/* Brand tokens mirror download-web / admin-web (teal #3C9CB4, lime #AEC636
   from the logo). Light theme, flat hairline cards. */
:root {
  --ink: #14171a;
  --ink-muted: #5b6169;
  --ink-subtle: #8b8f97;
  --canvas: #ffffff;
  --canvas-soft: #f6f7f8;
  --hairline: #e4e6e9;
  --teal: #3c9cb4;
  --teal-600: #1f7a91;
  --teal-700: #186377;
  --teal-wash: #eaf5f8;
  --lime-700: #6f801e;
  --lime-wash: #f4f8e4;
  --font: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: ui-monospace, "JetBrains Mono", "SF Mono", Menlo, monospace;
  color-scheme: light;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 400 16px/1.6 var(--font);
  color: var(--ink);
  background: var(--canvas-soft);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--teal-700); }
a:hover { color: var(--teal-600); }
:focus-visible { outline: 2px solid var(--teal-600); outline-offset: 2px; }

.wrap { max-width: 720px; margin: 0 auto; padding: 0 16px; }

.site-header {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 56px;
}
.brand { display: inline-flex; align-items: center; }
.brand img { height: 28px; width: auto; display: block; }
nav { display: flex; gap: 20px; font-size: 14px; }
nav a { color: var(--ink-muted); text-decoration: none; }
nav a:hover, nav a[aria-current="page"] { color: var(--teal-700); }

main { padding: 32px 0 48px; display: flex; flex-direction: column; gap: 16px; }

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-subtle);
}

h1 { margin: 8px 0 0; font-size: 32px; line-height: 1.2; font-weight: 600; letter-spacing: -0.01em; }
h2 { margin: 0 0 8px; font-size: 20px; line-height: 1.3; font-weight: 600; }
h3 { margin: 20px 0 4px; font-size: 16px; font-weight: 600; }
p { margin: 0 0 12px; }
.lede { font-size: 18px; color: var(--ink-muted); margin: 12px 0 0; }
.muted { color: var(--ink-muted); }

.card {
  background: var(--canvas);
  border: 1px solid var(--hairline);
  border-radius: 4px;
  padding: 24px 20px;
}
.card > :last-child { margin-bottom: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 20px;
  border-radius: 4px;
  background: var(--teal-700);
  color: #fff;
  font: 600 16px var(--font);
  text-decoration: none;
}
.btn:hover { background: var(--teal-600); color: #fff; }

.features { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.features li { padding-left: 16px; border-left: 3px solid var(--teal); }
.features strong { display: block; }
.features span { color: var(--ink-muted); font-size: 15px; }

.notice {
  padding: 12px 16px;
  border-radius: 4px;
  font-size: 14px;
  background: var(--lime-wash);
  color: var(--lime-700);
}

ul.plain { margin: 0 0 12px; padding-left: 20px; }
ul.plain li + li { margin-top: 6px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 8px 0 12px; }
th, td { text-align: left; vertical-align: top; padding: 8px 10px; border-bottom: 1px solid var(--hairline); }
th { font-weight: 600; background: var(--canvas-soft); }
.table-scroll { overflow-x: auto; }

.toc { font-size: 14px; columns: 2; column-gap: 24px; margin: 0; padding-left: 20px; }
.toc li { break-inside: avoid; margin-bottom: 4px; }

footer { padding: 0 0 40px; font-size: 13px; color: var(--ink-subtle); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; }
footer a { color: var(--ink-muted); }

@media (max-width: 520px) {
  h1 { font-size: 26px; }
  .toc { columns: 1; }
}