body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 20px;
    background-color: #f9f9fc;
    color: #333;
}

h1 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 20px;
}

form {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0px 4px 15px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    margin: 20px auto;
}

label, input {
    display: block;
    margin-bottom: 15px;
    font-size: 1em;
}

input {
    padding: 10px;
    width: 100%;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-sizing: border-box;
}

button {
    padding: 12px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    width: 100%;
}

button:hover {
    background-color: #2980b9;
}

#output {
    text-align: center;
    margin-top: 20px;
}

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

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

th {
    background-color: #062f4a;
    color: white;
}

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

.reset-btn {
    background-color: #e74c3c;
    margin-top: 10px;
}

.reset-btn:hover {
    background-color: #c0392b;
}

#error-warning {
    color: red;
    text-align: center;
}