body {
  margin: 0;
  font-family: "Computer Modern Serif", serif;
  background: #ffffff; /* clean flat background */
  color: #1a1a1a;
}

/* HEADER */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 25px;
  background: darkblue;
  color: white;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo img {
  width: 55px;
  height: 55px;
  border-radius: 50%;
}

header h1 {
  font-size: 22px;
  margin: 0;
}

header h1 a {
  text-decoration: none;
  color: white;
}

/* NAV */
nav a {
  text-decoration: none;
  color: white;
  padding: 8px 12px;
  border-radius: 6px;
  background: rgba(255,255,255,0.15);
}

nav a:hover {
  background: rgba(255,255,255,0.25);
}

/* HERO */
.hero {
  text-align: center;
  padding: 20px;
}

.hero h2 {
  color: darkblue;
}

.hero h1 {
  color: darkgreen;
  font-size: 36px;
}

.hero-img {
  width: 250px;
  margin: 20px 0;
}

/* TEXT */
.hero-text {
  padding: 20px;
  text-align: justify;
  line-height: 1.8;
}

/* BUTTON */
.cta-button {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 18px;
  background: darkblue;
  color: white;
  text-decoration: none;
  border-radius: 6px;
}

.cta-button:hover {
  background: #0b1a5a;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 10px;
  background: black;
  color: white;
  margin-top: 40px;
}