body {
  color: #333333;
  font-family: Arial, Helvetica, sans-serif;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
  padding: 0;
  background-color: #121212;
}

.main-content {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

footer {
  color: #888888;
  border-top: 1px solid #333333;
  margin-top: 16px;
  padding: 16px 0;
  background-color: #333333;
  display: flex;
  flex-direction: column;
  align-items: center;
}

header {
  margin-top: 16px;
  margin-bottom: 48px;
}

h1 {
  font-size: 64px;
  margin-bottom: 16px;
  text-align: center;
}

header a {
  color: #888888;
  margin-right: 16px;
  text-decoration: none;
}

.portrait {
  width: 600px;
}

.nav-container {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #333333;
  padding: 10px 0;
}

.nav-container a {
  text-decoration: none;
  color: white;
  font-size: 18px;
  padding: 10px 20px;
  margin: 0 15px;
  border-radius: 5px;
}

input,
select,
button {
  font-size: 16px;
  padding: 10px;
  border-radius: 5px;
  border: none;
  outline: none;
  height: 40px;
}

button {
  background-color: #4caf50;
  margin-left: 0.25rem;
}

body {
  color: #e0e0e0;
}