:root {
  color-scheme: light;
  --bg: #f5f5f2;
  --surface: #fcfcfb;
  --surface-2: #f0efea;
  --border: #e2e1da;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --ink-3: #75746f;
  --grid: #e8e7e1;
  --accent: #2a78d6;
  --accent-ink: #ffffff;
  --accent-soft: #e3eefb;
  --s-snaive: #8d8c86;
  --s-hw_add: #2a78d6;
  --s-hw_mul: #eb6834;
  --s-stl: #1baf7a;
  --actual: #0b0b0b;
  --holdout: rgba(42, 120, 214, 0.07);
  --warn: #9a5b00;
  --shadow: 0 1px 2px rgba(0, 0, 0, .05), 0 2px 8px rgba(0, 0, 0, .04);
  --radius: 12px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #121211;
    --surface: #1a1a19;
    --surface-2: #232321;
    --border: #33332f;
    --ink: #ffffff;
    --ink-2: #c3c2b7;
    --ink-3: #9a998f;
    --grid: #2b2b28;
    --accent: #3987e5;
    --accent-soft: #1d2b3d;
    --s-snaive: #9a998f;
    --s-hw_add: #3987e5;
    --s-hw_mul: #d95926;
    --s-stl: #199e70;
    --actual: #ffffff;
    --holdout: rgba(57, 135, 229, 0.10);
    --warn: #e0a440;
    --shadow: none;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #121211;
  --surface: #1a1a19;
  --surface-2: #232321;
  --border: #33332f;
  --ink: #ffffff;
  --ink-2: #c3c2b7;
  --ink-3: #9a998f;
  --grid: #2b2b28;
  --accent: #3987e5;
  --accent-soft: #1d2b3d;
  --s-snaive: #9a998f;
  --s-hw_add: #3987e5;
  --s-hw_mul: #d95926;
  --s-stl: #199e70;
  --actual: #ffffff;
  --holdout: rgba(57, 135, 229, 0.10);
  --warn: #e0a440;
  --shadow: none;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.55 var(--font); }
a { color: var(--accent); }
button, input, select, textarea { font: inherit; color: inherit; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--surface); padding: 6px 10px; border-radius: 6px; z-index: 20; }
.skip:focus { left: 8px; }
.muted { color: var(--ink-2); }
.small { font-size: 13px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.top { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px max(16px, calc((100vw - 1120px) / 2)); background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.brand { display: flex; align-items: center; gap: 9px; color: var(--ink); text-decoration: none; font-weight: 650; font-size: 16px; }
.brand img { border-radius: 7px; }
.top-actions { display: flex; align-items: center; gap: 8px; }
.icon-btn { display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 9px; border: 1px solid var(--border); background: var(--surface); cursor: pointer; color: var(--ink-2); }
.back { font-size: 14px; text-decoration: none; padding: 7px 12px; border-radius: 9px; border: 1px solid var(--border); background: var(--surface); color: var(--ink-2); }

main { max-width: 1120px; margin: 0 auto; padding: 0 16px 40px; }
.hero { padding: 28px 0 14px; }
.hero h1 { font-size: clamp(24px, 4vw, 34px); line-height: 1.15; margin: 0 0 8px; letter-spacing: -0.01em; }
.hero p { margin: 0; color: var(--ink-2); max-width: 720px; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; margin: 14px 0; box-shadow: var(--shadow); }
.card h2 { margin: 0 0 14px; font-size: 18px; display: flex; align-items: center; gap: 10px; }
.card h3 { margin: 0; font-size: 16px; }
.card-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 14px; margin-bottom: 12px; }
.step { display: inline-grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font-size: 13px; font-weight: 700; }

.drop { display: flex; flex-direction: column; align-items: center; gap: 4px; text-align: center; padding: 26px 16px; border: 2px dashed var(--border); border-radius: 12px; background: var(--surface-2); cursor: pointer; color: var(--ink-2); transition: border-color .15s, background .15s; }
.drop strong { color: var(--ink); }
.drop:hover, .drop.over { border-color: var(--accent); background: var(--accent-soft); }
.linkish { color: var(--accent); text-decoration: underline; }
.row-or { margin: 10px 0 0; }
.paste { margin-top: 10px; display: grid; gap: 8px; }
.paste textarea { width: 100%; font: 13px/1.45 var(--mono); padding: 10px; border-radius: 9px; border: 1px solid var(--border); background: var(--surface-2); resize: vertical; }
.paste .btn { justify-self: start; }
.lbl { font-size: 13px; color: var(--ink-2); margin-bottom: 6px; }
.samples { margin-top: 16px; }
.sample-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 8px; }
.sample { text-align: left; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface); cursor: pointer; display: grid; gap: 2px; }
.sample:hover { border-color: var(--accent); }
.sample[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); }
.sample b { font-size: 14px; }
.sample span { font-size: 12px; color: var(--ink-2); line-height: 1.35; }
.sample i { font-style: normal; font-size: 11px; color: var(--ink-3); text-transform: uppercase; letter-spacing: .04em; }

.columns { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--border); }
.filemeta { font-size: 14px; color: var(--ink-2); margin-bottom: 10px; }
.filemeta b { color: var(--ink); }
.grid-fields { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 12px 14px; }
.field { display: grid; gap: 5px; font-size: 13px; color: var(--ink-2); }
.field select, .field input[type="number"] { width: 100%; padding: 8px 10px; border-radius: 9px; border: 1px solid var(--border); background: var(--surface); color: var(--ink); min-height: 38px; }
.field .inline { display: flex; align-items: center; gap: 8px; }
.field .inline input { width: 96px; }
.field .inline em { font-style: normal; color: var(--ink-2); }
.field.check { display: flex; align-items: center; gap: 8px; align-self: end; min-height: 38px; }
.more { margin-top: 14px; }
.more summary { cursor: pointer; color: var(--ink-2); font-size: 14px; margin-bottom: 12px; }
.run-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 16px; }
.notes { margin: 12px 0 0; padding: 10px 12px 10px 28px; background: var(--surface-2); border-radius: 9px; font-size: 13px; color: var(--ink-2); }
.notes li.warn { color: var(--warn); }

.btn { display: inline-flex; align-items: center; gap: 6px; padding: 9px 16px; border-radius: 9px; border: 1px solid var(--border); background: var(--surface); cursor: pointer; font-weight: 550; min-height: 38px; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { filter: brightness(1.06); }
.btn.primary:disabled { opacity: .6; cursor: progress; }
.btn.ghost { background: transparent; }
.btn.small { padding: 6px 11px; min-height: 32px; font-size: 13px; }
.btns { display: flex; flex-wrap: wrap; gap: 6px; }

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; margin-top: 14px; }
.tile { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
.tile .k { font-size: 12px; color: var(--ink-2); text-transform: uppercase; letter-spacing: .04em; }
.tile .v { font-size: 22px; font-weight: 680; margin-top: 2px; font-variant-numeric: tabular-nums; }
.tile .s { font-size: 13px; color: var(--ink-2); }

.chart-card { padding: 14px 14px 10px; }
.chart-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; margin-bottom: 8px; }
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 9px; overflow: hidden; background: var(--surface-2); }
.seg button { border: 0; background: transparent; padding: 6px 13px; cursor: pointer; font-size: 13px; color: var(--ink-2); min-height: 32px; }
.seg button[aria-selected="true"], .seg button[aria-pressed="true"] { background: var(--surface); color: var(--ink); font-weight: 600; box-shadow: inset 0 0 0 1px var(--border); }
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 13px; color: var(--ink-2); margin: 4px 2px 6px; }
.legend button { display: inline-flex; align-items: center; gap: 6px; border: 0; background: none; padding: 3px 2px; cursor: pointer; color: var(--ink-2); }
.legend button[aria-pressed="false"] { opacity: .45; text-decoration: line-through; }
.legend .sw { width: 14px; height: 3px; border-radius: 2px; display: inline-block; }
.legend .sw.band { height: 10px; opacity: .35; }
.legend .sw.dot { width: 8px; height: 8px; border-radius: 50%; }
.chart { position: relative; width: 100%; min-height: 260px; touch-action: pan-y; }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart text { fill: var(--ink-2); font-size: 11px; font-family: var(--font); }
.chart .gridline { stroke: var(--grid); stroke-width: 1; }
.chart .axis { stroke: var(--border); }
.caption { margin: 6px 4px 0; }

.tip { position: fixed; z-index: 30; pointer-events: none; background: var(--surface); color: var(--ink); border: 1px solid var(--border); border-radius: 9px; padding: 8px 10px; font-size: 12px; box-shadow: 0 6px 20px rgba(0, 0, 0, .15); min-width: 150px; font-variant-numeric: tabular-nums; }
.tip .d { font-weight: 650; margin-bottom: 4px; }
.tip .r { display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.tip .r span:first-child { display: inline-flex; align-items: center; gap: 6px; color: var(--ink-2); }
.tip .sw { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }

.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table-wrap.tall { max-height: 420px; overflow-y: auto; }
table { border-collapse: collapse; width: 100%; font-size: 13px; font-variant-numeric: tabular-nums; }
th, td { padding: 8px 10px; text-align: right; border-bottom: 1px solid var(--border); white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
th { font-weight: 600; color: var(--ink-2); background: var(--surface); position: sticky; top: 0; }
.lb tbody tr { cursor: pointer; }
.lb tbody tr:hover { background: var(--surface-2); }
.lb tbody tr[aria-selected="true"] { background: var(--accent-soft); }
.lb .name { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; }
.lb .name .sw { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.lb .params { color: var(--ink-3); font-size: 12px; text-align: left; white-space: normal; min-width: 200px; }
.badge { display: inline-block; font-size: 11px; padding: 1px 7px; border-radius: 999px; background: var(--accent); color: var(--accent-ink); font-weight: 600; margin-left: 4px; }
.cov-bad { color: var(--warn); }
.ft td:first-child { font-family: var(--mono); font-size: 12px; }

.decomp { display: grid; gap: 4px; }
.decomp .panel-title { font-size: 12px; color: var(--ink-2); margin: 6px 0 0 4px; }

.faq dl { margin: 0; }
.faq dt { font-weight: 650; margin-top: 12px; }
.faq dd { margin: 4px 0 0; color: var(--ink-2); }

.foot { max-width: 1120px; margin: 0 auto; padding: 18px 16px 36px; display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 13px; color: var(--ink-2); border-top: 1px solid var(--border); }

@media (max-width: 560px) {
  .card { padding: 14px; }
  .tile .v { font-size: 19px; }
  .card-head .btns { width: 100%; }
  .lb .params { display: none; }
  .sample-list { grid-template-columns: 1fr 1fr; }
  .sample span { display: none; }
  .sample { padding: 8px 10px; }
  .drop { padding: 18px 12px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }