:root{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.4;font-weight:400;--bg-color: #f0f0f0;--text-color: #333;--panel-bg: rgba(255, 255, 255, .9);--panel-border: #ccc;--selected-color: #007acc}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;padding:0;overflow:hidden;background-color:var(--bg-color);color:var(--text-color);font-size:13px;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent;-webkit-touch-callout:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;touch-action:none;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom);padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}#app{position:relative;width:100vw;height:100vh}#canvas-container{position:absolute;top:0;left:0;width:100%;height:100%;-webkit-user-select:none;user-select:none;touch-action:none}#canvas-container canvas{display:block;cursor:crosshair;-webkit-user-select:none;user-select:none;touch-action:none}#ui-overlay{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:10}#coordinates-panel{position:absolute;top:10px;right:10px;background:rgba(0,0,0,.6);border-radius:4px;padding:4px 8px;font-family:Courier New,monospace;font-size:14px;color:#fff;font-weight:700}#help-button{position:absolute;top:10px;right:110px;background:rgba(0,0,0,.6);border-radius:50%;width:30px;height:30px;display:flex;align-items:center;justify-content:center;font-family:Courier New,monospace;font-size:16px;color:#fff;font-weight:700;cursor:pointer;transition:all .15s ease;pointer-events:auto;-webkit-user-select:none;user-select:none}#help-button:hover{background:rgba(0,0,0,.8);transform:scale(1.05)}#help-button:active{transform:scale(.95)}#tutorial-modal{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.8);display:flex;align-items:center;justify-content:center;z-index:1000;pointer-events:auto}#tutorial-modal.hidden{display:none}.tutorial-content{background:white;border-radius:8px;padding:24px;max-width:600px;max-height:80vh;overflow-y:auto;position:relative;box-shadow:0 4px 20px #0000004d;animation:modalFadeIn .3s ease-out}@keyframes modalFadeIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.tutorial-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:8px;border-bottom:2px solid #eee}.tutorial-header h2{margin:0;color:#333;font-size:24px}.tutorial-close{background:none;border:none;font-size:24px;cursor:pointer;color:#666;padding:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .15s ease}.tutorial-close:hover{background:#f0f0f0;color:#333}.tutorial-section{margin-bottom:20px}.tutorial-section h3{color:#333;margin-bottom:8px;font-size:18px}.tutorial-section p{color:#666;line-height:1.6;margin-bottom:12px}.tutorial-section ul{color:#666;line-height:1.6;margin-left:20px}.tutorial-section li{margin-bottom:8px}.pricing-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:12px 0}.pricing-item{background:#f8f9fa;padding:12px;border-radius:6px;border-left:4px solid #007acc}.pricing-item.expensive{border-left-color:#f44}.pricing-item.moderate{border-left-color:#f80}.pricing-item.cheap{border-left-color:#fa0}.pricing-item.cheapest{border-left-color:#888}.pricing-item strong{color:#333}.tutorial-footer{margin-top:24px;padding-top:16px;border-top:1px solid #eee;display:flex;justify-content:space-between;align-items:center}.tutorial-footer label{display:flex;align-items:center;gap:8px;color:#666;font-size:14px;cursor:pointer}.tutorial-footer input[type=checkbox]{margin:0}.tutorial-footer button{background:#007acc;color:#fff;border:none;padding:10px 20px;border-radius:6px;cursor:pointer;font-size:14px;transition:all .15s ease}.tutorial-footer button:hover{background:#005ea3}.tutorial-footer button:active{transform:scale(.98)}#nostr-status-panel{position:absolute;top:50px;right:10px;background:rgba(0,0,0,.6);border-radius:4px;padding:4px 8px;font-family:Courier New,monospace;font-size:12px;color:#fff;max-width:250px;pointer-events:auto}#connection-status{margin-bottom:2px}#user-info{font-size:10px;color:#ccc;word-break:break-all}#user-info.hidden{display:none}.hidden{display:none!important}#scale{color:#666}#color-palette-container{position:absolute;top:10px;left:10px;width:80px;max-height:calc(100vh - 20px);display:flex;flex-direction:column;z-index:20;pointer-events:auto;overflow:visible;transition:max-height .2s ease}body.preview-active #color-palette-container{max-height:calc(100vh - 200px)}body.preview-active.preview-minimized #color-palette-container{max-height:calc(100vh - 100px)}#color-palette-scroll-container{overflow-y:auto;overflow-x:hidden;flex:1;min-height:0;scrollbar-width:thin;scrollbar-color:rgba(0,0,0,.3) transparent}#color-palette-scroll-container::-webkit-scrollbar{width:6px}#color-palette-scroll-container::-webkit-scrollbar-track{background:transparent}#color-palette-scroll-container::-webkit-scrollbar-thumb{background:rgba(0,0,0,.3);border-radius:3px}#color-palette-scroll-container::-webkit-scrollbar-thumb:hover{background:rgba(0,0,0,.5)}#color-palette{display:flex;flex-direction:column;gap:4px;align-items:stretch}.color-row{display:flex;gap:4px}.color-btn{width:28px;height:28px;min-width:28px;max-width:28px;border:2px solid #999;border-radius:50%;cursor:pointer;position:relative;flex:0 0 28px}.color-btn:hover{border-width:3px;border-color:#666;z-index:1}.color-btn.selected{border-color:#000;border-width:4px;z-index:2}.color-btn[style*="rgb(255, 255, 255)"],.color-btn[style*="#FFFFFF"],.color-btn[style*="#ffffff"],.color-btn[style*="#E4E4E4"]{border-color:#666}.color-btn[style*="rgb(255, 255, 255)"].selected,.color-btn[style*="#FFFFFF"].selected,.color-btn[style*="#ffffff"].selected,.color-btn[style*="#E4E4E4"].selected{border-color:#333;border-width:4px}.color-btn[style*="rgb(255, 255, 255)"]:hover,.color-btn[style*="#FFFFFF"]:hover,.color-btn[style*="#ffffff"]:hover,.color-btn[style*="#E4E4E4"]:hover{border-color:#333;border-width:3px}#zoom-controls{position:absolute;top:10px;left:100px;display:flex;flex-direction:column;gap:5px;pointer-events:auto}.zoom-btn{width:40px;height:40px;background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;color:#333;transition:all .15s ease;-webkit-user-select:none;user-select:none}.zoom-btn:hover{background:rgba(255,255,255,1);transform:scale(1.05)}.zoom-btn:active{transform:scale(.95)}.action-btn{width:40px;height:40px;background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;color:#333;transition:all .15s ease;-webkit-user-select:none;user-select:none}.action-btn:hover{background:rgba(255,255,255,1);transform:scale(1.05)}.action-btn:active{transform:scale(.95)}.action-btn:disabled{opacity:.5;cursor:not-allowed}.action-btn:disabled:hover{transform:none;cursor:not-allowed}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#f1f1f1}::-webkit-scrollbar-thumb{background:#888;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#555}#ui-overlay,#color-palette-container,#zoom-controls{user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none}@media (-webkit-min-device-pixel-ratio: 2),(min-resolution: 192dpi){body{font-size:14px}.color-btn{border-width:1px}.color-btn:hover{border-width:2px}.color-btn.selected{border-width:3px}}@supports (-webkit-appearance: none){body,#app{height:100vh;height:-webkit-fill-available}#canvas-container{overscroll-behavior:none}}.footer{position:fixed;bottom:0;right:0;padding:1rem;text-align:right;font-size:.875rem;color:var(--text-secondary)}.preview-panel{position:fixed;bottom:10px;right:10px;background:var(--panel-bg);border:2px solid var(--panel-border);border-radius:8px;padding:12px;max-width:400px;width:400px;box-shadow:0 4px 12px #00000026;pointer-events:auto;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:150}.preview-panel.hidden{display:none}.preview-header{display:flex;justify-content:space-between;align-items:center}.preview-header h3{margin:0;font-size:16px;color:var(--text-color)}.preview-header-controls{display:flex;gap:8px;align-items:center}.minimize-btn{background:#6b7280;color:#fff;padding-left:30px!important;padding-right:30px!important}.minimize-btn:hover{background:#4b5563}.preview-options{margin:12px 0;padding:8px 0;border-bottom:1px solid rgba(0,0,0,.1)}.toggle-container{display:flex;align-items:center;cursor:pointer;-webkit-user-select:none;user-select:none}.toggle-container input[type=checkbox]{display:none}.toggle-slider{position:relative;width:40px;height:20px;background-color:#ddd;border-radius:20px;transition:background-color .3s;margin-right:8px}.toggle-slider:before{content:"";position:absolute;width:16px;height:16px;border-radius:50%;background-color:#fff;top:2px;left:2px;transition:transform .3s}.toggle-container input[type=checkbox]:checked+.toggle-slider{background-color:#007bff}.toggle-container input[type=checkbox]:checked+.toggle-slider:before{transform:translate(20px)}.toggle-label{font-size:12px;color:var(--text-color)}.cost-breakdown{margin-bottom:12px;padding:8px;background:rgba(0,0,0,.05);border-radius:4px}#cost-summary{font-weight:700;font-size:14px;margin-bottom:4px;color:var(--text-color)}.cost-details{font-size:11px;line-height:1.3}.preview-actions{display:flex;gap:8px;justify-content:flex-end}.preview-btn{padding:8px 16px;border:none;border-radius:4px;font-size:13px;font-weight:700;cursor:pointer;transition:all .15s ease;white-space:nowrap;margin-left:20px}.preview-btn:hover{transform:translateY(-1px);box-shadow:0 2px 8px #0003}.preview-btn:active{transform:translateY(0)}.preview-btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}.submit-btn{background:#22c55e;color:#fff}.submit-btn:hover:not(:disabled){background:#16a34a}.cancel-btn{background:#ef4444;color:#fff}.cancel-btn:hover{background:#dc2626}.preview-inputs{margin:12px 0;padding:8px 0;border-bottom:1px solid rgba(0,0,0,.1)}.input-group{margin-bottom:16px}.input-group:last-child{margin-bottom:0}.input-group label{display:block;margin-bottom:4px;font-size:14px;font-weight:500;color:var(--text-color)}.input-group input,.input-group textarea{width:100%;padding:8px 12px;border:1px solid #ddd;border-radius:4px;font-size:14px;font-family:inherit;background:white;box-sizing:border-box;transition:border-color .2s,box-shadow .2s}.input-group input:focus,.input-group textarea:focus{outline:none;border-color:#007bff;box-shadow:0 0 0 2px #007bff40}.input-group textarea{resize:vertical;min-height:40px;max-height:80px}.input-help{display:block;margin-top:4px;font-size:12px;color:#6b7280;line-height:1.3}.input-group input.invalid,.input-group textarea.invalid{border-color:#dc2626;box-shadow:0 0 0 2px #dc262633}.input-group input.invalid:focus,.input-group textarea.invalid:focus{border-color:#dc2626;box-shadow:0 0 0 2px #dc262666}.input-help.error{color:#dc2626;font-weight:500}.pixel-age-fresh{box-shadow:0 0 0 2px #ef4444}.pixel-age-recent{box-shadow:0 0 0 2px #f59e0b}.pixel-age-older{box-shadow:0 0 0 2px #22c55e}.pixel-age-ancient{box-shadow:0 0 0 2px #3b82f6}.preview-pixel{opacity:.8;animation:previewPulse 2s ease-in-out infinite}@keyframes previewPulse{0%,to{opacity:.8}50%{opacity:1}}@media (max-width: 768px){.tutorial-content{margin:20px;max-width:calc(100vw - 40px);max-height:calc(100vh - 40px);padding:20px}.tutorial-header h2{font-size:20px}.tutorial-section h3{font-size:16px}.pricing-grid{grid-template-columns:1fr;gap:8px}.tutorial-footer{flex-direction:column;gap:16px;align-items:stretch}.tutorial-footer button{width:100%;padding:12px}.preview-panel{bottom:20px;left:10px;right:10px;transform:none;max-width:none;width:calc(100vw - 20px);padding:16px;border-radius:12px;box-shadow:0 8px 24px #00000040;max-height:30vh;overflow:scroll}.preview-header h3{font-size:18px}.preview-actions{flex-direction:column;gap:12px}.preview-btn{padding:12px 16px;font-size:14px;border-radius:8px}.cost-breakdown{margin-bottom:16px;padding:12px;border-radius:8px}#cost-summary{font-size:16px;margin-bottom:8px}.cost-details{font-size:13px;line-height:1.4}.toggle-container{padding:4px 0}.toggle-label{font-size:14px}.preview-inputs{margin:8px 0;padding:6px 0}.input-group{margin-bottom:12px}.input-group label{font-size:13px}.input-group input,.input-group textarea{font-size:13px;padding:6px 10px}.input-help{font-size:11px}#color-palette-container{top:10px;left:10px;width:84px;max-height:95dvh;overflow:visible}body.preview-active #color-palette-container{max-height:60dvh}body.preview-active.preview-minimized #color-palette-container{max-height:85dvh}#color-palette-scroll-container{-webkit-overflow-scrolling:touch;scrollbar-width:thin}#color-palette-scroll-container::-webkit-scrollbar{width:4px}.color-btn{width:32px;height:32px;min-width:32px;max-width:32px;border-width:3px;flex:0 0 32px}.color-btn:hover{border-width:4px}.color-btn.selected{border-width:5px}#zoom-controls{top:10px;left:105px}}.pixel-tooltip{position:fixed;background:rgba(0,0,0,.9);color:#fff;padding:8px;border-radius:6px;font-size:12px;max-width:200px;z-index:1000;pointer-events:none;word-wrap:break-word;box-shadow:0 2px 8px #0000004d;transition:opacity .15s ease}.pixel-tooltip.hidden{opacity:0;pointer-events:none}.tooltip-content{display:flex;align-items:center;gap:8px}.tooltip-profile-pic{width:24px;height:24px;border-radius:50%;object-fit:cover;background:#f0f0f0;border:1px solid rgba(255,255,255,.3);flex-shrink:0}.tooltip-text{flex:1;min-width:0}.tooltip-message{line-height:1.3;word-wrap:break-word;overflow-wrap:break-word;white-space:normal;margin-bottom:2px}.tooltip-timestamp{font-size:10px;color:#ffffffb3;line-height:1.2}.pixel-modal{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.8);display:flex;align-items:center;justify-content:center;z-index:1000;pointer-events:auto}.pixel-modal.hidden{display:none}.pixel-modal-content{background:white;border-radius:8px;padding:0;max-width:500px;width:90%;max-height:80vh;overflow-y:auto;position:relative;box-shadow:0 4px 20px #0000004d;animation:modalFadeIn .3s ease-out}.pixel-modal-close{background:none;border:none;font-size:24px;cursor:pointer;color:#666;padding:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .15s ease}.pixel-modal-close:hover{background:#f0f0f0;color:#333}.pixel-modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px 16px;border-bottom:1px solid #eee}.pixel-modal-header h3{margin:0;color:#333;font-size:20px}.pixel-modal-body{padding:0 24px 24px}.pixel-modal-profile-header{display:flex;justify-content:space-between;align-items:flex-start;padding:20px 24px 16px;border-bottom:1px solid #eee}.profile-header{display:flex;align-items:flex-start;gap:12px}.profile-pic{width:48px;height:48px;border-radius:50%;object-fit:cover;background:#f0f0f0;border:2px solid #ddd;transition:all .15s ease;cursor:pointer}.profile-pic:hover{border-color:#007acc;transform:scale(1.05)}.profile-info{flex:1;min-width:0}.profile-name{font-weight:600;font-size:16px;color:#333;margin-bottom:4px}.profile-about{font-size:14px;color:#666;line-height:1.4;margin-bottom:8px;word-wrap:break-word}.profile-link{font-size:12px;color:#007acc;text-decoration:none;font-weight:500}.profile-link:hover{text-decoration:underline}.pixel-modal-message{margin-top:12px;margin-bottom:12px;line-height:1.4;color:#333}.header-actions{display:flex;align-items:center;gap:12px}.pixel-modal-timestamp-header{font-size:12px;color:#0009;white-space:nowrap}.share-modal{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.8);display:flex;align-items:center;justify-content:center;z-index:1000;pointer-events:auto}.share-modal.hidden{display:none}.share-modal-content{background:white;border-radius:12px;padding:0;max-width:500px;width:90%;max-height:90vh;overflow-y:auto;position:relative;box-shadow:0 4px 20px #0000004d;animation:modalFadeIn .3s ease-out}.share-modal-header{display:flex;justify-content:space-between;align-items:center;padding:24px 24px 16px;border-bottom:1px solid #eee}.share-modal-header h2{margin:0;color:#333;font-size:24px}.share-modal-close{background:none;border:none;font-size:24px;cursor:pointer;color:#666;padding:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .15s ease}.share-modal-close:hover{background:#f0f0f0;color:#333}.share-modal-body{padding:24px}.share-modal-body p{margin:0 0 20px;color:#666;line-height:1.5}.share-preview{display:flex;justify-content:center;margin-bottom:24px;padding:16px;background:#f8f9fa;border-radius:8px;border:2px dashed #ddd}.share-screenshot{max-width:200px;max-height:200px;border:1px solid #ddd;border-radius:4px;image-rendering:pixelated;image-rendering:-moz-crisp-edges;image-rendering:crisp-edges}.share-inputs{margin-bottom:24px}.share-link-preview{margin-top:16px}.link-container{display:flex;gap:8px;margin-top:4px}.link-container input{flex:1;padding:8px 12px;border:1px solid #ddd;border-radius:6px;font-size:14px;font-family:Courier New,monospace;background:#f8f9fa;color:#666}.copy-btn{padding:8px 12px;background:#007acc;color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:14px;transition:all .15s ease;white-space:nowrap}.copy-btn:hover{background:#005a99;transform:scale(1.05)}.copy-btn:active{transform:scale(.95)}.copy-btn.copied{background:#28a745}.share-actions{display:flex;gap:12px}.share-actions .preview-btn{margin-left:0;flex:1}.pixel-modal-url{font-size:14px}.pixel-modal-url a{color:#007acc;text-decoration:none}.pixel-modal-url a:hover{text-decoration:underline}.upload-modal{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.8);display:flex;align-items:center;justify-content:center;z-index:1000;pointer-events:auto}.upload-modal.hidden{display:none}.upload-modal-content{background:white;border-radius:12px;padding:0;max-width:600px;width:90%;max-height:90vh;overflow-y:auto;position:relative;box-shadow:0 4px 20px #0000004d;animation:modalFadeIn .3s ease-out}.upload-modal-header{display:flex;justify-content:space-between;align-items:center;padding:24px 24px 16px;border-bottom:1px solid #eee}.upload-modal-header h2{margin:0;color:#333;font-size:24px}.upload-modal-close{background:none;border:none;font-size:24px;cursor:pointer;color:#666;padding:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .15s ease}.upload-modal-close:hover{background:#f0f0f0;color:#333}.upload-modal-body{padding:24px}.upload-area{border:2px dashed #ddd;border-radius:8px;padding:40px 20px;text-align:center;background:#f8f9fa;cursor:pointer;transition:all .15s ease}.upload-area:hover{border-color:#007acc;background:#f0f8ff}.upload-area.dragover{border-color:#007acc;background:#e6f3ff;transform:scale(1.02)}.upload-instructions{color:#666}.upload-icon{font-size:48px;margin-bottom:16px}.upload-instructions p{margin:0 0 8px;font-size:18px;font-weight:500}.upload-instructions small{font-size:14px;color:#999}.upload-preview{display:flex;flex-direction:column;gap:24px}.preview-image-container{display:flex;justify-content:center;padding:16px;background:#f8f9fa;border-radius:8px;border:1px solid #ddd}.preview-image-container img{max-width:300px;max-height:300px;border-radius:4px;image-rendering:auto}.upload-settings{display:flex;flex-direction:column;gap:16px}.setting-group{display:flex;flex-direction:column;gap:8px}.setting-group label{font-weight:500;color:#333;font-size:14px}.setting-group input[type=range]{width:100%}.setting-group input[type=number]{padding:8px 12px;border:1px solid #ddd;border-radius:6px;font-size:14px;width:120px}.setting-group input[type=number]:focus{outline:none;border-color:#007acc;box-shadow:0 0 0 2px #007acc33}#size-value{font-weight:700;color:#007acc;font-size:14px}.checkbox-label{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:14px}.checkbox-label input[type=checkbox]{margin:0}.upload-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:24px;padding-top:24px;border-top:1px solid #eee}.upload-actions .preview-btn{margin-left:0;min-width:120px}@media (max-width: 768px){.upload-modal-content{width:95%;margin:20px}.upload-modal-header,.upload-modal-body{padding:16px}.upload-area{padding:30px 15px}.upload-icon{font-size:36px}.upload-instructions p{font-size:16px}.preview-image-container img{max-width:250px;max-height:250px}.upload-actions{flex-direction:column}.upload-actions .preview-btn{width:100%}}