/* MnemoPay Docs — local layout on top of design-system tokens.
   Dark + gold + blue. Inter Tight (sans), Fraunces (display), JetBrains Mono (code). */

:root {
  --doc-bg: #0c0d10;
  --doc-bg-elev: #14161a;
  --doc-bg-deep: #07080a;
  --doc-ink: #f4f5f7;
  --doc-ink-soft: #c8cbd1;
  --doc-ink-muted: #888c95;
  --doc-line: rgba(255, 255, 255, 0.08);
  --doc-line-strong: rgba(255, 255, 255, 0.18);
  --doc-gold: #f4c84b;
  --doc-gold-soft: rgba(244, 200, 75, 0.16);
  --doc-blue: #6aa6ff;
  --doc-blue-soft: rgba(106, 166, 255, 0.16);
  --doc-code-bg: #181a1f;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--doc-bg);
  color: var(--doc-ink);
  font-family: 'Inter Tight', system-ui, -apple-system, Segoe UI, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--doc-blue); text-decoration: none; transition: color 120ms; }
a:hover { color: var(--doc-gold); }

h1, h2, h3, h4 {
  font-family: 'Fraunces', ui-serif, Georgia, serif;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--doc-ink);
  margin: 1.5em 0 0.5em;
}
h1 { font-size: clamp(32px, 4vw, 44px); line-height: 1.15; }
h2 { font-size: clamp(24px, 3vw, 30px); line-height: 1.2; }
h3 { font-size: 20px; line-height: 1.3; }

p { margin: 0 0 1em; color: var(--doc-ink-soft); }

code {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  background: var(--doc-code-bg);
  border: 1px solid var(--doc-line);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--doc-gold);
}

pre {
  background: var(--doc-code-bg);
  border: 1px solid var(--doc-line);
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.55;
}
pre code {
  background: transparent;
  border: 0;
  padding: 0;
  color: var(--doc-ink);
}

hr {
  border: 0;
  border-top: 1px solid var(--doc-line);
  margin: 32px 0;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin: 1em 0;
  font-size: 14px;
}
th, td {
  border: 1px solid var(--doc-line);
  padding: 8px 12px;
  text-align: left;
}
th {
  background: var(--doc-bg-elev);
  color: var(--doc-ink);
  font-weight: 600;
}

blockquote {
  margin: 1em 0;
  border-left: 3px solid var(--doc-gold);
  padding: 4px 16px;
  color: var(--doc-ink-soft);
  background: var(--doc-bg-elev);
  border-radius: 0 6px 6px 0;
}

ul, ol { margin: 0 0 1em; padding-left: 22px; color: var(--doc-ink-soft); }
li { margin: 0.25em 0; }

/* ── Nav ───────────────────────────────────────────── */
.docs-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(12, 13, 16, 0.85);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--doc-line);
}
.docs-nav__inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.docs-nav__brand {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  color: var(--doc-ink);
  font-family: 'Fraunces', ui-serif, serif;
  font-weight: 600;
  font-size: 19px;
  letter-spacing: -0.01em;
}
.docs-nav__brand:hover { color: var(--doc-gold); }
.docs-nav__mark { color: var(--doc-ink); }
.docs-nav__suffix { color: var(--doc-gold); font-family: 'JetBrains Mono', monospace; font-size: 13px; }

.docs-nav__links {
  display: flex;
  gap: 22px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.docs-nav__links li { margin: 0; }
.docs-nav__links a {
  font-size: 14px;
  color: var(--doc-ink-soft);
}
.docs-nav__links a[aria-current="page"] {
  color: var(--doc-gold);
}

.docs-nav__cta {
  margin-left: auto;
  padding: 8px 14px;
  border: 1px solid var(--doc-line-strong);
  border-radius: 999px;
  font-size: 13px;
  color: var(--doc-ink);
  font-family: 'JetBrains Mono', monospace;
}
.docs-nav__cta:hover {
  border-color: var(--doc-gold);
  color: var(--doc-gold);
}

@media (max-width: 760px) {
  .docs-nav__links { display: none; }
}

/* ── Hero (index) ──────────────────────────────────── */
.docs-hero {
  border-bottom: 1px solid var(--doc-line);
  background:
    radial-gradient(900px 380px at 80% -10%, var(--doc-gold-soft), transparent 60%),
    radial-gradient(700px 320px at 10% -10%, var(--doc-blue-soft), transparent 60%);
}
.docs-hero__inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 96px 24px 80px;
}
.docs-hero__eyebrow {
  color: var(--doc-gold);
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 16px;
}
.docs-hero h1 {
  margin: 0 0 16px;
  max-width: 720px;
}
.docs-hero__lede {
  max-width: 600px;
  font-size: 17px;
  color: var(--doc-ink-soft);
  margin: 0 0 24px;
}
.docs-hero__ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.docs-btn {
  display: inline-flex;
  align-items: center;
  padding: 11px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  font-family: 'Inter Tight', sans-serif;
}
.docs-btn--primary {
  background: var(--doc-gold);
  color: #0c0d10;
  border: 1px solid var(--doc-gold);
}
.docs-btn--primary:hover { background: #ffd766; color: #0c0d10; }
.docs-btn--ghost {
  background: transparent;
  border: 1px solid var(--doc-line-strong);
  color: var(--doc-ink);
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
}
.docs-btn--ghost:hover { border-color: var(--doc-gold); color: var(--doc-gold); }

/* ── Grid (index cards) ────────────────────────────── */
.docs-grid {
  max-width: 1240px;
  margin: 0 auto;
  padding: 64px 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}
.doc-card {
  display: block;
  border: 1px solid var(--doc-line);
  background: var(--doc-bg-elev);
  border-radius: 12px;
  padding: 22px 22px 20px;
  color: var(--doc-ink);
  transition: border-color 200ms, transform 200ms;
}
.doc-card:hover {
  border-color: var(--doc-gold);
  transform: translateY(-1px);
}
.doc-card h3 { margin: 0 0 8px; font-size: 19px; }
.doc-card p { margin: 0; font-size: 14px; color: var(--doc-ink-muted); }

/* ── Article layout ───────────────────────────────── */
.docs-main {
  max-width: 1240px;
  margin: 0 auto;
  padding: 48px 24px 80px;
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 40px;
}
@media (max-width: 880px) {
  .docs-main { grid-template-columns: 1fr; }
  .docs-sidebar { order: 2; border-top: 1px solid var(--doc-line); padding-top: 32px; }
}

.docs-sidebar {
  position: sticky;
  top: 80px;
  align-self: start;
  font-size: 13px;
}
.docs-sidebar h4 {
  margin: 0 0 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--doc-ink-muted);
}
.docs-sidebar__list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.docs-sidebar__list li { margin: 0; }
.docs-sidebar__list a {
  display: block;
  padding: 6px 10px;
  border-radius: 6px;
  color: var(--doc-ink-soft);
  border-left: 2px solid transparent;
}
.docs-sidebar__list a:hover { background: var(--doc-bg-elev); color: var(--doc-ink); }
.docs-sidebar__list a[aria-current="page"] {
  color: var(--doc-gold);
  border-left-color: var(--doc-gold);
  background: var(--doc-gold-soft);
}
.docs-sidebar__hint {
  font-size: 12px;
  color: var(--doc-ink-muted);
  margin: 6px 0;
}
.docs-sidebar hr {
  margin: 20px 0;
}

.docs-article {
  max-width: 760px;
  font-size: 16px;
  line-height: 1.7;
}
.docs-article > :first-child { margin-top: 0; }

/* ── Footer ───────────────────────────────────────── */
.docs-footer {
  border-top: 1px solid var(--doc-line);
  background: var(--doc-bg-deep);
}
.docs-footer__inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--doc-ink-muted);
}
.docs-footer__inner a { color: var(--doc-ink-muted); }
.docs-footer__inner a:hover { color: var(--doc-gold); }