/* Sidebars */
.sidebar-left {
    position: fixed;
    left: 12px;
    top: 215px;
    bottom: 20px;
    width: 225px;
    z-index: 500;
}

.sidebar-right {
    position: fixed;
    right: 12px;
    top: 215px;
    bottom: 20px;
    width: 225px;
    z-index: 500;
}

.sidebar-ad-link {
    display: block;
    height: 100%;
    text-decoration: none;
}

.sidebar-card {
    background: linear-gradient(135deg, #1a1a2e, #2a2a4e);
    border-radius: 18px;
    padding: 8px;
    text-align: center;
    border: 2px solid #3b82f6;
    box-shadow: 0 10px 31px rgba(0, 0, 0, 0.3);
    animation: float 4s ease-in-out infinite;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    overflow: hidden;
    height: 100%;
}

.sidebar-ad-image {
    width: 100%;
    height: 100%;
    border-radius: 12px;
    object-fit: cover;
    display: block;
    transition: all 0.3s ease;
}

.sidebar-ad-image:hover {
    transform: scale(1.02);
    filter: brightness(1.1);
}

.sidebar-ad-html {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    text-align: center;
    color: #3b82f6;
}

.sidebar-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
    font-size: 14px;
    text-align: center;
}

.sidebar-placeholder p {
    margin: 0;
    padding: 20px;
    border: 2px dashed rgba(59, 130, 246, 0.3);
    border-radius: 12px;
    background: rgba(59, 130, 246, 0.05);
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    .sidebar-left, .sidebar-right {
        display: none;
    }
}