.patents-section {
    background-color: var(--color-primary);
    padding: 72px 0 64px;
    font-family: inherit;
}

.patents-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 40px;
}

/* ---------- Header ---------- */
.patents-header {
    text-align: center;
    margin-bottom: 60px;
}

.patents-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.3;
    margin: 0 0 16px;
}

.patents-subtitle {
    font-size: 16px;
    color: var(--color-white);
    opacity: 0.9;
    line-height: 1.6;
    margin: 0;
}

/* ==========================================================
   GRID — Desktop / Tablet
   ========================================================== */
.patents-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    /*gap: 220px;*/
    margin-bottom: 52px;
    padding-top: 64px;
    position: relative;
}

/* ---------- Card ---------- */
.patents-card {
    background: var(--color-white);
    border-radius: 10px;
    box-shadow: 0px 0px 73px 0px #0000005c;
    padding: 28px 24px 24px;
    position: relative;
    /* overflow: visible so number can bleed upward */
    overflow: visible;
    max-width: 80%;
}

/* ---------- Ghost numbers — float above & between cards ---------- */
.patents-card__number {
    font-family: var(--font-main);
    position: absolute;
    /* Sit above the card top edge */
    top: -10%;
    /* Bleed toward the gap between the two cards */
    right: -15%;
    font-size: 150px;
    font-weight: 400;
    color: var(--color-gray-light);
    /*line-height: 1;*/
    pointer-events: none;
    user-select: none;
    z-index: 2;
    /*letter-spacing: -6px;*/
}

.patents-card:last-child .patents-card__number {
    right: -25%;
}

.patents-card__inner {
    position: relative;
    z-index: 1;
}

.patents-card__title {
    font-size: 22px;
    font-weight: 600;
    color: var(--color-primary);
    text-align: center;
    margin: 0 0 18px;
    line-height: 1.35;
}

.patents-card__image-wrap {
    width: 100%;
    border-radius: 6px;
    overflow: hidden;
}

.patents-card__image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
}

/* ==========================================================
   MOBILE SLIDER (hidden on desktop/tablet)
   ========================================================== */
.patents-slider {
    display: none;
    flex-direction: column;
    margin-bottom: 40px;
    padding-top: 56px; /* room for floating number */
    flex-shrink: 0;
    min-width: 100%;
    overflow: hidden;
}

.patents-slider__track {
    display: flex;
    width: 100%;
    max-width: 100%;
    flex-wrap: nowrap;
    transition: transform 0.35s ease;
}

.patents-slide {
    min-width: 100%;
    width: 100%;
    flex-shrink: 0;
}
.patents-card--slide {
    margin: 0;
    overflow: hidden;
}

/* Slider arrow buttons */
.patents-slider__controls {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 24px;
}

.patents-slider__btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1.5px solid rgba(255, 255, 255, 0.55);
    background: transparent;
    color: #ffffff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition:
        background var(--patents-transition),
        border-color var(--patents-transition);
    padding: 0;
}

.patents-slider__btn:hover,
.patents-slider__btn:focus-visible {
    background: rgba(255, 255, 255, 0.15);
    border-color: #ffffff;
    outline: none;
}

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

.patents-cta {
    display: flex;
    justify-content: center;
}

.patents-cta__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 280px;
    padding: 24px 58px;
    background: var(--color-white);
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    border-radius: 10px;
    font-size: 0.975rem;
    font-weight: 400;
    letter-spacing: 0.01em;
    text-decoration: none;
    white-space: nowrap;
    transition:
        background var(--transition),
        border-color var(--transition);
    box-shadow: none;
}

.patents-cta__btn:hover,
.patents-cta__btn:focus-visible {
    background: #f5f8ff;
    border-color: #a0b0d8;
    outline: none;
}

@media (max-width: 768px) {
    .patents-container {
        padding: 0 20px;
    }
    .patents-card__title {
        font-size: 17px;
    }
    .patents-card__number {
        font-size: 100px;
        right: -20%;
    }
    .patents-card:last-child .patents-card__number {
        right: -30%;
    }
}

@media (max-width: 530px) {
    .patents-header {
        margin: 0;
    }
    .patents-slider__track {
        display: flex;
        width: 100%;
    }

    .patents-card--slide .patents-card__image {
        width: 100%;
        height: 320px; /* ограничиваем высоту */
        object-fit: cover;
    }

    .patents-slider .patents-slider__btn {
        width: 48px;
        height: 48px;
        border-radius: 10px !important;
        background: var(--color-switcher) !important;
        border: none !important;
        color: var(--color-white);
    }

    .patents-slider .patents-slider__btn:hover {
        background: #2d4a8a !important;
    }

    .patents-grid {
        display: none;
    }

    .patents-slider {
        display: flex;
    }

    /* Карточка на всю ширину */
    .patents-card--slide {
        max-width: 100%;
        width: 100%;
        box-shadow: none;
        border-radius: 16px;
        padding: 20px 16px;
    }

    /* Скрываем большое число на мобилке */
    .patents-card--slide .patents-card__number {
        display: none;
    }

    /* Картинка побольше */
    .patents-card--slide .patents-card__image {
        width: 100%;
        height: auto;
    }

    .patents-card--slide .patents-card__title {
        font-size: 16px;
        margin-bottom: 14px;
    }
    .patents-slider__btn {
        width: 48px;
        height: 48px;
        border-radius: 10px;
        background: var(--color-primary);
        border: none;
    }

    .patents-slider__btn:hover {
        background: #2d4a8a;
    }
}