/* ===== MODAL STYLES ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(5px);
}

.modal-content {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    max-width: 900px;
    max-height: 90vh;
    width: 90%;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--gray-medium);
    z-index: 10001;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--gray-light);
    color: var(--dark-primary);
}

.modal-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-light);
    background: linear-gradient(135deg, 
        rgba(0, 102, 204, 0.05), 
        rgba(0, 168, 255, 0.05));
}

.modal-header h3 {
    font-size: 1.75rem;
    color: var(--dark-primary);
    margin-bottom: var(--spacing-xs);
}

.modal-subtitle {
    color: var(--gray-medium);
    font-size: 1.125rem;
    margin: 0;
}

.modal-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    max-height: 60vh;
    overflow-y: auto;
}

.product-image-section {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-light);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    min-height: 300px;
}

.modal-product-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: var(--border-radius-md);
}

.product-details-section h4 {
    color: var(--dark-primary);
    margin-bottom: var(--spacing-sm);
    margin-top: var(--spacing-md);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: var(--spacing-xs);
    display: inline-block;
}

.product-details-section h4:first-child {
    margin-top: 0;
}

.modal-features {
    list-style: none;
    padding: 0;
    margin-bottom: var(--spacing-md);
}

.modal-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    color: var(--gray-dark);
}

.modal-features li::before {
    content: '✓';
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.125rem;
}

.modal-specs {
    margin-bottom: var(--spacing-lg);
}

.spec-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--gray-light);
}

.spec-row:last-child {
    border-bottom: none;
}

.spec-label {
    font-weight: 500;
    color: var(--dark-primary);
}

.spec-row span:last-child {
    color: var(--gray-dark);
}

.modal-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.modal-actions .btn {
    flex: 1;
}

/* ===== NOTIFICATIONS ===== */
.notification {
    position: fixed;
    top: 20px;
    right: -400px;
    background: var(--white);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 10000;
    transition: right 0.3s ease;
    max-width: 350px;
    border-left: 4px solid var(--primary-color);
}

.notification.show {
    right: 20px;
}

.notification-success {
    border-left-color: #28a745;
}

.notification-error {
    border-left-color: #dc3545;
}

.notification-info {
    border-left-color: var(--primary-color);
}

.notification-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
}

.notification-message {
    color: var(--dark-primary);
    line-height: 1.4;
}

.notification-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--gray-medium);
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.notification-close:hover {
    background: var(--gray-light);
    color: var(--dark-primary);
}

/* ===== ANIMATIONS ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.animate-on-scroll.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animation delays */
.feature-card:nth-child(1) { transition-delay: 0.1s; }
.feature-card:nth-child(2) { transition-delay: 0.2s; }
.feature-card:nth-child(3) { transition-delay: 0.3s; }
.feature-card:nth-child(4) { transition-delay: 0.4s; }

.product-card:nth-child(1) { transition-delay: 0.1s; }
.product-card:nth-child(2) { transition-delay: 0.3s; }

.application-card:nth-child(1) { transition-delay: 0.1s; }
.application-card:nth-child(2) { transition-delay: 0.2s; }
.application-card:nth-child(3) { transition-delay: 0.3s; }
.application-card:nth-child(4) { transition-delay: 0.4s; }

/* ===== MOBILE MENU STYLES ===== */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        transition: transform 0.3s ease;
        z-index: 999;
    }
    
    .nav-menu.active {
        display: flex;
        transform: translateY(0);
    }
    
    .nav-item {
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }
    
    .nav-link {
        padding: var(--spacing-sm);
        display: block;
        text-align: center;
        border-radius: var(--border-radius-md);
        transition: all var(--transition-fast);
    }
    
    .nav-link:hover {
        background: var(--gray-light);
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: var(--gray-light);
        margin-top: var(--spacing-sm);
        border-radius: var(--border-radius-md);
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .modal-body {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .modal-actions {
        flex-direction: column;
    }
    
    .notification {
        right: -350px;
        max-width: 320px;
        margin-right: 10px;
    }
    
    .notification.show {
        right: 10px;
    }
}

/* ===== LOADING STATES ===== */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-light);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 0.8s ease-in-out infinite;
}

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

/* ===== ACCESSIBILITY ENHANCEMENTS ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus states for keyboard navigation */
.btn:focus,
.nav-link:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0056b3;
        --gray-medium: #495057;
        --gray-dark: #212529;
    }
}