/* Shared styles for every page on the site. */

:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --text: #1c1c1e;
  --muted: #5c5c63;
  --border: #e2e2e0;
  --accent: #0a5fd6;
  --accent-text: #ffffff;
  --radius: 14px;
  --max: 46rem;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111113;
    --surface: #1c1c1f;
    --text: #f2f2f4;
    --muted: #a6a6ad;
    --border: #2e2e33;
    --accent: #5aa2ff;
    --accent-text: #0b1220;
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 1.0625rem/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  padding: 0.5rem 0.75rem;
  background: var(--accent);
  color: var(--accent-text);
  border-radius: 8px;
  z-index: 10;
}

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

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

/* Header and navigation */

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

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.25rem;
  padding-top: 0.875rem;
  padding-bottom: 0.875rem;
}

.site-name {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 0.25em;
}

/* Content */

main {
  padding: 2.5rem 0 3rem;
}

h1,
h2,
h3 {
  line-height: 1.25;
}

h1 {
  font-size: clamp(1.9rem, 5vw, 2.5rem);
  margin: 0 0 0.75rem;
}

h2 {
  font-size: 1.35rem;
  margin: 2.25rem 0 0.75rem;
}

h3 {
  font-size: 1.05rem;
  margin: 0 0 0.25rem;
}

.lede {
  font-size: 1.2rem;
  color: var(--muted);
  margin-top: 0;
}

.meta {
  color: var(--muted);
  font-size: 0.95rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.app-list {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.app-list .card p {
  margin: 0.25rem 0 0.75rem;
  color: var(--muted);
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.features p {
  margin: 0;
  color: var(--muted);
}

.notice {
  border-left: 4px solid var(--accent);
  background: var(--surface);
  padding: 0.75rem 1rem;
  border-radius: 0 8px 8px 0;
}

.placeholder {
  background: #fff3bf;
  color: #3d2e00;
  padding: 0 0.25em;
  border-radius: 4px;
}

.policy h2 {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

.policy li + li {
  margin-top: 0.4rem;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer .wrap {
  padding-top: 1.25rem;
  padding-bottom: 2rem;
}

.site-footer p {
  margin: 0.25rem 0;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}