:root {
  --ink: #06110e;
  --mist: #d7e4dc;
  --paper: #f2f6f3;
  --accent: #c8f06a;
  --accent-deep: #8fbe3c;
  --line: rgba(215, 228, 220, 0.14);
  --text: #e8f0eb;
  --muted: #9bb3a6;
  --frame: min(1120px, calc(100% - 3rem));
  color: var(--text);
  background: var(--ink);
  font-family: Manrope, ui-sans-serif, system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(1100px 640px at 78% 8%, rgba(200, 240, 106, 0.16), transparent 58%),
    radial-gradient(900px 520px at 8% 42%, rgba(47, 110, 86, 0.32), transparent 52%),
    linear-gradient(165deg, #06110e 0%, #0a1a15 46%, #07120f 100%);
  overflow-x: hidden;
}

.atmosphere {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(215, 228, 220, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(215, 228, 220, 0.035) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at 70% 20%, black 10%, transparent 72%);
  animation: grid-drift 32s linear infinite;
}

@keyframes grid-drift {
  from { transform: translateY(0); }
  to { transform: translateY(80px); }
}

.frame {
  width: var(--frame);
  margin-inline: auto;
}

.top,
main,
footer {
  position: relative;
  z-index: 1;
}

.top {
  padding: 1.35rem 0;
}

.top .frame {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-family: Syne, sans-serif;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--paper);
  text-decoration: none;
  font-size: 1.2rem;
}

nav {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

nav a {
  color: var(--mist);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 160ms ease;
}

nav a:hover {
  color: var(--paper);
}

.nav-cta {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.55rem 1.05rem;
  background: rgba(255, 255, 255, 0.03);
}

.hero {
  position: relative;
  min-height: calc(100svh - 4.5rem);
  display: grid;
  align-items: center;
  padding: 3.5rem 0 5.5rem;
  isolation: isolate;
}

.hero-plane {
  position: absolute;
  inset: 8% -8% 6% 42%;
  border-radius: 38% 62% 44% 56% / 52% 38% 62% 48%;
  background:
    radial-gradient(circle at 34% 28%, rgba(200, 240, 106, 0.3), transparent 38%),
    linear-gradient(145deg, #14372b, #06110e 58%, #0f2a21);
  box-shadow:
    0 40px 100px rgba(0, 0, 0, 0.4),
    inset 0 0 0 1px rgba(215, 228, 220, 0.1);
  overflow: hidden;
  opacity: 0;
  animation: fade 1.1s ease forwards 0.2s;
  z-index: -1;
}

.vault-ring,
.vault-core {
  position: absolute;
  inset: 22%;
  border-radius: 50%;
  border: 1px solid rgba(200, 240, 106, 0.32);
}

.vault-core {
  inset: 36%;
  background: radial-gradient(circle at 40% 35%, #e7f7b8, #8dbb3a 55%, #2f4d1d);
  box-shadow: 0 0 48px rgba(200, 240, 106, 0.28);
}

.vault-scan {
  position: absolute;
  left: 12%;
  right: 12%;
  height: 2px;
  top: 22%;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  animation: scan 3.8s ease-in-out infinite;
}

.hero-copy {
  max-width: 34rem;
}

.brand-mark {
  margin: 0 0 1.1rem;
  font-family: Syne, sans-serif;
  font-size: clamp(3.2rem, 9vw, 5.8rem);
  font-weight: 800;
  letter-spacing: -0.065em;
  line-height: 0.9;
  color: var(--accent);
  opacity: 0;
  transform: translateY(18px);
  animation: rise 0.85s ease forwards 0.08s;
}

.hero h1 {
  margin: 0;
  font-family: Syne, sans-serif;
  font-size: clamp(1.85rem, 4.2vw, 2.85rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.12;
  color: var(--paper);
  opacity: 0;
  transform: translateY(18px);
  animation: rise 0.85s ease forwards 0.2s;
}

.lead {
  margin: 1.35rem 0 0;
  color: var(--muted);
  font-size: 1.12rem;
  line-height: 1.55;
  max-width: 28rem;
  opacity: 0;
  transform: translateY(18px);
  animation: rise 0.85s ease forwards 0.34s;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2.1rem;
  opacity: 0;
  transform: translateY(18px);
  animation: rise 0.85s ease forwards 0.48s;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.8rem 1.3rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.cta.primary {
  background: var(--accent);
  color: #102016;
}

.cta.secondary {
  border: 1px solid var(--line);
  color: var(--paper);
}

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

.cta.secondary:hover {
  border-color: rgba(215, 228, 220, 0.35);
}

@keyframes rise {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade {
  to { opacity: 1; }
}

@keyframes scan {
  0%, 100% { top: 18%; opacity: 0.2; }
  50% { top: 74%; opacity: 0.85; }
}

.band {
  padding: 5.5rem 0;
  border-top: 1px solid var(--line);
}

.eyebrow {
  margin: 0;
  color: var(--accent-deep);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.band h2 {
  margin: 0.85rem 0 0;
  font-family: Syne, sans-serif;
  font-size: clamp(1.9rem, 3.6vw, 2.8rem);
  letter-spacing: -0.045em;
  line-height: 1.08;
  color: var(--paper);
  max-width: 18ch;
}

.steps {
  list-style: none;
  margin: 3rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.steps li {
  padding: 0 2rem 0 0;
  margin-right: 2rem;
  border-right: 1px solid var(--line);
}

.steps li:last-child {
  border-right: 0;
  margin-right: 0;
  padding-right: 0;
}

.steps span {
  display: block;
  font-family: Syne, sans-serif;
  font-size: 1.15rem;
  color: var(--accent);
  letter-spacing: -0.02em;
  margin-bottom: 1.1rem;
}

.steps h3 {
  margin: 0;
  font-family: Syne, sans-serif;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
  color: var(--paper);
}

.steps p,
.support {
  margin: 0.7rem 0 0;
  color: var(--muted);
  line-height: 1.65;
  font-size: 1.02rem;
}

.why {
  padding-bottom: 6.5rem;
}

.why-inner {
  max-width: 40rem;
}

.why .support {
  max-width: 28rem;
}

.why .cta {
  margin-top: 2.1rem;
}

footer {
  border-top: 1px solid var(--line);
  padding: 1.6rem 0 2.2rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-inner p {
  margin: 0;
}

@media (max-width: 900px) {
  :root {
    --frame: min(1120px, calc(100% - 2rem));
  }

  .hero {
    min-height: auto;
    padding: 2.5rem 0 4rem;
  }

  .hero-plane {
    inset: auto 0 -4% -20%;
    height: 46vw;
    min-height: 220px;
    max-height: 320px;
    opacity: 0.55;
  }

  .hero-copy {
    max-width: none;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: 2.4rem;
  }

  .steps li {
    margin: 0;
    padding: 1.4rem 0;
    border-right: 0;
    border-top: 1px solid var(--line);
  }

  .steps li:first-child {
    border-top: 0;
    padding-top: 0;
  }

  .steps span {
    margin-bottom: 0.55rem;
  }

  nav a:not(.nav-cta) {
    display: none;
  }
}

@media (max-width: 600px) {
  .brand-mark {
    font-size: clamp(2.6rem, 14vw, 3.6rem);
  }

  .hero h1 {
    font-size: clamp(1.55rem, 7.2vw, 2rem);
  }

  .band {
    padding: 4rem 0;
  }

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