/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    line-height: 1;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

/* Removed - keep buttons same size when scrolled */

.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: left var(--transition-normal);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--text-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--text-white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-outline:active {
    transform: translateY(-1px);
}

.btn-full {
    width: 100%;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2c5aa0;
    box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.1);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #333;
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

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

.modal-content {
    background: white;
    border-radius: 12px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform 0.3s;
}

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

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

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid #eee;
}

.modal-header h3 {
    margin: 0;
    color: #2c5aa0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #999;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    color: #333;
}

.modal-body {
    padding: 1.5rem;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin: 2rem 0;
}

.pagination button {
    padding: 0.5rem 1rem;
    border: 1px solid #ddd;
    background: white;
    color: #666;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
}

.pagination button:hover:not(:disabled) {
    background: #f8f9fa;
    border-color: #2c5aa0;
}

.pagination button.active {
    background: #2c5aa0;
    color: white;
    border-color: #2c5aa0;
}

.pagination button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Loading */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

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

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #2c5aa0;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 100px;
    right: 20px;
    z-index: 4000;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    background: white;
    border-radius: 8px;
    padding: 1rem 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #2c5aa0;
    min-width: 300px;
    transform: translateX(100%);
    transition: transform 0.3s;
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    border-left-color: #27ae60;
}

.toast.error {
    border-left-color: #e74c3c;
}

.toast.warning {
    border-left-color: #f39c12;
}

.toast-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.toast-title {
    font-weight: 600;
    color: #333;
}

.toast-close {
    background: none;
    border: none;
    cursor: pointer;
    color: #999;
    font-size: 1.2rem;
}

.toast-message {
    color: #666;
    font-size: 0.9rem;
}

/* Product/Blog Detail */
.detail-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.detail-images {
    position: relative;
}

.detail-main-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.detail-thumbnails {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
}

.detail-thumbnail {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 4px;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.detail-thumbnail:hover,
.detail-thumbnail.active {
    opacity: 1;
}

.detail-info h2 {
    color: #2c5aa0;
    margin-bottom: 1rem;
}

.detail-price {
    font-size: 2rem;
    font-weight: 700;
    color: #e74c3c;
    margin-bottom: 1rem;
}

.detail-specs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.spec-item {
    text-align: center;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 8px;
}

.spec-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2c5aa0;
}

.spec-label {
    font-size: 0.9rem;
    color: #666;
    margin-top: 0.5rem;
}

.detail-description {
    line-height: 1.6;
    color: #666;
    margin-bottom: 2rem;
}

.detail-actions {
    display: flex;
    gap: 1rem;
}

/* Image Gallery */
.image-gallery {
    position: relative;
    margin-bottom: 2rem;
}

.gallery-main {
    position: relative;
    margin-bottom: 1rem;
}

.gallery-main img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 8px;
}

.gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
}

.gallery-nav:hover {
    background: rgba(0, 0, 0, 0.7);
}

.gallery-prev {
    left: 10px;
}

.gallery-next {
    right: 10px;
}

.gallery-thumbnails {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding: 0.5rem 0;
}

.gallery-thumbnail {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 4px;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.3s;
    border: 2px solid transparent;
}

.gallery-thumbnail:hover,
.gallery-thumbnail.active {
    opacity: 1;
    border-color: #2c5aa0;
}

/* Responsive */
@media (max-width: 768px) {
    .detail-content {
        grid-template-columns: 1fr;
    }
    
    .detail-specs {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .detail-actions {
        flex-direction: column;
    }
    
    .toast-container {
        left: 20px;
        right: 20px;
    }
    
    .toast {
        min-width: auto;
    }
    
    .modal-content {
        width: 95%;
    }
}