/* DocGenius Sidebar Styles */

/* Sidebar Container */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    background-color: var(--color-bg-secondary);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: var(--z-index-sticky);
    transition: transform var(--transition-normal);
    flex-shrink: 0;
    overflow: hidden;
}

.sidebar-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

/* Sidebar Header */
.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-bg-primary);
    flex-shrink: 0;
}

.sidebar-toggle {
    display: none;
    padding: var(--spacing-2);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.sidebar-toggle:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

.sidebar-actions {
    display: flex;
    gap: var(--spacing-1);
}

.sidebar-action {
    padding: var(--spacing-2);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.sidebar-action:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

/* Sidebar Content */
.sidebar-content {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* Sidebar Sections */
.sidebar-section {
    flex: 1 1 0;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
}

.sidebar-section:not(:last-child) {
    border-bottom: 1px solid var(--color-border);
}

/* Section Headers */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-3) var(--spacing-4);
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border-light);
    flex-shrink: 0;
}

.section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin: 0;
}

.section-title .material-symbols-outlined {
    font-size: 18px;
    color: var(--color-text-muted);
}

.section-action {
    padding: var(--spacing-1);
    border-radius: var(--radius-base);
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.section-action:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

/* File List */
.file-list-container {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
}

.file-list {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--spacing-2) 0;
    min-height: 0;
}

.file-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    margin: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--color-text-secondary);
    min-width: 0;
}

.file-item:hover,
.file-item.active {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-xs);
}

.file-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary-100);
    color: var(--color-primary-600);
    font-size: 16px;
}

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

.file-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: inherit;
    margin: 0 0 var(--spacing-1) 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.file-actions {
    display: flex;
    gap: var(--spacing-1);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.file-item:hover .file-actions {
    opacity: 1;
}

.file-action {
    padding: var(--spacing-1);
    border-radius: var(--radius-base);
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.file-action:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

/* Upload Area */
.upload-area {
    padding: var(--spacing-3) var(--spacing-4);
    border-top: 1px solid var(--color-border-light);
    flex-shrink: 0;
    background-color: var(--color-bg-secondary);
}

.upload-dropzone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-3);
    text-align: center;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.upload-dropzone:hover,
.upload-dropzone.dragover {
    border-color: var(--color-primary-300);
    background-color: var(--color-primary-50);
}

.upload-dropzone .material-symbols-outlined {
    font-size: 24px;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-1);
}

.upload-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-1);
}

.upload-link {
    color: var(--color-primary-600);
    text-decoration: underline;
    background: none;
    border: none;
    font-size: inherit;
    cursor: pointer;
    padding: 0;
}

.upload-link:hover {
    color: var(--color-primary-700);
}

.upload-hint {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin: 0;
}

/* Upload Progress */
.upload-progress {
    margin-top: var(--spacing-4);
}

.progress-bar {
    height: 4px;
    background-color: var(--color-gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-2);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary-500), var(--color-primary-600));
    border-radius: var(--radius-full);
    transition: width var(--transition-normal);
    width: 0%;
}

.progress-text {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-align: center;
    margin: 0;
}

/* Conversation List */
.conversation-list-container {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
}

.conversation-list {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--spacing-2) 0;
    min-height: 0;
}

.conversation-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    margin: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    min-width: 0;
}

.conversation-item:hover {
    background-color: var(--color-bg-primary);
}

.conversation-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    background-color: var(--color-success);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: var(--font-weight-bold);
    margin-top: var(--spacing-1);
}

.conversation-content {
    flex: 1;
    min-width: 0;
}

.conversation-question {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    margin: 0 0 var(--spacing-1) 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.conversation-preview {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Empty States */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-6) var(--spacing-4);
    text-align: center;
    color: var(--color-text-muted);
    flex: 1;
    min-height: 150px;
}

.empty-state .material-symbols-outlined {
    font-size: 48px;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-4);
    opacity: 0.5;
}

.empty-state p {
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-3);
}

.empty-state-hint {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin: 0;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--spacing-2) var(--spacing-3);
    border-top: 1px solid var(--color-border);
    background-color: var(--color-bg-primary);
    flex-shrink: 0;
    margin-top: auto;
}

.app-info {
    text-align: center;
}

.app-name {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin: 0;
}

.app-credits {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin: 0;
    line-height: 1.4;
}

.app-credits a {
    color: var(--color-primary-600);
    text-decoration: none;
}

.app-credits a:hover {
    text-decoration: underline;
}

.app-links {
    margin: var(--spacing-1) 0 0 0;
}

.app-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
    font-size: 14px;
}

.app-links a:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        z-index: var(--z-index-modal);
        transform: translateX(-100%);
        box-shadow: var(--shadow-xl);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .sidebar-toggle {
        display: flex;
    }
}

@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        max-width: 320px;
    }
    
    .upload-dropzone {
        padding: var(--spacing-3);
    }
    
    .sidebar-header {
        padding: var(--spacing-3);
    }
    
    .section-header {
        padding: var(--spacing-2) var(--spacing-3);
    }
    
    .file-item,
    .conversation-item {
        padding: var(--spacing-2) var(--spacing-3);
        margin: var(--spacing-1);
    }
    
    .upload-area {
        padding: var(--spacing-2) var(--spacing-3);
    }
    
    .sidebar-footer {
        padding: var(--spacing-2);
    }
}

/* Sidebar Overlay for Mobile */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-index-modal) - 1);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.file-item,
.conversation-item {
    animation: fadeIn 0.3s ease-out;
}

/* Scrollbar Styling */
.file-list::-webkit-scrollbar,
.conversation-list::-webkit-scrollbar,
.messages-container::-webkit-scrollbar {
    width: 6px;
}

.file-list::-webkit-scrollbar-track,
.conversation-list::-webkit-scrollbar-track,
.messages-container::-webkit-scrollbar-track {
    background: transparent;
}

.file-list::-webkit-scrollbar-thumb,
.conversation-list::-webkit-scrollbar-thumb,
.messages-container::-webkit-scrollbar-thumb {
    background-color: var(--color-gray-300);
    border-radius: var(--radius-full);
}

.file-list::-webkit-scrollbar-thumb:hover,
.conversation-list::-webkit-scrollbar-thumb:hover,
.messages-container::-webkit-scrollbar-thumb:hover {
    background-color: var(--color-gray-400);
}

/* Focus Styles */
.file-item:focus,
.conversation-item:focus,
.upload-dropzone:focus {
    outline: 2px solid var(--color-primary-500);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .sidebar {
        display: none;
    }
}