:root {
  --primary: #0284c7;
  --primary-dark: #0369a1;
  --accent: #f59e0b;
  --dark: #0f172a;
  --light: #f8fafc;
  --gray: #64748b;
  --border: #e2e8f0;
}

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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  color: var(--dark);
  background-color: var(--light);
  line-height: 1.6;
}

header {
  background: white;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.top-bar {
  background: var(--dark);
  color: white;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.top-bar a {
  color: var(--accent);
  text-decoration: none;
  font-weight: bold;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--dark);
  font-weight: 600;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--primary);
}

.btn-cta {
  background-color: var(--accent);
  color: #000;
  padding: 0.75rem 1.25rem;
  border-radius: 6px;
  font-weight: 700;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
  transition: background-color 0.2s, transform 0.1s;
}

.btn-cta:hover {
  background-color: #d97706;
  transform: translateY(-1px);
}

.hero {
  background: linear-gradient(rgba(15,23,42,0.8), rgba(15,23,42,0.8)), url('https://images.unsplash.com/photo-1542013936693-84d49d4c55ac?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
  color: white;
  padding: 5rem 1rem;
  text-align: center;
}

.hero h1 {
  font-size: 2.75rem;
  margin-bottom: 1rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  color: #cbd5e1;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 1rem;
}

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

.card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.card h3 {
  margin-bottom: 1rem;
  color: var(--primary-dark);
}

footer {
  background: var(--dark);
  color: white;
  padding: 3rem 1rem;
  margin-top: 4rem;
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  border-top: 1px solid #334155;
  padding-top: 1.5rem;
  text-align: center;
  color: #94a3b8;
  font-size: 0.9rem;
}

@media(max-width: 768px) {
  .nav-links {
    display: none;
  }
}