* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial, sans-serif;
    background-color: #181818;
    color: #f5f5f5;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

h2 {
    text-align: center;
    font-weight: bold;
    margin-top: 20px;
    margin-bottom: 20px;
    color: #e0e0e0;
}

.form-container {
    background-color: #2a2a2a;
    padding: 10px;
    border-radius: 8px;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
    margin-bottom: 20px;
}

#studentInputForm input {
    width: 100%;
    padding: 5px;
    border: 1px solid #444;
    border-radius: 4px;
    font-size: 14px;
    color: #f5f5f5;
    background-color: #1e1e1e;
}

#studentInputForm button {
    display: block;
    width: 100%;
    padding: 5px;
    background-color: #333;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    margin-top: 5px;
}

table {
    border-collapse: separate;
    border-spacing: 0 5px;
    width: 100%;
    margin-top: 20px;
    margin-bottom: 20px;
    border-radius: 8px;
    overflow: hidden;
    background-color: #2a2a2a;
}

thead {
    background-color: #333;
    color: #e0e0e0;
}

th, td {
    padding: 5px;
    text-align: center;
    border: 1px solid #444;
}

tbody tr:hover, td:hover {
    background-color: #121212;
}