:root {
  --dark: #00204D;
  --blue: #023FB4;
  --soft-blue: #68A0C1;
  --green: #2C5A3E;
  --olive: #9AAF54;
  --yellow: #E9CC0A;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f7f9fc;
  color: var(--dark);
}

.hero {
  min-height: 90vh;
  background: linear-gradient(135deg, var(--dark), var(--blue));
  color: var(--white);
  padding: 30px 8%;
}

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

nav a {
  color: var(--white);
  text-decoration: none;
  margin-left: 20px;
}

.hero-content {
  max-width: 750px;
  margin-top: 140px;
}

.tag {
  color: var(--yellow);
  font-weight: bold;
}

h1 {
  font-size: 52px;
  margin: 15px 0;
}

.button {
  display: inline-block;
  margin-top: 20px;
  padding: 14px 24px;
  background: var(--yellow);
  color: var(--dark);
  text-decoration: none;
  border-radius: 30px;
  font-weight: bold;
}

main {
  padding: 60px 8%;
}

section {
  margin-bottom: 70px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

article {
  background: white;
  padding: 25px;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 32, 77, 0.1);
}

footer {
  text-align: center;
  padding: 30px;
  background: var(--dark);
  color: white;
}

@media (max-width: 800px) {
  h1 {
    font-size: 36px;
  }

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

  nav {
    flex-direction: column;
    gap: 15px;
  }
}