* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}


body {
  font-family: 'Segoe UI', sans-serif;
  background-color: #f5faff;
  color: #003366;
  line-height: 1.6;
}


header {
  background-color: #005f99;
  color: white;
  padding: 1.5em 1em;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.header-content {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1em;
  flex-wrap: wrap;
  margin-bottom: 1em;
}

.logo {
  width: 60px;
  height: auto;
  border-radius: 5px;
  box-shadow: 0 2px 6px rgba(255, 255, 255, 0.4);
}


nav {
  margin-top: 1em;
}

nav a {
  margin: 0 15px;
  color: #d0f0ff;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s ease;
}

nav a:hover {
  color: #ffffff;
  text-decoration: underline;
}


.intro {
  background-color: #eaf4ff;
  padding: 2em 1.5em;
  margin: 3em auto;
  max-width: 750px;
  text-align: center;
  border-left: 6px solid #3399ff;
  border-radius: 8px;
  box-shadow: 0 0 8px rgba(0, 95, 153, 0.05);
}

.intro h2 {
  color: #005f99;
  margin-bottom: 1em;
}

.button {
  display: inline-block;
  margin-top: 1.5em;
  padding: 0.75em 1.5em;
  background-color: #005f99;
  color: white;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.3s ease;
}

.button:hover {
  background-color: #3399ff;
}


.grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5em;
  padding: 1em;
  max-width: 1000px;
  margin: 0 auto 3em auto;
}

.card {
  background-color: #ffffff;
  padding: 1.5em;
  width: 280px;
  border-radius: 10px;
  text-align: center;
  border: 2px solid #dceeff;
  box-shadow: 0 4px 12px rgba(0, 95, 153, 0.1);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  border-color: #3399ff;
}


footer {
  background-color: #003366;
  color: #e0f0ff;
  text-align: center;
  padding: 1.5em 1em;
  font-size: 0.95em;
  margin-top: 2em;
}