.matika {
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    justify-content: center;
    padding: 20px;
    border-radius: 8px;
    /* box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1); */
    max-width: 400px;
    width: 100%;
    text-align: center;
}

h1 {
    text-align: center;
}

form label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: #555555;
}

form input {
    width: calc(100% - 20px);
    padding: 8px;
    margin-bottom: 15px;
    border: 1px solid #cccccc;
    border-radius: 4px;
}

.result {
    margin-top: 20px;
    font-size: 1.2em;
    color: #333333;
}

section {
    margin-bottom: 30px;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    background: #fafafa;
}

section:nth-child(odd) {
    background: #f5f5f5;
}

label {
    display: block;
    font-weight: bold;
    margin-bottom: 5px;
}

input, select, button {
    width: calc(100% - 20px);
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
}

form {
    margin-bottom: 20px;
}