/* public/css/layout/sidebar.css */

/* 會員中心側邊欄容器 */
.user-sidebar {
  width: 33.333%;
  min-width: 280px;
}

/* 商品分類側邊欄容器 (sticky 定位) */
.shop-sidebar {
  position: sticky;
  top: 100px;
  padding: 1.5rem;
}

/* 導航容器 */
.sidebar-nav {
  padding: 40px 30px;
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
}

/* 標題 */
.nav-topic {
  display: block;
  text-decoration: none;
  color: var(--color-text);
  font-size: 20px;
  transition: color 0.2s ease;
  padding-left: 1rem;
  margin-bottom: 1rem;
}

/* 選單項目 */
.nav-item {
  display: block;
  padding: 15px 0;
  text-decoration: none;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-text-muted);
  font-size: 15px;
  transition: all 0.2s ease;
  padding-left: 1rem;
}

.nav-item:hover,
.nav-item:focus {
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-text-secondary);
}

.nav-item.active {
  color: var(--color-black);
  font-weight: 500;
  border-bottom: 1px solid var(--color-black);
}

/* ==================== Laptop: 769px - 1024px ==================== */
@media (max-width: 1024px) {
  .shop-sidebar {
    top: 80px;
    padding: 1rem;
  }

  .sidebar-nav {
    padding: 30px 20px;
  }

  .nav-topic {
    font-size: 18px;
    padding-left: 0.75rem;
  }

  .nav-item {
    font-size: 14px;
    padding: 12px 0;
    padding-left: 0.75rem;
  }
}

/* ==================== Tablet: 481px - 768px ==================== */
@media (max-width: 768px) {
  .user-sidebar {
    width: 100%;
    min-width: unset;
  }

  .shop-sidebar {
    position: static;
    padding: 0;
    margin-bottom: 1.5rem;
  }

  .sidebar-nav {
    padding: 0;
    border: none;
    background: transparent;
  }

  .nav-topic {
    display: none;
  }

  /* 改為水平滾動標籤 */
  .sidebar-nav {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    gap: 0.5rem;
    padding: 0.75rem 0;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
  }

  .sidebar-nav::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Edge */
  }

  .nav-item {
    flex: 0 0 auto;
    scroll-snap-align: start;
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-border-light);
    background: var(--color-white);
    white-space: nowrap;
    font-size: 14px;
    transition: all 0.2s ease;
    margin: 0;
  }

  .nav-item:hover,
  .nav-item:focus {
    border-color: var(--color-text);
    background: var(--color-bg-subtle);
  }

  .nav-item.active {
    background: var(--color-text);
    color: var(--color-white);
    border-color: var(--color-text);
    font-weight: 500;
  }
}

/* ==================== Mobile: 480px 以下 ==================== */
@media (max-width: 480px) {
  .sidebar-nav {
    gap: 0.375rem;
    padding: 0.5rem 0;
  }

  .nav-item {
    padding: 0.375rem 0.875rem;
    font-size: 13px;
  }
}