:root {
  --bg: #07111f;
  --bg-soft: #0e1a2b;
  --card: rgba(255, 255, 255, 0.08);
  --card-strong: rgba(255, 255, 255, 0.13);
  --text: #f7fbff;
  --muted: #b9c7d8;
  --primary: #66e3ff;
  --primary-strong: #25b7f4;
  --accent: #8ef3c5;
  --border: rgba(255, 255, 255, 0.14);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 10%, rgba(102, 227, 255, 0.2), transparent 28rem),
    radial-gradient(circle at 90% 15%, rgba(142, 243, 197, 0.14), transparent 24rem),
    linear-gradient(135deg, #07111f 0%, #0a1424 42%, #101827 100%);
  line-height: 1.6;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--border);
  background: rgba(7, 17, 31, 0.78);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  color: #06111d;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 10px 30px rgba(102, 227, 255, 0.25);
}

.brand-text {
  display: grid;
  line-height: 1.2;
}

.brand-text small {
  color: var(--muted);
  font-weight: 600;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
  font-weight: 600;
}

.nav-links a:hover {
  color: var(--primary);
}

.hero,
.section {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  min-height: calc(100vh - 76px);
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  align-items: center;
  gap: 54px;
  padding: 72px 0;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 22px;
  font-size: clamp(2.6rem, 7vw, 5.8rem);
  line-height: 0.96;
  letter-spacing: -0.07em;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.lead {
  max-width: 620px;
  color: var(--muted);
  font-size: clamp(1.12rem, 2vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  border: 1px solid var(--border);
}

.button.primary {
  color: #06111d;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-color: transparent;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.05);
}

.button:hover,
.email-link:hover {
  transform: translateY(-1px);
}

.hero-image-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 32px;
  background: var(--card);
  box-shadow: var(--shadow);
}

.hero-image-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(7, 17, 31, 0.42));
  pointer-events: none;
}

.hero-image-card img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.section {
  padding: 82px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

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

.feature-card,
.product-card,
.contact-card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 28px;
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.18);
}

.feature-card {
  padding: 28px;
}

.feature-card p,
.product-card p,
.contact-card p {
  color: var(--muted);
}

.icon {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
  border-radius: 16px;
  background: var(--card-strong);
  font-size: 1.35rem;
}

.product-card {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: clamp(28px, 5vw, 48px);
  background:
    linear-gradient(135deg, rgba(37, 183, 244, 0.16), rgba(142, 243, 197, 0.1)),
    var(--card);
}

.badge {
  flex: 0 0 auto;
  padding: 8px 14px;
  border: 1px solid rgba(102, 227, 255, 0.3);
  border-radius: 999px;
  color: var(--accent);
  background: rgba(142, 243, 197, 0.08);
  font-size: 0.85rem;
  font-weight: 800;
}

.contact-card {
  padding: clamp(28px, 5vw, 54px);
  text-align: center;
}

.email-link {
  display: inline-flex;
  margin-top: 12px;
  padding: 14px 20px;
  border-radius: 16px;
  color: #06111d;
  background: var(--primary);
  font-weight: 800;
  transition: transform 160ms ease;
}

.site-footer {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 38px 0 48px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  text-align: center;
}

@media (max-width: 860px) {
  .nav {
    min-height: 68px;
  }

  .nav-links {
    gap: 14px;
    font-size: 0.92rem;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding: 52px 0;
  }

  .hero-image-card img {
    aspect-ratio: 16 / 10;
    object-position: center 28%;
  }

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

@media (max-width: 560px) {
  .brand-text small,
  .nav-links {
    display: none;
  }

  .product-card {
    flex-direction: column;
  }
}