index.css

body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
}

h1 {
    text-align: center;
    color: #333;
    font-weight: bold;
}

form {
    max-width: 600px;
    margin: 20px auto;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

label {
    font-weight: bold;
    display: block;
    margin-top: 10px;
}

input[type="text"], input[type="tel"], input[type="email"] {
    width: calc(100% - 20px);
    padding: 10px;
    margin: 8px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
}

input[type="submit"], button {
    background-color: #4CAF50;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
}

input[type="submit"]:hover, button:hover {
    background-color: #45a049;
}

table {
    width: 90%;
    margin: 20px auto;
    border-collapse: collapse;
    background: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background-color: #4CAF50;
    color: white;
    font-weight: bold;
}

tr:hover {
    background-color: #f1f1f1;
}

button {
    margin: 5px;
}