body {
  font-family: "Inter", sans-serif;
  background: #f8f9fa;
  color: #0f172a;
}
h1,
h2,
h3 {
  font-family: "Poppins", sans-serif;
  font-weight: 700;
}
.reservation-container {
  max-width: 950px;
  margin: 60px auto;
  padding: 40px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s;
}
.reservation-container:hover {
  transform: translateY(-5px);
}
.form-control,
.form-select {
  border-radius: 12px;
  padding: 12px 15px;
  font-size: 1rem;
  transition: box-shadow 0.3s;
}
.form-control:focus,
.form-select:focus {
  box-shadow: 0 0 10px rgba(0, 123, 255, 0.3);
}
.btn-submit {
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  background: #007bff;
  color: #fff;
  border-radius: 12px;
  padding: 14px 30px;
  font-size: 1.1rem;
  transition: 0.3s;
}
.btn-submit:hover {
  background: #0056b3;
  color: #fff;
}
.success-message {
  display: none;
  margin-top: 20px;
  padding: 15px;
  border-radius: 12px;
  background: #d1fae5;
  color: #065f46;
  font-weight: 600;
  text-align: center;
}
.price-box {
  margin-top: 5px;
  font-weight: 600;
  color: #007bff;
  padding: 10px 15px;
  border: 1px solid #007bff;
  border-radius: 12px;
  text-align: center;
  transition: background 0.3s, color 0.3s;
}
.price-box.active {
  background: #007bff;
  color: #fff;
}
@media (max-width: 768px) {
  .reservation-container {
    padding: 25px;
    margin: 30px 15px;
  }
}

/* Custom apartment select */
.custom-select-wrapper {
  position: relative;
  cursor: pointer;
  user-select: none;
}

.custom-select-display {
  border: 1px solid #ced4da;
  border-radius: 12px;
  padding: 12px 15px;
  font-size: 1rem;
  background: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.custom-select-display:hover {
  box-shadow: 0 0 10px rgba(0, 123, 255, 0.3);
}

.custom-select-popup {
  display: none;
  position: absolute;
  top: 110%;
  left: 0;
  width: 100%;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  padding: 15px;
  z-index: 100;
}

.apartment-card {
  border: 1px solid #ddd;
  border-radius: 12px;
  padding: 15px;
  margin-bottom: 10px;
  transition: 0.3s;
}

.apartment-card:hover {
  background-color: #f0f8ff;
  border-color: #007bff;
}

.apartment-card h5 {
  font-weight: 700;
  margin-bottom: 5px;
}

.apartment-card p {
  font-weight: 600;
  color: #007bff;
  margin: 0;
}