body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  /* Fallback solid color */
  background-color: #f0f8ff;
  /* Smooth vertical gradient from white to sky-blue */
  background-image: linear-gradient(180deg, #ffffff 0%, #caf0f8 100%);
  /* Make sure the gradient covers the viewport */
  min-height: 100vh;
  color: #333;
}

header {
  background-color: #0077b6;
  color: white;
  padding: 1em;
  text-align: center;
}

nav ul {
  list-style: none;
  padding: 0;
  display: flex;
  justify-content: center;
  gap: 2em;
}

nav a {
  color: white;
  text-decoration: none;
}

section {
  padding: 2em;
}

#hero {
  background-color: rgba(202, 240, 248, 0.6); /* subtle translucent block so hero stands out */
  text-align: center;
  padding: 2em 1em;
  border-radius: 8px;
  margin: 1em auto;
  max-width: 1000px;
}

button {
  background-color: #0077b6;
  color: white;
  border: none;
  padding: 0.5em 1em;
  cursor: pointer;
  border-radius: 4px;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1em;
  max-width: 400px;
  margin: auto;
}

footer {
  background-color: #0077b6;
  color: white;
  text-align: center;
  padding: 1em;
}