:root {
  color-scheme: light dark;
  --bg: #f7f7f8;
  --card-bg: #ffffff;
  --text: #1a1a1a;
  --text-muted: #5a5a5f;
  --accent: #25d366;
  --accent-dark: #128c4a;
  --border: #e5e5e7;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --card-bg: #1c1c1e;
    --text: #f2f2f2;
    --text-muted: #a0a0a5;
    --border: #2c2c2e;
  }
}

* {
  box-sizing: border-box;
}

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

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

header.site {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 760px;
  margin: 0 auto;
  padding: 20px 20px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
  color: var(--text);
}

.brand .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

nav.site a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  margin-left: 20px;
}

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

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px;
}

h1 {
  font-size: 1.9rem;
  margin: 0 0 8px;
}

h2 {
  font-size: 1.2rem;
  margin: 32px 0 8px;
}

p {
  color: var(--text-muted);
  margin: 0 0 12px;
}

.updated {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

ul {
  color: var(--text-muted);
  padding-left: 20px;
}

li {
  margin-bottom: 6px;
}

a.contact {
  color: var(--accent-dark);
  font-weight: 500;
}

.hero {
  text-align: center;
  padding: 96px 20px;
}

.hero h1 {
  font-size: 2.6rem;
  margin-bottom: 12px;
}

.hero p {
  font-size: 1.1rem;
}

.hero .badge {
  display: inline-block;
  background: rgba(37, 211, 102, 0.12);
  color: var(--accent-dark);
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
}

footer.site {
  text-align: center;
  padding: 24px 20px 40px;
  color: var(--text-muted);
  font-size: 0.85rem;
}