body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}

.login-box {
  max-width: 400px;
  margin: 100px auto;
  padding: 20px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

.login-box input {
  width: 100%;
  padding: 8px;
  margin: 8px 0;
  box-sizing: border-box;
}

.login-box button {
  width: 100%;
  padding: 10px;
  background: #007BFF;
  color: white;
  border: none;
  cursor: pointer;
}

.login-box button:hover {
  background: #0056b3;
}

#message {
  color: red;
  margin-top: 10px;
  text-align: center;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #007BFF;
  color: white;
  padding: 10px 20px;
}

#user-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

#user-photo {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid white;
}

nav#menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 20px;
}

nav#menu ul li a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

nav#menu ul li a:hover {
  text-decoration: underline;
}

main {
  text-align: center;
  margin-top: 100px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

th, td {
  padding: 10px;
  text-align: left;
}

button {
  cursor: pointer;
}

form input, form select, form button {
  margin: 5px 0;
  padding: 7px;
}