:root {
  --bg: #0a1220;
  --bg-elev: #0f1b2e;
  --bg-card: #101d33;
  --border: rgba(148, 178, 214, 0.14);
  --text: #eaf1fb;
  --text-dim: #9fb3cc;
  --text-faint: #6f85a3;
  --accent: #ffb000;
  --accent-light: #ffd166;
  --accent-dim: #b97f22;
  --brand-navy: #0a2540;
  --sky: #4fc3f7;
  --radius: 14px;
  --maxw: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", Inter, Roboto, Arial, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

img, svg { max-width: 100%; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header.site {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 18, 32, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--text);
  letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; }
.brand .brand-text .accent { color: var(--accent); }
nav.primary { display: flex; gap: 28px; }
nav.primary a {
  color: var(--text-dim);
  font-size: 0.95rem;
  font-weight: 500;
}
nav.primary a:hover { color: var(--text); text-decoration: none; }

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 84px;
  background:
    radial-gradient(ellipse 1000px 600px at 78% 30%, rgba(79, 195, 247, 0.20), transparent 65%),
    radial-gradient(ellipse 700px 400px at 10% 10%, rgba(242, 169, 59, 0.12), transparent 55%);
  border-bottom: 1px solid var(--border);
}
.hero .hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right center;
  z-index: 0;
  pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; }
@media (prefers-reduced-motion: reduce) {
  .hero .hero-bg { display: none; }
}
.hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(2.1rem, 4.4vw, 3.4rem);
  line-height: 1.12;
  margin: 0 0 20px;
  max-width: 780px;
  letter-spacing: -0.01em;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent);
}
.hero p.lead {
  font-size: 1.15rem;
  color: var(--text-dim);
  max-width: 620px;
  margin: 0 0 34px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn:hover { text-decoration: none; }
.btn-primary {
  background: var(--accent);
  color: #1a1206;
}
.btn-primary:hover { background: #ffbb55; }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--text-dim); background: rgba(255,255,255,0.03); }

/* Section headings */
section { padding: 84px 0; }
section.tight { padding: 64px 0; }
.section-head { max-width: 640px; margin: 0 0 48px; }
.section-head .kicker {
  color: var(--sky);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
  display: block;
}
.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  margin: 0 0 12px;
  letter-spacing: -0.01em;
}
.section-head p { color: var(--text-dim); margin: 0; }

/* Product cards */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 22px;
}
.product-card {
  background: linear-gradient(160deg, var(--bg-card), var(--bg-elev));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 26px 26px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.15s, transform 0.15s;
}
.product-card:hover {
  border-color: rgba(148, 178, 214, 0.3);
  transform: translateY(-2px);
}
.product-card .mark {
  width: 44px;
  height: 44px;
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  margin-bottom: 18px;
}
.mark-heliops { background: rgba(79, 195, 247, 0.14); color: var(--sky); }
.mark-strom { background: rgba(242, 169, 59, 0.14); color: var(--accent); }
.mark-siteflights { background: rgba(120, 190, 130, 0.14); color: #7fd08a; }

.product-card h3 { font-size: 1.25rem; margin: 0 0 4px; }
.product-card .tagline {
  color: var(--text-faint);
  font-size: 0.86rem;
  font-weight: 600;
  margin: 0 0 14px;
}
.product-card p.desc { color: var(--text-dim); font-size: 0.94rem; margin: 0 0 18px; flex-grow: 1; }
.product-card ul.features {
  list-style: none;
  padding: 0;
  margin: 0 0 22px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.product-card ul.features li {
  font-size: 0.86rem;
  color: var(--text-dim);
  padding-left: 18px;
  position: relative;
}
.product-card ul.features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.product-card .card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}
.product-card .card-footer a { font-weight: 600; font-size: 0.92rem; }
.product-card .card-footer a:hover { text-decoration: none; color: #ffbb55; }

/* About */
.about-body {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 760px) { .about-body { grid-template-columns: 1fr; } }
.about-body p { color: var(--text-dim); font-size: 1.02rem; }
.stat-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  border-left: 2px solid var(--border);
  padding-left: 22px;
}
.stat-list .stat b {
  display: block;
  font-size: 1.5rem;
  color: var(--text);
}
.stat-list .stat span {
  color: var(--text-faint);
  font-size: 0.88rem;
}

/* Contact / CTA */
.cta {
  background: linear-gradient(160deg, rgba(242,169,59,0.08), rgba(79,195,247,0.06));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.cta .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding: 56px 24px;
}
.cta h2 { margin: 0 0 6px; font-size: 1.5rem; }
.cta p { margin: 0; color: var(--text-dim); }

/* Footer */
footer.site {
  padding: 40px 0;
}
footer.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
footer.site .brand { font-size: 1.05rem; }
footer.site .meta { color: var(--text-faint); font-size: 0.84rem; }
footer.site .meta a { color: var(--text-faint); }