/* ===== CSS Variables ===== */
:root {
  /* Colors */
  --primary-color: #2ecc71;
  --primary-hover: white;
  --danger-color: #e74c3c;
  --text-color: #333;
  --light-text: #777;
  --light-gray: #f9f9f9;
  --medium-gray: #e0e0e0;
  --dark-gray: #444;
  --white: #fff;
  --black: #000;
  
  /* Spacing */
  --space-xs: 5px;
  --space-sm: 10px;
  --space-md: 15px;
  --space-lg: 20px;
  --space-xl: 30px;
  --space-xxl: 50px;
  
  /* Typography */
  --text-sm: 14px;
  --text-base: 16px;
  --text-lg: 18px;
  --text-xl: 24px;
  --text-xxl: 32px;
  
  /* Borders */
  --border-radius: 4px;
  --border-radius-lg: 10px;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 8px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 16px rgba(0,0,0,0.1);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Z-index */
  --z-dropdown: 100;
  --z-modal: 1000;
}

/* ===== Base Styles ===== */
.product-catalog-container {
  max-width: 1200px;
  margin: var(--space-xxl) auto var(--space-sm);
  padding: var(--space-lg);
}

.product-catalog-container h5 {
  color: var(--primary-color);
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
  font-size: var(--text-lg);
  text-align: center;
}

.product-catalog-container h2 {
  color: var(--text-color);
  margin-bottom: var(--space-xl);
  font-size: var(--text-xxl);
  text-align: center;
}

/* ===== Button Styles ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md) var(--space-lg);
  border: none;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-transform: uppercase;
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--white);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-secondary {
  background-color: var(--primary-color);
  color: var(--white);
}

.btn-secondary:hover {
  background-color: var(--primary-hover);
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
}

/* ===== Tab System ===== */
.tabs {
  display: none;
  flex-wrap: wrap;
  gap: var(--space-xl);
  justify-content: center;
  margin-bottom: var(--space-xl);
}

.tab-button {
  padding: var(--space-sm) var(--space-lg);
  background-color: var(--primary-color);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 600;
  transition: all var(--transition-normal);
}

.tab-button:hover {
  background-color: var(--medium-gray);
}

.tab-button.active {
  background-color: var(--light-gray);
  color: var(--black);
  border: none;
}

/* Mobile Dropdown */
.mobile-dropdown {
  display: block;
  width: 100%;
  margin-bottom: var(--space-xl);
  position: relative;
}

.dropdown-btn {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  background-color: var(--primary-color);
  color: var(--white);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 600;
  font-size: var(--text-base);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.dropdown-content {
  display: none;
  position: absolute;
  background-color: var(--white);
  width: 100%;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  z-index: var(--z-dropdown);
  margin-top: var(--space-xs);
  max-height: 300px;
  overflow-y: auto;
}

.dropdown-content.show {
  display: block;
}

.dropdown-content button {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  text-align: left;
  background-color: transparent;
  border: none;
  border-bottom: 1px solid var(--medium-gray);
  cursor: pointer;
  transition: background-color var(--transition-normal);
}

.dropdown-content button:last-child {
  border-bottom: none;
}

.dropdown-content button:hover {
  background-color: var(--light-gray);
}

.dropdown-content button.active {
  background-color: #ffeaea;
  color: var(--primary-color);
  font-weight: 600;
}

/* Tab Content */
.tab-content {
  display: none;
  animation: fadeIn var(--transition-slow);
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ===== Table Styles ===== */
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-lg) 0;
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

th, td {
  padding: var(--space-md);
  text-align: left;
  position: relative;
}

th {
  background-color: var(--primary-color);
  color: var(--white);
  font-weight: 600;
  position: sticky;
  top: 0;
}

tr:nth-child(even) {
  background-color: var(--light-gray);
}

tr:hover {
  background-color: var(--medium-gray);
}

/* Quantity Controls */
.quantity-controls {
  display: none;
  align-items: center;
  gap: var(--space-xs);
  position: absolute;
  right: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
}

.quantity-btn {
  width: 25px;
  height: 25px;
  min-width: 25px;
  background: var(--primary-color);
  color: var(--white);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: bold;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.quantity-btn.minus {
  background: var(--danger-color);
}

.quantity-input {
  width: 40px;
  text-align: center;
  padding: var(--space-xs);
  border: 1px solid var(--medium-gray);
  border-radius: var(--border-radius);
}

/* Checkbox */
.product-checkbox {
  margin-right: var(--space-sm);
  width: 20px;
  height: 20px;
  cursor: pointer;
}

/* Order Button */
.order-btn {
  display: block;
  width: 200px;
  margin: 30px auto;
  padding: 12px 20px;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s;
}

.order-btn:hover {
  background-color: var(--danger-color);
}

/* ===== Modal Styles ===== */
.modal {
  display: none;
  position: fixed;
  z-index: var(--z-modal);
  left: 0;
  margin-top: 50px;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0,0,0,0.4);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-lg);
}

.modal-content {
  background-color: var(--white);
  margin: 5% auto;
  padding: var(--space-lg);
  width: 90%;
  max-width: 800px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  max-height: 90vh;
  overflow-y: auto;
}

.close {
  color: var(--light-text);
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  transition: color var(--transition-fast);
  margin-left: auto;
  padding-left: var(--space-sm);
}

.close:hover {
  color: var(--text-color);
}

/* Form Styles */
.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.form-group {
  flex: 1;
  min-width: 200px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--space-sm);
  border: 1px solid var(--medium-gray);
  border-radius: var(--border-radius);
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(46, 204, 113, 0.2);
}

input[type=number]::-webkit-outer-spin-button,
input[type=number]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type=number] {
  -moz-appearance: textfield;
}

input[type="checkbox"] {
  accent-color: var(--primary-color);
}

textarea {
  resize: none;
}

/* ===== Order Summary Styles ===== */
.order-summary-container {
  margin: var(--space-xl) 0;
}

.order-summary-title {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-lg);
  color: var(--text-color);
  text-align: center;
}

.order-summary {
  width: 100%;
  margin: 0 auto;
  border-collapse: collapse;
  font-size: var(--text-base);
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.order-summary thead {
  background-color: var(--primary-color);
  color: var(--white);
}

.order-summary th {
  padding: var(--space-md);
  text-align: left;
  font-weight: 600;
}

.order-summary td {
  padding: var(--space-md);
  border-bottom: 1px solid var(--medium-gray);
  vertical-align: middle;
}

.order-summary tr:last-child td {
  border-bottom: none;
}

.order-summary .product-name {
  font-weight: 500;
}

.order-summary .product-price,
.order-summary .product-total {
  text-align: right;
}

.order-summary .product-quantity {
  text-align: center;
}

.total-row {
  font-weight: bold;
  background-color: var(--light-gray);
}

.total-row td {
  padding-top: var(--space-lg);
  padding-bottom: var(--space-lg);
}

.confirm-order-btn {
  display: block;
  width: 100%;
  max-width: 300px;
  padding: var(--space-md);
  margin: var(--space-xl) auto 0;
  background-color: var(--primary-color);
  color: var(--white);
  border: none;
  border-radius: var(--border-radius);
  font-size: var(--text-lg);
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--transition-normal);
  text-align: center;
  text-decoration: none;
}

.confirm-order-btn:hover {
  background-color: var(--primary-hover);
}

/* Info Section */
.info-section {
  padding: var(--space-xxl) var(--space-lg);
  text-align: center;
  background-color: var(--light-gray);
}

.info-icon {
  width: 60px;
  height: 60px;
  background-color: var(--secondary-color);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 auto var(--space-xl);
}

.info-icon i {
  font-weight: bolder;
  color: white;
}

.info-text {
  margin-bottom: var(--space-md);
  font-size: var(--text-base);
  color: var(--dark-gray);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== Responsive Styles ===== */
@media (min-width: 768px) {
  .mobile-dropdown {
    display: none;
  }
  
  .tabs {
    display: flex;
  }
  
  .modal-content {
    width: 80%;
    padding: var(--space-xl);
  }
}

@media (max-width: 767px) {
  /* Responsive table */
  table {
    border: 0;
  }

  table thead {
    display: none;
  }

  table tr {
    margin-bottom: var(--space-md);
    display: block;
    border: 1px solid var(--medium-gray);
    border-radius: var(--border-radius);
  }

  table td {
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: right;
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--medium-gray);
  }

  table td::before {
    content: attr(data-label);
    font-weight: 600;
    margin-right: auto;
    padding-right: var(--space-md);
    text-align: left;
  }
  
  /* Quantity controls for mobile */
  .quantity-controls {
    position: static;
    transform: none;
    margin-top: var(--space-xs);
  }

  /* Order Summary Mobile Styles */
  .order-summary {
    display: table;
    width: 100%;
  }

  .order-summary thead {
    display: table-header-group;
  }

  .order-summary tbody {
    display: table-row-group;
  }

  .order-summary tr {
    display: table-row;
    border-bottom: 1px solid var(--medium-gray);
  }

  .order-summary th,
  .order-summary td {
    display: table-cell;
    padding: var(--space-sm) var(--space-md);
    text-align: left;
    border: none;
  }

  .order-summary td::before {
    content: none;
  }

  .order-summary .product-price,
  .order-summary .product-total {
    text-align: right;
  }

  .order-summary .product-quantity {
    text-align: center;
  }

  /* Make table scroll horizontally if needed */
  .order-summary-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Print styles */
@media print {
  .no-print {
    display: none !important;
  }
  
  .modal-content {
    width: 100%;
    max-width: 100%;
    margin: 0;
    padding: 0;
    box-shadow: none;
    border-radius: 0;
  }
  
  .order-summary {
    page-break-inside: avoid;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  :root {
    --text-color: #eee;
    --light-text: #aaa;
    --light-gray: #222;
    --medium-gray: #333;
    --dark-gray: #ddd;
    --white: #111;
  }
  
  .tab-button {
    background-color: var(--medium-gray);
    color: var(--text-color);
  }
  
  .tab-button:hover {
    background-color: #444;
  }
  
  .dropdown-content {
    background-color: var(--medium-gray);
    border: 1px solid #444;
  }
  
  .dropdown-content button {
    color: var(--text-color);
    border-bottom-color: #444;
  }
  
  .dropdown-content button:hover {
    background-color: #333;
  }
  
  table {
    background-color: var(--medium-gray);
    color: var(--text-color);
  }
  
  tr:nth-child(even) {
    background-color: #2a2a2a;
  }
  
  .quantity-input {
    background-color: #333;
    color: var(--text-color);
    border-color: #555;
  }

  .order-summary {
    background-color: var(--medium-gray);
    color: var(--text-color);
  }

  .order-summary thead {
    background-color: var(--secondary-color);
  }

  .total-row {
    background-color: #2a2a2a;
  }
}