:root {
  --bg: #0c1210;
  --bg-2: #111a15;
  --ink: #e8efe9;
  --soft: #9aada0;
  --line: #26352c;
  --accent: #d6ff5f;
  --red: #e05a3a;
  --green: #7fd39b;
  --display: "Space Grotesk", system-ui, sans-serif;
  --sans: "IBM Plex Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --wrap: 1240px;
  --gutter: clamp(1.2rem, 4vw, 3.5rem);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--bg);
  padding: 0.75rem 1rem;
  z-index: 100;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.wrap {
  width: min(var(--wrap), 100% - (var(--gutter) * 2));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(12, 18, 16, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  min-height: 4.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  text-decoration: none;
  white-space: nowrap;
}

.brand svg {
  width: 1.8rem;
  height: 1.8rem;
}

.header-inner nav {
  display: flex;
  gap: clamp(1rem, 2vw, 1.8rem);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.header-inner nav a {
  color: var(--soft);
  text-decoration: none;
}

.header-inner nav a:hover {
  color: var(--accent);
}

.hero {
  padding: clamp(3.5rem, 8vw, 7rem) 0 clamp(4rem, 9vw, 7rem);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 82% 8%, rgba(214, 255, 95, 0.09), transparent 38%),
    radial-gradient(circle at 8% 92%, rgba(224, 90, 58, 0.07), transparent 40%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}

.eyebrow,
.label,
.card-tag,
.contact-label,
.role,
.stat-label,
.facts dt,
.board-head,
.board-source,
.mini-ladder span,
.process span,
.roadmap span {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 1.5rem;
  color: var(--accent);
}

.dot {
  width: 0.5rem;
  height: 0.5rem;
  background: var(--accent);
  border-radius: 50%;
}

h1,
h2,
h3 {
  font-family: var(--display);
  font-weight: 500;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

h1 {
  margin: 0;
  font-size: clamp(2.8rem, 6vw, 5.4rem);
  line-height: 0.98;
}

h1 em {
  font-style: normal;
  color: var(--accent);
}

h2 {
  margin: 0 0 1.6rem;
  font-size: clamp(2.1rem, 4.4vw, 3.7rem);
  line-height: 1.04;
}

h3 {
  margin: 0 0 0.4rem;
  font-size: 1.3rem;
  line-height: 1.2;
}

.lead {
  margin: 1.7rem 0 0;
  max-width: 42ch;
  font-size: clamp(1.1rem, 1.6vw, 1.28rem);
  line-height: 1.5;
  color: var(--soft);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2.1rem;
}

.btn {
  display: inline-flex;
  padding: 0.9rem 1.25rem;
  background: var(--accent);
  color: var(--bg);
  border: 1px solid var(--accent);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
}

.btn:hover {
  background: transparent;
  color: var(--accent);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hero-note {
  margin: 1.4rem 0 0;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.03em;
  color: var(--soft);
}

.board {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(214, 255, 95, 0.04), transparent 40%), var(--bg-2);
  padding: clamp(1.2rem, 2.5vw, 1.8rem);
}

.board-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.8rem;
  color: var(--soft);
  border-bottom: 1px solid var(--line);
}

.board-status {
  color: var(--accent);
}

.board-head-second {
  margin-top: 1.8rem;
}

.boundary-grid {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 4px;
  margin: 1.1rem 0 0.7rem;
}

.b {
  height: 2.4rem;
  background: var(--line);
}

.b-red {
  background: var(--red);
}

.b-green {
  background: var(--green);
}

.board-source {
  margin: 0;
  color: var(--soft);
  font-size: 0.6rem;
}

.mini-ladder {
  list-style: none;
  margin: 1rem 0 0.7rem;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.mini-ladder li {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr) auto;
  gap: 0.8rem;
  align-items: center;
  padding: 0.55rem 0.7rem;
  background: var(--bg-2);
}

.mini-ladder span {
  color: var(--red);
}

.mini-ladder b {
  font-weight: 400;
  font-size: 0.85rem;
}

.mini-ladder i {
  font-style: normal;
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--soft);
}

.mini-limit {
  background: var(--accent) !important;
  color: var(--bg);
}

.mini-limit span,
.mini-limit i {
  color: var(--bg);
}

.section {
  padding: clamp(4rem, 9vw, 7rem) 0;
  border-bottom: 1px solid var(--line);
}

.section-line {
  background: var(--bg-2);
}

.section-grid {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: start;
}

.label {
  margin: 0.55rem 0 0;
  color: var(--soft);
  position: sticky;
  top: 6rem;
}

.section-grid > .label,
.section-head > .label {
  color: var(--accent);
}

.section-grid > div,
.section-head {
  max-width: 82ch;
}

.section-grid p,
.section-head p {
  color: var(--soft);
}

.section-grid .large,
.section-head .large {
  color: var(--ink);
  font-size: clamp(1.08rem, 1.5vw, 1.22rem);
  line-height: 1.62;
  max-width: 64ch;
}

blockquote {
  margin: 2.2rem 0;
  padding-left: 1.4rem;
  border-left: 3px solid var(--accent);
  font-family: var(--display);
  font-size: clamp(1.45rem, 3vw, 2.2rem);
  line-height: 1.18;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.formula {
  grid-column: 2;
  max-width: 34rem;
  margin-top: 1rem;
  padding: 1.4rem;
  border: 1px solid var(--line);
  background: var(--bg-2);
}

.formula-label {
  margin: 0 0 0.5rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--soft);
}

.formula-line {
  margin: 0;
  font-family: var(--display);
  font-size: 1.35rem;
}

.formula-line span {
  color: var(--red);
  padding: 0 0.3rem;
}

.formula-eq {
  margin: 0.2rem 0 1.5rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--soft);
}

.formula-limit {
  color: var(--accent);
}

.formula-note {
  margin: 1.2rem 0 0;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  color: var(--soft);
}

.section-head {
  max-width: 82ch;
  margin-bottom: 2.5rem;
}

.ladder {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.ladder li {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.3rem;
  border: 1px solid var(--line);
  background: var(--bg);
  min-height: 17rem;
}

.ladder-num {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--red);
}

.ladder h3 {
  font-size: 1.55rem;
}

.ladder p {
  margin: 0 0 0.7rem;
  font-size: 0.85rem;
  color: var(--soft);
}

.ladder q {
  margin-top: auto;
  font-family: var(--display);
  font-size: 1rem;
  line-height: 1.35;
  color: var(--ink);
}

.ladder li.ladder-limit {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

.ladder li.ladder-limit .ladder-num,
.ladder li.ladder-limit p,
.ladder li.ladder-limit q {
  color: var(--bg);
}

.ladder li.ladder-limit q {
  font-weight: 500;
}

.note {
  margin: 1.5rem 0 0;
  font-family: var(--mono);
  font-size: 0.68rem;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--soft);
}

.process {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 2rem 0 2.5rem;
  border: 1px solid var(--line);
}

.process span {
  flex: 1;
  min-width: 7rem;
  padding: 0.9rem 1rem;
  color: var(--soft);
  border-right: 1px solid var(--line);
}

.process span:last-child {
  border-right: 0;
  color: var(--accent);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.cards article {
  padding: 1.3rem;
  border-top: 2px solid var(--accent);
  background: var(--bg-2);
}

.card-tag {
  margin: 0 0 1.2rem;
  color: var(--accent);
}

.cards h3 {
  font-size: 1.2rem;
}

.cards p:last-child {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.55;
  color: var(--soft);
}

.facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 2rem 0 0;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
}

.facts dt {
  color: var(--accent);
  margin-bottom: 0.4rem;
}

.facts dd {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.55;
  color: var(--soft);
}

.evidence {
  background: var(--accent);
  color: var(--bg);
  border-bottom: 0;
}

.evidence .label,
.evidence .section-head p {
  color: rgba(12, 18, 16, 0.72);
}

.evidence .section-head .large {
  color: var(--bg);
}

.evidence h2 {
  color: var(--bg);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 2.5rem 0 2rem;
  border-top: 1px solid rgba(12, 18, 16, 0.24);
}

.stats > div {
  padding-top: 1.3rem;
  border-right: 1px solid rgba(12, 18, 16, 0.18);
}

.stats > div:last-child {
  border-right: 0;
}

.stat-num {
  margin: 0 0 0.6rem;
  font-family: var(--display);
  font-size: clamp(2.8rem, 5.4vw, 4.6rem);
  line-height: 0.9;
  letter-spacing: -0.05em;
}

.stat-label {
  margin: 0;
  max-width: 17ch;
  line-height: 1.5;
  color: rgba(12, 18, 16, 0.7);
}

.finding {
  display: grid;
  grid-template-columns: 7rem minmax(0, 1fr);
  gap: 1.5rem;
  align-items: center;
  padding: 1.4rem 0;
  border-top: 1px solid rgba(12, 18, 16, 0.24);
  border-bottom: 1px solid rgba(12, 18, 16, 0.24);
}

.finding-num {
  margin: 0;
  font-family: var(--display);
  font-size: 4.4rem;
  line-height: 0.85;
}

.finding p:last-child {
  margin: 0;
  max-width: 52ch;
  line-height: 1.55;
  color: rgba(12, 18, 16, 0.82);
}

.caveat {
  margin: 1.8rem 0 0;
  font-family: var(--mono);
  font-size: 0.66rem;
  line-height: 1.6;
  color: rgba(12, 18, 16, 0.7);
}

.roadmap {
  list-style: none;
  margin: 2rem 0 1.5rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.roadmap li {
  padding-top: 1rem;
  border-top: 2px solid var(--line);
}

.roadmap span {
  display: block;
  margin-bottom: 0.9rem;
  color: var(--accent);
}

.roadmap h3 {
  font-size: 1.15rem;
}

.roadmap p {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.55;
  color: var(--soft);
}

.team {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.team li {
  padding: 1.3rem;
  border: 1px solid var(--line);
  background: var(--bg);
}

.team .role {
  margin: 0 0 0.7rem;
  color: var(--accent);
  font-size: 0.62rem;
}

.team p:last-child {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.55;
  color: var(--soft);
}

.contact {
  padding: clamp(4rem, 9vw, 7rem) 0;
  background: var(--bg-2);
  border-top: 1px solid var(--line);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: end;
}

.contact h2 {
  font-size: clamp(2.6rem, 6vw, 5rem);
  color: var(--accent);
  margin-bottom: 1.3rem;
}

.contact .lead {
  color: var(--soft);
}

.contact-card {
  padding: 1.6rem;
  border: 1px solid var(--line);
  background: var(--bg);
}

.contact-label {
  margin: 0 0 0.8rem;
  color: var(--soft);
}

.contact-email {
  display: inline-block;
  margin-bottom: 1.3rem;
  font-family: var(--display);
  font-size: clamp(1.1rem, 2.3vw, 1.55rem);
  color: var(--accent);
  text-decoration-color: var(--accent);
}

.contact-meta {
  margin: 0 0 1.4rem;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--soft);
}

.contact-funder {
  margin: 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.76rem;
  line-height: 1.55;
  color: var(--soft);
}

.site-footer {
  padding: 2.2rem 0;
  background: var(--bg);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
}

.footer-brand {
  margin: 0;
  font-family: var(--display);
  font-size: 0.95rem;
}

.footer-inner nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.footer-inner nav a {
  color: var(--soft);
  text-decoration: none;
}

.footer-inner nav a:hover {
  color: var(--accent);
}

.footer-meta {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--soft);
}

@media (max-width: 1040px) {
  .hero-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .board {
    max-width: 32rem;
  }

  .section-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .label {
    position: static;
  }

  .formula {
    grid-column: 1;
  }

  .ladder,
  .cards,
  .roadmap,
  .stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stats > div {
    border-right: 0;
  }

  .header-inner nav {
    display: none;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 1rem;
  }

  .ladder,
  .cards,
  .roadmap,
  .team,
  .stats,
  .facts {
    grid-template-columns: 1fr;
  }

  .ladder li {
    min-height: 0;
  }

  .finding {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  .process span {
    flex-basis: 50%;
    border-bottom: 1px solid var(--line);
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

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