* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background-color: #f4f4f4;
  color: #333;
  line-height: 1.6;
}

/* HEADER */
header {
  background-color: #2c3e50;
}

nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  padding: 15px;
}

nav a {
  color: white;
  margin: 8px 15px;
  text-decoration: none;
  font-weight: bold;
}

nav a:hover {
  text-decoration: underline;
}

/* MAIN */
main {
  max-width: 1100px;
  margin: 30px auto;
  padding: 20px;
  background: white;
}

/* SECTIONS */
.section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 30px;
}

img {
  width: 100%;
  height: auto;
  border-radius: 6px;
}

/* GALLERY */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 15px;
}

.gallery img {
  height: 180px;
  object-fit: cover;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 15px;
  background-color: #ddd;
  margin-top: 40px;
}

/* MOBILE */
@media (max-width: 768px) {
  .section {
    grid-template-columns: 1fr;
  }
}