:root {
  --primary: #0b5ed7;
  --secondary: #f8f9fa;
  --dark: #212529;
  --gray: #6c757d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--dark);
  line-height: 1.6;
}

a {
  color: var(--primary);
  text-decoration: none;
}

header {
  background: white;
  border-bottom: 1px solid #eee;
}

.nav {
  max-width: 1100px;
  margin: auto;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav a.logo {
  font-weight: 700;
  font-size: 1.2rem;
}

.nav ul {
  list-style: none;
  display: flex;
  gap: 1rem;
  margin: 0;
  padding: 0;
}

.nav ul li a {
  color: var(--dark);
  font-weight: 500;
}

.hero {
  background: linear-gradient(rgba(0,0,0,.55), rgba(0,0,0,.55)),
              url("../images/hero-moving.jpg") center/cover no-repeat;
  color: white;
  padding: 4rem 1rem;
  text-align: center;
}

.container {
  max-width: 1100px;
  margin: auto;
  padding: 3rem 1rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.card {
  border: 1px solid #eee;
  border-radius: 6px;
  padding: 1.5rem;
  background: white;
}

.card h3 {
  margin-top: 0;
}

.section-alt {
  background: var(--secondary);
}

footer {
  background: var(--dark);
  color: white;
  padding: 2rem 1rem;
}

footer a {
  color: #ddd;
}

footer .container {
  display: grid;
  gap: 1rem;
  text-align: center;
}

@media (max-width: 768px) {
  .nav ul {
    flex-wrap: wrap;
    justify-content: center;
  }
}