/* public/css/style.css */
:root {
    --primary-color: #667eea;
    --primary-dark: #5568d3;
    --secondary-color: #764ba2;
    --background: #0f0f23;
    --surface: #1a1a2e;
    --surface-light: #242444;
    --text-primary: #ffffff;
    --text-secondary: #a0a0c0;
    --border-color: #2d2d44;
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --shadow: rgba(0, 0, 0, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    overflow: hidden;
}

.app-container {
    display: flex;
    height: 100vh;
}

/* Sidebar Styles */
.sidebar {
    width: 320px;
    background: var(--surface);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

.repository-selector {
    margin-bottom: 32px;
}

.repository-selector label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.select-input {
    width: 100%;
    padding: 10px 12px;
    background: var(--surface-light);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.select-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.icon-button {
    background: var(--surface-light);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 8px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: 8px;
}

.icon-button:hover {
    background: var(--primary-color);
    color: var(--text-primary);
    border-color: var(--primary-color);
}

.upload-section {
    margin-bottom: 32px;
}

.upload-section h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 32px 16px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    background: var(--surface-light);
}

.drop-zone:hover {
    border-color: var(--primary-color);
    background: rgba(102, 126, 234, 0.05);
}

.drop-zone.dragging {
    border-color: var(--primary-color);
    background: rgba(102, 126, 234, 0.1);
    transform: scale(1.02);
}

.drop-zone svg {
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.drop-zone p {
    margin: 8px 0;
    color: var(--text-secondary);
    font-size: 14px;
}

.file-types {
    font-size: 12px !important;
    color: var(--text-secondary);
    opacity: 0.7;
}

.file-list {
    margin-top: 16px;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--surface-light);
    border-radius: 8px;
    margin-bottom: 8px;
    font-size: 14px;
}

.file-item-icon {
    width: 32px;
    height: 32px;
    background: var(--primary-color);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

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

.file-item-name {
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-item-size {
    font-size: 12px;
    color: var(--text-secondary);
}

.file-item-progress {
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 6px;
}

.file-item-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width 0.3s;
}

.settings-section h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom:16px;
    color: var(--text-primary);
}

.secondary-button {
    width: 100%;
    padding: 12px 16px;
    background: var(--surface-light);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.secondary-button:hover {
    background: var(--border-color);
}

/* Main Content Styles */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-header {
    padding: 24px 32px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--surface);
}

.chat-header h1 {
    font-size: 24px;
    font-weight: 700;
}

.header-actions {
    display: flex;
    gap: 8px;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 32px;
}

.welcome-message {
    max-width: 600px;
    margin: 60px auto;
    text-align: center;
}

.welcome-icon {
    margin-bottom: 24px;
}

.welcome-message h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.welcome-message > p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    text-align: left;
    max-width: 400px;
    margin: 0 auto;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--surface);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.feature-item svg {
    color: var(--success);
    flex-shrink: 0;
}

/* Message Styles */
.message {
    margin-bottom: 24px;
    animation: slideIn 0.3s ease;
}

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

.message-user {
    display: flex;
    justify-content: flex-end;
}

.message-user .message-content {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-primary);
    max-width: 70%;
    padding: 16px 20px;
    border-radius: 20px 20px 4px 20px;
    font-size: 15px;
}

.message-assistant {
    display: flex;
    gap: 12px;
}

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.message-assistant .message-content {
    background: var(--surface);
    color: var(--text-primary);
    max-width: 70%;
    padding: 16px 20px;
    border-radius: 20px 20px 20px 4px;
    border: 1px solid var(--border-color);
    font-size: 15px;
}

.message-sources {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.message-sources h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.source-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--surface-light);
    border-radius: 8px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.source-item:hover {
    background: var(--border-color);
    border-color: var(--primary-color);
    transform: translateX(4px);
}

.source-icon {
    width: 32px;
    height: 32px;
    background: var(--primary-color);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

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

.source-name {
    font-size: 14px;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.source-page {
    font-size: 12px;
    color: var(--text-secondary);
}

.source-score {
    font-size: 12px;
    color: var(--success);
    font-weight: 500;
}

.typing-indicator {
    display: flex;
    gap: 6px;
    padding: 16px;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--text-secondary);
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.5;
    }
    30% {
        transform: translateY(-10px);
        opacity: 1;
    }
}

/* Chat Input Styles */
.chat-input-container {
    padding: 24px 32px;
    background: var(--surface);
    border-top: 1px solid var(--border-color);
}

.chat-input-wrapper {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    background: var(--surface-light);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 12px 16px;
    transition: all 0.2s;
}

.chat-input-wrapper:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.chat-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 15px;
    font-family: inherit;
    resize: none;
    max-height: 150px;
    outline: none;
}

.chat-input::placeholder {
    color: var(--text-secondary);
}

.send-button {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 10px;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
}

.send-button:hover:not(:disabled) {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.send-button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.input-info {
    margin-top: 8px;
    text-align: center;
}

.info-text {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--surface);
    border-radius: 16px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-content.page-viewer {
    max-width: 900px;
}

.modal-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 20px;
    font-weight: 600;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 28px;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all 0.2s;
}

.modal-close:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
}

.settings-group {
    margin-bottom: 24px;
}

.settings-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.text-input {
    width: 100%;
    padding: 12px;
    background: var(--surface-light);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: all 0.2s;
}

.text-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.settings-group input[type="range"] {
    width: calc(100% - 60px);
    margin-right: 12px;
}

.settings-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
}

.settings-group input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.primary-button {
    width: 100%;
    padding: 14px 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    color: var(--text-primary);
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.primary-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.viewer-content {
    background: var(--surface-light);
    border-radius: 8px;
    padding: 24px;
    white-space: pre-wrap;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
    max-height: 60vh;
    overflow-y: auto;
}

/* Voice Recording Styles */
.voice-recording {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--error);
    border-radius: 12px;
    margin-bottom: 16px;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.voice-recording-icon {
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.voice-recording-text {
    flex: 1;
    font-weight: 500;
}

/* Scrollbar Styles */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .sidebar {
        width: 280px;
    }
}

@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .sidebar-content {
        padding: 16px;
    }
    
    .chat-header {
        padding: 16px;
    }
    
    .chat-messages {
        padding: 16px;
    }
    
    .chat-input-container {
        padding: 16px;
    }
    
    .message-content {
        max-width: 85% !important;
    }
    
    .modal-content {
        width: 95%;
        max-height: 95vh;
    }
}

/* Loading States */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Success/Error States */
.success-message {
    padding: 12px 16px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success);
    border-radius: 8px;
    color: var(--success);
    font-size: 14px;
    margin-bottom: 16px;
}

.error-message {
    padding: 12px 16px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error);
    border-radius: 8px;
    color: var(--error);
    font-size: 14px;
    margin-bottom: 16px;
}

/* Models Management Styles */
.stat-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--surface-light);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-value {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

.table-container {
    overflow-x: auto;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.models-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface-light);
}

.models-table thead {
    background: var(--surface);
    border-bottom: 2px solid var(--border-color);
}

.models-table th {
    padding: 12px 16px;
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.models-table td {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.models-table tbody tr:last-child td {
    border-bottom: none;
}

.models-table tbody tr:hover {
    background: var(--surface);
}

.model-name-cell {
    font-weight: 600;
}

.model-digest {
    font-size: 11px;
    color: var(--text-secondary);
    font-family: 'Courier New', monospace;
}

.model-status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.model-status-badge.loaded {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
}

.model-status-badge.available {
    background: rgba(100, 116, 139, 0.15);
    color: #64748b;
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

.status-dot.pulse {
    animation: pulse 2s infinite;
}

.model-action-btn {
    padding: 6px 12px;
    font-size: 13px;
    border-radius: 6px;
    border: none;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.model-action-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.model-action-btn.load {
    background: #10b981;
    color: white;
}

.model-action-btn.load:hover:not(:disabled) {
    background: #059669;
}

.model-action-btn.unload {
    background: #ef4444;
    color: white;
}

.model-action-btn.unload:hover:not(:disabled) {
    background: #dc2626;
}

.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

.empty-state-models {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state-models svg {
    width: 64px;
    height: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state-models h4 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.empty-state-models p {
    font-size: 14px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .models-table {
        font-size: 13px;
    }
    
    .models-table th,
    .models-table td {
        padding: 10px 8px;
    }
    
    .stat-badge {
        padding: 6px 12px;
        font-size: 12px;
    }
}



/* Code Block Styling - Add this to your existing style.css */

/* Code blocks with syntax highlighting */
.code-block {
    background: #1e1e1e;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    margin: 12px 0;
    overflow: hidden;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.code-language {
    font-size: 12px;
    color: #a0a0a0;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.code-copy-btn {
    background: rgba(102, 126, 234, 0.2);
    border: 1px solid rgba(102, 126, 234, 0.4);
    color: #667eea;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
}

.code-copy-btn:hover {
    background: rgba(102, 126, 234, 0.3);
    border-color: #667eea;
}

.code-block pre {
    margin: 0;
    padding: 16px;
    overflow-x: auto;
    background: transparent;
}

.code-block code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
    color: #d4d4d4;
    display: block;
}

/* Inline code styling */
.inline-code {
    background: rgba(102, 126, 234, 0.15);
    border: 1px solid rgba(102, 126, 234, 0.3);
    color: #667eea;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
    font-weight: 500;
}

/* Syntax highlighting colors (basic) */
.code-block code .keyword {
    color: #569cd6;
    font-weight: 600;
}

.code-block code .string {
    color: #ce9178;
}

.code-block code .comment {
    color: #6a9955;
    font-style: italic;
}

.code-block code .function {
    color: #dcdcaa;
}

.code-block code .number {
    color: #b5cea8;
}

/* Scrollbar styling for code blocks */
.code-block pre::-webkit-scrollbar {
    height: 8px;
}

.code-block pre::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}

.code-block pre::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
}

.code-block pre::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Responsive code blocks */
@media (max-width: 768px) {
    .code-block code {
        font-size: 12px;
    }
    
    .code-block pre {
        padding: 12px;
    }
}

/* Code Block Styling - Add this to your existing style.css */

/* Source item updates for download button */
.source-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.source-item:hover {
    background: rgba(102, 126, 234, 0.15);
    border-color: rgba(102, 126, 234, 0.3);
}

.source-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}

.source-download-btn {
    background: rgba(102, 126, 234, 0.2);
    border: 1px solid rgba(102, 126, 234, 0.4);
    color: #667eea;
    padding: 6px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.source-download-btn:hover {
    background: rgba(102, 126, 234, 0.3);
    border-color: #667eea;
    transform: translateY(-1px);
}

.source-download-btn svg {
    display: block;
}

/* Code blocks with syntax highlighting */
.code-block {
    background: #1e1e1e;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    margin: 12px 0;
    overflow: hidden;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.code-language {
    font-size: 12px;
    color: #a0a0a0;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.code-copy-btn {
    background: rgba(102, 126, 234, 0.2);
    border: 1px solid rgba(102, 126, 234, 0.4);
    color: #667eea;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
}

.code-copy-btn:hover {
    background: rgba(102, 126, 234, 0.3);
    border-color: #667eea;
}

.code-block pre {
    margin: 0;
    padding: 16px;
    overflow-x: auto;
    background: transparent;
}

.code-block code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
    color: #d4d4d4;
    display: block;
}

/* Inline code styling */
.inline-code {
    background: rgba(102, 126, 234, 0.15);
    border: 1px solid rgba(102, 126, 234, 0.3);
    color: #667eea;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
    font-weight: 500;
}

/* Syntax highlighting colors (basic) */
.code-block code .keyword {
    color: #569cd6;
    font-weight: 600;
}

.code-block code .string {
    color: #ce9178;
}

.code-block code .comment {
    color: #6a9955;
    font-style: italic;
}

.code-block code .function {
    color: #dcdcaa;
}

.code-block code .number {
    color: #b5cea8;
}

/* Scrollbar styling for code blocks */
.code-block pre::-webkit-scrollbar {
    height: 8px;
}

.code-block pre::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}

.code-block pre::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
}

.code-block pre::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Responsive code blocks */
@media (max-width: 768px) {
    .code-block code {
        font-size: 12px;
    }
    
    .code-block pre {
        padding: 12px;
    }
}

/* ============================================
   CODE BLOCK & FILE DOWNLOAD STYLES
   Add these styles to your existing style.css
   ============================================ */

/* Source items with download buttons */
.source-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: 8px;
}

.source-item:hover {
    background: rgba(102, 126, 234, 0.15);
    border-color: rgba(102, 126, 234, 0.3);
}

.source-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    background: rgba(102, 126, 234, 0.2);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.source-name {
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.source-page {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.source-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
    flex-shrink: 0;
}

.source-score {
    font-size: 12px;
    font-weight: 600;
    color: #667eea;
    padding: 4px 8px;
    background: rgba(102, 126, 234, 0.15);
    border-radius: 4px;
}

.source-download-btn {
    background: rgba(102, 126, 234, 0.2);
    border: 1px solid rgba(102, 126, 234, 0.4);
    color: #667eea;
    padding: 6px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.source-download-btn:hover {
    background: rgba(102, 126, 234, 0.3);
    border-color: #667eea;
    transform: translateY(-1px);
}

.source-download-btn svg {
    display: block;
}

/* Code blocks with syntax highlighting */
.code-block {
    background: #1e1e1e;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    margin: 12px 0;
    overflow: hidden;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.code-language {
    font-size: 12px;
    color: #a0a0a0;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.code-copy-btn {
    background: rgba(102, 126, 234, 0.2);
    border: 1px solid rgba(102, 126, 234, 0.4);
    color: #667eea;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
}

.code-copy-btn:hover {
    background: rgba(102, 126, 234, 0.3);
    border-color: #667eea;
}

.code-block pre {
    margin: 0;
    padding: 16px;
    overflow-x: auto;
    background: transparent;
}

.code-block code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
    color: #d4d4d4;
    display: block;
}

/* Inline code styling */
.inline-code {
    background: rgba(102, 126, 234, 0.15);
    border: 1px solid rgba(102, 126, 234, 0.3);
    color: #667eea;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
    font-weight: 500;
}

/* Syntax highlighting colors (basic) */
.code-block code .keyword {
    color: #569cd6;
    font-weight: 600;
}

.code-block code .string {
    color: #ce9178;
}

.code-block code .comment {
    color: #6a9955;
    font-style: italic;
}

.code-block code .function {
    color: #dcdcaa;
}

.code-block code .number {
    color: #b5cea8;
}

/* Scrollbar styling for code blocks */
.code-block pre::-webkit-scrollbar {
    height: 8px;
}

.code-block pre::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}

.code-block pre::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
}

.code-block pre::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Responsive code blocks and sources */
@media (max-width: 768px) {
    .code-block code {
        font-size: 12px;
    }
    
    .code-block pre {
        padding: 12px;
    }
    
    .source-item {
        flex-wrap: wrap;
    }
    
    .source-actions {
        width: 100%;
        justify-content: flex-end;
        margin-top: 8px;
        margin-left: 0;
    }
}

/* Improved notification styles - add to end of file */

.success-message,
.error-message {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    max-width: 400px;
    padding: 16px 20px;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    animation: slideInRight 0.3s ease;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.success-message {
    background: rgba(16, 185, 129, 0.95);
    border: 1px solid #10b981;
    color: #ffffff;
}

.error-message {
    background: rgba(239, 68, 68, 0.95);
    border: 1px solid #ef4444;
    color: #ffffff;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideOut {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(100px);
    }
}

/* File upload error styling */
.file-item.error {
    border-color: var(--error);
    background: rgba(239, 68, 68, 0.1);
}

.file-item-error {
    color: var(--error);
    font-size: 12px;
    margin-top: 4px;
    font-weight: 500;
}


/* Public Chat Button Styling */
#public-chat-btn {
    background: rgba(102, 126, 234, 0.15);
    border-color: rgba(102, 126, 234, 0.3);
}

#public-chat-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: scale(1.05);
}

#public-chat-btn svg {
    transition: transform 0.2s;
}

#public-chat-btn:hover svg {
    transform: scale(1.1);
}