:root {
  --primary-navy: #0a192f;
  --accent-gold: #d4af37;
  --text-main: #333333;
  --bg-light: #f8f9fa;
  --border-subtle: #e0e0e0;
}

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

header {
  background-color: var(--primary-navy);
  color: white;
  padding: 2rem 5%;
  border-bottom: 4px solid var(--accent-gold);
}

nav ul {
  list-style: none;
  padding: 0;
  display: flex;
  gap: 2rem;
  margin: 0;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 0.9rem;
}

.hero {
  padding: 6rem 5%;
  text-align: center;
  background-color: var(--bg-light);
  border-bottom: 1px solid var(--border-subtle);
}

.hero h1 {
  font-size: 3rem;
  color: var(--primary-navy);
  margin-bottom: 1rem;
  font-weight: 300;
  letter-spacing: -0.02em;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 5%;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.card {
  border: 1px solid var(--border-subtle);
  padding: 2rem;
  background: white;
  transition: box-shadow 0.3s ease;
}

.card:hover {
  box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

.btn-institutional {
  display: inline-block;
  background-color: var(--primary-navy);
  color: white;
  padding: 1rem 2rem;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 0.9rem;
  border: 2px solid var(--primary-navy);
  transition: all 0.3s ease;
}

.btn-institutional:hover {
  background-color: transparent;
  color: var(--primary-navy);
}

footer {
  background-color: var(--primary-navy);
  color: rgba(255,255,255,0.7);
  padding: 3rem 5%;
  text-align: center;
  font-size: 0.85rem;
  margin-top: 4rem;
}