:root {
  --paper:#e7e1cb; --ink:#1a160f; --dim:#6f6656; --rule:#cbc3a6;
  --terra:#bd6f47; --red:#d8452f; --amber:#d38a1f; --green:#3f8a4a; --blue:#3b6ea5;
  --sp:24px;
}
* { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }
body {
  background:var(--paper); color:var(--ink);
  font-family:"IBM Plex Mono", ui-monospace, monospace;
  font-size:15px; line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
canvas { display:block; image-rendering:pixelated; }
.wrap { max-width:1080px; margin:0 auto; padding:0 var(--sp); }
h1,h2,h3 { font-weight:700; line-height:1; letter-spacing:-1px; }
a { color:var(--ink); }

nav { display:flex; align-items:center; justify-content:space-between;
  padding:22px var(--sp); max-width:1080px; margin:0 auto; }
nav .mark { font-weight:700; font-size:16px; letter-spacing:2px; text-transform:uppercase; }
nav .links { display:flex; gap:24px; font-size:13px; }
nav .links a { text-decoration:none; color:var(--dim); }
nav .links a:hover { color:var(--ink); }

.hero { padding:24px var(--sp) 60px; max-width:1080px; margin:0 auto; }
.hero-copy { margin-bottom:22px; max-width:52ch; }
.hero h1 { font-size:clamp(56px,9vw,112px); letter-spacing:-4px; margin-bottom:16px; }
.hero p.lede { font-size:16px; color:var(--dim); max-width:50ch; }
.actions { margin-top:20px; display:flex; gap:20px; align-items:center; }
.btn { font-size:13px; text-transform:uppercase; letter-spacing:1px; text-decoration:none;
  background:var(--terra); color:#fff; padding:11px 18px; }
.btn:hover { opacity:.85; }
.textlink { font-size:13px; color:var(--dim); }

/* the box: a bare framed field, no ornament */
.scene { margin:0; position:relative; }
.field { border:1px solid var(--ink); background:var(--paper); overflow:hidden; }
.field canvas { width:100%; height:auto; }
.scene .tag { position:absolute; top:-1px; left:-1px;
  background:var(--ink); color:var(--paper); font-size:11px; letter-spacing:2px;
  text-transform:uppercase; padding:4px 9px; }

section { padding:80px 0; border-top:1px solid var(--rule); }
section h2 { font-size:clamp(28px,4vw,40px); margin-bottom:22px; letter-spacing:-1.5px; }
.prose p { max-width:62ch; margin-bottom:16px; }
.prose strong { font-weight:700; }

.spec { list-style:none; margin-top:8px; }
.spec li { display:grid; grid-template-columns:150px 1fr; gap:20px;
  padding:15px 0; border-bottom:1px solid var(--rule); align-items:baseline; }
.spec .key { font-weight:700; text-transform:uppercase; font-size:12px; letter-spacing:1px; }

.states { display:grid; grid-template-columns:repeat(3,1fr); gap:0; border:1px solid var(--rule); }
.state { padding:22px; border-right:1px solid var(--rule); border-bottom:1px solid var(--rule); }
.states .state:nth-child(3n) { border-right:none; }
.states .state:nth-last-child(-n+3) { border-bottom:none; }
.state canvas { width:100%; height:auto; margin-bottom:14px; border:1px solid var(--ink); }
.state h3 { font-size:15px; margin-bottom:6px; }
.state code { font-size:11px; text-transform:uppercase; letter-spacing:1px;
  background:var(--ink); color:var(--paper); padding:2px 6px; }
.state.scan code{background:var(--blue)}.state.write code{background:var(--green)}.state.push code,.state.wall code{background:var(--red)}.state.idea code{background:var(--amber);color:#1a160f}.state.idle code{background:var(--dim)}
.state p { font-size:13px; color:var(--dim); margin-top:9px; max-width:30ch; }

.loghead { display:flex; align-items:center; gap:14px; margin-bottom:18px; flex-wrap:wrap; }
.status { font-weight:700; text-transform:uppercase; letter-spacing:1px; font-size:12px;
  border:1px solid var(--ink); padding:5px 10px; }
.status.booting { background:var(--amber); color:#1a160f; border-color:var(--amber); }
#lognote { color:var(--dim); font-size:13px; max-width:56ch; }
#logcount { color:var(--dim); font-size:12px; margin-left:auto; }
.status.running { background:var(--green); color:#fff; border-color:var(--green); }
.status.queued { background:transparent; color:var(--dim); border-color:var(--rule); }
.status.armed { background:var(--red); color:#fff; border-color:var(--red); }
.log { list-style:none; border-top:1px solid var(--ink); margin-top:14px; }
.log li { display:grid; grid-template-columns:120px 68px 1fr; gap:16px;
  padding:13px 0; border-bottom:1px solid var(--rule); font-size:13px; align-items:baseline; }
.log .ts { color:var(--dim); }
.log .typ { text-transform:uppercase; font-size:11px; letter-spacing:1px; color:var(--dim); }
.log .typ.boot { color:var(--terra); }
.log .typ.wall { color:var(--red); }
.log .typ.idle { color:var(--dim); }
.log .txt { color:var(--ink); }

footer { padding:44px var(--sp); border-top:1px solid var(--rule);
  color:var(--dim); font-size:13px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; }

@media (max-width:760px){
  nav .links { display:none; }
  .hero h1 { letter-spacing:-2px; }
  .states { grid-template-columns:1fr; }
  .states .state { border-right:none; }
  .spec li, .log li { grid-template-columns:1fr; gap:3px; }
}
@media (prefers-reduced-motion:reduce){ html { scroll-behavior:auto; } }

/* experiment boxes */
.cells { display:grid; grid-template-columns:repeat(2,1fr); gap:0; border:1px solid var(--rule); }
.cell { display:block; text-decoration:none; color:var(--ink); padding:26px 26px 24px;
  border-right:1px solid var(--rule); border-bottom:1px solid var(--rule); position:relative; }
.cells .cell:nth-child(2n){ border-right:none; }
.cells .cell:nth-last-child(-n+2){ border-bottom:none; }
.cell::before { content:""; position:absolute; left:0; top:0; bottom:0; width:4px; background:var(--acc,var(--ink)); }
.cell:hover { background:#efe9d6; }
.cell .ctag { font-size:11px; text-transform:uppercase; letter-spacing:2px; color:var(--dim); }
.cell h3 { font-size:22px; margin:11px 0 8px; letter-spacing:-.5px; }
.cell p { font-size:13px; color:var(--dim); max-width:42ch; }
.cell .cstat { display:inline-block; margin-top:16px; font-size:11px; text-transform:uppercase;
  letter-spacing:1px; border:1px solid var(--acc,var(--ink)); color:var(--ink); padding:3px 8px; }
.c01{--acc:#3b6ea5}.c02{--acc:#3f8a4a}.c03{--acc:#d38a1f}.c04{--acc:#d8452f}
.backlink { display:inline-block; margin-bottom:14px; font-size:13px; color:var(--dim); text-decoration:none; }
.backlink:hover { color:var(--ink); }
.cellwarn { margin-top:18px; font-size:13px; color:var(--red); max-width:60ch; }
@media (max-width:760px){ .cells { grid-template-columns:1fr; } .cells .cell { border-right:none; } }

/* between-box navigation */
.prevnext { display:flex; justify-content:space-between; gap:16px;
  padding:34px 0 4px; border-top:1px solid var(--rule); margin-top:44px; }
.pn-link { text-decoration:none; color:var(--ink); display:flex; flex-direction:column; gap:4px; }
.pn-right { text-align:right; align-items:flex-end; }
.pn-dir { font-size:11px; text-transform:uppercase; letter-spacing:1px; color:var(--dim); }
.pn-name { font-size:18px; font-weight:700; letter-spacing:-.5px; }
.pn-link:hover .pn-name { color:var(--terra); }

/* focus + motion polish */
a:focus-visible, .btn:focus-visible, .cell:focus-visible, .pn-link:focus-visible {
  outline:2px solid var(--ink); outline-offset:3px; }
.cell { transition:background .12s steps(2); }
.btn { transition:opacity .12s steps(2); }

/* contract address */
.ca { display:inline-flex; align-items:center; gap:12px; margin-top:6px; cursor:pointer;
  background:transparent; border:1px solid var(--ink); color:var(--ink);
  font-family:inherit; font-size:13px; padding:9px 13px; }
.ca:hover { background:#efe9d6; }
.ca-k { text-transform:uppercase; letter-spacing:1px; color:var(--dim); font-size:11px; }
.ca-v { letter-spacing:.4px; }
.ca-copy { text-transform:uppercase; letter-spacing:1px; font-size:11px; color:var(--terra); }