body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #eef2f7;
  color: #222;
}

/* HEADER */
.top {
  background: #ffffff;
  padding: 15px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid #d4dde8;
}

.logo-link {
  font-size: 26px;
  font-weight: bold;
  text-decoration: none;
  color: #336699;
}

/* MENU */
.menu a {
  margin-left: 18px;
  text-decoration: none;
  color: #336699;
  font-weight: bold;
  transition: 0.2s ease;
}

.menu a:hover {
  color: #003d73;
  text-decoration: underline;
}

/* HERO */
.hero {
  text-align: center;
  padding: 40px 20px;
  background: #fff;
  margin: 20px auto;
  max-width: 900px;
  border-radius: 10px;
  border: 1px solid #ccd6e0;
}

/* GRID BOXES */
.grid {
  max-width: 900px;
  margin: 20px auto;
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.box {
  background: #fff;
  padding: 20px;
  border-radius: 10px;
  border: 1px solid #ccd6e0;
}

/* FOOTER */
.foot {
  text-align: center;
  padding: 20px;
  margin-top: 40px;
  background: #fff;
  border-top: 2px solid #d4dde8;
}

.foot a {
  color: #336699;
  text-decoration: none;
  font-weight: bold;
}