/* Megakarts E-commerce CSS - Mobile First Design */

/* CSS Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Root Variables */
:root {
    --primary-color: #8b5cf6;
    --primary-light: #a78bfa;
    --primary-dark: #7c3aed;
    --secondary-color: #ec4899;
    --accent-gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #ffffff;
    --bg-tertiary: #ffffff;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition: all 0.3s ease;
}

/* Base Styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 14px;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 3px;
}

/* Header Styles */
.header {
    background: var(--bg-primary);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    gap: 12px;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-image {
    height: 32px;
    width: auto;
    max-width: 150px;
    object-fit: contain;
    margin-left:6px;
}

.search-container {
    flex: 1;
    max-width: 400px;
    position: relative;
}

.search-bar {
    width: 100%;
    padding: 10px 40px 10px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 14px;
    transition: var(--transition);
}

.search-bar:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.search-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px;
}

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

.nav-links-desktop {
    display: none;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 8px 12px;
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

.nav-link.active {
    background: var(--primary-color);
    color: white;
}

.cart-badge, .notification-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: #ef4444;
    color: white;
    font-size: 10px;
    font-weight: 600;
    padding: 2px 4px;
    border-radius: 10px;
    min-width: 16px;
    text-align: center;
}

.wallet-points {
    background: var(--accent-gradient);
    color: white;
    padding: 6px 12px;
    border-radius: var(--radius-lg);
    font-size: 12px;
    font-weight: 600;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-menu {
    display: none;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
}

.nav-menu.active {
    display: block;
}

.nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
}

.nav-item {
    border-bottom: 1px solid var(--border-color);
}

.nav-link {
    display: block;
    padding: 16px;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition);
}

.nav-link:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

.nav-link.active {
    background: var(--bg-secondary);
    color: var(--primary-color);
    font-weight: 600;
}

.menu-toggle {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-primary);
}

/* Mobile Bottom Navigation */
.bottom-nav {
    display: flex;
    justify-content: space-around;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding-bottom: env(safe-area-inset-bottom);
}

.bottom-nav-item {
    flex: 1;
    text-align: center;
    padding: 8px 4px;
    text-decoration: none;
    color: var(--text-secondary);
    transition: var(--transition);
}

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

.bottom-nav-icon {
    font-size: 20px;
    display: block;
    margin-bottom: 2px;
}

.bottom-nav-label {
    font-size: 10px;
}

/* Product Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin: 16px 0;
}

.product-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-decoration: none;
    color: var(--text-primary);
    position: relative;
}

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

.product-image-container {
    position: relative;
    padding-top: 100%;
    background: var(--bg-tertiary);
}

.product-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: scale-down;
}

.free-delivery-badge {
    position: absolute;
    top: 19px;
    left: -27px;
    background: var(--success-color);
    color: white;
    padding: 0px 20px;
    font-size: 10px;
    font-weight: 600;
    transform: rotate(-45deg);
    z-index: 1;
}

.product-info {
     padding: 25px; 
}

.product-title {
    font-size: 13px;
    font-weight: 500;
    line-height: 1.4;
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-price {
    font-size: 16px;
    font-weight: bold;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: var(--text-secondary);
}

.stars {
    color: var(--warning-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    min-height: 44px;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 12px;
    min-height: 36px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
    min-height: 52px;
}

.btn-block {
    width: 100%;
}

/* Forms */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.form-select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    background: white;
    cursor: pointer;
}

.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    resize: vertical;
    min-height: 100px;
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    font-size: 14px;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

/* Cart Styles */
.cart-item {
    display: flex;
    gap: 12px;
    padding: 16px;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    box-shadow: var(--shadow-sm);
}

.cart-item-image {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius-md);
}

.cart-item-details {
    flex: 1;
}

.cart-item-title {
    font-weight: 500;
    margin-bottom: 4px;
}

.cart-item-price {
    color: var(--text-secondary);
    font-size: 14px;
}

.quantity-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
}

.quantity-btn {
    width: 28px;
    height: 28px;
    border: 1px solid var(--border-color);
    background: white;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.quantity-input {
    width: 40px;
    text-align: center;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 4px;
}

/* Main Content Padding */
.main-content {
    padding-bottom: 80px;
    /* padding-top: 16px; */
}

/* Loading Spinner */
.spinner {
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.hidden { display: none; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.p-0 { padding: 0; }
.p-1 { padding: 8px; }
.p-2 { padding: 16px; }
.p-3 { padding: 24px; }

/* Tablet Styles */
@media (min-width: 768px) {
    .container {
        padding: 0 24px;
    }
    
    .nav-links-desktop {
        display: flex;
    }
    
    .menu-toggle {
        display: none;
    }
    
    .nav-menu {
        display: none;
    }
    
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }
    
    .bottom-nav {
        display: none;
    }
    
    .main-content {
        padding-bottom: 0;
    }
    
    .header-top {
        padding: 16px 0;
    }
    
    .nav-menu {
        display: block;
        background: transparent;
        border-top: none;
    }
    
    .nav-list {
        flex-direction: row;
        gap: 24px;
    }
    
    .nav-item {
        border-bottom: none;
    }
    
    .nav-link {
        padding: 8px 0;
    }
    
    .menu-toggle {
        display: none;
    }
}

/* Desktop Styles */
@media (min-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 20px;
    }
    
    .header-top {
        padding: 20px 0;
    }
    
    .search-container {
        max-width: 500px;
    }
    
    .product-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-lg);
    }
}

/* Large Desktop */
@media (min-width: 1280px) {
    .products-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

/* PWA Styles */
@media (display-mode: standalone) {
    .header {
        padding-top: env(safe-area-inset-top);
    }
    
    .bottom-nav {
        padding-bottom: calc(env(safe-area-inset-bottom) + 8px);
    }
}

/* Print Styles */
@media print {
    .header,
    .bottom-nav,
    .btn {
        display: none !important;
    }
    
    .main-content {
        padding: 0 !important;
    }
}

/* Loading Spinner Overlay */
.loading-overlay {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    background: rgba(255, 255, 255, 0.95) !important;
    display: none !important;
    justify-content: center !important;
    align-items: center !important;
    z-index: 99999 !important;
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

.loading-content {
    text-align: center;
    animation: fadeIn 0.3s ease;
    max-width: 200px;
}

.loading-logo {
    margin-bottom: 20px;
}

.loading-logo-img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    animation: pulse 2s infinite;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    margin: 0 auto 20px;
    border: 4px solid #f3f4f6;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-text {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    margin-top: 10px;
    animation: fadeInUp 0.5s ease;
}

/* Loading Animations */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

@keyframes fadeInUp {
    from { 
        opacity: 0;
        transform: translateY(10px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Mobile Responsive Loading Spinner */
@media (max-width: 768px) {
    .loading-logo-img {
        width: 60px;
        height: 60px;
    }
    
    .loading-spinner {
        width: 30px;
        height: 30px;
        border-width: 3px;
    }
    
    .loading-text {
        font-size: 14px;
    }
}