:root {
  --bg: #080a08;
  --surface: #101310;
  --surface-2: #151a15;
  --line: rgba(208, 255, 0, 0.24);
  --lime: #d0ff00;
  --lime-soft: #ecff93;
  --text: #f6f8f4;
  --muted: #a8afa5;
  --max: 1120px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 84% 8%, rgba(208, 255, 0, 0.11), transparent 25rem),
    linear-gradient(180deg, #0a0d0a 0%, #070907 100%);
  color: var(--text);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

a {
  color: inherit;
}

main,
footer {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  gap: clamp(44px, 7vw, 96px);
  align-items: center;
  min-height: 100svh;
  padding: 56px 0;
}

.brand {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  margin-bottom: clamp(56px, 10vh, 112px);
  color: var(--text);
  font-size: 16px;
  font-weight: 900;
  letter-spacing: 0.24em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid var(--lime);
  border-radius: 50%;
  color: var(--lime);
  font-style: italic;
  letter-spacing: 0;
  box-shadow: 0 0 28px rgba(208, 255, 0, 0.18);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--lime);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.22em;
}

h1,
h2,
h3,
p {
  text-wrap: balance;
}

h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(50px, 7vw, 92px);
  line-height: 0.95;
  letter-spacing: -0.065em;
}

.intro {
  max-width: 640px;
  margin: 30px 0 0;
  color: #d6dbd2;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.55;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 28px 0 34px;
}

.tags span {
  padding: 9px 12px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 999px;
  color: #cbd0c8;
  background: rgba(255, 255, 255, 0.025);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.cta {
  display: inline-flex;
  gap: 11px;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  padding: 0 22px;
  border: 1px solid var(--lime);
  border-radius: 12px;
  color: #0c0e0b;
  background: var(--lime);
  box-shadow: 0 12px 42px rgba(208, 255, 0, 0.16);
  font-size: 15px;
  font-weight: 900;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.cta:hover {
  transform: translateY(-2px);
  background: var(--lime-soft);
  box-shadow: 0 18px 48px rgba(208, 255, 0, 0.24);
}

.cta:focus-visible,
.brand:focus-visible {
  outline: 3px solid white;
  outline-offset: 4px;
}

.cta svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.cta-note {
  margin: 13px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.hero-visual {
  position: relative;
  margin: 0;
}

.hero-visual::before {
  position: absolute;
  inset: 14% 10%;
  z-index: -1;
  content: "";
  border-radius: 50%;
  background: rgba(208, 255, 0, 0.28);
  filter: blur(90px);
}

.hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(208, 255, 0, 0.32);
  border-radius: 28px;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.48);
}

.method {
  padding: 110px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.section-heading {
  display: grid;
  grid-template-columns: 0.65fr 1.35fr;
  gap: 36px;
  align-items: end;
  margin-bottom: 46px;
}

h2 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1;
  letter-spacing: -0.05em;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.cards article {
  min-height: 250px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  background: linear-gradient(145deg, var(--surface-2), var(--surface));
}

.card-number {
  display: block;
  margin-bottom: 64px;
  color: var(--lime);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
}

h3 {
  margin: 0 0 12px;
  font-size: 22px;
  letter-spacing: -0.03em;
}

.cards p,
.final-cta > p:not(.eyebrow),
footer p {
  color: var(--muted);
  line-height: 1.6;
}

.cards p {
  margin: 0;
  font-size: 15px;
}

.final-cta {
  margin-bottom: 110px;
  padding: clamp(34px, 7vw, 80px);
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    radial-gradient(circle at 100% 0, rgba(208, 255, 0, 0.16), transparent 22rem),
    var(--surface);
}

.final-cta > p:not(.eyebrow) {
  max-width: 600px;
  margin: 20px 0 30px;
  font-size: 18px;
}

.cta-secondary {
  min-width: 200px;
}

footer {
  padding: 42px 0 60px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

footer p {
  max-width: 780px;
  margin: 7px 0;
  font-size: 12px;
}

footer strong {
  color: var(--text);
}

.copyright {
  margin-top: 24px;
  color: #757b72;
}

@media (max-width: 860px) {
  main,
  footer {
    width: min(calc(100% - 28px), var(--max));
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 30px;
  }

  .brand {
    margin-bottom: 62px;
  }

  .hero-visual {
    order: -1;
    width: min(100%, 520px);
    margin: 0 auto;
  }

  .section-heading,
  .cards {
    grid-template-columns: 1fr;
  }

  .method {
    padding: 84px 0;
  }

  .card-number {
    margin-bottom: 40px;
  }
}

@media (max-width: 520px) {
  h1 {
    font-size: clamp(44px, 15vw, 64px);
  }

  .hero {
    gap: 34px;
  }

  .hero-copy {
    padding-bottom: 30px;
  }

  .brand {
    margin-bottom: 48px;
  }

  .cta {
    width: 100%;
  }

  .cards article {
    min-height: 210px;
  }

  .final-cta {
    margin-bottom: 70px;
  }
}

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

  .cta {
    transition: none;
  }
}