:root {
  --primary: #0f2a44;
  --accent: #f7931e;
  --bg: #ffffff;
  --muted: #6b7280;
}

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

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--primary);
  line-height: 1.6;
}

.site-header {
  max-width: 1200px;
  margin: auto;
  padding: 2rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  height: 150px;
}

nav a {
  margin-left: 1.5rem;
  text-decoration: none;
  color: var(--primary);
  font-weight: 500;
}

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

.hero {
  max-width: 900px;
  margin: 4rem auto;
  padding: 0 1.5rem;
  text-align: center;
}

.hero h1 {
  font-size: 2.8rem;
  font-weight: 700;
}

.hero span {
  color: var(--accent);
}

.hero p {
  margin-top: 1.2rem;
  color: var(--muted);
  font-size: 1.1rem;
}

section {
  max-width: 1000px;
  margin: 4rem auto;
  padding: 0 1.5rem;
}

section h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

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

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.card {
  background: #fafafa;
  padding: 1.8rem;
  border-radius: 14px;
  border: 1px solid #e5e7eb;
}

footer {
  border-top: 1px solid #e5e7eb;
  padding: 2.5rem 1.5rem;
}

.footer-inner {
  max-width: 1000px;
  margin: auto;
  text-align: center;
}

.social a {
  margin: 0 0.75rem;
  text-decoration: none;
  color: var(--primary);
}

.social a:hover {
  color: var(--accent);
}

@media (max-width: 640px) {
  .hero h1 {
    font-size: 2.1rem;
  }

  .logo {
    height: 68px;
  }
}