/* 定義亮色模式變量 */
:root {
  --bg-color: #f8f9fa;
  --card-bg: #ffffff;
  --text-color: #000000;
  --text-secondary: #6c757d;
  --text-muted: #6c757d;
  --border-color: rgba(0,0,0,.125);
  --shadow-color: rgba(0,0,0,0.1);
  --hover-shadow: rgba(0,0,0,0.15);
  --badge-bg-success: #198754;
  --badge-bg-warning: #ffc107;
  --badge-text-dark: #000;
  --badge-text-light: #fff;
  --btn-hover-bg: #e9ecef;
  --input-bg: #fff;
  --input-border: #ced4da;
  --input-focus-border: #86b7fe;
  --input-focus-shadow: rgba(13, 110, 253, 0.25);
}

/* 定義深色模式變量 */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-color: #e0e0e0;
    --text-secondary: #a0a0a0;
    --text-muted: #e0e0e0;
    --border-color: rgba(255,255,255,.125);
    --shadow-color: rgba(0,0,0,0.3);
    --hover-shadow: rgba(0,0,0,0.4);
    --badge-bg-success: #198754;
    --badge-bg-warning: #ffc107;
    --badge-text-dark: #1a1a1a;
    --badge-text-light: #e0e0e0;
    --btn-hover-bg: #2d2d2d;
    --input-bg: #2d2d2d;
    --input-border: #404040;
    --input-focus-border: #0d6efd;
    --input-focus-shadow: rgba(13, 110, 253, 0.25);
  }

  /* 深色模式下的全局背景色 */
  body {
    background-color: var(--bg-color) !important;
  }

  /* 深色模式下的標題和文字 */
  h1, h2, h3, h4, h5, h6 {
    color: var(--text-color);
  }

  /* 深色模式下的表單元素 */
  .form-control,
  .form-select {
    background-color: var(--input-bg);
    border-color: var(--input-border);
    color: var(--text-color);
  }

  .form-control:focus,
  .form-select:focus {
    background-color: var(--input-bg);
    border-color: var(--input-focus-border);
    box-shadow: 0 0 0 0.25rem var(--input-focus-shadow);
    color: var(--text-color);
  }

  /* 深色模式下的按鈕 */
  .btn-outline-secondary {
    color: var(--text-color);
    border-color: var(--input-border);
    background-color: transparent;
  }

  .btn-outline-secondary:hover {
    background-color: var(--btn-hover-bg);
    border-color: var(--input-border);
    color: var(--text-color);
  }

  .btn-success {
    background-color: var(--badge-bg-success);
    border-color: var(--badge-bg-success);
    color: var(--badge-text-light);
  }

  /* 深色模式下的徽章 */
  .badge.bg-success {
    background-color: var(--badge-bg-success) !important;
    color: var(--badge-text-light);
  }

  .badge.bg-warning {
    background-color: var(--badge-bg-warning) !important;
    color: var(--badge-text-dark);
  }

  /* 深色模式下的卡片陰影 */
  .card {
    box-shadow: 0 2px 4px var(--shadow-color);
  }

  .card:hover {
    box-shadow: 0 4px 8px var(--hover-shadow);
  }
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s ease, color 0.3s ease;
}

#inventoryList {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  padding: 1rem;
}

@media (max-width: 1400px) {
  #inventoryList {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 1200px) {
  #inventoryList {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 992px) {
  #inventoryList {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  #inventoryList {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
    padding: 0.5rem;
  }

  .card-img-top {
    height: 150px;
  }

  .card-body {
    padding: 0.75rem;
  }

  .card-title {
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
  }

  .card-body small {
    font-size: 0.75rem;
  }

  .badge {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
  }

  .price {
    font-size: 0.9rem;
  }

  .price small {
    font-size: 0.7rem;
  }
}

/* 特小螢幕的額外優化 */
@media (max-width: 375px) {
  .card-img-top {
    height: 130px;
  }

  .card-body {
    padding: 0.5rem;
  }
}

.card {
  cursor: pointer;
  border: 1px solid var(--border-color);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  background-color: var(--card-bg);
  padding: 0;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px var(--shadow-color);
}

.card-img-top {
  height: 200px;
  object-fit: cover;
  border-top-left-radius: calc(0.375rem - 1px);
  border-top-right-radius: calc(0.375rem - 1px);
}

.card-body {
  padding: 1rem;
  color: var(--text-color);
}

.card-title {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-color);
}

.card-body small {
  font-size: 0.8rem;
  line-height: 1.2;
  color: var(--text-secondary);
}

.badge {
  font-size: 0.8rem;
}

.price {
  font-size: 1.1rem;
  font-weight: bold;
  color: var(--text-color);
  text-align: right;
}

.price small {
  font-size: 0.8rem;
  font-weight: normal;
  color: var(--text-secondary);
}

/* 確保圖片在深色模式下有更好的對比度 */
@media (prefers-color-scheme: dark) {
  .card-img-top {
    opacity: 0.9;
  }
}

.text-muted {
  color: var(--text-muted) !important;
}

/* 匯率按鈕樣式 */
.exchange-rate-btn {
    padding: 0.375rem 0.75rem;
    border: 1px solid #ced4da;
    background-color: #f8f9fa;
    color: #212529;
    transition: all 0.2s ease-in-out;
}

.exchange-rate-btn:hover {
    background-color: #e9ecef;
}

.exchange-rate-btn.active {
    background-color: #0d6efd;
    color: white;
    border-color: #0d6efd;
}

.custom-rate-input {
    width: 120px;
}

/* 側滑模態框樣式 */
.product-detail-offcanvas {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 1045;
    display: flex;
    flex-direction: column;
    width: 100vw !important;
    visibility: hidden;
    background-color: var(--card-bg);
    transition: transform .3s ease-in-out;
    transform: translateX(100%);
}

.product-detail-offcanvas.show {
    visibility: visible;
    transform: translateX(0);
}

.product-detail-offcanvas-end {
    left: 0;
    right: 0;
}

.product-detail-offcanvas-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    width: 100%;
}

.product-detail-offcanvas-header .btn-back {
    background: transparent;
    border: none;
    color: white;
    font-size: 1.25rem;
    padding: 0;
    margin-right: 1rem;
}

.product-detail-offcanvas-body {
    flex-grow: 1;
    padding: 1.5rem;
    overflow-y: auto;
    width: 100%;
}

.product-detail-offcanvas-title {
    margin: 0;
    line-height: 1.42857143;
    font-size: 1.25rem;
    font-weight: 500;
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    .product-detail-offcanvas {
        background-color: var(--card-bg);
    }
    
    .product-detail-offcanvas-header {
        border-bottom-color: var(--border-color);
    }
}