:root{--bg:#eef0f7;--bg-raised:#fffdf9;--text:#2f2440;--text-dim:#6a5f78;--border:#d9c8f0;--accent:#5c2d91;--accent-dark:#45216e;--accent-contrast:#fffdf9;--accent-bg:#efe2fb;--warn:#b5740e;--warn-bg:#fbedd7;--mono:ui-monospace, "SF Mono", Consolas, monospace;--sans:"Comic Neue", sans-serif;--display:"DynaPuff", "Comic Neue", sans-serif;--radius-sm:8px;--radius-md:14px;--border-width:3px;--shadow-sticker-sm:3px 3px 0 var(--border)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:var(--sans);color:var(--text);background:var(--bg)}button{font-family:inherit}@media (prefers-reduced-motion:reduce){*{transition-duration:.001ms!important;animation-duration:.001ms!important}}.app{flex-direction:column;height:100%;display:flex}.topbar{border-bottom:var(--border-width) solid var(--text);background:var(--bg-raised);flex:none;align-items:center;gap:16px;padding:10px 16px;display:flex}.brand{font-family:var(--display);letter-spacing:.02em;color:var(--accent);font-size:15px;font-weight:600}.topbar-title{color:var(--text-dim);text-align:center;flex:1;font-size:14px}.topbar-actions{gap:8px;display:flex}.btn{font-family:var(--sans);border-radius:var(--radius-sm);border:2px solid var(--text);background:var(--bg-raised);color:var(--text);cursor:pointer;padding:7px 14px;font-size:13px;font-weight:700;transition:transform .12s,box-shadow .12s,background .12s}.btn:disabled{opacity:.4;cursor:default}.btn-primary{background:var(--accent);border-color:var(--text);color:var(--accent-contrast);box-shadow:var(--shadow-sticker-sm)}.btn-primary:hover:not(:disabled){background:var(--accent-dark);box-shadow:none;transform:translate(1px,1px)}.btn-link{color:var(--accent);cursor:pointer;text-align:left;background:0 0;border:none;padding:4px 0;font-size:13px;text-decoration:underline}.body{flex:1;grid-template-columns:260px 1fr 280px;min-height:0;display:grid}@media (width<=900px){.body{grid-template-rows:auto 1fr auto;grid-template-columns:1fr}}.rail,.status-panel{border-color:var(--border);padding:16px;overflow-y:auto}.rail{border-right:1px solid var(--border)}.status-panel{border-left:1px solid var(--border)}.rail-heading{font-family:var(--display);text-transform:uppercase;letter-spacing:.06em;color:var(--accent);margin:0 0 10px;font-size:12px;font-weight:600}.rail-section+.rail-section{border-top:1px solid var(--border);margin-top:22px;padding-top:18px}.control-row{grid-template-columns:88px 1fr 44px;align-items:center;gap:8px;margin-bottom:10px;font-size:13px;display:grid}.control-row-checkbox{cursor:pointer;grid-template-columns:auto 1fr}.control-label{color:var(--text-dim)}.control-value{font-family:var(--mono);text-align:right;color:var(--text-dim);font-size:12px}.text-input,select{border:1px solid var(--border);background:var(--bg-raised);color:var(--text);border-radius:4px;width:100%;padding:4px 6px;font-size:13px}.hint-text{color:var(--text-dim);margin-top:8px;font-size:12px;line-height:1.4}.error-text{color:var(--warn);margin-top:8px;font-size:13px}.canvas-area{background:repeating-conic-gradient(var(--bg) 0% 25%, var(--bg-raised) 0% 50%) 0 0 / 24px 24px;flex-direction:column;min-width:0;min-height:0;display:flex}.view-modes{border-bottom:1px solid var(--border);background:var(--bg-raised);flex:none;align-items:center;gap:4px;padding:8px 12px;display:flex}.view-tab{color:var(--text-dim);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:6px;padding:6px 12px;font-size:13px}.view-tab.active{background:var(--bg);border-color:var(--border);color:var(--text)}.view-tab:focus-visible,.btn:focus-visible,.btn-link:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.computing-indicator{color:var(--text-dim);margin-left:auto;font-size:12px}.canvas-viewport{cursor:grab;flex:1;min-height:0;position:relative;overflow:hidden}.canvas-viewport:active{cursor:grabbing}.canvas-transform-layer{transform-origin:0 0;margin-top:calc(-1 * var(--half-h,0px));position:absolute;top:50%;left:50%}.canvas-transform-layer canvas,.svg-overlay svg{background:#fff;display:block;box-shadow:0 8px 24px #00000040}.canvas-empty{height:100%;color:var(--text-dim);justify-content:center;align-items:center;font-size:14px;display:flex}.drop-panel{flex-direction:column;gap:12px;display:flex}.dropzone{border:2px dashed var(--accent);border-radius:var(--radius-md);text-align:center;cursor:pointer;padding:28px 14px}.dropzone.drag-over{border-color:var(--accent);background:var(--accent-bg)}.dropzone-title{margin-bottom:4px;font-size:14px}.dropzone-hint{color:var(--text-dim);font-size:12px}.empty-state-help{color:var(--text-dim);flex-direction:column;gap:8px;font-size:12px;line-height:1.5;display:flex}.status-summary{color:var(--text-dim);margin-bottom:12px;font-size:13px}.warnings-list{flex-direction:column;gap:6px;margin:0;padding:0;list-style:none;display:flex}.warning-item{text-align:left;border:1px solid var(--border);background:var(--warn-bg);width:100%;color:var(--text);cursor:pointer;border-radius:6px;align-items:center;gap:8px;padding:8px;font-size:12px;display:flex}.warning-icon{color:var(--warn)}.footer{color:var(--text-dim);border-top:1px solid var(--border);text-align:center;flex:none;padding:8px 16px;font-size:11px}