/* ---------------------------------------------------------------------------
   Accountflow developer portal shell.
   Tokens lifted verbatim from the ui repo's design system (ui/src/index.css —
   warm paper on ink, deep-plum accent; bright indigo accent in dark). If the
   ui retunes a colour, mirror it here.
   --------------------------------------------------------------------------- */

:root {
  --radius: 0.625rem;

  --paper: #FFFFFF;
  --paper-2: #F5F4EF;
  --paper-3: #FAFAF7;
  --ink: #1A1A19;
  --ink-2: #2C2B29;
  --mute: #716F6A;
  --mute-2: #A3A09A;
  --line: #E5E3DC;
  --hair: #EBE9E2;
  --accent: #3E1C46;
  --accent-soft: #EFE4F0;
  --accent-ink: #2B0F33;
  --info: #4B6780;
  --info-soft: #E4EAF0;
  --ok: #497145;
  --ok-soft: #E5EDE1;
  --warn: #9B5527;
  --warn-soft: #FBEFDE;
  --red: #A4332A;
  --red-soft: #F6E6E3;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto',
    'Helvetica Neue', sans-serif;
  --font-serif: 'Halant', 'Instrument Serif', 'Iowan Old Style', Georgia, serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, 'SF Mono', Menlo,
    monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #1A1A19;
    --paper-2: #24231F;
    --paper-3: #2C2B27;
    --ink: #F5F4EF;
    --ink-2: #E5E3DC;
    --mute: #A3A09A;
    --mute-2: #75736E;
    --line: #33322E;
    --hair: #2A2925;
    --accent: #A5A0EE;
    --accent-soft: #2F3249;
    --accent-ink: #C9C6F5;
    --info: #93A7BA;
    --info-soft: #24303B;
    --ok: #8BAA85;
    --ok-soft: #243028;
    --warn: #C08B5C;
    --warn-soft: #3A2E22;
    --red: #C77B72;
    --red-soft: #3A2624;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.65;
}

/* ── Top navigation ──────────────────────────────────────────────────────── */

.topnav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 0 28px;
  height: 56px;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--hair);
}

.topnav .wordmark {
  font-family: var(--font-sans);
  font-weight: 650;
  font-size: 15px;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}

.topnav .wordmark em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
  color: var(--accent);
  margin-left: 2px;
}

.topnav nav {
  display: flex;
  gap: 4px;
  overflow-x: auto;
}

.topnav nav a {
  color: var(--mute);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  padding: 6px 10px;
  border-radius: calc(var(--radius) - 4px);
  white-space: nowrap;
}

.topnav nav a:hover { color: var(--ink); background: var(--paper-2); }
.topnav nav a[aria-current="page"] { color: var(--accent); background: var(--accent-soft); }

.topnav .env-pill {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--mute);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 10px;
  white-space: nowrap;
}

/* ── Prose pages (guides) ────────────────────────────────────────────────── */

.page {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 28px 96px;
}

.page h1 {
  font-size: 34px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 650;
  margin: 0 0 6px;
  text-wrap: balance;
}

.page .lede { color: var(--mute); font-size: 16px; margin: 0 0 36px; }

.page h2 {
  font-size: 21px;
  font-weight: 640;
  letter-spacing: -0.015em;
  margin: 44px 0 12px;
  padding-top: 20px;
  border-top: 1px solid var(--hair);
}

.page h3 { font-size: 16.5px; font-weight: 620; margin: 28px 0 8px; }

.page p, .page li { color: var(--ink-2); }
.page a { color: var(--accent); text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--accent) 35%, transparent); text-underline-offset: 2px; }
.page a:hover { text-decoration-color: var(--accent); }

.page code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  background: var(--paper-2);
  border: 1px solid var(--hair);
  border-radius: 5px;
  padding: 0.1em 0.35em;
}

.page pre {
  background: var(--paper-2);
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  padding: 16px 18px;
  overflow-x: auto;
  line-height: 1.55;
}

.page pre code { background: none; border: none; padding: 0; font-size: 12.5px; }

.page table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  display: block;
  overflow-x: auto;
}

.page th {
  text-align: left;
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--mute);
  border-bottom: 1px solid var(--line);
  padding: 8px 14px 8px 0;
}

.page td {
  border-bottom: 1px solid var(--hair);
  padding: 9px 14px 9px 0;
  vertical-align: top;
}

.page blockquote {
  margin: 20px 0;
  padding: 12px 18px;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--ink-2);
}

.page blockquote p { margin: 0; }
.page hr { border: none; border-top: 1px solid var(--hair); margin: 36px 0; }

/* ── Landing ─────────────────────────────────────────────────────────────── */

.hero {
  max-width: 980px;
  margin: 0 auto;
  padding: 88px 28px 40px;
}

.hero h1 {
  font-size: 46px;
  line-height: 1.08;
  letter-spacing: -0.025em;
  font-weight: 650;
  margin: 0 0 14px;
  text-wrap: balance;
  max-width: 21ch;
}

.hero h1 em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
  color: var(--accent);
}

.hero .sub { color: var(--mute); font-size: 17px; max-width: 58ch; margin: 0 0 28px; }

.hero .base-url {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 18px;
  color: var(--ink-2);
}

.hero .base-url .method { color: var(--ok); font-weight: 600; }

.landing-grid {
  max-width: 980px;
  margin: 0 auto;
  padding: 8px 28px 96px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 16px;
}

.card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--paper-3);
  border: 1px solid var(--hair);
  border-radius: calc(var(--radius) + 4px);
  padding: 22px 22px 18px;
  transition: border-color 120ms ease;
}

.card:hover { border-color: var(--line); background: var(--paper-2); }
.card h3 { margin: 0 0 6px; font-size: 15.5px; font-weight: 630; }
.card p { margin: 0; color: var(--mute); font-size: 13.5px; line-height: 1.55; }
.card .go { display: inline-block; margin-top: 12px; font-size: 13px; font-weight: 550; color: var(--accent); }

.snippet {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 28px 26px;
}

.snippet pre {
  background: var(--paper-2);
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  padding: 18px 20px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-2);
  margin: 0;
}

.snippet .comment { color: var(--mute); }

footer.colophon {
  border-top: 1px solid var(--hair);
  color: var(--mute-2);
  font-size: 12.5px;
  text-align: center;
  padding: 26px;
}

footer.colophon a { color: var(--mute); }