:root {
  --bg: #f6f8f7;
  --text: #1a2420;
  --muted: #5d6c66;
  --card: #ffffff;
  --border: #d6dfdb;
  --accent: #1b6b5a;
  --accent-text: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1613;
    --text: #e5eeea;
    --muted: #92a59c;
    --card: #17211d;
    --border: #2a3a34;
    --accent: #4fd1b0;
    --accent-text: #0f1613;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Georgia, serif;
  line-height: 1.6;
}
a { color: var(--accent); }
header, main, footer { max-width: 860px; margin: 0 auto; padding: 0 16px; }
header {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  align-items: center;
  padding-top: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  font-family: sans-serif;
}
.logo { font-weight: bold; font-size: 20px; text-decoration: none; letter-spacing: 1px; }
nav { display: flex; flex-wrap: wrap; gap: 16px; font-size: 15px; }
nav a { text-decoration: none; color: var(--muted); }
nav a:hover, nav a.here { color: var(--accent); }
.hero { padding: 40px 0 24px; }
.hero h1 { font-size: 2.2rem; line-height: 1.2; margin: 0 0 12px; }
.hero p { color: var(--muted); font-size: 1.1rem; max-width: 60ch; }
.btn {
  display: inline-block;
  padding: 9px 18px;
  margin: 6px 8px 0 0;
  border-radius: 6px;
  border: 1px solid var(--accent);
  text-decoration: none;
  font-family: sans-serif;
  font-size: 15px;
}
.btn.main { background: var(--accent); color: var(--accent-text); }
section { margin: 36px 0; }
h2 { font-size: 1.4rem; margin-bottom: 8px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  margin: 10px 0;
}
.card h3 { margin: 0 0 4px; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); }
.tag {
  display: inline-block;
  font-family: sans-serif;
  font-size: 12px;
  padding: 1px 8px;
  border-radius: 10px;
  border: 1px solid var(--border);
  color: var(--muted);
  margin-left: 6px;
  vertical-align: middle;
}
.tag.ready { color: var(--accent); border-color: var(--accent); }
.grid { display: grid; gap: 10px; }
@media (min-width: 640px) { .grid.two { grid-template-columns: 1fr 1fr; } }
footer {
  padding-top: 20px;
  padding-bottom: 32px;
  margin-top: 40px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-family: sans-serif;
  font-size: 14px;
}