/* ================================================================
   11. СЕКЦИИ КОНТЕНТА (about, advantages, cards, tabs)
================================================================ */
.about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about__image {
    position: relative;
    z-index: 10;
    border-radius: var(--radius-xl);
    overflow: hidden;
    aspect-ratio: 16/9;
    box-shadow: var(--shadow-xl);
}

.about__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about__decor {
    position: absolute;
    width: 120px;
    height: 120px;
    border: 3px solid var(--primary-blue-light);
    border-radius: var(--radius-lg);
    top: -20px;
    right: -20px;
    z-index: var(--z-bg);
    opacity: 0.4;
}

.about__content {
    z-index: 6;
}

.about__content h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.about__content p {
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.about__features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: relative;
}

.about__feature {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: background var(--transition), border-color var(--transition);
    position: relative;
    overflow: visible;
}

.about__feature:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary-blue-light);
}

.about__feature > span:first-child {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.about__feature-text {
    font-weight: 500;
    color: var(--text-primary);
}

.about__feature--with-image {
    cursor: pointer;
}

.about__preview {
    position: absolute;
    bottom: calc(100% + 0.5rem);
    left: 0;
    right: 0;
    aspect-ratio: 16/9;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    background: var(--bg-tertiary);
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
    z-index: 100;
    pointer-events: none;
}

.about__preview.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.about__preview img,
.about__preview .placeholder-mini {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity var(--transition);
}

.about__preview [data-preview].active {
    opacity: 1;
}

.about__preview .placeholder-mini {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: 2px dashed var(--border-color);
    object-fit: initial;
}

.about__feature-touch {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-left: auto;
    opacity: 0.5;
    transition: opacity var(--transition);
    color: var(--text-secondary);
    flex-shrink: 0;
}

.about__feature-touch .icon {
    width: 16px;
    height: 16px;
}

.about__feature-touch .icon--mobile {
    display: none;
}

.about__feature-touch::after {
    content: 'Наведите для просмотра';
    font-size: 0.9rem;
    white-space: nowrap;
}

.about__feature--with-image:hover .about__feature-touch,
.about__feature--with-image.active .about__feature-touch {
    opacity: 0;
}