body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #ffffff;
  color: #222;
}

/* HEADER */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 40px;
  background: #ffffff;
  border-bottom: 1px solid #eee;
  position: sticky;
  top: 0;
  z-index: 10;
}

header nav a {
  margin: 0 12px;
  text-decoration: none;
  color: #333;
  font-weight: 500;
}

header nav a:hover {
  color: #009688;
}

/* HERO */
.hero {
  width: 100%;
  aspect-ratio: 21/9;
  background-image: url("../img/patio-panoramico.jpg");
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-text {
  background: rgba(0,0,0,0.45);
  padding: 25px 40px;
  border-radius: 10px;
  color: white;
  text-align: center;
}

.btn {
  background: #00bfa5;
  color: white;
  padding: 12px 22px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 18px;
}

/* SECCIONES */
.section {
  padding: 60px 40px;
  max-width: 1100px;
  margin: auto;
}

.section h2 {
  font-size: 32px;
  margin-bottom: 20px;
  color: #009688;
}

/* GALERÍA */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.gallery img {
  width: 100%;
  border-radius: 8px;
  object-fit: cover;
}

/* FOOTER */
footer {
  background: #f5f5f5;
  padding: 40px;
  text-align: center;
  margin-top: 40px;
}