/* Velocity Docs — single small stylesheet, no frameworks. */

:root {
  --ink: #16181d;
  --ink-soft: #5a616e;
  --line: #e6e8ec;
  --accent: #0f62fe;
  --accent-ink: #0043ce;
  --surface: #f6f7f9;
  --code-bg: #f0f2f5;
  --max: 1200px;
  --radius: 8px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  line-height: 1.65;
  background: #fff;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }

/* ---------- Top bar ---------- */
.topbar { border-bottom: 1px solid var(--line); position: sticky; top: 0; background: #fff; z-index: 50; }
.topbar__inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.topbar__brand { font-size: 1.25rem; font-weight: 800; letter-spacing: -0.02em; color: var(--ink); }
.topbar__brand:hover { text-decoration: none; }
.topbar__brand-sub { color: var(--accent); font-weight: 600; margin-left: 0.35rem; font-size: 0.9rem; }
.topbar__nav { display: flex; gap: 1.5rem; }
.topbar__nav a { color: var(--ink-soft); font-size: 0.9375rem; font-weight: 500; }
.topbar__nav a:hover { color: var(--ink); text-decoration: none; }

/* ---------- Landing ---------- */
.hero { padding: 5rem 0 4rem; text-align: center; }
.hero h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); letter-spacing: -0.03em; line-height: 1.1; margin-bottom: 1rem; }
.hero p.lede { font-size: 1.1875rem; color: var(--ink-soft); max-width: 640px; margin: 0 auto 2rem; }
.hero__actions { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }

.btn { display: inline-flex; align-items: center; padding: 0.7rem 1.4rem; border-radius: var(--radius); font-weight: 600; font-size: 0.9375rem; }
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-ink); text-decoration: none; }
.btn--ghost { border: 1px solid var(--line); color: var(--ink); }
.btn--ghost:hover { border-color: var(--ink-soft); text-decoration: none; }

.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.25rem; padding: 2rem 0 4rem; }
.feature-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; }
.feature-card h3 { font-size: 1.0625rem; margin-bottom: 0.5rem; letter-spacing: -0.01em; }
.feature-card p { font-size: 0.9375rem; color: var(--ink-soft); }
.feature-card a { font-size: 0.875rem; font-weight: 600; display: inline-block; margin-top: 0.75rem; }

/* ---------- Docs layout ---------- */
.docs-grid { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 3rem; padding-top: 2.5rem; padding-bottom: 4rem; }

.docs-sidebar { position: sticky; top: 84px; align-self: start; }
.docs-sidebar__list { list-style: none; display: flex; flex-direction: column; gap: 0.125rem; }
.docs-sidebar__list a { display: block; padding: 0.4rem 0.75rem; border-radius: 6px; color: var(--ink-soft); font-size: 0.9375rem; }
.docs-sidebar__list a:hover { background: var(--surface); color: var(--ink); text-decoration: none; }
.docs-sidebar__list a.is-active { background: var(--surface); color: var(--accent-ink); font-weight: 600; }

.docs-content { max-width: 760px; }
.docs-content h1 { font-size: 2rem; letter-spacing: -0.02em; margin-bottom: 0.75rem; }
.docs-content h2 { font-size: 1.4rem; letter-spacing: -0.01em; margin: 2.25rem 0 0.75rem; padding-top: 1.25rem; border-top: 1px solid var(--line); }
.docs-content h3 { font-size: 1.1rem; margin: 1.5rem 0 0.5rem; }
.docs-content p { margin-bottom: 1rem; }
.docs-content ul, .docs-content ol { margin: 0 0 1rem 1.4rem; }
.docs-content li { margin-bottom: 0.375rem; }
.docs-content .lede { font-size: 1.0625rem; color: var(--ink-soft); margin-bottom: 1.5rem; }

.docs-content code {
  font-family: ui-monospace, SFMono-Regular, "Cascadia Code", Consolas, monospace;
  font-size: 0.875em;
  background: var(--code-bg);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

.callout { border-left: 3px solid var(--accent); background: var(--surface); border-radius: 0 var(--radius) var(--radius) 0; padding: 0.875rem 1.125rem; margin: 1.25rem 0; font-size: 0.9375rem; }
.callout--tip { border-left-color: #24a148; }
.callout strong { display: inline-block; }

.steps { counter-reset: step; list-style: none; margin-left: 0 !important; }
.steps > li { counter-increment: step; position: relative; padding-left: 2.5rem; margin-bottom: 0.875rem; }
.steps > li::before {
  content: counter(step);
  position: absolute; left: 0; top: 0.1rem;
  width: 1.6rem; height: 1.6rem; border-radius: 50%;
  background: var(--surface); border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8125rem; font-weight: 700; color: var(--accent-ink);
}

.setting-table { width: 100%; border-collapse: collapse; margin: 1rem 0 1.5rem; font-size: 0.9rem; }
.setting-table th, .setting-table td { text-align: left; padding: 0.5rem 0.75rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.setting-table th { font-weight: 600; background: var(--surface); }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line); margin-top: 2rem; }
.footer__inner { padding: 2rem 1.25rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; font-size: 0.875rem; color: var(--ink-soft); }

/* ---------- Mobile ---------- */
@media (max-width: 900px) {
  .docs-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .docs-sidebar { position: static; border: 1px solid var(--line); border-radius: var(--radius); padding: 0.75rem; }
  .docs-sidebar__list { flex-direction: row; flex-wrap: wrap; gap: 0.25rem; }
  .topbar__nav { gap: 1rem; }
  .hero { padding: 3rem 0 2.5rem; }
}