/* ============================================
   CATEGORIES PAGE STYLES
   ============================================ */

:root {
    --primary: #0B4F6C;
    --primary-dark: #083b4f;
    --primary-light: #1a6b8a;
    --secondary: #10B981;
    --accent: #F59E0B;
    --danger: #EF4444;
    --dark: #1F2937;
    --gray-800: #1F2937;
    --gray-700: #374151;
    --gray-600: #4B5563;
    --gray-500: #6B7280;
    --gray-400: #9CA3AF;
    --gray-300: #D1D5DB;
    --gray-200: #E5E7EB;
    --gray-100: #F3F4F6;
    --white: #FFFFFF;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.12);
    --radius: 12px;
    --radius-sm: 8px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: var(--white);
    color: var(--dark);
    line-height: 1.4;
    padding-bottom: 70px;
}

/* ============================================
   HEADER
   ============================================ */
.header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    max-width: 1200px;
    margin: 0 auto;
}

.back-btn {
    background: none;
    border: none;
    font-size: 20px;
    color: var(--gray-600);
    cursor: pointer;
    padding: 8px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.back-btn:hover {
    background: var(--gray-100);
    color: var(--primary);
}

.logo {
    display: flex;
    align-items: center;
    gap: 4px;
    font-weight: 700;
    font-size: 20px;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 20px;
    font-style: italic;
}

.logo-text {
    color: var(--primary);
}

.logo-text span {
    color: var(--primary-light);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.search-btn {
    background: none;
    border: none;
    color: var(--gray-600);
    font-size: 20px;
    cursor: pointer;
    padding: 8px;
}

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

/* ============================================
   PAGE TITLE
   ============================================ */
.page-title {
    padding: 16px;
    border-bottom: 1px solid var(--gray-200);
}

.page-title h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
}

/* ============================================
   MOBILE CATEGORY NAVIGATION (SIDE BY SIDE)
   ============================================ */
.mobile-category-nav {
    display: none;
    height: calc(100vh - 180px);
    overflow: hidden;
}

/* Left Column - Main Categories */
.mobile-categories-left {
    flex: 0 0 120px;
    background: var(--gray-100);
    border-right: 1px solid var(--gray-200);
    overflow-y: auto;
    height: 100%;
}

.mobile-categories-list {
    padding: 8px 0;
}

.mobile-category-item {
    padding: 16px 12px;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-700);
    cursor: pointer;
    transition: all 0.2s;
    border-left: 3px solid transparent;
    word-break: break-word;
    line-height: 1.3;
}

.mobile-category-item.active {
    background: var(--white);
    color: var(--primary);
    font-weight: 600;
    border-left-color: var(--primary);
}

/* Right Column - Subcategories */
.mobile-subcategories-right {
    flex: 1;
    background: var(--white);
    overflow-y: auto;
    height: 100%;
    padding: 16px;
}

.mobile-subcategories-header {
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--gray-200);
}

.mobile-subcategories-header h2 {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
}

.mobile-subcategories-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mobile-subcategory-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    color: var(--dark);
}

.mobile-subcategory-item:hover {
    background: var(--gray-100);
}

.mobile-subcategory-image {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    background: var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.mobile-subcategory-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.mobile-subcategory-image i {
    font-size: 18px;
    color: var(--primary);
}

.mobile-subcategory-info {
    flex: 1;
}

.mobile-subcategory-name {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 2px;
}

.mobile-subcategory-count {
    font-size: 11px;
    color: var(--gray-500);
}

/* ============================================
   DESKTOP CATEGORIES CONTAINER
   ============================================ */
.desktop-categories-container {
    display: flex;
    max-width: 1200px;
    margin: 0 auto;
    min-height: calc(100vh - 180px);
}

/* Left Column - Main Categories (Desktop) */
.main-categories {
    flex: 0 0 280px;
    background: var(--white);
    border-right: 1px solid var(--gray-200);
    overflow-y: auto;
    height: calc(100vh - 140px);
    position: sticky;
    top: 70px;
}

.categories-list {
    padding: 8px 0;
}

.category-main-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    cursor: pointer;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.category-main-item:hover {
    background: var(--gray-100);
}

.category-main-item.active {
    background: #EFF6FF;
    border-left-color: var(--primary);
}

.category-main-name {
    font-size: 15px;
    font-weight: 500;
    color: var(--dark);
}

.category-main-count {
    font-size: 13px;
    color: var(--gray-500);
    background: var(--gray-200);
    padding: 2px 8px;
    border-radius: 20px;
}

.category-main-item.active .category-main-count {
    background: var(--primary);
    color: white;
}

/* Right Column - Subcategories (Desktop) */
.subcategories-panel {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    height: calc(100vh - 140px);
}

.subcategories-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--gray-200);
}

.subcategories-header h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary);
}

.view-all-link {
    color: var(--primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
}

.view-all-link:hover {
    text-decoration: underline;
}

/* Curated Section */
.curated-section {
    margin-bottom: 30px;
}

.curated-header {
    display: flex;
    gap: 20px;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--gray-200);
    overflow-x: auto;
    scrollbar-width: none;
}

.curated-header::-webkit-scrollbar {
    display: none;
}

.curated-tab {
    font-size: 16px;
    font-weight: 500;
    color: var(--gray-500);
    cursor: pointer;
    padding: 4px 0;
    white-space: nowrap;
}

.curated-tab.active {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
}

.curated-items {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.curated-item {
    background: var(--gray-100);
    padding: 8px 16px;
    border-radius: 30px;
    font-size: 13px;
    color: var(--gray-700);
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid var(--gray-200);
}

.curated-item:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Subcategories Grid (Desktop) */
.subcategories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 20px;
}

.subcategory-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--gray-700);
    padding: 16px 12px;
    border-radius: var(--radius);
    transition: all 0.2s;
    border: 1px solid transparent;
}

.subcategory-card:hover {
    background: var(--gray-100);
    border-color: var(--gray-200);
    transform: translateY(-2px);
}

.subcategory-image {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: 12px;
    background: var(--gray-100);
    border: 2px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
}

.subcategory-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.subcategory-image i {
    font-size: 32px;
    color: var(--primary);
}

.subcategory-name {
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 130px;
}

.subcategory-count {
    font-size: 12px;
    color: var(--gray-500);
}

/* ============================================
   BOTTOM NAVIGATION
   ============================================ */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--white);
    border-top: 1px solid var(--gray-200);
    display: flex;
    padding: 8px 0 12px;
    z-index: 1000;
}

.nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--gray-400);
    font-size: 11px;
    gap: 4px;
}

.nav-item i {
    font-size: 20px;
}

.nav-item.active {
    color: var(--primary);
}

/* ============================================
   LOADING STATES
   ============================================ */
.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-line {
    height: 20px;
    background: var(--gray-200);
    border-radius: 4px;
    margin: 8px 0;
}

.skeleton-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gray-200);
}

/* ============================================
   TOAST
   ============================================ */
.toast {
    position: fixed;
    bottom: 80px;
    left: 16px;
    right: 16px;
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 12px 20px;
    border-radius: 30px;
    font-size: 14px;
    text-align: center;
    z-index: 3000;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s;
    max-width: 400px;
    margin: 0 auto;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

/* ============================================
   RESPONSIVE - MOBILE
   ============================================ */
@media (max-width: 768px) {
    .desktop-categories-container {
        display: none;
    }
    
    .mobile-category-nav {
        display: flex;
    }
    
    .page-title {
        padding: 12px 16px;
    }
    
    .page-title h1 {
        font-size: 20px;
    }
}

@media (min-width: 769px) {
    .mobile-category-nav {
        display: none;
    }
    
    .desktop-categories-container {
        display: flex;
    }
}

@media (max-width: 480px) {
    .mobile-categories-left {
        flex: 0 0 100px;
    }
    
    .mobile-category-item {
        padding: 14px 8px;
        font-size: 12px;
    }
    
    .mobile-subcategories-right {
        padding: 12px;
    }
}