:root{--primary-color: #646cff;--primary-hover: #535bf2;--accent-color: #7c3aed;--background-primary: #0f0f23;--background-secondary: #1a1a2e;--background-tertiary: #16213e;--background-canvas: #0f172a;--text-primary: #f8fafc;--text-secondary: #cbd5e1;--text-muted: #64748b;--border-color: #334155;--success-color: #22c55e;--warning-color: #f59e0b;--error-color: #ef4444;--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--navbar-height: 60px;--component-bar-height: 80px;--terminal-height: 200px;--footer-height: 60px;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:linear-gradient(135deg,var(--background-primary) 0%,var(--background-secondary) 100%);color:var(--text-primary);line-height:1.6;min-height:100vh;overflow-x:hidden}#app{display:flex;flex-direction:column;min-height:100vh}.navbar{display:flex;align-items:center;justify-content:space-between;padding:0 var(--space-lg);height:var(--navbar-height);background:var(--background-secondary);border-bottom:1px solid var(--border-color);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);position:sticky;top:0;z-index:100}.navbar-brand{display:flex;align-items:center;gap:var(--space-sm)}.brand-icon{font-size:var(--font-size-xl)}.navbar-brand h1{font-size:var(--font-size-xl);font-weight:700;background:linear-gradient(135deg,var(--primary-color),var(--accent-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.navbar-nav{display:flex;align-items:center;gap:var(--space-sm)}.nav-btn{display:flex;align-items:center;gap:var(--space-xs);padding:var(--space-sm) var(--space-md);background:var(--background-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);text-decoration:none;font-size:var(--font-size-sm);font-weight:500;cursor:pointer;transition:all .3s ease;white-space:nowrap}.nav-btn:hover{background:var(--primary-color);border-color:var(--primary-color);transform:translateY(-2px);box-shadow:var(--shadow-md)}.nav-btn.primary{background:var(--primary-color);border-color:var(--primary-color)}.nav-btn.primary:hover{background:var(--primary-hover);border-color:var(--primary-hover)}.btn-icon{font-size:var(--font-size-base)}.mobile-menu-toggle{display:none;flex-direction:column;background:none;border:none;cursor:pointer;padding:var(--space-sm)}.mobile-menu-toggle span{width:25px;height:3px;background:var(--text-primary);margin:3px 0;transition:.3s;border-radius:2px}.mobile-menu-toggle{display:none;flex-direction:column;justify-content:space-around;width:30px;height:30px;background:transparent;border:none;cursor:pointer;padding:0}.mobile-menu-toggle span{width:100%;height:3px;background:var(--text-primary);border-radius:2px;transition:all .3s ease}.mobile-menu-toggle.active span:nth-child(1){transform:rotate(45deg) translate(8px,8px)}.mobile-menu-toggle.active span:nth-child(2){opacity:0}.mobile-menu-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(7px,-6px)}.component-bar{background:var(--background-tertiary);border-bottom:1px solid var(--border-color);padding:var(--space-md) 0;overflow-x:auto;overflow-y:hidden}.component-bar-container{display:flex;gap:var(--space-xl);padding:0 var(--space-lg);min-width:max-content}.component-group{display:flex;align-items:center;gap:var(--space-sm);white-space:nowrap}.group-label{font-size:var(--font-size-sm);font-weight:600;color:var(--text-secondary);margin-right:var(--space-sm)}.component-item{display:flex;align-items:center;gap:var(--space-xs);padding:var(--space-sm) var(--space-md);background:var(--background-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:grab;transition:all .2s ease;font-size:var(--font-size-sm);color:var(--text-primary);-webkit-user-select:none;user-select:none;touch-action:manipulation;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent;-webkit-user-drag:none;-khtml-user-drag:none;-moz-user-drag:none;-o-user-drag:none;position:relative;z-index:1}.component-item:hover{background:var(--primary-color);border-color:var(--primary-color);transform:translateY(-2px);box-shadow:var(--shadow-md)}.component-item:active{cursor:grabbing;transform:scale(.95)}@media(max-width:768px){.component-item:after{content:"👆 Tap to add";position:absolute;bottom:-20px;left:50%;transform:translate(-50%);font-size:10px;color:var(--text-muted);opacity:0;transition:opacity .3s ease;pointer-events:none;white-space:nowrap}.component-item:hover:after{opacity:1}.component-item{padding:var(--space-md);margin-bottom:var(--space-sm);min-height:44px}}.component-icon{font-size:var(--font-size-lg)}.mobile-instructions{display:none;background:linear-gradient(135deg,var(--primary-color),var(--accent-color));color:#fff;padding:var(--space-sm) var(--space-md);position:sticky;top:var(--navbar-height);z-index:50;box-shadow:var(--shadow-md)}.mobile-instructions-content{display:flex;align-items:center;justify-content:center;gap:var(--space-sm);max-width:1200px;margin:0 auto;position:relative}.mobile-instructions-icon{font-size:var(--font-size-lg)}.mobile-instructions-text{font-size:var(--font-size-sm);font-weight:500;text-align:center;flex:1}.mobile-instructions-close{background:none;border:none;color:#fff;font-size:var(--font-size-xl);cursor:pointer;padding:var(--space-xs);border-radius:var(--radius-sm);transition:background-color .2s ease;position:absolute;right:0}.mobile-instructions-close:hover{background-color:#fff3}@media(max-width:768px){.mobile-instructions{display:block}}.canvas-container{flex:1;position:relative;background:var(--background-canvas);margin:var(--space-lg);border-radius:var(--radius-lg);border:1px solid var(--border-color);overflow:hidden;min-height:400px}#design-canvas{width:100%;height:100%;cursor:crosshair;border-radius:var(--radius-lg);touch-action:none;-webkit-touch-callout:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;position:relative;z-index:10}.canvas-overlay{position:absolute;top:var(--space-md);right:var(--space-md);z-index:10}.connection-mode-toggle{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);background:var(--background-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.connection-mode-toggle input[type=checkbox]{margin:0}.connection-mode-toggle label{font-size:var(--font-size-sm);color:var(--text-secondary);cursor:pointer}.terminal-section{background:var(--background-secondary);border-top:1px solid var(--border-color);min-height:var(--terminal-height);display:flex;flex-direction:column;transition:all .3s ease}.terminal-header{display:flex;justify-content:space-between;align-items:center;padding:var(--space-md) var(--space-lg);border-bottom:1px solid var(--border-color);background:var(--background-tertiary)}.terminal-header h3{font-size:var(--font-size-lg);color:var(--text-primary);margin:0}.simulation-controls{display:flex;gap:var(--space-md);padding:var(--space-md) var(--space-lg);border-bottom:1px solid var(--border-color)}#command-input{flex:1;padding:var(--space-sm) var(--space-md);background:var(--background-canvas);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-family:Courier New,monospace;font-size:var(--font-size-sm)}#command-input::placeholder{color:var(--text-muted)}#command-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 2px #646cff33}#execute-command{padding:var(--space-sm) var(--space-lg);background:var(--primary-color);border:none;border-radius:var(--radius-md);color:#fff;cursor:pointer;font-weight:500;transition:all .3s ease}#execute-command:hover{background:var(--primary-hover);transform:translateY(-1px)}.terminal-output{flex:1;padding:var(--space-lg);background:var(--background-canvas);font-family:Courier New,monospace;font-size:var(--font-size-sm);color:var(--text-primary);overflow-y:auto;white-space:pre-wrap;min-height:120px}.terminal-output::-webkit-scrollbar{width:6px}.terminal-output::-webkit-scrollbar-track{background:var(--background-secondary)}.terminal-output::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:3px}.terminal-output::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.modal{position:fixed;top:0;left:0;width:100%;height:100%;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.modal.hidden{display:none}.modal-content{background:var(--background-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--space-xl);max-width:90vw;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-xl)}.modal-content h3{font-size:var(--font-size-xl);margin-bottom:var(--space-lg);color:var(--text-primary)}.modal-close{padding:var(--space-sm) var(--space-lg);background:var(--background-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);cursor:pointer;margin-top:var(--space-lg);transition:all .3s ease}.modal-close:hover{background:var(--primary-color);border-color:var(--primary-color)}.example-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--space-lg);margin-bottom:var(--space-lg)}.example-item{background:var(--background-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:var(--space-lg);cursor:pointer;transition:all .3s ease}.example-item:hover{background:var(--primary-color);border-color:var(--primary-color);transform:translateY(-2px)}.example-item h4{font-size:var(--font-size-lg);margin-bottom:var(--space-sm);color:var(--text-primary)}.example-item p{font-size:var(--font-size-sm);color:var(--text-secondary)}.compilation-options{display:flex;gap:var(--space-md);margin-bottom:var(--space-lg)}#compilation-target{flex:1;padding:var(--space-sm) var(--space-md);background:var(--background-canvas);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary)}#start-compilation{padding:var(--space-sm) var(--space-lg);background:var(--primary-color);border:none;border-radius:var(--radius-md);color:#fff;cursor:pointer;transition:all .3s ease}#start-compilation:hover{background:var(--primary-hover)}.footer{background:var(--background-secondary);border-top:1px solid var(--border-color);padding:var(--space-lg) var(--space-xl);margin-top:auto}.footer-left p{color:var(--text-secondary);margin-bottom:var(--space-sm)}.social-links{display:flex;gap:var(--space-lg)}.social-link{display:flex;align-items:center;gap:var(--space-xs);color:var(--text-secondary);text-decoration:none;font-size:var(--font-size-sm);transition:color .3s ease}.social-link:hover{color:var(--primary-color)}.social-icon{font-size:var(--font-size-base)}.footer-right p{color:var(--text-muted);font-size:var(--font-size-sm)}.footer-right a{color:var(--primary-color);text-decoration:none}.footer-right a:hover{text-decoration:underline}.canvas-component{position:absolute;background:var(--background-secondary);border:2px solid var(--primary-color);border-radius:var(--radius-md);padding:var(--space-md);cursor:move;-webkit-user-select:none;user-select:none;box-shadow:var(--shadow-md);min-width:100px;min-height:60px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.canvas-component.selected{border-color:var(--accent-color);box-shadow:var(--shadow-lg)}.canvas-component .component-label{font-size:var(--font-size-sm);font-weight:600;color:var(--text-primary);text-align:center;margin-bottom:var(--space-xs)}.canvas-component .component-ports{display:flex;justify-content:space-between}.component-port{width:8px;height:8px;background:var(--border-color);border-radius:50%;cursor:pointer;transition:all .3s ease}.component-port:hover{background:var(--primary-color);transform:scale(1.5)}.component-port.input{background:var(--success-color)}.component-port.output{background:var(--warning-color)}@media(max-width:1024px){.navbar{padding:0 var(--space-md)}.canvas-container{margin:var(--space-md)}.component-bar-container{padding:0 var(--space-md)}}@media(max-width:768px){.navbar-nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--background-secondary);border-top:1px solid var(--border-color);flex-direction:column;padding:var(--space-md);gap:var(--space-sm)}.navbar-nav.active,.mobile-menu-toggle{display:flex}.nav-btn{width:100%;justify-content:center}.btn-text{display:inline}.component-bar{padding:var(--space-sm) var(--space-md)}.component-bar-container{gap:var(--space-md);padding:0 var(--space-sm);overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch}.component-group{flex-direction:column;align-items:flex-start;gap:var(--space-xs)}.group-label{margin-right:0;margin-bottom:var(--space-xs)}.canvas-container{margin:var(--space-sm);min-height:300px}.simulation-controls{flex-direction:column;gap:var(--space-sm)}.footer-content{flex-direction:column;text-align:center;gap:var(--space-md)}.footer-right{text-align:center}.social-links{justify-content:center}}@media(max-width:480px){.navbar{padding:0 var(--space-sm)}.navbar-brand h1{font-size:var(--font-size-lg)}.component-item{padding:var(--space-xs) var(--space-sm);font-size:var(--font-size-xs)}.component-icon{font-size:var(--font-size-base)}.terminal-section{min-height:150px}.terminal-output{min-height:80px;font-size:var(--font-size-xs)}.canvas-overlay{top:var(--space-sm);right:var(--space-sm)}.connection-mode-toggle{padding:var(--space-xs) var(--space-sm);font-size:var(--font-size-xs)}}.hidden{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.loading{opacity:.6;pointer-events:none}.loading:after{content:"";position:absolute;top:50%;left:50%;width:20px;height:20px;margin:-10px 0 0 -10px;border:2px solid var(--primary-color);border-radius:50%;border-top-color:transparent;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .3s ease-out}@media print{.navbar,.component-bar,.terminal-section,.footer{display:none}.canvas-container{margin:0;border:none;box-shadow:none}}.connection-mode-toggle label{font-size:.9rem;color:#ccc}.simulation-panel{position:absolute;bottom:0;left:250px;right:0;height:200px;background-color:#2d2d2d;border-top:1px solid #444;padding:1rem;transition:transform .3s ease}.simulation-panel.hidden{transform:translateY(100%)}.simulation-panel h3{margin-bottom:1rem;color:#fff}.simulation-controls{display:flex;gap:1rem;margin-bottom:1rem}#command-input{flex:1;padding:.5rem;background-color:#3d3d3d;border:1px solid #555;border-radius:4px;color:#fff}#command-input::placeholder{color:#999}#execute-command{padding:.5rem 1rem;background-color:#646cff;color:#fff;border:none;border-radius:4px;cursor:pointer}#execute-command:hover{background-color:#535bf2}#simulation-output{background-color:#1a1a1a;border:1px solid #555;border-radius:4px;padding:1rem;height:100px;overflow-y:auto;font-family:Courier New,monospace;font-size:.9rem;color:#ccc}.canvas-component{position:absolute;background-color:#3d3d3d;border:2px solid #646cff;border-radius:8px;padding:1rem;min-width:100px;min-height:60px;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:move;-webkit-user-select:none;user-select:none;box-shadow:0 4px 12px #0000004d}.canvas-component.selected{border-color:gold;box-shadow:0 0 20px #ffd7004d}.canvas-component.dragging{opacity:.8;transform:scale(1.05)}.canvas-component .component-icon{font-size:2rem;margin-bottom:.5rem}.canvas-component .component-label{color:#fff;font-size:.9rem;text-align:center}.connection-line{stroke:#646cff;stroke-width:3;fill:none;pointer-events:stroke;cursor:pointer}.connection-line:hover,.connection-line.selected{stroke:gold;stroke-width:4}.connection-point{fill:#646cff;stroke:#fff;stroke-width:2;cursor:pointer}.connection-point:hover,.connection-point.active{fill:gold;r:8}.footer{background-color:#1a1a1a;border-top:1px solid #444;padding:1rem 2rem;margin-top:auto}.footer-content{display:flex;justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto}.footer-left,.footer-right{display:flex;flex-direction:column;gap:.25rem}.footer-right{text-align:right}.footer p{margin:0;font-size:.9rem;color:#ccc}.footer a{color:#646cff;text-decoration:none;transition:color .3s}.footer a:hover{color:#535bf2;text-decoration:underline}.social-links{display:flex;gap:1rem;margin-top:.5rem}.social-link{display:flex;align-items:center;gap:.5rem;color:#646cff!important;text-decoration:none;font-size:.85rem;transition:all .3s ease;padding:.25rem .5rem;border-radius:4px}.social-link:hover{color:#535bf2!important;background-color:#646cff1a;text-decoration:none;transform:translateY(-1px)}.social-link svg{transition:transform .3s ease}.social-link:hover svg{transform:scale(1.1)}.validation-panel{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);width:600px;max-height:70vh;background-color:#2d2d2d;border:1px solid #555;border-radius:8px;padding:2rem;box-shadow:0 10px 30px #00000080;z-index:1000;overflow-y:auto}.validation-panel.hidden{display:none}.validation-panel h3{margin-bottom:1.5rem;color:#fff;border-bottom:1px solid #555;padding-bottom:.5rem}#validation-results{margin-bottom:1.5rem;max-height:400px;overflow-y:auto}.validation-item{padding:.75rem;margin:.5rem 0;border-radius:4px;border-left:4px solid}.validation-item.success{background-color:#4caf501a;border-left-color:#4caf50;color:#81c784}.validation-item.warning{background-color:#ffc1071a;border-left-color:#ffc107;color:#ffb74d}.validation-item.error{background-color:#f443361a;border-left-color:#f44336;color:#e57373}.validation-item h4{margin:0 0 .5rem;font-size:1rem}.validation-item p{margin:0;font-size:.9rem;opacity:.9}.compilation-panel{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);width:800px;max-height:80vh;background-color:#2d2d2d;border:1px solid #555;border-radius:8px;padding:2rem;box-shadow:0 10px 30px #00000080;z-index:1000;overflow-y:auto}.compilation-panel.hidden{display:none}.compilation-panel h3{margin-bottom:1.5rem;color:#fff;border-bottom:1px solid #555;padding-bottom:.5rem}.compilation-options{display:flex;gap:1rem;margin-bottom:1.5rem;align-items:center}#compilation-target{padding:.5rem;background-color:#3d3d3d;border:1px solid #555;border-radius:4px;color:#fff;font-size:.9rem}#compilation-output{background-color:#1a1a1a;border:1px solid #555;border-radius:4px;padding:1rem;min-height:300px;max-height:500px;overflow-y:auto;font-family:Courier New,monospace;font-size:.85rem;color:#ccc;white-space:pre-wrap;margin-bottom:1.5rem}#close-validation,#close-compilation{padding:.5rem 1.5rem;background-color:#646cff;color:#fff;border:none;border-radius:4px;cursor:pointer;float:right}#close-validation:hover,#close-compilation:hover{background-color:#535bf2}#start-compilation{padding:.5rem 1rem;background-color:#4caf50;color:#fff;border:none;border-radius:4px;cursor:pointer}#start-compilation:hover{background-color:#45a049}@media(max-width:768px){.footer-content{flex-direction:column;text-align:center;gap:1rem}.footer-right{text-align:center}.validation-panel,.compilation-panel{width:90vw;max-width:none;margin:1rem}.compilation-options{flex-direction:column;align-items:stretch}}.example-modal{position:fixed;top:0;left:0;width:100vw;height:100vh;background-color:#000c;display:flex;justify-content:center;align-items:center;z-index:2000}.example-modal.hidden{display:none}.modal-content{background-color:#2d2d2d;border-radius:8px;padding:2rem;max-width:800px;max-height:80vh;overflow-y:auto;border:1px solid #555}.modal-content h3{margin-bottom:1.5rem;color:#fff;text-align:center;border-bottom:1px solid #555;padding-bottom:.5rem}.example-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1rem;margin-bottom:2rem}.example-item{background-color:#3d3d3d;border:1px solid #555;border-radius:6px;padding:1.5rem;cursor:pointer;transition:all .3s}.example-item:hover{background-color:#4d4d4d;border-color:#646cff;transform:translateY(-2px)}.example-item h4{margin:0 0 .5rem;color:#fff;font-size:1.1rem}.example-item p{margin:0;color:#ccc;font-size:.9rem;line-height:1.4}#close-examples{display:block;margin:0 auto;padding:.5rem 2rem;background-color:#646cff;color:#fff;border:none;border-radius:4px;cursor:pointer}#close-examples:hover{background-color:#535bf2}.notification{position:fixed;top:20px;right:20px;padding:1rem 1.5rem;border-radius:6px;color:#fff;font-weight:500;z-index:10000;transform:translate(400px);transition:transform .3s ease;box-shadow:0 4px 12px #0000004d}.notification.show{transform:translate(0)}.notification.success{background-color:#059669;border-left:4px solid #10b981}.notification.error{background-color:#dc2626;border-left:4px solid #ef4444}.notification.info{background-color:#2563eb;border-left:4px solid #3b82f6}