body {
  background: linear-gradient(to bottom right, #fdfbfb, #ebedee);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
}

header {
  background: #fff;
  padding: 10px 20px;
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid #ddd;
}

.logo {
  font-weight: 800;
  color: #e60023;
  font-size: clamp(1.8rem, 4vw, 3.5rem);
}

.search-bar {
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

#categories {
  white-space: nowrap;
  overflow-x: auto;
  font-weight: bold;
  padding-bottom: 10px;
}

#categories>* {
  flex: 0 0 auto;
  width: 200px;
}

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-thumb {
  background: #e60023;
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: #c26775;
}

.category-btn {
  transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
  border-radius: 8px;
  padding: 10px 12px;
  background-color: rgba(230, 0, 35, 0.1);
  color: #e60023;
}

.category-btn:hover {
  background-color: #e60023;
  color: white;
  box-shadow: 0px 4px 8px rgba(0, 0, 0, 1);
  transform: translateY(-2px);
}

.card {
  border-radius: 14px;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
  transition: box-shadow 0.3s ease-in-out;
}

.card:hover {
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
}

.btn-outline-secondary,
.btn-danger,
.btn-success {
  transition: all 0.3s ease;
}

.btn-outline-secondary:hover {
  background-color: #ddd;
}

.btn-danger {
  background-color: #e60023;
  border: none;
}

.btn-danger:hover {
  background-color: #c7001a;
}

.btn-success:hover {
  background-color: #28a745;
}

.unavailable {
  pointer-events: none;
}

.unavailable img {
  opacity: 0.5;
}

.unavailable .card {
  background-color: #f0f0f0;
}

.unavailable small,
.unavailable strong {
  color: #888;
}

#receipt {
  max-height: 770px;
  overflow-y: auto;
  padding-right: 10px;
}