*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-deep: #111;--bg-panel: #1c1c1c;--bg-section: #242424;--border: #333;--text: #e0e0e0;--text-dim: #888;--accent: #4a9eff;--accent-dim: #2a6abf;--radius: 6px}html,body{height:100%;overflow:hidden}body{font-family:system-ui,-apple-system,sans-serif;font-size:13px;background:var(--bg-deep);color:var(--text);-webkit-font-smoothing:antialiased}.app-layout{position:fixed;inset:0;display:flex;flex-direction:column;overflow:hidden}.left-panel{width:100%;flex-shrink:0;background:var(--bg-panel);border-bottom:1px solid var(--border)}.panel{width:100%;padding:10px 16px;overflow-x:auto;overflow-y:hidden;display:flex;flex-direction:row;gap:12px;align-items:center}.panel-title{font-size:14px;font-weight:600;letter-spacing:.02em;color:var(--text);padding:0 12px 0 0;border-right:1px solid var(--border);margin-right:4px;align-self:center;flex-shrink:0;white-space:nowrap}.control-section{background:var(--bg-section);border-radius:var(--radius);padding:10px;display:flex;flex-direction:column;gap:8px;flex-shrink:0;align-self:center}.section-label{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--text-dim);display:flex;justify-content:space-between;align-items:center}.control-row{display:flex;align-items:center;gap:8px}.control-row input[type=range]{flex:1;min-width:120px;accent-color:var(--accent);cursor:pointer;height:4px}.control-row input[type=range]:disabled{opacity:.35;cursor:not-allowed}.value-badge{font-size:11px;font-variant-numeric:tabular-nums;color:var(--accent);min-width:38px;text-align:right;flex-shrink:0}.inline-label{font-size:11px;color:var(--text-dim);width:14px;flex-shrink:0}.number-input{flex:1;background:#111;border:1px solid var(--border);border-radius:4px;color:var(--text);font-size:12px;padding:4px 6px;outline:none;font-variant-numeric:tabular-nums;min-width:0}.number-input:focus{border-color:var(--accent)}.unit{font-size:10px;color:var(--text-dim);flex-shrink:0}.toggle{display:flex;align-items:center;gap:5px;cursor:pointer}.toggle input[type=checkbox]{accent-color:var(--accent);width:13px;height:13px;cursor:pointer}.toggle-label{font-size:10px;color:var(--text-dim);font-variant-numeric:tabular-nums}.file-upload-label{display:flex;align-items:center;justify-content:center;padding:10px 16px;background:var(--accent-dim);border:1px dashed var(--accent);border-radius:var(--radius);cursor:pointer;font-size:12px;color:var(--text);white-space:nowrap;transition:background .15s}.file-upload-label:hover{background:var(--accent)}.btn-secondary{padding:7px 14px;background:transparent;border:1px solid var(--border);border-radius:var(--radius);color:var(--text-dim);font-size:12px;cursor:pointer;transition:border-color .15s,color .15s}.btn-secondary:hover{border-color:#666;color:var(--text)}.canvas-panel{flex:1;display:flex;flex-direction:row;background:var(--bg-deep);overflow:hidden}.toolbar{display:flex;flex-direction:column;align-items:center;gap:4px;padding:8px 6px;background:var(--bg-panel);border-right:1px solid var(--border);flex-shrink:0}.toolbar-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:transparent;border:1px solid transparent;border-radius:var(--radius);color:var(--text-dim);cursor:pointer;transition:background .15s,color .15s,border-color .15s}.toolbar-btn:hover{background:var(--bg-section);color:var(--text)}.toolbar-btn--active{background:var(--bg-section);border-color:var(--accent);color:var(--accent)}.toolbar-spacer{flex:1}.toolbar-settings-wrap{position:relative}.toolbar-popover{position:absolute;left:calc(100% + 8px);bottom:0;background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);padding:12px;display:flex;flex-direction:column;gap:8px;width:200px;box-shadow:0 4px 20px #00000080;z-index:50}.canvas-area{position:relative;flex:1;overflow:hidden}.checkout-btn{position:absolute;bottom:20px;right:20px;padding:12px 24px;background:var(--accent);border:none;border-radius:var(--radius);color:#fff;font-size:14px;font-weight:600;cursor:pointer;box-shadow:0 4px 16px #0006;transition:background .15s,transform .1s}.checkout-btn:hover{background:#5ab0ff}.checkout-btn:active{transform:scale(.97)}.checkout-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.checkout-error{position:absolute;bottom:64px;right:20px;margin:0;padding:6px 10px;background:#dc3c3cd9;border-radius:var(--radius);color:#fff;font-size:12px;max-width:200px;text-align:right}.canvas-panel canvas{user-select:none}.canvas-panel canvas:active{cursor:grabbing!important}.styles-panel-header{padding:0 8px 0 0;border-right:1px solid var(--border);margin-right:4px;align-self:center;flex-shrink:0}.btn-back{background:transparent;border:none;color:var(--accent);font-size:12px;cursor:pointer;padding:4px 0;letter-spacing:.02em}.btn-back:hover{color:#fff}.history-list{flex-direction:row!important;flex-wrap:nowrap;overflow-x:auto;overflow-y:hidden;gap:4px!important;align-items:center!important;background:transparent!important;padding:0!important}.history-list .section-label{display:none}.history-entry{display:flex;flex-direction:column;align-items:center;gap:4px;width:auto;flex-shrink:0;background:transparent;border:1px solid transparent;border-radius:var(--radius);padding:8px 6px;cursor:pointer;color:var(--text-dim);font-size:10px;text-align:center;transition:background .15s,border-color .15s}.history-entry:hover{background:#2a2a2a;border-color:var(--border);color:var(--text)}.history-thumb{width:64px;height:52px;object-fit:cover;border-radius:3px;flex-shrink:0}.history-date{white-space:nowrap;font-size:10px}.variant-row{flex-direction:row!important;flex-wrap:nowrap;overflow-x:auto;overflow-y:hidden;gap:6px!important;align-items:center!important;background:transparent!important;padding:0!important}.variant-thumb{flex-shrink:0;display:flex;flex-direction:column;align-items:center;gap:6px;background:var(--bg-section);border:2px solid transparent;border-radius:var(--radius);padding:8px;cursor:pointer;transition:border-color .15s,background .15s;color:var(--text-dim);font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.06em}.variant-thumb span{cursor:pointer}.variant-thumb-img-wrap{position:relative;width:80px;height:64px;flex-shrink:0;cursor:pointer}.variant-thumb img{width:80px;height:64px;object-fit:cover;border-radius:3px;display:block;flex-shrink:0}.variant-download-btn{position:absolute;bottom:4px;right:4px;width:20px;height:20px;border-radius:3px;border:none;background:#000000a6;color:#fff;font-size:11px;line-height:1;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;transition:opacity .15s;padding:0}.variant-thumb:hover .variant-download-btn{opacity:1}.variant-thumb:hover{border-color:var(--accent-dim);color:var(--text)}.variant-thumb--active{border-color:var(--accent);color:var(--accent)}.variant-thumb--skeleton{cursor:default;pointer-events:none}.variant-skeleton-img{width:80px;height:64px;border-radius:3px;background:linear-gradient(90deg,var(--bg-deep) 25%,#2a2a2a 50%,var(--bg-deep) 75%);background-size:200% 100%;animation:shimmer 1.4s infinite}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.text-editor-overlay{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:100;display:flex;flex-direction:column;gap:4px;pointer-events:all;width:420px;max-width:90vw}.text-editor-input{background:#141414eb;border:1.5px solid var(--accent);border-radius:var(--radius);color:var(--text);font-size:16px;font-family:system-ui,sans-serif;padding:8px 10px;resize:both;outline:none;width:100%;box-shadow:0 4px 20px #00000080;line-height:1.5}.text-editor-font-select{background:var(--bg-section);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font-size:12px;padding:4px 6px;cursor:pointer;outline:none;width:100%}.text-editor-font-select:focus{border-color:var(--accent)}.text-editor-actions{display:flex;gap:6px;justify-content:flex-end}.text-editor-btn{padding:5px 14px;border-radius:var(--radius);font-size:12px;cursor:pointer;border:1px solid var(--border);transition:background .15s,border-color .15s}.text-editor-btn--cancel{background:transparent;color:var(--text-dim)}.text-editor-btn--cancel:hover{background:var(--bg-section);color:var(--text)}.text-editor-btn--save{background:var(--accent);border-color:var(--accent);color:#fff}.text-editor-btn--save:hover{background:var(--accent-dim);border-color:var(--accent-dim)}.text-editor-hint{font-size:10px;color:var(--text-dim);padding-left:2px;white-space:nowrap}.materials-bar{border-bottom:1px solid var(--border)}.material-chip{padding:5px 12px;background:var(--bg-deep);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-dim);font-size:12px;cursor:pointer;transition:border-color .15s,color .15s,background .15s;white-space:nowrap}.material-chip:hover{border-color:#666;color:var(--text)}.material-chip--active{border-color:var(--accent);color:var(--accent);background:var(--bg-section)}