body {
  margin: 0;
  font-family: Arial, sans-serif;
}

/* HEADER */
.header {
  background: white;
  padding: 15px 0;
  border-bottom: 1px solid #eee;
}

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

/* HERO */
.hero {
  background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)),
    url('https://images.unsplash.com/photo-1507525428034-b723cf961d3e');
  color: white;
  padding: 100px 0;
  text-align: center;
}

.search-box {
  background: white;
  padding: 15px;
  border-radius: 10px;
  margin-top: 20px;
}

.search-box input {
  padding: 10px;
  margin: 5px;
}

.search-box button {
  padding: 10px 20px;
  background: #ff5a5f;
  color: white;
  border: none;
}

/* SECTION */
.section {
  padding: 50px 0;
}

.container {
  width: 90%;
  margin: auto;
}

/* GRID */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* CARD */
.card img,
.hotel-card img {
  width: 100%;
  border-radius: 10px;
}

.hotel-card {
  background: white;
  padding: 10px;
  border-radius: 10px;
}

/* AI */
.ai-box input {
  padding: 10px;
  margin: 5px;
}

.ai-box button {
  padding: 10px 20px;
  background: #007bff;
  color: white;
  border: none;
}

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

.hero {
  height: 80vh;
  background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)),
  url('https://images.unsplash.com/photo-1507525428034-b723cf961d3e');
  background-size: cover;
  background-position: center;
}

.card img {
  height: 220px;
  object-fit: cover;
}