:root{
  --bg:#f5f8ff;
  --panel:#ffffff;
  --panel-2:#f8fbff;
  --muted:#64748b;
  --text:#14213d;
  --line:#d9e3f2;
  --accent:#2563eb;
  --accent-2:#60a5fa;
  --good:#16a34a;
  --warn:#d97706;
  --danger:#dc2626;
  --shadow:0 18px 45px rgba(27,45,94,.08);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:Arial,Helvetica,sans-serif;background:linear-gradient(180deg,#f8fbff,#eef4ff 42%,#f5f8ff);color:var(--text)}
a{text-decoration:none;color:inherit}
.container{max-width:1200px;margin:0 auto;padding:20px}
.topbar{display:flex;gap:12px;align-items:center;justify-content:space-between;margin-bottom:18px;flex-wrap:wrap}
.brand{display:flex;gap:14px;align-items:center}
.badge-logo{width:54px;height:54px;border-radius:18px;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;box-shadow:var(--shadow)}
.brand h1{font-size:20px;margin:0 0 4px}
.brand p{margin:0;color:var(--muted);font-size:13px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:linear-gradient(135deg,var(--accent),#1d4ed8);border:none;color:#fff;padding:12px 16px;border-radius:14px;font-weight:700;cursor:pointer;box-shadow:var(--shadow)}
.btn.secondary{background:#fff;border:1px solid var(--line);box-shadow:none;color:var(--text)}
.btn.small{padding:9px 12px;border-radius:10px;font-size:13px}
.hero{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;margin-bottom:18px}
.card{background:linear-gradient(180deg,#ffffff,#fbfdff);border:1px solid var(--line);border-radius:24px;padding:18px;box-shadow:var(--shadow)}
.card h2,.card h3{margin-top:0}
.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.subject-card{position:relative;overflow:hidden}
.subject-card:before{content:'';position:absolute;right:-25px;top:-25px;width:90px;height:90px;border-radius:50%;background:radial-gradient(circle,rgba(96,165,250,.18),transparent 65%)}
.subject-card h3{margin:0 0 8px;font-size:18px}
.subject-card p{margin:0 0 14px;color:var(--muted);font-size:13px;line-height:1.5}
.meta{display:flex;gap:10px;flex-wrap:wrap}
.meta span{font-size:12px;padding:6px 10px;border-radius:999px;background:#f8fbff;border:1px solid var(--line);color:var(--muted)}
.info-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.info-item{padding:12px;border-radius:16px;background:#f8fbff;border:1px solid var(--line)}
.info-item strong{display:block;font-size:22px;margin-bottom:4px}
.kop{padding:16px;border:1px dashed #bfd2f1;border-radius:20px;background:#f8fbff;text-align:center;margin-bottom:18px}
.kop h2{margin:0 0 6px;font-size:22px}
.kop p{margin:0;color:var(--muted)}
.exam-layout{display:grid;grid-template-columns:340px 1fr;gap:18px}
.sticky{position:sticky;top:18px}
.form-group{margin-bottom:14px}
label{display:block;margin-bottom:8px;font-weight:700;font-size:14px}
input[type=text], select, textarea{width:100%;padding:12px 14px;border-radius:14px;border:1px solid var(--line);background:#fff;color:var(--text);outline:none}
.instructions li{margin-bottom:8px;color:var(--muted)}
.camera-box{background:#f8fbff;border-radius:18px;padding:12px;border:1px solid var(--line)}
video,canvas,.photo-preview{width:100%;border-radius:14px;background:#dbe8ff;display:block}
.photo-preview{min-height:210px;object-fit:cover}
.status{font-size:12px;margin-top:8px;color:var(--muted)}
.question-card{margin-bottom:14px}
.question-title{font-weight:700;line-height:1.55}
.option-list{display:grid;gap:10px;margin-top:12px}
.option-item{border:1px solid var(--line);background:#fcfdff;padding:12px 14px;border-radius:14px}
.option-item label{display:flex;gap:10px;align-items:flex-start;margin:0;font-weight:400}
.option-item input{margin-top:3px}
.story-box{padding:16px;border-left:4px solid var(--accent);border-radius:18px;background:#edf5ff;margin-bottom:16px;line-height:1.7}
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse;min-width:900px}
th,td{padding:12px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{font-size:13px;color:#47617f;background:#f8fbff;position:sticky;top:0}
td{font-size:14px}
.pill{display:inline-block;padding:6px 10px;border-radius:999px;background:#e7f8ee;color:#0f7a36;border:1px solid #b7ebca}
.score-big{font-size:46px;font-weight:800;line-height:1;margin:4px 0 10px}
.center{text-align:center}
.footer-note{margin-top:18px;color:var(--muted);font-size:12px;text-align:center}
@media (max-width: 980px){
  .hero,.exam-layout{grid-template-columns:1fr}
  .grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sticky{position:static}
}
@media (max-width: 640px){
  .container{padding:14px}
  .grid,.info-list{grid-template-columns:1fr}
  .brand h1{font-size:17px}
  .kop h2{font-size:18px}
  .card{padding:15px;border-radius:18px}
  .btn{width:100%}
  .topbar .btn{width:auto}
}