:root {
  --bg: #0a0b0f;
  --bg-elevated: #12141a;
  --bg-card: #161820;
  --fg: #e8e9ed;
  --fg-muted: #8b8d96;
  --fg-subtle: #5a5c64;
  --accent: #4af0c8;
  --accent-dim: rgba(74, 240, 200, 0.12);
  --accent-glow: rgba(74, 240, 200, 0.25);
  --warm: #f0c84a;
  --radius: 12px;
  --radius-sm: 8px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.15;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 16px;
}

/* ─── HERO ─── */
.hero {
  position: relative;
  padding: 140px 0 100px;
  overflow: hidden;
}

.hero-bg-elements {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: rgba(74, 240, 200, 0.08);
  top: -100px;
  right: -100px;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: rgba(74, 140, 240, 0.06);
  bottom: -150px;
  left: -100px;
}

.orb-3 {
  width: 300px;
  height: 300px;
  background: rgba(240, 200, 74, 0.04);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 8px 20px;
  border-radius: 100px;
  border: 1px solid rgba(74, 240, 200, 0.15);
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  margin-bottom: 24px;
  max-width: 700px;
}

.hero h1 .accent {
  color: var(--accent);
}

.lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 580px;
  margin-bottom: 48px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 28px 36px;
  background: var(--bg-elevated);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.06);
  width: fit-content;
}

.stat-number {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 2px;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.08);
}

/* ─── PRODUCTS ─── */
.products {
  padding: 120px 0;
}

.products h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 12px;
}

.section-sub {
  color: var(--fg-muted);
  font-size: 1.05rem;
  max-width: 520px;
  margin-bottom: 56px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: border-color 0.3s, transform 0.3s;
}

.product-card:hover {
  border-color: rgba(74, 240, 200, 0.2);
  transform: translateY(-3px);
}

.product-icon {
  font-size: 1.4rem;
  color: var(--accent);
  margin-bottom: 16px;
}

.product-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.product-card p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ─── SCIENCE ─── */
.science {
  padding: 100px 0;
  background: var(--bg-elevated);
}

.science-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}

.science-content h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  margin-bottom: 20px;
}

.science-content > p {
  color: var(--fg-muted);
  font-size: 1rem;
  margin-bottom: 36px;
  line-height: 1.7;
}

.science-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.feature {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.95rem;
}

.feature-check {
  color: var(--accent);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.shield-graphic {
  position: relative;
  width: 280px;
  height: 280px;
  margin: 0 auto;
}

.shield-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(74, 240, 200, 0.12);
}

.ring-1 {
  inset: 0;
  animation: pulse-ring 4s ease-in-out infinite;
}

.ring-2 {
  inset: 30px;
  border-color: rgba(74, 240, 200, 0.2);
  animation: pulse-ring 4s ease-in-out infinite 1s;
}

.ring-3 {
  inset: 60px;
  border-color: rgba(74, 240, 200, 0.3);
  animation: pulse-ring 4s ease-in-out infinite 2s;
}

.shield-center {
  position: absolute;
  inset: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: 50%;
  border: 2px solid rgba(74, 240, 200, 0.3);
}

.shield-center span {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
}

@keyframes pulse-ring {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.04); }
}

/* ─── APPLICATIONS ─── */
.applications {
  padding: 120px 0;
}

.applications h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  margin-bottom: 56px;
  max-width: 500px;
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.app-item {
  padding: 32px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.app-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 16px;
}

.app-item h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
}

.app-item p {
  color: var(--fg-muted);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* ─── CLOSING ─── */
.closing {
  padding: 100px 0;
  background: var(--bg-elevated);
  text-align: center;
}

.closing-content {
  max-width: 640px;
  margin: 0 auto;
}

.closing h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  margin-bottom: 20px;
}

.closing p {
  color: var(--fg-muted);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 36px;
}

.closing-tagline {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--accent);
}

/* ─── FOOTER ─── */
.site-footer {
  padding: 48px 0;
  border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
}

.footer-text {
  color: var(--fg-subtle);
  font-size: 0.85rem;
}

.footer-contact {
  color: var(--fg-muted);
  font-size: 0.85rem;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
  .hero {
    padding: 100px 0 60px;
  }

  .hero-stats {
    flex-direction: column;
    gap: 20px;
    width: 100%;
    text-align: center;
  }

  .stat-divider {
    width: 60px;
    height: 1px;
  }

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

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

  .shield-graphic {
    width: 220px;
    height: 220px;
    order: -1;
  }

  .shield-center {
    inset: 70px;
  }

  .ring-2 { inset: 24px; }
  .ring-3 { inset: 48px; }

  .app-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .footer-content {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}