body {
  font-family: sans-serif;
  margin: 1em;
}

.main-nav {
  display: flex;
  gap: 1em;
  margin-bottom: 0.5em;
}

.main-nav a {
  text-decoration: none;
  font-weight: bold;
  color: #333;
}

.main-nav a:hover {
  text-decoration: underline;
}

#map {
  height: 500px;
  margin-bottom: 1em;
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 2em;
}

th, td {
  border-bottom: 1px solid #ddd;
  padding: 0.5em;
}

input {
  padding: 0.5em;
  margin-bottom: 1em;
  width: 100%;
  max-width: 400px;
}

footer {
  margin-top: 2em;
  font-size: 0.9em;
  color: #666;
}

#toTopBtn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: none;
  background-color: #444;
  color: white;
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  font-size: 20px;
  cursor: pointer;
}

#toTopBtn:hover {
  background-color: #666;
}