:root {
  color-scheme: dark;
  --ink: #f8fafc;
  --muted: #a8b3cf;
  --dim: #72809f;
  --bg: #090d14;
  --panel: #101827;
  --panel-2: #172235;
  --line: #2c3a50;
  --violet: #6d5df2;
  --cyan: #24c6dc;
  --teal: #14b8a6;
  --amber: #ffb84d;
  --danger: #f87171;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: #090d14;
  color: var(--ink);
}

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

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 76px;
  padding: 0 clamp(20px, 5vw, 72px);
  transition: background 180ms ease, border-color 180ms ease;
  border-bottom: 1px solid transparent;
}

.site-header[data-elevated="true"] {
  background: rgba(9, 13, 20, 0.9);
  border-color: rgba(168, 179, 207, 0.16);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.brand img {
  width: 42px;
  height: 42px;
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 3vw, 34px);
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 650;
}

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

.hero {
  position: relative;
  min-height: 94vh;
  display: grid;
  align-items: end;
  padding: 116px clamp(20px, 5vw, 72px) 72px;
  overflow: hidden;
  isolation: isolate;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, rgba(9, 13, 20, 0.96) 0%, rgba(9, 13, 20, 0.74) 42%, rgba(9, 13, 20, 0.28) 100%);
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center right;
  opacity: 0.88;
}

.hero-content {
  width: min(680px, 100%);
  padding-bottom: 4vh;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 11ch;
  margin-bottom: 18px;
  font-size: clamp(3.8rem, 9vw, 7.8rem);
  line-height: 0.9;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2rem, 4vw, 4.25rem);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.18rem;
  line-height: 1.2;
}

.hero-copy {
  max-width: 60ch;
  margin-bottom: 28px;
  color: #dce5f7;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.6;
}

.hero-actions,
.download {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  gap: 10px;
  border-radius: 8px;
  padding: 0 18px;
  font-weight: 800;
  line-height: 1;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

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

.button svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  flex: 0 0 auto;
}

.primary {
  background: var(--ink);
  color: #090d14;
}

.secondary {
  border: 1px solid rgba(248, 250, 252, 0.22);
  color: var(--ink);
  background: rgba(16, 24, 39, 0.58);
}

.download-note {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.96rem;
}

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

.intro > div {
  min-height: 142px;
  padding: 34px clamp(20px, 5vw, 72px);
  background: #0e1522;
}

.stat {
  display: block;
  margin-bottom: 8px;
  color: var(--amber);
  font-size: clamp(1.35rem, 2vw, 2rem);
  font-weight: 850;
}

.intro p,
.feature p,
.steps span,
.download p,
footer {
  color: var(--muted);
  line-height: 1.65;
}

.section,
.walkthrough,
.ids-band,
.download {
  padding: 100px clamp(20px, 5vw, 72px);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(240px, 1fr);
  gap: clamp(24px, 6vw, 80px);
  align-items: end;
  margin-bottom: 44px;
}

.section-heading .eyebrow {
  align-self: start;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.feature {
  min-height: 276px;
  padding: 28px;
  background: var(--panel);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.feature-icon {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 46px;
  border-radius: 50%;
  background: #1d2940;
  color: var(--cyan);
  font-size: 0.85rem;
  font-weight: 900;
}

.walkthrough {
  background: #0d1420;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  padding: 0;
  margin: 0;
  list-style: none;
  counter-reset: step;
}

.steps li {
  position: relative;
  min-height: 214px;
  padding: 76px 22px 24px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  counter-increment: step;
}

.steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: 22px;
  left: 22px;
  color: var(--amber);
  font-weight: 900;
}

.steps strong,
.steps span {
  display: block;
}

.steps strong {
  margin-bottom: 10px;
  font-size: 1.08rem;
}

.ids-band {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 1fr);
  gap: clamp(28px, 7vw, 92px);
  align-items: start;
  background: #0a111c;
  border-top: 1px solid var(--line);
}

.ids-band h2 {
  max-width: 12ch;
}

.ids-copy {
  max-width: 680px;
  color: var(--muted);
  line-height: 1.7;
}

.ids-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 22px;
  margin-top: 24px;
  font-weight: 800;
}

.text-link,
footer a {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-color: rgba(36, 198, 220, 0.36);
  text-underline-offset: 4px;
}

.text-link:hover,
footer a:hover {
  color: var(--ink);
}

.download {
  justify-content: space-between;
  background: linear-gradient(135deg, #101827 0%, #12303a 52%, #2f2633 100%);
}

.download > div {
  max-width: 680px;
}

.download h2 {
  max-width: 12ch;
  margin-bottom: 22px;
  font-size: clamp(2.8rem, 6vw, 4.9rem);
  line-height: 1.08;
}

.download p {
  max-width: 58ch;
  margin-bottom: 0;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 28px clamp(20px, 5vw, 72px);
  background: #070a10;
  border-top: 1px solid var(--line);
  font-size: 0.92rem;
}

footer span:first-child {
  color: var(--ink);
  font-weight: 800;
}

@media (max-width: 960px) {
  .section-heading,
  .feature-grid,
  .steps,
  .intro {
    grid-template-columns: 1fr 1fr;
  }

  .hero::after {
    background: linear-gradient(180deg, rgba(9, 13, 20, 0.72), rgba(9, 13, 20, 0.97));
  }
}

@media (max-width: 680px) {
  .site-header {
    height: auto;
    min-height: 70px;
    align-items: flex-start;
    padding-top: 14px;
    padding-bottom: 14px;
  }

  .brand span {
    max-width: 118px;
    white-space: normal;
    line-height: 1.05;
  }

  nav {
    gap: 10px;
    font-size: 0.82rem;
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .hero {
    min-height: 92vh;
    padding-top: 130px;
    padding-bottom: 48px;
  }

  h1 {
    font-size: clamp(3.4rem, 18vw, 5.8rem);
  }

  .section-heading,
  .feature-grid,
  .steps,
  .intro {
    grid-template-columns: 1fr;
  }

  .section,
  .walkthrough,
  .ids-band,
  .download {
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .ids-band {
    grid-template-columns: 1fr;
  }

  .download {
    align-items: flex-start;
  }

  .download h2 {
    max-width: 11ch;
    font-size: clamp(2.75rem, 15vw, 4.5rem);
  }

  footer {
    flex-direction: column;
  }
}