.adsense-placement {
    box-sizing: border-box;
    width: 100%;
    overflow: hidden;
    border: 0;
    background: transparent;
    color: #64748b;
    text-align: center;
}

.adsense-placement__label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: Inter, system-ui, sans-serif;
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    line-height: 1;
    text-transform: uppercase;
}

.adsense-placement--article,
.adsense-placement--reading,
.adsense-placement--vocabulary {
    min-height: 280px;
    margin: 2.5rem 0;
    padding: 1rem 0;
    border-top: 1px solid #e2e8f0;
    border-bottom: 1px solid #e2e8f0;
}

.adsense-placement--exam-sidebar {
    position: static;
    min-height: 250px;
    margin: 0;
    padding: 1rem 0;
}

.adsense-placement--exam-bottom {
    position: static;
    min-height: 250px;
    margin: 2rem 0 0;
    padding: 1.25rem 0 0;
    border-top: 1px solid #d7dee8;
}

@media (max-width: 900px) {
    .adsense-placement--exam-sidebar {
        grid-column: 1 / -1;
        min-height: 190px;
        margin-top: 0;
    }
}

@media (max-width: 640px) {
    .adsense-placement--article,
    .adsense-placement--reading,
    .adsense-placement--vocabulary,
    .adsense-placement--exam-bottom {
        min-height: 220px;
    }
}

.adsense-placement--reading {
    position: static;
    margin-block: 3rem;
}

.adsense-placement--reading:has(ins[data-ad-status="unfilled"]) {
    display: none;
}

.reading-layout { max-width: 760px; margin-inline: auto; }
.reading-layout__content { min-width: 0; }
.reading-ad-sidebar { display: none; }
.adsense-placement--reading-sidebar {
    position: static;
    width: 300px;
    min-height: 280px;
    padding-block: 1rem;
}
.adsense-placement--reading-sidebar:has(ins[data-ad-status="unfilled"]) { display: none; }
@media (min-width: 1200px) {
    .adsense-eligible .reading-layout:has(.reading-ad-sidebar ins:not([data-ad-status="unfilled"])) {
        display: grid;
        grid-template-columns: minmax(0, 760px) 300px;
        gap: 32px;
        max-width: 1092px;
        align-items: start;
    }
    .adsense-eligible .reading-ad-sidebar:has(ins:not([data-ad-status="unfilled"])) { display: block; }
}

@media print {
    .reading-layout { display: block !important; max-width: 760px !important; }
    .reading-ad-sidebar { display: none !important; }
    .adsense-placement {
        display: none !important;
    }
}