:root{--bg-color: #121212;--bg-darker: #0a0a0a;--bg-panel: #1e1e1e;--text-primary: #e0e0e0;--text-secondary: #a0a0a0;--accent-color: #00bcd4;--accent-hover: #00acc1;--border-color: #333;--node-bg: #2a2a2a;--node-border: #444;--socket-input: #4caf50;--socket-output: #ff9800;--socket-param: #2196f3;--grid-color: #222;--preview-color: #013b57;--preview-hover-color: #004b70;--success-color: #124912;--success-hover-color: #1c681c;--node-error-color: #ff4444;--drawer-width: 300px;--alert-color: #e45050}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,system-ui,-apple-system,sans-serif;background-color:var(--bg-color);color:var(--text-primary);overflow:hidden;width:100vw;height:100vh}#app{display:flex;flex-direction:column;height:100%}#toolbar{height:50px;background-color:var(--bg-panel);border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;padding:0 20px;z-index:10}.logo{font-weight:700;font-size:1.1rem;letter-spacing:1px}.logo img{height:30px;margin-top:4px}button{background-color:var(--bg-darker);border:1px solid var(--border-color);color:var(--text-primary);padding:6px 12px;cursor:pointer;border-radius:4px;transition:all .2s}button:hover{background-color:var(--border-color)}button.primary{background-color:var(--accent-color);color:#000;font-weight:700;border:none}button.primary:hover{background-color:var(--accent-hover)}button.preview{background-color:var(--preview-color);color:#fff;font-weight:700;border:none}button.preview:hover{background-color:var(--preview-hover-color)}button.new{background-color:var(--success-color);color:#fff;font-weight:700;border:none}button.new:hover{background-color:var(--success-hover-color)}#editor-container{flex:1;position:relative;overflow:hidden;background-color:var(--bg-darker);background-image:linear-gradient(var(--grid-color) 1px,transparent 1px),linear-gradient(90deg,var(--grid-color) 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var(--border-color);display:flex;justify-content:space-between;align-items:center}#properties-content{padding:15px;overflow-y:auto;flex:1}.modal{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#000000b3;display:flex;justify-content:center;align-items:flex-start;padding-top:50px;z-index:100}.modal.hidden{display:none}.modal-content{background-color:var(--bg-panel);width:900px;max-width:90%;max-height:80%;border-radius:8px;border:1px solid var(--border-color);display:flex;flex-direction:column}.modal-header{padding:15px;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}.tabs{display:flex;background:var(--bg-darker);border-bottom:1px solid var(--border-color);overflow-x:auto;min-height:42px}.tab-btn{padding:10px 15px;cursor:pointer;border-right:1px solid 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