:root {
  --bg: #07111d;
  --bg-soft: #0c1a2d;
  --panel: rgba(13, 27, 45, 0.72);
  --panel-border: rgba(255, 255, 255, 0.12);
  --text: #eaf3ff;
  --muted: #a7bedc;
  --accent: #8c5cff;
  --accent-2: #20d3ff;
  --accent-3: #f16fff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --radius: 24px;
  --container: min(1180px, calc(100% - 40px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, sans-serif;
  background:
    radial-gradient(circle at top, rgba(64, 116, 255, 0.18), transparent 32%),
    radial-gradient(circle at 80% 20%, rgba(143, 92, 255, 0.18), transparent 26%),
    linear-gradient(180deg, #06101a 0%, #081422 36%, #08111d 100%);
  color: var(--text);
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { width: var(--container); margin: 0 auto; }
.glass {
  background: var(--panel);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow);
}
.site-shell { overflow: hidden; }
.topbar {
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: var(--container);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-radius: 18px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  font-family: 'Space Grotesk', sans-serif; font-weight: 700;
}
.brand strong { display: block; font-size: 0.97rem; }
.brand small { display: block; color: var(--muted); }
.nav { display: flex; gap: 20px; }
.nav a { color: var(--muted); font-size: 0.95rem; }
.nav a:hover, .nav a:focus-visible { color: #fff; }
.toolbar { display: flex; gap: 8px; }
.lang-btn {
  border: 1px solid rgba(255,255,255,0.16);
  color: var(--muted);
  background: transparent;
  border-radius: 999px;
  padding: 8px 12px;
  cursor: pointer;
  font-weight: 600;
}
.lang-btn.active { color: #fff; background: rgba(255,255,255,0.08); }

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 110px;
}
.hero-bg {
  position: absolute; inset: 0; overflow: hidden;
}
.hero-overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 10, 18, 0.2), rgba(4, 10, 18, 0.64)),
    linear-gradient(90deg, rgba(3,8,16,0.78) 0%, rgba(3,8,16,0.35) 50%, rgba(3,8,16,0.78) 100%);
  z-index: 2;
}
.hero-image {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
  opacity: 0; transform: scale(1.04);
  transition: opacity 1.2s ease, transform 6s ease;
}
.hero-image.active { opacity: 1; transform: scale(1); }
.hero-content { position: relative; z-index: 4; padding-bottom: 80px; }
.eyebrow, .section-kicker {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 12px; border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.06);
  color: #d4e6ff; font-size: 0.9rem; margin-bottom: 18px;
}
.hero h1 {
  max-width: 900px;
  margin: 0;
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.8rem, 6vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}
.hero-text {
  max-width: 780px; color: var(--muted);
  font-size: clamp(1.06rem, 2vw, 1.25rem);
  margin: 24px 0 34px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.button {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 22px; border-radius: 999px; font-weight: 700;
}
.button.primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; }
.button.secondary { border: 1px solid rgba(255,255,255,0.16); background: rgba(255,255,255,0.05); }
.hero-metrics {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
  margin-top: 40px; padding: 18px 22px; border-radius: var(--radius); max-width: 960px;
}
.hero-metrics span { display: block; color: var(--muted); font-size: 0.9rem; margin-bottom: 6px; }
.hero-metrics strong { font-size: 1rem; }

.section { padding: 100px 0; }
.dark-section { background: linear-gradient(180deg, rgba(12, 24, 42, 0.72), rgba(7, 17, 29, 0.2)); }
.section-heading { max-width: 900px; margin-bottom: 34px; }
.section-heading h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.06; margin: 0;
  font-family: 'Space Grotesk', sans-serif;
}
.section-intro, .split-layout p, .cta-box p, .feature-band p, .team-panel li {
  color: var(--muted); font-size: 1.04rem; line-height: 1.8;
}
.split-layout { display: grid; grid-template-columns: 1.4fr 0.8fr; gap: 28px; align-items: start; }
.quote-card {
  border-radius: var(--radius); padding: 26px;
}
.quote-mark { font-size: 2rem; color: var(--accent-2); }
.card-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
}
.research-card {
  border-radius: var(--radius); overflow: hidden;
}
.research-card img { width: 100%; height: 220px; object-fit: cover; }
.research-card div { padding: 22px; }
.research-card h3 { margin-top: 0; font-size: 1.25rem; }
.research-card p { color: var(--muted); margin-bottom: 0; }

.mosaic {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 20px;
  grid-auto-rows: 230px;
}
.mosaic-card {
  position: relative; overflow: hidden; border-radius: var(--radius);
}
.mosaic-card.large { grid-row: span 2; }
.mosaic-card img { width: 100%; height: 100%; object-fit: cover; }
.mosaic-card figcaption {
  position: absolute; left: 18px; right: 18px; bottom: 16px;
  padding: 12px 14px; border-radius: 14px;
  background: rgba(4, 10, 18, 0.58); color: #eef6ff; font-size: 0.96rem;
}

.feature-band {
  background:
    linear-gradient(135deg, rgba(61, 26, 126, 0.34), rgba(0, 173, 239, 0.14)),
    linear-gradient(180deg, rgba(8, 17, 29, 0.96), rgba(8, 17, 29, 0.96));
}
.feature-grid {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 28px; align-items: center;
}
.feature-list { padding: 28px; border-radius: var(--radius); }
.feature-list > div { display: grid; gap: 6px; padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,0.08); }
.feature-list > div:last-child { border-bottom: 0; }
.feature-list span { color: var(--muted); }

.team-panel {
  border-radius: var(--radius); padding: 28px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
}
.team-panel h3 { margin-top: 0; }
.team-panel ul { margin: 0; padding-left: 18px; }

.cta-section { padding-top: 40px; }
.cta-box {
  border-radius: 30px; padding: 34px;
  display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 24px; align-items: center;
}
.contact-meta { justify-self: end; }
.contact-meta p { margin-top: 0; }

@media (max-width: 1060px) {
  .nav { display: none; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .mosaic { grid-template-columns: 1fr 1fr; }
  .mosaic-card.large { grid-row: span 1; grid-column: span 2; }
  .split-layout, .feature-grid, .cta-box { grid-template-columns: 1fr; }
  .contact-meta { justify-self: start; }
}

@media (max-width: 720px) {
  .topbar { top: 10px; width: calc(100% - 20px); }
  .hero h1 { font-size: 2.5rem; }
  .hero-metrics, .card-grid, .team-panel, .mosaic { grid-template-columns: 1fr; }
  .mosaic-card.large { grid-column: auto; }
  .section { padding: 80px 0; }
  .toolbar { margin-left: 10px; }
  .brand strong { font-size: 0.9rem; }
  .brand small { font-size: 0.76rem; }
}