.sb{display:flex;margin:12px 0;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--bg);color:var(--ink)}.sb.sb-full{position:fixed;inset:0;z-index:1000;margin:0;border-radius:0;border:0}.sb-palette{width:210px;flex:none;display:flex;flex-direction:column;gap:10px;padding:12px;overflow-y:auto;background:var(--card);border-right:1px solid var(--line)}.sb-tip,.sb-about{margin:0;font-size:12px;color:var(--mute);line-height:1.45}.sb-about{min-height:4.4em;padding:8px 10px;background:var(--bg);border:1px solid var(--line);border-radius:6px}.sb-pieces{display:grid;grid-template-columns:1fr 1fr;gap:6px}.sb-piece{display:flex;flex-direction:column;align-items:center;gap:4px;padding:8px 4px 6px;font:inherit;font-size:11px;line-height:1.2;text-align:center;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:8px;cursor:grab}.sb-piece:hover,.sb-piece:focus-visible{border-color:var(--c);box-shadow:inset 0 0 0 1px var(--c)}.sb-piece:active{cursor:grabbing}.sb-icon{display:grid;place-items:center;width:30px;height:30px;border-radius:8px;color:#fff;background:var(--c);flex:none}.sb-icon svg{width:18px;height:18px}.sb-legend{display:grid;gap:4px;font-size:11px;color:var(--mute)}.sb-legend span{display:flex;align-items:center;gap:8px}.sb-legend line{stroke:var(--ink);stroke-width:2}.sb-clear{margin-top:auto}.sb-board{position:relative;flex:1;overflow:hidden;cursor:grab;touch-action:none;user-select:none;background-color:var(--bg);background-image:radial-gradient(circle,var(--line) 1px,transparent 1.2px)}.sb-board[data-dragging=pan]{cursor:grabbing}.sb-board[data-dragging=link]{cursor:crosshair}.sb-surface{position:absolute;inset:0;transform-origin:0 0}.sb-empty{position:absolute;inset:0;display:grid;place-items:center;padding:24px;text-align:center;color:var(--mute);pointer-events:none}.sb-wires{position:absolute;left:0;top:0;width:1px;height:1px;overflow:visible;pointer-events:none}.sb-wire{pointer-events:stroke;cursor:pointer;stroke:var(--ink);stroke-width:2;fill:none}.sb-wire .hit{stroke:transparent;stroke-width:14}.sb-wire text{fill:var(--ink);stroke:var(--bg);stroke-width:4;paint-order:stroke;font-size:12px;font-family:var(--mono);pointer-events:none}.sb-wire:hover,.sb-wire.on{stroke:var(--acc)}.sb-ghost{stroke:var(--acc);stroke-width:2;stroke-dasharray:4 4;fill:none}.sb-box{position:absolute;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:6px;background:var(--card);border:1.5px solid var(--line);border-top:4px solid var(--c);border-radius:8px;box-shadow:0 2px 8px #00000014;cursor:move;box-sizing:border-box}.sb-box.on{border-color:var(--c);box-shadow:0 0 0 3px color-mix(in srgb,var(--c) 30%,transparent)}.sb-box.target{border-color:var(--acc);box-shadow:0 0 0 3px var(--accs)}.sb-label{font-size:12.5px;font-weight:600;text-align:center;line-height:1.2;overflow:hidden;max-height:2.4em}.sb-input{font:inherit;font-size:12.5px;padding:3px 6px;border:1px solid var(--acc);border-radius:5px;background:var(--bg);color:var(--ink)}.sb-box-input{width:100%;text-align:center;box-sizing:border-box}.sb-arrow-input{position:absolute;width:160px;z-index:3}.sb-handle{position:absolute;width:12px;height:12px;border-radius:50%;background:var(--card);border:2px solid var(--c);cursor:crosshair;opacity:0;transition:opacity .12s;box-sizing:border-box}.sb-box:hover .sb-handle,.sb-box.on .sb-handle,.sb-board[data-dragging=link] .sb-handle{opacity:1}.sb-handle:hover{background:var(--c)}.sb-handle.n{top:-7px;left:calc(50% - 6px)}.sb-handle.s{bottom:-7px;left:calc(50% - 6px)}.sb-handle.e{right:-7px;top:calc(50% - 6px)}.sb-handle.w{left:-7px;top:calc(50% - 6px)}.sb-toolbar,.sb-view{position:absolute;display:flex;align-items:center;gap:6px;padding:5px 7px;background:var(--card);border:1px solid var(--line);border-radius:10px;box-shadow:0 4px 14px #0000001f;cursor:default}.sb-toolbar{top:10px;left:50%;transform:translate(-50%);flex-wrap:wrap;max-width:calc(100% - 24px)}.sb-view{right:10px;bottom:10px}.sb-toolbar button,.sb-view button{font-size:12px;padding:3px 9px}.sb-tool-name{font-size:12px;font-weight:600;padding:0 6px}.sb-danger{color:var(--bad)}@media(max-width:700px){.sb{flex-direction:column}.sb-palette{width:auto;max-height:38%;border-right:0;border-bottom:1px solid var(--line)}.sb-pieces{grid-template-columns:repeat(4,1fr)}}