body {
    background: #f4f6f9;
    font-family: 'Poppins', sans-serif;
    color: #333;
    position: relative;
    height: 100vh;
    margin: 0;
    padding: 0;
    overflow: auto;
}

div.header{
    margin-bottom: 32px;
    color: white;
    padding: 20px;
    background-color: #8b0002;
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 1000;
}

div.header h2{
    font-weight: bold;
}

div.header div#back-button a{
    text-decoration: none;
    cursor: pointer;
}

.grid-item {
    border: 1px solid black;
    padding: 20px;
    text-align: center;
    background: #fbf9cd;
    font-size: 24px;
    border-radius: 15px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    transition: all 0.4s ease;
    cursor: pointer;
    backdrop-filter: blur(10px);
}

#grid-container .col-md-3,
#grid-container .col-sm-6,
#grid-container .col-12 {
    margin-bottom: 5px;
}

#grid-container {
    justify-content: center;
    align-items: center;
    display: flex;
    column-gap: 5px;
    row-gap: 5px;
}

@media (hover: hover) {
    .grid-item:hover {
        background: #8b0002;
        color: white;
        box-shadow: 0 15px 30px rgba(173, 216, 230, 0.5);
    }
}

.hidden {
    display: none;
}