/* File Upload Components CSS */

/* File input hidden styling */
.file-input-hidden {
    display: none;
}

/* File upload button styling - with Bootstrap override */
.file-upload-btn {
    background: #f8f9fa !important;
    border: none !important;
    color: #667eea !important;
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 2.25rem;
    height: 4rem;
    border-radius: 0;
    padding: 12px 16px;
    flex-shrink: 0;
}

.file-upload-btn:hover,
.file-upload-btn:focus {
    background: #667eea !important;
    color: white !important;
    border-color: #667eea !important;
    outline: none;
    box-shadow: none;
    transform: none;
}

.file-upload-btn:active {
    background: #5a67d8 !important;
    border-color: #5a67d8 !important;
    transform: translateY(1px);
}

.file-upload-btn i {
    font-size: 14px;
    pointer-events: none;
}

/* Input group modifications for file upload */
.chat-input-area .input-group {
    border-radius: 25px;
    overflow: hidden;
}

.chat-input-area .form-control {
    border: none;
    padding: 12px 16px;
    font-size: 15px;
    background: #f8f9fa;
}

.chat-input-area .form-control:focus {
    background: white;
    box-shadow: none;
    border-color: transparent;
}

.chat-input-area .input-group-append {
    display: flex;
    align-items: stretch;
}

.chat-input-area .input-group-append .btn {
    border: none;
    border-radius: 0;
}

.chat-input-area .btn-send {
    background: #667eea;
    color: white;
    border: none;
    padding: 12px 20px;
    font-weight: 600;
    min-width: 50px;
}

.chat-input-area .btn-send:hover {
    background: #5a67d8;
}

/* File preview styling */
.file-preview {
    margin: 10px 0;
    padding: 12px;
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    animation: slideDown 0.3s ease;
}

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

.preview-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
}

.file-info .file-icon {
    font-size: 20px;
}

.file-info .file-name {
    font-weight: 500;
    color: #333;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-info .file-size {
    font-size: 12px;
    color: #666;
    background: #e9ecef;
    padding: 2px 6px;
    border-radius: 4px;
}

.btn-remove-file {
    background: none;
    border: none;
    color: #dc3545;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.btn-remove-file:hover {
    background: #dc3545;
    color: white;
}

/* File upload progress styling */
.file-upload-progress {
    margin: 10px 0;
    padding: 12px;
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    animation: slideDown 0.3s ease;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: #e9ecef;
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    width: 0%;
    transition: width 0.3s ease;
    border-radius: 3px;
}

.progress-text {
    font-size: 14px;
    color: #666;
    display: flex;
    align-items: center;
    gap: 8px;
}

.progress-text::before {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid #667eea;
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Drag and drop styling */
.chat-input-area.drag-over {
    background: rgba(102, 126, 234, 0.1);
    border: 2px dashed #667eea;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.chat-input-area.drag-over::after {
    content: 'Drop file here to upload';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #667eea;
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    pointer-events: none;
    z-index: 10;
}

/* Message display for file attachments */
.message-file {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px;
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 12px;
    margin: 8px 0;
    max-width: 400px;
    transition: all 0.2s ease;
}

.message-file:hover {
    background: #f1f3f4;
    border-color: #dee2e6;
}

/* File thumbnail styling */
.message-file .file-thumbnail {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    border-radius: 8px;
    overflow: hidden;
    background: #fff;
    border: 1px solid #e9ecef;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.message-file .file-thumbnail:hover {
    border-color: #667eea;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.15);
}

.message-file .file-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 6px;
}

.message-file .file-thumbnail i {
    font-size: 20px;
    color: #6c757d;
}

/* File icon styling */
.message-file > i {
    flex-shrink: 0;
    font-size: 24px;
    color: #6c757d;
    margin-top: 2px;
}

.message-file.file-type-image > i {
    color: #007bff;
}

.message-file.file-type-video > i {
    color: #dc3545;
}

.message-file.file-type-document > i {
    color: #17a2b8;
}

.message-file.file-type-archive > i {
    color: #ffc107;
}

.message-file .file-details {
    flex: 1;
    min-width: 0;
}

.message-file .file-name {
    font-weight: 500;
    color: #333;
    font-size: 14px;
    line-height: 1.3;
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 200px;
}

.message-file .file-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: #6c757d;
    flex-wrap: wrap;
}

.message-file .compression-info {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 6px;
    background: #e8f5e8;
    color: #28a745;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
}

.message-file .compression-info i {
    font-size: 10px;
}

.message-file .file-actions {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.message-file .file-download-btn,
.message-file .file-view-btn {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
    white-space: nowrap;
}

.message-file .file-download-btn {
    background: #667eea;
    color: white;
}

.message-file .file-download-btn:hover {
    background: #5a67d8;
    color: white;
    text-decoration: none;
    transform: translateY(-1px);
}

.message-file .file-view-btn {
    background: #17a2b8;
    color: white;
}

.message-file .file-view-btn:hover {
    background: #138496;
    color: white;
    transform: translateY(-1px);
}

/* Image preview in messages */
.message-image {
    max-width: 250px;
    margin: 8px 0;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.message-image img {
    width: 100%;
    height: auto;
    display: block;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.message-image img:hover {
    transform: scale(1.02);
}

/* Thumbnail styling */
.file-thumbnail {
    width: 48px;
    height: 48px;
    border-radius: 6px;
    overflow: hidden;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8f9fa;
    border: 1px solid #e9ecef;
}

.file-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .file-info .file-name {
        max-width: 120px;
    }
    
    .message-file {
        max-width: 100%;
        padding: 10px;
        flex-direction: column;
        gap: 8px;
    }
    
    .message-file .file-thumbnail {
        align-self: flex-start;
    }
    
    .message-file .file-name {
        max-width: none;
    }
    
    .message-file .file-actions {
        flex-direction: row;
        align-self: flex-start;
        gap: 4px;
    }
    
    .message-file .file-download-btn, 
    .message-file .file-view-btn {
        font-size: 11px;
        padding: 4px 8px;
    }
    
    .chat-input-area .input-group {
        flex-direction: row;
        border-radius: 12px;
        gap: 8px;
    }
    
    .chat-input-area .input-group-append {
        width: auto;
        margin-top: 0;
    }
    
    .chat-input-area .btn-send {
        width: auto;
        border-radius: 8px;
    }
    
    .file-upload-btn {
        width: auto;
        margin-right: 0;
    }
}

/* Loading states */
.file-uploading {
    opacity: 0.7;
    pointer-events: none;
}

.file-uploading .progress-text::after {
    content: '...';
    animation: dots 1.5s infinite;
}

@keyframes dots {
    0%, 20% { opacity: 0; }
    50% { opacity: 1; }
    80%, 100% { opacity: 0; }
}

/* Error states */
.file-error {
    border-color: #dc3545;
    background: #f8d7da;
    color: #721c24;
}

.file-error .file-icon {
    color: #dc3545;
}

/* Success states */
.file-success {
    border-color: #28a745;
    background: #d4edda;
    color: #155724;
}

.file-success .file-icon {
    color: #28a745;
}

/* Compression indicator */
.compression-info {
    font-size: 11px;
    color: #6c757d;
    margin-top: 4px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.compression-info i {
    font-size: 10px;
}

.compression-saved {
    color: #28a745;
}

.compression-warning {
    color: #ffc107;
}

/* File type specific styling */
.file-type-image .file-thumbnail {
    border-color: #007bff;
    background: #f0f8ff;
}

.file-type-video .file-thumbnail {
    border-color: #dc3545;
    background: #fff5f5;
}

.file-type-document .file-thumbnail {
    border-color: #17a2b8;
    background: #f0fcff;
}

.file-type-archive .file-thumbnail {
    border-color: #ffc107;
    background: #fffdf0;
}

.file-type-image .message-file {
    background: linear-gradient(135deg, #e3f2fd 0%, #f3e5f5 100%);
    border-color: #2196f3;
}

.file-type-video .message-file {
    background: linear-gradient(135deg, #ffebee 0%, #fce4ec 100%);
    border-color: #f44336;
}

.file-type-document .message-file {
    background: linear-gradient(135deg, #e8f5e8 0%, #f1f8e9 100%);
    border-color: #4caf50;
}

.file-type-archive .message-file {
    background: linear-gradient(135deg, #fff8e1 0%, #fffde7 100%);
    border-color: #ff9800;
}