/* MultiCloud Decentralized Applications Inc.
   Design tokens + layout. Static, no dependencies, no external fonts. */

:root {
  --paper: #f8f6f0;
  --paper-2: #f0ece1;
  --ink: #16150f;
  --ink-2: #3a382e;
  --muted: #6d6858;
  --rule: #ddd7c6;
  --pine: #1f5d4c;
  --pine-deep: #143f34;
  --amber: #a86a1e;

  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;

  --wrap: 1180px;
  --s1: 0.5rem; --s2: 1rem; --s3: 1.5rem; --s4: 2rem;
  --s5: 3rem; --s6: 4.5rem; --s7: 7rem; --s8: 10rem;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { font-family: var(--serif); font-weight: 500; letter-spacing: -0.015em; margin: 0; }
h1 { font-size: clamp(2.6rem, 5.4vw, 4.6rem); line-height: 1.02; }
h2 { font-size: clamp(1.9rem, 3.1vw, 2.9rem); line-height: 1.1; }
h3 { font-size: clamp(1.25rem, 1.9vw, 1.6rem); line-height: 1.2; }
p { margin: 0 0 1.1em; color: var(--ink-2); }
p.lede { font-size: clamp(1.12rem, 1.55vw, 1.35rem); line-height: 1.5; color: var(--ink-2); }
a { color: var(--pine); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--pine-deep); }
strong { font-weight: 600; color: var(--ink); }

.wrap { width: min(100% - 2.5rem, var(--wrap)); margin-inline: auto; }

.label {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--muted);
}

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--rule);
}
.site-header .wrap {
  display: flex; align-items: center; gap: var(--s4);
  min-height: 68px;
}
.brand { display: flex; align-items: center; gap: 0.65rem; text-decoration: none; color: var(--ink); margin-right: auto; }
.brand svg { display: block; }
.brand-text { font-family: var(--serif); font-size: 1.18rem; letter-spacing: -0.01em; }
.brand-text span { color: var(--muted); font-size: 0.82em; }

.nav { display: flex; align-items: center; gap: var(--s3); }
.nav a { color: var(--ink-2); text-decoration: none; font-size: 0.94rem; }
.nav a:hover { color: var(--pine); }
.nav a[aria-current="page"] { color: var(--ink); border-bottom: 1.5px solid var(--pine); padding-bottom: 2px; }
.nav a.btn { color: var(--paper); }
.nav a.btn:hover { color: #fff; }

.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: var(--ink); color: var(--paper);
  padding: 0.72rem 1.15rem; border-radius: 2px;
  text-decoration: none; font-size: 0.92rem; font-weight: 500;
  border: 1px solid var(--ink); transition: background .16s ease, color .16s ease;
  min-height: 44px;
}
.btn:hover { background: var(--pine-deep); border-color: var(--pine-deep); color: #fff; }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn.ghost:hover { background: var(--paper-2); color: var(--ink); border-color: var(--ink-2); }

.menu-toggle { display: none; }

/* ---------- hero ---------- */
.hero { padding: var(--s7) 0 var(--s6); border-bottom: 1px solid var(--rule); }
.hero .wrap { display: grid; grid-template-columns: 1.35fr 0.9fr; gap: var(--s6); align-items: end; }
.hero h1 { max-width: 17ch; }
.hero .lede { max-width: 46ch; margin-top: var(--s3); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: var(--s4); }

.factlist { border-top: 1px solid var(--rule); padding-top: var(--s3); }
.factlist dl { display: grid; grid-template-columns: 1fr; gap: var(--s3); margin: 0; }
.factlist dt { font-family: var(--mono); font-size: 0.7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.factlist dd { margin: .2rem 0 0; font-size: 0.98rem; color: var(--ink-2); }

/* ---------- sections ---------- */
section { padding: var(--s6) 0; }
.section-head { display: grid; grid-template-columns: 0.42fr 1fr; gap: var(--s4); align-items: start; margin-bottom: var(--s5); }
.section-head .label { padding-top: .55rem; }

/* ---------- diagram band ---------- */
.diagram-band { background: var(--paper-2); border-block: 1px solid var(--rule); }
.diagram { display: grid; grid-template-columns: 1fr 1.05fr; gap: var(--s6); align-items: center; }
.diagram figure { margin: 0; }
.diagram figcaption { font-size: 0.86rem; color: var(--muted); margin-top: var(--s2); }
.diagram svg { width: 100%; height: auto; display: block; }
.d-box { fill: var(--paper); stroke: var(--rule); }
.d-box-accent { fill: var(--paper); stroke: var(--pine); }
.d-line { stroke: var(--muted); stroke-width: 1.2; fill: none; }
.d-text { font-family: var(--mono); font-size: 10.5px; fill: var(--ink-2); letter-spacing: .04em; }
.d-text-sm { font-family: var(--mono); font-size: 9px; fill: var(--muted); letter-spacing: .08em; }

/* ---------- products ---------- */
.product-row {
  display: grid; grid-template-columns: 0.34fr 1fr 0.7fr; gap: var(--s5);
  padding: var(--s5) 0; border-top: 1px solid var(--rule); align-items: start;
}
.product-row:last-of-type { border-bottom: 1px solid var(--rule); }
.product-mark {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--muted); padding-top: .5rem;
}
.product-row h3 { margin-bottom: .5rem; }
.product-row .meta { font-family: var(--mono); font-size: 0.78rem; color: var(--muted); }
.product-row .meta li { list-style: none; padding: .3rem 0; border-top: 1px dotted var(--rule); }
.product-row .meta ul { margin: 0; padding: 0; }

/* ---------- capability list ---------- */
.capabilities { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s5); }
.cap { padding-top: var(--s3); border-top: 2px solid var(--ink); }
.cap .num { font-family: var(--mono); font-size: .72rem; color: var(--muted); letter-spacing: .1em; }
.cap h3 { font-size: 1.22rem; margin: .5rem 0 .55rem; }
.cap p { font-size: 0.97rem; margin-bottom: 0; }

/* ---------- founder ---------- */
.founder { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: var(--s6); align-items: start; }
.portrait {
  width: 100%; max-width: 360px; aspect-ratio: 1; object-fit: cover;
  border: 1px solid var(--rule); filter: grayscale(1) contrast(1.02);
  display: block;
}
.portrait span { font-family: var(--mono); font-size: .72rem; color: var(--muted); letter-spacing: .1em; text-transform: uppercase; }
.quote { font-family: var(--serif); font-size: clamp(1.3rem, 2vw, 1.7rem); line-height: 1.35; color: var(--ink); margin: 0 0 var(--s3); }
.sig { font-size: .92rem; color: var(--muted); }
.sig strong { color: var(--ink); }

/* ---------- CTA ---------- */
.cta { background: var(--ink); color: var(--paper); padding: var(--s6) 0; }
.cta h2 { color: var(--paper); max-width: 20ch; }
.cta p { color: #c9c4b4; max-width: 48ch; }
.cta .btn { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.cta .btn:hover { background: var(--pine); color: #fff; border-color: var(--pine); }
.cta .wrap { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: var(--s6); align-items: center; }
.cta-actions { display: flex; flex-wrap: wrap; gap: .7rem; justify-content: flex-end; }

/* ---------- footer ---------- */
.site-footer { padding: var(--s5) 0; background: var(--paper-2); border-top: 1px solid var(--rule); }
.site-footer .wrap { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: var(--s5); font-size: .9rem; }
.site-footer .label { margin-bottom: .6rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { padding: .18rem 0; }
.site-footer a { color: var(--ink-2); text-decoration: none; }
.site-footer a:hover { color: var(--pine); }
.legal { margin-top: var(--s4); font-size: .8rem; color: var(--muted); }

/* ---------- inner pages ---------- */
.page-head { padding: var(--s6) 0 var(--s5); border-bottom: 1px solid var(--rule); }
.page-head h1 { max-width: 22ch; }
.page-head .lede { margin-top: var(--s3); max-width: 58ch; }
.prose { max-width: 68ch; }
.prose h2 { margin: var(--s5) 0 var(--s2); font-size: clamp(1.5rem, 2.3vw, 2rem); }
.prose h3 { margin: var(--s4) 0 var(--s1); }
.prose ul { padding-left: 1.1rem; color: var(--ink-2); }
.prose li { margin-bottom: .45rem; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s6); }
.card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--s4); }
.card { border: 1px solid var(--rule); padding: var(--s4); background: var(--paper); }
.card h3 { margin-bottom: .5rem; }
.card p:last-child { margin-bottom: 0; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s6); }
.contact-list { list-style: none; padding: 0; margin: var(--s3) 0 0; }
.contact-list li { padding: var(--s2) 0; border-top: 1px solid var(--rule); display: flex; justify-content: space-between; gap: var(--s3); }
.contact-list .label { padding-top: .2rem; }

form { display: grid; gap: var(--s3); }
.field { display: grid; gap: .4rem; }
.field label { font-family: var(--mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.field input, .field textarea {
  font: inherit; padding: .75rem .8rem; border: 1px solid var(--rule);
  background: #fff; border-radius: 2px; color: var(--ink); min-height: 44px;
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus, .field textarea:focus { outline: 2px solid var(--pine); outline-offset: 1px; border-color: var(--pine); }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .hero .wrap, .diagram, .founder, .cta .wrap, .split, .contact-grid, .card-grid { grid-template-columns: 1fr; }
  .section-head { grid-template-columns: 1fr; gap: var(--s2); }
  .product-row { grid-template-columns: 1fr; gap: var(--s3); }
  .capabilities { grid-template-columns: 1fr; gap: var(--s4); }
  .site-footer .wrap { grid-template-columns: 1fr; }
  .cta-actions { justify-content: flex-start; }
  .nav { display: none; }
  .nav.open { display: flex; position: absolute; top: 68px; left: 0; right: 0; flex-direction: column;
    background: var(--paper); border-bottom: 1px solid var(--rule); padding: var(--s3) 1.25rem; gap: var(--s2); }
  .menu-toggle { display: inline-flex; background: none; border: 1px solid var(--rule); border-radius: 2px;
    min-height: 44px; min-width: 44px; align-items: center; justify-content: center; font-family: var(--mono);
    font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); cursor: pointer; }
  section { padding: var(--s5) 0; }
  .hero { padding: var(--s6) 0 var(--s5); }
}

/* CTA: keep the secondary action legible on the dark band */
.cta .btn.ghost { background: transparent; color: var(--paper); border-color: #55524a; }
.cta .btn.ghost:hover { background: #24231c; color: #fff; border-color: #6d6858; }