:root {
  --bg: #02040a;
  --bg-soft: #050814;
  --text-main: #f7f7f7;
  --text-muted: #b4b4b4;
  --accent: #4da3ff;
  --accent-soft: rgba(77,163,255,0.12);
  --border-subtle: rgba(255,255,255,0.06);
  --shadow-soft: 0 24px 60px rgba(0,0,0,0.65);
  --radius-lg: 18px;
  --radius-pill: 999px;
  --max-width: 1080px;
  --nav-height: 72px;
  --font-main: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-main);
  background: radial-gradient(circle at top left, #071021 0, #02040a 50%, #000000 100%);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-wrap {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: var(--accent);
}

.nav-shell {
  position: sticky;
  top: 0;
  z-index: 20;
  background: radial-gradient(circle at top left, rgba(77,163,255,0.08), rgba(2,4,10,0.96));
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 16px rgba(77,163,255,0.8);
}

.brand-mark span {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
}

.brand-text-main {
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.brand-text-sub {
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.9rem;
}

.nav-links a {
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--text-muted);
}

.nav-links a.active,
.nav-links a:hover {
  background: rgba(255,255,255,0.04);
  color: var(--text-main);
}

.nav-cta {
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--accent), #74b8ff);
  color: #02040a !important;
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(77,163,255,0.6);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 36px rgba(77,163,255,0.7);
}

.hero-shell {
  max-width: var(--max-width);
  margin: 32px auto 0;
  padding: 20px;
}

.hero-inner {
  position: relative;
  background: radial-gradient(circle at top right, rgba(77,163,255,0.22), var(--bg-soft));
  border-radius: 32px;
  border: 1px solid var(--border-subtle);
  padding: 30px 24px 24px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(260px, 2.5fr);
  gap: 16px;
}

.hero-tagline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 4px 10px 4px 4px;
  border-radius: 999px;
  background: rgba(2,4,10,0.8);
  border: 1px solid rgba(255,255,255,0.06);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.hero-tagline span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.9rem;
}

.hero-title {
  font-size: clamp(2rem, 2.8vw, 2.6rem);
  line-height: 1.1;
  margin: 0 0 12px;
}

.hero-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 460px;
  margin-bottom: 20px;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.btn-primary {
  padding: 11px 22px;
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--accent), #7bc5ff);
  color: #02040a;
  font-weight: 600;
  font-size: 0.92rem;
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  box-shadow: 0 14px 32px rgba(77,163,255,0.7);
}

.btn-primary span.icon {
  font-size: 1.1rem;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 42px rgba(77,163,255,0.9);
}

.btn-ghost {
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-subtle);
  background: rgba(0,0,0,0.3);
  color: var(--text-muted);
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.04);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.hero-meta strong {
  color: var(--text-main);
  font-weight: 500;
}

.hero-earth {
  position: relative;
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.earth-glow {
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 20%, rgba(255,255,255,0.9), rgba(255,255,255,0) 40%),
    radial-gradient(circle at 50% 50%, #1a4b9c, #040b1a 70%);
  box-shadow:
    0 0 70px rgba(77,163,255,0.85),
    0 0 180px rgba(0,112,255,0.75);
  position: relative;
  overflow: hidden;
}

.earth-mask {
  position: absolute;
  inset: 18%;
  border-radius: 50%;
  background: radial-gradient(circle at 20% 20%, rgba(255,255,255,0.14), transparent 70%);
  mix-blend-mode: screen;
}

.earth-india {
  position: absolute;
  bottom: 26%;
  left: 52%;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.35);
  box-shadow: 0 0 22px rgba(255,255,255,0.35);
}

.hero-caption {
  position: absolute;
  bottom: 12px;
  right: 18px;
  font-size: 0.65rem;
  color: var(--text-muted);
  text-align: right;
  max-width: 180px;
}

.section {
  max-width: var(--max-width);
  margin: 32px auto 0;
  padding: 0 20px 8px;
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 14px;
}

.section-title {
  font-size: 1.1rem;
  margin: 0;
}

.section-kicker {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.7rem;
  color: var(--accent);
  margin-bottom: 4px;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.card {
  background: rgba(2,4,10,0.86);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  padding: 14px 14px 16px;
  box-shadow: 0 18px 40px rgba(0,0,0,0.7);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.card-title {
  font-size: 0.98rem;
  margin: 0 0 2px;
}

.card-tag {
  font-size: 0.68rem;
  padding: 1px 9px;
  border-radius: 999px;
  background: rgba(77,163,255,0.14);
  color: var(--accent);
  border: 1px solid rgba(77,163,255,0.4);
}

.card-body {
  font-size: 0.86rem;
  color: var(--text-muted);
}

.card-body ul {
  margin: 6px 0 0 16px;
  padding: 0;
}

.card-body li {
  margin-bottom: 4px;
}

.chips-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 6px;
}

.chip {
  font-size: 0.7rem;
  padding: 2px 10px;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

.info-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 6px;
}

.info-row span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.info-row span::before {
  content: "•";
  color: rgba(255,255,255,0.38);
}

.footer-shell {
  margin-top: 40px;
  border-top: 1px solid var(--border-subtle);
  background: radial-gradient(circle at top, rgba(77,163,255,0.1), #010208);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 20px 18px;
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
}

.footer-links {
  display: flex;
  gap: 12px;
}

.footer-links a {
  color: var(--text-muted);
}

.footer-links a:hover {
  color: var(--accent);
}

.page-heading {
  max-width: var(--max-width);
  margin: 32px auto 0;
  padding: 0 20px;
}

.page-heading h1 {
  margin: 0 0 8px;
  font-size: 1.6rem;
}

.page-heading p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
  max-width: 640px;
}

.page-section {
  max-width: var(--max-width);
  margin: 20px auto 0;
  padding: 0 20px 8px;
}

.page-section h2 {
  font-size: 1rem;
  margin: 0 0 4px;
}

.page-section p {
  margin: 0 0 6px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.page-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.team-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: rgba(2,4,10,0.9);
  padding: 12px 12px 14px;
  font-size: 0.84rem;
  color: var(--text-muted);
  box-shadow: 0 16px 38px rgba(0,0,0,0.7);
}

.team-name {
  font-size: 0.92rem;
  color: var(--text-main);
  margin-bottom: 2px;
}

.team-role {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.65rem;
  color: var(--accent);
  margin-bottom: 6px;
}

.contact-card {
  max-width: 520px;
  margin-top: 16px;
  padding: 16px 16px 18px;
}

.contact-item {
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.contact-item strong {
  color: var(--text-main);
}

.contact-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 6px;
}

.lab-note {
  max-width: 520px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

@media (max-width: 800px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    padding: 22px 18px 18px;
  }
  .hero-earth {
    min-height: 200px;
  }
  .nav-links {
    display: none;
  }
}

@media (max-width: 500px) {
  .hero-title {
    font-size: 1.65rem;
  }
  .hero-inner {
    border-radius: 24px;
  }
}