/**
 * ==============================================================================
 * ShopEase E-Commerce Custom Styles (styles.css)
 * ==============================================================================
 *
 * PURPOSE:
 * --------
 * Custom CSS for the ShopEase e-commerce application.
 * Built on top of Bootstrap 5 with Flipkart-inspired design.
 *
 * ARCHITECTURE:
 * -------------
 * This stylesheet is organized into logical sections:
 *
 * 1. CSS VARIABLES (Custom Properties)
 *    - Color palette based on Flipkart's design
 *    - Primary blue (#2874f0), Secondary orange (#ff9f00)
 *    - Consistent shadows and borders
 *
 * 2. BASE STYLES
 *    - Body defaults, font stack
 *    - Box-sizing reset
 *
 * 3. NAVIGATION
 *    - Navbar with gradient background
 *    - Search bar with button
 *    - Cart badge positioning
 *    - Search dropdown suggestions
 *
 * 4. PRODUCT DISPLAY
 *    - Category bar (horizontal scroll)
 *    - Product cards (grid view)
 *    - Product list items (search results)
 *    - Product detail page
 *
 * 5. CART & CHECKOUT
 *    - Cart item cards
 *    - Quantity selector
 *    - Order summary sticky card
 *    - Payment method cards
 *    - Address selection cards
 *    - Bank option buttons
 *
 * 6. USER ACCOUNT
 *    - Auth pages (login/signup)
 *    - Profile sidebar
 *    - Order history items
 *
 * 7. FEEDBACK & STATES
 *    - Toast notifications
 *    - Loading spinners
 *    - Skeleton loaders
 *
 * 8. BUTTONS & UTILITIES
 *    - Custom button variants
 *    - Cursor utilities
 *    - Responsive helpers
 *
 * COLOR PALETTE:
 * --------------
 * Primary Blue:    #2874f0 (Flipkart blue - links, buttons)
 * Primary Dark:    #1a5dc8 (hover states)
 * Secondary:       #ff9f00 (cart button, badges)
 * Success:         #388e3c (ratings, discounts)
 * Danger:          #dc3545 (errors, delete)
 * Background:      #f1f3f6 (page background)
 * White:           #ffffff (cards)
 * Text Dark:       #212121 (primary text)
 * Text Muted:      #878787 (secondary text)
 * Border:          #e0e0e0 (card borders)
 *
 * RESPONSIVE BREAKPOINTS:
 * -----------------------
 * Uses Bootstrap's breakpoints:
 * - xs: <576px (mobile)
 * - sm: 576px-767px (large mobile)
 * - md: 768px-991px (tablet)
 * - lg: 992px-1199px (desktop)
 * - xl: 1200px+ (large desktop)
 *
 * Custom mobile styles at 768px for:
 * - Search bar full width
 * - Product cards smaller images
 * - Cart items stacked vertically
 * - Category bar horizontal scroll
 *
 * ANIMATIONS:
 * -----------
 * 1. slideIn: Toast notification entrance
 * 2. shimmer: Skeleton loader gradient movement
 *
 * DEPENDENCIES:
 * -------------
 * - Bootstrap 5.3.2 (loaded before this file)
 * - Bootstrap Icons 1.11.1 (for icons)
 * - Google Fonts: Roboto (system font fallback)
 *
 * USAGE:
 * ------
 * This file is loaded in all HTML pages:
 *   <link href="/css/styles.css" rel="stylesheet">
 *
 * After Bootstrap CSS but before page-specific styles.
 */

/* ==============================================================================
   CSS CUSTOM PROPERTIES (Variables)
   ============================================================================== */

:root {
    --primary-color: #2874f0;
    --primary-dark: #1a5dc8;
    --secondary-color: #ff9f00;
    --success-color: #388e3c;
    --danger-color: #dc3545;
    --text-dark: #212121;
    --text-muted: #878787;
    --bg-light: #f1f3f6;
    --white: #ffffff;
    --border-color: #e0e0e0;
    --shadow: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-hover: 0 4px 12px rgba(0,0,0,0.15);
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    min-height: 100vh;
}

/* ==============================================================================
   NAVIGATION STYLES

   Navbar with gradient background matching Flipkart design.
   Includes search bar, cart badge, and user dropdown.
   ============================================================================== */
.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.navbar-custom {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 0.5rem 1rem;
}

.navbar-custom .nav-link {
    color: rgba(255,255,255,0.9) !important;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: color 0.2s;
}

.navbar-custom .nav-link:hover {
    color: #ffffff !important;
}

.search-bar {
    max-width: 500px;
    width: 100%;
}

.search-bar .form-control {
    border-radius: 4px 0 0 4px;
    border: none;
    padding: 0.6rem 1rem;
}

.search-bar .btn {
    border-radius: 0 4px 4px 0;
    background: var(--secondary-color);
    border: none;
    padding: 0.6rem 1.2rem;
}

.cart-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    font-size: 0.7rem;
    padding: 0.25rem 0.4rem;
}

/* Search Dropdown - Google/Flipkart Style */
.search-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border-radius: 0 0 8px 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 1000;
    overflow: hidden;
}

.search-suggestion {
    display: flex;
    align-items: center;
    padding: 10px 16px;
    cursor: pointer;
    transition: background-color 0.1s;
    text-decoration: none;
    color: var(--text-dark);
}

.search-suggestion:hover,
.search-suggestion.active {
    background-color: #f1f3f4;
}

.search-suggestion i {
    color: var(--text-muted);
    font-size: 1rem;
    width: 24px;
    margin-right: 12px;
    text-align: center;
}

.search-suggestion .suggestion-text {
    flex: 1;
    font-size: 0.95rem;
}

.search-suggestion .suggestion-text strong {
    font-weight: 600;
}

.search-suggestion .suggestion-category {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-left: 8px;
    padding: 2px 8px;
    background: #f5f5f5;
    border-radius: 4px;
}

.search-suggestion .arrow-icon {
    color: var(--text-muted);
    font-size: 0.85rem;
    opacity: 0;
    transition: opacity 0.15s;
}

.search-suggestion:hover .arrow-icon {
    opacity: 1;
}

.search-dropdown-header {
    padding: 8px 16px;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: #fafafa;
    border-bottom: 1px solid var(--border-color);
}

/* Search Results List View */
.search-results-list .product-list-item {
    display: flex;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 1rem;
    margin-bottom: 1rem;
    transition: box-shadow 0.2s;
}

.search-results-list .product-list-item:hover {
    box-shadow: var(--shadow-hover);
}

.search-results-list .product-list-item img {
    width: 150px;
    height: 150px;
    object-fit: contain;
    margin-right: 1.5rem;
    background: #fafafa;
    border-radius: 4px;
}

.search-results-list .product-list-item .product-info {
    flex: 1;
}

.search-results-list .product-list-item .product-title {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.search-results-list .product-list-item .product-description {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.search-results-list .product-list-item .product-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
}

.search-results-list .product-list-item .original-price {
    text-decoration: line-through;
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-left: 0.5rem;
}

.search-results-list .product-list-item .discount-badge {
    color: var(--success-color);
    font-size: 0.9rem;
    font-weight: 500;
    margin-left: 0.5rem;
}

.search-results-list .product-list-item .rating {
    background: var(--success-color);
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    font-size: 0.8rem;
    font-weight: 500;
}

.search-results-list .product-list-item .product-actions {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.5rem;
    min-width: 150px;
}

@media (max-width: 768px) {
    .search-results-list .product-list-item {
        flex-direction: column;
    }
    
    .search-results-list .product-list-item img {
        width: 100%;
        height: 200px;
        margin-right: 0;
        margin-bottom: 1rem;
    }
    
    .search-results-list .product-list-item .product-actions {
        flex-direction: row;
        min-width: auto;
        margin-top: 1rem;
    }
}


/* ==============================================================================
   PRODUCT DISPLAY STYLES

   Category bar, product cards (grid), product list (search), and detail page.
   ============================================================================== */

/* Category Bar - Horizontal scrollable list of categories */
.category-bar {
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 0;
}

.category-bar a {
    color: var(--text-dark);
    text-decoration: none;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    white-space: nowrap;
    transition: color 0.2s;
}

.category-bar a:hover {
    color: var(--primary-color);
}

/* Product Cards */
.product-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: box-shadow 0.3s, transform 0.2s;
    height: 100%;
    overflow: hidden;
}

.product-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.product-card .card-img-top {
    height: 200px;
    object-fit: contain;
    padding: 1rem;
    background: #fafafa;
}

.product-card .card-body {
    padding: 1rem;
}

.product-card .product-title {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-dark);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.8em;
}

.product-card .product-price {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
}

.product-card .original-price {
    text-decoration: line-through;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-left: 0.5rem;
}

.product-card .discount-badge {
    color: var(--success-color);
    font-size: 0.85rem;
    font-weight: 500;
}

.product-card .rating {
    background: var(--success-color);
    color: white;
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Product Detail Page */
.product-detail-img {
    max-height: 400px;
    object-fit: contain;
    width: 100%;
    padding: 2rem;
    background: #fafafa;
    border-radius: 8px;
}

.product-thumbnails img {
    width: 60px;
    height: 60px;
    object-fit: contain;
    border: 2px solid transparent;
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 4px;
    transition: border-color 0.2s;
}

.product-thumbnails img:hover,
.product-thumbnails img.active {
    border-color: var(--primary-color);
}

/* ==============================================================================
   CART & CHECKOUT STYLES

   Cart items, quantity selector, order summary, payment methods, addresses.
   ============================================================================== */

/* Cart Page */
.cart-item {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.cart-item img {
    width: 100px;
    height: 100px;
    object-fit: contain;
}

.quantity-selector {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.quantity-selector button {
    width: 32px;
    height: 32px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.quantity-selector input {
    width: 50px;
    text-align: center;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.25rem;
}

/* Order Summary Card */
.order-summary {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 1.5rem;
    position: sticky;
    top: 1rem;
}

.order-summary h5 {
    color: var(--text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
    margin-bottom: 1rem;
}

/* Checkout Page */
.checkout-section {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.checkout-section h5 {
    font-weight: 600;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkout-section h5 .step-number {
    background: var(--primary-color);
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

/* Payment Methods */
.payment-method {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    cursor: pointer;
    transition: border-color 0.2s, background-color 0.2s;
}

.payment-method:hover {
    border-color: var(--primary-color);
    background-color: #f8f9ff;
}

.payment-method.selected {
    border-color: var(--primary-color);
    background-color: #e8f0fe;
}

.payment-method i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

/* Bank Options */
.bank-option {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background-color 0.2s;
}

.bank-option:hover {
    border-color: var(--primary-color);
    background-color: #f8f9ff;
}

.bank-option.selected {
    border-color: var(--primary-color);
    background-color: #e8f0fe;
}

.bank-option i {
    font-size: 1.5rem;
    color: var(--primary-color);
    display: block;
    margin-bottom: 0.5rem;
}

.bank-option span {
    font-size: 0.9rem;
    font-weight: 500;
}

/* UPI App Buttons */
.upi-app-btn.btn-primary {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

/* Address Card */
.address-card {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    cursor: pointer;
    transition: border-color 0.2s;
    position: relative;
}

.address-card:hover {
    border-color: var(--primary-color);
}

.address-card.selected {
    border-color: var(--primary-color);
    background-color: #f8f9ff;
}

.address-card .badge-default {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
}

/* Order Confirmation */
.confirmation-card {
    background: var(--white);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow);
}

.confirmation-icon {
    width: 80px;
    height: 80px;
    background: #e8f5e9;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.confirmation-icon i {
    font-size: 2.5rem;
    color: var(--success-color);
}

/* ==============================================================================
   USER ACCOUNT STYLES

   Profile sidebar, order history, auth pages.
   ============================================================================== */

/* Profile Page */
.profile-sidebar {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.profile-sidebar .list-group-item {
    border: none;
    border-radius: 0;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

.profile-sidebar .list-group-item:last-child {
    border-bottom: none;
}

.profile-sidebar .list-group-item.active {
    background: var(--primary-color);
    color: white;
}

.profile-sidebar .list-group-item i {
    width: 24px;
}

/* Order History */
.order-item {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.order-header {
    background: #fafafa;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.order-body {
    padding: 1rem;
}

/* Auth Pages */
.auth-container {
    min-height: calc(100vh - 60px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.auth-card {
    background: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 2rem;
    width: 100%;
    max-width: 400px;
}

.auth-card h2 {
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-align: center;
}

/* ==============================================================================
   FEEDBACK & STATE STYLES

   Alerts, loading spinners, skeleton loaders, animations.
   ============================================================================== */

/* Alerts and Messages */
.alert-floating {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 1050;
    min-width: 300px;
    animation: slideIn 0.3s ease;
}

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

/* Loading States */
.loading-spinner {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 3rem;
}

.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 4px;
}

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

/* ==============================================================================
   FOOTER STYLES
   ============================================================================== */

/* Footer */
.footer {
    background: #172337;
    color: #878787;
    padding: 2rem 0;
    margin-top: 3rem;
}

.footer h6 {
    color: #878787;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.footer a {
    color: #ffffff;
    text-decoration: none;
    font-size: 0.9rem;
    display: block;
    margin-bottom: 0.5rem;
}

.footer a:hover {
    text-decoration: underline;
}

/* ==============================================================================
   BUTTON & UTILITY STYLES

   Custom button variants, cursor utilities, responsive helpers.
   ============================================================================== */

/* Buttons */
.btn-primary {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

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

.btn-cart {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    color: white;
}

.btn-cart:hover {
    background: #e69200;
    border-color: #e69200;
    color: white;
}

.btn-buy {
    background: #fb641b;
    border-color: #fb641b;
    color: white;
}

.btn-buy:hover {
    background: #e85a18;
    border-color: #e85a18;
    color: white;
}

/* Responsive */
@media (max-width: 768px) {
    .search-bar {
        margin: 0.5rem 0;
        max-width: 100%;
    }

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

    .cart-item {
        flex-direction: column;
    }

    .cart-item img {
        margin-bottom: 1rem;
    }

    .category-bar {
        overflow-x: auto;
        white-space: nowrap;
        -webkit-overflow-scrolling: touch;
    }
}

/* Utilities */
.text-primary-custom {
    color: var(--primary-color) !important;
}

.bg-primary-custom {
    background-color: var(--primary-color) !important;
}

.border-primary-custom {
    border-color: var(--primary-color) !important;
}

.cursor-pointer {
    cursor: pointer;
}

.min-vh-50 {
    min-height: 50vh;
}

/* Clickable elements - pointer cursor */
a,
button,
[role="button"],
[onclick],
.btn,
.nav-link,
.navbar-brand,
.product-card,
.address-card,
.payment-method,
.bank-option,
.cart-item img,
.product-thumbnails img,
.category-bar a,
.list-group-item,
.dropdown-item,
.form-check-input,
.form-check-label,
input[type="radio"],
input[type="checkbox"],
label[for],
.clickable {
    cursor: pointer;
}

/* Disabled elements */
button:disabled,
.btn:disabled,
.disabled {
    cursor: not-allowed;
}

/* Hero Banner */
.hero-banner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 3rem 2rem;
    text-align: center;
    margin-bottom: 1rem;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: white;
    margin: 0;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.hero-tagline {
    font-size: 1.25rem;
    color: rgba(255,255,255,0.9);
    margin: 0.75rem 0 0 0;
    font-weight: 400;
}

@media (max-width: 768px) {
    .hero-banner {
        padding: 2rem 1rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-tagline {
        font-size: 1rem;
    }
}