.article-section {
    padding: calc(var(--spacing-unit) * 10) 0;
    background: var(--color-cream);
}

.article-section__layout {
    display: grid;
    gap: calc(var(--spacing-unit) * 6);
}

.article-section__content {
    max-width: 42rem;
}

.article-section__content h2 {
    margin-top: 0;
}

.article-section__content h2,
.article-section__content h3 {
    padding-top: calc(var(--spacing-unit) * 2);
    margin-top: calc(var(--spacing-unit) * 4);
    border-top: 1px solid var(--color-border);
}

.article-section__content h2:first-of-type,
.article-section__content .section-label + h2 {
    border-top: none;
    padding-top: 0;
    margin-top: 0;
}

.article-section__content ul {
    list-style: none;
    margin: calc(var(--spacing-unit) * 3) 0;
}

.article-section__content li {
    position: relative;
    padding-left: calc(var(--spacing-unit) * 3);
    margin-bottom: calc(var(--spacing-unit) * 2);
    color: var(--color-ink-muted);
}

.article-section__content li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--color-gold);
    font-weight: 700;
}

.article-section__content li strong {
    color: var(--color-ink);
}

.article-section__sidebar {
    display: none;
}

.article-section__sidebar-card {
    background: var(--color-ink);
    color: var(--color-cream);
    border: var(--border-heavy);
    box-shadow: var(--shadow-offset);
    padding: calc(var(--spacing-unit) * 4);
}

.article-section__sidebar-title {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-gold);
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.article-section__schedule-item {
    display: flex;
    justify-content: space-between;
    padding: calc(var(--spacing-unit) * 1.75) 0;
    border-bottom: 1px solid rgba(248, 241, 233, 0.2);
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
}

.article-section__schedule-item:last-of-type {
    border-bottom: none;
}

.article-section__sidebar-note {
    margin-top: calc(var(--spacing-unit) * 3);
    font-size: var(--font-size-sm);
    color: rgba(248, 241, 233, 0.75);
    line-height: var(--line-height-base);
}

.pricing-ribbon {
    background: var(--color-gold);
    color: var(--color-ink);
    padding: calc(var(--spacing-unit) * 5) 0;
    border-top: var(--border-heavy);
    border-bottom: var(--border-heavy);
}

.pricing-ribbon__inner {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 3);
    align-items: flex-start;
}

.pricing-ribbon__price {
    font-family: var(--font-display);
    font-size: clamp(2.25rem, 4.5vw, 3.25rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1;
}

.pricing-ribbon__detail {
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    letter-spacing: 0.04em;
    margin-top: calc(var(--spacing-unit) * 1.5);
    opacity: 0.85;
}

@media (min-width: 768px) {
    .article-section__layout {
        grid-template-columns: 1fr 300px;
        align-items: start;
    }

    .article-section__sidebar {
        display: block;
        position: sticky;
        top: calc(var(--header-height) + var(--spacing-unit) * 3);
    }

    .pricing-ribbon__inner {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        width: 100%;
    }
}

@media (min-width: 1024px) {
    .article-section__layout {
        grid-template-columns: 1fr 320px;
        gap: calc(var(--spacing-unit) * 10);
    }
}