/* Base Reset */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    background-color: #1a1a1a;
    color: #ecf0f1;
    font-family: 'Inter', sans-serif;
    overflow: hidden;
}

/* Header */
header {
    height: 60px;
    background: #2d3436;
    border-bottom: 1px solid #333;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    z-index: 100;
    position: relative;
}

.logo-area {
    display: flex;
    background: #111;
    border-bottom: 1px solid #333;
    z-index: 1000;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1.1rem;
}

/* Nav Tabs */
.nav-tabs {
    display: flex;
    gap: 5px;
    height: 100%;
}

.nav-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 15px;
    height: 100%;
    color: #888;
    cursor: pointer;
    font-size: 0.95rem;
    border-bottom: 3px solid transparent;
    transition: all 0.2s;
}

.nav-tab:hover {
    color: #ccc;
    background: rgba(255, 255, 255, 0.05);
}

.nav-tab.active {
    color: #fff;
    border-bottom: 3px solid #ff0000;
    font-weight: 600;
    background: linear-gradient(to top, rgba(255, 0, 0, 0.1), transparent);
}

.actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-primary {
    background: #ff0000;
    border: none;
    padding: 8px 16px;
    color: white;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background 0.2s;
}

.btn-primary:hover {
    background: #cc0000;
}

.btn-secondary {
    background: #333;
    border: none;
    padding: 8px 16px;
    color: #ccc;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-secondary:hover {
    background: #444;
    color: white;
}

.btn-api {
    background: #222;
    border: 1px solid #444;
    padding: 6px 12px;
    color: #aaa;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
}

.btn-api:hover {
    border-color: #ff0000;
    color: white;
}

/* Workspace Layout */
.workspace {
    display: flex;
    height: calc(100vh - 60px);
    position: relative;
}

/* Floating Toolbar */
.floating-toolbar {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 220px;
    background: rgba(45, 52, 54, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid #444;
    border-radius: 12px;
    z-index: 20;
    padding: 10px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.toolbar-header {
    padding: 10px;
    border-bottom: 1px solid #444;
    font-weight: 600;
    color: #eee;
}

.toolbar-section {
    margin-top: 15px;
}

.section-title {
    font-size: 0.75rem;
    color: #888;
    text-transform: uppercase;
    margin-bottom: 8px;
    padding-left: 5px;
}

.toolbar-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: #363636;
    border-radius: 6px;
    margin-bottom: 6px;
    cursor: grab;
    transition: transform 0.1s, background 0.1s;
    font-size: 0.9rem;
}

.toolbar-item:hover {
    background: #444;
    transform: translateX(2px);
}

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

/* Canvas */
.canvas-container {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: #1e1e1e;
    cursor: grab;
}

.canvas-container:active {
    cursor: grabbing;
}

/* Grid Background */
.grid-background {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background-size: 40px 40px;
    background-image: linear-gradient(to right, #ffffff05 1px, transparent 1px),
        linear-gradient(to bottom, #ffffff05 1px, transparent 1px);
    pointer-events: none;
    z-index: 0;
}

/* Layers (Pan/Zoom Targets) */
.layer {
    position: absolute;
    top: 0;
    left: 0;
    transform-origin: 0 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.nodes-layer {
    z-index: 10;
    pointer-events: auto;
}

/* Nodes need events */
.connections-layer {
    z-index: 5;
    pointer-events: none;
    width: 100%;
    height: 100%;
    overflow: visible;
}

.connections-layer path {
    fill: none;
    stroke: #666;
    stroke-width: 2px;
}

/* Node Styles */
.node {
    position: absolute;
    width: 260px;
    background: rgba(30, 30, 30, 0.9);
    border: 1px solid #555;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    color: white;
    user-select: none;
    transition: box-shadow 0.2s, border-color 0.2s;
}

.node:hover {
    border-color: #888;
}

.node.selected {
    border-color: #FFD700;
    box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.3);
}

.node-header {
    padding: 10px 15px;
    border-bottom: 1px solid #444;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 10px 10px 0 0;
    background: rgba(255, 255, 255, 0.02);
}

.node-body {
    padding: 15px;
    font-size: 0.85rem;
    color: #ccc;
    line-height: 1.4;
    min-height: 60px;
}

/* Sockets */
.socket {
    width: 20px;
    /* Increased from 12px for better hitbox */
    height: 20px;
    background: #888;
    border-radius: 50%;
    position: absolute;
    top: 36px;
    /* Adjusted centering */
    border: 3px solid #1e1e1e;
    /* Thicker border */
    transition: background 0.2s, transform 0.2s;
    z-index: 100;
    /* Ensure on top of everything inside node */
    cursor: crosshair;
}

.socket:hover {
    background: #fff;
    transform: scale(1.2);
    /* Visual pop on hover */
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.socket.input {
    left: -10px;
    /* Adjusted for larger size */
}

.socket.output {
    right: -10px;
    /* Adjusted for larger size */
}

/* Status Indicators */
.node-status {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #444;
}

.node-status.running {
    background: #F1C40F;
    box-shadow: 0 0 8px #F1C40F;
    animation: pulse 1s infinite;
}

.node-status.completed {
    background: #2ECC71;
    box-shadow: 0 0 5px #2ECC71;
}

.node-status.error {
    background: #E74C3C;
}

@keyframes pulse {
    0% {
        opacity: 0.5;
    }

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0.5;
    }
}

/* Sidebar */
.sidebar {
    width: 320px;
    background: #222;
    border-left: 1px solid #333;
    display: flex;
    flex-direction: column;
    z-index: 30;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid #333;
    font-weight: 600;
    font-size: 1rem;
    color: #eee;
}

.sidebar-content {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
}

/* Sidebar Form Elements */
.prop-group {
    margin-bottom: 20px;
}

.prop-group label {
    display: block;
    font-size: 0.8rem;
    color: #888;
    margin-bottom: 8px;
}

.prop-group input,
.prop-group select,
.prop-group textarea {
    width: 100%;
    padding: 10px;
    background: #333;
    border: 1px solid #444;
    color: white;
    border-radius: 6px;
    font-size: 0.9rem;
    font-family: inherit;
}

.prop-group input:focus,
.prop-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

.prop-group textarea {
    resize: vertical;
    min-height: 300px;
    line-height: 1.6;
    font-size: 0.95rem;
}

.run-node-btn {
    width: 100%;
    padding: 12px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    border: none;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.run-node-btn:hover {
    opacity: 0.9;
}

.empty-state {
    text-align: center;
    color: #555;
    margin-top: 100px;
}

.empty-state i {
    font-size: 2rem;
    margin-bottom: 15px;
}