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 25px 80px #1d395a38;color:var(--ink)}dialog::backdrop{background:#0c2b4c80}.modal-head{display:flex;justify-content:space-between;gap:12px;align-items:center}.icon-button{border:0;background:#eef5fe;border-radius:9px;padding:8px 12px;color:var(--ink)}.empty{padding:35px 12px;text-align:center;color:var(--muted);font-size:13px}.loading{opacity:.6;pointer-events:none}@keyframes fade{from{opacity:.6;transform:translateY(3px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:1000px){.main-grid,.admin-grid{grid-template-columns:1fr}.number-grid{grid-template-columns:repeat(10,minmax(0,1fr))}.answer-sheet{order:2}}
@media(max-width:650px){.app-shell{padding:10px}.topbar{padding:16px;border-radius:17px}.branding{gap:10px}.brand-icon{width:42px;height:42px;font-size:27px}.branding strong{font-size:14px}.branding small{font-size:8px;letter-spacing:.7px}.top-side{display:none}.nav-tabs{gap:6px;margin:14px 0}.nav-link{padding:10px 13px;font-size:12px}.intro-banner{padding:21px 19px}.round-emblem{display:none}.panel{border-radius:16px;padding:18px}h1{font-size:24px}h2{font-size:21px}.metric strong{font-size:25px}.number-grid{grid-template-columns:repeat(7,minmax(0,1fr))}.exam-heading h2{font-size:18px}.exam-question{font-size:17px}.timer{font-size:17px;padding:10px}.result-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.big-score{font-size:58px}.question-footer button{padding:9px 12px;font-size:12px}}