/*
 * Tree View Component
 * JSONツリー、ノード、アクション、ドラッグ＆ドロップ、クイックメニューのスタイル定義
 */

/* --- Tree Nodes --- */
.je-json-node {
    margin-left: 12px;
    padding: 4px 0 4px 12px;
    border-left: 1px solid var(--je-border-color);
    transition: border-color 0.2s;
}
.je-json-node:hover {
    border-left-color: var(--je-accent-color-solid);
}

.je-node-header {
    display: flex;
    align-items: center;
    gap: var(--je-spacing-sm);
    padding: 4px;
    border-radius: 4px;
    cursor: pointer;
    user-select: none;
    position: relative; /* For drop target indicators */
    transition: background-color 0.2s;
}
.je-node-header:hover {
    background-color: var(--je-bg-tertiary);
}

.je-node-key {
    font-family: monospace;
    font-size: 0.9em;
    font-weight: 600;
    color: var(--je-accent-color-solid);
}

/* Editable Key Styles */
.je-editable-key {
    cursor: pointer;
    border-radius: 4px;
    transition: color 0.2s, background-color 0.2s;
}
.je-editable-key:hover {
    color: var(--je-accent-color-hover);
    background-color: var(--je-bg-tertiary);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
}

.je-node-separator {
    font-size: 0.8em;
    color: var(--je-text-secondary);
}

.je-node-value-container {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--je-spacing-sm);
    margin-left: var(--je-spacing-sm);
    overflow: hidden;
}

.je-node-type-badge {
    padding: 2px 6px;
    background-color: var(--je-bg-tertiary);
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--je-text-secondary);
}

.je-node-value-wrapper {
    display: flex;
    align-items: center;
    flex: 1;
}

.je-node-value {
    max-width: 300px;
    font-size: 0.9em;
    color: var(--je-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.je-node-value.je-editable {
    cursor: pointer;
    text-decoration-line: underline;
    text-decoration-color: var(--je-accent-color-solid);
    text-underline-offset: 2px;
}
.je-node-value.je-editable:hover {
    color: var(--je-accent-color-solid);
}

.je-node-value-empty {
    font-style: italic;
    color: var(--je-text-secondary);
    min-width: 30px;
    display: inline-block;
    cursor: text;
    padding: 0 4px;
    border-radius: 4px;
    transition: background-color 0.2s;
}
.je-node-value-empty:hover {
    background-color: var(--je-bg-tertiary);
}

/* --- Drag & Drop Styles --- */
.je-drag-handle {
    cursor: grab;
    color: var(--je-border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2px;
    margin-right: 4px;
    opacity: 0;
    transition: opacity 0.2s, color 0.2s;
}
.je-node-header:hover .je-drag-handle {
    opacity: 1;
}
.je-drag-handle:hover {
    color: var(--je-text-secondary);
}
.je-drag-handle:active {
    cursor: grabbing;
}

.je-dragging {
    opacity: 0.5;
    background-color: var(--je-bg-tertiary);
}

/* Drop Targets (Lines) */
.je-drop-target-top::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 0;
    right: 0;
    height: 4px;
    background-color: var(--je-accent-color-solid);
    border-radius: 2px;
    z-index: 10;
    pointer-events: none;
}
.je-drop-target-bottom::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 4px;
    background-color: var(--je-accent-color-solid);
    border-radius: 2px;
    z-index: 10;
    pointer-events: none;
}

/* --- Node Actions --- */
.je-node-actions {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
    opacity: 0;
    transition: opacity 0.2s;
}
.je-node-header:hover .je-node-actions {
    opacity: 1;
}

.je-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
    border-radius: 4px;
    color: var(--je-text-secondary);
    transition: background-color 0.2s;
}
.je-action-btn:hover {
    background-color: var(--je-bg-tertiary);
}

/* Action Button Colors */
.je-action-btn.je-btn-add { color: var(--je-accent-color-solid); }
.je-action-btn.je-btn-delete { color: var(--je-danger-text); }
.je-action-btn.je-btn-clone { color: var(--je-success-text); }
.je-action-btn.je-btn-edit { color: var(--je-info-color); }

/* --- Add Item Buttons & Quick Menu --- */
.je-add-btn-container {
    margin-top: 4px;
    margin-left: 24px;
    display: inline-flex;
    align-items: center;
    position: relative; /* For Quick Menu Positioning */
}

.je-add-item-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.85em;
    font-weight: 500;
    color: var(--je-accent-color-solid);
    transition: background-color 0.2s;
    white-space: nowrap;
}
.je-add-item-btn:hover {
    background-color: rgba(20, 158, 255, 0.1);
}

/* Quick Add Menu */
.je-quick-add-menu {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: 8px;
    padding-left: 8px;
    border-left: 1px solid var(--je-border-color);
    
    /* 初期状態は非表示（透明） */
    opacity: 0;
    visibility: hidden;
    transform: translateX(-10px);
    transition: all 0.2s ease-out;
}

/* ホバー時に表示 */
.je-add-btn-container:hover .je-quick-add-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.je-quick-add-btn {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--je-text-secondary);
    transition: all 0.2s;
    background-color: var(--je-bg-tertiary);
    border: 1px solid transparent;
}
.je-quick-add-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--je-shadow-sm);
}

/* Quick Add Button Colors (Matching Modal Types) */
.je-quick-add-btn[data-type="string"]:hover { color: #22c55e; border-color: #22c55e; background-color: #f0fdf4; }
.je-quick-add-btn[data-type="number"]:hover { color: #3b82f6; border-color: #3b82f6; background-color: #eff6ff; }
.je-quick-add-btn[data-type="boolean"]:hover { color: #f59e0b; border-color: #f59e0b; background-color: #fffbeb; }
.je-quick-add-btn[data-type="object"]:hover { color: #8b5cf6; border-color: #8b5cf6; background-color: #f5f3ff; }
.je-quick-add-btn[data-type="array"]:hover { color: #ec4899; border-color: #ec4899; background-color: #fdf2f8; }
.je-quick-add-btn[data-type="null"]:hover { color: #64748b; border-color: #64748b; background-color: #f1f5f9; }

/* Dark mode adjustments */
.dark .je-quick-add-btn[data-type="string"]:hover { background-color: #14532d; }
.dark .je-quick-add-btn[data-type="number"]:hover { background-color: #1e3a8a; }
.dark .je-quick-add-btn[data-type="boolean"]:hover { background-color: #451a03; }
.dark .je-quick-add-btn[data-type="object"]:hover { background-color: #4c1d95; }
.dark .je-quick-add-btn[data-type="array"]:hover { background-color: #831843; }
.dark .je-quick-add-btn[data-type="null"]:hover { background-color: #334155; }