:root {
  --ink: #071114;
  --muted: #5f6f72;
  --panel: #f6f8f7;
  --line: rgba(7, 17, 20, 0.12);
  --cyan: #7ce7ef;
  --teal: #0f8d93;
  --lime: #d7ff68;
  --white: #ffffff;
  --dark: #071114;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

img {
  max-width: 100%;
  display: block;
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  width: 100%;
  height: 68px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  padding: 0 clamp(18px, 4vw, 56px);
  color: var(--white);
  background: linear-gradient(180deg, rgba(5, 12, 14, 0.76), rgba(5, 12, 14, 0));
}

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

.brand {
  gap: 10px;
  font-weight: 760;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 50%;
  background:
    radial-gradient(circle at center, var(--cyan) 0 4px, transparent 5px),
    conic-gradient(from 120deg, transparent 0 24%, var(--cyan) 25% 40%, transparent 41% 100%);
  box-shadow: 0 0 18px rgba(124, 231, 239, 0.55);
}

.nav-links {
  gap: 8px;
  padding: 6px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(16px);
}

.nav-links a,
.nav-action {
  min-height: 36px;
  padding: 9px 14px;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 700;
}

.nav-links a:hover {
  background: rgba(255, 255, 255, 0.14);
}

.nav-action {
  justify-self: end;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(16px);
}

.hero {
  position: relative;
  min-height: 88svh;
  overflow: hidden;
  color: var(--white);
  background: #dfe3e1;
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 54% center;
}

.hero-scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(4, 12, 14, 0.9), rgba(4, 12, 14, 0.45) 36%, rgba(4, 12, 14, 0.02) 72%),
    linear-gradient(180deg, rgba(4, 12, 14, 0.18), rgba(4, 12, 14, 0.22));
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(680px, calc(100% - 36px));
  padding: 19svh 0 12svh clamp(18px, 6vw, 76px);
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: var(--cyan);
}

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(3.5rem, 8vw, 8.5rem);
  line-height: 0.88;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(2rem, 4.4vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.08rem;
}

p {
  color: var(--muted);
  line-height: 1.65;
}

.hero-copy {
  max-width: 520px;
  margin-bottom: 32px;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1.1rem, 2vw, 1.45rem);
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 18px;
  border-radius: 999px;
  font-weight: 820;
}

.button.primary {
  color: #031012;
  background: var(--cyan);
  box-shadow: 0 12px 32px rgba(124, 231, 239, 0.26);
}

.button.secondary {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.08);
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.metric-strip div {
  min-height: 132px;
  padding: 28px clamp(18px, 3vw, 42px);
  border-right: 1px solid var(--line);
}

.metric-strip div:last-child {
  border-right: 0;
}

.metric-strip strong {
  display: block;
  margin-bottom: 8px;
  font-size: clamp(2rem, 3.4vw, 3.3rem);
  line-height: 1;
}

.metric-strip span {
  color: var(--muted);
  font-weight: 700;
}

.section,
.feature-band,
.comparison-band,
.demo-section {
  padding: clamp(72px, 9vw, 132px) clamp(18px, 5vw, 72px);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.7fr);
  gap: clamp(28px, 6vw, 96px);
  align-items: end;
}

.intro-grid p {
  font-size: 1.08rem;
}

.feature-band {
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(124, 231, 239, 0.18), transparent 34%),
    linear-gradient(180deg, #071114, #0a1b1e);
}

.feature-band p {
  color: rgba(255, 255, 255, 0.72);
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  align-items: end;
  margin-bottom: 40px;
}

.section-heading h2 {
  max-width: 760px;
}

.section-heading.compact {
  display: block;
  max-width: 900px;
}

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

.feature-card {
  min-height: 270px;
  padding: 26px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.055);
}

.card-number {
  display: inline-flex;
  margin-bottom: 56px;
  color: var(--cyan);
  font-weight: 900;
}

.tech-section {
  background: var(--panel);
}

.tech-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 1fr);
  gap: clamp(30px, 6vw, 96px);
  align-items: center;
}

.signal-stack {
  display: grid;
  gap: 12px;
}

.signal-stack div,
.spec-item,
.comparison-list div,
.market-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.signal-stack div {
  padding: 24px;
}

.signal-stack span,
.spec-item span,
.comparison-list span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.signal-stack strong,
.spec-item strong,
.comparison-list strong {
  display: block;
  font-size: clamp(1.25rem, 2vw, 2rem);
  line-height: 1.1;
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.spec-item {
  min-height: 170px;
  padding: 24px;
}

.comparison-band {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(320px, 1fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: center;
  color: var(--white);
  background: #0b2021;
}

.comparison-band p {
  color: rgba(255, 255, 255, 0.72);
}

.comparison-list {
  display: grid;
  gap: 12px;
}

.comparison-list div {
  padding: 24px;
  color: var(--ink);
}

.market-section {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(320px, 1fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: start;
  background: var(--panel);
}

.market-grid {
  display: grid;
  gap: 14px;
}

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

.market-grid p {
  margin-bottom: 0;
}

.demo-section {
  min-height: 430px;
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(7, 17, 20, 0.92), rgba(7, 17, 20, 0.58)),
    url("assets/hero.png") center 58% / cover;
}

.demo-section h2 {
  max-width: 900px;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 26px clamp(18px, 5vw, 72px);
  color: rgba(255, 255, 255, 0.72);
  background: var(--dark);
  font-size: 0.92rem;
}

@media (max-width: 950px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav-links {
    display: none;
  }

  .intro-grid,
  .tech-panel,
  .comparison-band,
  .market-section {
    grid-template-columns: 1fr;
  }

  .metric-strip,
  .system-grid,
  .spec-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .site-header {
    height: 62px;
  }

  .brand span:last-child {
    display: none;
  }

  .nav-action {
    min-height: 34px;
    padding: 8px 12px;
  }

  .hero {
    min-height: 86svh;
  }

  .hero-image {
    object-position: 58% center;
  }

  .hero-scrim {
    background:
      linear-gradient(90deg, rgba(4, 12, 14, 0.9), rgba(4, 12, 14, 0.32) 64%, rgba(4, 12, 14, 0.08)),
      linear-gradient(180deg, rgba(4, 12, 14, 0.2), rgba(4, 12, 14, 0.42));
  }

  .hero-content {
    width: min(430px, calc(100% - 32px));
    padding-top: 18svh;
    padding-left: 18px;
  }

  .metric-strip,
  .system-grid,
  .spec-grid {
    grid-template-columns: 1fr;
  }

  .metric-strip div {
    min-height: 108px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .section-heading {
    display: block;
  }

  footer {
    display: grid;
  }
}