/* Basic reset */
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: Arial, sans-serif; line-height: 1.5; }
.container { width: min(1100px, 92%); margin: 0 auto; }

/* Nav */
header { border-bottom: 1px solid #ddd; }
.nav { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; }
.nav a { text-decoration: none; color: inherit; margin-left: 12px; }
.brand { font-weight: 700; }

/* Hero */
.hero { padding: 56px 0; }
.hero h1 { font-size: 40px; margin-bottom: 10px; }
.hero p { max-width: 60ch; margin-bottom: 18px; }
.btns a { display: inline-block; padding: 10px 14px; border: 1px solid #111; margin-right: 10px; }

/* Sections */
section { padding: 28px 0; }
.card { border: 1px solid #ddd; border-radius: 10px; padding: 16px; }

/* Footer */
footer { border-top: 1px solid #ddd; padding: 18px 0; margin-top: 30px; font-size: 14px; }

/* Mobile */
@media (max-width: 700px) {
  .nav { flex-direction: column; align-items: flex-start; gap: 10px; }
  .hero h1 { font-size: 30px; }
}