body {
    background-color: rgb(0, 89, 255);
    color: white;
    font: normal 12pt arial;
}

header {
    font: oblique 20pt Oswald;
    text-align: center;
}

section {
    background-color: white;
    border-radius: 15px;
    width: 500px;
    height: auto;
    margin: auto;
    padding: 15px;
    color: black;
    box-shadow: 10px 10px 10px rgba(0, 0, 0, 0.575);
    min-height: 100px;
}
div {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;

    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 28px;
    font-weight: 500;
    color: rgb(95, 144, 236);

    letter-spacing: 0.5px;

    text-shadow: 
    -1px -1px 0 #000,  
     1px -1px 0 #000,
    -1px  1px 0 #000,
     1px  1px 0 #000;
}

input {
    margin-bottom: 20px;
}

footer {
    text-align: center;
    font: italic 10pt arial;
    margin-top: 5px;
}

#btn {
    background: white;
    color: rgb(0, 0, 0);
    border: none;
    padding: 12px 28px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 8px 20px rgba(79, 70, 229, 0.3);
    letter-spacing: 0.5px;
    margin-top: 15px;
}

/* Hover */
#btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 25px rgba(64, 62, 109, 0.4);
    background: rgb(255, 95, 89);
}

/* Click */
#btn:active {
    transform: translateY(0);
    box-shadow: 0 6px 15px rgba(79, 70, 229, 0.25);
}

/* Focus acessível */
#btn:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.4);
}