:root {
  color-scheme: light dark;
  --bg: #f6f3ee;
  --card: #ffffff;
  --text: #222222;
  --muted: #6b6560;
  --accent: #9c3b22;
  --border: #e4ded5;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1a18;
    --card: #2a2825;
    --text: #eeeeee;
    --muted: #a8a29a;
    --accent: #e0805f;
    --border: #3a3733;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.5;
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 48px 16px;
}

h1 {
  font-size: 2rem;
  margin: 0;
}
h1 span { color: var(--accent); font-weight: 600; }
header p { color: var(--muted); margin: .25rem 0 2rem; }

.cards {
  display: grid;
  gap: 12px;
}

.card {
  display: grid;
  gap: 2px;
  padding: 1.1rem 1.25rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: inherit;
  text-decoration: none;
  transition: border-color .15s, transform .15s;
}
.card:hover, .card:focus-visible { border-color: var(--accent); transform: translateY(-1px); }
.card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.card-title { font-weight: 650; font-size: 1.1rem; color: var(--accent); }
.card-text { color: var(--muted); }
.card-note { font-size: .8rem; color: var(--muted); }
.card-note::before { content: "🔒 "; }