:root{
  --bg:#f6f8fb;--surface:#ffffff;--surface2:#f8fafc;--surface3:#eef2f7;--line:#dfe5ec;
  --text:#172033;--muted:#6d7888;--brand:#f4c430;--brand2:#ffd95a;--brand-dark:#9f7900;--blue:#315efb;
  --green:#168a62;--red:#d9475b;--orange:#e9901d;--shadow:0 14px 44px rgba(25,35,55,.08);--shadow-sm:0 5px 18px rgba(25,35,55,.06);--radius:18px;
}
*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;min-height:100vh;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text);background:linear-gradient(180deg,#fff 0,#f8fafc 240px,#f6f8fb 100%)}
button,input,select,textarea{font:inherit}button{cursor:pointer}.hidden{display:none!important}.muted{color:var(--muted)}.small{font-size:12px}.danger{color:var(--red)}.success{color:var(--green)}
.topbar{height:78px;padding:0 clamp(18px,4vw,56px);display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:40;background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);box-shadow:0 2px 14px rgba(24,34,52,.04)}
.brand-wrap{display:flex;align-items:center;gap:12px}.brand-mark{width:43px;height:43px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(135deg,#f4c430,#ffd95a);color:#171717;font-size:23px;font-weight:950;box-shadow:0 8px 24px rgba(244,196,48,.24)}.brand{font-size:15px;font-weight:950;letter-spacing:.095em;color:#172033}.brand span{color:#9a7400}.brand-sub{font-size:11px;color:#7b8797;margin-top:2px}.top-actions{display:flex;align-items:center;gap:8px}.secure-pill{font-size:10px;text-transform:uppercase;letter-spacing:.06em;color:#5d6878;background:#f8fafc;border:1px solid var(--line);padding:7px 10px;border-radius:999px}.secure-pill::first-letter{color:var(--green)}
.app-shell{width:min(1240px,calc(100% - 28px));margin:34px auto 72px}.footer{text-align:center;color:#8a94a3;font-size:11px;padding:24px}
.btn{border:0;border-radius:11px;padding:10px 14px;font-weight:800;transition:.16s;box-shadow:none}.btn:hover{transform:translateY(-1px)}.btn:active{transform:none}.btn-primary{background:#172033;color:white}.btn-primary:hover{background:#0f1727}.btn-blue{background:var(--blue);color:white}.btn-success{background:#168a62;color:white}.btn-danger{background:#fff1f3;color:#b93447;border:1px solid #f3cbd1}.btn-ghost{background:white;color:#384457;border:1px solid var(--line)}.btn-ghost:hover{border-color:#c7d0dc;background:#f9fafb}.btn-sm{padding:7px 9px;font-size:11px;border-radius:8px}.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.hero{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}.hero-panel,.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.hero-panel{padding:clamp(27px,4vw,48px);position:relative;overflow:hidden}.hero-panel:first-child{background:linear-gradient(135deg,#fff 0%,#fffdf5 62%,#fff7d4 100%)}.hero-panel:after{content:"";position:absolute;width:300px;height:300px;border:1px solid rgba(244,196,48,.2);border-radius:50%;right:-130px;top:-150px;box-shadow:0 0 0 50px rgba(244,196,48,.045),0 0 0 100px rgba(244,196,48,.025)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:#5f4900;background:#fff2b1;border:1px solid #f1da6a;padding:6px 9px;border-radius:999px;font-weight:900;font-size:10px;letter-spacing:.05em;text-transform:uppercase}.hero h1{font-size:clamp(38px,5.8vw,72px);line-height:.94;letter-spacing:-.055em;margin:23px 0 18px;max-width:800px;color:#172033}.hero h1 span{color:#a87d00}.hero p{font-size:16px;line-height:1.7;color:#667386;max-width:690px}.hero-note{margin-top:22px;padding:13px 15px;border-left:3px solid var(--brand);background:#fffaf0;color:#697486;font-size:12px;line-height:1.6;border-radius:0 10px 10px 0}
.role-grid{display:grid;gap:12px}.role-card{padding:22px;border:1px solid var(--line);border-radius:14px;background:#fbfcfe;box-shadow:var(--shadow-sm)}.role-card .icon{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:#fff4bd;color:#7c5d00;font-weight:900;margin-bottom:14px}.role-card h3{margin:0 0 6px;font-size:17px}.role-card p{margin:0 0 16px;color:var(--muted);font-size:12px;line-height:1.55}
.course-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}.course-tile{padding:17px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.88);position:relative;overflow:hidden;box-shadow:var(--shadow-sm)}.course-tile:before{content:"";position:absolute;inset:0 auto 0 0;width:3px;background:var(--brand)}.course-tile:nth-child(2):before{background:var(--blue)}.course-tile:nth-child(3):before{background:var(--green)}.course-tile .course-icon{font-size:20px;color:#4b5668}.course-tile h4{margin:8px 0 4px}.course-tile p{margin:0;color:var(--muted);font-size:11px}
.auth-wrap{max-width:580px;margin:55px auto}.card{padding:24px}.card h2,.card h3{margin-top:0}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.field{display:flex;flex-direction:column;gap:7px}.field.full{grid-column:1/-1}.field label{font-size:11px;color:#5d6878;font-weight:800;text-transform:uppercase;letter-spacing:.05em}.input,.select,.textarea{width:100%;border:1px solid #d8dfe8;background:#fff;color:var(--text);border-radius:10px;padding:11px 12px;outline:none}.input:focus,.select:focus,.textarea:focus{border-color:#b69a37;box-shadow:0 0 0 3px rgba(244,196,48,.16)}.textarea{min-height:105px;resize:vertical}
.dashboard{display:grid;grid-template-columns:245px 1fr;gap:20px}.sidebar{position:sticky;top:96px;height:max-content;padding:12px}.side-brand{padding:12px 12px 16px;border-bottom:1px solid var(--line);margin-bottom:8px}.side-brand strong{font-size:13px}.side-brand div{font-size:10px;color:var(--muted);margin-top:3px}.nav-btn{width:100%;display:flex;align-items:center;gap:9px;text-align:left;margin:3px 0;background:transparent;color:#657184;border:1px solid transparent;border-radius:10px;padding:10px 11px;font-weight:750;font-size:13px}.nav-btn:hover,.nav-btn.active{background:#fff8dd;border-color:#f0dfa0;color:#2b3342}.nav-btn.active:before{content:"";width:4px;height:15px;border-radius:5px;background:#c99b00}
.content{min-width:0}.page-head{display:flex;justify-content:space-between;gap:14px;align-items:flex-end;margin-bottom:18px}.page-head h1{font-size:27px;letter-spacing:-.03em;margin:0}.page-head p{margin:5px 0 0;color:var(--muted);font-size:12px}.head-actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px}.stat{padding:18px}.stat .value{font-size:28px;font-weight:950;letter-spacing:-.04em}.stat .label{font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:.07em;margin-top:3px}.stat .micro{font-size:10px;color:#8b95a4;margin-top:7px}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:15px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.section-title{font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:#7f8a99;margin:0 0 12px}
.list{display:grid;gap:8px}.list-item{display:flex;justify-content:space-between;gap:14px;align-items:center;padding:13px;border:1px solid var(--line);border-radius:11px;background:#fbfcfd}.list-item h4{margin:0 0 3px;font-size:13px}.list-item p{margin:0;color:var(--muted);font-size:11px}.actions{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}.badge{display:inline-flex;align-items:center;border-radius:999px;padding:5px 8px;font-size:10px;font-weight:850;background:#eef2f6;color:#536072}.badge.brand{background:#fff1aa;color:#745800}.badge.blue{background:#e8efff;color:#2449bd}.badge.green{background:#e1f5ed;color:#116f4f}.badge.red{background:#fde8eb;color:#b93447}.badge.gray{background:#edf0f4;color:#687386}
.filters{display:grid;grid-template-columns:1.4fr repeat(3,.8fr);gap:8px;margin-bottom:12px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:13px;background:#fff;box-shadow:var(--shadow-sm)}table{width:100%;border-collapse:collapse;min-width:760px;background:#fff}th,td{text-align:left;padding:11px 12px;border-bottom:1px solid #e8edf2;font-size:12px}th{background:#f6f8fa;color:#6f7a8a;font-size:9px;text-transform:uppercase;letter-spacing:.08em}tr:last-child td{border-bottom:0}tbody tr:hover{background:#fbfcfd}.truncate{max-width:340px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.modal-backdrop{position:fixed;inset:0;background:rgba(20,28,42,.38);backdrop-filter:blur(6px);display:grid;place-items:center;z-index:80;padding:18px}.modal{width:min(780px,100%);max-height:91vh;overflow:auto;background:#fff;border:1px solid #d9e0e8;border-radius:17px;box-shadow:0 30px 90px rgba(28,37,52,.22);padding:23px}.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.modal-head h2{margin:0;font-size:20px}.close{border:0;background:transparent;color:#7e8998;font-size:25px}.divider{height:1px;background:var(--line);margin:17px 0}.help{padding:11px 13px;background:#f7f9fb;border:1px solid #dde4ec;border-radius:10px;color:#657184;font-size:11px;line-height:1.55}.switchline{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line)}.switchline:last-child{border-bottom:0}
.batch-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.batch-card{padding:16px;border:1px solid var(--line);border-radius:13px;background:#fff;box-shadow:var(--shadow-sm)}.batch-card strong{font-size:18px}.batch-card .count{font-size:10px;color:var(--muted);margin-top:4px}.batch-card.active{border-color:#e2cc75;box-shadow:inset 0 0 0 1px rgba(244,196,48,.12),var(--shadow-sm)}
.exam-lobby{max-width:860px;margin:24px auto}.instruction-list{display:grid;gap:8px;margin:18px 0}.instruction{display:flex;gap:11px;padding:12px;border:1px solid var(--line);border-radius:10px;background:#fbfcfd;font-size:12px}.instruction strong{color:#9a7400;min-width:23px}.exam-shell{width:min(1020px,calc(100% - 24px));margin:18px auto 50px}.exam-top{display:grid;grid-template-columns:1fr auto auto;gap:12px;align-items:center;margin-bottom:13px}.timer-box{min-width:120px;background:#fff;border:1px solid var(--line);border-radius:11px;padding:9px 13px;text-align:center;box-shadow:var(--shadow-sm)}.timer-box .time{font-size:20px;font-weight:950;font-variant-numeric:tabular-nums}.timer-box .cap{font-size:9px;color:var(--muted);text-transform:uppercase;letter-spacing:.07em}.progress{height:6px;background:#e9edf2;border-radius:999px;overflow:hidden;margin:12px 0 20px}.progress>span{display:block;height:100%;background:linear-gradient(90deg,#f4c430,#18a36f);transition:.2s}.question-card{padding:30px}.q-meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:10px;text-transform:uppercase;letter-spacing:.05em}.q-text{font-size:23px;line-height:1.4;font-weight:850;letter-spacing:-.02em;margin:23px 0}.options{display:grid;gap:9px}.option{display:flex;gap:10px;align-items:flex-start;border:1px solid var(--line);padding:13px;border-radius:10px;background:#fff;cursor:pointer;font-size:13px}.option:hover{border-color:#c6a72f;background:#fffdf5}.question-actions{display:flex;justify-content:space-between;gap:11px;margin-top:23px}.violation-strip{font-size:10px;color:#c23d50;margin-top:5px}.exam-mode{-webkit-user-select:none;user-select:none}.exam-mode input,.exam-mode textarea{-webkit-user-select:text;user-select:text}
.result-hero{text-align:center;padding:46px 34px;max-width:720px;margin:0 auto}.submission-card{background:linear-gradient(180deg,#fff 0,#fbfdfc 100%)}.submission-check{width:84px;height:84px;border-radius:50%;display:grid;place-items:center;margin:0 auto 18px;background:#e5f7ef;color:#117452;border:1px solid #bfe8d8;font-size:40px;font-weight:900}.result-hero h1{font-size:34px;letter-spacing:-.035em;margin:12px 0 8px}.submission-name{color:#6d7888;margin:0 auto 24px;font-size:13px}.result-notice{display:flex;flex-direction:column;gap:8px;max-width:560px;margin:0 auto 26px;padding:20px 22px;border-radius:14px;background:#fff9df;border:1px solid #eedb8d;color:#564514}.result-notice strong{font-size:17px}.result-notice span{font-size:12px;line-height:1.6;color:#756836}
.toast{position:fixed;right:18px;bottom:18px;z-index:120;min-width:250px;max-width:390px;padding:12px 14px;border-radius:11px;background:#233044;color:white;border:1px solid #354154;box-shadow:var(--shadow);opacity:0;transform:translateY(12px);pointer-events:none;transition:.18s;font-size:12px}.toast.show{opacity:1;transform:none}.toast.error{background:#8d2d3a;border-color:#a63c4b}.toast.ok{background:#146d50;border-color:#1d8462}.empty{text-align:center;padding:30px;color:var(--muted);border:1px dashed var(--line);border-radius:12px;font-size:12px;background:#fbfcfd}
@media(max-width:980px){.hero{grid-template-columns:1fr}.dashboard{grid-template-columns:1fr}.sidebar{position:static;display:flex;overflow:auto}.side-brand{display:none}.nav-btn{min-width:max-content;width:auto}.stats{grid-template-columns:repeat(2,1fr)}.batch-grid{grid-template-columns:repeat(3,1fr)}.filters{grid-template-columns:1fr 1fr}.course-strip{grid-template-columns:1fr}.secure-pill{display:none}}
@media(max-width:640px){.app-shell{width:min(100% - 18px,1240px);margin-top:18px}.topbar{padding:0 12px;height:70px}.brand-sub{display:none}.brand{font-size:12px;letter-spacing:.06em}.hero-panel{padding:24px}.hero h1{font-size:40px}.form-grid,.grid-2,.grid-3{grid-template-columns:1fr}.field.full{grid-column:auto}.stats{grid-template-columns:1fr 1fr}.batch-grid{grid-template-columns:repeat(2,1fr)}.filters{grid-template-columns:1fr}.page-head{align-items:flex-start;flex-direction:column}.exam-top{grid-template-columns:1fr 1fr}.exam-top>div:first-child{grid-column:1/-1}.question-card{padding:20px}.q-text{font-size:20px}.top-actions .btn{padding:8px 10px}.footer{padding-bottom:15px}.result-hero{padding:34px 20px}.result-hero h1{font-size:28px}}