/* Étale — shared minimal stylesheet for the public website.
   Mobile-first, no framework, no JS. Honours system dark mode. */

:root {
  --teal: #5ac8fa;            /* matches AccentColor in the iOS app */
  --teal-dark: #2a99d4;
  --bg: #ffffff;
  --bg-card: #f7f9fc;
  --text: #1c1c1e;
  --text-secondary: #6c6c70;
  --border: #e5e7eb;
  --link: #2a99d4;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0d12;
    --bg-card: #161922;
    --text: #f2f2f7;
    --text-secondary: #a0a0a8;
    --border: #2a2d36;
    --link: #5ac8fa;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

header.site-header {
  border-bottom: 1px solid var(--border);
  padding: 18px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 720px;
  margin: 0 auto;
}

header.site-header .brand {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.01em;
}

header.site-header nav a {
  color: var(--text-secondary);
  text-decoration: none;
  margin-left: 16px;
  font-size: 0.95rem;
}

header.site-header nav a:hover,
header.site-header nav a.active {
  color: var(--text);
}

h1 {
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}

h2 {
  font-size: 1.3rem;
  font-weight: 600;
  margin: 32px 0 12px;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 20px 0 6px;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin: 0 0 28px;
}

a {
  color: var(--link);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

ul {
  padding-left: 1.2em;
}
li {
  margin: 6px 0;
}

.hero {
  background: linear-gradient(180deg, color-mix(in srgb, var(--teal) 18%, transparent), transparent);
  padding: 36px 24px;
  border-radius: 16px;
  border: 1px solid var(--border);
  margin: 16px 0 32px;
}

.hero h1 {
  font-size: 2.4rem;
  margin-bottom: 12px;
}

.features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 16px 0 24px;
}
@media (min-width: 640px) {
  .features { grid-template-columns: 1fr 1fr; }
}

.feature {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}
.feature h3 { margin-top: 0; color: var(--teal-dark); }
.feature p { margin: 6px 0 0; color: var(--text-secondary); font-size: 0.95rem; }

.disclaimer {
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-left: 3px solid var(--teal);
  padding: 4px 12px;
  margin: 24px 0;
}

footer.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 48px;
  padding: 24px 20px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-align: center;
}

.lang-switch {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.lang-switch a {
  color: var(--text-secondary);
  margin: 0 4px;
}
.lang-switch a.active {
  color: var(--text);
  font-weight: 600;
}

.lang-block { display: none; }
.lang-block.active { display: block; }

code, pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.92em;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
}
code { padding: 1px 5px; }
pre { padding: 12px 16px; overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: 12px 0;
}
th, td {
  border-bottom: 1px solid var(--border);
  padding: 8px 6px;
  text-align: left;
}
th {
  color: var(--text-secondary);
  font-weight: 600;
}