:root {
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #666666;
  --border: #e2e2e2;
  --accent: #2563eb;
  --card: #f7f7f8;
  --todo-bg: #fff6d6;
  --todo-fg: #7a5c00;
  --todo-border: #e6cf7a;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16171a;
    --fg: #e8e8e8;
    --muted: #9aa0a6;
    --border: #2c2e33;
    --accent: #6ea8fe;
    --card: #1e2024;
    --todo-bg: #3a3320;
    --todo-fg: #f0d98c;
    --todo-border: #5c5230;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

header.site {
  border-bottom: 1px solid var(--border);
}

header.site .wrap {
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
  display: flex;
  gap: 1.25rem;
  align-items: baseline;
  flex-wrap: wrap;
}

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

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

header.site .brand {
  font-weight: 600;
  color: var(--fg);
}

h1 {
  font-size: 1.9rem;
  line-height: 1.2;
  margin: 0 0 0.35rem;
}

h2 {
  font-size: 1.25rem;
  margin: 2.4rem 0 0.6rem;
  padding-top: 0.4rem;
}

h3 {
  font-size: 1.03rem;
  margin: 1.6rem 0 0.4rem;
}

p, ul, ol { margin: 0.6rem 0; }

ul, ol { padding-left: 1.4rem; }

li { margin: 0.25rem 0; }

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

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

.lead {
  color: var(--muted);
  margin-bottom: 0.25rem;
}

.updated {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

address {
  font-style: normal;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.9rem 1.1rem;
  margin: 0.8rem 0;
  white-space: pre-line;
}

/* Placeholders you replace. Delete the .todo class once filled in. */
.todo {
  background: var(--todo-bg);
  color: var(--todo-fg);
  border: 1px dashed var(--todo-border);
  border-radius: 6px;
  padding: 0.15rem 0.4rem;
  font-size: 0.92em;
}

.note {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  margin: 1rem 0;
  font-size: 0.94rem;
  color: var(--muted);
}

footer.site {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.88rem;
}

footer.site .wrap {
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: space-between;
}

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

.cards {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.card {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.1rem 1.25rem;
  text-decoration: none;
  color: var(--fg);
}

.card:hover { border-color: var(--accent); }

.card .card-title {
  font-weight: 600;
  font-size: 1.05rem;
}

.card .card-desc {
  color: var(--muted);
  font-size: 0.92rem;
  margin-top: 0.2rem;
}