:root {
  color-scheme: dark light;
  --bg: #000;
  --surface: #1c1c1e;
  --text: #f2f2f7;
  --text-secondary: #aeaeb2;
  --accent: #0a84ff;
  --border: #2c2c2e;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #fff;
    --surface: #f2f2f7;
    --text: #1c1c1e;
    --text-secondary: #6c6c70;
    --accent: #007aff;
    --border: #e5e5ea;
  }
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  margin: 0;
  padding: 2rem 1.25rem 4rem;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 680px;
  margin: 0 auto;
}

header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.25rem;
  margin-bottom: 2rem;
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 0.25rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

p, li {
  color: var(--text);
  font-size: 1rem;
}

ul {
  padding-left: 1.25rem;
}

li {
  margin-bottom: 0.35rem;
}

.muted {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 0;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

nav {
  margin-top: 1rem;
  font-size: 0.9rem;
}

nav a {
  margin-right: 1rem;
}

.support-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}

.support-card strong {
  display: block;
  margin-bottom: 0.25rem;
}

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-secondary);
}