body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f4f6f8;
  color: #333;
}

/* HERO */
.hero {
  background: linear-gradient(135deg, #2c3e50, #4ca1af);
  color: white;
  text-align: center;
  padding: 80px 20px;
}

.hero h1 {
  font-size: 40px;
  margin-bottom: 10px;
}

.hero p {
  font-size: 18px;
  margin-bottom: 20px;
}

.btn {
  background: white;
  color: #2c3e50;
  padding: 10px 20px;
  border-radius: 25px;
  text-decoration: none;
  font-weight: bold;
}

/* CARDS */
.card {
  background: white;
  margin: 20px auto;
  padding: 25px;
  max-width: 900px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
}

/* GRID TIPS */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
  margin-top: 15px;
}

.box {
  background: #f0f0f0;
  padding: 12px;
  border-radius: 8px;
  text-align: center;
}

/* GALLERY */
.gallery {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.gallery img {
  width: 250px;
  border-radius: 10px;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 20px;
  background: #2c3e50;
  color: white;
  margin-top: 30px;
}