.cube-unified{--cu-accent:var(--accent,#2457d6);--cu-line:var(--line,#d6dde7);--cu-muted:var(--ink-2,#536076);color:var(--ink,#16213a);padding:0!important;scroll-margin-top:110px}.cube-unified *{box-sizing:border-box}.cube-unified .cu-intro{font-size:16px;line-height:1.65;margin-bottom:20px}.cube-unified button{min-height:46px;border:1px solid var(--cu-line);border-radius:9px;background:var(--surface,#fff);color:inherit;padding:10px 14px;font:inherit;font-size:14px;cursor:pointer;touch-action:manipulation}.cube-unified button:focus-visible,.cube-unified summary:focus-visible,.cube-unified input:focus-visible{outline:3px solid var(--cu-accent);outline-offset:3px}.cube-unified button:disabled{opacity:.45;cursor:default}.cube-unified [hidden]{display:none!important}.cube-unified .cu-modes{display:grid;grid-template-columns:1fr 1fr;gap:8px}.cube-unified .cu-modes button{font-weight:650;padding:14px 10px;line-height:1.35}.cube-unified .cu-modes [aria-pressed=true]{background:var(--accent-soft,#e9effc);border-color:var(--cu-accent);color:var(--cu-accent);box-shadow:inset 0 -3px var(--cu-accent)}.cube-unified .cu-instruction{min-height:3.4em;font-size:14px;color:var(--cu-muted);margin:12px 0}.cu-workbench{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(230px,1fr);gap:24px;align-items:start}.cu-stage{background:var(--bg-2,#f4f5f7);border:1px solid var(--cu-line);border-radius:14px}.cu-stage svg{display:block;width:100%;height:auto;overflow:visible}.cu-edge{stroke:var(--ink-3,#738198);stroke-width:2}.cu-triangle{fill:var(--cu-accent);fill-opacity:.16;stroke:none}.cu-triangle-edge{stroke:var(--cu-accent);stroke-width:4}.cu-tick{stroke:var(--ink,#16213a);stroke-width:3;paint-order:stroke;stroke-linecap:round}.cu-label{font:600 17px system-ui;fill:var(--ink,#16213a);stroke:var(--bg-2,#f4f5f7);stroke-width:4;paint-order:stroke}.cu-selected{fill:none;stroke:var(--cu-accent);stroke-width:3}.cu-vtx{cursor:pointer}.cu-caption{font-size:12px!important;color:var(--cu-muted);margin:0 0 10px!important}.cu-vertices{display:grid;grid-template-columns:repeat(4,1fr);gap:7px}.cube-unified .cu-vertices button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:82px;padding:8px 3px}.cu-vertices button>span:first-child{font-size:18px;font-weight:650}.cu-vertices small{font-size:10px}.cu-dot{display:block;width:16px;height:16px;border:2px solid #718097;background:white;border-radius:50%}.cu-black .cu-dot{background:#172333;border-color:#a1b0c2}.cu-vertices button[aria-pressed=true]{outline:2px solid var(--cu-accent);outline-offset:1px;background:var(--accent-soft,#e9effc)}.cu-selection{margin-top:22px;border-top:1px solid var(--cu-line);padding-top:18px}.cube-unified .cu-selection h3{font-size:18px;margin:0 0 10px}.cu-selection p{font-size:14px!important;line-height:1.5;margin:7px 0}.cu-sides{display:grid;gap:5px;font-size:13px;line-height:1.5;font-variant-numeric:tabular-nums}.cu-sides>div{background:var(--bg-2,#f4f5f7);border-radius:5px;padding:7px 9px}.cu-verdict{padding:8px 0}.cu-verdict strong{font-size:14px;line-height:1.5;display:block}.cu-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}.cube-unified .cu-primary{background:var(--cu-accent);color:var(--bg,#fff);font-weight:650;border-color:var(--cu-accent)}.cube-unified .cu-check-note{font-size:12px;line-height:1.5;color:var(--cu-muted)}.cu-feedback:not(:empty){padding:16px;border-left:3px solid var(--cu-accent);background:var(--accent-soft,#e9effc);font-size:14px;line-height:1.6;margin:14px 0}.cube-unified .cu-view{border:0;margin-top:12px;padding:0}.cube-unified .cu-view summary,.cube-unified .cu-length-help summary{cursor:pointer;min-height:44px;padding:12px 0;font-size:14px}.cube-unified .cu-view label{display:grid;grid-template-columns:70px 1fr;gap:10px;align-items:center;font-size:13px}.cube-unified input[type=range]{min-width:0;width:100%;height:44px;accent-color:var(--cu-accent)}.cube-unified .cu-view p,.cube-unified .cu-length-help p{font-size:13px;line-height:1.6;color:var(--cu-muted)}.cu-length-help{margin-top:22px;border-top:1px solid var(--cu-line)}
@media(max-width:680px){.cu-workbench{grid-template-columns:1fr;gap:20px}.cu-stage{max-width:420px;margin:auto}.cu-stage svg{max-height:355px}.cube-unified .cu-modes button{font-size:13px;padding:12px 8px}.cube-unified .cu-instruction{min-height:0}.cu-vertices{grid-template-columns:repeat(4,1fr)}.cube-unified .cu-vertices button{min-height:76px}.cu-actions>button{flex:1 1 140px}.cu-actions .cu-primary{flex-basis:100%}.cu-selection{margin-top:18px}}

.cube-unified .cu-sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}.cube-unified .cu-quick{font-size:13px;line-height:1.5;padding:10px 12px;margin:8px 0;color:var(--cu-accent);background:var(--accent-soft,#e9effc);border-radius:8px}.cube-unified{padding:18px!important}