body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    font-family: 'Arial', sans-serif;
    overflow: hidden;
}

body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: #add8e6; /* Cor de fundo azul clara */
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    opacity: 0.25; /* Penumbra */
    z-index: 1;
    animation: backgroundRotate 25s infinite ease-in-out;
}

@keyframes backgroundRotate {
    0% { background-image: url('img/sport1.jpg'); }
    20% { background-image: url('img/sport2.jpg'); }
    40% { background-image: url('img/sport3.jpg'); }
    60% { background-image: url('img/sport4.jpg'); }
    80% { background-image: url('img/sport5.jpg'); }
	100% { background-image: url('img/sport1.jpg'); }
}

.content {
    z-index: 2;
    text-align: center;
}

h1 {
    color: #fff;
    font-size: 4.8rem;
    text-transform: uppercase;
    letter-spacing: 0.4rem;
    animation: fadeIn 2s ease-in-out;
}

@keyframes fadeIn {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

footer {
    position: absolute;
    bottom: 10px;
    width: 100%;
    text-align: center;
    color: #333;
    font-size: 0.8rem;
    z-index: 2;
}

footer a {
    color: #333;
    text-decoration: none;
}