body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    background-color: #443431;
    color: #fff;
}

a {
    color: #fff;
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: #666;
}

h1 {
    margin: 0;
    padding: 20px;
    font-size: 28px;
    font-weight: bold;
    text-align: center;
    color: #fff;
    animation: fadeInUp 1s ease;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: -10px;
}

.col {
    flex: 1;
    padding: 10px;
    margin: 5px;
    animation: slideInLeft 1s ease;
}

.board {
    position: relative;
    padding-bottom: 100%;
    background-color: #392424;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    background-image: url('a.gif');
    background-repeat: no-repeat;
    background-size: cover;
    border-radius: 5rem;
}

.boardBTTC {
    background-image: url('../images/bttc.svg');
    background-repeat: no-repeat;
    background-size: 80% auto;
    background-position: center;
    display: flex;
    justify-content: center;
    align-items: center;
}

.boardTRON {
    background-image: url('../images/tron.svg');
    background-color: #250f00;
    background-repeat: no-repeat;
    background-size: 80% auto;
    background-position: center;
    display: flex;
    justify-content: center;
    align-items: center;
}

.board:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.board-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
}

.board-title {
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 24px;
    font-weight: bold;
    color: #333;
    border-radius: 25px;
    background-color: rgb(129, 129, 129);
    padding: 0.4rem;
    visibility: hidden;

}

.board-link {
    margin-top: auto;
    color: #333;
    font-weight: bold;
    transition: all 0.3s ease;
    border-radius: 25px;
    background-color: rgb(129, 129, 129);
    background-position: left top;
    background-repeat: repeat;
    padding: 8px;
}

.board-link:hover {
    color: #666;
}

.footer {
    margin-top: 20px;
    padding: 10px;
    background-color: #250f00;
    color: #fff;
    text-align: center;
    animation: fadeInUp 1s ease;
}

.footer p {
    margin: 0;
    padding: 10px;
}

.col img {
    width: 240px;
}

#info {
    text-align: center;
    margin-top: 20px;
    font-size: 18px;
    animation: fadeInUp 1s ease;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-100px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media only screen and (max-width: 600px) {
    .board-link {
        font-size: 0.8rem;
        padding: 2px 4px;
    }

    .col img {
        width: 180px;
    }

    body {
        display: flex;
        flex-direction: column;
        min-height: 100vh;
    }

    main {
        flex: 1;
    }

    footer {
        margin-top: auto;
    }

    .boardBTTC,
    .boardTRON {
        background-size: 66% auto;
        background-position: center;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    #infoinvoice {
        font-size: 12px;
    }

    footer {
        font-size: 15px;
    }

    #info {
        margin-top: 2rem;
    }
}