/* SnapFlow Docs — design system. Light mode is the default; dark is opt-in via [data-theme="dark"]. */

:root {
  /* Light = the SnapFlow pitch-deck palette (deck/snapflow-deck.html) */
  --bg: #e7e9e5;
  --bg-raised: #fbfcfa;
  --bg-sunken: #f1f3ef;
  --surface: #fbfcfa;
  --surface-hover: #f1f3ef;
  --border: #d6dad5;
  --border-soft: #e3e5e0;
  --text: #15181b;
  --text-secondary: #4a5058;
  --text-muted: #7c838c;
  --accent: #0e6e5e;
  --accent-strong: #0a5647;
  --accent-soft: rgba(14, 110, 94, 0.1);
  --accent-line: rgba(14, 110, 94, 0.35);
  --ok: #0e6e5e;
  --ok-soft: rgba(14, 110, 94, 0.1);
  --warn: #a8762b;
  --warn-soft: rgba(168, 118, 43, 0.12);
  --danger: #a8443a;
  --danger-soft: rgba(168, 68, 58, 0.1);
  --info: #3e6485;
  --info-soft: rgba(62, 100, 133, 0.1);
  --code-bg: #f1f3ef;
  --shadow-sm: 0 1px 2px rgba(21, 24, 27, 0.06);
  --shadow-md: 0 12px 32px -12px rgba(21, 24, 27, 0.14);
  --shadow-lg: 0 16px 40px rgba(21, 24, 27, 0.16);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --font-display: "Söhne", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code", Menlo, Consolas, monospace;
  --sidebar-w: 272px;
  --topbar-h: 60px;
  color-scheme: light;
}

:root[data-theme="dark"] {
  /* Dark = the Crew app's own "Night Brass" theme (apps/crew/src/app/globals.css) */
  --bg: #121316;
  --bg-raised: #1a1c20;
  --bg-sunken: #0c0d0f;
  --surface: #1a1c20;
  --surface-hover: #202329;
  --border: #2f3238;
  --border-soft: #26282d;
  --text: #eceded;
  --text-secondary: #a6a9ae;
  --text-muted: #6d7077;
  --accent: #d3a94f;
  --accent-strong: #e2be6c;
  --accent-soft: rgba(211, 169, 79, 0.14);
  --accent-line: rgba(211, 169, 79, 0.4);
  --ok: #5cbe8e;
  --ok-soft: rgba(92, 190, 142, 0.13);
  --warn: #e08d4d;
  --warn-soft: rgba(224, 141, 77, 0.14);
  --danger: #e5655c;
  --danger-soft: rgba(229, 101, 92, 0.13);
  --info: #8fa3c8;
  --info-soft: rgba(143, 163, 200, 0.14);
  --code-bg: #101214;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.5);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background 0.15s ease, color 0.15s ease;
}
img { max-width: 100%; display: block; }
a { color: var(--accent-strong); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.01em; line-height: 1.2; color: var(--text); }
code, kbd, pre { font-family: var(--font-mono); }
code {
  background: var(--code-bg);
  border: 1px solid var(--border-soft);
  border-radius: 4px;
  padding: 0.1em 0.4em;
  font-size: 0.88em;
}
kbd {
  background: var(--surface);
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 5px;
  padding: 0.1em 0.5em;
  font-size: 0.8em;
  color: var(--text-secondary);
}
pre {
  background: var(--code-bg);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  overflow-x: auto;
  font-size: 0.86em;
}
pre code { border: none; background: none; padding: 0; }

/* ── skip link ─────────────────────────────────────────────────────── */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--accent); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ── top bar ───────────────────────────────────────────────────────── */
.topbar {
  position: sticky; top: 0; z-index: 100;
  height: var(--topbar-h);
  display: flex; align-items: center; gap: 16px;
  padding: 0 20px;
  background: color-mix(in srgb, var(--bg-raised) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.topbar-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 15px; color: var(--text); flex-shrink: 0; }
.topbar-brand img { width: 24px; height: 24px; }
.topbar-brand .tag {
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 600; letter-spacing: 0.06em;
  color: var(--accent-strong); background: var(--accent-soft); border: 1px solid var(--accent-line);
  border-radius: 5px; padding: 2px 7px; text-transform: uppercase;
}
.topbar-spacer { flex: 1; }
.menu-toggle {
  display: none; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  cursor: pointer;
}
.search-box {
  position: relative; width: 260px; max-width: 40vw;
}
.search-box input {
  width: 100%; padding: 8px 12px 8px 32px; font-size: 13.5px;
  border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: var(--surface); color: var(--text);
}
.search-box input:focus { outline: 2px solid var(--accent-line); outline-offset: 1px; }
.search-box svg { position: absolute; left: 9px; top: 50%; transform: translateY(-50%); width: 15px; height: 15px; color: var(--text-muted); }
.search-results {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0;
  background: var(--bg-raised); border: 1px solid var(--border); border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg); max-height: 60vh; overflow-y: auto; display: none; z-index: 50;
}
.search-results.open { display: block; }
.search-results a { display: block; padding: 9px 12px; color: var(--text); border-bottom: 1px solid var(--border-soft); font-size: 13.5px; }
.search-results a:hover { background: var(--surface-hover); text-decoration: none; }
.search-results .sr-section { color: var(--text-muted); font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; }
.search-empty { padding: 14px; color: var(--text-muted); font-size: 13px; }

.theme-toggle {
  display: flex; align-items: center; gap: 3px;
  background: var(--bg-sunken); border: 1px solid var(--border); border-radius: 999px; padding: 3px;
}
.theme-toggle button {
  display: flex; align-items: center; justify-content: center;
  width: 30px; height: 26px; border: none; border-radius: 999px; background: transparent;
  color: var(--text-muted); cursor: pointer;
}
.theme-toggle button.active { background: var(--bg-raised); color: var(--accent-strong); box-shadow: var(--shadow-sm); }
.theme-toggle svg { width: 15px; height: 15px; }

/* ── shell layout ──────────────────────────────────────────────────── */
.shell { display: flex; max-width: 1360px; margin: 0 auto; }
.sidebar {
  width: var(--sidebar-w); flex-shrink: 0;
  position: sticky; top: var(--topbar-h); align-self: flex-start;
  height: calc(100vh - var(--topbar-h)); overflow-y: auto;
  padding: 24px 14px 60px;
  border-right: 1px solid var(--border);
}
.sidebar nav > div { margin-bottom: 22px; }
.sidebar .nav-heading {
  font-size: 11px; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase;
  color: var(--text-muted); padding: 0 10px; margin-bottom: 6px;
}
.sidebar a.nav-link {
  display: block; padding: 7px 10px; border-radius: var(--radius-sm);
  color: var(--text-secondary); font-size: 14px; line-height: 1.35;
}
.sidebar a.nav-link:hover { background: var(--surface-hover); text-decoration: none; color: var(--text); }
.sidebar a.nav-link.current { background: var(--accent-soft); color: var(--accent-strong); font-weight: 600; }
.sidebar a.nav-sub { padding-left: 22px; font-size: 13.2px; }

main.content { flex: 1; min-width: 0; padding: 40px 48px 100px; }
.content > .page-header { margin-bottom: 8px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 11.5px; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--accent-strong); margin-bottom: 10px;
}
.page-header h1 { font-size: clamp(28px, 4vw, 38px); margin: 0 0 10px; }
.page-lede { font-size: 18px; color: var(--text-secondary); max-width: 70ch; margin: 0 0 32px; }

.content h2 { font-size: 24px; margin: 48px 0 14px; padding-top: 6px; scroll-margin-top: calc(var(--topbar-h) + 16px); }
.content h3 { font-size: 18px; margin: 30px 0 10px; scroll-margin-top: calc(var(--topbar-h) + 16px); }
.content h4 { font-size: 15px; margin: 22px 0 8px; }
.content p { color: var(--text-secondary); max-width: 74ch; }
.content ul, .content ol { color: var(--text-secondary); max-width: 74ch; padding-left: 22px; }
.content li { margin-bottom: 6px; }
.content li strong, .content p strong { color: var(--text); }
.content hr { border: none; border-top: 1px solid var(--border); margin: 44px 0; }

/* ── table of contents (right rail) ───────────────────────────────── */
.toc {
  width: 210px; flex-shrink: 0; position: sticky; top: calc(var(--topbar-h) + 24px);
  align-self: flex-start; padding: 24px 0 40px 0; font-size: 13px;
  max-height: calc(100vh - var(--topbar-h) - 24px); overflow-y: auto;
}
.toc .toc-label { text-transform: uppercase; letter-spacing: 0.07em; font-size: 11px; color: var(--text-muted); font-weight: 700; margin-bottom: 10px; }
.toc a { display: block; color: var(--text-muted); padding: 4px 0; border-left: 2px solid transparent; padding-left: 10px; }
.toc a:hover { color: var(--text); text-decoration: none; }
.toc a.active { color: var(--accent-strong); border-left-color: var(--accent); font-weight: 600; }

/* ── components ────────────────────────────────────────────────────── */
.callout {
  display: flex; gap: 12px; padding: 14px 16px; border-radius: var(--radius-md);
  border: 1px solid var(--border); background: var(--surface); margin: 20px 0; max-width: 74ch;
}
.callout svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; }
.callout p, .callout div { margin: 0; }
.callout p { color: var(--text-secondary); font-size: 14.5px; }
.callout strong { display: block; color: var(--text); margin-bottom: 2px; font-size: 14.5px; }
.callout.tip { background: var(--ok-soft); border-color: color-mix(in srgb, var(--ok) 35%, transparent); }
.callout.tip svg { color: var(--ok); }
.callout.warn { background: var(--warn-soft); border-color: color-mix(in srgb, var(--warn) 35%, transparent); }
.callout.warn svg { color: var(--warn); }
.callout.danger { background: var(--danger-soft); border-color: color-mix(in srgb, var(--danger) 35%, transparent); }
.callout.danger svg { color: var(--danger); }
.callout.info { background: var(--info-soft); border-color: color-mix(in srgb, var(--info) 35%, transparent); }
.callout.info svg { color: var(--info); }
.callout.note { background: var(--accent-soft); border-color: var(--accent-line); }
.callout.note svg { color: var(--accent-strong); }

.figure { margin: 22px 0 28px; max-width: 880px; }
.figure .frame {
  border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-md); background: var(--bg-raised);
}
.figure .frame img { width: 100%; }
.figure .chrome {
  display: flex; align-items: center; gap: 6px; padding: 9px 12px;
  border-bottom: 1px solid var(--border-soft); background: var(--bg-sunken);
}
.figure .chrome .dots { display: flex; gap: 5px; }
.figure .chrome .dots span { width: 9px; height: 9px; border-radius: 50%; background: var(--border); }
.figure .chrome .route { font-family: var(--font-mono); font-size: 11.5px; color: var(--text-muted); margin-left: 6px; }
.figure figcaption { margin-top: 9px; font-size: 13.5px; color: var(--text-muted); text-align: center; }
.figure figcaption .badge-live { color: var(--ok); font-weight: 600; }
.figure figcaption .badge-mock { color: var(--warn); font-weight: 600; }

.figure .frame .mock { padding: 0; }

.kv-table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 14px; max-width: 74ch; }
.kv-table th, .kv-table td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--border-soft); vertical-align: top; }
.kv-table th { color: var(--text-muted); font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.05em; font-weight: 700; }
.kv-table td { color: var(--text-secondary); }
.kv-table td:first-child, .kv-table th:first-child { color: var(--text); font-weight: 600; white-space: nowrap; }
.kv-table code { white-space: nowrap; }

.chip {
  display: inline-flex; align-items: center; gap: 4px; font-size: 12px; font-weight: 600;
  padding: 2px 9px; border-radius: 999px; border: 1px solid transparent;
}
.chip.blue { background: var(--info-soft); color: var(--info); border-color: color-mix(in srgb, var(--info) 30%, transparent); }
.chip.green { background: var(--ok-soft); color: var(--ok); border-color: color-mix(in srgb, var(--ok) 30%, transparent); }
.chip.orange { background: var(--warn-soft); color: var(--warn); border-color: color-mix(in srgb, var(--warn) 30%, transparent); }
.chip.red { background: var(--danger-soft); color: var(--danger); border-color: color-mix(in srgb, var(--danger) 30%, transparent); }
.chip.gray { background: var(--bg-sunken); color: var(--text-muted); border-color: var(--border); }
.chip.gold { background: var(--accent-soft); color: var(--accent-strong); border-color: var(--accent-line); }

.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin: 20px 0; max-width: 900px; }
.mini-card { border: 1px solid var(--border); border-radius: var(--radius-md); padding: 14px 16px; background: var(--surface); }
.mini-card h4 { margin: 0 0 6px; font-size: 14.5px; }
.mini-card p { margin: 0; font-size: 13.5px; color: var(--text-secondary); }

.steps { counter-reset: step; list-style: none; padding-left: 0; max-width: 74ch; }
.steps > li { counter-increment: step; position: relative; padding-left: 38px; margin-bottom: 18px; color: var(--text-secondary); }
.steps > li::before {
  content: counter(step); position: absolute; left: 0; top: -1px;
  width: 26px; height: 26px; border-radius: 50%; background: var(--accent-soft); color: var(--accent-strong);
  font-weight: 700; font-size: 13px; display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--accent-line);
}
.steps > li strong { color: var(--text); }

.pill-nav { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0; }
.pill-nav a {
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  border-radius: 999px; padding: 6px 13px; font-size: 13.5px; font-weight: 600;
}
.pill-nav a:hover { background: var(--surface-hover); text-decoration: none; border-color: var(--accent-line); }

.next-prev { display: flex; justify-content: space-between; gap: 16px; margin-top: 60px; padding-top: 24px; border-top: 1px solid var(--border); }
.next-prev a { border: 1px solid var(--border); border-radius: var(--radius-md); padding: 12px 16px; flex: 1; max-width: 320px; background: var(--surface); }
.next-prev a:hover { border-color: var(--accent-line); text-decoration: none; }
.next-prev .np-label { display: block; font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 3px; }
.next-prev .np-title { color: var(--text); font-weight: 600; font-size: 14.5px; }
.next-prev .np-next { text-align: right; margin-left: auto; }

.home-hero { padding: 56px 0 20px; max-width: 900px; }
.home-hero h1 { font-size: clamp(34px, 5vw, 50px); }
.home-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; margin: 30px 0 44px; max-width: 1040px; }
.home-card {
  border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 20px; background: var(--surface);
  display: flex; flex-direction: column; gap: 8px; transition: border-color 0.15s ease, transform 0.15s ease;
}
.home-card:hover { border-color: var(--accent-line); transform: translateY(-2px); text-decoration: none; }
.home-card .hc-icon {
  width: 36px; height: 36px; border-radius: 10px; background: var(--accent-soft); color: var(--accent-strong);
  display: flex; align-items: center; justify-content: center; margin-bottom: 4px;
}
.home-card .hc-icon svg { width: 18px; height: 18px; }
.home-card h3 { margin: 0; font-size: 16px; color: var(--text); }
.home-card p { margin: 0; font-size: 13.7px; color: var(--text-secondary); }

.footer { border-top: 1px solid var(--border); padding: 28px 48px 60px; color: var(--text-muted); font-size: 13px; }
.footer a { color: var(--text-secondary); }

/* mobile */
.sidebar-backdrop { display: none; }
@media (max-width: 1180px) {
  .toc { display: none; }
}
@media (max-width: 880px) {
  .menu-toggle { display: flex; }
  .search-box { display: none; }
  .sidebar {
    position: fixed; top: var(--topbar-h); left: 0; height: calc(100vh - var(--topbar-h));
    background: var(--bg-raised); z-index: 90; transform: translateX(-100%); transition: transform 0.2s ease;
    box-shadow: var(--shadow-lg); width: 84vw; max-width: 320px;
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-backdrop.open { display: block; position: fixed; inset: 0; top: var(--topbar-h); background: rgba(0,0,0,0.35); z-index: 80; }
  main.content { padding: 28px 20px 80px; }
  .footer { padding: 24px 20px 50px; }
}

::selection { background: var(--accent-soft); color: var(--text); }