* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #020611;
  color: #f5f7fa;
  overflow-x: hidden;
}

.site-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 15% 10%, rgba(57, 255, 136, 0.2), transparent 28%),
    radial-gradient(circle at 85% 20%, rgba(54, 144, 255, 0.14), transparent 30%),
    radial-gradient(circle at 50% 90%, rgba(57, 255, 136, 0.08), transparent 34%),
    linear-gradient(135deg, #07111f 0%, #0b1628 45%, #020611 100%);
}

.site-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 78%);
  opacity: 0.35;
}

main {
  width: 100%;
}

.top-nav,
.hero-section,
.flow-section,
.showcase-section,
.comparison-section,
.proof-section,
.trust-section,
.bottom-cta {
  width: calc(100% - 48px);
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
}

.top-nav {
  padding: 38px 0 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-link {
  display: inline-flex;
}

.brand-logo {
  width: 285px;
  max-width: 100%;
  display: block;
  filter: drop-shadow(0 0 24px rgba(57, 255, 136, 0.16));
}

.nav-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.nav-links a {
  color: #c7d2df;
  text-decoration: none;
  font-weight: 800;
  font-size: 14px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-links a:hover {
  border-color: rgba(57, 255, 136, 0.42);
}

.eyebrow {
  margin: 0 0 16px;
  color: #39ff88;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-section {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 38px;
  align-items: stretch;
  margin-bottom: 96px;
}

.hero-copy {
  padding: 44px;
  border-radius: 30px;
  background:
    radial-gradient(circle at top left, rgba(57, 255, 136, 0.12), transparent 36%),
    rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.09);
  box-shadow: 0 24px 90px rgba(0, 0, 0, 0.32);
}

h1 {
  font-size: clamp(46px, 6vw, 84px);
  line-height: 0.94;
  margin: 0 0 28px;
  letter-spacing: -0.06em;
}

.hero-subtitle {
  margin: 0;
  color: #c7d2df;
  font-size: 21px;
  line-height: 1.65;
}

.hero-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 38px;
  border-radius: 30px;
  background:
    linear-gradient(135deg, rgba(57, 255, 136, 0.16), rgba(255, 255, 255, 0.045)),
    rgba(2, 8, 18, 0.82);
  border: 1px solid rgba(57, 255, 136, 0.22);
  box-shadow:
    0 24px 90px rgba(0, 0, 0, 0.34),
    0 0 70px rgba(57, 255, 136, 0.08);
}

.mini-label {
  margin: 0 0 14px;
  color: #39ff88;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero-card h2,
.section-heading h2,
.showcase-copy h2,
.bottom-cta h2 {
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1;
  letter-spacing: -0.045em;
  margin: 0 0 18px;
}

.hero-card p,
.section-heading p,
.showcase-copy p,
.bottom-cta p {
  color: #c7d2df;
  font-size: 18px;
  line-height: 1.65;
}

.flow-section,
.showcase-section,
.comparison-section,
.proof-section,
.trust-section,
.bottom-cta {
  margin-bottom: 96px;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 36px;
}

.centered {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

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

.flow-card,
.signal-card,
.comparison-panel,
.proof-copy,
.trust-card {
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 22px;
  box-shadow: 0 18px 70px rgba(0, 0, 0, 0.24);
}

.flow-card {
  padding: 24px;
}

.step-number {
  display: inline-block;
  margin-bottom: 18px;
  color: #39ff88;
  font-weight: 900;
  letter-spacing: 0.14em;
}

.flow-card h3,
.signal-card span,
.comparison-panel h3,
.proof-copy h3,
.trust-card h3 {
  margin: 0 0 12px;
  color: #ffffff;
  font-size: 22px;
}

.flow-card p,
.signal-card p,
.comparison-panel li,
.proof-copy li,
.trust-card p {
  color: #c7d2df;
  line-height: 1.65;
}

.flow-card code {
  display: inline-block;
  margin-top: 8px;
  color: #39ff88;
  font-size: 14px;
}

.showcase-section {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 36px;
  align-items: center;
}

.signal-stack {
  display: grid;
  gap: 14px;
}

.signal-card {
  padding: 22px 24px;
  border-left: 3px solid rgba(57, 255, 136, 0.65);
}

.signal-card span {
  display: block;
  color: #39ff88;
  font-family: "Courier New", Courier, monospace;
  font-size: 15px;
}

.signal-card p {
  margin: 0;
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.comparison-panel {
  padding: 30px;
}

.bright-panel {
  background:
    linear-gradient(135deg, rgba(57, 255, 136, 0.11), rgba(255, 255, 255, 0.04)),
    rgba(255, 255, 255, 0.055);
  border-color: rgba(57, 255, 136, 0.24);
}

.muted-panel {
  opacity: 0.88;
}

.comparison-panel ul,
.proof-copy ul {
  margin: 0;
  padding-left: 20px;
}

.comparison-panel li,
.proof-copy li {
  margin-bottom: 10px;
}

.proof-grid {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 28px;
  align-items: stretch;
}

.proof-copy {
  padding: 30px;
}

.current-screenshot {
  padding: 10px;
  background: rgba(2, 8, 18, 0.88);
  border: 1px solid rgba(57, 255, 136, 0.32);
  border-radius: 22px;
  box-shadow:
    0 28px 90px rgba(0, 0, 0, 0.5),
    0 0 70px rgba(57, 255, 136, 0.08);
  overflow: hidden;
}

.current-screenshot img {
  width: 100%;
  display: block;
  border-radius: 14px;
}

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

.trust-card {
  padding: 24px;
}

.bottom-cta {
  padding: 44px;
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(57, 255, 136, 0.11), rgba(255, 255, 255, 0.035)),
    rgba(2, 8, 18, 0.82);
  border: 1px solid rgba(57, 255, 136, 0.18);
  box-shadow: 0 24px 90px rgba(0, 0, 0, 0.35);
}

.buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.button {
  text-decoration: none;
  padding: 15px 22px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

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

.primary {
  background: #39ff88;
  color: #031109;
  box-shadow: 0 0 32px rgba(57, 255, 136, 0.35);
}

.secondary {
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #f5f7fa;
  background: rgba(255, 255, 255, 0.05);
}

@media (max-width: 1100px) {
  .flow-grid,
  .trust-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 900px) {
  .hero-section,
  .showcase-section,
  .proof-grid,
  .comparison-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy,
  .hero-card {
    padding: 32px;
  }
}

@media (max-width: 620px) {
  .top-nav,
  .hero-section,
  .flow-section,
  .showcase-section,
  .comparison-section,
  .proof-section,
  .trust-section,
  .bottom-cta {
    width: calc(100% - 36px);
    margin-bottom: 56px;
  }

  .top-nav {
    padding-top: 32px;
    padding-bottom: 32px;
    flex-direction: column;
    align-items: flex-start;
  }

  .brand-logo {
    width: 250px;
  }

  h1 {
    font-size: 44px;
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .hero-copy,
  .hero-card,
  .bottom-cta {
    padding: 28px;
  }

  .flow-grid,
  .trust-grid {
    grid-template-columns: 1fr;
  }
}