.content-area {
    background: var(--background);
    padding: var(--spacing-xl);
    overflow-y: auto;
}

.function-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: nowrap;
    overflow-x: auto;
}


.tab-button {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.tab-button:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.tab-button.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.new-chat-button {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--primary-color);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    font-weight: 600;
    color: white;
    cursor: pointer;
    transition: var(--transition);
    margin-left: auto;
}

.new-chat-button:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.function-content {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.function-panel {
    display: none;
}

.function-panel.active {
    display: block;
}

.drop-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    background: var(--background);
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: var(--spacing-md);
    transition: var(--transition);
}

.drop-zone.drag-over {
    border-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.05);
}

.drop-zone p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.dropped-documents {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.dropped-doc {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.dropped-doc .remove-doc {
    cursor: pointer;
    color: #999;
    font-weight: bold;
    transition: var(--transition);
}

.dropped-doc .remove-doc:hover {
    color: var(--error);
}


.delete-doc {
    color: #999;
    cursor: pointer;
    font-size: 14px;
    transition: var(--transition);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.delete-doc:hover {
    color: var(--error);
    background: rgba(239, 68, 68, 0.1);
}

.settings-panel {
    margin-bottom: var(--spacing-xl);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-group input[type="range"] {
    width: 100%;
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
}

.form-group input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
}

.form-group input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.btn-primary {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
}

.btn-primary:hover {
    background: var(--primary-hover);
}

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

.btn-secondary {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--surface);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-icon {
    padding: var(--spacing-sm) var(--spacing-md);
}

.output-panel {
    border-top: 1px solid var(--border);
    padding-top: var(--spacing-lg);
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.output-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.output-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.output-content {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    min-height: 200px;
    max-height: 500px;
    overflow-y: auto;
    font-size: 0.875rem;
    line-height: 1.6;
}

.output-placeholder {
    color: var(--text-secondary);
    text-align: center;
}

.output-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    color: var(--text-secondary);
}

.output-loading .loading-dots {
    display: inline-flex;
    gap: 0.25rem;
}

.output-loading .loading-dots span {
    width: 6px;
    height: 6px;
    background: var(--text-secondary);
    border-radius: 50%;
    animation: pulse 1.4s infinite ease-in-out;
}

.output-loading .loading-dots span:nth-child(1) {
    animation-delay: -0.32s;
}

.output-loading .loading-dots span:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes pulse {
    0%, 80%, 100% {
        opacity: 0.3;
        transform: scale(0.8);
    }
    40% {
        opacity: 1;
        transform: scale(1);
    }
}

.output-image {
    max-width: 512px;
    max-height: 512px;
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
}

.output-video {
    max-width: 512px;
    max-height: 512px;
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
}

.loading-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

.loading-overlay.active {
    display: flex;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.notification {
    position: fixed;
    top: 80px;
    right: 20px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transform: translateX(400px);
    transition: transform 0.3s ease;
    min-width: 300px;
    max-width: 400px;
}

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

.notification.success {
    border-left: 4px solid var(--success);
}

.notification.error {
    border-left: 4px solid var(--error);
}

.notification.info {
    border-left: 4px solid var(--info);
}

.notification.warning {
    border-left: 4px solid var(--warning);
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--background);
}

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

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

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.markdown-content h1 { font-size: 2em; }
.markdown-content h2 { font-size: 1.5em; }
.markdown-content h3 { font-size: 1.25em; }

.markdown-content p {
    margin: 0.5rem 0;
    line-height: 1.6;
}

.markdown-content ul,
.markdown-content ol {
    margin: 0.5rem 0;
    padding-left: 2rem;
}

.markdown-content li {
    margin: 0.25rem 0;
}

.markdown-content code {
    background: var(--bg-secondary);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

.markdown-content pre {
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1rem 0;
}

.markdown-content pre code {
    background: none;
    padding: 0;
}

.markdown-content blockquote {
    border-left: 4px solid var(--primary);
    padding-left: 1rem;
    margin: 1rem 0;
    color: var(--text-secondary);
}

.markdown-content a {
    color: var(--primary);
    text-decoration: none;
}

.markdown-content a:hover {
    text-decoration: underline;
}

.markdown-content strong {
    font-weight: 600;
}

.markdown-content em {
    font-style: italic;
}

.markdown-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 1rem 0;
}

.markdown-content th,
.markdown-content td {
    border: 1px solid var(--border);
    padding: 0.5rem;
    text-align: left;
}

.markdown-content th {
    background: var(--bg-secondary);
    font-weight: 600;
}