:root {
  --bg: #fafaf8;
  --fg: #1c1c1a;
  --muted: #6b6b63;
  --border: #e2e0d8;
  --accent: #8a5cf6;
  --accent-fg: #ffffff;
  --card-bg: #ffffff;
  --danger: #b3261e;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16151a;
    --fg: #ece9e2;
    --muted: #9a978d;
    --border: #33313a;
    --accent: #a98bfa;
    --accent-fg: #16151a;
    --card-bg: #1e1d24;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
}

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

header.site-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 2rem;
}

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

nav.site-nav a, nav.site-nav button.link {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  margin-left: 1rem;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

nav.site-nav a:hover, nav.site-nav button.link:hover { color: var(--fg); }

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
}

h1 { font-size: 1.5rem; margin: 0 0 0.5rem; }
h2 { font-size: 1.1rem; margin: 0 0 0.5rem; }
p.muted, span.muted { color: var(--muted); font-size: 0.9rem; }

form.stack { display: flex; flex-direction: column; gap: 0.75rem; max-width: 360px; }

input[type="email"], input[type="text"] {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card-bg);
  color: var(--fg);
  font-size: 1rem;
}

button, .button {
  padding: 0.55rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-fg);
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}

button.secondary, .button.secondary {
  background: transparent;
  color: var(--fg);
  border-color: var(--border);
}

button.danger { border-color: var(--danger); background: transparent; color: var(--danger); }

.error { color: var(--danger); font-size: 0.9rem; }

ul.plain { list-style: none; margin: 0; padding: 0; }