:root {
  --bg: #0f1419;
  --surface: #1a1f29;
  --border: #2a3140;
  --text: #e6e8eb;
  --text-dim: #8a93a3;
  --accent: #4a9eff;
  --accent-dim: #2a5e9e;
  --code-bg: #0a0d12;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: -0.5px;
}

.logo span { color: var(--text); font-weight: 400; }

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--accent); }

main {
  flex: 1;
  padding: 3rem 0;
}

h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -1px;
}

h2 {
  font-size: 1.5rem;
  margin: 2.5rem 0 1rem;
  color: var(--accent);
  font-weight: 600;
}

h3 {
  font-size: 1.15rem;
  margin: 1.5rem 0 0.75rem;
  font-weight: 600;
}

p {
  margin-bottom: 1rem;
  color: var(--text);
}

.lead {
  font-size: 1.15rem;
  color: var(--text-dim);
  margin-bottom: 2rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin: 2rem 0;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  transition: border-color 0.2s, transform 0.2s;
}

.card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-2px);
}

.card h3 { margin-top: 0; color: var(--accent); }

.card p {
  color: var(--text-dim);
  font-size: 0.95rem;
}

code {
  font-family: "SF Mono", Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.9em;
  background: var(--code-bg);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  color: var(--accent);
}

pre {
  background: var(--code-bg);
  padding: 1rem 1.25rem;
  border-radius: 6px;
  overflow-x: auto;
  margin: 1.25rem 0;
  border-left: 3px solid var(--accent);
}

pre code {
  background: transparent;
  padding: 0;
  color: var(--text);
}

ul { margin: 0 0 1rem 1.5rem; }
ul li { margin-bottom: 0.5rem; color: var(--text); }

a { color: var(--accent); }
a:hover { text-decoration: underline; }

footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  color: var(--text-dim);
  font-size: 0.9rem;
  text-align: center;
}

footer a { color: var(--text-dim); }

.status {
  display: inline-block;
  padding: 0.2em 0.6em;
  border-radius: 4px;
  font-size: 0.8em;
  font-weight: 500;
  background: rgba(74, 158, 255, 0.15);
  color: var(--accent);
  margin-left: 0.5em;
}

.status.wip { background: rgba(255, 180, 50, 0.15); color: #ffb432; }

.error-page {
  text-align: center;
  padding: 4rem 1rem;
}

.error-page h1 {
  font-size: 6rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

@media (max-width: 600px) {
  h1 { font-size: 1.7rem; }
  .nav-links { gap: 1rem; font-size: 0.9rem; }
  main { padding: 2rem 0; }
}