:root {
  --bg: #0f1419;
  --card: #1a2332;
  --text: #e7ecf3;
  --accent: #3b82f6;
  --muted: #94a3b8;
}

* { box-sizing: border-box; }
body {
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  line-height: 1.5;
}
header {
  padding: 1rem 2rem;
  border-bottom: 1px solid #2d3a4f;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}
header h1 { margin: 0; font-size: 1.25rem; }
header .meta { color: var(--muted); font-size: 0.9rem; }
nav a, .link-btn {
  color: var(--accent);
  margin-left: 1rem;
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  font-size: inherit;
}
main { max-width: 900px; margin: 2rem auto; padding: 0 1.5rem; }
.card, .project-card {
  background: var(--card);
  border-radius: 8px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}
label { display: block; margin-bottom: 0.75rem; }
input, textarea, select {
  width: 100%;
  padding: 0.5rem;
  margin-top: 0.25rem;
  border-radius: 4px;
  border: 1px solid #334155;
  background: #0f172a;
  color: var(--text);
}
button, .btn {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
button:disabled { opacity: 0.6; cursor: not-allowed; }
.error { color: #f87171; margin-top: 0.5rem; }
.muted { color: var(--muted); font-size: 0.9rem; }
.projects { list-style: none; padding: 0; }
.project-card h2 { margin: 0 0 0.5rem; font-size: 1.1rem; }
.project-card dl { margin: 0; display: grid; grid-template-columns: 8rem 1fr; gap: 0.25rem 1rem; }
.project-card dt { color: var(--muted); }
.feature-tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.75rem; }
.feature-tag {
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 4px;
  padding: 0.15rem 0.5rem;
  font-size: 0.8rem;
}
.hidden { display: none; }