:root {
  color-scheme: light;
  --bg: #fcfcfb;
  --surface: #ffffff;
  --surface-2: #f3f2ef;
  --line: #e2e1dc;
  --text: #0b0b0b;
  --text-2: #52514e;
  --muted: #76756f;
  --accent: #2a78d6;
  --accent-soft: #cde2fb;
  --good: #0ca30c;
  --good-text: #006300;
  --warn: #eda100;
  --warn-text: #8a5d00;
  --bad: #d03b3b;
  --bad-text: #a32020;
  --bar: #2a78d6;
  --code-bg: #f3f2ef;
  --shadow: 0 1px 2px rgba(0,0,0,.05), 0 4px 16px rgba(0,0,0,.04);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #141413;
    --surface: #1a1a19;
    --surface-2: #242422;
    --line: #353532;
    --text: #f0efec;
    --text-2: #c3c2b7;
    --muted: #9a998f;
    --accent: #5598e7;
    --accent-soft: #184f95;
    --good: #0ca30c;
    --good-text: #5ccf5c;
    --warn: #fab219;
    --warn-text: #fab219;
    --bad: #e66767;
    --bad-text: #f08a8a;
    --bar: #3987e5;
    --code-bg: #242422;
    --shadow: none;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #141413; --surface: #1a1a19; --surface-2: #242422; --line: #353532; --text: #f0efec; --text-2: #c3c2b7;
  --muted: #9a998f; --accent: #5598e7; --accent-soft: #184f95; --good: #0ca30c; --good-text: #5ccf5c; --warn: #fab219;
  --warn-text: #fab219; --bad: #e66767; --bad-text: #f08a8a; --bar: #3987e5; --code-bg: #242422; --shadow: none;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
code, pre { font-family: ui-monospace, "Cascadia Code", Consolas, monospace; font-size: .9em; }
code { background: var(--code-bg); padding: .1em .35em; border-radius: 4px; overflow-wrap: anywhere; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }

.top { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 18px; padding-bottom: 18px; flex-wrap: wrap; }
.brand { font-weight: 700; display: flex; align-items: center; gap: 10px; }
.logo { width: 22px; height: 22px; border-radius: 6px; background: var(--accent); display: inline-block; box-shadow: inset 0 -6px 0 rgba(255,255,255,.25); }
nav { display: flex; gap: 16px; flex-wrap: wrap; font-size: 15px; }
nav a { color: var(--text-2); text-decoration: none; }
nav a:hover { color: var(--accent); }

.hero h1 { font-size: clamp(30px, 5vw, 48px); line-height: 1.1; margin: 28px 0 14px; letter-spacing: -.02em; }
.lede { font-size: 18px; color: var(--text-2); max-width: 820px; margin: 0; }
.meta { color: var(--muted); font-size: 14px; margin-top: 12px; }

section { margin: 48px 0; }
h2 { font-size: 24px; margin: 0 0 6px; letter-spacing: -.01em; }
h3 { font-size: 17px; margin: 0 0 8px; }
.sub { color: var(--text-2); margin: 0 0 16px; }

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.tile { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 18px; box-shadow: var(--shadow); }
.tile h3 { font-size: 14px; color: var(--text-2); font-weight: 600; margin: 0 0 12px; font-family: ui-monospace, Consolas, monospace; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.step .big { font-size: 30px; font-weight: 700; line-height: 1.1; font-variant-numeric: tabular-nums; }
.step .lbl { font-size: 13px; color: var(--text-2); }
.stack { display: flex; height: 12px; border-radius: 6px; overflow: hidden; margin-top: 14px; gap: 2px; background: var(--surface); }
.stack span { display: block; height: 100%; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-top: 10px; font-size: 13px; color: var(--text-2); }
.legend i { width: 10px; height: 10px; border-radius: 3px; display: inline-block; margin-right: 6px; vertical-align: -1px; }
.c-pass { background: var(--good); }
.c-pin { background: var(--accent); }
.c-compat { background: var(--accent-soft); }
.c-fail { background: var(--bad); }

.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; margin-bottom: 14px; }
.seg button { border: 0; background: var(--surface); color: var(--text-2); padding: 6px 12px; font: inherit; font-size: 14px; cursor: pointer; }
.seg button[aria-selected="true"] { background: var(--accent); color: #fff; }
.hbars { display: grid; gap: 8px; }
.hrow { display: grid; grid-template-columns: minmax(150px, 230px) 1fr 48px; align-items: center; gap: 12px; font-size: 14px; }
.hrow .name { font-family: ui-monospace, Consolas, monospace; color: var(--text); overflow-wrap: anywhere; }
.hrow .track { height: 18px; position: relative; }
.hrow .fill { height: 100%; background: var(--bar); border-radius: 0 4px 4px 0; min-width: 2px; }
.hrow .val { text-align: right; font-variant-numeric: tabular-nums; color: var(--text-2); }
.hrow:hover .fill { filter: brightness(1.1); }
.note { margin-top: 16px; color: var(--text-2); font-size: 14px; }
.note dl { display: grid; grid-template-columns: minmax(150px, 230px) 1fr; gap: 6px 12px; }
.note dt { font-family: ui-monospace, Consolas, monospace; color: var(--text); }
.note dd { margin: 0; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 18px; box-shadow: var(--shadow); }
.card p { margin: 0 0 10px; color: var(--text-2); font-size: 15px; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 600; color: var(--text-2); background: var(--surface-2); position: sticky; top: 0; }
tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; width: 1%; white-space: nowrap; }
td .cr { font-family: ui-monospace, Consolas, monospace; font-weight: 600; }
td .ver { color: var(--muted); font-size: 12px; }
td .err { font-family: ui-monospace, Consolas, monospace; font-size: 12.5px; color: var(--text-2); overflow-wrap: anywhere; }
.badge { display: inline-flex; align-items: center; gap: 5px; font-size: 12.5px; white-space: nowrap; padding: 1px 8px; border-radius: 999px; border: 1px solid var(--line); }
.badge::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.b-pass { color: var(--good-text); }
.b-pin { color: var(--accent); }
.b-fail { color: var(--bad-text); }
.b-skip { color: var(--muted); }
.minibar { display: inline-block; height: 8px; background: var(--bar); border-radius: 0 3px 3px 0; vertical-align: middle; margin-right: 8px; }

.controls { display: flex; gap: 10px; flex-wrap: wrap; margin: 12px 0; align-items: center; }
.controls input, .controls select { font: inherit; font-size: 15px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); color: var(--text); }
.controls input { flex: 1 1 260px; min-width: 0; }
.dl { font-size: 14px; }

.method { color: var(--text-2); padding-left: 20px; }
.method li { margin: 6px 0; }
pre.cmd { background: var(--code-bg); border: 1px solid var(--line); border-radius: 10px; padding: 14px; overflow-x: auto; }
.foot { color: var(--muted); font-size: 13px; padding-bottom: 40px; border-top: 1px solid var(--line); padding-top: 16px; }

#tip { position: fixed; z-index: 10; pointer-events: none; background: var(--surface); color: var(--text); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font-size: 13px; box-shadow: 0 6px 24px rgba(0,0,0,.15); max-width: 360px; }

@media (max-width: 640px) {
  .steps { grid-template-columns: repeat(3, 1fr); }
  .step .big { font-size: 24px; }
  .hrow { grid-template-columns: 1fr 40px; }
  .hrow .name { grid-column: 1 / -1; }
  .note dl { grid-template-columns: 1fr; }
  th, td { padding: 6px 8px; }
}
.more { font: inherit; font-size: 14px; margin-left: 8px; padding: 4px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--surface); color: var(--accent); cursor: pointer; }