:root {
  --ink: #e9f4ff;
  --muted: #9eb7c8;
  --panel: rgba(7, 21, 32, 0.72);
  --line: rgba(151, 210, 238, 0.28);
  --cyan: #18c2ee;
  --green: #74f2b2;
  --amber: #f2c46d;
  --white: #ffffff;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 22% 20%, rgba(24, 194, 238, 0.22), transparent 30%),
    radial-gradient(circle at 78% 12%, rgba(116, 242, 178, 0.16), transparent 24%),
    linear-gradient(135deg, #03131f 0%, #061a29 43%, #07111d 100%);
  overflow-x: hidden;
  letter-spacing: 0;
}

#scanfield {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.topbar,
main,
.footer {
  position: relative;
  z-index: 1;
}

.topbar {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 14px clamp(18px, 4vw, 64px);
  border-bottom: 1px solid rgba(169, 220, 244, 0.16);
  background: rgba(3, 15, 25, 0.78);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 216px;
  color: var(--white);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(24, 194, 238, 0.24), rgba(116, 242, 178, 0.12));
  color: var(--green);
  font-size: 0.84rem;
  font-weight: 800;
}

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

.brand strong {
  font-size: 1rem;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.72rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 34px);
}

.nav a,
.login-trigger {
  color: var(--ink);
  font: inherit;
  font-weight: 700;
  text-decoration: none;
}

.nav a {
  color: #cce5f3;
  font-size: 0.92rem;
}

.login {
  position: relative;
  display: flex;
  justify-content: flex-end;
  min-width: 216px;
}

.login-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid rgba(24, 194, 238, 0.42);
  border-radius: 8px;
  background: rgba(12, 42, 61, 0.7);
  cursor: pointer;
}

.login-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 10;
  display: none;
  width: 230px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(5, 19, 31, 0.96);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.36);
}

.login-menu.open {
  display: grid;
  gap: 6px;
}

.login-menu a,
.login-menu span {
  display: block;
  padding: 12px;
  border-radius: 6px;
  color: var(--ink);
  text-decoration: none;
}

.login-menu a {
  background: rgba(24, 194, 238, 0.12);
  font-weight: 800;
}

.login-menu a:hover,
.login-menu a:focus-visible,
.nav a:hover,
.nav a:focus-visible,
.primary-action:hover,
.primary-action:focus-visible,
.secondary-action:hover,
.secondary-action:focus-visible,
.login-trigger:hover,
.login-trigger:focus-visible,
.slide-control:hover,
.slide-control:focus-visible {
  outline: none;
  border-color: rgba(116, 242, 178, 0.68);
  box-shadow: 0 0 0 3px rgba(24, 194, 238, 0.16);
}

.login-menu span {
  color: #7f9aab;
}

.hero {
  display: grid;
  min-height: 92vh;
  padding: 150px clamp(22px, 6vw, 90px) 78px;
  align-content: center;
}

.hero-copy {
  max-width: 880px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

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

h1 {
  max-width: 780px;
  margin-bottom: 20px;
  font-size: clamp(4rem, 10vw, 9.4rem);
  line-height: 0.9;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 760px;
  margin-bottom: 32px;
  color: #c4d9e8;
  font-size: clamp(1.06rem, 2vw, 1.38rem);
  line-height: 1.65;
}

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

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
}

.primary-action {
  color: #021421;
  background: linear-gradient(135deg, var(--cyan), var(--green));
}

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

.hero-telemetry {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  width: min(920px, 100%);
  margin-top: 72px;
}

.hero-telemetry div {
  min-height: 108px;
  padding: 18px;
  border: 1px solid rgba(169, 220, 244, 0.22);
  border-radius: 8px;
  background: rgba(6, 21, 33, 0.62);
}

.hero-telemetry span,
.metric span,
.screen-note,
.module-grid span,
.flow-line span {
  color: var(--muted);
}

.hero-telemetry strong {
  display: block;
  margin-top: 14px;
  color: var(--white);
  font-size: 1.1rem;
}

.platform,
.workflow,
.modules {
  padding: 90px clamp(22px, 6vw, 90px);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(260px, 440px) minmax(0, 1fr);
  gap: 30px;
  align-items: end;
  margin-bottom: 28px;
}

.section-heading.compact {
  display: block;
  max-width: 760px;
}

h2 {
  margin-bottom: 0;
  color: var(--white);
  font-size: clamp(2rem, 4vw, 4.3rem);
  line-height: 1.04;
  letter-spacing: 0;
}

.screen-stage {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 44px;
  gap: 14px;
  align-items: center;
}

.screen-slider {
  position: relative;
  min-height: 430px;
  overflow: hidden;
  border: 1px solid rgba(169, 220, 244, 0.22);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(8, 28, 43, 0.94), rgba(3, 14, 24, 0.88));
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.28);
}

.product-screen {
  position: absolute;
  inset: 0;
  display: grid;
  gap: 24px;
  align-content: center;
  padding: clamp(20px, 4vw, 48px);
  opacity: 0;
  transform: translateX(7%);
  transition: opacity 320ms ease, transform 320ms ease;
}

.product-screen.active {
  opacity: 1;
  transform: translateX(0);
}

.screen-top {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: var(--white);
  font-weight: 800;
}

.screen-top strong {
  color: var(--green);
}

.screen-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: 14px;
}

.metric,
.timeline,
.doc-stack span,
.screen-note {
  border: 1px solid rgba(169, 220, 244, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
}

.metric {
  min-height: 132px;
  padding: 18px;
}

.metric.tall {
  grid-row: span 2;
  min-height: 278px;
}

.metric strong {
  display: block;
  margin-top: 12px;
  color: var(--white);
  font-size: clamp(2.2rem, 5vw, 5.4rem);
}

.metric small {
  color: var(--amber);
}

.timeline {
  grid-column: span 2;
  display: flex;
  align-items: flex-end;
  gap: 14px;
  min-height: 132px;
  padding: 18px;
}

.timeline i {
  display: block;
  width: 100%;
  height: var(--level);
  min-height: 18px;
  border-radius: 5px 5px 0 0;
  background: linear-gradient(180deg, var(--cyan), rgba(116, 242, 178, 0.36));
}

.weld-map {
  display: grid;
  grid-template-columns: repeat(4, minmax(80px, 1fr));
  gap: 14px;
}

.weld-map span {
  aspect-ratio: 1.4;
  border: 1px solid rgba(169, 220, 244, 0.2);
  border-radius: 8px;
  background:
    linear-gradient(90deg, transparent 48%, rgba(24, 194, 238, 0.55) 49%, transparent 51%),
    linear-gradient(rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
}

.screen-note {
  padding: 18px;
  line-height: 1.7;
}

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

.doc-stack span {
  padding: 22px 24px;
  color: var(--ink);
  font-weight: 700;
}

.slide-control {
  width: 44px;
  height: 78px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.06);
  font-size: 2rem;
  cursor: pointer;
}

.flow-line,
.module-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 30px;
}

.flow-line div,
.module-grid article {
  min-height: 170px;
  padding: 20px;
  border: 1px solid rgba(169, 220, 244, 0.2);
  border-radius: 8px;
  background: rgba(5, 20, 33, 0.62);
}

.flow-line strong {
  display: block;
  margin-bottom: 44px;
  color: var(--cyan);
  font-size: 1.8rem;
}

.module-grid article {
  display: grid;
  align-content: start;
  gap: 16px;
}

.module-grid strong {
  color: var(--white);
  font-size: 1.08rem;
}

.module-grid span {
  line-height: 1.62;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 28px clamp(22px, 6vw, 90px);
  border-top: 1px solid rgba(169, 220, 244, 0.16);
  color: var(--muted);
}

@media (max-width: 860px) {
  .topbar {
    position: sticky;
    flex-wrap: wrap;
    min-height: auto;
  }

  .brand,
  .login {
    min-width: 0;
  }

  .nav {
    order: 3;
    width: 100%;
    justify-content: space-between;
  }

  .hero {
    min-height: auto;
    padding-top: 58px;
  }

  .hero-telemetry,
  .section-heading,
  .screen-grid,
  .flow-line,
  .module-grid {
    grid-template-columns: 1fr;
  }

  .screen-stage {
    grid-template-columns: 1fr;
  }

  .slide-control {
    display: none;
  }

  .screen-slider {
    min-height: 520px;
  }

  .timeline {
    grid-column: auto;
  }

  .weld-map {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}