:root {
  --bg: #f7f6f2;
  --card: #ffffff;
  --text: #1f2a23;
  --muted: #6b7268;
  --border: #e0ddd4;
  --accent: #2f6b3f;
  --easy: #2f7d4f;
  --medium: #b07818;
  --hard: #b3402e;
  --warn-bg: #fdf3e4;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171a17;
    --card: #21261f;
    --text: #e8e6dd;
    --muted: #9aa295;
    --border: #363c33;
    --accent: #7fbf8e;
    --easy: #7fbf8e;
    --medium: #d9a94e;
    --hard: #e07b63;
    --warn-bg: #2e2a1c;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0 auto;
  max-width: 720px;
  padding: 1.25rem 1rem 3rem;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
  background: var(--bg);
  color: var(--text);
}

header h1 { margin: 0.5rem 0 0.25rem; font-size: 1.7rem; }
.tagline { margin-top: 0; color: var(--muted); }

h2 { margin: 2rem 0 0.25rem; font-size: 1.25rem; }
.muted { color: var(--muted); font-size: 0.9rem; margin-top: 0.25rem; }

.cards { display: grid; gap: 0.9rem; margin-top: 1rem; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.9rem 1rem;
}

.card.done { opacity: 0.55; }
.card h3 { margin: 0 0 0.3rem; font-size: 1.05rem; }

.badges { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0.4rem 0; }

.badge {
  font-size: 0.75rem;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
}

.badge.easy   { color: var(--easy);   border-color: var(--easy); }
.badge.medium { color: var(--medium); border-color: var(--medium); }
.badge.hard   { color: var(--hard);   border-color: var(--hard); }
.badge.unverified { color: var(--hard); border-style: dashed; }

.bus { font-size: 0.9rem; margin: 0.35rem 0; }

.warning {
  background: var(--warn-bg);
  border-radius: 6px;
  padding: 0.35rem 0.6rem;
  font-size: 0.85rem;
  margin: 0.4rem 0;
}

.links { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 0.5rem 0 0.25rem; font-size: 0.9rem; }
.links a { color: var(--accent); }

button, .import-label {
  font: inherit;
  font-size: 0.85rem;
  padding: 0.35rem 0.8rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
}

button:hover, .import-label:hover { border-color: var(--accent); }

.card button.done-btn { margin-top: 0.4rem; }

.import-label { display: inline-block; margin-left: 0.5rem; }
.import-label input { display: none; }

.massif-group h3 { margin: 1.2rem 0 0.4rem; font-size: 1rem; color: var(--muted); }

.catalog-row {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

.catalog-row .name { flex: 1; }
.catalog-row.done .name { text-decoration: line-through; color: var(--muted); }
.catalog-row .meta { color: var(--muted); font-size: 0.8rem; white-space: nowrap; }

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

.empty { padding: 1rem; border: 1px dashed var(--border); border-radius: 10px; color: var(--muted); }