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

:root {
  --text: #1a1a2e;
  --text-muted: #555;
  --bg: #fafafa;
  --surface: #fff;
  --accent: #2d5a8e;
  --border: #e0e0e0;
  --radius: 8px;
}

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

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

header {
  padding: 3rem 0 2rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.logo { font-size: 2rem; font-weight: 700; letter-spacing: -0.02em; }
.tagline { color: var(--text-muted); font-size: 1.15rem; margin-top: 0.25rem; }

main section { padding: 3rem 0; }
main section + section { border-top: 1px solid var(--border); }

h2 { font-size: 1.4rem; margin-bottom: 1rem; }

.hero p { font-size: 1.1rem; color: var(--text-muted); max-width: 600px; }

.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.app-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.app-card h3 { font-size: 1.05rem; margin-bottom: 0.35rem; }
.app-card p { font-size: 0.9rem; color: var(--text-muted); }

.about p, .contact p { color: var(--text-muted); max-width: 600px; }

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

footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

footer nav { margin-bottom: 0.75rem; }
footer nav a { margin: 0 1rem; }

@media (max-width: 600px) {
  header { padding: 2rem 0 1.5rem; }
  .logo { font-size: 1.5rem; }
  main section { padding: 2rem 0; }
}