:root{--bg:#171a1f;--surface:#222831;--surface-soft:#2b323d;--text:#f5f7fa;--muted:#aeb7c5;--line:#424b57;--digit:#13a99a;--carry:#ff6655;--amber:#e6a500;--shadow:0 18px 50px rgba(0,0,0,.26);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--text);background:var(--bg)}*{box-sizing:border-box}body{margin:0;min-width:320px;background:linear-gradient(90deg,rgba(174,183,197,.06) 1px,transparent 1px) 0 0/64px 64px,linear-gradient(0deg,rgba(174,183,197,.04) 1px,transparent 1px) 0 0/64px 64px,var(--bg)}button,input{font:inherit}code{font-family:SFMono-Regular,Consolas,monospace}.app-shell{width:min(1320px,calc(100vw - 40px));margin:0 auto;padding:24px 0 36px}.app-header{display:grid;grid-template-columns:minmax(250px,.72fr) minmax(480px,1.7fr);gap:20px;align-items:start;margin-bottom:14px}.brand-block{display:flex;align-items:center;gap:12px;min-height:78px}.brand-mark{width:43px;height:43px;display:grid;place-items:center;border:2px 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.probe-outputs{gap:12px;padding-left:28px}.step-column .probe-outputs:before{left:7px;top:14px;bottom:14px}.step-column .probe-branch{grid-template-columns:28px minmax(150px,1fr) 28px minmax(88px,.5fr);gap:7px}.step-column .branch-line,.step-column .branch-arrow{font-size:28px}.step-column .probe-node{padding:14px;border-radius:11px;font-size:15px}.step-column .probe-node small{font-size:10px}.step-column .probe-result strong{font-size:22px}.step-column .probe-result small{font-size:10px}.step-column .probe-result svg{width:16px;height:16px}@media(max-width:900px){.step-columns{grid-template-columns:1fr;gap:28px}.step-column .probe-branch{grid-template-columns:38px minmax(175px,1fr) 34px minmax(110px,.5fr)}}