:root{--bg-color: #0f1115;--panel-bg: #1a1d24;--text-primary: #f0f0f0;--text-secondary: #a0a5b1;--accent-color: #3b82f6;--accent-hover: #2563eb;--border-color: #2d3340;--shadow-sm: 0 1px 2px rgba(0,0,0,.3);--shadow-md: 0 4px 6px rgba(0,0,0,.4);--radius-md: 8px;--radius-lg: 12px}*{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);line-height:1.5;-webkit-font-smoothing:antialiased;min-height:100vh}button{cursor:pointer;font-family:inherit}input,select,textarea{font-family:inherit}.app-container{display:flex;flex-direction:column;min-height:100vh}header{padding:1rem 2rem;background-color:var(--panel-bg);border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between}.header-title,.header-actions{display:flex;align-items:center;gap:1rem}header h1{font-size:1.5rem;font-weight:600;background:linear-gradient(to right,#60a5fa,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.main-content{display:flex;flex:1;min-height:calc(100vh - 75px);overflow:hidden}.canvas-container{flex:1;display:flex;align-items:center;justify-content:center;padding:2rem;background-color:var(--bg-color);overflow:auto;position:relative}.canvas-wrapper{position:relative;box-shadow:var(--shadow-md);border-radius:var(--radius-md);overflow:hidden;background-color:#1a1d24;background-image:linear-gradient(45deg,#2a2d35 25%,transparent 25%),linear-gradient(-45deg,#2a2d35 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#2a2d35 75%),linear-gradient(-45deg,transparent 75%,#2a2d35 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0px}canvas{display:block;max-width:100%;max-height:100%;cursor:crosshair}.zoom-controls{position:absolute;bottom:2rem;right:2rem;display:flex;flex-direction:column;gap:.5rem;z-index:10;background:#1a1d24cc;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);padding:.5rem;border-radius:var(--radius-lg);border:1px solid rgba(255,255,255,.1);box-shadow:var(--shadow-md)}.zoom-btn{display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:transparent;border:none;color:var(--text-primary);border-radius:var(--radius-md);transition:all .2s}.zoom-btn:hover{background:#ffffff1a;color:var(--accent-color)}.controls-wrapper{position:relative;transition:margin-right .3s ease;height:100%;display:flex;margin-right:0}.controls-wrapper.closed{margin-right:-320px}.controls-panel{width:320px;height:100%;background-color:var(--panel-bg);border-left:1px solid var(--border-color);padding:1.5rem;overflow-y:auto;display:flex;flex-direction:column;gap:1.5rem}.panel-toggle-btn{position:absolute;top:1rem;left:-3rem;z-index:10;background-color:var(--panel-bg);border:1px solid var(--border-color);border-radius:var(--radius-full);width:40px;height:40px;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:var(--shadow-md);color:var(--text-primary);transition:all .2s}.panel-toggle-btn:hover{background-color:var(--bg-color)}.control-group{display:flex;flex-direction:column;gap:.5rem}.control-group label{font-size:.875rem;font-weight:500;color:var(--text-secondary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1rem;background-color:var(--accent-color);color:#fff;border:none;border-radius:var(--radius-md);font-weight:500;font-size:.95rem;transition:all .2s ease}.btn:hover:not(:disabled){background-color:var(--accent-hover)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background-color:#374151}.btn-secondary:hover:not(:disabled){background-color:#4b5563}.btn-outline{background-color:transparent;border:1px solid var(--border-color);color:var(--text-primary)}.btn-outline:hover:not(:disabled){background-color:#ffffff0d}.file-upload-wrapper{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;border:2px dashed var(--border-color);border-radius:var(--radius-md);padding:2rem 1rem;text-align:center;cursor:pointer;transition:border-color .2s ease}.file-upload-wrapper:hover{border-color:var(--accent-color)}.file-upload-wrapper input[type=file]{position:absolute;top:0;left:0;width:100%;height:100%;opacity:0;cursor:pointer}.slider-container{display:flex;align-items:center;gap:1rem}input[type=range]{flex:1;accent-color:var(--accent-color)}.shape-selector{display:flex;gap:.5rem}.shape-btn{flex:1;padding:.5rem;background-color:transparent;border:1px solid var(--border-color);color:var(--text-secondary);border-radius:var(--radius-md);display:flex;flex-direction:column;align-items:center;gap:.25rem;transition:all .2s ease}.shape-btn:hover{background-color:#ffffff0d}.shape-btn.active{background-color:#3b82f61a;border-color:var(--accent-color);color:var(--accent-color)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-secondary);gap:1rem}.empty-state h2{color:var(--text-primary);margin-bottom:.5rem}.guide-steps{display:flex;flex-direction:column;gap:1.25rem;margin-top:1.5rem;max-width:500px;background:#ffffff08;padding:2rem;border-radius:var(--radius-lg);border:1px solid var(--border-color)}.guide-step{display:flex;gap:1rem;align-items:flex-start}.step-number{background-color:var(--accent-color);color:#fff;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem;flex-shrink:0}.step-content h4{color:var(--text-primary);margin-bottom:.25rem;font-size:1rem}.step-content p{font-size:.9rem;color:var(--text-secondary)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000}.modal-content{background-color:var(--panel-bg);padding:2rem;border-radius:var(--radius-lg);border:1px solid var(--border-color);width:400px;max-width:90vw;box-shadow:var(--shadow-md);display:flex;flex-direction:column;gap:1.5rem}.modal-content h2{font-size:1.25rem;margin-bottom:.5rem}.modal-actions{display:flex;justify-content:flex-end;gap:1rem;margin-top:1rem}.input-group{display:flex;flex-direction:column;gap:.5rem}.input-group input[type=number],.input-group select{padding:.75rem;border-radius:var(--radius-md);border:1px solid var(--border-color);background-color:var(--bg-color);color:var(--text-primary);outline:none}.input-group input[type=number]:focus,.input-group select:focus{border-color:var(--accent-color)}.app-footer{background-color:var(--panel-bg);border-top:1px solid var(--border-color);padding:.75rem 2rem;display:flex;flex-direction:column;gap:1rem;font-size:.85rem;color:var(--text-secondary)}.footer-header{display:flex;justify-content:space-between;align-items:center;cursor:pointer;-webkit-user-select:none;user-select:none}.footer-toggle{background:none;border:none;color:var(--text-secondary);display:flex;align-items:center;justify-content:center}.footer-links-detailed{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.25rem;padding-bottom:.5rem;width:100%}.footer-link-item{display:flex;flex-direction:column;gap:.25rem;color:var(--text-primary);text-decoration:none;padding:.75rem;border-radius:var(--radius-md);border:1px solid transparent;transition:all .2s}.footer-link-item strong{color:var(--accent-color);font-size:.95rem}.footer-link-item span{font-size:.8rem;color:var(--text-secondary)}.footer-link-item:hover{background-color:#ffffff0d;border-color:var(--border-color)}.footer-bottom{display:flex;justify-content:space-between;align-items:center;width:100%;padding-top:1rem;border-top:1px solid rgba(255,255,255,.05);margin-top:.5rem;font-size:.8rem}.link-button{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:0;text-decoration:underline;transition:color .2s}.link-button:hover{color:var(--text-primary)}.feedback-section{background-color:var(--panel-bg);padding:3rem 2rem;border-top:1px solid var(--border-color);display:flex;justify-content:center}.feedback-container{width:100%;max-width:600px;background:var(--bg-color);padding:2rem;border-radius:var(--radius-lg);border:1px solid var(--border-color);box-shadow:var(--shadow-sm)}.feedback-header{text-align:center;margin-bottom:1.5rem}.feedback-header h2{font-size:1.5rem;margin-bottom:.5rem;color:var(--text-primary)}.feedback-header p{color:var(--text-secondary);font-size:.95rem}.feedback-form{display:flex;flex-direction:column;gap:1rem}.feedback-form textarea,.feedback-form input{padding:.75rem;border-radius:var(--radius-md);border:1px solid var(--border-color);background-color:var(--panel-bg);color:var(--text-primary);outline:none;font-family:inherit;width:100%}.feedback-form textarea{resize:vertical;min-height:80px}.feedback-form textarea:focus,.feedback-form input:focus{border-color:var(--accent-color)}.feedback-submit{width:100%;margin-top:.5rem;justify-content:center}.feedback-error{display:flex;align-items:center;gap:.5rem;color:#ef4444;background:#ef44441a;padding:.75rem;border-radius:var(--radius-md);font-size:.9rem;margin-top:.5rem}.animate-spin{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.app-share-floating{position:fixed;left:1.5rem;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:.75rem;background:#1a1d2499;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);padding:.75rem;border-radius:100px;border:1px solid rgba(255,255,255,.1);box-shadow:0 8px 32px #0000004d;z-index:50;transition:all .3s ease}.share-btn{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:#ffffff0d;color:var(--text-secondary);text-decoration:none;border:1px solid rgba(255,255,255,.05);transition:all .2s cubic-bezier(.175,.885,.32,1.275);cursor:pointer}.share-btn svg{width:20px;height:20px}.share-btn:hover{transform:scale(1.15) translateY(-2px);color:#fff}.share-x:hover{background:#000;border-color:#333}.share-fb:hover{background:#1877f2;border-color:#1877f2}.share-in:hover{background:#0a66c2;border-color:#0a66c2}.share-wa:hover{background:#25d366;border-color:#25d366}.share-rd:hover{background:#ff4500;border-color:#ff4500}.share-native:hover{background:var(--accent-color);border-color:var(--accent-color)}@media(max-width:768px){.app-share-floating{top:auto;bottom:1.5rem;left:50%;transform:translate(-50%);flex-direction:row;padding:.5rem;gap:.5rem}.share-btn:hover{transform:scale(1.15) translateY(-4px)}}.seo-content{background-color:var(--bg-color);padding:4rem 2rem;border-top:1px solid var(--border-color)}.seo-content-inner{max-width:1000px;margin:0 auto}.seo-content h2{font-size:2rem;margin-bottom:1rem;background:linear-gradient(to right,#60a5fa,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.seo-content h3{font-size:1.25rem;margin-bottom:.75rem;color:var(--text-primary)}.seo-content p{color:var(--text-secondary);margin-bottom:1.5rem;line-height:1.6}.seo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin:2.5rem 0}.seo-card{background-color:var(--panel-bg);padding:1.5rem;border-radius:var(--radius-lg);border:1px solid var(--border-color)}.seo-card h3{margin-bottom:.5rem}.seo-card p{margin-bottom:0;font-size:.95rem}