:root {
  --bg: #040712;
  --bg-alt: #060a18;
  --surface: #0b1022;
  --accent: #3cc4ff;
  --accent-soft: rgba(60, 196, 255, 0.16);
  --accent-strong: rgba(60, 196, 255, 0.6);
  --text: #f5f7ff;
  --muted: #a2acc7;
  --border-subtle: rgba(162, 172, 199, 0.18);
  --shadow-soft: 0 18px 60px rgba(0, 0, 0, 0.55);
  --radius-lg: 18px;
  --radius-xl: 28px;
  --radius-pill: 999px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: radial-gradient(circle at top, #091132 0, #02040a 55%, #020308 100%);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
  background: linear-gradient(
      to bottom,
      rgba(2, 4, 12, 0.9),
      rgba(2, 4, 12, 0.5),
      transparent
    );
  border-bottom: 1px solid rgba(60, 196, 255, 0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0.25rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 40%;
  background:
    radial-gradient(circle at 30% 0%, #7cf6ff 0, transparent 50%),
    radial-gradient(circle at 80% 120%, #3cc4ff 0, transparent 55%),
    radial-gradient(circle at -10% 100%, #5b5bff 0, transparent 50%);
  box-shadow: 0 0 0 1px rgba(60, 196, 255, 0.4),
    0 18px 40px rgba(0, 0, 0, 0.7);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-weight: 600;
  letter-spacing: 0.03em;
  font-size: 0.98rem;
}

.brand-tagline {
  font-size: 0.72rem;
  color: var(--muted);
}

.nav {
  display: flex;
  gap: 1.5rem;
  font-size: 0.9rem;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  position: relative;
  padding-bottom: 0.15rem;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #3cc4ff, #7cf6ff);
  transition: width 0.16s ease-out;
}

.nav a:hover::after {
  width: 100%;
}

.hero {
  padding: 3.75rem 0 3rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1.25fr);
  gap: 3rem;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.2rem, 3vw + 1.4rem, 2.9rem);
  line-height: 1.08;
  margin: 0 0 1.25rem;
}

.hero p {
  margin: 0 0 0.9rem;
  color: var(--muted);
  font-size: 0.98rem;
}

.hero-note {
  margin-top: 0.75rem;
  font-size: 0.92rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin: 1.4rem 0 0.3rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.2rem;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.08s ease-out, box-shadow 0.08s ease-out,
    background 0.1s ease-out, border-color 0.1s ease-out;
}

.button.primary {
  background: linear-gradient(135deg, #3cc4ff, #56e3ff);
  color: #040712;
  box-shadow: 0 15px 40px rgba(15, 160, 220, 0.45);
}

.button.ghost {
  background: rgba(8, 14, 30, 0.8);
  border-color: rgba(162, 172, 199, 0.3);
  color: var(--text);
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.9);
  text-decoration: none;
}

.hero-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
}

.earth-orbit {
  width: 260px;
  height: 260px;
  border-radius: 50%;
  position: relative;
  background: radial-gradient(circle at 20% 0, rgba(124, 246, 255, 0.6), transparent 55%),
    radial-gradient(circle at 80% 100%, rgba(60, 196, 255, 0.5), transparent 60%),
    radial-gradient(circle at -10% 100%, rgba(91, 91, 255, 0.45), transparent 55%);
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.85);
  overflow: hidden;
}

.earth {
  position: absolute;
  inset: 22%;
  margin: auto;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 25%, #e0f7ff 0, #52c8ff 16%, transparent 60%),
    radial-gradient(circle at 70% 35%, #d7ffe3 0, #41d67f 20%, transparent 55%),
    radial-gradient(circle at 10% 90%, #2a5bd8 0, #0e1b4f 60%, transparent 72%);
  box-shadow: 0 0 0 2px rgba(229, 244, 255, 0.08);
}

.orbit {
  position: absolute;
  border-radius: 50%;
  border: 1px dashed rgba(229, 244, 255, 0.35);
}

.orbit-1 {
  inset: 15%;
}

.orbit-2 {
  inset: 4%;
}

.orbit-3 {
  inset: -8%;
}

.hero-caption {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.section {
  padding: 3rem 0;
}

.section-alt {
  background: radial-gradient(circle at top, #050b1f 0, #02040a 65%);
  border-top: 1px solid rgba(12, 20, 48, 0.9);
  border-bottom: 1px solid rgba(12, 20, 48, 0.9);
}

.section h2 {
  font-size: 1.6rem;
  margin: 0 0 1.25rem;
}

.section-intro {
  max-width: 640px;
  color: var(--muted);
  font-size: 0.95rem;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.3fr);
  gap: 2.5rem;
  align-items: start;
}

.mission-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
}

.card {
  background: radial-gradient(circle at top left, rgba(60, 196, 255, 0.2), transparent 60%),
    radial-gradient(circle at bottom, rgba(7, 12, 32, 0.9), #050817);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  padding: 1.1rem 1rem;
  box-shadow: var(--shadow-soft);
}

.card h3 {
  font-size: 1rem;
  margin: 0 0 0.4rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.formats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.format-card h3 {
  font-weight: 600;
}

.programs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

.get-involved {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 2.2rem;
  align-items: start;
}

.list {
  margin: 1rem 0 0;
  padding-left: 1.15rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.list li + li {
  margin-top: 0.35rem;
}

.contact-card {
  background: radial-gradient(circle at top, rgba(124, 246, 255, 0.2), transparent 65%),
    radial-gradient(circle at bottom, rgba(3, 8, 26, 0.95), #030616);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(60, 196, 255, 0.35);
  padding: 1.4rem 1.3rem;
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.85);
}

.contact-card h3 {
  margin-top: 0;
}

.contact-detail {
  margin: 0.5rem 0 0;
  font-size: 0.92rem;
}

.site-footer {
  border-top: 1px solid rgba(18, 28, 66, 0.9);
  padding: 1.4rem 0 1.8rem;
  background: radial-gradient(circle at top, #050b1f 0, #01020a 70%);
}

.footer-inner {
  text-align: center;
}

.site-footer p {
  margin: 0;
  font-size: 0.78rem;
  color: var(--muted);
}

@media (max-width: 840px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }

  .nav {
    gap: 1rem;
    font-size: 0.85rem;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero {
    padding-top: 3.1rem;
  }

  .hero-visual {
    order: -1;
  }

  .two-column,
  .get-involved {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 520px) {
  .header-inner {
    padding-inline: 0;
  }

  .container {
    padding-inline: 1.1rem;
  }

  .nav {
    flex-wrap: wrap;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .earth-orbit {
    width: 220px;
    height: 220px;
  }
}