/* Blog widgets (see widgets.js). All colors come from --lab-* variables so they follow the page's light/dark mode. */
.lab-w, .lab-modal {
  --lab-bg: #f6f7f9; --lab-panel: #ffffff; --lab-fg: #1d2330; --lab-muted: #6b7482; --lab-line: #d9dde5;
  --lab-canvas: #fbfbfd; --lab-grid: #e6e9ef; --lab-data: #2f6fed; --lab-noise: #e0641c; --lab-sample: #118a5b; --lab-field: #6b7482; --lab-accent: #2f6fed;
}
.lab-w {
  margin: 1.6em 0; padding: 12px; border: 1px solid var(--lab-line); border-radius: 10px; background: var(--lab-bg); color: var(--lab-fg);
  font: 14px/1.4 system-ui, -apple-system, "Segoe UI", sans-serif; box-sizing: border-box;
}
@media (prefers-color-scheme: dark) {
  .lab-w, .lab-modal {
    --lab-bg: #1b1f27; --lab-panel: #232832; --lab-fg: #e6e9ef; --lab-muted: #98a2b3; --lab-line: #353b48;
    --lab-canvas: #12151b; --lab-grid: #242a35; --lab-data: #6ea0ff; --lab-noise: #ff9a55; --lab-sample: #3fd09a; --lab-field: #98a2b3; --lab-accent: #6ea0ff;
  }
}
.lab-w *, .lab-modal * { box-sizing: border-box; }
.lab-grid { display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-start; }
.lab-stage { flex: 1 1 300px; min-width: 260px; max-width: 460px; }
.lab-canvas { position: relative; width: 100%; aspect-ratio: 1; border-radius: 8px; overflow: hidden; border: 1px solid var(--lab-line); background: var(--lab-canvas); }
.lab-canvas canvas { width: 100%; height: 100%; display: block; touch-action: none; }
.lab-hint { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; text-align: center; padding: 20px; pointer-events: none; font-size: 13px; line-height: 1.5; }
.lab-hint:empty { display: none; }
.lab-hint { color: var(--lab-muted); }
.lab-hint.on-color span { background: rgba(15, 20, 30, 0.78); color: #fff; }
.lab-hint span { background: color-mix(in srgb, var(--lab-canvas) 82%, transparent); padding: 6px 12px; border-radius: 6px; }
.lab-legend { display: flex; flex-wrap: wrap; gap: 4px 14px; margin-top: 6px; font-size: 12px; color: var(--lab-muted); min-height: 18px; }
.lab-legend i { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 5px; vertical-align: -1px; }
.lab-legend i.arrow { width: 14px; height: 0; border-radius: 0; border-top: 2px solid var(--lab-field); vertical-align: 3px; }
.lab-panel { flex: 1 1 260px; min-width: 240px; display: flex; flex-direction: column; gap: 9px; }
.lab-title { font-weight: 600; font-size: 14px; }
.lab-note { color: var(--lab-muted); font-size: 12.5px; }
.lab-stat { color: var(--lab-muted); font-size: 12.5px; font-variant-numeric: tabular-nums; }
.lab-row { display: flex; align-items: center; gap: 8px; }
.lab-row.wrap { flex-wrap: wrap; }
.lab-row label { min-width: 44px; color: var(--lab-muted); font-size: 12.5px; }
.lab-row input[type=range] { flex: 1; min-width: 0; accent-color: var(--lab-accent); }
.lab-row select, .lab-panel > select { flex: 1; min-width: 0; }
.lab-row .val { min-width: 62px; text-align: right; font-variant-numeric: tabular-nums; font-size: 12.5px; }
.lab-chk { display: flex; align-items: center; gap: 6px; font-size: 12.5px; cursor: pointer; }
.lab-w button, .lab-modal button, .lab-w select {
  font: inherit; font-size: 13px; padding: 5px 11px; border-radius: 6px; border: 1px solid var(--lab-line); background: var(--lab-panel); color: var(--lab-fg); cursor: pointer;
}
.lab-w select { padding: 5px 6px; max-width: 100%; }
.lab-w button:hover:not(:disabled), .lab-modal button:hover { border-color: var(--lab-accent); }
.lab-w button:disabled { opacity: 0.45; cursor: default; }
.lab-w button.on { background: var(--lab-accent); border-color: var(--lab-accent); color: #fff; }
.lab-w button.primary { background: var(--lab-accent); border-color: var(--lab-accent); color: #fff; }
.lab-seg { display: inline-flex; }
.lab-seg button { border-radius: 0; margin-left: -1px; }
.lab-seg button:first-child { border-radius: 6px 0 0 6px; margin-left: 0; }
.lab-seg button:last-child { border-radius: 0 6px 6px 0; }
.lab-loss { width: 100%; height: 56px; border: 1px solid var(--lab-line); border-radius: 6px; background: var(--lab-canvas); }
.lab-sched { width: 100%; height: 130px; border: 1px solid var(--lab-line); border-radius: 6px; background: var(--lab-canvas); }
table.lab-cmp { border-collapse: collapse; font-size: 12.5px; width: 100%; margin: 0; }
table.lab-cmp th, table.lab-cmp td { border: 0; border-bottom: 1px solid var(--lab-line); padding: 3px 6px; text-align: right; background: none; }
table.lab-cmp th:first-child, table.lab-cmp td:first-child { text-align: left; color: var(--lab-muted); }
table.lab-cmp i { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 5px; }
table.lab-cmp i.o { background: var(--lab-noise); } table.lab-cmp i.r { background: var(--lab-sample); }
.lab-w[data-widget=arch] { font-size: 13px; }
.lab-w[data-widget=arch] .two { display: flex; flex-wrap: wrap; gap: 8px; }
.lab-w[data-widget=arch] .two .box { flex: 1 1 200px; }
.lab-w[data-widget=arch] .box { background: var(--lab-panel); border: 1px solid var(--lab-line); border-radius: 6px; padding: 7px 10px; }
.lab-w[data-widget=arch] .box.hid { border-left: 3px solid var(--lab-accent); }
.lab-w[data-widget=arch] .down { text-align: center; color: var(--lab-muted); font-size: 12px; line-height: 1.6; }
.lab-modal { position: fixed; inset: 0; z-index: 1000; background: rgba(0, 0, 0, 0.45); display: flex; align-items: center; justify-content: center; font: 14px/1.4 system-ui, sans-serif; }
.lab-modal[hidden] { display: none; }
.lab-modal .card { background: var(--lab-panel); color: var(--lab-fg); border-radius: 10px; padding: 18px 20px; max-width: 380px; margin: 16px; box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35); }
.lab-modal h3 { margin: 0 0 8px; font-size: 16px; font-weight: 600; color: inherit; }
.lab-modal p { margin: 0 0 14px; color: inherit; }
.lab-modal .btns { display: flex; justify-content: flex-end; gap: 8px; }
.lab-modal button.danger { background: #d64545; border-color: #d64545; color: #fff; }