/* ============================================
   TneenMarket - Modern Multi-Vendor Marketplace Design
   Mobile-First, Native App Feel
   ============================================ */

/* ============================================
   Design System Variables
   ============================================ */
:root {
  /* Brand Colors */
  --tm-primary: #2563eb;
  --tm-primary-dark: #1e40af;
  --tm-primary-light: #3b82f6;
  --tm-secondary: #10b981;
  --tm-accent: #f59e0b;
  
  /* Neutral Colors */
  --tm-gray-50: #f9fafb;
  --tm-gray-100: #f3f4f6;
  --tm-gray-200: #e5e7eb;
  --tm-gray-300: #d1d5db;
  --tm-gray-400: #9ca3af;
  --tm-gray-500: #6b7280;
  --tm-gray-600: #4b5563;
  --tm-gray-700: #374151;
  --tm-gray-800: #1f2937;
  --tm-gray-900: #111827;
  
  /* Semantic Colors */
  --tm-success: #10b981;
  --tm-warning: #f59e0b;
  --tm-error: #ef4444;
  --tm-info: #3b82f6;
  
  /* Typography */
  --tm-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  --tm-font-size-xs: 0.75rem;
  --tm-font-size-sm: 0.875rem;
  --tm-font-size-base: 1rem;
  --tm-font-size-lg: 1.125rem;
  --tm-font-size-xl: 1.25rem;
  --tm-font-size-2xl: 1.5rem;
  --tm-font-size-3xl: 1.875rem;
  
  /* Spacing */
  --tm-spacing-xs: 0.25rem;
  --tm-spacing-sm: 0.5rem;
  --tm-spacing-md: 1rem;
  --tm-spacing-lg: 1.5rem;
  --tm-spacing-xl: 2rem;
  --tm-spacing-2xl: 3rem;
  
  /* Border Radius */
  --tm-radius-sm: 0.375rem;
  --tm-radius-md: 0.5rem;
  --tm-radius-lg: 0.75rem;
  --tm-radius-xl: 1rem;
  --tm-radius-full: 9999px;
  
  /* Shadows */
  --tm-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --tm-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --tm-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --tm-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --tm-transition-fast: 150ms ease-in-out;
  --tm-transition-base: 200ms ease-in-out;
  --tm-transition-slow: 300ms ease-in-out;
  
  /* Z-Index Layers */
  --tm-z-header: 1000;
  --tm-z-bottom-nav: 1000;
  --tm-z-dropdown: 1100;
  --tm-z-modal: 1200;
  --tm-z-toast: 1300;
}

/* ============================================
   Base Styles
   ============================================ */
body {
  font-family: var(--tm-font-family);
  color: var(--tm-gray-900);
  background-color: var(--tm-gray-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

/* ============================================
   Mobile Header (Top Bar)
   ============================================ */
.tm-mobile-header {
  position: sticky;
  top: 0;
  z-index: var(--tm-z-header);
  background: #ffffff;
  box-shadow: var(--tm-shadow-sm);
  padding: var(--tm-spacing-sm) var(--tm-spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--tm-spacing-md);
  
  .tm-logo {
    flex-shrink: 0;
    img {
      max-height: 40px;
      width: auto;
    }
    h1 {
      font-size: var(--tm-font-size-xl);
      font-weight: 700;
      color: var(--tm-primary);
      margin: 0;
      a {
        text-decoration: none;
        color: inherit;
      }
    }
  }
  
  .tm-search-mobile {
    flex: 1;
    position: relative;
    input {
      width: 100%;
      padding: var(--tm-spacing-sm) var(--tm-spacing-md);
      padding-right: 40px;
      border: 1px solid var(--tm-gray-300);
      border-radius: var(--tm-radius-full);
      font-size: var(--tm-font-size-sm);
      background: var(--tm-gray-100);
      transition: all var(--tm-transition-base);
      
      &:focus {
        outline: none;
        border-color: var(--tm-primary);
        background: #ffffff;
        box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
      }
    }
    button {
      position: absolute;
      right: var(--tm-spacing-sm);
      top: 50%;
      transform: translateY(-50%);
      background: none;
      border: none;
      color: var(--tm-gray-500);
      padding: var(--tm-spacing-xs);
      cursor: pointer;
    }
  }
  
  .tm-header-actions {
    display: flex;
    align-items: center;
    gap: var(--tm-spacing-sm);
    
    .tm-icon-btn {
      position: relative;
      background: none;
      border: none;
      padding: var(--tm-spacing-sm);
      color: var(--tm-gray-700);
      font-size: var(--tm-font-size-lg);
      cursor: pointer;
      border-radius: var(--tm-radius-md);
      transition: all var(--tm-transition-base);
      
      &:active {
        background: var(--tm-gray-100);
        transform: scale(0.95);
      }
      
      .tm-badge {
        position: absolute;
        top: 0;
        right: 0;
        background: var(--tm-error);
        color: white;
        font-size: 10px;
        padding: 2px 5px;
        border-radius: var(--tm-radius-full);
        min-width: 18px;
        text-align: center;
        font-weight: 600;
      }
    }
  }
}

/* ============================================
   Mobile Bottom Navigation
   ============================================ */
.tm-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: var(--tm-z-bottom-nav);
  background: #ffffff;
  border-top: 1px solid var(--tm-gray-200);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
  padding: var(--tm-spacing-sm) 0;
  display: flex;
  justify-content: space-around;
  align-items: center;
  
  .tm-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    text-decoration: none;
    color: var(--tm-gray-500);
    padding: var(--tm-spacing-xs) var(--tm-spacing-sm);
    border-radius: var(--tm-radius-md);
    transition: all var(--tm-transition-base);
    flex: 1;
    max-width: 80px;
    
    i {
      font-size: var(--tm-font-size-xl);
    }
    
    span {
      font-size: var(--tm-font-size-xs);
      font-weight: 500;
    }
    
    &.active {
      color: var(--tm-primary);
      
      i {
        transform: scale(1.1);
      }
    }
    
    &:active {
      transform: scale(0.95);
      background: var(--tm-gray-100);
    }
  }
}

/* Add padding to body when bottom nav is present */
body.tm-has-bottom-nav {
  padding-bottom: 70px;
}

/* ============================================
   Hero Section
   ============================================ */
.tm-hero {
  margin: var(--tm-spacing-md) var(--tm-spacing-md) 0;
  border-radius: var(--tm-radius-lg);
  overflow: hidden;
  position: relative;
  height: 180px;
  background: linear-gradient(135deg, var(--tm-primary) 0%, var(--tm-primary-dark) 100%);
  
  .tm-hero-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--tm-spacing-lg);
    color: white;
    text-align: center;
    z-index: 2;
    
    h2 {
      font-size: var(--tm-font-size-2xl);
      font-weight: 700;
      margin-bottom: var(--tm-spacing-sm);
    }
    
    p {
      font-size: var(--tm-font-size-base);
      opacity: 0.9;
      margin-bottom: var(--tm-spacing-md);
    }
    
    .tm-btn-hero {
      background: white;
      color: var(--tm-primary);
      padding: var(--tm-spacing-sm) var(--tm-spacing-lg);
      border-radius: var(--tm-radius-full);
      font-weight: 600;
      text-decoration: none;
      box-shadow: var(--tm-shadow-lg);
      transition: all var(--tm-transition-base);
      
      &:active {
        transform: scale(0.95);
      }
    }
  }
  
  .tm-hero-image {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.2;
    object-fit: cover;
    width: 100%;
    height: 100%;
  }
}

/* ============================================
   Mobile Product Cards (2 Columns)
   ============================================ */
.tm-product-grid-mobile {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--tm-spacing-md);
  padding: var(--tm-spacing-md);
  
  .tm-product-card {
    background: #ffffff;
    border-radius: var(--tm-radius-lg);
    overflow: hidden;
    box-shadow: var(--tm-shadow-sm);
    transition: all var(--tm-transition-base);
    display: flex;
    flex-direction: column;
    
    &:active {
      transform: scale(0.98);
      box-shadow: var(--tm-shadow-md);
    }
    
    .tm-product-image {
      position: relative;
      width: 100%;
      padding-top: 100%; /* 1:1 Aspect Ratio */
      overflow: hidden;
      background: var(--tm-gray-100);
      
      img {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform var(--tm-transition-slow);
      }
      
      .tm-product-badge {
        position: absolute;
        top: var(--tm-spacing-xs);
        left: var(--tm-spacing-xs);
        background: var(--tm-error);
        color: white;
        padding: 4px 8px;
        border-radius: var(--tm-radius-sm);
        font-size: var(--tm-font-size-xs);
        font-weight: 600;
        z-index: 1;
      }
      
      .tm-wishlist-btn {
        position: absolute;
        top: var(--tm-spacing-xs);
        right: var(--tm-spacing-xs);
        background: rgba(255, 255, 255, 0.9);
        border: none;
        width: 32px;
        height: 32px;
        border-radius: var(--tm-radius-full);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--tm-gray-600);
        cursor: pointer;
        transition: all var(--tm-transition-base);
        z-index: 1;
        
        &:active {
          transform: scale(0.9);
        }
        
        &.active {
          color: var(--tm-error);
        }
      }
    }
    
    .tm-product-info {
      padding: var(--tm-spacing-sm);
      flex: 1;
      display: flex;
      flex-direction: column;
      
      .tm-vendor-name {
        font-size: var(--tm-font-size-xs);
        color: var(--tm-gray-500);
        margin-bottom: 4px;
        font-weight: 500;
      }
      
      .tm-product-name {
        font-size: var(--tm-font-size-sm);
        font-weight: 600;
        color: var(--tm-gray-900);
        margin-bottom: var(--tm-spacing-xs);
        line-height: 1.4;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        text-overflow: ellipsis;
        min-height: 2.8em;
        
        a {
          color: inherit;
          text-decoration: none;
          
          &:hover {
            color: var(--tm-primary);
          }
        }
      }
      
      .tm-product-rating {
        display: flex;
        align-items: center;
        gap: 4px;
        margin-bottom: var(--tm-spacing-xs);
        
        .tm-stars {
          color: var(--tm-accent);
          font-size: var(--tm-font-size-xs);
        }
        
        .tm-rating-count {
          font-size: var(--tm-font-size-xs);
          color: var(--tm-gray-500);
        }
      }
      
      .tm-product-price {
        margin-top: auto;
        
        .tm-price-current {
          font-size: var(--tm-font-size-lg);
          font-weight: 700;
          color: var(--tm-primary);
        }
        
        .tm-price-old {
          font-size: var(--tm-font-size-xs);
          color: var(--tm-gray-400);
          text-decoration: line-through;
          margin-left: var(--tm-spacing-xs);
        }
      }
      
      .tm-add-to-cart {
        margin-top: var(--tm-spacing-sm);
        width: 100%;
        background: var(--tm-primary);
        color: white;
        border: none;
        padding: var(--tm-spacing-sm);
        border-radius: var(--tm-radius-md);
        font-weight: 600;
        font-size: var(--tm-font-size-sm);
        cursor: pointer;
        transition: all var(--tm-transition-base);
        
        &:active {
          transform: scale(0.98);
          background: var(--tm-primary-dark);
        }
      }
    }
  }
}

/* ============================================
   Desktop Header & Navigation
   ============================================ */
@media (min-width: 992px) {
  .tm-mobile-header {
    display: none;
  }
  
  .tm-bottom-nav {
    display: none;
  }
  
  body.tm-has-bottom-nav {
    padding-bottom: 0;
  }
  
  .tm-desktop-header {
    background: #ffffff;
    box-shadow: var(--tm-shadow-sm);
    position: sticky;
    top: 0;
    z-index: var(--tm-z-header);
    
    .tm-top-bar {
      background: var(--tm-gray-800);
      color: var(--tm-gray-300);
      padding: var(--tm-spacing-xs) 0;
      font-size: var(--tm-font-size-sm);
      
      .container {
        display: flex;
        justify-content: space-between;
        align-items: center;
      }
      
      .tm-top-links {
        display: flex;
        gap: var(--tm-spacing-lg);
        
        a {
          color: inherit;
          text-decoration: none;
          
          &:hover {
            color: white;
          }
        }
      }
    }
    
    .tm-main-header {
      padding: var(--tm-spacing-md) 0;
      
      .container {
        display: flex;
        align-items: center;
        gap: var(--tm-spacing-lg);
      }
      
      .tm-logo {
        flex-shrink: 0;
        img {
          max-height: 50px;
        }
      }
      
      .tm-search-desktop {
        flex: 1;
        max-width: 600px;
        position: relative;
        
        input {
          width: 100%;
          padding: var(--tm-spacing-sm) var(--tm-spacing-lg);
          padding-right: 50px;
          border: 2px solid var(--tm-gray-200);
          border-radius: var(--tm-radius-full);
          font-size: var(--tm-font-size-base);
          transition: all var(--tm-transition-base);
          
          &:focus {
            outline: none;
            border-color: var(--tm-primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
          }
        }
        
        button {
          position: absolute;
          right: var(--tm-spacing-sm);
          top: 50%;
          transform: translateY(-50%);
          background: var(--tm-primary);
          color: white;
          border: none;
          padding: var(--tm-spacing-xs) var(--tm-spacing-md);
          border-radius: var(--tm-radius-full);
          cursor: pointer;
          transition: all var(--tm-transition-base);
          
          &:hover {
            background: var(--tm-primary-dark);
          }
        }
      }
      
      .tm-header-actions {
        display: flex;
        align-items: center;
        gap: var(--tm-spacing-md);
        
        .tm-action-item {
          display: flex;
          flex-direction: column;
          align-items: center;
          text-decoration: none;
          color: var(--tm-gray-700);
          padding: var(--tm-spacing-xs);
          border-radius: var(--tm-radius-md);
          transition: all var(--tm-transition-base);
          position: relative;
          
          i {
            font-size: var(--tm-font-size-xl);
          }
          
          span {
            font-size: var(--tm-font-size-xs);
            margin-top: 2px;
          }
          
          .tm-badge {
            position: absolute;
            top: 0;
            right: 0;
            background: var(--tm-error);
            color: white;
            font-size: 10px;
            padding: 2px 5px;
            border-radius: var(--tm-radius-full);
            min-width: 18px;
            text-align: center;
            font-weight: 600;
          }
          
          &:hover {
            background: var(--tm-gray-100);
            color: var(--tm-primary);
          }
        }
      }
    }
    
    .tm-main-nav {
      background: var(--tm-primary);
      padding: 0;
      
      .container {
        display: flex;
        align-items: center;
      }
      
      .tm-nav-menu {
        display: flex;
        list-style: none;
        margin: 0;
        padding: 0;
        
        > li {
          position: relative;
          
          > a {
            display: block;
            padding: var(--tm-spacing-md) var(--tm-spacing-lg);
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: all var(--tm-transition-base);
            
            &:hover {
              background: rgba(255, 255, 255, 0.1);
            }
          }
          
          &.has-dropdown {
            > a::after {
              content: '▼';
              font-size: 10px;
              margin-left: 4px;
            }
          }
          
          .tm-dropdown-menu {
            position: absolute;
            top: 100%;
            left: 0;
            background: white;
            min-width: 200px;
            box-shadow: var(--tm-shadow-lg);
            border-radius: var(--tm-radius-md);
            padding: var(--tm-spacing-sm);
            opacity: 0;
            visibility: hidden;
            transform: translateY(-10px);
            transition: all var(--tm-transition-base);
            z-index: var(--tm-z-dropdown);
            
            a {
              display: block;
              padding: var(--tm-spacing-sm) var(--tm-spacing-md);
              color: var(--tm-gray-700);
              text-decoration: none;
              border-radius: var(--tm-radius-sm);
              
              &:hover {
                background: var(--tm-gray-100);
                color: var(--tm-primary);
              }
            }
          }
          
          &:hover .tm-dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
          }
        }
      }
    }
  }
}

/* ============================================
   Desktop Product Grid (3-4 Columns)
   ============================================ */
@media (min-width: 992px) {
  .tm-product-grid-desktop {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--tm-spacing-lg);
    padding: var(--tm-spacing-lg);
    
    @media (min-width: 1200px) {
      grid-template-columns: repeat(4, 1fr);
    }
    
    .tm-product-card {
      .tm-product-image {
        padding-top: 75%; /* 4:3 Aspect Ratio for desktop */
      }
      
      .tm-product-info {
        padding: var(--tm-spacing-md);
        
        .tm-product-name {
          font-size: var(--tm-font-size-base);
          min-height: auto;
        }
      }
    }
  }
}

/* ============================================
   Desktop Sidebar Filters
   ============================================ */
.tm-sidebar-filters {
  background: #ffffff;
  border-radius: var(--tm-radius-lg);
  padding: var(--tm-spacing-lg);
  box-shadow: var(--tm-shadow-sm);
  margin-bottom: var(--tm-spacing-lg);
  
  .tm-filter-section {
    margin-bottom: var(--tm-spacing-lg);
    padding-bottom: var(--tm-spacing-lg);
    border-bottom: 1px solid var(--tm-gray-200);
    
    &:last-child {
      border-bottom: none;
      margin-bottom: 0;
      padding-bottom: 0;
    }
    
    h4 {
      font-size: var(--tm-font-size-lg);
      font-weight: 600;
      margin-bottom: var(--tm-spacing-md);
      color: var(--tm-gray-900);
    }
    
    .tm-filter-list {
      list-style: none;
      padding: 0;
      margin: 0;
      
      li {
        margin-bottom: var(--tm-spacing-sm);
        
        label {
          display: flex;
          align-items: center;
          gap: var(--tm-spacing-sm);
          cursor: pointer;
          font-size: var(--tm-font-size-sm);
          color: var(--tm-gray-700);
          
          input[type="checkbox"],
          input[type="radio"] {
            width: 18px;
            height: 18px;
            cursor: pointer;
          }
        }
      }
    }
    
    .tm-price-range {
      display: flex;
      gap: var(--tm-spacing-sm);
      align-items: center;
      
      input {
        flex: 1;
        padding: var(--tm-spacing-sm);
        border: 1px solid var(--tm-gray-300);
        border-radius: var(--tm-radius-md);
        font-size: var(--tm-font-size-sm);
      }
    }
  }
}

/* ============================================
   Vendor Badge & Highlighting
   ============================================ */
.tm-vendor-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--tm-spacing-xs);
  background: var(--tm-gray-100);
  padding: 4px var(--tm-spacing-sm);
  border-radius: var(--tm-radius-full);
  font-size: var(--tm-font-size-xs);
  color: var(--tm-gray-700);
  font-weight: 500;
  
  .tm-vendor-icon {
    width: 16px;
    height: 16px;
    border-radius: var(--tm-radius-full);
    background: var(--tm-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 10px;
  }
  
  &.tm-verified {
    background: rgba(16, 185, 129, 0.1);
    color: var(--tm-secondary);
    
    .tm-vendor-icon {
      background: var(--tm-secondary);
    }
  }
}

.tm-vendor-card {
  background: #ffffff;
  border-radius: var(--tm-radius-lg);
  padding: var(--tm-spacing-md);
  box-shadow: var(--tm-shadow-sm);
  display: flex;
  align-items: center;
  gap: var(--tm-spacing-md);
  margin-bottom: var(--tm-spacing-md);
  transition: all var(--tm-transition-base);
  
  &:hover {
    box-shadow: var(--tm-shadow-md);
    transform: translateY(-2px);
  }
  
  .tm-vendor-avatar {
    width: 60px;
    height: 60px;
    border-radius: var(--tm-radius-full);
    object-fit: cover;
    border: 2px solid var(--tm-gray-200);
  }
  
  .tm-vendor-info {
    flex: 1;
    
    .tm-vendor-name {
      font-size: var(--tm-font-size-lg);
      font-weight: 600;
      color: var(--tm-gray-900);
      margin-bottom: 4px;
    }
    
    .tm-vendor-rating {
      display: flex;
      align-items: center;
      gap: 4px;
      margin-bottom: 4px;
      
      .tm-stars {
        color: var(--tm-accent);
      }
    }
    
    .tm-vendor-products {
      font-size: var(--tm-font-size-sm);
      color: var(--tm-gray-500);
    }
  }
}

/* ============================================
   Product Detail Page
   ============================================ */
.tm-product-detail {
  .tm-product-images {
    .tm-main-image {
      border-radius: var(--tm-radius-lg);
      overflow: hidden;
      margin-bottom: var(--tm-spacing-md);
      
      img {
        width: 100%;
        height: auto;
        display: block;
      }
    }
    
    .tm-thumbnail-images {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: var(--tm-spacing-sm);
      
      .tm-thumbnail {
        border-radius: var(--tm-radius-md);
        overflow: hidden;
        cursor: pointer;
        border: 2px solid transparent;
        transition: all var(--tm-transition-base);
        
        &.active {
          border-color: var(--tm-primary);
        }
        
        img {
          width: 100%;
          height: auto;
          display: block;
        }
      }
    }
  }
  
  .tm-product-info-detail {
    .tm-product-title {
      font-size: var(--tm-font-size-3xl);
      font-weight: 700;
      margin-bottom: var(--tm-spacing-md);
      color: var(--tm-gray-900);
    }
    
    .tm-product-price-detail {
      display: flex;
      align-items: baseline;
      gap: var(--tm-spacing-md);
      margin-bottom: var(--tm-spacing-lg);
      
      .tm-price-current {
        font-size: var(--tm-font-size-3xl);
        font-weight: 700;
        color: var(--tm-primary);
      }
      
      .tm-price-old {
        font-size: var(--tm-font-size-xl);
        color: var(--tm-gray-400);
        text-decoration: line-through;
      }
    }
    
    .tm-add-to-cart-section {
      margin-top: var(--tm-spacing-xl);
      
      .tm-quantity-selector {
        display: flex;
        align-items: center;
        gap: var(--tm-spacing-md);
        margin-bottom: var(--tm-spacing-md);
        
        button {
          width: 40px;
          height: 40px;
          border: 1px solid var(--tm-gray-300);
          background: white;
          border-radius: var(--tm-radius-md);
          cursor: pointer;
          font-size: var(--tm-font-size-lg);
          transition: all var(--tm-transition-base);
          
          &:hover {
            border-color: var(--tm-primary);
            color: var(--tm-primary);
          }
        }
        
        input {
          width: 80px;
          text-align: center;
          padding: var(--tm-spacing-sm);
          border: 1px solid var(--tm-gray-300);
          border-radius: var(--tm-radius-md);
          font-size: var(--tm-font-size-base);
        }
      }
      
      .tm-btn-add-cart {
        width: 100%;
        background: var(--tm-primary);
        color: white;
        border: none;
        padding: var(--tm-spacing-md) var(--tm-spacing-lg);
        border-radius: var(--tm-radius-md);
        font-size: var(--tm-font-size-lg);
        font-weight: 600;
        cursor: pointer;
        transition: all var(--tm-transition-base);
        
        &:hover {
          background: var(--tm-primary-dark);
          transform: translateY(-2px);
          box-shadow: var(--tm-shadow-lg);
        }
        
        &:active {
          transform: translateY(0);
        }
      }
    }
  }
}

/* ============================================
   Utility Classes
   ============================================ */
.tm-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 var(--tm-spacing-md);
}

.tm-section-title {
  font-size: var(--tm-font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--tm-spacing-lg);
  color: var(--tm-gray-900);
}

.tm-btn-primary {
  background: var(--tm-primary);
  color: white;
  padding: var(--tm-spacing-sm) var(--tm-spacing-lg);
  border-radius: var(--tm-radius-md);
  border: none;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--tm-transition-base);
  
  &:hover {
    background: var(--tm-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--tm-shadow-md);
  }
}

.tm-btn-secondary {
  background: var(--tm-gray-200);
  color: var(--tm-gray-700);
  padding: var(--tm-spacing-sm) var(--tm-spacing-lg);
  border-radius: var(--tm-radius-md);
  border: none;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--tm-transition-base);
  
  &:hover {
    background: var(--tm-gray-300);
  }
}

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (max-width: 991px) {
  .tm-desktop-header {
    display: none;
  }
  
  .tm-sidebar-filters {
    display: none; /* Can be shown in a modal on mobile */
  }
  
  .tm-product-grid-desktop {
    display: none;
  }
}

@media (min-width: 992px) {
  .tm-product-grid-mobile {
    display: none;
  }
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tm-fade-in {
  animation: fadeIn 0.3s ease-out;
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* ============================================
   Loading States
   ============================================ */
.tm-loading {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--tm-spacing-2xl);
  
  &::after {
    content: '';
    width: 40px;
    height: 40px;
    border: 4px solid var(--tm-gray-200);
    border-top-color: var(--tm-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}