/* نظام السلة المتقدم - أنماط CSS */

/* متغيرات CSS للألوان والتأثيرات */
:root {
    --primary-blue: #ffa726;
    --secondary-blue: linear-gradient(135deg, #ff6b6b 0%, #ff8e53 50%, #ffa726 100%);
    --success-green: #10b981;
    --danger-red: #ef4444;
    --warning-orange: #f59e0b;
    
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #ffffff;
    
    --bg-glass: rgba(255, 255, 255, 0.1);
    --bg-glass-strong: rgba(255, 255, 255, 0.15);
    --bg-glass-light: rgba(255, 255, 255, 0.05);
    --bg-glass-medium: rgba(255, 255, 255, 0.12);
    
    --border-primary: rgba(255, 255, 255, 0.2);
    --border-accent: rgba(255, 255, 255, 0.3);
    
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    --gradient-wave: linear-gradient(135deg, #ff6b6b 0%, #ffa726 100%);
    --gradient-primary: linear-gradient(135deg, #ff6b6b 0%, #ff8e53 50%, #ffa726 100%);
    
    --shadow-soft: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-medium: 0 10px 30px rgba(0, 0, 0, 0.12);
    --shadow-strong: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* السلة الجانبية */
.cart-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
}

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

.cart-sidebar {
    position: fixed;
    top: 0;
    left: -400px;
    width: 400px;
    height: 100vh;
    background: var(--bg-glass-strong);
    backdrop-filter: blur(20px);
    border-right: 1px solid rgba(59, 130, 246, 0.2);
    z-index: 9999;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-strong);
}

.cart-sidebar.open {
    left: 0;
}

.cart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid rgba(59, 130, 246, 0.1);
    background: rgba(59, 130, 246, 0.05);
}

.cart-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cart-header h3 i {
    color: var(--primary-blue);
}

.cart-close {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
}

.cart-close:hover {
    background: #ef4444;
    color: white;
    transform: scale(1.1);
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    padding: 0;
    scrollbar-width: thin;
    scrollbar-color: rgba(59, 130, 246, 0.3) transparent;
}

.cart-items::-webkit-scrollbar {
    width: 6px;
}

.cart-items::-webkit-scrollbar-track {
    background: transparent;
}

.cart-items::-webkit-scrollbar-thumb {
    background: rgba(59, 130, 246, 0.3);
    border-radius: 3px;
}

.cart-items::-webkit-scrollbar-thumb:hover {
    background: rgba(59, 130, 246, 0.5);
}

.cart-footer {
    padding: 1.5rem;
    border-top: 1px solid rgba(59, 130, 246, 0.1);
    background: rgba(59, 130, 246, 0.02);
}

.cart-total {
    text-align: center;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.cart-total span {
    color: var(--primary-blue);
}

.cart-actions {
    display: flex;
    gap: 0.5rem;
}

.cart-actions .btn-secondary,
.cart-actions .btn-primary {
    flex: 1;
    padding: 0.75rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.cart-actions .btn-secondary {
    background: rgba(107, 114, 128, 0.1);
    color: var(--text-secondary);
    border: 1px solid rgba(107, 114, 128, 0.2);
}

.cart-actions .btn-secondary:hover {
    background: rgba(107, 114, 128, 0.2);
    transform: translateY(-1px);
}

.cart-actions .btn-primary {
    background: var(--gradient-wave);
    color: white;
}

.cart-actions .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
}

/* زر السلة في الهيدر */
.cart-icon {
    position: relative;
    padding: 0.75rem;
    border: none;
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-smooth);
    border-radius: 12px;
}

.cart-icon:hover {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary-blue);
    transform: scale(1.05);
}

.cart-count {
    position: absolute;
    top: 0.25rem;
    right: 0.25rem;
    width: 20px;
    height: 20px;
    background: #ef4444;
    color: white;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 700;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(239, 68, 68, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
    }
}

/* رابط صفحة السلة في السلة الجانبية */
.view-cart-page {
    display: block;
    text-align: center;
    padding: 0.75rem;
    margin: 1rem;
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary-blue);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: var(--transition-smooth);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.view-cart-page:hover {
    background: var(--primary-blue);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-soft);
}

/* تحسينات لأزرار المنتجات */
.product-card .add-to-cart-btn {
    position: relative;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.product-card .add-to-cart-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-smooth);
}

.product-card .add-to-cart-btn:hover::before {
    left: 100%;
}

.product-card .add-to-cart-btn.quantity-mode {
    background: rgba(16, 185, 129, 0.1) !important;
    border: 1px solid var(--success-green) !important;
    color: var(--success-green) !important;
}

.product-card .add-to-cart-btn.quantity-mode:hover {
    background: rgba(16, 185, 129, 0.2) !important;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(16, 185, 129, 0.3);
}

/* تحسينات عامة للتفاعل */
.glass-strong {
    background: var(--bg-glass-strong);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* التأثيرات المتحركة */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.cart-item-sidebar {
    animation: slideInLeft 0.3s ease-out;
}

.toast {
    animation: slideInRight 0.3s ease-out;
}

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

/* استجابة للشاشات الصغيرة */
@media (max-width: 768px) {
    .cart-sidebar {
        width: 100%;
        left: -100%;
    }
    
    .cart-sidebar.open {
        left: 0;
    }
    
    .cart-header {
        padding: 1rem;
    }
    
    .cart-footer {
        padding: 1rem;
    }
    
    .cart-actions {
        flex-direction: column;
    }
    
    .cart-actions .btn-secondary,
    .cart-actions .btn-primary {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .cart-sidebar {
        width: 100vw;
        left: -100vw;
    }
}

/* تحسينات إضافية للتحكم في الكمية */
.quantity-controls-inline {
    background: rgba(59, 130, 246, 0.1);
    border-radius: 8px;
    padding: 0.25rem;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.quantity-btn-inline {
    background: var(--primary-blue);
    border: none;
    color: white;
    width: 28px;
    height: 28px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.quantity-btn-inline:hover {
    background: var(--secondary-blue);
    transform: scale(1.1);
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.quantity-btn-inline:active {
    transform: scale(0.95);
}

.quantity-display-inline {
    min-width: 30px;
    text-align: center;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
    user-select: none;
}

/* تأثيرات خاصة للتوست */
.toast {
    font-family: 'Cairo', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    border-radius: 12px;
    box-shadow: var(--shadow-medium);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* تحسينات للمتصفحات المختلفة */
.cart-sidebar {
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
}

.cart-items {
    -webkit-overflow-scrolling: touch;
}

/* تحسينات الأداء */
.cart-item-sidebar,
.quantity-btn-inline,
.cart-close,
.cart-icon {
    will-change: transform;
}

/* حالات التحميل */
.cart-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    color: var(--text-secondary);
}

.cart-loading i {
    animation: spin 1s linear infinite;
    margin-left: 0.5rem;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}