:root {
  --ink: #111318;
  --muted: #5b616e;
  --paper: #f7f4ed;
  --line: rgba(17, 19, 24, 0.14);
  --accent: #0f766e;
  --accent-strong: #0b4f4a;
  --white: #fffaf0;
  --shadow: 0 28px 80px rgba(17, 19, 24, 0.18);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

a {
  color: inherit;
}

.topbar {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(20px, 4vw, 56px);
  color: var(--white);
  mix-blend-mode: difference;
}

.brand,
nav {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.brand-mark {
  width: 14px;
  height: 14px;
  border: 2px solid currentColor;
  transform: rotate(45deg);
}

nav a {
  text-decoration: none;
  opacity: 0.8;
}

nav a:hover {
  opacity: 1;
}

.hero {
  position: relative;
  min-height: 86svh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 0.9fr);
  align-items: stretch;
  overflow: hidden;
  background:
    linear-gradient(110deg, rgba(17, 19, 24, 0.68), rgba(17, 19, 24, 0.2)),
    radial-gradient(circle at 25% 24%, rgba(15, 118, 110, 0.8), transparent 30%),
    linear-gradient(135deg, #0e1117, #2c241f 52%, #f1d8a7);
}

.hero-visual {
  position: relative;
  min-height: 500px;
}

.scan-plane {
  position: absolute;
  left: clamp(20px, 6vw, 88px);
  right: clamp(24px, 8vw, 130px);
  top: 50%;
  transform: translateY(-50%) rotate(-3deg);
  min-height: 420px;
  padding: 28px;
  color: var(--white);
  background: rgba(10, 14, 20, 0.78);
  border: 1px solid rgba(255, 250, 240, 0.18);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.scan-header,
.scan-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
}

.scan-header {
  margin-bottom: 34px;
  color: rgba(255, 250, 240, 0.72);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.scan-grid {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: clamp(12px, 1.2vw, 15px);
  line-height: 1.55;
}

.scan-grid span,
.scan-grid strong {
  padding: 15px 0;
  border-top: 1px solid rgba(255, 250, 240, 0.13);
}

.scan-grid strong {
  color: #8ff0d2;
  font-weight: 600;
  text-align: right;
}

.scan-line {
  position: absolute;
  left: 0;
  right: 0;
  top: 22%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(143, 240, 210, 0.9), transparent);
  animation: scan 3.2s ease-in-out infinite;
}

.hero-copy {
  align-self: center;
  max-width: 620px;
  padding: 92px clamp(24px, 5vw, 70px) 56px 0;
  color: var(--white);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #8ff0d2;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
  line-height: 0.98;
}

h1 {
  font-size: clamp(44px, 5.8vw, 82px);
}

h2 {
  max-width: 840px;
  font-size: clamp(36px, 5vw, 76px);
}

.lede {
  max-width: 500px;
  margin: 26px 0 0;
  color: rgba(255, 250, 240, 0.8);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid currentColor;
  border-radius: 4px;
  font-weight: 800;
  text-decoration: none;
  transition:
    transform 180ms ease,
    background-color 180ms ease,
    color 180ms ease;
}

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

.button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--white);
}

.button.primary:hover {
  background: var(--accent-strong);
}

.button.secondary {
  color: var(--white);
}

.button.large {
  min-width: min(100%, 260px);
  min-height: 58px;
}

.button.is-disabled {
  pointer-events: none;
  opacity: 0.55;
}

.proof,
.contents,
.sample,
.workflow,
.buy {
  padding: clamp(72px, 10vw, 140px) clamp(20px, 5vw, 72px);
}

.proof {
  background: var(--ink);
  color: var(--white);
}

.proof p {
  max-width: 980px;
  margin: 0;
  font-size: clamp(24px, 4vw, 54px);
  line-height: 1.12;
}

.contents {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: clamp(36px, 6vw, 96px);
}

.sample {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 1.15fr);
  gap: clamp(32px, 5vw, 78px);
  align-items: start;
  background: #fffaf0;
}

.sample p {
  max-width: 620px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.55;
}

.sample pre {
  overflow-x: auto;
  margin: 0;
  padding: clamp(20px, 3vw, 34px);
  color: #d5f7e9;
  background: #111318;
  border-radius: 6px;
  box-shadow: var(--shadow);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 14px;
  line-height: 1.7;
}

.deliverables {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.deliverables li {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 18px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.deliverables span,
.steps span {
  color: var(--accent);
  font-weight: 900;
}

.deliverables strong {
  display: block;
  margin-bottom: 8px;
  font-size: 20px;
}

.deliverables p,
.workflow p,
.buy p,
.checkout-note {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.55;
}

.workflow {
  color: var(--white);
  background: #18201f;
}

.workflow .eyebrow {
  color: #8ff0d2;
}

.workflow h2 {
  margin-bottom: 40px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255, 250, 240, 0.18);
}

.steps div {
  min-height: 220px;
  padding: 28px;
  background: #18201f;
}

.steps p {
  margin-top: 70px;
  color: rgba(255, 250, 240, 0.78);
}

.buy {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 28px;
}

.buy p {
  max-width: 620px;
  margin-top: 22px;
}

.checkout-note {
  grid-column: 1 / -1;
  font-size: 14px;
}

@keyframes scan {
  0%,
  100% {
    transform: translateY(0);
    opacity: 0.2;
  }
  50% {
    transform: translateY(250px);
    opacity: 1;
  }
}

@media (max-width: 820px) {
  .topbar {
    position: absolute;
    align-items: flex-start;
  }

  nav {
    display: none;
  }

  .hero,
  .contents,
  .sample,
  .buy {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual {
    min-height: 310px;
  }

  .hero-copy {
    padding: 0 22px 42px;
  }

  .scan-plane {
    left: 20px;
    right: 20px;
    min-height: 238px;
    padding: 16px;
  }

  .scan-header {
    margin-bottom: 14px;
  }

  .scan-grid span,
  .scan-grid strong {
    padding: 8px 0;
  }

  .scan-grid {
    grid-template-columns: 1fr;
  }

  .scan-grid strong {
    text-align: left;
    padding-top: 0;
    border-top: 0;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .steps div {
    min-height: 170px;
  }

  .steps p {
    margin-top: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    transition-duration: 1ms !important;
  }
}