body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background-color: #f0f2f5;
    color: #333;
    text-align: center;
    padding: 20px;
}
.container {
    background-color: #fff;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    width: 100%;
}
h1 {
    color: #1a73e8;
    margin-bottom: 20px;
}
.section {
    margin-bottom: 30px;
    border: 1px solid #ddd;
    padding: 20px;
    border-radius: 10px;
    background-color: #fafafa;
}
.section h2 {
    margin-top: 0;
    color: #444;
}
.input-group {
    margin-bottom: 15px;
}
.input-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}
.input-group input, .input-group select {
    width: 80%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 5px;
}
button {
    background-color: #4285f4;
    color: #fff;
    border: none;
    padding: 12px 25px;
    font-size: 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}
button:hover {
    background-color: #357ae8;
    transform: translateY(-2px);
}
.numbers {
    margin-top: 20px;
    font-size: 20px;
    font-weight: bold;
    color: #e84242;
    min-height: 30px;
    white-space: pre-wrap;
    line-height: 1.5;
}

.github-link {
    font-size: 12px;
    color: #777;
    text-decoration: none;
    margin-bottom: -10px;
    display: block;
}
.github-link:hover {
    color: #4285f4;
    text-decoration: underline;
}