: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 #0000000d;--shadow-md:0 4px 6px -1px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a;--shadow-xl:0 20px 25px -5px #0000001a}*{box-sizing:border-box;margin:0;padding:0}body{background:linear-gradient(135deg, var(--background-primary) 0%, var(--background-secondary) 100%);color:var(--text-primary);min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.6;overflow-x:hidden}#app{flex-direction:column;min-height:100vh;display:flex}.navbar{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);z-index:100;justify-content:space-between;align-items:center;display:flex;position:sticky;top:0}.navbar-brand{align-items:center;gap:var(--space-sm);display:flex}.brand-icon{font-size:var(--font-size-xl)}.navbar-brand h1{font-size:var(--font-size-xl);background:linear-gradient(135deg, var(--primary-color), var(--accent-color));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-weight:700}.navbar-nav{align-items:center;gap:var(--space-sm);display:flex}.nav-btn{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);font-size:var(--font-size-sm);cursor:pointer;white-space:nowrap;font-weight:500;text-decoration:none;transition:all .3s;display:flex}.nav-btn:hover{background:var(--primary-color);border-color:var(--primary-color);box-shadow:var(--shadow-md);transform:translateY(-2px)}.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{cursor:pointer;padding:var(--space-sm);background:0 0;border:none;flex-direction:column;display:none}.mobile-menu-toggle span{background:var(--text-primary);border-radius:2px;width:25px;height:3px;margin:3px 0;transition:all .3s}.mobile-menu-toggle{cursor:pointer;background:0 0;border:none;flex-direction:column;justify-content:space-around;width:30px;height:30px;padding:0;display:none}.mobile-menu-toggle span{background:var(--text-primary);border-radius:2px;width:100%;height:3px;transition:all .3s}.mobile-menu-toggle.active span:first-child{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:auto hidden}.component-bar-container{gap:var(--space-xl);padding:0 var(--space-lg);min-width:max-content;display:flex}.component-group{align-items:center;gap:var(--space-sm);white-space:nowrap;display:flex}.group-label{font-size:var(--font-size-sm);color:var(--text-secondary);margin-right:var(--space-sm);font-weight:600}.component-item{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;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;z-index:1;transition:all .2s;display:flex;position:relative}.component-item:hover{background:var(--primary-color);border-color:var(--primary-color);box-shadow:var(--shadow-md);transform:translateY(-2px)}.component-item:active{cursor:grabbing;transform:scale(.95)}@media (width<=768px){.component-item:after{content:"👆 Tap to add";color:var(--text-muted);opacity:0;pointer-events:none;white-space:nowrap;font-size:10px;transition:opacity .3s;position:absolute;bottom:-20px;left:50%;transform:translate(-50%)}.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{background:linear-gradient(135deg, var(--primary-color), var(--accent-color));color:#fff;padding:var(--space-sm) var(--space-md);top:var(--navbar-height);z-index:50;box-shadow:var(--shadow-md);display:none;position:sticky}.mobile-instructions-content{justify-content:center;align-items:center;gap:var(--space-sm);max-width:1200px;margin:0 auto;display:flex;position:relative}.mobile-instructions-icon{font-size:var(--font-size-lg)}.mobile-instructions-text{font-size:var(--font-size-sm);text-align:center;flex:1;font-weight:500}.mobile-instructions-close{color:#fff;font-size:var(--font-size-xl);cursor:pointer;padding:var(--space-xs);border-radius:var(--radius-sm);background:0 0;border:none;transition:background-color .2s;position:absolute;right:0}.mobile-instructions-close:hover{background-color:#fff3}@media (width<=768px){.mobile-instructions{display:block}}.canvas-container{background:var(--background-canvas);margin:var(--space-lg);border-radius:var(--radius-lg);border:1px solid var(--border-color);flex:1;min-height:400px;position:relative;overflow:hidden}#design-canvas{cursor:crosshair;border-radius:var(--radius-lg);touch-action:none;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;z-index:10;width:100%;height:100%;position:relative}.canvas-overlay{top:var(--space-md);right:var(--space-md);z-index:10;position:absolute}.connection-mode-toggle{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);display:flex}.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);flex-direction:column;transition:all .3s;display:flex}.terminal-header{padding:var(--space-md) var(--space-lg);border-bottom:1px solid var(--border-color);background:var(--background-tertiary);justify-content:space-between;align-items:center;display:flex}.terminal-header h3{font-size:var(--font-size-lg);color:var(--text-primary);margin:0}.simulation-controls{gap:var(--space-md);padding:var(--space-md) var(--space-lg);border-bottom:1px solid var(--border-color);display:flex}#command-input{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);flex:1}#command-input:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 2px #646cff33}#execute-command{padding:var(--space-sm) var(--space-lg);background:var(--primary-color);border-radius:var(--radius-md);color:#fff;cursor:pointer;border:none;font-weight:500;transition:all .3s}#execute-command:hover{background:var(--primary-hover);transform:translateY(-1px)}.terminal-output{padding:var(--space-lg);background:var(--background-canvas);font-family:Courier New,monospace;font-size:var(--font-size-sm);color:var(--text-primary);white-space:pre-wrap;flex:1;min-height:120px;overflow-y:auto}.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{z-index:1000;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#000000b3;justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:fixed;top:0;left:0}.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;box-shadow:var(--shadow-xl);overflow-y:auto}.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}.modal-close:hover{background:var(--primary-color);border-color:var(--primary-color)}.example-grid{gap:var(--space-lg);margin-bottom:var(--space-lg);grid-template-columns:repeat(auto-fit,minmax(250px,1fr));display:grid}.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}.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{gap:var(--space-md);margin-bottom:var(--space-lg);display:flex}#compilation-target{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);flex:1}#start-compilation{padding:var(--space-sm) var(--space-lg);background:var(--primary-color);border-radius:var(--radius-md);color:#fff;cursor:pointer;border:none;transition:all .3s}#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{gap:var(--space-lg);display:flex}.social-link{align-items:center;gap:var(--space-xs);color:var(--text-secondary);font-size:var(--font-size-sm);text-decoration:none;transition:color .3s;display:flex}.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{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);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);min-width:100px;min-height:60px;position:absolute}.canvas-component .component-label{font-size:var(--font-size-sm);color:var(--text-primary);text-align:center;margin-bottom:var(--space-xs);font-weight:600}.canvas-component .component-ports{justify-content:space-between;display:flex}.component-port{background:var(--border-color);cursor:pointer;border-radius:50%;width:8px;height:8px;transition:all .3s}.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 (width<=1024px){.navbar{padding:0 var(--space-md)}.canvas-container{margin:var(--space-md)}.component-bar-container{padding:0 var(--space-md)}}@media (width<=768px){.navbar-nav{background:var(--background-secondary);border-top:1px solid var(--border-color);padding:var(--space-md);gap:var(--space-sm);flex-direction:column;display:none;position:absolute;top:100%;left:0;right:0}.navbar-nav.active,.mobile-menu-toggle{display:flex}.nav-btn{justify-content:center;width:100%}.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);-webkit-overflow-scrolling:touch;overflow:auto hidden}.component-group{align-items:flex-start;gap:var(--space-xs);flex-direction:column}.group-label{margin-right:0;margin-bottom:var(--space-xs)}.canvas-container{margin:var(--space-sm);min-height:300px}.simulation-controls{gap:var(--space-sm);flex-direction:column}.footer-content{text-align:center;gap:var(--space-md);flex-direction:column}.footer-right{text-align:center}.social-links{justify-content:center}}@media (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{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.loading{opacity:.6;pointer-events:none}.loading:after{content:"";border:2px solid var(--primary-color);border-top-color:#0000;border-radius:50%;width:20px;height:20px;margin:-10px 0 0 -10px;animation:1s linear infinite spin;position:absolute;top:50%;left:50%}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:.3s ease-out fadeIn}@media print{.navbar,.component-bar,.terminal-section,.footer{display:none}.canvas-container{box-shadow:none;border:none;margin:0}}.connection-mode-toggle label{color:#ccc;font-size:.9rem}.simulation-panel{background-color:#2d2d2d;border-top:1px solid #444;height:200px;padding:1rem;transition:transform .3s;position:absolute;bottom:0;left:250px;right:0}.simulation-panel.hidden{transform:translateY(100%)}.simulation-panel h3{color:#fff;margin-bottom:1rem}.simulation-controls{gap:1rem;margin-bottom:1rem;display:flex}#command-input{color:#fff;background-color:#3d3d3d;border:1px solid #555;border-radius:4px;flex:1;padding:.5rem}#command-input::placeholder{color:#999}#execute-command{color:#fff;cursor:pointer;background-color:#646cff;border:none;border-radius:4px;padding:.5rem 1rem}#execute-command:hover{background-color:#535bf2}#simulation-output{color:#ccc;background-color:#1a1a1a;border:1px solid #555;border-radius:4px;height:100px;padding:1rem;font-family:Courier New,monospace;font-size:.9rem;overflow-y:auto}.canvas-component{cursor:move;-webkit-user-select:none;user-select:none;background-color:#3d3d3d;border:2px solid #646cff;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;min-width:100px;min-height:60px;padding:1rem;display:flex;position:absolute;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{margin-bottom:.5rem;font-size:2rem}.canvas-component .component-label{color:#fff;text-align:center;font-size:.9rem}.connection-line{stroke:#646cff;stroke-width:3px;fill:none;pointer-events:stroke;cursor:pointer}.connection-line:hover,.connection-line.selected{stroke:gold;stroke-width:4px}.connection-point{fill:#646cff;stroke:#fff;stroke-width:2px;cursor:pointer}.connection-point:hover,.connection-point.active{fill:gold;r:8}.footer{background-color:#1a1a1a;border-top:1px solid #444;margin-top:auto;padding:1rem 2rem}.footer-content{justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;display:flex}.footer-left,.footer-right{flex-direction:column;gap:.25rem;display:flex}.footer-right{text-align:right}.footer p{color:#ccc;margin:0;font-size:.9rem}.footer a{color:#646cff;text-decoration:none;transition:color .3s}.footer a:hover{color:#535bf2;text-decoration:underline}.social-links{gap:1rem;margin-top:.5rem;display:flex}.social-link{border-radius:4px;align-items:center;gap:.5rem;padding:.25rem .5rem;font-size:.85rem;text-decoration:none;transition:all .3s;display:flex;color:#646cff!important}.social-link:hover{background-color:#646cff1a;text-decoration:none;transform:translateY(-1px);color:#535bf2!important}.social-link svg{transition:transform .3s}.social-link:hover svg{transform:scale(1.1)}.validation-panel{z-index:1000;background-color:#2d2d2d;border:1px solid #555;border-radius:8px;width:600px;max-height:70vh;padding:2rem;position:fixed;top:50%;left:50%;overflow-y:auto;transform:translate(-50%,-50%);box-shadow:0 10px 30px #00000080}.validation-panel.hidden{display:none}.validation-panel h3{color:#fff;border-bottom:1px solid #555;margin-bottom:1.5rem;padding-bottom:.5rem}#validation-results{max-height:400px;margin-bottom:1.5rem;overflow-y:auto}.validation-item{border-left:4px solid;border-radius:4px;margin:.5rem 0;padding:.75rem}.validation-item.success{color:#81c784;background-color:#4caf501a;border-left-color:#4caf50}.validation-item.warning{color:#ffb74d;background-color:#ffc1071a;border-left-color:#ffc107}.validation-item.error{color:#e57373;background-color:#f443361a;border-left-color:#f44336}.validation-item h4{margin:0 0 .5rem;font-size:1rem}.validation-item p{opacity:.9;margin:0;font-size:.9rem}.compilation-panel{z-index:1000;background-color:#2d2d2d;border:1px solid #555;border-radius:8px;width:800px;max-height:80vh;padding:2rem;position:fixed;top:50%;left:50%;overflow-y:auto;transform:translate(-50%,-50%);box-shadow:0 10px 30px #00000080}.compilation-panel.hidden{display:none}.compilation-panel h3{color:#fff;border-bottom:1px solid #555;margin-bottom:1.5rem;padding-bottom:.5rem}.compilation-options{align-items:center;gap:1rem;margin-bottom:1.5rem;display:flex}#compilation-target{color:#fff;background-color:#3d3d3d;border:1px solid #555;border-radius:4px;padding:.5rem;font-size:.9rem}#compilation-output{color:#ccc;white-space:pre-wrap;background-color:#1a1a1a;border:1px solid #555;border-radius:4px;min-height:300px;max-height:500px;margin-bottom:1.5rem;padding:1rem;font-family:Courier New,monospace;font-size:.85rem;overflow-y:auto}#close-validation,#close-compilation{color:#fff;cursor:pointer;float:right;background-color:#646cff;border:none;border-radius:4px;padding:.5rem 1.5rem}#close-validation:hover,#close-compilation:hover{background-color:#535bf2}#start-compilation{color:#fff;cursor:pointer;background-color:#4caf50;border:none;border-radius:4px;padding:.5rem 1rem}#start-compilation:hover{background-color:#45a049}@media (width<=768px){.footer-content{text-align:center;flex-direction:column;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{z-index:2000;background-color:#000c;justify-content:center;align-items:center;width:100vw;height:100vh;display:flex;position:fixed;top:0;left:0}.example-modal.hidden{display:none}.modal-content{background-color:#2d2d2d;border:1px solid #555;border-radius:8px;max-width:800px;max-height:80vh;padding:2rem;overflow-y:auto}.modal-content h3{color:#fff;text-align:center;border-bottom:1px solid #555;margin-bottom:1.5rem;padding-bottom:.5rem}.example-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1rem;margin-bottom:2rem;display:grid}.example-item{cursor:pointer;background-color:#3d3d3d;border:1px solid #555;border-radius:6px;padding:1.5rem;transition:all .3s}.example-item:hover{background-color:#4d4d4d;border-color:#646cff;transform:translateY(-2px)}.example-item h4{color:#fff;margin:0 0 .5rem;font-size:1.1rem}.example-item p{color:#ccc;margin:0;font-size:.9rem;line-height:1.4}#close-examples{color:#fff;cursor:pointer;background-color:#646cff;border:none;border-radius:4px;margin:0 auto;padding:.5rem 2rem;display:block}#close-examples:hover{background-color:#535bf2}.notification{color:#fff;z-index:10000;border-radius:6px;padding:1rem 1.5rem;font-weight:500;transition:transform .3s;position:fixed;top:20px;right:20px;transform:translate(400px);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}