/* Tessera Analytics: theme tokens (light / dark), fonts, page chrome. Shared by every section and the login page.
   Fonts: Archivo (text) and IBM Plex Mono (numbers) from Google Fonts, linked in each page head; system fallbacks. */
:root {
  color-scheme: light;
  --bg: #F5F7F8; --surface: #FFFFFF; --sunken: #F8FAFB;
  --ink: #10181D; --ink-2: #3A4750; --muted: #63727D;
  --hair: #E1E6E9; --grid: #EAEEF0;
  --s1: #0B6E99; --s2: #B45309;
  --s1-soft: rgba(11,110,153,.13); --s1-soft-0: rgba(11,110,153,0);
  --band: rgba(84,99,110,.075); --band-edge: rgba(84,99,110,.28);
  --chip: #F1F4F6; --hl: rgba(11,110,153,.09);
  --tk-oai: #4a3aa7; --tk-kal: #1baf7a; --tk-spx: #eda100; --tk-other: #8E9DA8;
  --err: #B42318; --err-soft: rgba(180,35,24,.08);
  --warn: #8A5300; --warn-soft: rgba(237,161,0,.12); --warn-line: rgba(237,161,0,.45);
  --shadow: 0 1px 2px rgba(16,24,29,.05), 0 8px 24px rgba(16,24,29,.05);
  --font: "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0D1418; --surface: #141D23; --sunken: #10181D;
    --ink: #E9EEF1; --ink-2: #BAC6CE; --muted: #8E9DA8;
    --hair: #23303A; --grid: #1D2932;
    --s1: #3D92C0; --s2: #C4802B;
    --s1-soft: rgba(61,146,192,.18); --s1-soft-0: rgba(61,146,192,0);
    --band: rgba(160,176,188,.07); --band-edge: rgba(160,176,188,.25);
    --chip: #1B262E; --hl: rgba(61,146,192,.14);
    --tk-oai: #9085e9; --tk-kal: #199e70; --tk-spx: #c98500; --tk-other: #63727D;
    --err: #F97066; --err-soft: rgba(249,112,102,.1);
    --warn: #F5B94A; --warn-soft: rgba(245,185,74,.12); --warn-line: rgba(245,185,74,.4);
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.28);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0D1418; --surface: #141D23; --sunken: #10181D;
  --ink: #E9EEF1; --ink-2: #BAC6CE; --muted: #8E9DA8;
  --hair: #23303A; --grid: #1D2932;
  --s1: #3D92C0; --s2: #C4802B;
  --s1-soft: rgba(61,146,192,.18); --s1-soft-0: rgba(61,146,192,0);
  --band: rgba(160,176,188,.07); --band-edge: rgba(160,176,188,.25);
  --chip: #1B262E; --hl: rgba(61,146,192,.14);
  --tk-oai: #9085e9; --tk-kal: #199e70; --tk-spx: #c98500; --tk-other: #63727D;
  --err: #F97066; --err-soft: rgba(249,112,102,.1);
  --warn: #F5B94A; --warn-soft: rgba(245,185,74,.12); --warn-line: rgba(245,185,74,.4);
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.28);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font); font-size: 15px; line-height: 1.5; }
[hidden] { display: none !important; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* top nav */
.topnav { position: sticky; top: 0; z-index: 10; background: var(--surface); border-bottom: 1px solid var(--hair); }
.topnav .in { max-width: 1120px; margin: 0 auto; padding: 0 16px; height: 52px; display: flex; align-items: center; gap: 18px; }
.brand { font-weight: 700; font-size: 15px; letter-spacing: -.01em; color: var(--ink); text-decoration: none; white-space: nowrap; }
.brand b { display: inline-block; width: 10px; height: 10px; border-radius: 3px; background: var(--s1); margin-right: 8px; vertical-align: 0; }
.tabs { display: flex; gap: 4px; height: 100%; overflow-x: auto; scrollbar-width: none; }
.tabs a { display: inline-flex; align-items: center; height: 100%; padding: 0 10px; font-size: 14px; font-weight: 600; color: var(--muted); text-decoration: none; border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; }
.tabs a:hover { color: var(--ink); }
.tabs a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--s1); }
.navright { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.iconbtn { font: inherit; font-size: 13px; font-weight: 600; color: var(--ink-2); background: transparent; border: 1px solid transparent; border-radius: 8px; padding: 5px 9px; cursor: pointer; white-space: nowrap; }
.iconbtn:hover { border-color: var(--hair); background: var(--chip); }
.iconbtn:focus-visible, .tabs a:focus-visible { outline: 2px solid var(--s1); outline-offset: 1px; }
.navright form { margin: 0; }
@media (max-width: 480px) { .topnav .in { gap: 10px; } .brand span.long { display: none; } }

/* page */
.page { max-width: 1120px; margin: 0 auto; padding: 28px 16px 56px; display: flex; flex-direction: column; gap: 18px; }
.eyebrow { font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); font-weight: 600; margin: 0; }
h1 { font-size: clamp(24px, 4.2vw, 34px); line-height: 1.15; letter-spacing: -.02em; font-weight: 700; margin: 6px 0 0; text-wrap: balance; }
.sub { color: var(--muted); margin: 6px 0 0; font-size: 14px; }
.lbl { font-size: 11.5px; letter-spacing: .07em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.note { color: var(--muted); font-size: 13px; margin: 0; }

.card { background: var(--surface); border: 1px solid var(--hair); border-radius: 12px; box-shadow: var(--shadow); padding: 16px 18px 12px; }
@media (max-width: 480px) { .card { padding: 12px 12px 10px; } }

.chip { display: inline-flex; align-items: center; gap: 7px; font: inherit; font-size: 13px; font-weight: 500; color: var(--ink-2); background: var(--chip); border: 1px solid transparent; border-radius: 999px; padding: 6px 13px; cursor: pointer; }
.chip:hover { border-color: var(--hair); }
.chip:focus-visible, .seg button:focus-visible { outline: 2px solid var(--s1); outline-offset: 2px; }
.chip[aria-pressed="true"] { background: var(--surface); border-color: var(--hair); color: var(--ink); box-shadow: 0 1px 2px rgba(0,0,0,.06); }
.chip .swatch { width: 11px; height: 11px; border-radius: 3px; background: var(--muted); flex: none; }

.seg { display: inline-flex; background: var(--chip); border-radius: 9px; padding: 3px; gap: 2px; }
.seg button { font: inherit; font-size: 13px; font-weight: 600; color: var(--muted); background: transparent; border: 0; border-radius: 7px; padding: 5px 12px; cursor: pointer; }
.seg button[aria-pressed="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 1px 2px rgba(0,0,0,.08); }

.stats { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1px; background: var(--hair); border: 1px solid var(--hair); border-radius: 10px; overflow: hidden; margin: 0; }
.stat { background: var(--surface); padding: 14px 16px; min-width: 0; }
.stat dt { font-size: 11.5px; letter-spacing: .07em; text-transform: uppercase; color: var(--muted); font-weight: 600; margin: 0; }
.stat dd { margin: 4px 0 0; font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: clamp(16px, 2.4vw, 21px); font-weight: 500; letter-spacing: -.01em; }
.stat dd small { display: block; font-family: var(--font); font-size: 12px; color: var(--muted); font-weight: 400; letter-spacing: 0; margin-top: 2px; }
@media (max-width: 720px) { .stats { grid-template-columns: repeat(2, minmax(0,1fr)); } .stat { padding: 12px 12px; } }

details > summary { cursor: pointer; list-style: none; }
details > summary::-webkit-details-marker { display: none; }
.btn-sum { font-size: 13px; font-weight: 600; color: var(--ink-2); padding: 5px 10px; border: 1px solid var(--hair); border-radius: 7px; background: var(--surface); display: inline-block; }
.table-scroll { overflow-x: auto; margin-top: 12px; max-height: 420px; }
table { border-collapse: collapse; font-size: 13px; width: 100%; }
th, td { text-align: right; padding: 5px 12px; border-bottom: 1px solid var(--grid); white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
th { color: var(--muted); font-size: 11.5px; letter-spacing: .06em; text-transform: uppercase; position: sticky; top: 0; background: var(--surface); }
td.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* loading / error states */
.state { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; min-height: 260px; text-align: center; color: var(--muted); font-size: 14px; padding: 24px 12px; }
.state.err { color: var(--err); }
.state .spin { width: 22px; height: 22px; border-radius: 50%; border: 2.5px solid var(--hair); border-top-color: var(--s1); animation: spin .8s linear infinite; }
.state button { font: inherit; font-size: 13px; font-weight: 600; color: var(--ink); background: var(--chip); border: 1px solid var(--hair); border-radius: 8px; padding: 6px 14px; cursor: pointer; }
.banner { font-size: 13px; color: var(--err); background: var(--err-soft); border: 1px solid var(--hair); border-radius: 8px; padding: 8px 11px; }
.banner.warn { color: var(--warn); background: var(--warn-soft); border-color: var(--warn-line); padding: 6px 11px; margin: 0 0 8px; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .state .spin { animation-duration: 2.4s; } }