/* SENTINEL dashboard — dark professional theme.
   Colors follow the validated dark-mode viz palette:
   surface #1a1a19 · page #0d0d0d · ink #fff/#c3c2b7/#898781
   series blue #3987e5 · status good #0ca30c · critical #d03b3b */

:root {
  color-scheme: dark;
  --page: #0d0d0d;
  --surface: #1a1a19;
  --surface-2: #222221;
  --ink: #ffffff;
  --ink-2: #c3c2b7;
  --muted: #898781;
  --grid: #2c2c2a;
  --line: #383835;
  --blue: #3987e5;
  --good: #0ca30c;
  --warn: #fab219;
  --serious: #ec835a;
  --crit: #d03b3b;
  --ring: rgba(255,255,255,0.10);
  --radius: 10px;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--page); color: var(--ink); font-size: 14.5px; line-height: 1.5; }

/* ---------- login ---------- */
.login-body { display: flex; min-height: 100vh; align-items: center; justify-content: center; }
.login-card { background: var(--surface); border: 1px solid var(--ring); border-radius: 14px;
  padding: 36px 32px; width: 340px; display: flex; flex-direction: column; gap: 12px; }
.login-logo { font-size: 24px; font-weight: 700; letter-spacing: 4px; }
.login-sub { color: var(--muted); font-size: 12.5px; margin-bottom: 8px; }
.login-card input { background: var(--surface-2); border: 1px solid var(--line); color: var(--ink);
  border-radius: 8px; padding: 11px 12px; font-size: 15px; }
.login-card button { background: var(--blue); color: #fff; border: 0; border-radius: 8px;
  padding: 11px; font-size: 15px; font-weight: 600; cursor: pointer; }
.login-err { color: var(--crit); font-size: 13px; }
.login-note { color: var(--muted); font-size: 11px; text-align: center; margin-top: 6px; }

/* ---------- shell ---------- */
header.topbar { display: flex; align-items: center; gap: 14px; padding: 12px 20px;
  border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--page); z-index: 5;
  flex-wrap: wrap; }
.logo { font-weight: 700; letter-spacing: 3px; font-size: 16px; }
.logo small { color: var(--muted); font-weight: 400; letter-spacing: 0; margin-left: 8px; }
nav.tabs { display: flex; gap: 4px; flex-wrap: wrap; }
nav.tabs button { background: transparent; color: var(--ink-2); border: 0; padding: 8px 14px;
  border-radius: 8px; cursor: pointer; font-size: 14px; }
nav.tabs button.active { background: var(--surface-2); color: var(--ink); font-weight: 600; }
.spacer { flex: 1; }
.pill { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line);
  border-radius: 999px; padding: 4px 12px; font-size: 12.5px; color: var(--ink-2); }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot.ok { background: var(--good); } .dot.bad { background: var(--crit); } .dot.warn { background: var(--warn); }
.btn { background: var(--surface-2); border: 1px solid var(--line); color: var(--ink);
  border-radius: 8px; padding: 7px 14px; cursor: pointer; font-size: 13.5px; }
.btn.primary { background: var(--blue); border-color: var(--blue); font-weight: 600; }
.btn:disabled { opacity: .5; cursor: default; }

main { max-width: 1180px; margin: 0 auto; padding: 20px; }
section.tab { display: none; }
section.tab.active { display: block; }
h2 { font-size: 17px; margin: 26px 0 12px; }
h2:first-child { margin-top: 0; }
.grid { display: grid; gap: 14px; }
.grid.cols-2 { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }

.card { background: var(--surface); border: 1px solid var(--ring); border-radius: var(--radius); padding: 16px; }
.card h3 { margin: 0 0 8px; font-size: 14.5px; }
.card .sub { color: var(--muted); font-size: 12.5px; }

/* stat tiles */
.tile { background: var(--surface); border: 1px solid var(--ring); border-radius: var(--radius); padding: 14px 16px; }
.tile .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .6px; }
.tile .value { font-size: 26px; font-weight: 700; margin-top: 2px; }
.tile .hint { color: var(--ink-2); font-size: 12px; margin-top: 2px; }
.value.pos { color: var(--good); } .value.neg { color: var(--crit); }

/* watchlist & signals */
table.data { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.data th { text-align: left; color: var(--muted); font-weight: 500; padding: 8px 10px;
  border-bottom: 1px solid var(--line); font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
table.data td { padding: 9px 10px; border-bottom: 1px solid var(--grid); vertical-align: top;
  font-variant-numeric: tabular-nums; }
.tag { display: inline-block; border-radius: 6px; padding: 2px 8px; font-size: 11.5px; font-weight: 600; }
.tag.long { background: rgba(12,163,12,.15); color: var(--good); }
.tag.short { background: rgba(208,59,59,.15); color: var(--crit); }
.tag.none { background: var(--surface-2); color: var(--muted); }
.tag.status { background: var(--surface-2); color: var(--ink-2); }

.reco { border-left: 3px solid var(--blue); }
.reco.long { border-left-color: var(--good); }
.reco.short { border-left-color: var(--crit); }
.reco .head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.reco .sym { font-size: 18px; font-weight: 700; }
.levels { display: flex; gap: 18px; flex-wrap: wrap; margin: 10px 0; font-variant-numeric: tabular-nums; }
.levels div { font-size: 13px; color: var(--ink-2); }
.levels b { display: block; color: var(--ink); font-size: 15px; }
.conf-meter { height: 6px; background: var(--surface-2); border-radius: 3px; overflow: hidden; margin: 6px 0 2px; }
.conf-meter i { display: block; height: 100%; background: var(--blue); border-radius: 3px; }
.evidence { margin: 8px 0 0; padding: 0; list-style: none; font-size: 13px; }
.evidence li { padding: 3px 0 3px 22px; position: relative; color: var(--ink-2); }
.evidence li::before { position: absolute; left: 0; font-weight: 700; }
.evidence li.for::before { content: "✓"; color: var(--good); }
.evidence li.against::before { content: "✗"; color: var(--crit); }
.thesis { font-size: 13.5px; color: var(--ink-2); margin: 8px 0; }
.invalid { font-size: 12.5px; color: var(--serious); }
.muted { color: var(--muted); } .small { font-size: 12.5px; }

/* charts */
.chart-wrap { position: relative; }
canvas.chart { width: 100%; height: 340px; display: block; background: var(--surface);
  border: 1px solid var(--ring); border-radius: var(--radius); }
canvas.spark { width: 100%; height: 160px; display: block; background: var(--surface);
  border: 1px solid var(--ring); border-radius: var(--radius); }
.tooltip { position: absolute; pointer-events: none; background: var(--surface-2);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font-size: 12px;
  color: var(--ink-2); display: none; z-index: 4; font-variant-numeric: tabular-nums; white-space: nowrap; }
select, input[type=text], input[type=number], textarea {
  background: var(--surface-2); border: 1px solid var(--line); color: var(--ink);
  border-radius: 8px; padding: 8px 10px; font-size: 13.5px; }
.controls { display: flex; gap: 10px; align-items: center; margin-bottom: 12px; flex-wrap: wrap; }

/* learn */
details.learn { background: var(--surface); border: 1px solid var(--ring); border-radius: var(--radius);
  margin-bottom: 10px; padding: 4px 16px; }
details.learn summary { cursor: pointer; font-weight: 600; padding: 10px 0; font-size: 14.5px; }
details.learn .body { padding: 0 0 14px; color: var(--ink-2); font-size: 13.5px; }
.learn-row { margin: 8px 0; }
.learn-row b { color: var(--ink); }
.danger-note { color: var(--serious); }

.banner { border-radius: var(--radius); padding: 12px 16px; margin-bottom: 14px; font-size: 13.5px;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink-2); }
.banner.closed { border-color: rgba(250,178,25,.4); }
.banner.open { border-color: rgba(12,163,12,.4); }

footer { color: var(--muted); font-size: 11.5px; text-align: center; padding: 24px; }
@media (max-width: 640px) {
  main { padding: 12px; }
  .levels { gap: 12px; }
}