* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(180deg, #020617 0%, #071b38 42%, #020617 100%);
  color: #e2e8f0;
  line-height: 1.8;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.navbar {
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(56, 189, 248, 0.15);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #7dd3fc;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.nav-links a {
  text-decoration: none;
  color: #cbd5e1;
  font-weight: 500;
  transition: color 0.25s ease, transform 0.2s ease;
}

.nav-links a:hover {
  color: #38bdf8;
  transform: translateY(-1px);
}

.nav-links a.active {
  color: #7dd3fc;
}

.hero {
  background: radial-gradient(circle at top left, rgba(15, 23, 42, 1) 0%, rgba(2, 6, 23, 1) 35%, rgba(7, 27, 56, 1) 100%);
  padding: 5rem 2rem 4rem;
  text-align: center;
  min-height: calc(100vh - 96px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-content {
  max-width: 820px;
}

.hero h1 {
  font-size: 3.4rem;
  line-height: 1.05;
  color: #7dd3fc;
  margin: 0 0 1rem;
}

.hero p {
  font-size: 1.15rem;
  color: #cbd5e1;
  margin: 0 auto 2rem;
  max-width: 720px;
}

.btn-primary {
  background: #0ea5e9;
  color: #fff;
  padding: 0.95rem 1.8rem;
  border-radius: 999px;
  text-decoration: none;
  display: inline-block;
  box-shadow: 0 18px 35px rgba(14, 165, 233, 0.18);
  transition: transform 0.2s ease, background 0.2s ease;
}

.btn-primary:hover {
  background: #38bdf8;
  transform: translateY(-2px);
}

.btn-secondary {
  border: 2px solid #125b7b;
  color: #125b7b;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.1);
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}

.btn-secondary:hover {
  background: #38bdf8;
  color: #020617;
}

.section,
.cta {
  scroll-margin-top: 100px;
}

.section {
  padding: 3rem 2rem;
  max-width: 1000px;
  margin: 0 auto 2rem;
  background: rgba(15, 23, 42, 0.92);
  border: 1px solid rgba(56, 189, 248, 0.12);
  border-radius: 24px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.22);
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.section.visible {
  opacity: 1;
  transform: translateY(0);
}

.cta {
  color: #b1c0ff;
  text-align: center;
  padding: 3.5rem 2rem;
  border-radius: 24px;
  max-width: 1000px;
  margin: 0 auto 2rem;
  box-shadow: 0 24px 60px rgba(14, 165, 233, 0.18);
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.cta.visible {
  opacity: 1;
  transform: translateY(0);
}

.cta p {
  max-width: 760px;
  margin: 0 auto 1.25rem;
  color: #dbeafe;
  font-size: 1rem;
}

.btn-secondary {
  border: 2px solid #125b7b;
  color: #fff;
  padding: 1rem 2rem;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.18), rgba(14, 165, 233, 0.24));
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.btn-secondary:hover {
  background: #38bdf8;
  color: #020617;
  transform: translateY(-2px);
}

.section h2 {
  color: #38bdf8;
  margin-bottom: 1rem;
  font-size: clamp(1.75rem, 2vw, 2.1rem);
  letter-spacing: 0.02em;
}

.section h3 {
  color: #7dd3fc;
  margin-top: 1.75rem;
  margin-bottom: 0.85rem;
  font-size: 1.25rem;
}

.section p,
.section li {
  color: #cbd5e1;
  font-size: 1rem;
}

.section p {
  margin-bottom: 1rem;
}

.section ul {
  padding-left: 1.4rem;
  margin: 0;
  list-style: inside disc;
  columns: 2;
  column-gap: 2rem;
}

.section li {
  margin-bottom: 0.85rem;
  break-inside: avoid;
}

.section li strong {
  color: #f8fafc;
}

/* Footer */
.footer {
  background: rgba(2, 6, 23, 0.98);
  color: #94a3b8;
  text-align: center;
  padding: 1.8rem 1rem;
  font-size: 0.95rem;
  border-top: 1px solid rgba(56, 189, 248, 0.12);
}

.footer .credit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: inherit;
}

.footer .credit p {
  margin: 0;
  line-height: 1.5;
}

a.credit:hover {
  color: #7dd3fc;
}

@media (max-width: 768px) {
  .nav-flex {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    justify-content: center;
    width: 100%;
  }

  .hero {
    padding: 4rem 1.5rem;
    min-height: auto;
  }

  .hero h1 {
    font-size: 2.6rem;
  }

  .section {
    padding: 2rem 1.25rem;
    margin-bottom: 1.5rem;
  }

  .section ul {
    columns: 1;
    column-gap: 0;
  }

  .cta {
    margin: 0 1rem 1.5rem;
    padding: 2.5rem 1.5rem;
  }
}