.sponsor-placeholder {
    border-radius: 16px;
    padding: 40px 20px;
    text-align: center;
    border: 2px dashed rgba(120,120,120,0.25);
    background: linear-gradient(135deg, #fdfbff, #f2f7ff, #fff7fb);
    transition: all .25s ease;
}

    .sponsor-placeholder:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    }

.sponsor-content {
    max-width: 420px;
    margin: auto;
}

.sponsor-icon {
    font-size: 28px;
    margin-bottom: 10px;
    color: #9aa6ff;
}

.sponsor-title {
    font-weight: 600;
    font-size: 18px;
    margin-bottom: 6px;
    color: #555;
}

.sponsor-subtitle {
    font-size: 14px;
    color: #888;
}

.sponsor-thumb {
    cursor: pointer;
    transition: transform 0.2s ease;
}

    .sponsor-thumb:hover {
        transform: scale(1.03);
    }

.sponsor-lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.85);
    justify-content: center;
    align-items: center;
}

    .sponsor-lightbox.open {
        display: flex;
    }

    .sponsor-lightbox img {
        max-height: 90vh;
        max-width: 90vw;
        object-fit: contain;
        border-radius: 8px;
    }