:root {
  --surface: #fcfcfb;
  --surface-2: #f4f3ef;
  --line: #e2e0d9;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --ink-3: #7b7a75;
  --accent: #2a78d6;
  --accent-ink: #ffffff;
  --orange: #eb6834;
  --seq-lo: #86b6ef;
  --seq-mid: #2a78d6;
  --seq-hi: #0f3566;
  --div-neg: #d64545;
  --div-mid: #e9e8e4;
  --div-pos: #2a78d6;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --surface: #1a1a19;
    --surface-2: #232321;
    --line: #353532;
    --ink: #ffffff;
    --ink-2: #c3c2b7;
    --ink-3: #8f8e86;
    --accent: #3987e5;
    --orange: #d95926;
    --seq-lo: #184f95;
    --seq-mid: #3987e5;
    --seq-hi: #cde2fb;
    --div-neg: #e06060;
    --div-mid: #3a3a38;
    --div-pos: #3987e5;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font: 15px/1.5 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}
code { font: 0.92em ui-monospace, SFMono-Regular, Menlo, monospace; background: var(--surface-2); padding: 0.05em 0.3em; border-radius: 4px; }
h1, h2, h3, p { margin: 0; }

.top { padding: 28px 24px 20px; max-width: 1400px; margin: 0 auto; }
.top h1 { font: 600 30px/1.1 ui-serif, Georgia, "Times New Roman", serif; letter-spacing: -0.01em; }
.top p { color: var(--ink-2); max-width: 70ch; margin-top: 8px; }

main { display: grid; grid-template-columns: 330px minmax(0, 1fr); gap: 24px; padding: 0 24px 32px; max-width: 1400px; margin: 0 auto; align-items: start; }

.panel { position: sticky; top: 16px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface-2); }
.panel section { padding: 16px; border-bottom: 1px solid var(--line); }
.panel section:last-child { border-bottom: 0; }
.panel h2 { font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 10px; }
.panel label, .panel legend { display: block; font-size: 13px; font-weight: 600; margin: 12px 0 4px; padding: 0; }
.panel label.radio { font-weight: 400; margin: 4px 0; display: flex; gap: 8px; align-items: baseline; }
fieldset { border: 0; padding: 0; margin: 0; }
input[type="text"], input[type="number"], textarea, select {
  width: 100%; font: inherit; color: var(--ink); background: var(--surface);
  border: 1px solid var(--line); border-radius: 6px; padding: 7px 9px;
}
textarea { resize: vertical; font: 13px/1.45 ui-monospace, SFMono-Regular, Menlo, monospace; }
input:focus-visible, textarea:focus-visible, select:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.hint { font-size: 12.5px; color: var(--ink-3); margin-top: 6px; }
.fine p { font-size: 12.5px; color: var(--ink-3); }

.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips button, .actions button {
  font: inherit; font-size: 13px; cursor: pointer; color: var(--ink);
  background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 5px 12px;
}
.chips button:hover, .actions button:hover { border-color: var(--ink-3); }
.chips button[aria-pressed="true"] { background: var(--ink); color: var(--surface); border-color: var(--ink); }
.actions { display: flex; gap: 8px; margin-top: 14px; }
.actions button { border-radius: 6px; padding: 8px 14px; font-weight: 600; }
.actions .primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); flex: 1; }
.actions .primary:disabled { opacity: 0.55; cursor: default; }
.bar { height: 4px; background: var(--line); border-radius: 2px; margin-top: 12px; overflow: hidden; }
.bar div { height: 100%; width: 0; background: var(--accent); transition: width 0.15s; }
.status { font-size: 12.5px; color: var(--ink-2); margin-top: 8px; min-height: 1.5em; overflow-wrap: anywhere; }
.status.err { color: var(--div-neg); }

.content { display: grid; gap: 16px; min-width: 0; }
.titlebar { display: flex; justify-content: space-between; gap: 16px; align-items: flex-end; flex-wrap: wrap; }
.titlebar h2 { font: 600 22px/1.2 ui-serif, Georgia, serif; }
.muted { color: var(--ink-3); font-weight: 400; }
.verdict { max-width: 46ch; border-left: 3px solid var(--accent); padding: 2px 0 2px 12px; }
.verdict strong { display: block; font-size: 17px; }
.verdict span { font-size: 13px; color: var(--ink-2); }

.card { border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; min-width: 0; }
.cardhead { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 6px; }
.card h3 { font-size: 14px; font-weight: 600; }
.controls { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; font-size: 13px; color: var(--ink-2); }
.controls select { width: auto; padding: 3px 6px; margin-left: 4px; }
.check { display: inline-flex; gap: 5px; align-items: center; }
.layer { display: grid; grid-template-columns: auto 1fr; gap: 16px; align-items: center; }
.layer label { font-weight: 600; font-size: 14px; white-space: nowrap; }
.layer output { display: inline-block; min-width: 1.6em; font-variant-numeric: tabular-nums; }
input[type="range"] { width: 100%; accent-color: var(--accent); }

.plot { width: 100%; }
.plot.tall { height: 520px; }
.plot.square { height: 400px; }
.plot.short { height: 220px; }
.two { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; }

.scores { margin: 0; display: grid; gap: 0; }
.scores div { display: grid; grid-template-columns: 1fr auto; gap: 2px 12px; padding: 9px 0; border-bottom: 1px solid var(--line); }
.scores div:last-child { border-bottom: 0; }
.scores dt { font-size: 13.5px; font-weight: 600; }
.scores dd { margin: 0; font-variant-numeric: tabular-nums; font-size: 15px; font-weight: 600; text-align: right; white-space: nowrap; }
.scores p { grid-column: 1 / -1; font-size: 12.5px; color: var(--ink-3); }

details summary { cursor: pointer; font-weight: 600; font-size: 14px; }
details ol { margin: 10px 0 0; padding-left: 24px; font-size: 13px; color: var(--ink-2); max-height: 320px; overflow: auto; }
details mark { background: none; color: var(--accent); font-weight: 600; }

footer { padding: 0 24px 32px; max-width: 1400px; margin: 0 auto; font-size: 13px; color: var(--ink-3); }
footer a { color: var(--accent); }

@media (max-width: 900px) {
  main { grid-template-columns: minmax(0, 1fr); padding: 0 16px 24px; }
  .top, footer { padding-left: 16px; padding-right: 16px; }
  .panel { position: static; }
  .two { grid-template-columns: minmax(0, 1fr); }
  .plot.tall { height: 400px; }
}