:root {
  --bg: #030813;
  --bg-soft: #071224;
  --panel: rgba(8, 20, 38, 0.72);
  --panel-strong: rgba(9, 24, 46, 0.95);
  --text: #f6f8fc;
  --muted: #9fb2cc;
  --line: rgba(79, 146, 255, 0.20);
  --accent: #17a8ff;
  --accent-2: #5fd2ff;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  --radius: 24px;
  --max: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 20%, rgba(16, 139, 255, 0.12), transparent 28%),
    radial-gradient(circle at 90% 10%, rgba(95, 210, 255, 0.14), transparent 26%),
    radial-gradient(circle at 80% 80%, rgba(16, 139, 255, 0.10), transparent 24%),
    linear-gradient(135deg, #02060d 0%, #041121 45%, #030814 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(to right, transparent 0%, rgba(255,255,255,0.02) 50%, transparent 100%),
    linear-gradient(to bottom, transparent 0%, rgba(255,255,255,0.015) 50%, transparent 100%);
  opacity: .35;
}

.page-shell {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
  position: relative;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 26px 0 18px;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--text);
}

.brand-logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
  filter: drop-shadow(0 0 18px rgba(23, 168, 255, 0.18));
}

.brand-name {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.96rem;
}

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

.hero {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 28px;
  align-items: stretch;
  padding: 48px 0 34px;
}

.hero-copy, .hero-card, .section, .closing-panel {
  position: relative;
}

.eyebrow,
.section-tag,
.card-topline,
.mini-label {
  color: var(--accent-2);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.73rem;
  font-weight: 700;
}

.hero h1 {
  margin: 16px 0 16px;
  font-size: clamp(2.7rem, 6vw, 5.2rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
  max-width: 10ch;
}

.hero-text {
  max-width: 58ch;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.7;
  margin-bottom: 28px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  color: #03111f;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow: 0 10px 30px rgba(23, 168, 255, 0.18);
}

.btn-secondary {
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.03);
}

.hero-card {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(9, 24, 46, 0.86), rgba(5, 14, 28, 0.96));
  border-radius: 30px;
  box-shadow: var(--shadow);
  overflow: hidden;
  min-height: 100%;
}

.signal-line {
  height: 3px;
  width: 100%;
  background: linear-gradient(90deg, transparent 0%, var(--accent) 30%, var(--accent-2) 70%, transparent 100%);
  opacity: 0.95;
}

.hero-card-inner {
  padding: 28px;
}

.hero-card h2 {
  font-size: 2.8rem;
  margin: 14px 0 8px;
  letter-spacing: -0.05em;
}

.hero-card p {
  margin: 0 0 18px;
  color: var(--text);
  font-size: 1.1rem;
}

.hero-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}

.section {
  padding: 48px 0;
}

.intro {
  max-width: 900px;
}

.section h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
  margin: 12px 0 16px;
  max-width: 14ch;
}

.intro p,
.section-head p,
.product-card p,
.pillar-card p {
  color: var(--muted);
  line-height: 1.75;
  font-size: 1.02rem;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
  margin-bottom: 20px;
}

.section-head h2 { margin-bottom: 0; }
.section-head p { max-width: 42ch; }

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

.product-card,
.pillar-card {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--radius);
  padding: 24px;
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}

.product-card.featured {
  background: linear-gradient(180deg, rgba(10, 30, 58, 0.95), rgba(5, 18, 34, 0.92));
}

.product-card.muted {
  background: rgba(255,255,255,0.035);
}

.product-card h3,
.pillar-card h3 {
  margin: 14px 0 8px;
  font-size: 1.5rem;
  letter-spacing: -0.04em;
}

.card-subtitle {
  color: var(--text);
  opacity: 0.88;
  margin-bottom: 14px;
}

.three {
  grid-template-columns: repeat(3, 1fr);
}

.closing {
  padding-bottom: 72px;
}

.closing-panel {
  border: 1px solid var(--line);
  border-radius: 30px;
  background:
    radial-gradient(circle at 80% 20%, rgba(95, 210, 255, 0.12), transparent 25%),
    linear-gradient(180deg, rgba(9, 24, 46, 0.88), rgba(5, 14, 28, 0.96));
  padding: 34px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  box-shadow: var(--shadow);
}

.closing-text {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  letter-spacing: -0.04em;
  font-weight: 700;
}

.site-footer {
  border-top: 1px solid rgba(255,255,255,0.08);
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 24px 0 34px;
  font-size: 0.95rem;
}

@media (max-width: 980px) {
  .hero,
  .cards-grid,
  .three,
  .section-head,
  .closing-panel {
    grid-template-columns: 1fr;
  }

  .hero {
    display: grid;
  }

  .section-head,
  .closing-panel,
  .site-footer {
    display: grid;
  }

  .section-head h2 {
    max-width: 100%;
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(calc(100% - 24px), var(--max));
  }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav {
    gap: 14px;
    flex-wrap: wrap;
  }

  .hero {
    padding-top: 28px;
  }

  .hero h1 {
    max-width: 100%;
  }

  .hero-card h2 {
    font-size: 2.2rem;
  }

  .closing-panel {
    padding: 26px 20px;
  }
}