:root {
  --bg: #0d1117;
  --panel: #121821;
  --panel-2: #161d27;
  --text: #f4f7fb;
  --muted: #a6b3c2;
  --line: #283241;
  --accent: #61dafb;
  --accent-2: #9be7ff;
  --ok: #3ddc97;
  --fail: #ff5f6d;
  --warn: #ffd166;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(97, 218, 251, 0.16), transparent 32rem),
    radial-gradient(circle at 80% 15%, rgba(61, 220, 151, 0.08), transparent 26rem),
    var(--bg);
  color: var(--text);
}

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

.site-header {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 750;
  font-size: 20px;
}

.logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #071018;
  background: linear-gradient(135deg, var(--accent), var(--ok));
  font-weight: 900;
}

.nav {
  display: flex;
  gap: 26px;
  color: var(--muted);
  font-size: 14px;
}

.nav a:hover,
footer a:hover {
  color: var(--accent);
}

.header-cta {
  padding: 10px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--accent);
  font-size: 14px;
}

main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px;
}

.hero {
  min-height: 620px;
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 56px;
  align-items: center;
  padding: 64px 0 80px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 750;
}

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

h1 {
  margin-bottom: 24px;
  font-size: clamp(42px, 6vw, 74px);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.04;
  letter-spacing: -0.04em;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
}

.lead {
  max-width: 660px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.65;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 750;
}

.button.primary {
  color: #071018;
  background: linear-gradient(135deg, var(--accent), var(--ok));
}

.button.secondary {
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
}

.button.primary:hover {
  background: #3b82f6;
  transform: translateY(-2px);
}

.button.secondary:hover {
  background: #3b82f6;
  transform: translateY(-2px);
}

.header-cta:hover {
  background: #3b82f6;
  color: #ffffff;
  transform: translateY(-2px);
}

.small-note {
  margin-top: 18px;
  color: var(--muted);
  font-size: 14px;
}

.product-card {
  border: 1px solid var(--line);
  border-radius: 26px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.025));
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.36);
  overflow: hidden;
}

.card-top {
  height: 48px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 18px;
  background: rgba(255, 255, 255, 0.03);
}

.card-top span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #3a4656;
}

.flow-preview {
  padding: 34px;
  display: grid;
  gap: 18px;
}

.node {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 20px;
  background: var(--panel);
}

.node b,
.node small {
  display: block;
}

.node small {
  margin-top: 6px;
  color: var(--muted);
}

.source {
  border-left: 4px solid var(--accent);
}

.transform {
  border-left: 4px solid var(--warn);
}

.target {
  border-left: 4px solid var(--ok);
}

.line {
  width: 2px;
  height: 28px;
  margin-left: 34px;
  background: linear-gradient(var(--line), var(--accent));
}

.status-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  border-top: 1px solid var(--line);
  background: var(--line);
}

.status-grid div {
  padding: 16px;
  background: rgba(18, 24, 33, 0.92);
  color: var(--muted);
  font-size: 14px;
}

.dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  margin-right: 8px;
  border-radius: 50%;
}

.ok {
  background: var(--ok);
}

.fail {
  background: var(--fail);
}

.warn {
  background: var(--warn);
}

.problem,
.audience,
.cta-section,
.how {
  margin-top: 32px;
  padding: 54px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(18, 24, 33, 0.62);
}

.problem,
.audience {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 42px;
  align-items: start;
}

.problem p,
.audience li,
.cta-section p,
.steps p,
.features p {
  color: var(--muted);
  line-height: 1.65;
}

.features {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.features article,
.steps div {
  min-height: 190px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel);
}

.features article:hover,
.steps div:hover {
  border-color: rgba(97, 218, 251, 0.5);
}

.steps {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.steps span {
  display: inline-block;
  margin-bottom: 24px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
}

.audience ul {
  margin: 0;
  padding-left: 18px;
}

.audience li + li {
  margin-top: 12px;
}

.cta-section {
  text-align: center;
  margin-bottom: 56px;
}

.cta-section p {
  max-width: 720px;
  margin: 0 auto 28px;
}

footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px 24px 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

@media (max-width: 920px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    flex-wrap: wrap;
  }

  .hero,
  .problem,
  .audience {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 620px) {
  main,
  .site-header {
    padding: 18px;
  }

  .hero {
    padding-top: 36px;
  }

  .problem,
  .audience,
  .cta-section,
  .how {
    padding: 28px;
  }

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

  footer {
    flex-direction: column;
  }
}