:root {
  --bg: #0d1117;
  --fg: #e6edf3;
  --muted: #8b949e;
  --accent: #58a6ff;
  --card: #161b22;
  --border: #30363d;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
}
main { max-width: 920px; margin: 0 auto; padding: 64px 24px; }
header { margin-bottom: 56px; }
header h1 {
  margin: 0 0 8px;
  font-size: 44px;
  letter-spacing: -0.02em;
}
.muted { color: var(--muted); }
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}
.project-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
  padding: 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
  transition: border-color 120ms, transform 120ms;
}
.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.project-card.disabled {
  opacity: 0.5;
  pointer-events: none;
}
.project-card h2 {
  margin: 0;
  font-size: 19px;
  letter-spacing: -0.01em;
}
.project-card p {
  margin: 0;
  font-size: 14.5px;
  color: var(--muted);
}
.project-card .cta {
  align-self: flex-start;
  font-size: 13px;
  color: var(--accent);
  font-weight: 600;
}
.placeholder { padding: 64px 24px; max-width: 720px; margin: 0 auto; }
.placeholder h1 { font-size: 36px; margin: 0 0 16px; }
.placeholder a { color: var(--accent); }
footer { margin-top: 64px; font-size: 13px; }
footer a { color: var(--accent); text-decoration: none; }