/* Outline Builder Styles */
/* Layout positioning handled by chat-layout.css three-column layout */

/* Resize handle */
.resize-handle {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 5px;
    cursor: col-resize;
    background: transparent;
    z-index: 10;
    transition: background 0.2s ease;
}

.resize-handle:hover {
    background: #4338ca;
}

.resize-handle:active {
    background: #4338ca;
}

.outline-builder {
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
}

.empty-outline-state {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    text-align: center;
    color: var(--muted-foreground);
}

.empty-outline-state p:first-child {
    font-size: 3rem;
    margin: 0 0 1rem 0;
}

.empty-outline-state p:last-child {
    font-size: 0.875rem;
    margin: 0;
    line-height: 1.5;
}

.outline-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    border-bottom: 1px solid var(--border-color, #333);
}

.outline-toggle-btn {
    background: none;
    border: none;
    color: var(--text-secondary, #999);
    cursor: pointer;
    font-size: 16px;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.outline-toggle-btn:hover {
    background-color: var(--hover-bg, rgba(255, 255, 255, 0.1));
}

/* Collapsed state for outline builder */
#outline-builder.collapsed .outline-header {
    justify-content: center;
    padding: 16px 8px;
}

#outline-builder.collapsed .outline-toggle-btn {
    margin: 0 auto;
}

.outline-header > div {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
}

.outline-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary, #fff);
}

.outline-prompt {
    margin: 4px 0 0 0;
    font-size: 13px;
    color: var(--text-secondary, #999);
    font-weight: 400;
}

.build-packet-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: #216aa4;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(33, 106, 164, 0.25);
}

.build-packet-btn:hover {
    background: #1a5683;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(33, 106, 164, 0.35);
}

.save-indicator {
    font-size: 12px;
    color: var(--text-secondary, #999);
}

.save-indicator.success {
    color: var(--success-color, #4CAF50);
}

.save-indicator.error {
    color: var(--danger-color, #f44336);
}

.selected-sources-pool {
    border-bottom: 1px solid var(--border-color, #333);
    padding: 16px;
}

.pool-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.pool-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary, #fff);
}

.pool-hint {
    font-size: 11px;
    color: var(--text-secondary, #999);
}

.upload-file-btn {
    margin: 16px;
    padding: 10px 16px;
    font-size: 14px;
    color: #ffffff !important;
    background: #216aa4;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(33, 106, 164, 0.25);
}

.upload-file-btn:hover {
    background: #1a5683;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(33, 106, 164, 0.35);
}

.upload-file-btn:active {
    transform: translateY(0);
}

.source-chips {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 200px;
    overflow-y: auto;
}

.source-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--chip-bg, rgba(76, 175, 80, 0.1));
    border: 1px solid var(--chip-border, rgba(76, 175, 80, 0.3));
    border-radius: 6px;
    cursor: grab;
    transition: all 0.2s;
}

.source-chip:hover {
    background: var(--chip-hover-bg, rgba(76, 175, 80, 0.2));
    transform: translateY(-1px);
}

.source-chip.dragging {
    opacity: 0.5;
    cursor: grabbing;
}

.source-chip-icon {
    font-size: 16px;
}

.source-chip-title {
    flex: 1;
    font-size: 12px;
    color: var(--text-primary, #fff);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.remove-chip-btn {
    background: none;
    border: none;
    color: var(--text-secondary, #999);
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 14px;
    opacity: 0;
    transition: all 0.2s;
}

.source-chip:hover .remove-chip-btn {
    opacity: 1;
}

.remove-chip-btn:hover {
    background: var(--danger-color, #f44336);
    color: white;
}

.empty-pool {
    text-align: center;
    padding: 20px;
    color: var(--text-secondary, #999);
}

.empty-pool p {
    margin: 6px 0;
    font-size: 13px;
}

.empty-pool .hint {
    font-size: 11px;
    color: var(--text-tertiary, #666);
}

.outline-sections {
    flex: 1;
    padding: 16px;
    overflow-y: auto;
}

.outline-section {
    margin-bottom: 16px;
    background: var(--section-bg, rgba(255, 255, 255, 0.03));
    border: 1px solid var(--border-color, #333);
    border-radius: 8px;
    overflow: hidden;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px;
    background: var(--section-header-bg, rgba(255, 255, 255, 0.05));
    border-bottom: 1px solid var(--border-color, #333);
}

.section-title-input {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-primary, #fff);
    font-size: 14px;
    font-weight: 500;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.section-title-input:focus {
    outline: none;
    background: var(--input-focus-bg, rgba(255, 255, 255, 0.1));
}

.section-controls {
    display: flex;
    gap: 4px;
}

.section-move-btn,
.section-delete-btn {
    background: none;
    border: none;
    color: var(--text-secondary, #999);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    transition: all 0.2s;
}

.section-move-btn:hover {
    background: var(--hover-bg, rgba(255, 255, 255, 0.1));
    color: var(--text-primary, #fff);
}

.section-delete-btn:hover {
    background: var(--danger-color, #f44336);
    color: white;
}

.section-drop-zone {
    min-height: 60px;
    padding: 12px;
    transition: background-color 0.2s;
}

.section-drop-zone.drag-over {
    background: var(--drop-zone-active, rgba(76, 175, 80, 0.1));
    border: 2px dashed var(--primary-color, #4CAF50);
}

.drop-placeholder {
    text-align: center;
    padding: 20px 10px;
    color: var(--text-secondary, #999);
    font-size: 12px;
    border: 2px dashed var(--border-color, #333);
    border-radius: 6px;
}

.section-source {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    margin-bottom: 6px;
    background: var(--source-bg, rgba(255, 255, 255, 0.05));
    border-radius: 6px;
    transition: all 0.2s;
}

.section-source:hover {
    background: var(--source-hover-bg, rgba(255, 255, 255, 0.08));
}

.source-icon {
    font-size: 14px;
}

.source-title {
    flex: 1;
    font-size: 12px;
    color: var(--text-primary, #fff);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.remove-source-btn {
    background: none;
    border: none;
    color: var(--text-secondary, #999);
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 14px;
    opacity: 0;
    transition: all 0.2s;
}

.section-source:hover .remove-source-btn {
    opacity: 1;
}

.remove-source-btn:hover {
    background: var(--danger-color, #f44336);
    color: white;
}

.add-section-btn {
    margin: 16px;
    padding: 10px 16px;
    background: #216aa4;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 2px 8px rgba(33, 106, 164, 0.25);
}

.add-section-btn:hover {
    background: #1a5683;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(33, 106, 164, 0.35);
}

/* Mobile responsive - layout positioning handled by layout/chat-layout.css */