body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding-top: 130px;
  padding-bottom: 80px;
  background: #f5f5f5;
}

header {
  background: #4CAF50;
  color: white;
  text-align: center;
  padding: 15px;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

#filters {
  margin-top: 10px;
}

.filter-btn {
  margin: 5px;
  padding: 8px 15px;
  background: #007BFF;
  color: white;
  border: none;
  border-radius: 20px;
  cursor: pointer;
}

.filter-btn:hover {
  background: #0056b3;
}

#combo-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin: 10px;
}

.combo-card {
  background: linear-gradient(135deg, #f6d365, #fda085);
  margin: 10px;
  padding: 15px;
  width: 250px;
  border-radius: 15px;
  box-shadow: 0 0 10px rgba(0,0,0,0.2);
  text-align: center;
  position: relative;
}

.combo-card:hover {
  transform: scale(1.05);
}

.heart {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 24px;
  cursor: pointer;
}

.heart.active {
  color: red;
}

#order-now {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: #f44336;
  color: white;
  padding: 15px 30px;
  font-size: 18px;
  border: none;
  border-radius: 30px;
  display: none;
  z-index: 1000;
}

.hidden {
  display: none;
}

footer {
  background: #eee;
  text-align: center;
  padding: 10px;
  position: fixed;
  bottom: 0;
  width: 100%;
}