:root {
  --blue-dark: #0A1A2F;
  --blue-main: #1E6FFF;
  --blue-light: #4C8DFF;
  --bg-light: #F5F7FA;
  --text-light: #FFFFFF;
  --text-muted: #DDE3EA;
  --font-main: "Inter", "Segoe UI", system-ui, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--font-main);
  background: var(--blue-dark);
  color: var(--text-light);
}
a { text-decoration: none; }

header {
  background: rgba(10, 26, 47, 0.95);
  backdrop-filter: blur(10px);
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 10;
}
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}
.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  font-weight: 700;
  font-size: 1.1rem;
}
nav a {
  color: var(--text-light);
  margin-left: 18px;
  font-size: 0.95rem;
  font-weight: 500;
}
nav a.active {
  color: var(--blue-light);
}

.hero {
  padding: 60px 20px;
  background: linear-gradient(135deg, #0A1A2F, #12345A);
}
.hero h1 {
  font-size: 2.4rem;
  margin-bottom: 10px;
}
.hero p {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.6;
}
.btn-primary {
  display: inline-block;
  margin-top: 24px;
  background: var(--blue-main);
  color: var(--text-light);
  padding: 12px 26px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
}

.section {
  background: var(--bg-light);
  color: #0A1A2F;
  padding: 40px 20px;
}
.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.section-inner h2 {
  font-size: 1.6rem;
  margin-bottom: 16px;
}
.section-inner p {
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 12px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 20px;
}
.card {
  background: #FFFFFF;
  border-radius: 12px;
  padding: 18px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.08);
}
.card h3 {
  color: var(--blue-main);
  font-size: 1.1rem;
  margin-bottom: 8px;
}
.card p {
  font-size: 0.9rem;
  color: #333;
}

footer {
  text-align: center;
  padding: 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
  background: #07101F;
  margin-top: 40px;
}
footer a {
  color: var(--blue-light);
  margin: 0 8px;
  font-size: 0.85rem;
}

@media (max-width: 800px) {
  .cards { grid-template-columns: 1fr; }
}