:root {
  color-scheme: dark;
  --bg: #101010;
  --surface: #181818;
  --surface-soft: #202020;
  --text: #f7f4ee;
  --muted: #c9c2b5;
  --line: rgba(255, 255, 255, 0.14);
  --cyan: #45d8ff;
  --lime: #b6ff63;
  --coral: #ff6f61;
  --magenta: #ff4bc8;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 12%, rgba(69, 216, 255, 0.18), transparent 25rem),
    radial-gradient(circle at 88% 22%, rgba(255, 111, 97, 0.15), transparent 24rem),
    var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1rem 0;
  backdrop-filter: blur(18px);
}

.brand,
nav,
.hero-actions,
.product-list,
footer {
  display: flex;
  align-items: center;
}

.brand {
  gap: 0.7rem;
  text-decoration: none;
  font-weight: 800;
}

.brand-mark {
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 50%;
  background: conic-gradient(from 30deg, var(--cyan), var(--lime), var(--coral), var(--magenta), var(--cyan));
  box-shadow: 0 0 24px rgba(69, 216, 255, 0.7);
}

nav {
  gap: clamp(0.8rem, 2vw, 1.6rem);
  color: var(--muted);
  font-size: 0.94rem;
}

nav a {
  text-decoration: none;
}

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

main {
  overflow: hidden;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 34rem);
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
  width: min(1120px, calc(100% - 2rem));
  min-height: calc(100svh - 4.6rem);
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 6.5rem) 0;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.eyebrow,
.section-kicker {
  margin: 0 0 0.8rem;
  color: var(--lime);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 10ch;
  margin-bottom: 1rem;
  font-size: clamp(4.2rem, 13vw, 9.5rem);
  line-height: 0.86;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(2rem, 5vw, 4.25rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 0.6rem;
  font-size: 1.2rem;
}

.hero p,
.intro > p,
.product-band p,
.contact p {
  max-width: 43rem;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.2rem);
}

.hero-actions {
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 0.45rem;
  padding: 0.78rem 1rem;
  text-decoration: none;
  font-weight: 800;
}

.button.primary {
  background: var(--text);
  color: #111;
}

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

.hero-visual {
  position: relative;
  min-height: 34rem;
}

.beam {
  position: absolute;
  left: 12%;
  right: 4%;
  height: 5.5rem;
  border-radius: 999px;
  filter: blur(0.2px);
  transform: rotate(-18deg);
}

.beam-one {
  top: 6rem;
  background: linear-gradient(90deg, rgba(69, 216, 255, 0), var(--cyan), rgba(69, 216, 255, 0));
  box-shadow: 0 0 56px rgba(69, 216, 255, 0.55);
}

.beam-two {
  top: 14rem;
  background: linear-gradient(90deg, rgba(255, 75, 200, 0), var(--magenta), rgba(255, 75, 200, 0));
  box-shadow: 0 0 56px rgba(255, 75, 200, 0.5);
}

.beam-three {
  top: 22rem;
  background: linear-gradient(90deg, rgba(182, 255, 99, 0), var(--lime), rgba(255, 111, 97, 0.85));
  box-shadow: 0 0 56px rgba(182, 255, 99, 0.45);
}

.device {
  position: absolute;
  right: 12%;
  bottom: 2rem;
  width: min(17rem, 56vw);
  aspect-ratio: 0.52;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 2rem;
  background: linear-gradient(145deg, #2b2b2b, #0e0e0e);
  box-shadow: var(--shadow);
  padding: 0.85rem;
}

.device-screen {
  display: grid;
  grid-template-rows: 1.45fr 0.8fr 0.8fr 0.8fr;
  gap: 0.7rem;
  height: 100%;
  border-radius: 1.35rem;
  background: #080808;
  padding: 1rem;
}

.device-screen img {
  width: 100%;
  height: 100%;
  min-height: 0;
  border-radius: 0.75rem;
  object-fit: contain;
  background: radial-gradient(circle at 50% 45%, rgba(69, 216, 255, 0.2), transparent 62%);
}

.device-screen span {
  border-radius: 0.7rem;
  background: linear-gradient(135deg, var(--cyan), var(--magenta));
}

.device-screen span:nth-child(3) {
  background: linear-gradient(135deg, var(--lime), var(--cyan));
}

.device-screen span:nth-child(4) {
  background: linear-gradient(135deg, var(--coral), var(--lime));
}

.section {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 6rem) 0;
}

.intro,
.product-band,
.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(18rem, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
  border-top: 1px solid var(--line);
}

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

.section-heading {
  grid-column: 1 / -1;
  max-width: 47rem;
  margin-bottom: 0.5rem;
}

article {
  min-height: 14rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: linear-gradient(180deg, var(--surface-soft), var(--surface));
  padding: clamp(1.1rem, 3vw, 1.5rem);
}

article p {
  color: var(--muted);
}

.product-list {
  flex-wrap: wrap;
  gap: 0.75rem;
}

.product-list span {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  padding: 0.7rem 0.9rem;
  color: var(--muted);
  font-weight: 700;
}

.contact {
  align-items: end;
}

.contact .button {
  justify-self: end;
}

footer {
  justify-content: space-between;
  gap: 1rem;
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  border-top: 1px solid var(--line);
  padding: 1.4rem 0 2rem;
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
  }

  nav {
    justify-content: flex-end;
    flex-wrap: wrap;
  }

  .hero,
  .intro,
  .product-band,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 2rem;
  }

  .hero-visual {
    order: -1;
    min-height: 23rem;
  }

  .device {
    right: 4%;
    width: min(13rem, 52vw);
    border-radius: 1.45rem;
  }

  .beam {
    left: 0;
    right: 0;
    height: 4rem;
  }

  .beam-one {
    top: 4rem;
  }

  .beam-two {
    top: 10rem;
  }

  .beam-three {
    top: 16rem;
  }

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

  article {
    min-height: 11rem;
  }

  .contact .button {
    justify-self: start;
  }

  footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .site-header {
    position: static;
    flex-direction: column;
  }

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

  h1 {
    font-size: clamp(3.6rem, 19vw, 5rem);
  }

  .button {
    width: 100%;
  }
}