:root{
  --primary:#0e7490; --primary-d:#0b5c72; --accent:#f59e0b;
  --bg:#f6f8fa; --card:#ffffff; --ink:#0f172a; --muted:#64748b;
  --ok:#16a34a; --bad:#dc2626; --line:#e2e8f0; --radius:14px;
  --shadow:0 1px 3px rgba(15,23,42,.08),0 8px 24px rgba(15,23,42,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"Segoe UI",Tahoma,system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  background:var(--bg); color:var(--ink); line-height:1.6;
  -webkit-text-size-adjust:100%;
}
body[dir="rtl"]{text-align:right}
.wrap{max-width:760px;margin:0 auto;padding:16px}
.topbar{
  background:linear-gradient(135deg,var(--primary),var(--primary-d));
  color:#fff;padding:14px 16px;position:sticky;top:0;z-index:10;
  box-shadow:var(--shadow)
}
.topbar .wrap{padding:0 16px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.topbar h1{font-size:1.05rem;margin:0;font-weight:700}
.topbar .teacher{font-size:.85rem;opacity:.95}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin:14px 0}
.card h2{margin:.1rem 0 .6rem;font-size:1.15rem}
.muted{color:var(--muted)}
.small{font-size:.85rem}
label{display:block;font-weight:600;margin:.5rem 0 .25rem}
select,input[type=text],input[type=password],input[type=number],input[type=datetime-local]{
  width:100%;padding:12px;border:1px solid var(--line);border-radius:10px;font-size:1rem;background:#fff;color:var(--ink)
}
input[dir=ltr]{direction:ltr;text-align:left}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--primary);color:#fff;border:0;border-radius:10px;
  padding:12px 18px;font-size:1rem;font-weight:700;cursor:pointer;width:100%
}
.btn:active{transform:translateY(1px)}
.btn.secondary{background:#eef2f5;color:var(--ink);border:1px solid var(--line)}
.btn.accent{background:var(--accent);color:#3a2a00}
.btn:disabled{opacity:.55;cursor:not-allowed}
.row{display:flex;gap:10px;flex-wrap:wrap}
.row>*{flex:1}
.pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.78rem;font-weight:700}
.pill.activity{background:#e0f2fe;color:#075985}
.pill.formative{background:#fef3c7;color:#92400e}
.q{border:1px solid var(--line);border-radius:12px;padding:14px;margin:12px 0;background:#fff}
.q .prompt{font-weight:700;margin-bottom:10px}
.q .prompt .en{direction:ltr;unicode-bidi:isolate}
.opt{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;margin:8px 0;cursor:pointer;background:#fff}
.opt:hover{border-color:var(--primary)}
.opt input{width:auto;margin:0}
.opt.correct{border-color:var(--ok);background:#f0fdf4}
.opt.wrong{border-color:var(--bad);background:#fef2f2}
.banner{padding:12px 14px;border-radius:10px;margin:10px 0;font-weight:600}
.banner.err{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}
.banner.ok{background:#f0fdf4;color:#166534;border:1px solid #bbf7d0}
.banner.info{background:#eff6ff;color:#1e40af;border:1px solid #bfdbfe}
.result-score{font-size:2.6rem;font-weight:800;color:var(--primary);text-align:center}
.band{text-align:center;font-size:1.4rem;font-weight:800;margin:.3rem 0}
.band.excellent{color:var(--ok)} .band.good{color:var(--primary)} .band.needs_review{color:var(--accent)}
.lb{list-style:none;padding:0;margin:10px 0}
.lb li{display:flex;align-items:center;gap:12px;padding:10px;border:1px solid var(--line);border-radius:10px;margin:6px 0}
.lb .medal{font-size:1.4rem}
table{width:100%;border-collapse:collapse;font-size:.9rem}
th,td{padding:8px;border-bottom:1px solid var(--line);text-align:inherit}
th{color:var(--muted);font-weight:700}
.flag{padding:2px 8px;border-radius:999px;font-size:.75rem;font-weight:700}
.flag.ok{background:#f0fdf4;color:#166534}
.flag.needs_reminder{background:#fef3c7;color:#92400e}
.flag.suggest_counselor{background:#fee2e2;color:#991b1b}
.foot{text-align:center;color:var(--muted);font-size:.8rem;padding:18px}
.tabbar{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px}
.tabbar button{flex:none;padding:8px 14px;border:1px solid var(--line);background:#fff;border-radius:999px;cursor:pointer;font-weight:600}
.tabbar button.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.hidden{display:none!important}
.chip{display:inline-block;background:#eef2f5;border:1px solid var(--line);border-radius:8px;padding:4px 8px;margin:3px;font-size:.85rem}
code.link{display:block;word-break:break-all;background:#0f172a;color:#e2e8f0;padding:10px;border-radius:8px;font-size:.8rem}

/* PIN sheet print */
@media print{
  .topbar,.no-print{display:none!important}
  body{background:#fff}
  .pinsheet{page-break-inside:avoid}
}
.pinsheet table{border:1px solid #000}
.pinsheet th,.pinsheet td{border:1px solid #999}