body {
    margin: 0;
    font-family: 'Arial', sans-serif;
    background: url('gmbr/bg/1.jpg') no-repeat center center fixed;
    background-size: cover;
}

.background-blur {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: -1;
}

.header-3d {
    font-size: 2.5em;
    font-weight: bold;
    color: #333;
    text-align: center;
    text-transform: uppercase;
    text-shadow: 2px 2px 0px #e0e0e0, 
                 4px 4px 0px #d0d0d0, 
                 6px 6px 0px #c0c0c0, 
                 8px 8px 0px #b0b0b0, 
                 10px 10px 0px #a0a0a0;
}


.container-3d {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 15px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2), 0 6px 6px rgba(0, 0, 0, 0.3);
    perspective: 900px;
    transition: transform 0.2s ease-out, box-shadow 0.2s ease-out;
    transform-style: preserve-3d;
}

.container-3d:hover {
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.3), 0 10px 10px rgba(0, 0, 0, 0.2);
}

.logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.card {
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.3s ease-out;
}

.card:hover {
    transform: scale(1.05);
}

.card-img-top {
    height: 180px;
    object-fit: cover;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
}

.card-title {
    font-size: 1.2em;
    margin-bottom: 10px;
}

.btn-dark {
    background-color: #444;
    border: none;
    transition: background-color 0.3s, transform 0.3s;
}

.btn-dark:hover {
    background-color: #333;
    transform: scale(1.05);
}