:root {
  --bg: #071018;
  --bg-2: #0c1a24;
  --ink: #e8f1f4;
  --muted: #9bb0ba;
  --line: #1d3642;
  --accent: #3ee0c3;
  --accent-2: #7cb4ff;
  --warn: #ffb45a;
  --fs-label: 0.6875rem;
  --fs-caption: 0.75rem;
  --fs-small: 0.8125rem;
  --fs-body: 0.9375rem;
  --lh-tight: 1.22;
  --lh-snug: 1.35;
  --lh-body: 1.65;
}

* { box-sizing: border-box; }
html {
  margin: 0;
  padding: 0;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
body {
  margin: 0;
  padding: 0;
  font-family: "Be Vietnam Pro", system-ui, sans-serif;
  font-size: var(--fs-body);
  font-weight: 400;
  background: var(--bg);
  color: var(--ink);
  line-height: var(--lh-body);
  letter-spacing: 0.01em;
  min-height: 100vh;
}

.grid-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(900px 480px at 12% -10%, rgba(62, 224, 195, 0.16), transparent 55%),
    radial-gradient(700px 420px at 100% 0%, rgba(124, 180, 255, 0.12), transparent 50%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}
.grid-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, black, transparent 80%);
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 {
  font-weight: 600;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 6vw;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(7, 16, 24, 0.86);
  backdrop-filter: blur(12px);
  z-index: 10;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.brand:hover { text-decoration: none; }
.mark {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #041016;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0;
}
.nav nav { display: flex; align-items: center; gap: 1.1rem; }
.nav nav a {
  color: var(--muted);
  font-size: var(--fs-small);
  font-weight: 500;
  letter-spacing: 0.02em;
}
.nav nav a:hover { color: var(--ink); text-decoration: none; }

.hero, .products, .split, .contact, footer {
  padding-left: 6vw;
  padding-right: 6vw;
}
.hero {
  padding-top: 4.25rem;
  padding-bottom: 3.75rem;
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 1fr);
  gap: 3rem;
  align-items: center;
}
.hero-copy { max-width: 36rem; }
.hero-art {
  margin: 0;
  position: relative;
}
.hero-art::before {
  content: "";
  position: absolute;
  inset: 8% 6%;
  background: radial-gradient(circle, rgba(62, 224, 195, 0.28), transparent 68%);
  filter: blur(28px);
  z-index: 0;
}
.hero-art img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: auto;
  display: block;
  border-radius: 22px;
  border: 1px solid var(--line);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.45);
}
.hero-art figcaption {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.5rem;
  margin-top: 0.8rem;
  color: var(--muted);
  font-size: var(--fs-caption);
  line-height: 1.45;
  letter-spacing: 0.04em;
  font-family: "IBM Plex Mono", monospace;
}
.hero-art figcaption span:not(.dot) {
  color: var(--accent);
  font-weight: 500;
}
.hero-art .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent-2);
}
.eyebrow {
  font-family: "IBM Plex Mono", monospace;
  color: var(--accent);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: var(--fs-label);
  font-weight: 500;
  line-height: 1.4;
  margin: 0 0 0.85rem;
}
h1 {
  font-size: clamp(1.85rem, 1.15rem + 2.8vw, 2.7rem);
  line-height: var(--lh-tight);
  margin: 0 0 1.05rem;
}
.lead {
  color: var(--muted);
  font-size: clamp(0.95rem, 0.9rem + 0.28vw, 1.0625rem);
  line-height: 1.7;
  letter-spacing: 0.005em;
  max-width: 38rem;
  margin: 0;
}
.cta { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.75rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.62rem 1.05rem;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.3;
  border: 1px solid transparent;
}
.btn:hover { text-decoration: none; }
.btn-primary {
  background: var(--accent);
  color: #041016;
}
.btn-primary:hover { filter: brightness(1.06); }
.btn-ghost {
  border-color: var(--line);
  color: var(--ink);
  background: rgba(255,255,255,0.03);
}
.btn-ghost:hover { border-color: var(--accent); }
.nav .btn {
  padding: 0.42rem 0.85rem;
  font-size: 0.75rem;
}

.products { padding-bottom: 3.75rem; }
.products h2, .split h2, .contact h2 {
  font-size: clamp(1.2rem, 1rem + 0.9vw, 1.5rem);
  line-height: var(--lh-snug);
  margin: 0 0 1.2rem;
}
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}
.card {
  background: rgba(8, 22, 31, 0.8);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.2rem 1.15rem 1.1rem;
}
.tag {
  font-family: "IBM Plex Mono", monospace;
  font-size: var(--fs-label);
  font-weight: 500;
  color: var(--warn);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.card h3 {
  margin: 0.4rem 0 0.5rem;
  font-size: 1.05rem;
  line-height: 1.3;
}
.card p {
  color: var(--muted);
  margin: 0 0 0.95rem;
  font-size: 0.875rem;
  line-height: 1.65;
}
.card a {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  overflow-wrap: anywhere;
}

.split {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  padding-bottom: 3.75rem;
  align-items: start;
}
.split p {
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin: 0;
}
.facts { list-style: none; margin: 0; padding: 0; }
.facts li {
  border-top: 1px solid var(--line);
  padding: 0.85rem 0;
  color: var(--muted);
  font-size: 0.875rem;
  line-height: 1.5;
}
.facts strong {
  display: block;
  color: var(--ink);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-family: "IBM Plex Mono", monospace;
  margin-bottom: 0.2rem;
}

.contact { padding-bottom: 3.75rem; }
.contact p {
  color: var(--muted);
  font-size: 0.9375rem;
  margin: 0 0 0.85rem;
}
.mail {
  display: inline-block;
  font-size: clamp(1rem, 0.85rem + 1.1vw, 1.2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-top: 1.1rem;
  padding-bottom: 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: var(--fs-caption);
  letter-spacing: 0.02em;
}

@media (max-width: 800px) {
  .nav nav a:not(.btn) { display: none; }
  .split { grid-template-columns: 1fr; gap: 1.5rem; }
  .hero {
    grid-template-columns: 1fr;
    gap: 1.75rem;
    padding-top: 2.5rem;
    padding-bottom: 2.75rem;
  }
  h1 br { display: none; }
  .hero-copy { max-width: none; }
  .products h2, .split h2, .contact h2 { margin-bottom: 1rem; }
}

@media (max-width: 540px) {
  body { font-size: 0.9rem; }
  .nav { padding: 0.75rem 5vw; }
  .brand { font-size: 0.875rem; letter-spacing: 0.03em; }
  .mark { width: 28px; height: 28px; font-size: 0.75rem; }
  .hero, .products, .split, .contact, footer {
    padding-left: 5vw;
    padding-right: 5vw;
  }
  h1 {
    font-size: clamp(1.7rem, 6.4vw, 2rem);
    line-height: 1.24;
    margin-bottom: 0.9rem;
  }
  .lead { font-size: 0.9375rem; line-height: 1.68; }
  .cta {
    flex-direction: column;
    align-items: stretch;
    margin-top: 1.4rem;
  }
  .cta .btn {
    width: 100%;
    padding: 0.72rem 1rem;
    font-size: 0.8125rem;
  }
  .card { padding: 1.05rem 1rem 1rem; }
  .card h3 { font-size: 1rem; }
  .mail { font-size: 0.98rem; }
  footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.45rem;
  }
}