:root {
  --bg: #071014;
  --bg-soft: #0d191e;
  --panel: #111f24;
  --panel-light: #15272d;
  --text: #f4f8f9;
  --muted: #a7b8bf;
  --line: rgba(255, 255, 255, 0.12);
  --cyan: #42d7ff;
  --amber: #f4a64d;
  --green: #7edaa6;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 32px, var(--max));
  margin: 18px auto 0;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(7, 16, 20, 0.76);
  backdrop-filter: blur(18px);
}

.brand,
.site-nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  color: #061014;
  background: linear-gradient(135deg, var(--cyan), var(--green));
}

.site-nav {
  gap: 24px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
}

.site-nav a:hover {
  color: var(--text);
}

.menu-button {
  display: none;
  width: 42px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  padding: 8px;
}

.menu-button span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--text);
}

.hero {
  position: relative;
  min-height: 760px;
  display: grid;
  align-items: center;
  overflow: hidden;
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(7, 16, 20, 0.98) 0%, rgba(7, 16, 20, 0.84) 38%, rgba(7, 16, 20, 0.24) 74%),
    linear-gradient(180deg, rgba(7, 16, 20, 0.42), rgba(7, 16, 20, 0.95));
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
  padding-top: 88px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(44px, 7vw, 82px);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 21px;
  line-height: 1.25;
}

.hero-copy {
  max-width: 630px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: 19px;
}

.hero-actions,
.hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 20px;
  border-radius: 8px;
  font-weight: 800;
}

.button.primary {
  color: #031014;
  background: var(--cyan);
}

.button.secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.06);
}

.hero-metrics {
  margin: 52px 0 0;
}

.hero-metrics div {
  width: 180px;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
}

.hero-metrics dt {
  font-size: 28px;
  font-weight: 800;
}

.hero-metrics dd {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.section,
.platform,
.contact,
.site-footer {
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
}

.section {
  padding: 96px 0;
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  gap: 54px;
  border-bottom: 1px solid var(--line);
}

.intro p:last-child,
.platform-copy p,
.contact p {
  color: var(--muted);
  font-size: 18px;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 42px;
}

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

.feature-card,
.use-case-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.feature-card {
  min-height: 290px;
  padding: 24px;
}

.card-icon {
  display: inline-flex;
  margin-bottom: 34px;
  color: var(--amber);
  font-weight: 800;
}

.feature-card p,
.use-case-grid p,
.process-list span {
  color: var(--muted);
}

.platform {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(320px, 1.12fr);
  gap: 36px;
  padding: 62px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(66, 215, 255, 0.12), rgba(126, 218, 166, 0.06)),
    var(--bg-soft);
}

.process-list {
  display: grid;
  gap: 14px;
}

.process-list div {
  display: grid;
  gap: 8px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
}

.process-list strong {
  color: var(--text);
  font-size: 18px;
}

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

.use-case-grid article {
  padding: 28px;
}

.contact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 68px 0 86px;
  border-top: 1px solid var(--line);
}

.contact div {
  max-width: 720px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0 38px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

@media (max-width: 900px) {
  .site-header {
    width: calc(100% - 24px);
    margin-top: 12px;
  }

  .menu-button {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(7, 16, 20, 0.96);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 12px;
  }

  .hero {
    min-height: 720px;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(7, 16, 20, 0.98), rgba(7, 16, 20, 0.72)),
      linear-gradient(180deg, rgba(7, 16, 20, 0.36), rgba(7, 16, 20, 0.97));
  }

  .intro,
  .platform,
  .contact {
    grid-template-columns: 1fr;
  }

  .feature-grid,
  .use-case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .platform {
    padding: 34px;
  }

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

@media (max-width: 620px) {
  .brand span:last-child {
    max-width: 148px;
    line-height: 1.1;
  }

  .hero {
    min-height: 760px;
  }

  .hero-content {
    padding-top: 112px;
  }

  h1 {
    font-size: 42px;
  }

  .hero-copy {
    font-size: 17px;
  }

  .button {
    width: 100%;
  }

  .hero-metrics div {
    width: calc(50% - 7px);
  }

  .section {
    padding: 68px 0;
  }

  .feature-grid,
  .use-case-grid {
    grid-template-columns: 1fr;
  }

  .platform {
    width: 100%;
    border-left: 0;
    border-right: 0;
    border-radius: 0;
    padding: 34px 16px;
  }

  .site-footer {
    flex-direction: column;
  }
}