/* ============================================
   Боковая колонка
   ============================================ */

.sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--gap);
}

.sidebar-block {
    background: var(--color-white);
    border-radius: var(--card-border-radius);
    padding: var(--gap);
    box-shadow: var(--card-shadow);
}

.sidebar-block__title {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--color-border);
    position: relative;
}

.sidebar-block__title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 30px;
    height: 2px;
    background: var(--color-primary);
}

.sidebar-block__list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* --- Рекламный блок --- */
.sidebar-ad {
    background: var(--color-border-light);
    border-radius: var(--card-border-radius);
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-lighter);
    font-size: var(--font-size-sm);
}

@media (max-width: 900px) {
    .main-layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        display: none;
    }
}