/* Static public pages (guide, privacy, contact, support). Same palette, spacing, radius and
   font stack as the app (src/styles/tokens.css), but self-contained: no React, no third-party
   fonts or scripts. */

:root {
  --color-primary: #2954ff;
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-border: #e5e5e5;
  --color-text: #111111;
  --color-text-muted: #5c5f66;
  --color-note-bg: #eef2ff;
  --color-note-border: #7181c4;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;

  --radius-sm: 8px;
  --radius-md: 14px;

  --font-sans:
    -apple-system, BlinkMacSystemFont, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic', 'Segoe UI',
    system-ui, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-primary: #6f8cff;
    --color-bg: #0a0a0a;
    --color-surface: #161616;
    --color-border: #2b2b2b;
    --color-text: #f5f5f5;
    --color-text-muted: #a3a3a3;
    --color-note-bg: #1a2035;
    --color-note-border: #7482c2;
  }
}

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

html {
  color-scheme: light dark;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-wrap: anywhere;
}

a {
  color: var(--color-primary);
}

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

/* Header and footer navigation: every link is at least 44px tall. */

.site-header,
.site-footer,
main {
  max-width: 720px;
  margin: 0 auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2) var(--space-4);
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}

.site-header a,
.site-footer a,
.breadcrumb a,
.summary a,
.related a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.site-name {
  font-weight: 800;
  color: var(--color-text);
  text-decoration: none;
}

.app-link {
  padding: 0 var(--space-4);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  font-weight: 700;
  text-decoration: none;
}

main {
  padding-top: var(--space-4);
  padding-bottom: var(--space-8);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0 var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.breadcrumb li + li::before {
  content: '›';
  margin-right: var(--space-2);
}

/* Article */

h1,
h2 {
  line-height: 1.35;
  letter-spacing: -0.01em;
}

h1 {
  margin: var(--space-4) 0 var(--space-2);
  font-size: 1.75rem;
  font-weight: 800;
}

h2 {
  margin: var(--space-8) 0 var(--space-3);
  font-size: 1.35rem;
  font-weight: 700;
  scroll-margin-top: var(--space-4);
}

p {
  margin: 0 0 var(--space-3);
}

.meta {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.lead {
  font-size: 1.05rem;
}

article ul,
article ol,
.summary ul {
  margin: 0 0 var(--space-4);
  padding-left: var(--space-6);
}

article li {
  margin-bottom: var(--space-2);
}

pre.instructions {
  margin: 0 0 var(--space-4);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  font-size: 0.9rem;
  line-height: 1.7;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.summary {
  margin: var(--space-6) 0;
  padding: var(--space-4) var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.summary h2 {
  margin-top: 0;
  font-size: 1.1rem;
}

.summary ul {
  margin-bottom: 0;
}

.note {
  margin: var(--space-4) 0;
  padding: var(--space-3) var(--space-4);
  border-left: 4px solid var(--color-note-border);
  border-radius: var(--radius-sm);
  background: var(--color-note-bg);
}

.note p {
  margin: 0;
}

.related ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.related li {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.related a {
  font-weight: 700;
}

.related span {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.site-footer {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-4);
  padding-bottom: var(--space-8);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.site-footer ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0 var(--space-4);
  margin: 0 0 var(--space-2);
  padding: 0;
  list-style: none;
}

@media (max-width: 380px) {
  h1 {
    font-size: 1.5rem;
  }

  .summary {
    padding: var(--space-3) var(--space-4);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}