:root {
  --cyan: #07d9ff;
  --cyan-soft: #8df3ff;
  --blue: #1e62ff;
  --violet: #6b7cff;
  --navy: #030814;
  --navy-2: #07162d;
  --ink: #eefaff;
  --muted: #a9bed1;
  --line: rgba(141, 243, 255, 0.2);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 8%, rgba(30, 98, 255, 0.24), transparent 28%),
    linear-gradient(180deg, #030814 0%, #061225 42%, #040914 100%);
  line-height: 1.55;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 68px);
  border-bottom: 1px solid var(--line);
  background: rgba(3, 8, 20, 0.86);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand img {
  width: 44px;
  height: 44px;
  border: 1px solid rgba(141, 243, 255, 0.28);
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 0 26px rgba(7, 217, 255, 0.22);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 18px;
}

.brand small {
  color: var(--muted);
  font-size: 13px;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.6vw, 32px);
  color: #c9f8ff;
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
}

.top-nav a {
  text-decoration: none;
}

.top-nav a:hover {
  color: var(--cyan);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(330px, 0.78fr);
  gap: clamp(32px, 5vw, 76px);
  align-items: center;
  min-height: calc(100vh - 73px);
  padding: clamp(48px, 7vw, 94px) clamp(18px, 5vw, 76px);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(141, 243, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(141, 243, 255, 0.045) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(180deg, #000 0%, transparent 80%);
}

.hero-copy,
.product-stage,
.section,
.contact-band {
  position: relative;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 14px;
  font-weight: 900;
  text-transform: uppercase;
}

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

h1 {
  max-width: 880px;
  margin-bottom: 22px;
  font-size: clamp(43px, 6.4vw, 86px);
  line-height: 0.94;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.04;
}

h3 {
  margin-bottom: 10px;
  font-size: 21px;
  line-height: 1.2;
}

.lead {
  max-width: 720px;
  color: #d5e6f2;
  font-size: clamp(18px, 2vw, 22px);
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 13px 20px;
  border-radius: 8px;
  font-weight: 900;
  text-decoration: none;
}

.button.primary {
  color: #02111f;
  background: linear-gradient(135deg, var(--cyan), #ffffff);
  box-shadow: 0 14px 36px rgba(7, 217, 255, 0.26);
}

.button.secondary {
  color: var(--cyan-soft);
  border: 1px solid rgba(141, 243, 255, 0.45);
  background: rgba(8, 25, 54, 0.62);
}

.button.light {
  box-shadow: none;
}

.button.secondary.light {
  color: var(--cyan-soft);
  border-color: rgba(141, 243, 255, 0.5);
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.hero-facts span {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: #d8faff;
  background: rgba(8, 25, 54, 0.62);
  font-size: 14px;
  font-weight: 800;
}

.product-stage {
  display: grid;
  gap: 16px;
}

.product-card,
.flow-card,
.demo-panel,
.feature,
.document-showcase article,
.webapp-grid article,
.tool-grid article,
.license-grid article,
.faq details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(13, 39, 78, 0.9), rgba(5, 15, 32, 0.88));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), 0 24px 70px rgba(0, 0, 0, 0.24);
}

.product-card {
  padding: clamp(16px, 3vw, 28px);
}

.product-card img {
  display: block;
  width: 100%;
  border-radius: 8px;
}

.status-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
  padding: 12px 14px;
  border: 1px solid rgba(7, 217, 255, 0.28);
  border-radius: 8px;
  color: #ecfdff;
  background: rgba(3, 8, 20, 0.56);
  font-weight: 800;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #1dffb4;
  box-shadow: 0 0 18px rgba(29, 255, 180, 0.7);
}

.flow-card {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
}

.flow-card div {
  padding: 18px;
  background: rgba(3, 8, 20, 0.34);
}

.flow-label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.flow-card strong {
  font-size: 16px;
}

.section {
  padding: clamp(50px, 7vw, 92px) clamp(18px, 5vw, 76px);
}

.section-heading {
  max-width: 850px;
  margin-bottom: 32px;
}

.demo-band {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.5fr);
  gap: clamp(26px, 5vw, 62px);
  align-items: center;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 75% 20%, rgba(7, 217, 255, 0.15), transparent 30%),
    rgba(8, 25, 54, 0.46);
}

.demo-panel {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px;
}

.demo-number {
  display: grid;
  place-items: center;
  min-width: 86px;
  height: 86px;
  border-radius: 8px;
  color: #02111f;
  background: linear-gradient(135deg, var(--cyan), #fff);
  font-size: 54px;
  font-weight: 900;
}

.demo-panel strong {
  display: block;
  margin-bottom: 6px;
  font-size: 22px;
}

.demo-panel p,
.feature p,
.document-section p,
.document-showcase span,
.webapp-section p,
.webapp-grid p,
.tool-grid p,
.split p,
.license-grid p,
.faq p {
  color: var(--muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.document-section {
  background:
    radial-gradient(circle at 18% 0%, rgba(7, 217, 255, 0.14), transparent 28%),
    linear-gradient(180deg, #040914, #061225);
}

.document-showcase {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.document-showcase article {
  overflow: hidden;
}

.document-showcase img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: top left;
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.document-showcase strong,
.document-showcase span {
  display: block;
  padding-inline: 20px;
}

.document-showcase strong {
  padding-top: 18px;
  color: var(--ink);
  font-size: 20px;
}

.document-showcase span {
  padding-top: 6px;
  padding-bottom: 20px;
}

.webapp-section {
  background:
    radial-gradient(circle at 70% 22%, rgba(7, 217, 255, 0.16), transparent 28%),
    linear-gradient(135deg, #07162d, #040914);
}

.webapp-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.webapp-grid article {
  padding: 24px;
}

.webapp-grid strong {
  display: block;
  margin-bottom: 10px;
  color: var(--ink);
  font-size: 20px;
}

.tools-section {
  background:
    radial-gradient(circle at 82% 20%, rgba(107, 124, 255, 0.16), transparent 28%),
    #061225;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.tool-grid article {
  padding: 24px;
}

.tool-grid img {
  width: 52px;
  height: 52px;
  margin-bottom: 18px;
  border-radius: 8px;
  object-fit: contain;
  background: rgba(3, 8, 20, 0.44);
}

.feature,
.license-grid article {
  padding: 24px;
}

.icon,
.license-grid span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  border: 1px solid rgba(141, 243, 255, 0.34);
  border-radius: 8px;
  color: var(--cyan-soft);
  font-size: 14px;
  font-weight: 900;
  background: rgba(3, 8, 20, 0.62);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(280px, 0.62fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  background:
    radial-gradient(circle at 16% 30%, rgba(107, 124, 255, 0.16), transparent 28%),
    linear-gradient(135deg, #061225, #081d3a);
}

.check-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 16px 18px 16px 48px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(3, 8, 20, 0.48);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 20px;
  width: 13px;
  height: 8px;
  border-left: 3px solid var(--cyan);
  border-bottom: 3px solid var(--cyan);
  transform: rotate(-45deg);
}

.license-section {
  background:
    radial-gradient(circle at 80% 12%, rgba(7, 217, 255, 0.14), transparent 28%),
    #040914;
}

.license-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.faq {
  background: #061225;
}

.faq details {
  max-width: 980px;
  margin-bottom: 12px;
  padding: 18px 22px;
}

.faq summary {
  cursor: pointer;
  color: var(--ink);
  font-size: 18px;
  font-weight: 900;
}

.faq p {
  margin: 14px 0 0;
}

.contact-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: clamp(44px, 6vw, 76px) clamp(18px, 5vw, 76px);
  color: #fff;
  background:
    radial-gradient(circle at 82% 26%, rgba(141, 243, 255, 0.24), transparent 30%),
    linear-gradient(135deg, #09224a, #030814);
}

.contact-band h2 {
  margin-bottom: 10px;
}

.contact-band p {
  max-width: 660px;
  margin-bottom: 0;
  color: #d5e6f2;
}

@media (max-width: 1060px) {
  .feature-grid,
  .tool-grid,
  .webapp-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 920px) {
  .site-header,
  .hero,
  .demo-band,
  .split,
  .contact-band {
    grid-template-columns: 1fr;
  }

  .site-header,
  .top-nav,
  .contact-band {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .document-showcase {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 620px) {
  .site-header {
    position: static;
  }

  .top-nav {
    gap: 10px;
  }

  h1 {
    font-size: 39px;
  }

  h2 {
    font-size: 30px;
  }

  .button,
  .contact-actions {
    width: 100%;
  }

  .flow-card,
  .feature-grid,
  .tool-grid,
  .webapp-grid {
    grid-template-columns: 1fr;
  }

  .demo-panel {
    align-items: flex-start;
    flex-direction: column;
  }
}