/* Palimpsest site — shared styles. Vanilla, no CDN, light+dark. */

:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --baseline: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --accent: #2a78d6;
  --good: #0ca30c;
  --bad: #d03b3b;
  --series-1: #2a78d6;
  --series-2: #008300;
  --series-3: #e87ba4;
  --series-4: #eda100;
  --series-5: #1baf7a;
  --series-6: #eb6834;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --ink: #ffffff;
    --ink-2: #c3c2b7;
    --muted: #898781;
    --grid: #2c2c2a;
    --baseline: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --accent: #3987e5;
    --series-1: #3987e5;
    --series-2: #008300;
    --series-3: #d55181;
    --series-4: #c98500;
    --series-5: #199e70;
    --series-6: #d95926;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 15px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre, .mono { font-family: var(--mono); font-size: 0.92em; }

header.site {
  display: flex; align-items: baseline; gap: 24px; flex-wrap: wrap;
  padding: 14px 28px; border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky; top: 0; z-index: 10;
}
header.site .brand { font-weight: 700; font-size: 17px; letter-spacing: 0.2px; }
header.site .brand span { color: var(--accent); }
header.site nav { display: flex; gap: 16px; flex-wrap: wrap; }
header.site nav a { color: var(--ink-2); font-size: 14px; }
header.site nav a.active { color: var(--ink); font-weight: 600; }
header.site .status { margin-left: auto; color: var(--muted); font-size: 13px; }

main { max-width: 1080px; margin: 0 auto; padding: 28px; }
main.wide { max-width: 1280px; }

h1 { font-size: 26px; margin: 8px 0 4px; }
h2 { font-size: 19px; margin: 28px 0 8px; }
h3 { font-size: 16px; margin: 20px 0 6px; }
p.lede { font-size: 17px; color: var(--ink-2); max-width: 70ch; }
p { max-width: 76ch; }
.dim { color: var(--muted); }
.small { font-size: 13px; }

.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 16px 18px; margin: 14px 0;
}
.cards { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.tile { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; }
.tile .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; }
.tile .value { font-size: 24px; font-weight: 650; margin-top: 2px; }
.tile .sub { color: var(--ink-2); font-size: 13px; }

table.data { border-collapse: collapse; width: 100%; font-size: 14px; }
table.data th {
  text-align: left; color: var(--muted); font-weight: 600; font-size: 12px;
  text-transform: uppercase; letter-spacing: 0.05em;
  border-bottom: 1px solid var(--baseline); padding: 6px 10px;
}
table.data td { padding: 6px 10px; border-bottom: 1px solid var(--grid); vertical-align: top; }
table.data tr.click { cursor: pointer; }
table.data tr.click:hover td { background: color-mix(in srgb, var(--accent) 7%, transparent); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

.controls { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin: 12px 0; }
.controls label { color: var(--ink-2); font-size: 13px; }
select, input[type="text"], input[type="number"], button {
  background: var(--surface); color: var(--ink);
  border: 1px solid var(--baseline); border-radius: 7px;
  padding: 6px 10px; font: inherit; font-size: 14px;
}
button { cursor: pointer; }
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
input[type="range"] { accent-color: var(--accent); }

.legend { display: flex; gap: 16px; flex-wrap: wrap; margin: 6px 0 2px; font-size: 13px; color: var(--ink-2); }
.legend .item { display: inline-flex; align-items: center; gap: 6px; }
.legend .swatch { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }

.chart-wrap { position: relative; }
.chart-tip {
  position: absolute; pointer-events: none; display: none; z-index: 5;
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.18);
  padding: 8px 10px; font-size: 13px; min-width: 130px;
}
.chart-tip .t-head { color: var(--muted); font-size: 12px; margin-bottom: 4px; }
.chart-tip .t-row { display: flex; align-items: center; gap: 6px; }
.chart-tip .t-row .v { margin-left: auto; font-variant-numeric: tabular-nums; }

.axisbars .row { display: grid; grid-template-columns: 150px 1fr 52px; gap: 8px; align-items: center; margin: 3px 0; font-size: 13px; }
.axisbars .name { color: var(--ink-2); text-align: right; }
.axisbars .track { height: 8px; background: var(--grid); border-radius: 4px; position: relative; overflow: hidden; }
.axisbars .fill { position: absolute; top: 0; bottom: 0; border-radius: 4px; }
.axisbars .val { font-variant-numeric: tabular-nums; color: var(--muted); font-size: 12px; }

.badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.ok { color: var(--good); border: 1px solid color-mix(in srgb, var(--good) 40%, transparent); }
.badge.no { color: var(--bad); border: 1px solid color-mix(in srgb, var(--bad) 40%, transparent); }

pre.code {
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 14px; overflow-x: auto; font-size: 13px; line-height: 1.5;
}

.asm { font-family: var(--mono); font-size: 13px; line-height: 1.6; }
.asm .line { display: flex; gap: 14px; padding: 0 8px; border-radius: 5px; }
.asm .line.active { background: color-mix(in srgb, var(--accent) 18%, transparent); }
.asm .pc { color: var(--muted); width: 48px; text-align: right; }
.asm .imm { color: var(--accent); }

.stackview { font-family: var(--mono); font-size: 13px; }
.stackview .slot {
  border: 1px solid var(--border); border-radius: 6px; padding: 3px 8px; margin: 3px 0;
  background: var(--surface); overflow-wrap: anywhere;
}
.stackview .slot.top { border-color: var(--accent); }

footer.site { max-width: 1080px; margin: 30px auto; padding: 0 28px 30px; color: var(--muted); font-size: 13px; }

/* -- imagery (added with the illustrated pages) -- */
.figrow { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin: 18px 0; }
.figrow figure, figure.solo { margin: 0; }
.figrow img, figure.solo img { width: 100%; border-radius: 10px; display: block; }
.figrow svg.poster { width: 100%; height: auto; border-radius: 10px; display: block; }
.figrow figcaption, figure.solo figcaption { font-size: 12px; color: var(--muted); margin-top: 6px; line-height: 1.5; }
figure.float-r { float: right; width: 200px; margin: 4px 0 12px 18px; }
figure.float-r img { width: 100%; border-radius: 10px; display: block; }
figure.float-r figcaption { font-size: 11.5px; color: var(--muted); margin-top: 5px; line-height: 1.45; }
@media (max-width: 640px) { figure.float-r { float: none; width: 100%; margin: 12px 0; } }