/* =============================================================================
   3K FreeFire Studio — Flow Editor (Weavy-Style)
   Premium dark-theme node-based workflow canvas
   ============================================================================= */

/* ─── Canvas Container ─────────────────────────────────────────────────────── */
.flow-workspace {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #0f0f14;
    display: flex;
    flex-direction: column;
}

.flow-toolbar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(18, 18, 26, 0.95);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    z-index: 100;
    backdrop-filter: blur(12px);
    flex-shrink: 0;
}

.flow-toolbar .toolbar-title {
    font-size: 14px;
    font-weight: 700;
    color: #e0e0e0;
    margin-right: 12px;
    font-family: 'Inter', sans-serif;
}

.flow-toolbar .flow-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 8px;
    background: rgba(255,255,255,0.04);
    color: #b0b0b8;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    font-family: 'Inter', sans-serif;
    white-space: nowrap;
}

.flow-toolbar .flow-btn:hover {
    background: rgba(255,255,255,0.08);
    color: #fff;
    border-color: rgba(255,255,255,0.15);
}

.flow-toolbar .flow-btn-run {
    background: linear-gradient(135deg, #22c55e, #16a34a);
    color: white;
    border: none;
    font-weight: 600;
}

.flow-toolbar .flow-btn-run:hover {
    background: linear-gradient(135deg, #16a34a, #15803d);
    box-shadow: 0 0 12px rgba(34,197,94,0.3);
}

.flow-toolbar .toolbar-divider {
    width: 1px;
    height: 24px;
    background: rgba(255,255,255,0.08);
    margin: 0 6px;
}

/* ─── Canvas ────────────────────────────────────────────────────────────────── */
.flow-canvas-container {
    flex: 1;
    position: relative;
    overflow: hidden;
    cursor: grab;
}

.flow-canvas-container.dragging {
    cursor: grabbing;
}

.flow-canvas {
    position: absolute;
    top: 0;
    left: 0;
    transform-origin: 0 0;
}

/* ─── Grid Background ────────────────────────────────────────────────────── */
.flow-canvas-container::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle, rgba(255,255,255,0.04) 1px, transparent 1px);
    background-size: 24px 24px;
    pointer-events: none;
    z-index: 0;
}

/* ─── Nodes ──────────────────────────────────────────────────────────────── */
.flow-node {
    position: absolute;
    min-width: 220px;
    background: #1a1a24;
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.4);
    font-family: 'Inter', sans-serif;
    user-select: none;
    z-index: 10;
    transition: box-shadow 0.2s;
}

.flow-node:hover {
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

.flow-node.selected {
    border-color: rgba(99,102,241,0.6);
    box-shadow: 0 0 0 2px rgba(99,102,241,0.3), 0 8px 32px rgba(0,0,0,0.5);
}

.flow-node.running {
    border-color: rgba(34,197,94,0.5);
    box-shadow: 0 0 0 2px rgba(34,197,94,0.2), 0 0 20px rgba(34,197,94,0.1);
}

.flow-node.error {
    border-color: rgba(239,68,68,0.5);
}

/* Node Header */
.flow-node-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    cursor: move;
}

.flow-node-header .node-icon {
    font-size: 16px;
}

.flow-node-header .node-title {
    font-size: 12px;
    font-weight: 600;
    color: #e0e0e0;
    flex: 1;
}

.flow-node-header .node-delete {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: none;
    background: rgba(255,255,255,0.06);
    color: rgba(255,255,255,0.3);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    opacity: 0;
    transition: all 0.15s;
}

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

.flow-node-header .node-delete:hover {
    background: rgba(239,68,68,0.3);
    color: #f87171;
}

/* Node Body */
.flow-node-body {
    padding: 12px 14px;
}

/* Image Preview inside node (Weavy signature feature) */
.flow-node-preview {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 8px;
    overflow: hidden;
    background: repeating-conic-gradient(#222 0% 25%, #1a1a24 0% 50%) 50%/16px 16px;
    margin-bottom: 10px;
    position: relative;
    border: 1px solid rgba(255,255,255,0.04);
}

.flow-node-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.flow-node-preview .preview-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.2);
    font-size: 11px;
    gap: 4px;
}

.flow-node-preview .preview-placeholder .placeholder-icon {
    font-size: 24px;
    opacity: 0.3;
}

/* Node progress bar */
.flow-node-progress {
    height: 3px;
    background: rgba(255,255,255,0.05);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 8px;
}

.flow-node-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #22c55e, #3b82f6);
    border-radius: 2px;
    width: 0%;
    transition: width 0.3s;
}

/* ─── Node Input Fields ──────────────────────────────────────────────────── */
.flow-field {
    margin-bottom: 8px;
}

.flow-field label {
    display: block;
    font-size: 10px;
    font-weight: 600;
    color: rgba(255,255,255,0.4);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.flow-field textarea,
.flow-field input[type="text"],
.flow-field select {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 6px;
    background: rgba(0,0,0,0.3);
    color: #e0e0e0;
    font-size: 12px;
    font-family: 'Inter', sans-serif;
    resize: vertical;
    outline: none;
    transition: border-color 0.15s;
    box-sizing: border-box;
}

.flow-field textarea:focus,
.flow-field input[type="text"]:focus {
    border-color: rgba(99,102,241,0.5);
}

.flow-field textarea {
    min-height: 60px;
}

.flow-field .field-btn {
    width: 100%;
    padding: 8px;
    border: 1px dashed rgba(255,255,255,0.12);
    border-radius: 6px;
    background: transparent;
    color: rgba(255,255,255,0.4);
    font-size: 11px;
    cursor: pointer;
    transition: all 0.15s;
}

.flow-field .field-btn:hover {
    border-color: rgba(99,102,241,0.4);
    color: rgba(255,255,255,0.7);
    background: rgba(99,102,241,0.05);
}

/* ─── Ports (Connection Points) ──────────────────────────────────────────── */
.flow-port {
    position: absolute;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid;
    background: #1a1a24;
    cursor: crosshair;
    z-index: 20;
    transition: transform 0.15s, box-shadow 0.15s;
}

.flow-port:hover {
    transform: scale(1.3);
}

/* Port types by color */
.flow-port.port-image {
    border-color: #22c55e;
}

.flow-port.port-image:hover {
    box-shadow: 0 0 8px rgba(34,197,94,0.5);
}

.flow-port.port-text {
    border-color: #a78bfa;
}

.flow-port.port-text:hover {
    box-shadow: 0 0 8px rgba(167,139,250,0.5);
}

.flow-port.port-config {
    border-color: #f59e0b;
}

.flow-port.port-config:hover {
    box-shadow: 0 0 8px rgba(245,158,11,0.5);
}

/* Port connected state */
.flow-port.connected {
    background: currentColor;
}

.flow-port.port-image.connected { background: #22c55e; }
.flow-port.port-text.connected { background: #a78bfa; }
.flow-port.port-config.connected { background: #f59e0b; }

/* Port labels */
.flow-port-label {
    position: absolute;
    font-size: 9px;
    font-weight: 500;
    color: rgba(255,255,255,0.35);
    white-space: nowrap;
    pointer-events: none;
}

/* Input port labels (left side) */
.flow-port.input ~ .flow-port-label { left: 20px; }
/* Output port labels (right side) */
.flow-port.output ~ .flow-port-label { right: 20px; }

/* ─── Connections (SVG Lines) ────────────────────────────────────────────── */
.flow-connections-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 5;
}

.flow-connection {
    fill: none;
    stroke-width: 2.5;
    stroke-linecap: round;
}

.flow-connection.conn-image { stroke: #22c55e; }
.flow-connection.conn-text { stroke: #a78bfa; }
.flow-connection.conn-config { stroke: #f59e0b; }

.flow-connection-temp {
    fill: none;
    stroke: rgba(255,255,255,0.3);
    stroke-width: 2;
    stroke-dasharray: 6 4;
    stroke-linecap: round;
}

/* ─── Status Bar ─────────────────────────────────────────────────────────── */
.flow-status-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 16px;
    background: rgba(18,18,26,0.95);
    border-top: 1px solid rgba(255,255,255,0.06);
    font-size: 11px;
    color: rgba(255,255,255,0.35);
    flex-shrink: 0;
}

.flow-status-bar .status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #22c55e;
    box-shadow: 0 0 4px rgba(34,197,94,0.5);
}

/* ─── Minimap ────────────────────────────────────────────────────────────── */
.flow-minimap {
    position: absolute;
    bottom: 48px;
    right: 16px;
    width: 180px;
    height: 120px;
    background: rgba(18,18,26,0.9);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 8px;
    overflow: hidden;
    z-index: 50;
}

/* ─── Context Menu ───────────────────────────────────────────────────────── */
.flow-context-menu {
    position: fixed;
    background: #1e1e2a;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    padding: 6px;
    min-width: 200px;
    max-height: 70vh;
    overflow-y: auto;
    box-shadow: 0 12px 40px rgba(0,0,0,0.6);
    z-index: 1000;
    font-family: 'Inter', sans-serif;
}

.flow-context-menu .menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: 6px;
    color: #d0d0d8;
    font-size: 12px;
    cursor: pointer;
    transition: background 0.1s;
}

.flow-context-menu .menu-item:hover {
    background: rgba(99,102,241,0.15);
    color: white;
}

.flow-context-menu .menu-item .menu-icon {
    font-size: 14px;
    width: 20px;
    text-align: center;
}

.flow-context-menu .menu-divider {
    height: 1px;
    background: rgba(255,255,255,0.06);
    margin: 4px 8px;
}

.flow-context-menu .menu-label {
    padding: 6px 12px 2px;
    font-size: 10px;
    font-weight: 700;
    color: rgba(255,255,255,0.25);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ─── Zoom Controls ──────────────────────────────────────────────────────── */
.flow-zoom-controls {
    position: absolute;
    bottom: 48px;
    left: 16px;
    display: flex;
    gap: 2px;
    background: rgba(18,18,26,0.9);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 8px;
    padding: 2px;
    z-index: 50;
}

.flow-zoom-controls button {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: rgba(255,255,255,0.5);
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
}

.flow-zoom-controls button:hover {
    background: rgba(255,255,255,0.1);
    color: white;
}

/* ─── Execution Overlay ──────────────────────────────────────────────────── */
.flow-execution-overlay {
    position: absolute;
    top: 60px;
    right: 16px;
    background: rgba(18,18,26,0.95);
    border: 1px solid rgba(34,197,94,0.3);
    border-radius: 12px;
    padding: 16px 20px;
    z-index: 100;
    display: none;
    min-width: 260px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

.flow-execution-overlay.active {
    display: block;
}

.flow-execution-overlay .exec-title {
    font-size: 13px;
    font-weight: 600;
    color: white;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.flow-execution-overlay .exec-step {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    font-size: 12px;
    color: rgba(255,255,255,0.5);
}

.flow-execution-overlay .exec-step.active {
    color: #22c55e;
}

.flow-execution-overlay .exec-step.done {
    color: rgba(255,255,255,0.3);
}

.flow-execution-overlay .exec-step .step-indicator {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid currentColor;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 9px;
    flex-shrink: 0;
}

.flow-execution-overlay .exec-step.done .step-indicator {
    background: rgba(34,197,94,0.2);
    border-color: #22c55e;
    color: #22c55e;
}

/* ─── Animations ─────────────────────────────────────────────────────────── */
@keyframes flow-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.flow-node.running .flow-node-header {
    animation: flow-pulse 1.5s ease-in-out infinite;
}

@keyframes flow-connection-dash {
    to { stroke-dashoffset: -20; }
}

.flow-connection.animating {
    stroke-dasharray: 8 4;
    animation: flow-connection-dash 0.6s linear infinite;
}