/* slate: dark by default, technical; a monospace accent for the product's name and for code. */

:root {
  color-scheme: dark;
  --color-bg: #14161a;
  --color-fg: #e6e8ec;
  --color-muted: #9aa3ad;
  --color-accent: #5fd1b5;
  --color-on-accent: #0d1512;
  --color-surface: #1c1f25;
  --color-border: #2a2f37;
  --color-link: #8fe0cc;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-heading: var(--font-body);
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --size-base: 106.25%;
  --measure: 44rem;
  --radius: 4px;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --color-bg: #f4f5f7;
    --color-fg: #1a1d22;
    --color-muted: #5b6470;
    --color-accent: #0d7a63;
    --color-on-accent: #ffffff;
    --color-surface: #ffffff;
    --color-border: #d6dae0;
    --color-link: #0b6a56;
  }
}

:root[data-theme="light"] {
  color-scheme: light;
  --color-bg: #f4f5f7;
  --color-fg: #1a1d22;
  --color-muted: #5b6470;
  --color-accent: #0d7a63;
  --color-on-accent: #ffffff;
  --color-surface: #ffffff;
  --color-border: #d6dae0;
  --color-link: #0b6a56;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --color-bg: #14161a;
  --color-fg: #e6e8ec;
  --color-muted: #9aa3ad;
  --color-accent: #5fd1b5;
  --color-on-accent: #0d1512;
  --color-surface: #1c1f25;
  --color-border: #2a2f37;
  --color-link: #8fe0cc;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  font-size: var(--size-base);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  color: var(--color-fg);
  font-family: var(--font-body);
  line-height: 1.6;
}

.wrap {
  width: 100%;
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 1rem;
}

a {
  color: var(--color-link);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

a:hover { color: var(--color-accent); }

.prose a { overflow-wrap: anywhere; }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  padding: 0.5rem 0.75rem;
  background: var(--color-accent);
  color: var(--color-on-accent);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.skip-link:focus { top: 1rem; z-index: 1; }

/* Header */

.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  min-height: 3.5rem;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--color-fg);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.brand:hover { color: var(--color-accent); }
.brand-mark { flex: none; color: var(--color-accent); }

.site-nav ul, .footer-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
}

.site-nav a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-muted);
  text-decoration: none;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover { color: var(--color-fg); }

.site-nav a[aria-current="page"] {
  color: var(--color-fg);
  border-bottom-color: var(--color-accent);
}

/* Main */

.site-main { flex: 1; padding: 2.5rem 0 4rem; }
.site-main:focus { outline: 0; }

.prose h1 {
  font-family: var(--font-heading);
  font-size: 2.1rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

.prose h2 {
  font-size: 1.25rem;
  line-height: 1.3;
  margin: 2.25rem 0 0.75rem;
  padding-top: 0.5rem;
}

.prose h2::before {
  content: "// " / "";
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-weight: 400;
}

.prose h3 { font-size: 1.05rem; margin: 1.75rem 0 0.5rem; }

.prose p, .prose ul, .prose ol, .prose pre, .prose table, .prose blockquote { margin: 0 0 1rem; }
.prose li { margin: 0.3rem 0; }
.prose li::marker { color: var(--color-accent); }
.prose strong { color: var(--color-fg); }

.prose .meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-muted);
  margin: -0.5rem 0 1.75rem;
}

.prose .notice {
  padding: 0.85rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius);
}

.product, .prose code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  color: var(--color-accent);
}

.prose pre {
  padding: 0.85rem 1rem;
  overflow-x: auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.prose pre code { color: var(--color-fg); }

.prose table { border-collapse: collapse; width: 100%; }
.prose th, .prose td { text-align: left; padding: 0.4rem 0.6rem; border-bottom: 1px solid var(--color-border); }
.prose th { font-family: var(--font-mono); font-size: 0.85rem; color: var(--color-muted); }

.prose blockquote {
  padding-left: 1rem;
  border-left: 3px solid var(--color-border);
  color: var(--color-muted);
}

.prose hr { border: 0; border-top: 1px solid var(--color-border); margin: 2rem 0; }

/* Footer */

.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-muted);
  font-size: 0.85rem;
  padding: 1.75rem 0;
}

.site-footer .wrap {
  display: grid;
  gap: 1rem 2rem;
  grid-template-columns: 1fr auto;
  align-items: start;
}

.site-footer p { margin: 0; }
.site-footer .company { line-height: 1.5; }
.site-footer strong { color: var(--color-fg); }
.footer-nav { grid-column: 2; grid-row: 1 / span 2; }
.footer-nav a { font-family: var(--font-mono); color: var(--color-muted); text-decoration: none; }
.footer-nav a:hover, .footer-nav a[aria-current="page"] { color: var(--color-fg); }
.site-footer .contact a { font-family: var(--font-mono); color: var(--color-link); }

@media (max-width: 36rem) {
  html { font-size: 100%; }
  .prose h1 { font-size: 1.75rem; }
  .site-footer .wrap { grid-template-columns: 1fr; }
  .footer-nav { grid-column: 1; grid-row: auto; }
}

@media print {
  .site-header, .site-footer, .skip-link { display: none; }
  body { background: #fff; color: #000; }
  a { color: #000; }
}