/* ---------- Global ---------- */

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: #111;
  background: #ffffff;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

/* ---------- Layout ---------- */

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------- Navigation ---------- */

header {
  border-bottom: 1px solid #ddd;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav .logo {
  font-weight: 600;
  font-size: 1.1rem;
}

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

.nav li a {
  font-size: 0.95rem;
  color: #333;
}

/* ---------- Page ---------- */

main {
  margin: 4rem 0;
}

.page-title {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

section {
  margin-top: 3rem;
}

/* ---------- Hero Image ---------- */

.hero {
  margin: 2rem 0 3rem 0;
}

.hero img {
  border-radius: 4px;
}

/* ---------- Footer ---------- */

footer {
  border-top: 1px solid #ddd;
  margin-top: 5rem;
  padding: 2rem 0;
  font-size: 0.9rem;
  color: #555;
}