/* Mobile-Specific Enhancements for Admin Panel */

/* Image Upload Areas */
.image-upload-area, .multi-image-upload {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    background-color: #fafafa;
}

.image-upload-area:hover, .multi-image-upload:hover {
    border-color: var(--primary-color);
    background-color: rgba(102, 126, 234, 0.05);
}

.image-upload-area.drag-active, .multi-image-upload.drag-active {
    border-color: var(--primary-color);
    background-color: rgba(102, 126, 234, 0.1);
}

.upload-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.upload-placeholder svg {
    opacity: 0.5;
}

.upload-placeholder p {
    font-size: 0.875rem;
    font-weight: 500;
}

.upload-instructions {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* Image Gallery */
.image-gallery, .image-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.image-item, .image-preview-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
    background-color: #f9fafb;
}

.image-item img, .image-preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.remove-image, .image-remove-btn {
    position: absolute;
    top: 0.25rem;
    right: 0.25rem;
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    border: none;
    background-color: var(--danger-color);
    color: white;
    font-size: 0.75rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.remove-image:hover, .image-remove-btn:hover {
    background-color: #dc2626;
    transform: scale(1.1);
}

.file-type-indicator {
    position: absolute;
    bottom: 0.25rem;
    left: 0.25rem;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 0.125rem 0.25rem;
    border-radius: 0.25rem;
    font-size: 0.625rem;
    font-weight: 500;
}

/* Progress Bars */
.upload-progress-container {
    margin-top: 1rem;
    display: none;
}

.upload-progress-container.active {
    display: block;
}

.progress-item {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 0.5rem;
}

.progress-filename {
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.progress-bar-container {
    width: 100%;
    height: 0.5rem;
    background-color: #e5e7eb;
    border-radius: 0.25rem;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-bar-fill {
    height: 100%;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
    width: 0%;
}

.progress-status {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-align: right;
}

/* Batch Upload Controls */
.batch-upload-controls {
    display: flex;
    justify-content: space-between;
    margin-top: 1rem;
    gap: 0.5rem;
}

/* Links Container */
.links-container {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.link-item {
    display: grid;
    grid-template-columns: 1fr 2fr auto;
    gap: 0.5rem;
    align-items: end;
    padding: 0.75rem;
    background-color: #f9fafb;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

/* File Info */
.file-info {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--success-color);
}

.file-preview {
    margin-top: 0.5rem;
}

.file-preview a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.875rem;
}

.file-preview a:hover {
    text-decoration: underline;
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}

.empty-state svg {
    width: 3rem;
    height: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-cv-requests {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

.empty-cv-requests svg {
    width: 2.5rem;
    height: 2.5rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Swipe Indicator */
.swipe-indicator {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 0.75rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    z-index: 1000;
    transition: opacity 0.3s ease;
}

.swipe-hint {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Update Notification */
.update-notification {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: var(--success-color);
    color: white;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    box-shadow: var(--shadow-lg);
    transform: translateY(100%);
    transition: transform 0.3s ease;
    z-index: 1000;
}

.update-notification.show {
    transform: translateY(0);
}

/* Remove Field Button */
.remove-field-btn {
    background: none;
    border: none;
    color: var(--danger-color);
    font-size: 1rem;
    cursor: pointer;
    padding: 0;
    margin-left: 0.5rem;
    width: 1.25rem;
    height: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.remove-field-btn:hover {
    background-color: var(--danger-color);
    color: white;
}

/* Mobile Responsive Adjustments */
@media (max-width: 768px) {
    .image-upload-area, .multi-image-upload {
        padding: 1.5rem 1rem;
    }
    
    .upload-placeholder p {
        font-size: 0.8125rem;
    }
    
    .image-gallery, .image-preview-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: 0.75rem;
    }
    
    .link-item {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .batch-upload-controls {
        flex-direction: column;
    }
    
    .swipe-indicator {
        bottom: 1rem;
        left: 1rem;
        right: 1rem;
        transform: none;
    }
    
    .update-notification {
        bottom: 1rem;
        right: 1rem;
        left: 1rem;
    }
}

@media (max-width: 480px) {
    .image-upload-area, .multi-image-upload {
        padding: 1rem 0.75rem;
    }
    
    .upload-placeholder svg {
        width: 2rem;
        height: 2rem;
    }
    
    .upload-placeholder p {
        font-size: 0.75rem;
    }
    
    .image-gallery, .image-preview-grid {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
        gap: 0.5rem;
    }
    
    .remove-image, .image-remove-btn {
        width: 1.25rem;
        height: 1.25rem;
        font-size: 0.625rem;
    }
    
    .progress-item {
        padding: 0.75rem;
    }
    
    .progress-filename {
        font-size: 0.8125rem;
    }
}

/* Touch-Friendly Enhancements */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 44px;
        padding: 0.75rem 1rem;
    }
    
    .btn-small {
        min-height: 36px;
        padding: 0.5rem 0.75rem;
    }
    
    .nav-tab {
        min-height: 44px;
        padding: 0.75rem 1rem;
    }
    
    .remove-image, .image-remove-btn {
        width: 2rem;
        height: 2rem;
        font-size: 0.875rem;
    }
    
    .remove-field-btn {
        width: 1.5rem;
        height: 1.5rem;
        font-size: 1.125rem;
    }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .upload-placeholder svg,
    .btn svg,
    .nav-tab svg {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Landscape Mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .admin-header {
        padding: 0.5rem 1rem;
    }
    
    .header-content {
        flex-direction: row;
        align-items: center;
    }
    
    .header-content h1 {
        font-size: 1rem;
    }
    
    .admin-main {
        padding: 1rem;
    }
    
    .section-header {
        flex-direction: row;
        align-items: center;
    }
}

/* Tablet Specific */
@media (min-width: 768px) and (max-width: 1024px) {
    .form-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .item-form, .enhanced-form {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pdf-stats-grid, .cv-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .filters-row {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .image-gallery, .image-preview-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }
}

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

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

.slide-in-right {
    animation: slideInRight 0.3s ease-out;
}

.slide-in-left {
    animation: slideInLeft 0.3s ease-out;
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 1rem;
    height: 1rem;
    margin: -0.5rem 0 0 -0.5rem;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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