.instructions-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: 48px 24px 72px;
    color: #f5f6fb;
}

.instructions-page__header {
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: linear-gradient(135deg, rgba(76, 110, 245, 0.16), rgba(200, 156, 0, 0.16));
    border: 1px solid rgba(76, 110, 245, 0.3);
    border-radius: 28px;
    padding: 40px;
    box-shadow: 0 24px 60px rgba(12, 17, 38, 0.45);
    backdrop-filter: blur(6px);
}

.instructions-page__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: rgba(76, 110, 245, 0.15);
    border: 1px solid rgba(76, 110, 245, 0.45);
    color: #b8c2ff;
    font-size: 13px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: 999px;
}

.instructions-page__title {
    margin: 0;
    font-size: 36px;
    font-weight: 700;
    color: #f7f9ff;
    letter-spacing: 0.01em;
}

.instructions-page__lead {
    margin: 0;
    font-size: 18px;
    line-height: 1.65;
    color: #b8c2d6;
    max-width: 720px;
}

.instructions-page__layout {
    display: grid;
    gap: 32px;
    margin-top: 40px;
    grid-template-columns: minmax(240px, 280px) minmax(0, 1fr);
    align-items: start;
}

.instructions-page__index {
    position: sticky;
    top: 24px;
    background: rgba(32, 35, 46, 0.88);
    border: 1px solid rgba(76, 110, 245, 0.2);
    border-radius: 20px;
    padding: 28px 24px;
    box-shadow: 0 18px 45px rgba(12, 17, 38, 0.45);
}

.instructions-page__subtitle {
    margin: 0 0 16px;
    font-size: 18px;
    font-weight: 600;
    color: #e8ecf8;
    letter-spacing: 0.01em;
}

.instructions-page__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 12px;
}

.instructions-page__link {
    display: block;
    padding: 10px 14px;
    border-radius: 12px;
    background: rgba(45, 49, 66, 0.6);
    color: #cfd7eb;
    font-weight: 500;
    transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
    border: 1px solid transparent;
}

.instructions-page__link:hover,
.instructions-page__link:focus {
    background: rgba(76, 110, 245, 0.18);
    border-color: rgba(76, 110, 245, 0.4);
    color: #f7f9ff;
    transform: translateX(4px);
    box-shadow: 0 12px 24px rgba(76, 110, 245, 0.18);
}

.instructions-page__sections {
    display: grid;
    gap: 28px;
}

.instructions-section {
    background: rgba(32, 35, 46, 0.88);
    border-radius: 24px;
    padding: 32px;
    border: 1px solid rgba(76, 110, 245, 0.15);
    box-shadow: 0 22px 48px rgba(12, 17, 38, 0.4);
    scroll-margin-top: 80px;
}

.instructions-section__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 16px;
}

.instructions-section__title {
    margin: 0;
    font-size: 24px;
    font-weight: 600;
    color: #f7f9ff;
}

.instructions-section__description {
    margin: 0 0 18px;
    font-size: 16px;
    line-height: 1.65;
    color: #b8c2d6;
}

.instructions-section__steps {
    margin: 0;
    padding: 0;
    display: grid;
    gap: 14px;
    counter-reset: step-counter;
    list-style: none;
}

.instructions-section__step {
    position: relative;
    padding-left: 52px;
    line-height: 1.65;
    color: #d9e1f5;
    counter-increment: step-counter;
}

.instructions-section__step::before {
    content: counter(step-counter, decimal-leading-zero);
    position: absolute;
    left: 0;
    top: 0;
    height: 32px;
    width: 40px;
    border-radius: 12px;
    background: rgba(76, 110, 245, 0.2);
    border: 1px solid rgba(76, 110, 245, 0.35);
    color: #f7f9ff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.06em;
}

.instructions-section__tips {
    margin-top: 20px;
    padding: 18px;
    border-radius: 16px;
    background: rgba(44, 48, 64, 0.9);
    border: 1px solid rgba(76, 110, 245, 0.22);
}

.instructions-section__tips-title {
    display: block;
    margin-bottom: 10px;
    font-size: 15px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #9fb2ff;
}

.instructions-section__tips-list {
    margin: 0;
    padding: 0;
    color: #cfd7eb;
    display: grid;
    gap: 8px;
    list-style: none;
}

.instructions-section__tip {
    position: relative;
    padding-left: 24px;
    line-height: 1.55;
}

.instructions-section__tip::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(200, 156, 0, 0.9);
    box-shadow: 0 0 12px rgba(200, 156, 0, 0.45);
}

.instructions-gallery {
    margin-top: 28px;
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.instructions-gallery__item {
    margin: 0;
    display: flex;
    flex-direction: column;
}

.instructions-gallery__preview {
    position: relative;
    display: block;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(76, 110, 245, 0.25);
    background: rgba(22, 24, 33, 0.85);
    box-shadow: 0 18px 40px rgba(12, 17, 38, 0.4);
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.instructions-gallery__preview::after {
    content: "Открыть";
    position: absolute;
    inset: 0;
    display: flex;
    align-items: flex-end;
    padding: 14px 18px;
    font-size: 12px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #f7f9ff;
    background: linear-gradient(180deg, rgba(10, 13, 24, 0) 35%, rgba(10, 13, 24, 0.75) 100%);
    opacity: 0;
    transition: opacity 0.18s ease;
}

.instructions-gallery__preview:hover,
.instructions-gallery__preview:focus {
    transform: translateY(-2px);
    box-shadow: 0 24px 52px rgba(76, 110, 245, 0.28);
}

.instructions-gallery__preview:hover::after,
.instructions-gallery__preview:focus::after {
    opacity: 1;
}

.instructions-gallery__preview img {
    width: 100%;
    height: auto;
    display: block;
}

.instructions-gallery__caption {
    margin: 12px 2px 0;
    display: grid;
    gap: 4px;
    color: #cfd7eb;
}

.instructions-gallery__caption-title {
    font-size: 15px;
    font-weight: 600;
}

.instructions-gallery__caption-text {
    font-size: 13px;
    line-height: 1.55;
    color: #aeb9d2;
}

.instruction-lightbox {
    width: min(92vw, 960px);
    max-height: 92vh;
    border: 1px solid rgba(76, 110, 245, 0.35);
    border-radius: 24px;
    background: rgba(18, 22, 34, 0.95);
    color: #d9e1f5;
    padding: 32px 32px 28px;
    box-shadow: 0 32px 80px rgba(4, 9, 24, 0.75);
    position: relative;
    overflow: hidden;
}

.instruction-lightbox::backdrop {
    background: rgba(8, 10, 18, 0.82);
    backdrop-filter: blur(4px);
}

.instruction-lightbox__close {
    position: absolute;
    top: 16px;
    right: 16px;
    border: none;
    background: rgba(32, 35, 46, 0.65);
    color: #f7f9ff;
    font-size: 26px;
    line-height: 1;
    border-radius: 12px;
    width: 42px;
    height: 42px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.18s ease, transform 0.18s ease;
}

.instruction-lightbox__close:hover,
.instruction-lightbox__close:focus {
    background: rgba(76, 110, 245, 0.35);
    transform: translateY(-1px);
}

.instruction-lightbox__body {
    display: grid;
    gap: 16px;
    height: 100%;
}

.instruction-lightbox__body img {
    max-width: 100%;
    max-height: 70vh;
    border-radius: 18px;
    border: 1px solid rgba(76, 110, 245, 0.25);
    box-shadow: 0 22px 48px rgba(12, 17, 38, 0.55);
    object-fit: contain;
    background: rgba(12, 14, 20, 0.8);
}

.instruction-lightbox__caption {
    font-size: 15px;
    line-height: 1.6;
    color: #cfd7eb;
    background: rgba(32, 35, 46, 0.8);
    border-radius: 16px;
    padding: 14px 18px;
    border: 1px solid rgba(76, 110, 245, 0.18);
}

.instruction-lightbox__caption-title {
    display: block;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 6px;
    color: #f7f9ff;
    letter-spacing: 0.01em;
}

.instruction-lightbox__caption-text {
    display: block;
    color: #cfd7eb;
    line-height: 1.6;
    font-size: 14px;
}

@media (max-width: 600px) {
    .instructions-gallery {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    }
}

@media (max-width: 1080px) {
    .instructions-page__layout {
        grid-template-columns: minmax(0, 1fr);
    }

    .instructions-page__index {
        position: static;
    }
}

@media (max-width: 768px) {
    .instructions-page {
        padding: 32px 16px 56px;
    }

    .instructions-page__header {
        padding: 28px;
        border-radius: 20px;
    }

    .instructions-page__title {
        font-size: 28px;
    }

    .instructions-page__lead {
        font-size: 16px;
    }

    .instructions-section {
        padding: 24px;
    }

    .instructions-section__header {
        flex-direction: column;
        align-items: flex-start;
    }

    .instruction-lightbox {
        padding: 24px 20px 20px;
        border-radius: 18px;
    }

    .instruction-lightbox__body img {
        max-height: 60vh;
    }

    .instruction-lightbox__close {
        top: 12px;
        right: 12px;
    }
}