:root{--navy:#071a35;--blue:#0758d4;--cyan:#00a9d6;--ink:#14213d;--muted:#64748b;--bg:#f4f7fb;--line:#dfe7f1;--ok:#087f5b;--warn:#b7791f;--danger:#c92a2a;--white:#fff;--shadow:0 16px 40px rgba(7,26,53,.10)}
*{box-sizing:border-box}body{margin:0;font-family:Inter,Poppins,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink)}a{color:inherit}.shell{min-height:100vh;display:flex}.side{width:260px;background:linear-gradient(180deg,#071a35,#0b3d83);color:#fff;padding:22px 16px;position:fixed;inset:0 auto 0 0;overflow:auto}.side-brand{display:flex;gap:12px;align-items:center;padding:6px 8px 22px}.side-brand img{width:46px;height:46px;object-fit:contain;background:#fff;border-radius:12px;padding:4px}.side-brand strong{font-size:16px;display:block}.side-brand span{font-size:12px;opacity:.72}.nav-label{font-size:11px;text-transform:uppercase;letter-spacing:.12em;opacity:.55;margin:18px 10px 8px}.side a{display:flex;align-items:center;gap:11px;text-decoration:none;padding:11px 12px;border-radius:10px;margin:3px 0;color:#eef6ff;font-size:14px}.side a:hover,.side a.active{background:rgba(255,255,255,.12)}.main{margin-left:260px;width:calc(100% - 260px)}.top{height:68px;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 26px;position:sticky;top:0;z-index:10}.top h1{font-size:18px;margin:0}.user-chip{font-size:13px;color:var(--muted)}.content{padding:26px;max-width:1450px;margin:auto}.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:22px}.page-head h2{margin:0 0 5px;font-size:28px}.page-head p{margin:0;color:var(--muted)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 15px;border:0;border-radius:10px;text-decoration:none;cursor:pointer;font:inherit;font-weight:650}.btn-primary{background:linear-gradient(135deg,var(--blue),var(--cyan));color:white}.btn-soft{background:#eaf2ff;color:#084dba}.btn-danger{background:#fff0f0;color:var(--danger)}.btn-dark{background:var(--navy);color:#fff}.btn-sm{padding:7px 10px;font-size:12px}.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}.stat{grid-column:span 3;background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:0 8px 24px rgba(7,26,53,.06)}.stat .n{font-size:30px;font-weight:800;margin-top:9px}.stat .k{font-size:13px;color:var(--muted)}.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:0 8px 24px rgba(7,26,53,.05)}.card h3{margin:0 0 14px}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse;font-size:14px}.table th{background:#f8fafc;color:#526079;text-transform:uppercase;font-size:11px;letter-spacing:.06em;text-align:left}.table th,.table td{padding:12px 11px;border-bottom:1px solid #edf1f5;vertical-align:top}.badge{display:inline-flex;padding:5px 9px;border-radius:999px;font-size:11px;font-weight:750;background:#edf2f7;color:#475569}.badge.ok{background:#e6fcf5;color:#087f5b}.badge.warn{background:#fff4e6;color:#a15c00}.badge.info{background:#e7f5ff;color:#0758d4}.badge.danger{background:#fff0f0;color:#c92a2a}.form-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}.field{grid-column:span 6}.field.full{grid-column:1/-1}.field.third{grid-column:span 4}.field label{display:block;font-size:12px;font-weight:700;color:#475569;margin-bottom:7px}.input,.select,.textarea{width:100%;padding:11px 12px;border:1px solid #cfd9e5;border-radius:10px;background:#fff;font:inherit;color:#17233c;outline:none}.textarea{min-height:120px;resize:vertical}.input:focus,.select:focus,.textarea:focus{border-color:#4b8df8;box-shadow:0 0 0 3px rgba(75,141,248,.12)}.alert{padding:12px 14px;border-radius:10px;margin-bottom:16px;font-size:14px}.alert.ok{background:#e6fcf5;color:#087f5b}.alert.err{background:#fff0f0;color:#c92a2a}.question{border:1px solid var(--line);border-radius:14px;padding:18px;margin:14px 0}.question-title{font-weight:750;line-height:1.5}.option{display:flex;gap:9px;align-items:flex-start;padding:9px 10px;border-radius:9px;margin:5px 0;background:#f8fafc}.muted{color:var(--muted)}.actions{display:flex;gap:7px;flex-wrap:wrap}.exam-meta{display:flex;gap:10px;flex-wrap:wrap;margin:10px 0}.timer{font-variant-numeric:tabular-nums;font-weight:800;color:#b42318}.answer-box{border:1px solid var(--line);border-radius:12px;padding:15px;margin-top:12px}.score-input{width:90px}.login-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at top right,#1469e8 0,#071a35 48%,#040b18 100%)}.login-card{width:min(430px,100%);background:rgba(255,255,255,.97);border-radius:22px;padding:30px;box-shadow:0 30px 80px rgba(0,0,0,.28)}.login-logo{width:74px;height:74px;object-fit:contain;display:block;margin:0 auto 12px}.login-card h1{text-align:center;margin:0}.login-card .sub{text-align:center;color:var(--muted);margin:6px 0 22px}.login-card .field{margin-bottom:14px}.login-card .btn{width:100%}.public-link{text-align:center;margin-top:15px;font-size:13px}.public-link a{color:var(--blue)}
@media(max-width:980px){.side{width:210px}.main{margin-left:210px;width:calc(100% - 210px)}.stat{grid-column:span 6}.field,.field.third{grid-column:1/-1}}
@media(max-width:720px){.shell{display:block}.side{position:relative;width:100%;height:auto}.main{margin:0;width:100%}.top{position:relative;padding:0 16px}.content{padding:18px}.stat{grid-column:1/-1}.page-head{align-items:flex-start;flex-direction:column}.form-grid{display:block}.field{margin-bottom:14px}}
