:root {
  --bg: #0f1115;
  --bg-alt: #161922;
  --text: #e8eaf0;
  --muted: #9aa0ad;
  --accent: #6ea8fe;
  --border: #262a35;
  --radius: 10px;
  --max-width: 860px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.nav {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(15, 17, 21, 0.9);
  backdrop-filter: blur(6px);
  z-index: 10;
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 700;
  color: var(--text);
}

.nav-inner nav a {
  margin-left: 20px;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav-inner nav a:hover { color: var(--text); }

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.hero {
  padding: 90px 0 70px;
  text-align: left;
}

.hero h1 {
  font-size: 2.6rem;
  margin: 0 0 12px;
}

.accent { color: var(--accent); }

.subtitle {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 560px;
}

.hero-actions {
  margin-top: 28px;
  display: flex;
  gap: 12px;
}

.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none !important;
}

.btn-primary {
  background: var(--accent);
  color: #0f1115;
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.section {
  padding: 60px 0;
  border-top: 1px solid var(--border);
}

.section h2 {
  font-size: 1.6rem;
  margin-bottom: 16px;
}

.muted { color: var(--muted); font-size: 0.9rem; }

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.project-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.project-card h3 { margin: 0 0 8px; }

.project-links {
  margin-top: 14px;
  display: flex;
  gap: 16px;
  font-size: 0.9rem;
}

code {
  background: var(--bg-alt);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}

.footer {
  text-align: center;
  padding: 30px 20px 50px;
  color: var(--muted);
  font-size: 0.85rem;
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2rem; }
  .nav-inner nav a { margin-left: 12px; }
}