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

body {
    display: grid;
    place-items: center;
    text-align: center;
    min-height: 100vh;
    background: #f0f0f0;
    font-family: monospace;
}

button {
    width: 60px;
    height: 30px;
    border: none;
    border-radius: 5px;
    background-color: #f0f0f0;
    color: black;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #9e9e9e;
}

button:active {
    background-color: #7e7e7e;
}

p {
    font-size: 70px;
}

h1 {
    font-size: 40px;
    margin-bottom: 20px;
}

div {
    background-color: #121212;
    color: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 1.0);
}

.marca {
    position: fixed;
    bottom: 10px;
    right: 10px;
    font-size: 13px;
    color: rgba(0, 0, 0, 0.3);
    font-family: monospace, sans-serif;
    user-select: none;
    text-align: right;
}

.marca a {
    color: rgba(0, 0, 0, 0.3);
    text-decoration: none;
    transition: color 0.3s;
}

.marca a:hover {
    color: rgba(0, 0, 0, 0.7);
    text-decoration: underline;
}