:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--paper:#12110d;--paper-2:#1b1a15;--paper-3:#24231c;--ink:#f3ead8;--ink-dim:#b7ad97;--ink-faint:#7d7566;--line:#f3ead81f;--line-strong:#f3ead838;--alice:#ff7a45;--alice-2:#ffd0bf;--alice-dim:#ff7a4524;--bob:#3ecfc9;--bob-2:#c5f4f1;--bob-dim:#3ecfc924;--gold:#e8c36a;--gold-dim:#e8c36a29;--ok:#9dd89a;--danger:#e37a7a;--shadow:0 24px 60px #00000059;--serif:"Iowan Old Style", "Palatino Linotype", Palatino, "Times New Roman", serif;--sans:ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;--mono:ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, monospace;--radius:18px;--focus:0 0 0 2px var(--paper), 0 0 0 4px var(--gold)}*{box-sizing:border-box}html,body{background:var(--paper);min-height:100%;color:var(--ink);margin:0}html{-webkit-text-size-adjust:100%}body{font-family:var(--sans);background-image:radial-gradient(1200px 600px at 10% -10%, #ff7a4514, transparent 55%), radial-gradient(900px 500px at 100% 0%, #3ecfc914, transparent 50%), linear-gradient(180deg, #16140f 0%, var(--paper) 40%);font-size:16px;line-height:1.5}button,textarea,input{font:inherit;color:inherit}button{cursor:pointer}:focus-visible{box-shadow:var(--focus);outline:none}.skip{background:var(--gold);color:#1a1408;z-index:5;border-radius:8px;padding:8px 12px;position:absolute;top:-40px;left:12px}.skip:focus{top:12px}.shell{width:min(1180px,100% - 32px);margin:0 auto;padding:28px 0 80px}.hero{border-bottom:1px solid var(--line);grid-template-columns:1fr auto;align-items:end;gap:24px 32px;padding:12px 0 28px;display:grid}.kicker{font-family:var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--ink-dim);align-items:center;gap:10px;margin:0 0 10px;font-size:12px;display:flex}.kicker .dot{background:var(--gold);border-radius:50%;width:8px;height:8px}h1{font-family:var(--serif);letter-spacing:-.03em;margin:0 0 12px;font-size:clamp(2.4rem,5vw,3.6rem);font-weight:600;line-height:.95}h1 em{color:var(--gold);font-style:italic;font-weight:500}.lede{max-width:46rem;color:var(--ink-dim);margin:0;font-size:1.05rem}.hero-actions{flex-wrap:wrap;justify-content:flex-end;gap:10px;display:flex}.btn{appearance:none;border:1px solid var(--line-strong);background:var(--paper-2);color:var(--ink);border-radius:999px;align-items:center;gap:8px;min-height:44px;padding:0 16px;transition:background .16s,border-color .16s,transform .16s;display:inline-flex}.btn:hover{background:var(--paper-3)}.btn:active{transform:translateY(1px)}.btn.primary{background:var(--gold);color:#1a1408;border-color:#0000;font-weight:600}.btn.primary:hover{background:#f0d48a}.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}.btn svg{width:16px;height:16px}.stage{grid-template-columns:minmax(0,1fr) 148px minmax(0,1fr);grid-template-areas:"alice wire bob";align-items:stretch;gap:16px;margin-top:28px;display:grid}.replica.alice{grid-area:alice}.replica.bob{grid-area:bob}.wire{grid-area:wire}.replica{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);flex-direction:column;min-width:0;display:flex;overflow:hidden}.replica.alice{border-color:#ff7a4559}.replica.bob{border-color:#3ecfc959}.replica.offline{opacity:.98}.replica-head{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;display:flex}.who{align-items:center;gap:10px;min-width:0;display:flex}.avatar{width:36px;height:36px;font-family:var(--mono);border-radius:50%;place-items:center;font-size:13px;font-weight:700;display:grid}.alice .avatar{background:var(--alice);color:#2a1008}.bob .avatar{background:var(--bob);color:#062221}.who h2{letter-spacing:-.02em;margin:0;font-size:1rem}.meta{color:var(--ink-faint);font-family:var(--mono);white-space:nowrap;text-overflow:ellipsis;margin:0;font-size:12px;overflow:hidden}.plug{appearance:none;border:1px solid var(--line-strong);background:var(--paper-3);color:var(--ink);white-space:nowrap;border-radius:999px;flex-shrink:0;align-items:center;gap:8px;min-width:44px;min-height:44px;padding:0 14px;font-size:13px;font-weight:600;display:inline-flex}.plug[aria-pressed=true]{background:var(--ok);color:#102010;border-color:#0000}.alice .plug[aria-pressed=false]{background:var(--alice-dim);border-color:var(--alice);color:var(--alice-2)}.bob .plug[aria-pressed=false]{background:var(--bob-dim);border-color:var(--bob);color:var(--bob-2)}.plug .lamp{background:currentColor;border-radius:50%;width:8px;height:8px;box-shadow:0 0 8px}label.editor{flex-direction:column;flex:1;gap:8px;padding:14px 16px 8px;display:flex}label.editor span{letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint);font-size:12px;font-family:var(--mono)}textarea{resize:vertical;border:1px solid var(--line);letter-spacing:.01em;background:#0e0d0a;border-radius:12px;width:100%;min-height:148px;padding:14px 14px 36px;font-size:1.15rem;line-height:1.45}.alice textarea{caret-color:var(--alice)}.bob textarea{caret-color:var(--bob)}textarea::placeholder{color:var(--ink-faint);opacity:.85}.clocks{font-family:var(--mono);color:var(--ink-faint);justify-content:space-between;gap:8px;padding:0 16px 14px;font-size:12px;display:flex}.clocks b{color:var(--ink-dim);font-weight:600}.wire{border:1px dashed var(--line-strong);background:linear-gradient(#e8c36a0f,#0000 70%);border-radius:16px;flex-direction:column;justify-content:center;align-items:center;gap:10px;padding:12px 8px;display:flex;position:relative}.wire.live{border-style:solid;border-color:#e8c36a59}.cable{width:100%;height:72px}.cable path{fill:none;stroke:var(--line-strong);stroke-width:2px;stroke-dasharray:6 7}.wire.live .cable path{stroke:var(--gold);stroke-dasharray:none}.wire .pkt{background:var(--gold);border-radius:50%;width:10px;height:10px;animation:.9s ease-in-out infinite hop;position:absolute;top:36%;transform:translate(-50%,-50%)}@keyframes hop{0%{opacity:0;left:8%}15%{opacity:1}85%{opacity:1}to{opacity:0;left:92%}}.wire-label{font-family:var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--gold);text-align:center;font-size:11px}.queue{font-family:var(--mono);color:var(--ink-dim);text-align:center;font-size:11px}.panel{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);margin-top:22px;padding:18px 18px 16px}.panel h2{font-family:var(--serif);margin:0 0 6px;font-size:1.35rem;font-weight:600}.panel p.sub{color:var(--ink-dim);margin:0 0 14px}.row{flex-wrap:wrap;align-items:center;gap:10px 16px;margin-bottom:12px;display:flex}.check{color:var(--ink-dim);align-items:center;gap:8px;font-size:14px;display:inline-flex}.check input{width:18px;height:18px;accent-color:var(--gold)}.tape{flex-wrap:wrap;gap:6px;min-height:64px;display:flex}.cell{border:1px solid var(--line);min-width:42px;min-height:58px;font-family:var(--mono);background:#0e0d0a;border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:2px;padding:6px 6px 4px;display:flex}.cell.alice{background:var(--alice-dim);border-color:#ff7a4573}.cell.bob{background:var(--bob-dim);border-color:#3ecfc973}.cell.tomb{opacity:.45}.cell .ch{font-family:var(--serif);min-height:1.1em;font-size:1.15rem;line-height:1}.cell.tomb .ch{text-decoration:line-through}.cell .id{color:var(--ink-faint);font-size:10px}.cell .after{color:var(--ink-faint);letter-spacing:.02em;font-size:9px}.tape-empty{color:var(--ink-faint);font-family:var(--mono);padding:18px 4px;font-size:13px}.proof{border-top:1px solid var(--line);grid-template-columns:auto 1fr;align-items:start;gap:14px 16px;margin-top:8px;padding-top:14px;display:grid}.badge{min-width:44px;min-height:44px;font-weight:700;font-family:var(--mono);border-radius:12px;place-items:center;display:grid}.badge.ok{background:var(--gold-dim);color:var(--gold)}.badge.no{color:var(--danger);background:#e37a7a26}.proof p{color:var(--ink-dim);margin:0}.proof code{font-family:var(--mono);border:1px solid var(--line);color:var(--ink);background:#0e0d0a;border-radius:6px;padding:1px 6px;font-size:13px}.log{grid-template-columns:1fr 1fr;gap:16px;margin-top:18px;display:grid}.log h3{letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint);font-size:.85rem;font-family:var(--mono);margin:0 0 8px;font-weight:600}.ops{max-height:220px;font-family:var(--mono);border:1px solid var(--line);background:#0e0d0a;border-radius:12px;padding:10px 12px;font-size:12px;overflow:auto}.ops .op{border-bottom:1px solid #f3ead80f;grid-template-columns:42px 1fr;gap:8px;padding:4px 0;display:grid}.ops .op:last-child{border-bottom:0}.ops .kind.ins{color:var(--ok)}.ops .kind.del{color:var(--danger)}.sr-only{clip:rect(0 0 0 0);width:1px;height:1px;position:absolute;overflow:hidden}.why{margin-top:22px}.why details{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);padding:4px}.why summary{cursor:pointer;align-items:center;min-height:44px;padding:8px 14px;font-weight:600;list-style:none;display:flex}.why summary::-webkit-details-marker{display:none}.why .body{color:var(--ink-dim);max-width:60rem;padding:0 14px 16px}.why .body p{margin:0 0 10px}.why .body ul{margin:0;padding-left:1.1rem}.why .body code{font-family:var(--mono);color:var(--gold);font-size:.92em}footer.note{color:var(--ink-faint);flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:28px;font-size:13px;display:flex}footer.note a{color:var(--ink-dim)}@media (max-width:860px){.hero{grid-template-columns:1fr}.hero-actions{justify-content:flex-start}.stage{grid-template-columns:1fr;grid-template-areas:"alice""wire""bob"}.wire{flex-direction:row;height:auto;padding:10px 14px}.cable{width:72px;height:36px}.log,.proof{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){.btn,.plug{transition:none}.wire .pkt,.wire .pkt.hop{display:none;animation:none!important}}