/* Shared styles for both pages. Light and dark themes from one set of tokens. */
:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-2: #eef1f5;
  --fg: #15181e;
  --muted: #5a6271;
  --border: #dde2e9;
  --accent: #2b59c3;
  --accent-soft: #e6edfb;
  --adopt: #136b40;
  --adopt-bg: #e1f3e8;
  --mixed: #8a5800;
  --mixed-bg: #fbefd6;
  --attn: #a1322d;
  --attn-bg: #fbe5e3;
  --early: #555d6a;
  --early-bg: #eceef2;
  --flip: #f7e7a6;
  --flip-fg: #5c4700;
  --bar: #c9d3e6;
  --bar-act: #2b59c3;
  --held: #c98a2b;
  --grid: #e6e9ee;
  --badge-bg: #fff2cc;
  --badge-fg: #6b4e00;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #101318;
    --surface: #171b22;
    --surface-2: #1f242d;
    --fg: #e7e9ee;
    --muted: #a0a8b6;
    --border: #2c323c;
    --accent: #8fb0ff;
    --accent-soft: #1f2a45;
    --adopt: #7fd8a5;
    --adopt-bg: #16321f;
    --mixed: #f0c46a;
    --mixed-bg: #382c12;
    --attn: #f4a19b;
    --attn-bg: #3d1d1b;
    --early: #b6bcc7;
    --early-bg: #262a32;
    --flip: #4a3f12;
    --flip-fg: #f6e3a1;
    --bar: #3a4458;
    --bar-act: #8fb0ff;
    --held: #e0a64b;
    --grid: #262c36;
    --badge-bg: #3d3313;
    --badge-fg: #f6e3a1;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #101318;
  --surface: #171b22;
  --surface-2: #1f242d;
  --fg: #e7e9ee;
  --muted: #a0a8b6;
  --border: #2c323c;
  --accent: #8fb0ff;
  --accent-soft: #1f2a45;
  --adopt: #7fd8a5;
  --adopt-bg: #16321f;
  --mixed: #f0c46a;
  --mixed-bg: #382c12;
  --attn: #f4a19b;
  --attn-bg: #3d1d1b;
  --early: #b6bcc7;
  --early-bg: #262a32;
  --flip: #4a3f12;
  --flip-fg: #f6e3a1;
  --bar: #3a4458;
  --bar-act: #8fb0ff;
  --held: #e0a64b;
  --grid: #262c36;
  --badge-bg: #3d3313;
  --badge-fg: #f6e3a1;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
.wrap { max-width: 1100px; margin: 0 auto; padding-inline: 16px; }
a { color: var(--accent); }
h1, h2, h3 { line-height: 1.25; margin: 0; }
h1 { font-size: 1.9rem; letter-spacing: -0.01em; }
h2 { font-size: 1.25rem; margin-bottom: 6px; }
h3 { font-size: 1.05rem; }
p { margin: 0 0 10px; }
.muted { color: var(--muted); }
.num { text-align: right; font-variant-numeric: tabular-nums; }

/* Header */
.top { background: var(--surface); border-bottom: 1px solid var(--border); padding-block: 22px 18px; }
.top-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin-bottom: 6px; }
.badge {
  display: inline-block; background: var(--badge-bg); color: var(--badge-fg);
  border-radius: 999px; padding: 2px 10px; font-size: 0.78rem; font-weight: 600; letter-spacing: 0.02em;
}
.lede { font-size: 1.05rem; margin: 6px 0 4px; }
.context { color: var(--muted); font-size: 0.9rem; margin-bottom: 12px; }
.result {
  background: var(--accent-soft); border-left: 4px solid var(--accent); border-radius: 8px;
  padding: 12px 14px; font-size: 1.05rem; font-weight: 500; margin: 0 0 12px;
}
.pagenav { display: flex; flex-wrap: wrap; gap: 8px; }
.pagenav a {
  text-decoration: none; padding: 5px 12px; border-radius: 999px; border: 1px solid var(--border);
  color: var(--fg); font-size: 0.9rem; background: var(--surface);
}
.pagenav a[aria-current="page"] { background: var(--fg); color: var(--bg); border-color: var(--fg); }

/* Sections */
main { padding-block: 8px 24px; }
section { margin-top: 28px; }
.section-intro { color: var(--muted); max-width: 72ch; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; }

/* Controls */
.controls { display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: flex-end; margin: 10px 0 12px; }
.seg { border: 0; padding: 0; margin: 0; min-width: 0; }
.seg legend { font-size: 0.82rem; font-weight: 600; color: var(--muted); margin-bottom: 4px; padding: 0; }
.seg-opts { display: inline-flex; flex-wrap: wrap; border: 1px solid var(--border); border-radius: 9px; overflow: hidden; background: var(--surface); }
.seg label { position: relative; cursor: pointer; }
.seg input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.seg-opts span { display: block; padding: 6px 12px; font-size: 0.9rem; border-right: 1px solid var(--border); }
.seg label:last-child span { border-right: 0; }
.seg input:checked + span { background: var(--accent); color: var(--surface); font-weight: 600; }
.seg input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: -3px; }
.seg-hint { display: inline-block; font-size: 0.82rem; color: var(--muted); margin-left: 8px; vertical-align: middle; }
.status-line { font-size: 0.9rem; margin: 4px 0 10px; }
.status-line .ok { color: var(--adopt); font-weight: 600; }
.status-line .bad { color: var(--attn); font-weight: 600; }
.flip-note { font-size: 0.9rem; margin: 0 0 10px; }
.flip-note mark { background: var(--flip); color: var(--flip-fg); padding: 0 4px; border-radius: 4px; }

/* Table */
.grid { display: grid; grid-template-columns: minmax(0, 1fr) 290px; gap: 16px; align-items: start; }
.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; min-width: 0; }
table { border-collapse: collapse; width: 100%; font-size: 0.9rem; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { background: var(--surface-2); font-weight: 600; font-size: 0.8rem; color: var(--muted); white-space: nowrap; }
th.num, td.num { text-align: right; }
th button {
  all: unset; cursor: pointer; display: inline-flex; gap: 4px; align-items: center;
}
th button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 3px; }
th[aria-sort="ascending"] button::after { content: "\25B2"; font-size: 0.6rem; }
th[aria-sort="descending"] button::after { content: "\25BC"; font-size: 0.6rem; }
tbody tr:last-child td { border-bottom: 0; }
tfoot th, tfoot td { background: var(--surface-2); color: var(--fg); font-weight: 600; font-size: 0.9rem; border-top: 1px solid var(--border); border-bottom: 0; }
#source-table tbody tr { cursor: pointer; }
#source-table tbody tr:hover td { background: var(--surface-2); }
#source-table tbody tr.selected td { background: var(--accent-soft); }
#source-table tbody tr:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
td .sub { display: block; font-size: 0.75rem; color: var(--held); white-space: nowrap; }
td.src { min-width: 130px; }
#source-table th { white-space: normal; vertical-align: bottom; line-height: 1.3; }
#source-table th.num button { justify-content: flex-end; text-align: right; }
#source-table th[data-key="perThousand"] { min-width: 92px; }
#scatter svg { max-width: 640px; margin: 0 auto; }

.tag { display: inline-block; border-radius: 999px; padding: 1px 9px; font-size: 0.78rem; font-weight: 600; white-space: nowrap; }
.v-adoption { background: var(--adopt-bg); color: var(--adopt); }
.v-mixed { background: var(--mixed-bg); color: var(--mixed); }
.v-attention { background: var(--attn-bg); color: var(--attn); }
.v-early, .v-nosource { background: var(--early-bg); color: var(--early); }
.was { display: block; margin-top: 3px; font-size: 0.74rem; background: var(--flip); color: var(--flip-fg); border-radius: 4px; padding: 0 5px; width: max-content; }

/* Detail panel */
.detail h3 { margin-bottom: 6px; }
.detail .kv { display: grid; grid-template-columns: auto auto; gap: 2px 12px; margin: 10px 0; font-size: 0.88rem; }
.detail .kv dt { color: var(--muted); }
.detail .kv dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }
.detail .why { font-size: 0.88rem; background: var(--surface-2); border-radius: 8px; padding: 8px 10px; }
.mini-title { font-size: 0.8rem; font-weight: 600; color: var(--muted); margin: 12px 0 4px; }
.paths { list-style: none; padding: 0; margin: 0; font-size: 0.86rem; display: grid; gap: 6px; }
.paths li { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 2px 10px; border-bottom: 1px dashed var(--border); padding-bottom: 4px; }
.paths li span:last-child { color: var(--muted); font-variant-numeric: tabular-nums; }

/* Charts */
.chart-card { min-width: 0; }
svg.chart { display: block; width: 100%; height: auto; max-width: 100%; }
svg text { fill: var(--muted); font-family: inherit; }
.axis line, .axis path { stroke: var(--border); }
.gridline { stroke: var(--grid); }
.diag { stroke: var(--fg); stroke-dasharray: 5 4; stroke-width: 1.2; opacity: 0.6; }
.diag-label { fill: var(--fg); font-weight: 600; }
.pt { stroke: var(--surface); stroke-width: 1.5; cursor: pointer; }
.pt.v-adoption { fill: var(--adopt); }
.pt.v-mixed { fill: var(--mixed); }
.pt.v-attention { fill: var(--attn); }
.pt.v-early { fill: var(--surface); stroke: var(--early); stroke-width: 2; }
.pt.sel { stroke: var(--fg); stroke-width: 2.5; }
.pt-label { font-size: 12.5px; fill: var(--fg); cursor: pointer; }
.pt-label.sel { font-weight: 700; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 0.82rem; color: var(--muted); margin-top: 8px; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 5px; vertical-align: -1px; }
.legend .l-adoption { background: var(--adopt); }
.legend .l-mixed { background: var(--mixed); }
.legend .l-attention { background: var(--attn); }
.legend .l-early { border: 2px solid var(--early); }
.legend .l-act { background: var(--bar-act); border-radius: 2px; }
.legend .l-rest { background: var(--bar); border-radius: 2px; }
.legend .l-held { background: var(--held); border-radius: 2px; }
.bar-rest { fill: var(--bar); }
.bar-act { fill: var(--bar-act); }
.bar-held { fill: var(--held); }
.bar-group { cursor: pointer; }
.bar-group:focus { outline: none; }
.bar-group:focus-visible .bar-outline, .bar-group.sel .bar-outline { stroke: var(--fg); stroke-width: 2; }
.bar-outline { fill: none; stroke: transparent; }
.bar-total { font-size: 12px; fill: var(--fg); }
.bar-group.sel .bar-total, .bar-group.sel .bar-week { font-weight: 700; fill: var(--fg); }
.split { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 16px; align-items: start; }
.spike-sentence { font-weight: 500; margin: 0 0 8px; }

/* Lists and panels */
.exceptions { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.exceptions li { background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--held); border-radius: 10px; padding: 10px 14px; }
.exceptions li strong { display: block; margin-bottom: 2px; }
.exceptions ul { margin: 4px 0 0; padding-left: 18px; }
.os-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.stat { font-size: 1.6rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.rules { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.rules li { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 10px 14px; display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 2px 10px; }
.rules .rid { grid-row: span 2; font-weight: 700; color: var(--accent); font-size: 0.95rem; }
.rules .live { font-size: 0.85rem; color: var(--muted); }
.assumptions ul, .questions ol { margin: 0; padding-left: 20px; }
.assumptions li, .questions li { margin-bottom: 6px; }
.questions { border-left: 4px solid var(--accent); }
.next-link { display: inline-block; margin-top: 6px; font-weight: 600; }

/* Next Tests page */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 12px; }
.test-card h3 { margin-bottom: 8px; }
.test-card .step { font-size: 0.75rem; font-weight: 700; color: var(--accent); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 2px; }
.test-card dl { margin: 8px 0 0; display: grid; gap: 6px; font-size: 0.88rem; }
.test-card dt { font-weight: 600; color: var(--muted); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; }
.test-card dd { margin: 0; }
.bar-strip { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 0.9rem; margin: 8px 0 12px; }
.bar-strip b { font-variant-numeric: tabular-nums; }
.status { font-size: 0.82rem; }
.status.early { color: var(--early); }
.status.win { color: var(--adopt); }
.status.stop { color: var(--attn); }
.status.extend { color: var(--mixed); }

/* Footer */
.foot { border-top: 1px solid var(--border); margin-top: 32px; padding-block: 16px 28px; color: var(--muted); font-size: 0.85rem; }

@media (max-width: 1060px) {
  .grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 860px) {
  .split { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 480px) {
  h1 { font-size: 1.55rem; }
  .result { font-size: 1rem; }
  th, td { padding: 7px 7px; }
  table { font-size: 0.84rem; }
  .card { padding: 12px; }
}