:root {
  --bg: #fdfcfb;
  --fg: #211d1a;
  --muted: #6b625a;
  --card: #ffffff;
  --border: #e7e1da;
  --accent: #b5541f;
  --accent-fg: #ffffff;
  --warn-bg: #fff3e0;
  --warn-border: #e0a340;
  --checked: #8a9a7e;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171512;
    --fg: #f1ece5;
    --muted: #b3a99e;
    --card: #211d1a;
    --border: #35302a;
    --accent: #e08a4f;
    --accent-fg: #171512;
    --warn-bg: #3a2a12;
    --warn-border: #b5772a;
    --checked: #a8bb9b;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.site-header .brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--fg);
  text-decoration: none;
}

.site-header nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  font-size: 0.9rem;
}

.site-header nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 4px 0;
}

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

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

h1 { font-size: 1.5rem; margin: 8px 0 16px; }
h2 { font-size: 1.15rem; margin: 0 0 10px; }
h3 { font-size: 1rem; margin: 14px 0 6px; }

p { margin: 0 0 12px; }

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

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
}

.card.warning {
  background: var(--warn-bg);
  border-color: var(--warn-border);
}

.button {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-fg);
  padding: 10px 16px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
}

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

.link-list li { padding: 6px 0; border-bottom: 1px solid var(--border); }
.link-list li:last-child { border-bottom: none; }

ul.checklist {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
}

ul.checklist li {
  border-bottom: 1px solid var(--border);
}

ul.checklist li:last-child { border-bottom: none; }

ul.checklist label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 4px;
  cursor: pointer;
}

ul.checklist input[type="checkbox"] {
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 1px;
}

ul.checklist input[type="checkbox"]:checked + span {
  text-decoration: line-through;
  color: var(--checked);
}

.table-wrap {
  overflow-x: auto;
  margin-bottom: 16px;
  -webkit-overflow-scrolling: touch;
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.9rem;
}

th, td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
  white-space: nowrap;
}

th { background: rgba(181, 84, 31, 0.08); }

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 20px 0;
}

.site-footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
  padding: 24px 16px 40px;
}