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

:root {
  --bg: #0a0a0a;
  --bg-elevated: #141414;
  --text: #fafafa;
  --text-muted: #888;
  --accent: #3b82f6;
  --border: #222;
}

html {
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

/* Header */
header {
  margin-bottom: 6rem;
}

.logo {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* Main Content */
main {
  display: flex;
  flex-direction: column;
  gap: 5rem;
}

/* Hero */
.hero h1 {
  font-size: 2.5rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.tagline {
  font-size: 1.125rem;
  color: var(--text-muted);
}

/* Sections */
section h2 {
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

section p {
  color: var(--text-muted);
}

/* Projects */
.project-grid {
  display: grid;
  gap: 1rem;
}

.project-card {
  display: block;
  padding: 1.5rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, transform 0.2s;
}

.project-card:hover {
  border-color: #333;
  transform: translateY(-2px);
}

.project-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.project-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.project-card p {
  font-size: 0.9375rem;
  margin-bottom: 1rem;
}

.project-status {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  background: rgba(59, 130, 246, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
}

/* About */
.about p {
  max-width: 540px;
}

/* Contact */
.contact a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition: border-color 0.2s;
}

.contact a:hover {
  border-color: var(--text);
}

/* Footer */
footer {
  margin-top: 6rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

footer p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 640px) {
  .container {
    padding: 2rem 1rem;
  }

  header {
    margin-bottom: 4rem;
  }

  main {
    gap: 3rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  footer {
    margin-top: 4rem;
  }
}