body {
    margin-bottom: 50px;
}

/*
 * Styles for the promotional banner
 */
.promo-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(90deg, rgba(30, 35, 60, 0.85), rgba(50, 35, 70, 0.85));
    backdrop-filter: blur(5px);
    border-top: 1px solid rgba(102, 126, 234, 0.25);
    padding: 0.75rem 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 0.7rem;
    transition: transform 0.3s ease-in-out;
}

.promo-content {
    display: flex;
    align-items: center;
    gap: 1em;
    color: rgba(255, 255, 255, 0.8);
}

.promo-content a {
    color: #fff;
    font-weight: bold;
    text-decoration: none;
    background-color: rgba(255, 255, 255, 0.1);
    padding: 0.3em 0.8em;
    border-radius: 5px;
    transition: background-color 0.2s ease;
}

.promo-content a:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.close-promo-btn {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    padding: 0 0.5rem;
    transition: color 0.2s ease;
}

.close-promo-btn:hover {
    color: #fff;
}