body {
    min-height: 100vh;
    background-color: #f8f9fa;
}

.card {
    border: none;
    border-radius: 10px;
}

.card-header {
    background-color: #fff;
    border-bottom: 2px solid #f0f0f0;
}

.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

.ratio-16x9 {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,.1);
}