/* ============================================================
   SCIENCE BUILDER — shared styles (light + dark)
   Palette: validated reference dataviz palette
   ============================================================ */
* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --ink: #0b0b0b;
  --ink2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --seq: #2a78d6;            /* single-series magnitude hue */
  --seq-soft: #cde2fb;
  --good: #0ca30c;
  --warn: #fab219;
  --crit: #d03b3b;
  /* categorical slots (identity chips only, always labeled) */
  --c1: #2a78d6; --c2: #eb6834; --c3: #1baf7a; --c4: #eda100;
  --c5: #e87ba4; --c6: #008300; --c7: #4a3aa7; --c8: #e34948; --c0: #898781;
  /* sequential heat ramp: low → high on light surface */
  --h1: #cde2fb; --h2: #9ec5f4; --h3: #6da7ec; --h4: #3987e5;
  --h5: #256abf; --h6: #1c5cab; --h7: #104281;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --ink: #ffffff;
    --ink2: #c3c2b7;
    --muted: #898781;
    --grid: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --seq: #3987e5;
    --seq-soft: #1c3a5e;
    --c1: #3987e5; --c2: #d95926; --c3: #199e70; --c4: #c98500;
    --c5: #d55181; --c6: #008300; --c7: #9085e9; --c8: #e66767; --c0: #898781;
    /* on dark: low recedes to dark, high goes light */
    --h1: #0d366b; --h2: #104281; --h3: #184f95; --h4: #256abf;
    --h5: #3987e5; --h6: #6da7ec; --h7: #9ec5f4;
  }
}

html { font: 14px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
body { background: var(--page); color: var(--ink); min-height: 100vh; }
a { color: inherit; text-decoration: none; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 4px;
  padding: 0 20px; height: 52px;
}
.nav .brand { font-weight: 700; font-size: 15px; margin-right: 18px; letter-spacing: -0.01em; }
.nav .brand b { color: var(--seq); }
.nav a.link {
  padding: 6px 11px; border-radius: 7px; color: var(--ink2); font-size: 13.5px;
}
.nav a.link:hover { background: var(--page); color: var(--ink); }
.nav a.link.active { background: var(--seq); color: #fff; }
.nav .spacer { flex: 1; }
.nav .mod { font-size: 11.5px; color: var(--muted); }

/* ---------- layout ---------- */
.wrap { max-width: 1180px; margin: 0 auto; padding: 26px 20px 60px; }
.pagehead { margin-bottom: 20px; }
.pagehead h1 { font-size: 22px; letter-spacing: -0.02em; }
.pagehead .sub { color: var(--ink2); margin-top: 4px; max-width: 760px; }
.pagehead .modtag {
  display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--seq); margin-bottom: 6px;
}
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 900px) { .grid2, .grid3 { grid-template-columns: 1fr; } }

.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 18px;
}
.card h2 { font-size: 15px; margin-bottom: 4px; letter-spacing: -0.01em; }
.card .hint { color: var(--muted); font-size: 12.5px; margin-bottom: 12px; }
.card.link:hover { border-color: var(--seq); }

/* ---------- KPI tiles ---------- */
.kpis { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin-bottom: 18px; }
@media (max-width: 1000px) { .kpis { grid-template-columns: repeat(3, 1fr); } }
.kpi { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; }
.kpi .v { font-size: 24px; font-weight: 700; letter-spacing: -0.02em; }
.kpi .l { font-size: 12px; color: var(--ink2); margin-top: 2px; }
.kpi .s { font-size: 11px; color: var(--muted); }

/* ---------- chips & tags ---------- */
.chip { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--ink2); }
.chip .dot { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.tag {
  display: inline-block; font-size: 11px; color: var(--ink2);
  background: var(--page); border: 1px solid var(--grid);
  border-radius: 999px; padding: 1px 8px; margin: 2px 2px 0 0;
}
.tag.hit { border-color: var(--seq); color: var(--seq); font-weight: 600; }
.gaintype {
  display: inline-block; font-size: 11px; font-weight: 600;
  border-radius: 6px; padding: 2px 7px;
  background: var(--seq-soft); color: var(--seq);
}
.verdict-yes { color: var(--good); font-weight: 700; font-size: 12px; }
.verdict-no { color: var(--muted); font-size: 12px; }

/* ---------- bars & meters (thin marks, rounded data end) ---------- */
.barrow { display: grid; grid-template-columns: minmax(160px, 240px) 1fr 74px; gap: 10px; align-items: center; padding: 5px 0; }
.barrow .lbl { font-size: 12.5px; color: var(--ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.barrow .lbl small { color: var(--muted); display: block; font-size: 11px; }
.barrow .val { font-size: 12.5px; color: var(--ink2); text-align: right; font-variant-numeric: tabular-nums; }
.bar { display: block; height: 14px; background: transparent; border-left: 2px solid var(--axis); position: relative; }
.bar i {
  display: block; height: 100%; background: var(--seq);
  border-radius: 0 4px 4px 0; min-width: 2px;
}
.meter { display: inline-block; width: 64px; height: 6px; background: var(--grid); border-radius: 3px; vertical-align: middle; }
.meter i { display: block; height: 100%; background: var(--seq); border-radius: 3px; }

/* ---------- tables ---------- */
.tblwrap { overflow-x: auto; }
table.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th {
  text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--muted); font-weight: 600; padding: 8px 10px; border-bottom: 1px solid var(--axis);
  white-space: nowrap;
}
.tbl td { padding: 9px 10px; border-bottom: 1px solid var(--grid); vertical-align: middle; }
.tbl td.num, .tbl th.num { text-align: right; font-variant-numeric: tabular-nums; }
.tbl tr.rowlink { cursor: pointer; }
.tbl tr.rowlink:hover td { background: var(--page); }
.tbl .cellbar { display: inline-block; vertical-align: middle; width: 90px; height: 10px; border-left: 2px solid var(--axis); margin-right: 8px; }
.tbl .cellbar i { display: block; height: 100%; background: var(--seq); border-radius: 0 3px 3px 0; min-width: 2px; }

/* ---------- filters ---------- */
.filters { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.filters select, .filters input[type="search"], .filters input[type="text"] {
  background: var(--surface); color: var(--ink); border: 1px solid var(--axis);
  border-radius: 8px; padding: 7px 10px; font: inherit; font-size: 13px;
}
.filters label { font-size: 12px; color: var(--muted); }
.count-note { font-size: 12px; color: var(--muted); margin-left: auto; }

/* ---------- heatmap ---------- */
.heat { display: grid; gap: 2px; font-size: 11px; }
.heat .hrowlbl { padding-right: 10px; text-align: right; color: var(--ink2); font-size: 11.5px; line-height: 22px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.heat .hcollbl { writing-mode: initial; text-align: center; color: var(--muted); font-size: 10.5px; padding-bottom: 4px; align-self: end; }
.heat .cell { height: 22px; border-radius: 3px; background: var(--page); cursor: pointer; }
.heat .cell:hover { outline: 2px solid var(--ink); outline-offset: -1px; }
.heat .cell.z { background: var(--page); border: 1px dashed var(--grid); }
.legend { display: flex; align-items: center; gap: 6px; margin-top: 12px; font-size: 11px; color: var(--muted); }
.legend .lstep { width: 26px; height: 10px; border-radius: 2px; }

/* ---------- tooltip ---------- */
#sb-tip {
  position: fixed; z-index: 99; pointer-events: none; display: none;
  background: var(--ink); color: var(--page);
  border-radius: 8px; padding: 8px 11px; font-size: 12px; max-width: 320px;
  box-shadow: 0 4px 18px rgba(0,0,0,0.25); line-height: 1.45;
}
#sb-tip b { display: block; }

/* ---------- calculator ---------- */
.calcgrid { display: grid; grid-template-columns: 340px 1fr; gap: 16px; align-items: start; }
@media (max-width: 900px) { .calcgrid { grid-template-columns: 1fr; } }
.ctrl { margin-bottom: 14px; }
.ctrl label { display: block; font-size: 12px; color: var(--ink2); margin-bottom: 4px; }
.ctrl select { width: 100%; background: var(--surface); color: var(--ink); border: 1px solid var(--axis); border-radius: 8px; padding: 8px 10px; font: inherit; }
.ctrl input[type="range"] { width: 100%; accent-color: var(--seq); }
.ctrl .rv { font-size: 12px; color: var(--ink); font-variant-numeric: tabular-nums; float: right; }
.formula {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px;
  background: var(--page); border: 1px solid var(--grid); border-radius: 8px;
  padding: 12px 14px; margin: 10px 0; overflow-x: auto; white-space: pre; color: var(--ink2);
}
.termrow { display: flex; justify-content: space-between; gap: 12px; padding: 7px 0; border-bottom: 1px solid var(--grid); font-size: 13px; }
.termrow:last-child { border-bottom: 0; }
.termrow .t { color: var(--ink2); }
.termrow .n { font-variant-numeric: tabular-nums; font-weight: 600; }
.bigout { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 14px; }
.bigout .bo { flex: 1; min-width: 150px; background: var(--page); border: 1px solid var(--grid); border-radius: 10px; padding: 12px 14px; }
.bigout .bo .v { font-size: 22px; font-weight: 700; letter-spacing: -0.02em; }
.bigout .bo .l { font-size: 11.5px; color: var(--muted); margin-top: 2px; }
.yearbars { display: flex; align-items: flex-end; gap: 8px; height: 90px; margin-top: 14px; border-bottom: 2px solid var(--axis); padding: 0 4px; }
.yearbars .yb { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; height: 100%; }
.yearbars .yb i { width: 60%; max-width: 44px; background: var(--seq); border-radius: 4px 4px 0 0; min-height: 2px; }
.yearbars .yb small { color: var(--muted); font-size: 10.5px; margin-top: 4px; }
.yearlbls { display: flex; gap: 8px; padding: 4px 4px 0; }
.yearlbls span { flex: 1; text-align: center; font-size: 10.5px; color: var(--muted); }

/* ---------- field map ---------- */
.domain { margin-bottom: 16px; }
.domain .dhead { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.domain .dhead h2 { font-size: 16px; }
.domain .dhead .stats { font-size: 12px; color: var(--muted); }
.subgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 8px; }
.sub { background: var(--page); border: 1px solid var(--grid); border-radius: 9px; padding: 10px 12px; }
.sub b { font-size: 12.5px; display: block; }
.sub span { font-size: 11.5px; color: var(--ink2); }

/* ---------- detail pages ---------- */
.backlink { font-size: 12.5px; color: var(--seq); display: inline-block; margin-bottom: 10px; }
.statrow { display: flex; gap: 22px; flex-wrap: wrap; margin: 12px 0 4px; }
.statrow .st .v { font-weight: 700; font-size: 16px; }
.statrow .st .l { font-size: 11px; color: var(--muted); }
.opprow {
  display: grid; grid-template-columns: 1fr 90px 110px 90px 90px; gap: 10px;
  align-items: center; padding: 10px 4px; border-bottom: 1px solid var(--grid); font-size: 13px;
}
.opprow:hover { background: var(--page); }
.opprow .nm { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.opprow .nm small { display: block; color: var(--muted); font-size: 11px; }
.opprow .num { text-align: right; font-variant-numeric: tabular-nums; }
.opphead { font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); font-weight: 600; border-bottom: 1px solid var(--axis); }
.opphead:hover { background: transparent; }

.foot { margin-top: 30px; font-size: 11.5px; color: var(--muted); border-top: 1px solid var(--grid); padding-top: 12px; }