/* =========================================================
   GROUND ZERO PROPERTY
   Brand: monochrome ink on concrete, bold condensed display
   ========================================================= */

:root {
  --ink:        #0e0e0d;
  --ink-soft:   #26251f;
  --stone:      #e7e4dd;   /* concrete background */
  --stone-2:    #ded9d0;
  --paper:      #f3f1ec;
  --line:       #cfc9bd;
  --muted:      #6f6a5f;
  --muted-2:    #928c7f;
  --brass:      #a8865b;   /* restrained warm accent */
  --white:      #ffffff;

  --maxw: 1240px;
  --gutter: clamp(20px, 5vw, 64px);

  --f-display: "Anton", "Archivo Black", Impact, sans-serif;
  --f-body: "Jost", "Helvetica Neue", Arial, sans-serif;

  --ease: cubic-bezier(.22,.61,.36,1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--f-body);
  color: var(--ink);
  background: var(--stone);
  font-weight: 300;
  line-height: 1.65;
  font-size: 17px;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Concrete grain overlay */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: .5;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix type='saturate' values='0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.28'/></svg>");
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--gutter);
  position: relative;
  z-index: 2;
}

/* ---------- Type ---------- */
.display {
  font-family: var(--f-display);
  font-weight: 400;
  line-height: .92;
  letter-spacing: .005em;
  text-transform: uppercase;
}

.eyebrow {
  font-family: var(--f-body);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: .42em;
  font-size: 12px;
  color: var(--muted);
}

.lede {
  font-size: clamp(20px, 2.4vw, 27px);
  font-weight: 300;
  line-height: 1.4;
  letter-spacing: .005em;
}

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px var(--gutter);
  transition: background .4s var(--ease), padding .4s var(--ease), box-shadow .4s var(--ease);
}
.nav.scrolled {
  background: rgba(231,228,221,.86);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 var(--line);
  padding-block: 12px;
}
.nav__brand {
  font-family: var(--f-display);
  font-size: 20px;
  letter-spacing: .04em;
  text-transform: uppercase;
  white-space: nowrap;
}
.nav__brand small {
  font-family: var(--f-body);
  font-weight: 300;
  letter-spacing: .5em;
  font-size: 9px;
  display: block;
  margin-top: 2px;
  color: var(--muted);
}
.nav__links {
  display: flex;
  gap: 34px;
  align-items: center;
}
.nav__links a {
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink-soft);
  position: relative;
  padding: 4px 0;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--ink);
  transition: width .35s var(--ease);
}
.nav__links a:hover::after { width: 100%; }
.nav__cta {
  border: 1px solid var(--ink);
  padding: 9px 18px !important;
}
.nav__cta::after { display: none; }
.nav__cta:hover { background: var(--ink); color: var(--stone); }

.nav__toggle {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
  width: 30px; height: 22px;
  position: relative;
}
.nav__toggle span {
  position: absolute; left: 0;
  width: 100%; height: 1.5px;
  background: var(--ink);
  transition: .3s var(--ease);
}
.nav__toggle span:nth-child(1){ top: 2px; }
.nav__toggle span:nth-child(2){ top: 10px; }
.nav__toggle span:nth-child(3){ top: 18px; }

/* ---------- Hero ---------- */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 120px;
  padding-bottom: 60px;
}
.hero__eyebrow { margin-bottom: 26px; }
.hero h1 {
  margin: 0;
  font-size: clamp(58px, 13.5vw, 210px);
  color: var(--ink);
}
.hero h1 .sub {
  display: block;
  font-family: var(--f-body);
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: clamp(.3em, 2vw, .95em);
  font-size: clamp(14px, 3vw, 34px);
  line-height: 1;
  margin-top: clamp(8px, 1.4vw, 20px);
  padding-left: .12em;
  color: var(--ink-soft);
}
.hero__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
  margin-top: clamp(40px, 7vw, 84px);
  border-top: 1px solid var(--line);
  padding-top: 26px;
}
.hero__tag {
  max-width: 42ch;
  font-size: clamp(17px, 1.7vw, 21px);
  font-weight: 300;
  line-height: 1.45;
}
.hero__meta {
  text-align: right;
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.9;
}

/* ---------- Section scaffolding ---------- */
section { position: relative; z-index: 2; }
.block { padding-block: clamp(78px, 12vw, 150px); }
.block--line { border-top: 1px solid var(--line); }
.block--ink {
  background: var(--ink);
  color: var(--stone);
}
.block--ink .eyebrow { color: var(--muted-2); }
.block--ink .rule { background: rgba(255,255,255,.16); }

.sec-head { margin-bottom: clamp(38px, 6vw, 64px); }
.sec-head .eyebrow { display: inline-block; margin-bottom: 20px; }
.sec-head h2 {
  margin: 0;
  font-size: clamp(38px, 6.5vw, 88px);
}

.rule { height: 1px; background: var(--line); border: 0; margin: 0; }

/* ---------- Statement ---------- */
.statement .lede { max-width: 30ch; }
.statement__grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(34px, 6vw, 90px);
  align-items: start;
}
.statement__grid p { margin: 0 0 20px; }
.statement__grid .muted { color: var(--muted); }

/* ---------- Founders ---------- */
.founders__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 6vw, 80px);
  align-items: center;
}
.founders__photo {
  position: relative;
  aspect-ratio: 4/5;
  background: var(--stone-2);
  overflow: hidden;
}
.founders__photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.02);
  transition: filter .6s var(--ease), transform 1.1s var(--ease);
}
.founders__photo:hover img { filter: grayscale(0); transform: scale(1.03); }
.founders__photo .ph {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  padding: 24px;
}
.founders__names {
  font-family: var(--f-display);
  font-size: clamp(26px, 3vw, 40px);
  text-transform: uppercase;
  line-height: 1;
  margin: 18px 0 10px;
}
.founders__role {
  font-size: 12px; letter-spacing: .28em;
  text-transform: uppercase; color: var(--muted);
  margin-bottom: 26px;
}
.founders__grid p { margin: 0 0 18px; }

/* ---------- Approach ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.block--ink .cards { border-color: rgba(255,255,255,.16); }
.card {
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: clamp(28px, 3.4vw, 46px);
  min-height: 260px;
  display: flex;
  flex-direction: column;
  transition: background .4s var(--ease);
}
.block--ink .card { border-color: rgba(255,255,255,.16); }
.card:hover { background: rgba(0,0,0,.03); }
.block--ink .card:hover { background: rgba(255,255,255,.04); }
.card__num {
  font-family: var(--f-body);
  font-size: 12px; letter-spacing: .2em;
  color: var(--muted); margin-bottom: auto;
}
.card h3 {
  font-family: var(--f-display);
  font-weight: 400;
  text-transform: uppercase;
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.02;
  margin: 34px 0 14px;
}
.card p { margin: 0; font-size: 15.5px; color: var(--muted); }
.block--ink .card p { color: var(--muted-2); }

/* ---------- Backing ---------- */
.backing__grid {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: clamp(34px, 6vw, 80px);
  align-items: center;
}
.backing__badge {
  border: 1px solid rgba(255,255,255,.28);
  padding: 40px 32px;
  text-align: center;
}
.backing__badge .k {
  font-size: 11px; letter-spacing: .32em;
  text-transform: uppercase; color: var(--muted-2);
}
.backing__badge .v {
  font-family: var(--f-display);
  font-size: clamp(30px, 4vw, 50px);
  text-transform: uppercase;
  line-height: .98;
  margin: 16px 0 4px;
}
.backing__grid p { margin: 0 0 20px; font-size: clamp(18px,2vw,22px); font-weight: 300; }
.backing__grid p:last-child { margin-bottom: 0; }

/* ---------- Partners (three-up) ---------- */
.partners {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(28px, 4vw, 56px);
}
.partner h3 {
  font-family: var(--f-display);
  font-weight: 400;
  text-transform: uppercase;
  font-size: clamp(20px, 2vw, 25px);
  margin: 0 0 8px;
}
.partner .rule { margin: 18px 0; }
.partner p { margin: 0; color: var(--muted); font-size: 15.5px; }

/* ---------- Contact / CTA ---------- */
.cta {
  text-align: center;
}
.cta h2 {
  font-family: var(--f-display);
  font-weight: 400;
  text-transform: uppercase;
  font-size: clamp(44px, 9vw, 130px);
  line-height: .92;
  margin: 0 0 30px;
}
.cta .lede { max-width: 52ch; margin: 0 auto 44px; color: var(--muted-2); }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  border: 1px solid currentColor;
  padding: 16px 30px;
  font-size: 13px;
  letter-spacing: .24em;
  text-transform: uppercase;
  transition: .35s var(--ease);
}
.btn:hover { background: var(--stone); color: var(--ink); }
.block:not(.block--ink) .btn:hover { background: var(--ink); color: var(--stone); }
.btn .arw { transition: transform .35s var(--ease); }
.btn:hover .arw { transform: translateX(5px); }

.cta__mail {
  margin-top: 34px;
  font-size: 13px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted-2);
}
.cta__mail a { border-bottom: 1px solid rgba(255,255,255,.3); padding-bottom: 2px; }

/* ---------- Footer ---------- */
.footer {
  padding-block: 46px;
  border-top: 1px solid var(--line);
}
.footer__row {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: center;
  justify-content: space-between;
}
.footer__brand {
  font-family: var(--f-display);
  font-size: 18px; letter-spacing: .04em; text-transform: uppercase;
}
.footer small { color: var(--muted); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; }

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 1s var(--ease), transform 1s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .nav__links {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(78vw, 340px);
    background: var(--ink);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 8px;
    padding: 40px;
    transform: translateX(100%);
    transition: transform .45s var(--ease);
  }
  .nav__links.open { transform: none; }
  .nav__links a { color: var(--stone); font-size: 15px; padding: 12px 0; }
  .nav__links a::after { background: var(--stone); }
  .nav__cta { border-color: var(--stone); }
  .nav__toggle { display: block; z-index: 60; }
  .statement__grid,
  .founders__grid,
  .backing__grid { grid-template-columns: 1fr; }
  .founders__photo { max-width: 460px; }
  .cards { grid-template-columns: 1fr; }
  .partners { grid-template-columns: 1fr; gap: 34px; }
}
@media (max-width: 520px) {
  .hero__meta { text-align: left; }
  .backing__badge { padding: 30px 22px; }
}