/* NTU / NBS palette: NTU Blue #181C62 (primary), NTU Red #D71440 (accent), Secondary Blue Dark #0054A6 (links, actions) */
:root {
  --ntu-blue: #181C62;
  --ntu-red: #D71440;
  --ntu-blue-2: #0054A6;
  --bg: #f3f4f8;
  --surface: #ffffff;
  --text: #1c1f2e;
  --muted: #667085;
  --line: #e3e6ee;
  --primary: var(--ntu-blue-2);
  --primary-ink: #ffffff;
  --accent: var(--ntu-red);
  --danger: var(--ntu-red);
  --warn-bg: #fff5f7;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .1);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.45; }
a { color: var(--primary); text-decoration: none; }
h1 { font-size: 22px; margin: 0 0 6px; }
h2 { font-size: 15px; margin: 0 0 12px; font-weight: 600; }
h3 { font-size: 13px; margin: 14px 0 6px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
code { background: #eef0f4; padding: 1px 5px; border-radius: 4px; font-size: 12px; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.error { color: var(--danger); margin: 8px 0; }

/* ---------- login */
.login { min-height: calc(100vh - 58px); display: grid; place-items: center; padding: 16px;
  background: linear-gradient(160deg, var(--ntu-blue) 0%, #23287a 55%, var(--ntu-blue-2) 100%); }
.login-card { width: 100%; max-width: 400px; padding: 28px 30px; }
.login-card .logo { height: 44px; margin-bottom: 18px; display: block; }
.login-card h1 { color: var(--ntu-blue); }
label { display: block; margin: 12px 0 4px; font-weight: 500; }
label input, label select { margin-top: 4px; }
input[type=text], input[type=email], input[type=password], input[type=search], input[type=file], select {
  width: 100%; padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px; background: #fff; font: inherit; color: var(--text);
}
input:focus, select:focus { outline: 2px solid color-mix(in srgb, var(--primary) 30%, transparent); border-color: var(--primary); }
.checkbox { display: flex; align-items: center; gap: 8px; font-weight: 400; margin: 10px 0; }
.checkbox input { width: auto; }
button { font: inherit; padding: 9px 14px; border-radius: 8px; border: 1px solid var(--line); background: #fff; color: var(--text); cursor: pointer; }
button:hover { border-color: #c9ccd3; }
button.primary { background: var(--primary); color: var(--primary-ink); border-color: var(--primary); }
button.primary:disabled { opacity: .6; cursor: progress; }
button.link { border: none; background: none; color: var(--primary); padding: 4px 6px; }

/* ---------- shell */
/* top bar + section tabs: see /nav.css */
main { max-width: 1240px; margin: 0 auto; padding: 20px 16px 60px; }
.page { display: none; }
.page.active { display: block; }
.card { background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px 20px; margin-bottom: 18px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 900px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

/* ---------- tiles */
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 18px; }
.tile { background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow); padding: 14px 16px; }
.tile { border-top: 3px solid var(--ntu-blue); }
.tile .n { font-size: 26px; font-weight: 700; letter-spacing: -.02em; color: var(--ntu-blue); }
.tile .l { color: var(--muted); font-size: 12px; }

/* ---------- tables */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.table th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; white-space: nowrap; }
.table td.num, .table th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.table.compact td, .table.compact th { padding: 4px 8px; }
.table.clickable tbody tr { cursor: pointer; }
.table.clickable tbody tr:hover { background: #f7f8fb; }
.pill { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; background: #eef0f4; color: var(--muted); vertical-align: middle; }
.pill.ok { background: #dcfce7; color: #166534; }
.pill.bad { background: #fee2e2; color: #991b1b; }
.pill.tier { background: #fde8ec; color: var(--ntu-red); }
h2 { color: var(--ntu-blue); }
.filters { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 12px; }
.filters input[type=search] { width: 220px; }
.filters input.wide { flex: 1; min-width: 260px; }
.filters select { width: auto; }
.pager { display: flex; gap: 8px; align-items: center; justify-content: flex-end; margin-top: 10px; color: var(--muted); }
.actions { display: flex; gap: 8px; margin-top: 12px; }

/* ---------- bars */
.bars { display: grid; gap: 6px; }
.bar-row { display: grid; grid-template-columns: 44px 1fr 44px; align-items: center; gap: 8px; font-variant-numeric: tabular-nums; }
.bar { height: 14px; border-radius: 4px; background: linear-gradient(90deg, var(--ntu-blue), var(--ntu-blue-2)); }

/* ---------- warnings */
details.warn { border: 1px solid #f5c6d0; border-left: 4px solid var(--ntu-red); background: var(--warn-bg); border-radius: 8px; padding: 6px 12px; margin-bottom: 8px; }
details.warn summary { cursor: pointer; font-weight: 600; }
details.warn table { margin-top: 8px; background: #fff; }

/* ---------- search results */
.results { display: grid; gap: 12px; margin-top: 12px; }
.result { border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; }
.result .head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.result .name { font-weight: 600; font-size: 15px; cursor: pointer; color: var(--primary); }
.result ul { margin: 8px 0 0; padding-left: 18px; color: #374151; }
.result li span.kind { color: var(--muted); font-size: 12px; }

/* ---------- drawer */
.drawer { position: fixed; inset: 0; background: rgba(16, 24, 40, .35); z-index: 20; }
.drawer-panel { position: absolute; top: 0; right: 0; bottom: 0; width: min(720px, 100%); background: var(--surface); overflow: auto; padding: 20px 24px; box-shadow: -8px 0 24px rgba(0,0,0,.15); }
.drawer .close { position: absolute; top: 10px; right: 12px; font-size: 16px; }
.drawer h2 { margin-top: 0; font-size: 18px; }
.drawer-panel { border-top: 4px solid var(--ntu-red); }
.drawer .counts { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 16px; }