/* =============================================
   Workflow Canvas - Drag & Drop Editor Styles
   ============================================= */

/* Canvas Container */
.workflow-editor {
    display: flex;
    height: 600px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-bg-secondary);
}

/* Sidebar - Node Palette */
.workflow-sidebar {
    width: 240px;
    background: var(--color-bg-primary);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-light);
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Collapsible Sidebar Sections */
.sidebar-section {
    border-bottom: 1px solid var(--color-border-light);
}

.sidebar-header.collapsible {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: background var(--transition-fast);
}

.sidebar-header.collapsible:hover {
    background: var(--color-bg-hover);
}

.collapse-icon {
    font-size: 10px;
    color: var(--color-text-muted);
    transition: transform var(--transition-fast);
    width: 12px;
}

.section-count {
    margin-left: auto;
    background: var(--color-primary);
    color: white;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 20px;
    text-align: center;
}

.sidebar-content {
    max-height: 300px;
    overflow: hidden;
    transition: max-height var(--transition-normal), opacity var(--transition-fast);
}

.sidebar-section.collapsed .sidebar-content {
    max-height: 0;
    opacity: 0;
    padding: 0;
}

.sidebar-section.collapsed .collapse-icon {
    transform: rotate(0deg);
}

.node-palette {
    padding: var(--spacing-md);
    overflow-y: auto;
    max-height: 250px;
}

.palette-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: grab;
    transition: all var(--transition-fast);
    user-select: none;
}

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

.palette-item:active {
    cursor: grabbing;
}

.palette-item-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
}

.palette-item-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* Canvas Area */
.workflow-canvas-wrapper {
    flex: 1;
    display: flex;
    position: relative;
}

.workflow-canvas-container {
    flex: 1;
    position: relative;
    overflow: hidden;
}

.workflow-canvas {
    position: absolute;
    inset: 0;
    background-color: #1a1a2e;
    background-image:
        radial-gradient(circle, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: var(--canvas-grid-size) var(--canvas-grid-size);
    cursor: grab;
    touch-action: none;
}

.workflow-canvas.dragging {
    cursor: grabbing;
}

.workflow-canvas.connecting {
    cursor: crosshair;
}

/* Transform Layer - unified layer for zoom/pan */
.canvas-transform-layer {
    position: absolute;
    inset: 0;
    transform-origin: 0 0;
    will-change: transform;
}

/* SVG Layer for Connections */
.connections-layer {
    position: absolute;
    inset: 0;
    width: 5000px;
    height: 5000px;
    pointer-events: none;
    overflow: visible;
}

.connections-layer svg {
    width: 100%;
    height: 100%;
    overflow: visible;
}

/* Connection Lines */
.connection-line {
    fill: none;
    stroke: #4a9eff;
    stroke-width: 2;
    pointer-events: stroke;
    cursor: pointer;
    transition: stroke var(--transition-fast), stroke-width var(--transition-fast);
}

.connection-line:hover {
    stroke: #ff6b6b;
    stroke-width: 3;
}

.connection-line.selected {
    stroke: #ff6b6b;
    stroke-width: 3;
}

.connection-temp {
    stroke: rgba(74, 158, 255, 0.5);
    stroke-dasharray: 8, 4;
    animation: dashMove 0.5s linear infinite;
}

@keyframes dashMove {
    to {
        stroke-dashoffset: -12;
    }
}

/* Nodes Layer */
.nodes-layer {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

/* Workflow Node */
.workflow-node {
    position: absolute;
    width: var(--canvas-node-width);
    min-height: var(--canvas-node-min-height);
    background: linear-gradient(135deg, #2d2d44 0%, #1f1f32 100%);
    border: 2px solid #3a3a5c;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-node);
    pointer-events: auto;
    cursor: move;
    transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
    user-select: none;
}

.workflow-node:hover {
    border-color: #5a5a8c;
    box-shadow: var(--shadow-node-hover);
}

.workflow-node.selected {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(31, 111, 235, 0.3), var(--shadow-node-hover);
}

.workflow-node.dragging {
    opacity: 0.9;
    z-index: 100;
}

/* Tool Node Specific Styles */
.workflow-node.node-tool {
    border-color: #10b981;
}

.workflow-node.node-tool:hover {
    border-color: #34d399;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.workflow-node.node-tool.selected {
    border-color: #10b981;
    box-shadow: 0 0 0 2px #10b981, 0 4px 12px rgba(16, 185, 129, 0.4);
}

.workflow-node.node-tool .node-icon {
    background: linear-gradient(135deg, #10b981, #059669);
    font-size: 14px;
}

/* Node Header */
.node-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.node-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 12px;
}

.node-title {
    flex: 1;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.node-delete {
    width: 20px;
    height: 20px;
    padding: 0;
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    border-radius: var(--radius-sm);
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-fast), color var(--transition-fast);
}

.workflow-node:hover .node-delete {
    opacity: 1;
}

.node-delete:hover {
    color: var(--color-danger);
    background: rgba(179, 38, 30, 0.2);
}

/* Node Body */
.node-body {
    padding: var(--spacing-sm) var(--spacing-md);
}

.node-agent {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.6);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.node-agent-label {
    color: rgba(255, 255, 255, 0.4);
}

/* Node Ports (Connection Points) */
.node-ports {
    position: absolute;
    left: 0;
    right: 0;
}

.node-ports-input {
    top: 50%;
    transform: translateY(-50%);
}

.node-ports-output {
    bottom: -6px;
}

.node-port {
    position: absolute;
    width: var(--canvas-port-size);
    height: var(--canvas-port-size);
    background: #4a9eff;
    border: 2px solid #2d2d44;
    border-radius: 50%;
    cursor: crosshair;
    transition: transform var(--transition-fast), background var(--transition-fast);
    z-index: 10;
}

.node-port:hover {
    transform: scale(1.3);
    background: #70b8ff;
}

.node-port.connecting {
    background: #ffd93d;
    animation: portPulse 0.5s ease infinite;
}

@keyframes portPulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.4);
    }
}

.port-input {
    left: -6px;
    top: 50%;
    transform: translateY(-50%);
}

.port-output {
    left: 50%;
    bottom: -6px;
    transform: translateX(-50%);
}

/* Tool Palette Styles */
.tool-palette {
    max-height: 200px;
    overflow-y: auto;
}

.palette-item-tool {
    border-left: 3px solid #10b981;
}

.palette-item-tool:hover {
    background: rgba(16, 185, 129, 0.15);
    border-color: #34d399;
}

.palette-icon-tool {
    background: linear-gradient(135deg, #10b981, #059669) !important;
}

/* Toolbar */
.canvas-toolbar {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    display: flex;
    gap: var(--spacing-sm);
    z-index: 50;
}

.toolbar-btn {
    width: 36px;
    height: 36px;
    padding: 0;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all var(--transition-fast);
    backdrop-filter: blur(8px);
}

.toolbar-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Zoom Controls */
.zoom-controls {
    position: absolute;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(0, 0, 0, 0.6);
    padding: var(--spacing-xs);
    border-radius: var(--radius-md);
    backdrop-filter: blur(8px);
}

.zoom-level {
    min-width: 50px;
    text-align: center;
    font-size: var(--font-size-xs);
    color: white;
}

/* Minimap */
.canvas-minimap {
    position: absolute;
    bottom: var(--spacing-md);
    left: var(--spacing-md);
    width: 150px;
    height: 100px;
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    overflow: hidden;
    backdrop-filter: blur(8px);
}

.minimap-viewport {
    position: absolute;
    border: 2px solid var(--color-primary);
    background: rgba(31, 111, 235, 0.1);
    border-radius: 2px;
}

.minimap-node {
    position: absolute;
    background: rgba(74, 158, 255, 0.6);
    border-radius: 2px;
}

/* Properties Panel */
.workflow-properties {
    width: 280px;
    background: var(--color-bg-primary);
    border-left: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
}

.properties-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-light);
    font-weight: 600;
}

.properties-content {
    flex: 1;
    padding: var(--spacing-md);
    overflow-y: auto;
}

.properties-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

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

.property-label {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
}

.property-input {
    width: 100%;
    padding: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.property-textarea {
    min-height: 80px;
}