:root{
  --paper: #f6f1e6;
  --paper-2: #efe6d6;
  --ink: #171513;
  --muted: #4a443e;
  --line: rgba(23,21,19,.18);
  --shadow: rgba(23,21,19,.14);
  --accent: #7b2f2f; /* archival red */
  --accent-2: #0d3b4c; /* deep teal */
  --radius: 14px;
  --radius-sm: 10px;
  --max: 1120px;
  --pad: clamp(18px, 3vw, 28px);
  --serif: "Fraunces", ui-serif, Georgia, serif;
  --sans: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  color:var(--ink);
  font-family: var(--sans);
  background:
    radial-gradient(1100px 700px at 15% 10%, rgba(123,47,47,.10), transparent 60%),
    radial-gradient(900px 600px at 85% 30%, rgba(13,59,76,.10), transparent 55%),
    linear-gradient(180deg, var(--paper), var(--paper-2));
}

/* subtle paper grain (pure CSS; no external assets) */
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg, rgba(23,21,19,.020) 0, rgba(23,21,19,.020) 1px, transparent 1px, transparent 3px),
    repeating-linear-gradient(90deg, rgba(23,21,19,.010) 0, rgba(23,21,19,.010) 1px, transparent 1px, transparent 4px);
  mix-blend-mode:multiply;
  opacity:.55;
}

a{ color:inherit; }
a:hover{ color:var(--accent); }

.skip-link{
  position:absolute;
  left:-999px;
  top:0;
  padding:10px 12px;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:10px;
  z-index:999;
}
.skip-link:focus{ left:12px; top:12px; }

.shell{
  min-height:100%;
  display:flex;
  flex-direction:column;
}

.topbar{
  position:sticky;
  top:0;
  z-index:50;
  backdrop-filter: blur(10px);
  background: rgba(246,241,230,.72);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  max-width:var(--max);
  margin:0 auto;
  padding: 14px var(--pad);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}

.brand{
  display:flex;
  align-items:baseline;
  gap:12px;
  text-decoration:none;
}
.brand-mark{
  width:14px;
  height:14px;
  border-radius:4px;
  background:
    linear-gradient(145deg, rgba(123,47,47,.92), rgba(123,47,47,.55));
  box-shadow: 0 8px 18px rgba(123,47,47,.22);
}
.brand-title{
  font-family:var(--serif);
  font-weight: 650;
  letter-spacing: -0.02em;
  font-size: 18px;
  line-height:1;
}
.brand-sub{
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  opacity:.9;
}

nav{
  display:flex;
  gap:10px;
  align-items:center;
  flex-wrap:wrap;
}
.navlink{
  text-decoration:none;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing:.02em;
  text-transform: uppercase;
  padding: 10px 12px;
  border-radius: 999px;
  border:1px solid transparent;
  color: rgba(23,21,19,.85);
}
.navlink:hover{
  border-color: rgba(123,47,47,.28);
  background: rgba(123,47,47,.05);
}
body[data-page="home"] a[href="/"],
body[data-page="product"] a[href="/product/"],
body[data-page="founder"] a[href="/founder/"],
body[data-page="investor"] a[href="/investor/"],
body[data-page="contact"] a[href="/contact/"]{
  border-color: rgba(23,21,19,.22);
  background: rgba(23,21,19,.05);
}

main{
  flex:1;
  width:100%;
  max-width:var(--max);
  margin:0 auto;
  padding: 34px var(--pad) 56px;
}

.hero{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 26px;
  align-items:start;
}
@media (max-width: 900px){
  .hero{ grid-template-columns: 1fr; }
}

.kicker{
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing:.06em;
  font-size: 12px;
  color: rgba(23,21,19,.70);
}

h1{
  margin: 10px 0 12px;
  font-family: var(--serif);
  font-weight: 760;
  letter-spacing: -0.035em;
  font-size: clamp(38px, 5vw, 56px);
  line-height:1.02;
}
h2{
  margin: 0 0 10px;
  font-family: var(--serif);
  letter-spacing: -0.02em;
  font-weight: 690;
  font-size: clamp(22px, 2.4vw, 28px);
}
p{
  margin: 0 0 12px;
  color: rgba(23,21,19,.86);
  font-size: 16px;
  line-height:1.55;
}
.lede{
  font-size: 18px;
  line-height: 1.6;
  color: rgba(23,21,19,.83);
  max-width: 68ch;
}

.card{
  border:1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.28);
  box-shadow:
    0 18px 50px rgba(23,21,19,.07),
    0 2px 0 rgba(255,255,255,.7) inset;
  overflow:hidden;
}
.card-inner{ padding: 20px; }

.stamp{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding: 16px 18px;
  background:
    linear-gradient(180deg, rgba(123,47,47,.10), rgba(123,47,47,.04));
  border-bottom:1px solid rgba(123,47,47,.18);
}
.stamp-title{
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing:.06em;
  font-size: 12px;
}
.stamp-seal{
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 2px dashed rgba(123,47,47,.58);
  position: relative;
  transform: rotate(-8deg);
}
.stamp-seal::after{
  content:"MT";
  position:absolute;
  inset:0;
  display:grid;
  place-items:center;
  font-family: var(--serif);
  font-weight: 750;
  color: rgba(123,47,47,.78);
  letter-spacing:-.04em;
}

.cta-row{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin-top: 18px;
}
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding: 11px 14px;
  border-radius: 999px;
  border: 1px solid rgba(23,21,19,.22);
  background: rgba(246,241,230,.65);
  text-decoration:none;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing:.04em;
  text-transform: uppercase;
  box-shadow: 0 10px 25px rgba(23,21,19,.07);
}
.btn:hover{
  border-color: rgba(123,47,47,.35);
  background: rgba(123,47,47,.06);
}
.btn.primary{
  border-color: rgba(123,47,47,.40);
  background:
    linear-gradient(180deg, rgba(123,47,47,.14), rgba(123,47,47,.06));
}
.btn .arrow{
  font-size: 14px;
  transform: translateY(-.5px);
}

.grid{
  display:grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
  margin-top: 18px;
}
.span-7{ grid-column: span 7; }
.span-5{ grid-column: span 5; }
.span-6{ grid-column: span 6; }
.span-12{ grid-column: span 12; }
@media (max-width: 900px){
  .span-7,.span-5,.span-6,.span-12{ grid-column: span 12; }
}

.list{
  margin: 10px 0 0;
  padding-left: 18px;
  color: rgba(23,21,19,.84);
}
.list li{ margin: 8px 0; }
.meta{
  font-family: var(--mono);
  font-size: 12px;
  color: rgba(23,21,19,.70);
}
.hr{
  height:1px;
  background: var(--line);
  margin: 20px 0;
}
.footer{
  border-top:1px solid var(--line);
  padding: 18px var(--pad);
  background: rgba(246,241,230,.60);
}
.footer-inner{
  max-width: var(--max);
  margin: 0 auto;
  display:flex;
  gap: 12px;
  justify-content: space-between;
  flex-wrap:wrap;
  align-items:center;
}
.footer small{
  font-family: var(--mono);
  color: rgba(23,21,19,.65);
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding: 8px 10px;
  border-radius: 999px;
  border:1px solid rgba(23,21,19,.20);
  background: rgba(255,255,255,.26);
  font-family: var(--mono);
  font-size: 12px;
  text-decoration:none;
}
.pill:hover{
  border-color: rgba(123,47,47,.35);
  background: rgba(123,47,47,.06);
}

@media (prefers-reduced-motion: no-preference){
  .reveal{
    animation: reveal .55s ease-out both;
  }
  @keyframes reveal{
    from{ opacity:0; transform: translateY(6px); }
    to{ opacity:1; transform: translateY(0); }
  }
}