:root {
  --ink: #f7f3ea;
  --muted: #c7c0b3;
  --dim: #8f887b;
  --coal: #10120f;
  --charcoal: #171b17;
  --panel: #20251f;
  --line: rgba(247, 243, 234, 0.14);
  --green: #57c484;
  --green-deep: #153c2a;
  --brass: #d6aa55;
  --rust: #af5f3a;
  --paper: #f3eadb;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--coal);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

body::selection {
  color: var(--coal);
  background: var(--brass);
}

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 58px);
  background: linear-gradient(180deg, rgba(16, 18, 15, 0.86), rgba(16, 18, 15, 0.18));
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  color: var(--coal);
  background: var(--brass);
  border-radius: 8px;
  box-shadow: 0 8px 30px rgba(214, 170, 85, 0.22);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.2vw, 30px);
  color: var(--muted);
  font-size: 0.93rem;
  font-weight: 600;
}

.nav-links a {
  transition: color 180ms ease;
}

.nav-links a:hover {
  color: var(--ink);
}

.hero {
  position: relative;
  display: grid;
  min-height: 92vh;
  overflow: hidden;
  isolation: isolate;
}

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

.hero-image {
  z-index: -3;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.94) contrast(1.08);
}

.hero-overlay {
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(16, 18, 15, 0.96) 0%, rgba(16, 18, 15, 0.78) 36%, rgba(16, 18, 15, 0.28) 70%, rgba(16, 18, 15, 0.5) 100%),
    linear-gradient(180deg, rgba(16, 18, 15, 0.38) 0%, rgba(16, 18, 15, 0.34) 65%, var(--coal) 100%);
}

.hero-content {
  width: min(720px, calc(100% - 36px));
  align-self: center;
  padding: 118px 0 92px;
  margin-left: clamp(18px, 7vw, 104px);
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

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

h1 {
  max-width: 690px;
  margin-bottom: 22px;
  font-size: clamp(3.1rem, 6.8vw, 7.6rem);
  line-height: 0.94;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 610px;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  line-height: 1.72;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border-radius: 8px;
  font-weight: 800;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

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

.button.primary {
  color: var(--coal);
  background: var(--paper);
}

.button.secondary {
  border: 1px solid var(--line);
  color: var(--ink);
  background: rgba(247, 243, 234, 0.06);
}

.button.private-link {
  border: 1px solid rgba(87, 196, 132, 0.34);
  color: var(--green);
  background: rgba(87, 196, 132, 0.08);
}

.hero-status {
  position: absolute;
  top: 112px;
  right: clamp(18px, 4vw, 58px);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  background: rgba(16, 18, 15, 0.62);
  backdrop-filter: blur(12px);
  font-size: 0.9rem;
  font-weight: 700;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--green);
  box-shadow: 0 0 0 6px rgba(87, 196, 132, 0.13);
}

.section {
  padding: clamp(66px, 9vw, 124px) clamp(18px, 6vw, 92px);
}

.intro {
  display: grid;
  grid-template-columns: minmax(220px, 0.82fr) minmax(260px, 1fr);
  gap: clamp(28px, 6vw, 92px);
  align-items: start;
  background: var(--coal);
}

.section-heading h2 {
  max-width: 760px;
  margin-bottom: 0;
  font-size: clamp(2rem, 4.2vw, 4.7rem);
  line-height: 1;
  letter-spacing: 0;
}

.intro > p {
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(1.08rem, 1.7vw, 1.42rem);
  line-height: 1.75;
}

.system-band {
  background:
    linear-gradient(180deg, rgba(87, 196, 132, 0.06), transparent 38%),
    var(--charcoal);
}

.system-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 42px;
}

.system-card {
  min-height: 285px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(247, 243, 234, 0.045);
  box-shadow: var(--shadow);
}

.card-index {
  display: inline-block;
  margin-bottom: 68px;
  color: var(--brass);
  font-weight: 800;
}

.system-card h3,
.timeline h3 {
  margin-bottom: 12px;
  font-size: 1.2rem;
}

.system-card p,
.timeline p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.65;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  padding-top: 0;
  padding-bottom: 0;
  background: var(--line);
}

.metric {
  display: grid;
  min-height: 168px;
  align-content: center;
  gap: 10px;
  padding: 28px;
  background: var(--coal);
}

.metric strong {
  font-size: clamp(1.3rem, 2vw, 2rem);
}

.metric span {
  color: var(--dim);
  line-height: 1.5;
}

.roadmap {
  background: var(--paper);
  color: #1d201b;
}

.roadmap .eyebrow {
  color: #287044;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  padding: 0;
  margin: 44px 0 0;
  list-style: none;
  background: rgba(29, 32, 27, 0.16);
}

.timeline li {
  min-height: 260px;
  padding: 26px;
  background: var(--paper);
}

.timeline span {
  display: inline-block;
  margin-bottom: 54px;
  color: #8a5f22;
  font-weight: 800;
}

.timeline p {
  color: #5f5b51;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 34px clamp(18px, 6vw, 92px);
  border-top: 1px solid var(--line);
  background: var(--coal);
}

.site-footer div {
  display: grid;
  gap: 6px;
}

.site-footer span {
  color: var(--dim);
}

.site-footer a {
  color: var(--brass);
  font-weight: 800;
}

@media (max-width: 980px) {
  .nav-links {
    display: none;
  }

  .hero {
    min-height: 88vh;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(16, 18, 15, 0.96), rgba(16, 18, 15, 0.7)),
      linear-gradient(180deg, rgba(16, 18, 15, 0.2), var(--coal));
  }

  .hero-status {
    top: auto;
    bottom: 24px;
    left: 18px;
    right: auto;
  }

  .intro,
  .system-grid,
  .metrics,
  .timeline {
    grid-template-columns: 1fr;
  }

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

  .card-index,
  .timeline span {
    margin-bottom: 32px;
  }
}

@media (max-width: 620px) {
  .site-header {
    padding-top: 14px;
    padding-bottom: 14px;
  }

  .brand {
    font-size: 0.95rem;
  }

  .hero-content {
    width: calc(100% - 32px);
    margin-left: 16px;
    padding-top: 104px;
  }

  h1 {
    font-size: clamp(2.7rem, 14vw, 4.5rem);
  }

  .button {
    width: 100%;
  }

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