/* =========================
   CLA96G Unified LMS Styles
   ========================= */

:root{
  --primary:#0f62fe;
  --bg:#0b1220;
  --card:#121a2b;
  --text:#e6edf6;
  --muted:#9aa8bd;
  --border:rgba(255,255,255,.12);
  --success:#42be65;
  --danger:#fa4d56;
  --warning:#f1c21b;
  --shadow:0 12px 40px rgba(0,0,0,.35);
}

*{box-sizing:border-box;margin:0;padding:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}

body{
  background: radial-gradient(900px 600px at 15% 10%, rgba(15,98,254,.22), transparent 60%),
              radial-gradient(800px 500px at 85% 30%, rgba(66,190,101,.18), transparent 60%),
              var(--bg);
  color:var(--text);
}

nav{
  padding:12px 18px;
  border-bottom:1px solid var(--border);
  position:sticky; top:0;
  background:rgba(11,18,32,.85);
  backdrop-filter: blur(8px);
  z-index:50;
}

nav a{
  color:#b6c8ff;
  text-decoration:none;
  margin-right:14px;
  font-size:13px;
  white-space:nowrap;
}
nav a:hover{ text-decoration:underline; }

header{
  padding:34px 18px 18px;
  border-bottom:1px solid var(--border);
  text-align:center;
}
header h1{font-size:22px}
header p{color:var(--muted);margin-top:8px;line-height:1.4}

.wrap{
  max-width:1100px;
  margin:0 auto;
  padding:18px;
}

.card{
  background:rgba(18,26,43,.92);
  border:1px solid var(--border);
  border-radius:16px;
  box-shadow:var(--shadow);
  padding:16px;
  margin-bottom:16px;
}

.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center;justify-content:space-between}

.badges{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 10px;border-radius:999px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.06);
  color:var(--muted);
  font-size:12px;
}
.badge strong{color:var(--text)}

button{
  cursor:pointer;
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.08);
  color:var(--text);
  padding:10px 14px;
  border-radius:12px;
  font-weight:700;
}

button.primary{
  background:linear-gradient(135deg, rgba(15,98,254,.3), rgba(182,200,255,.15));
  border-color:rgba(15,98,254,.4);
}

button.danger{
  background:rgba(250,77,86,.15);
  border-color:rgba(250,77,86,.4);
}

button:disabled{opacity:.55; cursor:not-allowed}

.progress-bar{
  height:10px;
  background:rgba(255,255,255,.1);
  border-radius:999px;
  overflow:hidden;
}
.progress-bar span{
  display:block;
  height:100%;
  width:0%;
  background:linear-gradient(90deg, var(--primary), var(--success));
}

.grid{display:grid; gap:16px}

.unitHeader{
  display:flex; align-items:center; justify-content:space-between;
  cursor:pointer; user-select:none;
  gap:12px;
}
.unitHeader h2{font-size:16px}
.unitMeta{margin-top:6px;color:var(--muted);font-size:13px;line-height:1.45}

.tog{
  width:34px;height:34px;display:grid;place-items:center;
  border-radius:10px;border:1px solid var(--border);
  background:rgba(255,255,255,.06);
  color:var(--primary);
  font-weight:900;
  transition:transform .2s ease;
}

.unitBody{max-height:0; overflow:hidden; transition:max-height .35s ease}
.card.active .unitBody{max-height:9999px; margin-top:12px}
.card.active .tog{transform:rotate(45deg)}

.cols{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:12px}
@media(max-width:900px){.cols{grid-template-columns:1fr}}

.panel{
  border:1px solid var(--border);
  border-radius:14px;
  background:rgba(0,0,0,.18);
  padding:12px;
}
.panel h3{font-size:13px;margin-bottom:8px;color:var(--text)}
.panel ul{margin-left:18px;color:var(--muted);font-size:13px;line-height:1.45}
.panel li{margin-bottom:6px}

.quiz{
  margin-top:12px;
  border:1px solid var(--border);
  background:rgba(0,0,0,.18);
  border-radius:14px;
  padding:12px;
}
.quiz h3{font-size:13px;margin-bottom:10px}
.q{
  padding:12px;
  border:1px solid rgba(255,255,255,.10);
  border-radius:12px;
  background:rgba(255,255,255,.04);
  margin-bottom:10px;
}
.q:last-child{margin-bottom:0}
.q p{font-weight:800; font-size:13px; margin-bottom:10px; line-height:1.35}

.opt{
  display:flex; gap:10px; align-items:flex-start;
  padding:10px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.05);
  cursor:pointer;
  margin-bottom:8px;
  color:var(--muted);
  font-size:13px;
}
.opt:hover{background:rgba(255,255,255,.08)}
.opt input{margin-top:2px; accent-color:var(--primary)}
.fb{margin-top:8px;font-size:12px;color:var(--muted);line-height:1.45}
.fb.good{color:var(--success);font-weight:900}
.fb.bad{color:var(--danger);font-weight:900}

.notice{
  margin-top:10px;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.05);
  color:var(--muted);
  font-size:12px;
  line-height:1.45;
}

.timerBox{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  padding:6px 10px;border-radius:12px;border:1px solid var(--border);
  background:rgba(0,0,0,.18);
  display:none;
}

.table{
  width:100%;
  border-collapse:collapse;
  font-size:13px;
}
.table th,.table td{
  border-bottom:1px solid rgba(255,255,255,.10);
  padding:10px 8px;
  text-align:left;
}
.table th{color:rgba(255,255,255,.75); font-weight:800}

@media print{
  nav, button, .no-print { display:none !important; }
  body{ background:#fff !important; color:#000 !important; }
  .card{ box-shadow:none !important; background:#fff !important; }
  .unitBody{ max-height:none !important; overflow:visible !important; }
}