:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #5f6368;
  --accent: #1a5fb4;
  --card: #f4f5f7;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --fg: #e8e9eb;
    --muted: #a1a5ab;
    --accent: #6fa8f5;
    --card: #1f2226;
  }
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light dark;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 16px;
}

header.site-header {
  border-bottom: 1px solid var(--card);
  padding: 20px 0;
  margin-bottom: 32px;
}

header.site-header .brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--fg);
  text-decoration: none;
}

nav.site-nav {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

nav.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

nav.site-nav a:hover,
nav.site-nav a:focus-visible {
  color: var(--accent);
  text-decoration: underline;
}

main {
  padding-bottom: 48px;
}

h1 {
  font-size: 1.8rem;
  line-height: 1.25;
  margin: 0 0 16px;
  text-wrap: balance;
}

h2 {
  font-size: 1.3rem;
  margin: 32px 0 12px;
  scroll-margin-top: 96px;
  text-wrap: balance;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: 16px;
  transform: translateY(-200%);
  background: var(--accent);
  color: #ffffff;
  padding: 10px 16px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.15s ease;
  z-index: 100;
}

.skip-link:focus {
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .skip-link {
    transition: none;
  }
}

p {
  margin: 0 0 16px;
}

ul,
ol {
  margin: 0 0 16px;
  padding-left: 24px;
}

li {
  margin-bottom: 8px;
}

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

.card {
  background: var(--card);
  border-radius: 8px;
  padding: 20px;
  margin: 0 0 16px;
}

.aff-notice {
  background: var(--card);
  border-left: 4px solid var(--accent);
  padding: 14px 16px;
  margin: 0 0 24px;
  border-radius: 4px;
  font-size: 0.95rem;
  color: var(--muted);
}

.cta {
  display: block;
  width: 100%;
  text-align: center;
  background: var(--accent);
  color: #ffffff;
  text-decoration: none;
  font-weight: 600;
  padding: 14px 20px;
  border-radius: 6px;
  margin: 16px 0;
}

.cta:hover,
.cta:focus-visible {
  opacity: 0.9;
}

footer.site-footer {
  border-top: 1px solid var(--card);
  padding: 24px 0 40px;
  color: var(--muted);
  font-size: 0.9rem;
}

footer.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 12px;
}

footer.site-footer a {
  color: var(--muted);
}

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