body {
  font-family: 'Segoe UI', sans-serif;
  background-color: #f2f2f2;
  display: flex;
  justify-content: center;
  padding-top: 50px;
}

.container {
  background: white;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  width: 100%;
  max-width: 600px;
}

h1 {
  text-align: center;
  color: #333;
  margin-bottom: 20px;
}

.form-group {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

input[type="text"] {
  flex: 1;
  padding: 10px;
  border-radius: 5px;
  border: 1px solid #ccc;
}

button {
  padding: 10px 15px;
  background-color: #007bff;
  border: none;
  color: white;
  border-radius: 5px;
  cursor: pointer;
}

button:hover {
  background-color: #0056b3;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  text-align: left;
  padding: 10px;
  border-bottom: 1px solid #ddd;
}

.status-btn {
  margin-right: 10px;
  padding: 5px 10px;
  border: none;
  border-radius: 4px;
  color: white;
  cursor: pointer;
}

.present {
  background-color: #28a745;
}

.absent {
  background-color: #dc3545;
}

.delete-btn {
  background-color: #6c757d;
}