:root {
  color-scheme: dark;
  --ink: #eef6f3;
  --muted: #b6c6c7;
  --quiet: #7f9496;
  --bg: #071114;
  --panel: rgba(8, 23, 27, 0.72);
  --panel-strong: #0e2227;
  --line: rgba(197, 230, 226, 0.18);
  --teal: #39d2c0;
  --cyan: #7bdff2;
  --coral: #ff8a70;
  --gold: #e1c66b;
  --white: #ffffff;
  --radius: 8px;
  --max: 1180px;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 18%, rgba(57, 210, 192, 0.13), transparent 28rem),
    linear-gradient(180deg, #071114 0%, #0a181b 43%, #f5f1e8 43%, #f5f1e8 100%);
  color: var(--ink);
}

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 3rem);
  background: rgba(7, 17, 20, 0.44);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(18px);
  transition: background 180ms ease, border-color 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(7, 17, 20, 0.86);
  border-color: var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  position: relative;
  width: 2rem;
  aspect-ratio: 1;
  border: 2px solid var(--teal);
  border-radius: 50%;
  box-shadow: inset 0 0 0 0.35rem rgba(57, 210, 192, 0.16), 0 0 22px rgba(57, 210, 192, 0.35);
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 0.55rem;
  border-radius: 50%;
  background: var(--coral);
}

nav {
  display: flex;
  gap: clamp(0.7rem, 2vw, 1.8rem);
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
}

nav a:hover,
nav a:focus-visible {
  color: var(--white);
}

.hero {
  position: relative;
  min-height: 92svh;
  overflow: hidden;
  display: grid;
  align-items: end;
  padding: 7rem clamp(1.1rem, 5vw, 4rem) 3.5rem;
}

.hero-image,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
  object-position: 62% center;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(7, 17, 20, 0.96) 0%, rgba(7, 17, 20, 0.74) 33%, rgba(7, 17, 20, 0.14) 68%),
    linear-gradient(0deg, rgba(7, 17, 20, 0.82) 0%, transparent 38%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--teal);
  font-size: 0.77rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: "Source Serif 4", Georgia, serif;
  letter-spacing: 0;
}

h1 {
  max-width: 10ch;
  margin-bottom: 1.2rem;
  font-size: clamp(3.4rem, 7vw, 7.5rem);
  line-height: 0.88;
}

h2 {
  color: var(--ink);
  font-size: clamp(2.15rem, 4vw, 4.6rem);
  line-height: 0.98;
}

h3 {
  font-size: 1.18rem;
  margin-bottom: 0.8rem;
}

.hero-copy {
  max-width: 680px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.55;
}

.hero-actions,
.contact {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.85rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-weight: 800;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button.primary {
  background: var(--teal);
  color: #051012;
  border-color: var(--teal);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
}

.hero-panel {
  position: relative;
  z-index: 1;
  width: min(100%, 720px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 3rem;
  background: var(--line);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero-panel > div {
  min-height: 150px;
  padding: 1.3rem;
  background: var(--panel);
  backdrop-filter: blur(20px);
}

.metric {
  display: block;
  margin-bottom: 0.55rem;
  color: var(--gold);
  font-size: clamp(1.7rem, 3.2vw, 3rem);
  font-weight: 800;
}

.hero-panel p,
.pillar p,
.evidence-card p,
.timeline p,
.contact p,
.intro p,
footer p {
  color: var(--muted);
  line-height: 1.65;
}

.band {
  background: #0a181b;
}

section:not(.hero) {
  padding: clamp(4.5rem, 8vw, 8rem) clamp(1.1rem, 5vw, 4rem);
}

.section-grid,
.section-heading,
.pillar-grid,
.evidence-grid,
.timeline,
.contact,
footer {
  width: min(100%, var(--max));
  margin-inline: auto;
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1fr);
  gap: clamp(2rem, 7vw, 7rem);
  align-items: start;
}

.intro p {
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.section-heading {
  max-width: var(--max);
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
}

.platform,
.roadmap {
  background: #f5f1e8;
  color: #132124;
}

.platform h2,
.roadmap h2,
.contact h2 {
  color: #132124;
}

.platform .eyebrow,
.roadmap .eyebrow,
.contact .eyebrow {
  color: #0b8179;
}

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

.pillar,
.evidence-card {
  min-height: 260px;
  padding: 1.45rem;
  border-radius: var(--radius);
}

.pillar {
  background: #ffffff;
  border: 1px solid rgba(19, 33, 36, 0.12);
  box-shadow: 0 12px 40px rgba(41, 54, 50, 0.08);
}

.pillar-index {
  display: inline-block;
  margin-bottom: 2.5rem;
  color: #0b8179;
  font-weight: 800;
}

.pillar p,
.timeline p,
.contact p {
  color: #4d5d5f;
}

.evidence {
  color: var(--ink);
}

.evidence-card {
  background: var(--panel-strong);
  border: 1px solid var(--line);
}

.evidence-card strong {
  display: block;
  margin-bottom: 1rem;
  color: var(--cyan);
  font-size: 1.05rem;
}

.timeline {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  padding: 0;
  background: rgba(19, 33, 36, 0.14);
  border: 1px solid rgba(19, 33, 36, 0.14);
}

.timeline li {
  min-height: 230px;
  padding: 1.3rem;
  background: #ffffff;
}

.timeline span {
  display: block;
  min-height: 3rem;
  margin-bottom: 2.4rem;
  color: #132124;
  font-size: 1.1rem;
  font-weight: 800;
}

.contact {
  justify-content: space-between;
  align-items: flex-end;
  gap: 2rem;
  background: #ffffff;
  color: #132124;
  border-top: 5px solid var(--coral);
}

.contact > div {
  max-width: 760px;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem clamp(1.1rem, 5vw, 4rem) 3rem;
  color: #132124;
}

footer p {
  max-width: 720px;
  margin: 0;
  color: #5c6668;
  font-size: 0.88rem;
}

@media (max-width: 860px) {
  .site-header {
    position: absolute;
    align-items: flex-start;
  }

  nav {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: 6rem;
  }

  .hero-image {
    object-position: 70% center;
  }

  .hero-shade {
    background:
      linear-gradient(90deg, rgba(7, 17, 20, 0.98), rgba(7, 17, 20, 0.52)),
      linear-gradient(0deg, rgba(7, 17, 20, 0.9), rgba(7, 17, 20, 0.1));
  }

  h1 {
    font-size: clamp(3.2rem, 18vw, 5.4rem);
  }

  .hero-panel,
  .section-grid,
  .pillar-grid,
  .evidence-grid,
  .timeline {
    grid-template-columns: 1fr;
  }

  .pillar,
  .evidence-card,
  .timeline li {
    min-height: auto;
  }

  .timeline span {
    min-height: 0;
    margin-bottom: 0.8rem;
  }

  .contact,
  footer {
    display: block;
  }

  .contact .button {
    margin-top: 1rem;
    width: 100%;
  }

  footer p + p {
    margin-top: 0.8rem;
  }
}

@media (max-width: 480px) {
  .hero-actions .button {
    width: 100%;
  }

  .hero-panel > div {
    min-height: auto;
  }
}