.portfolio-section {
    background: var(--color-white);
    padding: 64px 0 56px;
    font-family: inherit;
}

.portfolio-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Title ---------- */
.portfolio-title {
    text-align: center;
    font-size: 24px;
    font-weight: 600;
    color: var(--color-primary);
    margin: 0 0 28px;
    line-height: 1.3;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    margin-bottom: 32px;
}

.portfolio-item {
    overflow: hidden;
    border-radius: 4px;
    aspect-ratio: 1 / 1;
    background: #e8edf5;
}

.portfolio-item__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.35s ease;
}

.portfolio-item:hover .portfolio-item__img {
    transform: scale(1.04);
}

/* Hidden — revealed by JS on "load more" */
.portfolio-item--hidden {
    display: none;
}

.portfolio-loadmore {
    display: flex;
    justify-content: center;
    margin-top: 4px;
}

.portfolio-loadmore--done {
    display: none;
}

.portfolio-loadmore__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 20px 64px;
    background: var(--color-primary);
    color: var(--color-white-light);
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 400;
    cursor: pointer;
    letter-spacing: 0.01em;
    transition: background var(--transition);
}

.portfolio-loadmore__btn:hover,
.portfolio-loadmore__btn:focus-visible {
    background: #3d5a9a;
    outline: none;
}

.portfolio-slider {
    display: none;
    flex-direction: column;
    overflow: hidden; /* ← перенести сюда */
    border-radius: 10px; /* ← тоже сюда, чтобы скруглял обёртку */
}

.portfolio-slider__track {
    display: flex;
    width: 100%;
    transition: transform 0.35s ease;
}

.portfolio-slide {
    min-width: 100%;
    flex-shrink: 0;
}

.portfolio-slide__img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    display: block;
    border-radius: 10px;
}

.portfolio-slider__controls {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 20px;
}

.portfolio-slider__btn {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    border: 1.5px solid rgba(255, 255, 255, 0.55);
    background: var(--color-switcher);
    color: var(--color-white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition:
        background var(--patents-transition),
        border-color var(--patents-transition);
    padding: 0;
}

.portfolio-slider__btn:hover,
.portfolio-slider__btn:focus-visible {
    background: #1d4f96;
    outline: none;
}

.portfolio-slider__btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .portfolio-item:nth-child(n + 5) {
        display: none;
    }
    .portfolio-item:nth-child(n + 5).portfolio-item--visible {
        display: block;
    }
}

@media (max-width: 360px) {
    .portfolio-grid {
        display: none; /* ← скрыть grid */
        grid-template-columns: repeat(1, 1fr);
    }
    .portfolio-slider {
        display: flex; /* ← показать слайдер */
    }
    .portfolio-section {
        padding: 35px 0;
    }
    .portfolio-container {
        padding: 0 15px;
    }
    .portfolio-loadmore {
        display: none;
    }
    .portfolio-item {
        aspect-ratio: 0;
        border-radius: 10px;
    }
    .portfolio-item:nth-child(n + 2) {
        display: none;
    }
    .portfolio-item:nth-child(n + 2).portfolio-item--visible {
        display: block;
    }
    /*#272C48   */
}