/* Superintelligentia — Infrastructure for AI agents
   Palette: warm near-black ground, bone text, oxidised-bronze accent. */

:root {
  --ink: #1a1614;
  --ink-2: #211c19;
  --ink-3: #2a2421;
  --rule: #3a322d;
  --bone: #efe7da;
  --bone-2: #cfc4b3;
  --bone-3: #9a8f80;
  --bronze: #c2a06a;
  --bronze-2: #8f7246;
  --red: #a8442c;

  --serif: "Cormorant Garamond", "EB Garamond", Garamond, "Times New Roman", serif;
  --mono: "IBM Plex Mono", "SF Mono", Menlo, Consolas, monospace;

  --max: 1120px;
  --gutter: clamp(20px, 5vw, 64px);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--ink);
  color: var(--bone);
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--bone); text-decoration-color: var(--bronze-2); text-underline-offset: 3px; }
a:hover { color: var(--bronze); }

.skip {
  position: absolute; left: -999px; top: 8px;
  background: var(--bronze); color: var(--ink); padding: 8px 12px; font-family: var(--mono); font-size: 13px;
}
.skip:focus { left: 8px; z-index: 100; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- header ---------- */
header.top {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--ink) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
}
header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 64px; }
.wordmark { font-weight: 600; letter-spacing: 0.02em; font-size: 22px; text-decoration: none; display: flex; align-items: center; gap: 12px; }
.wordmark svg { width: 28px; height: 28px; }
nav.main ul { list-style: none; display: flex; gap: 16px; margin: 0; padding: 0; flex-wrap: wrap; justify-content: flex-end; }
nav.main a { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.04em; text-transform: uppercase; text-decoration: none; color: var(--bone-2); white-space: nowrap; }
nav.main a:hover { color: var(--bronze); }
@media (max-width: 900px) { nav.main { display: none; } }

/* ---------- typography ---------- */
h1, h2, h3 { font-weight: 500; line-height: 1.08; margin: 0 0 0.5em; letter-spacing: -0.005em; }
h1 { font-size: clamp(40px, 6.2vw, 84px); }
h2 { font-size: clamp(32px, 4.4vw, 56px); }
h3 { font-size: clamp(22px, 2.4vw, 30px); }
p { margin: 0 0 1em; max-width: 64ch; }
.lede { font-size: clamp(21px, 2vw, 26px); color: var(--bone-2); max-width: 56ch; }
.muted { color: var(--bone-3); }
.caption {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--bronze);
  margin: 0 0 28px;
}
.caption::before { content: "— "; color: var(--bronze-2); }
code, pre { font-family: var(--mono); }
code { font-size: 0.84em; background: var(--ink-3); padding: 2px 6px; border-radius: 3px; color: var(--bone-2); }
pre {
  background: var(--ink-2); border: 1px solid var(--rule); border-radius: 6px;
  padding: 20px 22px; overflow-x: auto; font-size: 13.5px; line-height: 1.6; color: var(--bone-2);
}
pre code { background: none; padding: 0; font-size: inherit; color: inherit; }
pre .c { color: var(--bone-3); }
pre .k { color: var(--bronze); }
pre .s { color: #b9c9a3; }

/* ---------- sections ---------- */
section { padding: clamp(72px, 10vw, 140px) 0; border-top: 1px solid var(--rule); scroll-margin-top: 72px; }
section:first-of-type { border-top: 0; }
.grid { display: grid; gap: clamp(28px, 4vw, 56px); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

/* hero */
.hero { padding-top: clamp(80px, 12vw, 160px); padding-bottom: clamp(72px, 10vw, 140px); }
.hero h1 { max-width: 16ch; }
.hero .founding { font-family: var(--mono); font-size: 13.5px; letter-spacing: 0.08em; color: var(--bone-2); margin: 36px 0 0; max-width: none; }
.hero .founding a { text-decoration: none; color: var(--bronze); }
.seal {
  margin-top: 56px; padding-top: 28px; border-top: 1px solid var(--rule);
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.32em; color: var(--bronze-2);
}

/* name */
dl.name { display: grid; grid-template-columns: max-content 1fr; gap: 14px 32px; margin: 0; }
dl.name dt { font-weight: 600; color: var(--bronze); font-size: 22px; letter-spacing: 0.02em; }
dl.name dd { margin: 0; color: var(--bone-2); }
@media (max-width: 600px) { dl.name { grid-template-columns: 1fr; gap: 4px; } dl.name dd { margin-bottom: 18px; } }

/* figures */
.figures { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 32px; margin-top: 48px; }
.figure .big { font-size: clamp(56px, 7vw, 104px); font-weight: 600; line-height: 0.95; color: var(--bone); letter-spacing: -0.02em; }
.figure .big small { font-size: 0.42em; color: var(--bronze); font-weight: 500; letter-spacing: 0; }
.figure p { margin: 14px 0 0; color: var(--bone-2); font-size: 17px; max-width: 30ch; }

/* founder */
blockquote { margin: 40px 0; padding-left: 24px; border-left: 2px solid var(--bronze-2); font-size: clamp(24px, 2.6vw, 34px); line-height: 1.25; font-style: italic; color: var(--bone); max-width: 26ch; }
blockquote footer { font-style: normal; font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.1em; color: var(--bone-3); margin-top: 16px; }
.beliefs { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 32px 40px; margin-top: 56px; }
.beliefs h3 { font-size: 23px; margin-bottom: 10px; }
.beliefs p { font-size: 17px; color: var(--bone-2); margin: 0; }
.beliefs .n { font-family: var(--mono); font-size: 12px; color: var(--bronze); letter-spacing: 0.2em; display: block; margin-bottom: 12px; }

/* service blocks */
.status {
  display: inline-block; font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.16em; text-transform: uppercase;
  border: 1px solid var(--bronze-2); color: var(--bronze); padding: 5px 10px; border-radius: 2px; margin-bottom: 22px;
}
.status.live { border-color: #5f7a4d; color: #a8c48d; }
.status.soon { border-color: var(--rule); color: var(--bone-3); }
.steps { counter-reset: step; list-style: none; padding: 0; margin: 40px 0 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 28px; }
.steps li { counter-increment: step; border-top: 1px solid var(--rule); padding-top: 18px; }
.steps li::before { content: counter(step, upper-roman); font-family: var(--mono); font-size: 12px; letter-spacing: 0.2em; color: var(--bronze); display: block; margin-bottom: 10px; }
.steps h3 { font-size: 22px; margin-bottom: 8px; }
.steps p { font-size: 17px; color: var(--bone-2); margin: 0; }

table { width: 100%; border-collapse: collapse; margin: 36px 0 0; font-size: 17px; }
th, td { text-align: left; padding: 14px 16px 14px 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--bronze); font-weight: 500; }
td:first-child { color: var(--bone); font-weight: 600; white-space: nowrap; }
td { color: var(--bone-2); }
.table-note { font-family: var(--mono); font-size: 12.5px; color: var(--bone-3); margin-top: 14px; }

ul.plain { padding-left: 1.1em; color: var(--bone-2); }
ul.plain li { margin-bottom: 8px; }

.cta-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 40px; }
.btn {
  display: inline-block; font-family: var(--mono); font-size: 13px; letter-spacing: 0.1em; text-transform: uppercase; text-decoration: none;
  padding: 14px 22px; border: 1px solid var(--bronze); color: var(--bronze); border-radius: 2px; transition: background .15s, color .15s;
}
.btn:hover { background: var(--bronze); color: var(--ink); }
.btn.solid { background: var(--bone); border-color: var(--bone); color: var(--ink); }
.btn.solid:hover { background: var(--bronze); border-color: var(--bronze); }

/* regions */
.regions { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; margin-top: 48px; }
.region { border: 1px solid var(--rule); border-radius: 6px; padding: 26px 26px 22px; background: var(--ink-2); }
.region .code { font-family: var(--mono); font-size: 12px; letter-spacing: 0.22em; color: var(--bronze); }
.region h3 { margin: 10px 0 8px; font-size: 28px; }
.region p { font-size: 16.5px; color: var(--bone-2); margin: 0; }
.region .state { margin-top: 18px; font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--bone-3); }

/* faq */
details { border-top: 1px solid var(--rule); padding: 22px 0; }
details:last-of-type { border-bottom: 1px solid var(--rule); }
summary { cursor: pointer; font-size: clamp(20px, 2vw, 25px); font-weight: 500; list-style: none; display: flex; justify-content: space-between; gap: 20px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; font-family: var(--mono); color: var(--bronze); flex: none; }
details[open] summary::after { content: "–"; }
details p { margin: 14px 0 0; color: var(--bone-2); font-size: 17.5px; }

/* press */
.press-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 40px; align-items: start; }
.mark-preview { border: 1px solid var(--rule); background: var(--ink-2); border-radius: 6px; padding: 32px; display: flex; align-items: center; justify-content: center; }
.mark-preview svg { width: 160px; height: 160px; }
.downloads { font-family: var(--mono); font-size: 13.5px; line-height: 2.1; }

/* contact */
.contact .email { font-size: clamp(28px, 4vw, 52px); font-weight: 500; text-decoration: none; border-bottom: 1px solid var(--bronze-2); word-break: break-all; }
.contact .email:hover { border-color: var(--bronze); }

/* footer */
footer.site { border-top: 1px solid var(--rule); padding: 40px 0 56px; font-family: var(--mono); font-size: 12.5px; color: var(--bone-3); }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 16px 40px; justify-content: space-between; align-items: baseline; }
footer.site a { color: var(--bone-2); text-decoration: none; }
footer.site a:hover { color: var(--bronze); }
footer.site .close { font-family: var(--serif); font-style: italic; font-size: 17px; color: var(--bone-2); }

/* machine section */
.machine pre { margin-top: 32px; }
.pill-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 24px; }
.pill { font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; border: 1px solid var(--rule); color: var(--bone-2); padding: 6px 10px; border-radius: 999px; }