/* Spread Sync — docs */

:root {
  --bg: #161616;
  --bg-alt: #1c1c1c;
  --bg-code: #0f0f0f;
  --line: #2a2a2a;
  --line-soft: #232323;
  --ink: #d4d4d4;
  --ink-mute: #999;
  --ink-dim: #6e6e6e;
  --accent: #7aa2f7;
  --accent-q: #b8c8e8;
  --warn: #d5a76e;
  --max: 720px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Segoe UI", sans-serif;
  font-size: 15.5px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "palt" 1;
}

a { color: var(--accent); text-decoration: none; border-bottom: 1px solid transparent; transition: border-color .15s; }
a:hover { border-bottom-color: var(--accent); }

code, pre {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
}

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ─── nav ─── */
.nav {
  padding: 28px 0;
  border-bottom: 1px solid var(--line-soft);
}
.nav .container { display: flex; align-items: center; justify-content: space-between; }
.nav .brand { font-weight: 600; font-size: 15px; color: var(--ink); }
.nav .brand-sub { color: var(--ink-dim); font-weight: 400; margin-left: 6px; font-size: 13px; }
.nav ul {
  list-style: none; display: flex; gap: 22px;
  margin: 0; padding: 0; font-size: 13.5px;
}
.nav ul a { color: var(--ink-mute); }
.nav ul a:hover { color: var(--ink); border-bottom-color: var(--line); }

/* ─── hero ─── */
.hero { padding: 80px 0 56px; }
.hero h1 {
  font-weight: 600;
  font-size: 28px;
  line-height: 1.45;
  margin: 0 0 20px;
  color: var(--ink);
  letter-spacing: -0.005em;
}
.hero .lede {
  font-size: 16px;
  color: var(--ink-mute);
  max-width: 580px;
  margin: 0 0 28px;
  line-height: 1.85;
}
.hero .meta {
  font-size: 13px;
  color: var(--ink-dim);
  display: flex;
  flex-wrap: wrap;
  gap: 0 22px;
}
.hero .meta span:not(:last-child)::after {
  content: " ·";
  margin-left: 22px;
  color: var(--line);
}

/* ─── sections ─── */
section { padding: 56px 0; border-top: 1px solid var(--line-soft); }
section > .container > h2 {
  font-weight: 600;
  font-size: 21px;
  margin: 0 0 8px;
  color: var(--ink);
  letter-spacing: -0.003em;
}
section > .container > h2 + p {
  color: var(--ink-mute);
  margin: 0 0 32px;
  font-size: 15px;
  max-width: 600px;
}

h3 {
  font-weight: 600;
  font-size: 15.5px;
  margin: 28px 0 6px;
  color: var(--ink);
}
h3:first-of-type { margin-top: 0; }

p { margin: 0 0 14px; }

ul, ol { padding-left: 22px; margin: 0 0 14px; }
ul li, ol li { margin-bottom: 6px; }

p code, li code, td code, dt code, h3 code {
  background: var(--bg-code);
  border: 1px solid var(--line);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 0.88em;
}

/* ─── feature list (definition list style) ─── */
.features {
  margin: 0; padding: 0;
  border-top: 1px solid var(--line-soft);
}
.features > div {
  padding: 18px 0;
  border-bottom: 1px solid var(--line-soft);
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 24px;
}
.features > div > .name {
  color: var(--ink);
  font-weight: 500;
  font-size: 14.5px;
}
.features > div > .body {
  color: var(--ink-mute);
  font-size: 14.5px;
  line-height: 1.75;
}

/* ─── code blocks ─── */
pre {
  background: var(--bg-code);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 14px 18px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink);
  margin: 12px 0 20px;
}
pre code { background: none; border: none; padding: 0; color: inherit; }
pre .k { color: #9ec0ff; }
pre .s { color: #c8b07a; }
pre .c { color: #6a6a6a; font-style: italic; }
pre .n { color: #c3a8e7; }
pre .f { color: #d6a26a; }

/* ─── steps (clean numbered list) ─── */
ol.steps { list-style: none; padding-left: 0; counter-reset: step; }
ol.steps li {
  padding-left: 48px;
  margin-bottom: 24px;
  position: relative;
}
ol.steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0; top: 0;
  width: 26px; height: 26px;
  border: 1px solid var(--line);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px;
  color: var(--ink-mute);
  font-family: ui-monospace, monospace;
}
ol.steps li h3 { margin: 0 0 4px; font-size: 15px; }
ol.steps li p { color: var(--ink-mute); margin: 0; font-size: 14.5px; }

/* ─── tables ─── */
table {
  border-collapse: collapse;
  width: 100%;
  font-size: 14px;
  margin: 0 0 12px;
}
th, td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--line-soft);
  text-align: left;
  vertical-align: top;
}
thead th {
  color: var(--ink-dim);
  font-weight: 500;
  font-size: 12.5px;
  border-bottom-color: var(--line);
}
tbody td:first-child { color: var(--ink); font-weight: 500; }
tbody td { color: var(--ink-mute); }

/* ─── badge mini demo ─── */
.badge {
  display: inline-block;
  font-size: 11.5px;
  padding: 2px 7px;
  border-radius: 3px;
  font-weight: 500;
}
.badge--auth { background: #3a1a1a; color: #f0a0a0; }
.badge--access { background: #3a2a18; color: #f0bd7a; }
.badge--stale { background: #2f2914; color: #f0d56b; }
.badge--offline { background: #1a2438; color: #a0b6e0; }

/* ─── callout ─── */
.note {
  background: var(--bg-alt);
  border-left: 2px solid var(--ink-dim);
  padding: 12px 16px;
  margin: 16px 0 20px;
  font-size: 14px;
  color: var(--ink-mute);
}
.note strong { color: var(--ink); }

/* ─── arch ascii ─── */
.arch {
  background: var(--bg-code);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 18px 22px;
  font-family: ui-monospace, monospace;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--ink-mute);
  overflow-x: auto;
}
.arch .layer { color: var(--ink); font-weight: 500; }

/* ─── footer ─── */
footer {
  border-top: 1px solid var(--line-soft);
  padding: 28px 0 48px;
  color: var(--ink-dim);
  font-size: 13px;
}
footer a { color: var(--ink-mute); }
footer a:hover { color: var(--ink); }
.footer-inner { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* ─── mobile ─── */
@media (max-width: 640px) {
  .hero { padding: 56px 0 40px; }
  .hero h1 { font-size: 22px; }
  .nav ul { gap: 14px; font-size: 12.5px; }
  section { padding: 44px 0; }
  .features > div { grid-template-columns: 1fr; gap: 4px; }
}