/* ============================================
   DESIGN SYSTEM - BRAND E-COMMERCE
   ============================================ */

/* CSS Variables */
:root {
    /* Colors - Primary (Fashion-friendly green) */
    --color-primary: #2d6a4f;
    --color-primary-dark: #1b4332;
    --color-primary-light: #40916c;
    
    /* Colors - Secondary (Warm accent) */
    --color-secondary: #d4a373;
    --color-secondary-dark: #b08968;
    --color-secondary-light: #e9c8a8;
    
    /* Colors - Accent */
    --color-accent: #ffb703;
    --color-accent-dark: #fb8500;
    
    /* Colors - Neutral */
    --color-white: #ffffff;
    --color-black: #000000;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    
    /* Colors - Semantic */
    --color-success: #10b981;
    --color-success-light: #d1fae5;
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-error: #ef4444;
    --color-error-light: #fee2e2;
    --color-info: #3b82f6;
    --color-info-light: #dbeafe;
    
    /* Typography */
    --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-family-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    
    /* Font Sizes */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Font Weights */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    
    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    
    /* Container */
    --container-max-width: 1280px;
    --container-padding: var(--spacing-lg);
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    width: 100%;
    overflow-x: hidden;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-gray-900);
    background-color: var(--color-gray-50);
    margin: 0;
    padding: 0;
    width: 100%;
    overflow-x: hidden;
    min-height: 100vh;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-extrabold);
}

h2 {
    font-size: var(--font-size-4xl);
}

h3 {
    font-size: var(--font-size-3xl);
}

h4 {
    font-size: var(--font-size-2xl);
}

h5 {
    font-size: var(--font-size-xl);
}

h6 {
    font-size: var(--font-size-lg);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-gray-600);
}

.text-sm {
    font-size: var(--font-size-sm);
}

.text-lg {
    font-size: var(--font-size-lg);
}

.text-xl {
    font-size: var(--font-size-xl);
}

.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.font-medium {
    font-weight: var(--font-weight-medium);
}

.font-semibold {
    font-weight: var(--font-weight-semibold);
}

.font-bold {
    font-weight: var(--font-weight-bold);
}

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

.text-secondary {
    color: var(--color-secondary);
}

.text-gray {
    color: var(--color-gray-600);
}

.text-white {
    color: var(--color-white);
}

/* ============================================
   LAYOUT
   ============================================ */

.section {
    padding: 4rem 0;
}

.bg-light {
    background-color: var(--color-gray-50);
}

.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--container-padding);
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(var(--spacing-md) * -1);
}

.col {
    flex: 1;
    padding: 0 var(--spacing-md);
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.grid-5 {
    grid-template-columns: repeat(5, 1fr);
}

.grid-6 {
    grid-template-columns: repeat(6, 1fr);
}

/* Flex Utilities */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-sm {
    gap: var(--spacing-sm);
}

.gap-md {
    gap: var(--spacing-md);
}

.gap-lg {
    gap: var(--spacing-lg);
}

/* ============================================
   COMPONENTS - BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    line-height: 1;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
    white-space: nowrap;
    user-select: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    border: 2px solid var(--color-primary);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: var(--color-secondary);
    color: var(--color-white);
    border: 2px solid var(--color-secondary);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-secondary-dark);
    border-color: var(--color-secondary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-outline:hover:not(:disabled) {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn-white {
    background-color: var(--color-white);
    color: var(--color-primary);
    border: 2px solid var(--color-white);
}

.btn-white:hover:not(:disabled) {
    background-color: var(--color-gray-100);
    border-color: var(--color-gray-100);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

.btn-block {
    width: 100%;
}

/* ============================================
   COMPONENTS - CARDS
   ============================================ */

.card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.card-body {
    padding: var(--spacing-lg);
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-gray-200);
}

.card-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-200);
}

.card-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
}

.card-text {
    color: var(--color-gray-600);
    margin-bottom: 0;
}

/* ============================================
   COMPONENTS - FORMS
   ============================================ */

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-sm);
}

.form-control {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-gray-900);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 26, 46, 0.1);
}

.form-control::placeholder {
    color: var(--color-gray-400);
}

.form-control:disabled {
    background-color: var(--color-gray-100);
    cursor: not-allowed;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right var(--spacing-sm) center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: var(--spacing-2xl);
}

.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.form-check-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    cursor: pointer;
}

.form-text {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

/* ============================================
   COMPONENTS - BADGES
   ============================================ */

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    line-height: 1;
    border-radius: var(--radius-full);
}

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

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

.badge-success {
    background-color: var(--color-success);
    color: var(--color-white);
}

.badge-warning {
    background-color: var(--color-warning);
    color: var(--color-white);
}

.badge-error {
    background-color: var(--color-error);
    color: var(--color-white);
}

.badge-info {
    background-color: var(--color-info);
    color: var(--color-white);
}

.badge-light {
    background-color: var(--color-gray-100);
    color: var(--color-gray-700);
}

/* ============================================
   COMPONENTS - ALERTS
   ============================================ */

.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid;
    margin-bottom: var(--spacing-lg);
}

.alert-success {
    background-color: var(--color-success-light);
    border-color: var(--color-success);
    color: var(--color-gray-800);
}

.alert-warning {
    background-color: var(--color-warning-light);
    border-color: var(--color-warning);
    color: var(--color-gray-800);
}

.alert-error {
    background-color: var(--color-error-light);
    border-color: var(--color-error);
    color: var(--color-gray-800);
}

.alert-info {
    background-color: var(--color-info-light);
    border-color: var(--color-info);
    color: var(--color-gray-800);
}

/* ============================================
   COMPONENTS - MODAL
   ============================================ */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-modal);
    display: none;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal-backdrop);
}

.modal-content {
    position: relative;
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-2xl);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    z-index: var(--z-modal);
    animation: modalFadeIn var(--transition-base);
    -webkit-overflow-scrolling: touch;
}

.modal-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    color: var(--color-gray-400);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--color-gray-600);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-200);
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ============================================
   COMPONENTS - QUICK VIEW MODAL
   ============================================ */

.modal-lg {
    max-width: 800px;
}

.quick-view-content {
    display: flex;
    gap: var(--spacing-lg);
}

.quick-view-image {
    flex: 1;
    min-height: 300px;
}

.quick-view-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-md);
}

.quick-view-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.quick-view-details h2 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin: 0;
    color: var(--color-gray-900);
}

.quick-view-price {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.quick-view-price .price {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

.quick-view-price .original-price {
    font-size: var(--font-size-lg);
    color: var(--color-gray-400);
    text-decoration: line-through;
}

.quick-view-stock {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--color-gray-100);
    border-radius: var(--radius-sm);
    display: inline-block;
}

.quick-view-description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    line-height: 1.6;
}

.quick-view-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.quick-view-loading,
.quick-view-error {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
}

.quick-view-error {
    color: var(--color-error);
}

/* ============================================
   COMPONENTS - TOAST
   ============================================ */

.toast-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: var(--z-tooltip);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.toast {
    min-width: 300px;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    border-left: 4px solid;
    animation: toastSlideIn var(--transition-base);
}

.toast-success {
    border-color: var(--color-success);
}

.toast-error {
    border-color: var(--color-error);
}

.toast-warning {
    border-color: var(--color-warning);
}

.toast-info {
    border-color: var(--color-info);
}

@keyframes toastSlideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ============================================
   COMPONENTS - NAVBAR
   ============================================ */

.navbar {
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    transition: all var(--transition-base);
    width: 100%;
}

.navbar-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    gap: var(--spacing-xl);
}

.navbar-bottom {
    border-top: 1px solid var(--color-gray-100);
    padding: var(--spacing-sm) 0;
}

.navbar-brand {
    flex-shrink: 0;
}

.brand-logo {
    display: block;
    text-decoration: none;
}

.brand-name {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-primary);
    letter-spacing: -0.5px;
}

.navbar-search-wrapper {
    flex: 1;
    max-width: 500px;
}

.search-input-group {
    display: flex;
    align-items: center;
    background-color: var(--color-gray-100);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm) var(--spacing-md);
    transition: all var(--transition-fast);
}

.search-input-group:focus-within {
    background-color: var(--color-white);
    box-shadow: 0 0 0 3px rgba(26, 26, 46, 0.1);
}

.search-input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: var(--font-size-sm);
    color: var(--color-gray-900);
    outline: none;
}

.search-input::placeholder {
    color: var(--color-gray-400);
}

.search-button {
    background: none;
    border: none;
    color: var(--color-gray-500);
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: color var(--transition-fast);
}

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

.navbar-user-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav-icon-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    color: var(--color-gray-600);
    transition: all var(--transition-fast);
}

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

.cart-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background-color: var(--color-secondary);
    color: var(--color-white);
    font-size: 10px;
    font-weight: var(--font-weight-bold);
    min-width: 18px;
    height: 18px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
}

.login-btn {
    padding: var(--spacing-xs) var(--spacing-lg);
    font-weight: var(--font-weight-semibold);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-gray-600);
    cursor: pointer;
    padding: var(--spacing-sm);
    transition: color var(--transition-fast);
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
}

.mobile-menu-toggle:hover {
    color: var(--color-primary);
}

.mobile-menu-toggle:active {
    transform: scale(0.95);
}

.navbar-menu {
    display: flex;
    justify-content: center;
}

.navbar-nav {
    display: flex;
    gap: var(--spacing-xl);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-600);
    text-decoration: none;
    padding: var(--spacing-xs) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Navbar Scrolled State */
.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

/* Mobile Menu - NEW DRAWER IMPLEMENTATION */
.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    z-index: 9998;
    background: rgba(0, 0, 0, 0.35);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu {
    position: fixed !important;
    top: 0 !important;
    right: 0 !important;
    left: auto !important;
    width: 280px !important;
    max-width: 85vw !important;
    height: 100dvh !important;
    z-index: 9999 !important;
    background: #fff;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    transform: translateX(100%) !important;
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
}

.mobile-menu.active {
    transform: translateX(0) !important;
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border-bottom: 1px solid #e5e7eb;
}

.mobile-brand .brand-name {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-primary);
}

.mobile-menu-close {
    background: none;
    border: none;
    color: #4b5563;
    cursor: pointer;
    padding: 0.5rem;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.15s ease;
}

.mobile-menu-close:hover {
    color: #1f2937;
}

.mobile-menu-nav {
    flex: 1;
    padding: 0;
    list-style: none;
    margin: 0;
}

.mobile-nav-link {
    display: block;
    padding: 1rem;
    font-size: 1rem;
    font-weight: 500;
    color: #1f2937;
    text-decoration: none;
    border-bottom: 1px solid #f3f4f6;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.mobile-nav-link:hover {
    background-color: #f9fafb;
    color: var(--color-primary);
}

.mobile-nav-link:active {
    background-color: #f3f4f6;
}

.mobile-menu-footer {
    padding: 1rem;
    border-top: 1px solid #e5e7eb;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mobile-menu-btn {
    display: block;
    padding: 0.75rem 1rem;
    text-align: center;
    text-decoration: none;
    font-weight: 600;
    border-radius: 0.5rem;
    transition: all 0.15s ease;
}

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

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

.mobile-menu-btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.mobile-menu-btn-secondary:hover {
    background-color: var(--color-primary-light);
    color: white;
}

/* ============================================
   COMPONENTS - LOADING
   ============================================ */

.loading {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid var(--color-gray-300);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.loading-lg {
    width: 2rem;
    height: 2rem;
}

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

/* ============================================
   ANIMATIONS
   ============================================ */

.fade-in {
    animation: fadeIn var(--transition-base);
}

.fade-up {
    animation: fadeUp var(--transition-base);
}

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

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--transition-slow);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.d-none {
    display: none !important;
}

.d-block {
    display: block !important;
}

.d-flex {
    display: flex !important;
}

.d-inline-flex {
    display: inline-flex !important;
}

.m-0 {
    margin: 0 !important;
}

.mt-0 {
    margin-top: 0 !important;
}

.mb-0 {
    margin-bottom: 0 !important;
}

.p-0 {
    padding: 0 !important;
}

.pt-0 {
    padding-top: 0 !important;
}

.pb-0 {
    padding-bottom: 0 !important;
}

.text-decoration-none {
    text-decoration: none !important;
}

.position-relative {
    position: relative !important;
}

.position-absolute {
    position: absolute !important;
}

.w-100 {
    width: 100% !important;
}

.h-100 {
    height: 100% !important;
}

/* ============================================
   TOUCH OPTIMIZATIONS
   ============================================ */

/* Remove tap highlight on mobile */
* {
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
}

/* Improve touch targets */
.btn,
.nav-icon-btn,
.nav-link,
.mobile-nav-link,
.mobile-menu-btn,
.product-card-actions button,
.quick-view-btn {
    min-height: 44px;
    min-width: 44px;
}

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

/* Prevent text selection on interactive elements */
.btn,
.nav-link,
.mobile-nav-link {
    user-select: none;
    -webkit-user-select: none;
}

/* Active states for touch feedback */
.btn:active,
.nav-link:active,
.mobile-nav-link:active {
    transform: scale(0.98);
    opacity: 0.8;
}

/* Focus styles for accessibility */
.btn:focus-visible,
.nav-link:focus-visible,
.mobile-nav-link:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
    :root {
        --container-padding: var(--spacing-md);
    }
    
    .grid-4,
    .grid-5,
    .grid-6 {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .navbar-search-wrapper {
        max-width: 300px;
    }
    
    .navbar-nav {
        gap: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: var(--spacing-sm);
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
        --font-size-2xl: 1.5rem;
        --font-size-xl: 1.25rem;
        --font-size-lg: 1.125rem;
    }
    
    /* Container */
    .container {
        padding: 0 var(--container-padding);
        max-width: 100%;
        overflow-x: hidden;
    }
    
    /* Grid Layouts */
    .grid-2 {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .grid-3,
    .grid-4,
    .grid-5,
    .grid-6 {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    /* Navbar Mobile Styles */
    .navbar {
        padding: var(--spacing-sm) 0;
        position: relative;
        z-index: var(--z-sticky);
        width: 100%;
        max-width: 100vw;
    }
    
    .navbar-top {
        padding: var(--spacing-xs) 0;
        gap: var(--spacing-sm);
        width: 100%;
    }
    
    .navbar-bottom {
        display: none !important;
        visibility: hidden !important;
        opacity: 0 !important;
        height: 0 !important;
        overflow: hidden !important;
        position: absolute !important;
        left: -9999px !important;
    }
    
    .navbar-menu {
        display: none !important;
        visibility: hidden !important;
        opacity: 0 !important;
        height: 0 !important;
        overflow: hidden !important;
        position: absolute !important;
        left: -9999px !important;
    }
    
    .navbar-nav {
        display: none !important;
        visibility: hidden !important;
        opacity: 0 !important;
        height: 0 !important;
        overflow: hidden !important;
        position: absolute !important;
        left: -9999px !important;
    }
    
    .nav-link {
        display: none !important;
        visibility: hidden !important;
        opacity: 0 !important;
        height: 0 !important;
        overflow: hidden !important;
        position: absolute !important;
        left: -9999px !important;
    }
    
    .navbar-search-wrapper {
        display: none !important;
        visibility: hidden !important;
        opacity: 0 !important;
        height: 0 !important;
        overflow: hidden !important;
        position: absolute !important;
        left: -9999px !important;
    }
    
    .navbar-user-actions {
        gap: var(--spacing-xs);
    }
    
    .login-btn {
        display: none !important;
        visibility: hidden !important;
        opacity: 0 !important;
        height: 0 !important;
        overflow: hidden !important;
        position: absolute !important;
        left: -9999px !important;
    }
    
    .mobile-menu-toggle {
        display: flex !important;
    }
    
    .brand-name {
        font-size: var(--font-size-lg);
    }
    
    /* Mobile Bottom Navigation */
    .mobile-bottom-nav {
        display: flex !important;
        justify-content: space-around;
        padding: 8px 0 calc(8px + env(safe-area-inset-bottom));
    }
    
    .whatsapp-float {
        bottom: calc(70px + env(safe-area-inset-bottom));
        width: 50px;
        height: 50px;
    }
    
    /* Modal */
    .modal-content {
        max-width: 95%;
        max-height: 85vh;
        margin: var(--spacing-md);
    }
    
    .modal-lg {
        max-width: 95%;
    }
    
    /* Quick View Modal Mobile */
    .quick-view-content {
        flex-direction: column;
    }
    
    .quick-view-image {
        aspect-ratio: 1;
        max-height: 300px;
    }
    
    .quick-view-details {
        padding: var(--spacing-md);
    }
    
    .quick-view-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .quick-view-actions .btn {
        width: 100%;
    }
    
    /* Buttons */
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    .btn-sm {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
    }
    
    /* Forms */
    .form-control {
        padding: var(--spacing-sm);
        font-size: 16px; /* Prevent zoom on iOS */
    }
    
    /* Toast */
    .toast {
        min-width: auto;
        max-width: calc(100vw - 32px);
        margin: 0 var(--spacing-md);
    }
    
    .toast-container {
        top: var(--spacing-md);
        right: var(--spacing-md);
        left: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: var(--spacing-xs);
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
        --font-size-2xl: 1.25rem;
        --font-size-xl: 1.125rem;
        --font-size-lg: 1rem;
    }
    
    .container {
        padding: 0 var(--spacing-xs);
    }
    
    .grid-2 {
        grid-template-columns: 1fr;
    }
    
    /* Mobile Menu - Smaller screens */
    .mobile-menu {
        width: 90%;
        max-width: 300px;
        min-width: 260px;
    }
    
    .brand-name {
        font-size: var(--font-size-base);
    }
    
    .navbar-top {
        gap: var(--spacing-xs);
    }
}

@media (max-width: 320px) {
    :root {
        --font-size-5xl: 1.75rem;
        --font-size-4xl: 1.5rem;
        --font-size-3xl: 1.25rem;
        --font-size-2xl: 1.125rem;
        --font-size-xl: 1rem;
        --font-size-lg: 0.9375rem;
    }
    
    .mobile-nav-link {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: var(--spacing-xs);
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
        --font-size-2xl: 1.25rem;
        --font-size-xl: 1.125rem;
        --font-size-lg: 1rem;
    }
    
    .container {
        padding: 0 var(--spacing-xs);
    }
    
    .grid-2 {
        grid-template-columns: 1fr;
    }
    
    .brand-name {
        font-size: var(--font-size-base);
    }
    
    .navbar-top {
        gap: var(--spacing-xs);
    }
    
    .nav-icon-btn {
        width: 36px;
        height: 36px;
    }
    
    .mobile-bottom-nav {
        padding: 6px 0 calc(6px + env(safe-area-inset-bottom));
    }
    
    .mobile-bottom-nav .nav-item {
        font-size: 10px;
    }
    
    .whatsapp-float {
        bottom: calc(65px + env(safe-area-inset-bottom));
        width: 45px;
        height: 45px;
        right: 16px;
    }
}

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    bottom: 80px;
    right: 20px;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.whatsapp-float:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

/* Mobile Bottom Navigation */
.mobile-bottom-nav {
    display: none !important;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    border-top: 1px solid var(--color-gray-200);
    padding: 8px 0;
    z-index: 999;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
    -webkit-tap-highlight-color: transparent;
}

.mobile-bottom-nav .nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: var(--color-gray-600);
    font-size: var(--font-size-xs);
    padding: 4px;
    transition: color 0.2s ease;
    min-height: 48px; /* Touch target size */
    -webkit-tap-highlight-color: transparent;
}

.mobile-bottom-nav .nav-item svg {
    width: 24px;
    height: 24px;
    margin-bottom: 4px;
}

.mobile-bottom-nav .nav-item:hover,
.mobile-bottom-nav .nav-item.active {
    color: var(--color-primary);
}

@media (max-width: 768px) {
    .mobile-bottom-nav {
        display: flex !important;
        justify-content: space-around;
    }
    
    .whatsapp-float {
        bottom: 75px;
    }
}

@media (max-width: 480px) {
    .grid-2,
    .grid-3,
    .grid-4,
    .grid-5,
    .grid-6 {
        grid-template-columns: 1fr;
    }
    
    .brand-name {
        font-size: var(--font-size-lg);
    }
    
    .nav-icon-btn {
        width: 36px;
        height: 36px;
    }
    
    .mobile-menu {
        max-width: 320px;
    }
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    min-width: 300px;
    padding: 16px 20px;
    border-radius: 12px;
    background: white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 12px;
    transform: translateX(100%);
    opacity: 0;
    transition: all 0.3s ease-out;
}

.toast-success {
    border-left: 4px solid #10b981;
}

.toast-error {
    border-left: 4px solid #ef4444;
}

.toast-warning {
    border-left: 4px solid #f59e0b;
}

.toast-info {
    border-left: 4px solid #3b82f6;
}

.toast p {
    margin: 0;
    font-size: 14px;
    color: #374151;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease-out, visibility 0.3s ease-out;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: white;
    border-radius: 16px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform 0.3s ease-out;
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    border: none;
    background: #f3f4f6;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease-out;
}

.modal-close:hover {
    background: #e5e7eb;
}

.modal-header {
    padding: 24px 24px 16px;
    border-bottom: 1px solid #e5e7eb;
}

.modal-header h3 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid #e5e7eb;
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Loading Spinner */
.loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Smooth Scroll Behavior */
* {
    scroll-margin-top: 80px;
}