:root {
  --bg-dark: #0f0f0f;
  --bg-panel: #1a1a1a;
  --accent-yellow: #ffd700;
  --text-main: #e0e0e0;
  --text-muted: #aaa;
}

body {
  background: var(--bg-dark);
  color: var(--text-main);
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}

header {
  padding: 1rem 0;
  border-bottom: 1px solid #333;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 1rem;
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 1.5rem;
  justify-content: center;
}

nav a {
  color: var(--text-main);
  text-decoration: none;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

h1, h2 {
  color: var(--accent-yellow);
  text-align: center;
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.4);
}

.hero {
  text-align: center;
  padding: 4rem 1rem;
  background: radial-gradient(circle at center, #222 0%, #000 100%);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.card {
  background: var(--bg-panel);
  padding: 1.5rem;
  border: 1px solid #333;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5);
}

.timeline-item {
  border-left: 3px solid var(--accent-yellow);
  margin-left: 20px;
  padding-left: 15px;
  margin-bottom: 1.2rem;
}

footer {
  margin-top: 3rem;
  padding: 2rem 0;
  text-align: center;
  border-top: 1px solid #333;
  color: var(--text-muted);
  font-size: 0.9rem;
}