/* GLOBAL RESET */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-bg-base: #F5F5F5;
    --color-card-surface: #FFFFFF;
    --color-text-dark: #1D2A3C;
    --color-accent-amber: #F0A55A;
    --color-accent-teal: #B3D0D9;
    --color-divider: #E5E7EB;
}

body.corporate-clean-root {
    background-color: var(--color-bg-base);
    color: var(--color-text-dark);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* HEADER: logo-left (Аккуратная плашка с названием слева в роли логотипа) */
.app-header-logo-left {
    background-color: var(--color-card-surface);
    border-bottom: 1px solid var(--color-divider);
    padding: 20px 16px;
}

.header-inner-wrapper {
    max-width: 1200px;
    margin: 0 auto;
}

.brand-logo-anchor {
    font-size: clamp(14px, 3.5vw, 16px);
    font-weight: 700;
    color: var(--color-text-dark);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    line-height: 1.4;
}

/* MAIN VIEWPORT */
.main-viewport-wrapper {
    max-width: 1140px;
    margin: 0 auto;
    padding: 32px 16px;
}

/* DESIGN SYSTEM: corporate-clean + rounded (14px) + dramatic shadow */
.product-showcase-panel {
    background-color: var(--color-card-surface);
    border-radius: 14px;
    box-shadow: 0 20px 60px rgba(29, 42, 60, 0.12);
    padding: 24px;
    margin-bottom: 48px;
    border: 1px solid rgba(29, 42, 60, 0.05);
}

@media (min-width: 768px) {
    .product-showcase-panel {
        padding: 48px;
    }
}

/* MOBILE-FIRST GRID */
.corporate-split-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 36px;
}

@media (min-width: 768px) {
    .corporate-split-grid {
        grid-template-columns: 1fr 1fr;
        align-items: start;
    }
}

/* PURE CSS GALLERY ENGINE (100% Изолированное скрытие радиокнопок) */
.gallery-column-side {
    width: 100%;
}

.pure-css-gallery {
    position: relative;
    width: 100%;
}

/* Жесткий абсолютный сброс любых системных точек радио-инпутов */
.sr-only-radio {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0,0,0,0) !important;
    border: 0 !important;
}

.stage-viewport {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 100%;
    overflow: hidden;
    border-radius: 12px;
    background-color: #FAFAFA;
    border: 1px solid var(--color-divider);
}

.stage-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.25s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.stage-slide img {
    max-height: 100%;
    object-fit: contain;
}

#view-1:checked ~ .stage-viewport .slide-1,
#view-2:checked ~ .stage-viewport .slide-2,
#view-3:checked ~ .stage-viewport .slide-3,
#view-4:checked ~ .stage-viewport .slide-4 {
    opacity: 1;
    z-index: 2;
}

.thumb-selector-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-top: 16px;
}

.thumb-btn {
    aspect-ratio: 1;
    cursor: pointer;
    border-radius: 8px;
    border: 2px solid transparent;
    background-color: var(--color-card-surface);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    transition: all 0.2s ease;
}

.thumb-btn img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
}

#view-1:checked ~ .thumb-selector-row .item-1,
#view-2:checked ~ .thumb-selector-row .item-2,
#view-3:checked ~ .thumb-selector-row .item-3,
#view-4:checked ~ .thumb-selector-row .item-4 {
    border-color: var(--color-accent-amber);
    box-shadow: 0 0 0 2px rgba(240, 165, 90, 0.2);
}

/* PRODUCT INFO TYPOGRAPHY */
.system-category-pill {
    display: inline-block;
    background-color: var(--color-accent-teal);
    color: var(--color-text-dark);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 4px 12px;
    border-radius: 6px;
    margin-bottom: 16px;
}

.main-product-h2 {
    font-size: clamp(20px, 4vw, 28px);
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-text-dark);
    letter-spacing: -0.01em;
    margin-bottom: 24px;
}

.corporate-description-body {
    font-size: 14px;
    color: #374151;
}

.corporate-description-body p {
    margin-bottom: 16px;
    line-height: 1.65;
}

.corporate-description-body p:last-child {
    margin-bottom: 0;
}

/* CTA BUTTON: gradient style + rounded 8px */
.action-portal-section {
    margin: 48px 0;
    text-align: center;
}

.btn-gradient-glow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-accent-amber) 0%, #E67E22 100%);
    color: #FFFFFF;
    font-size: 15px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    text-decoration: none;
    padding: 18px 56px;
    min-height: 52px;
    width: 100%;
    max-width: 380px;
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(240, 165, 90, 0.35);
    transition: all 0.3s ease;
}

.btn-gradient-glow:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(240, 165, 90, 0.5);
}

/* REVIEWS: AMAZON VERTICAL FEED (С горизонтальными делителями) */
.reviews-feed-container {
    background-color: var(--color-card-surface);
    border-radius: 14px;
    box-shadow: 0 20px 60px rgba(29, 42, 60, 0.12);
    padding: 24px;
    border: 1px solid rgba(29, 42, 60, 0.05);
}

@media (min-width: 768px) {
    .reviews-feed-container {
        padding: 48px;
    }
}

.feed-header-border {
    border-bottom: 2px solid var(--color-text-dark);
    padding-bottom: 16px;
    margin-bottom: 36px;
}

.feed-h3-title {
    font-size: 16px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-dark);
}

.vertical-reviews-stack {
    display: flex;
    flex-direction: column;
}

.corporate-review-item {
    border-bottom: 1px solid var(--color-divider);
    padding: 32px 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.corporate-review-item:first-child {
    padding-top: 0;
}

.corporate-review-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

@media (min-width: 768px) {
    .corporate-review-item {
        flex-direction: row;
        gap: 40px;
    }
    .review-author-cell {
        width: 25%;
        flex-shrink: 0;
    }
    .review-body-cell {
        flex: 1;
    }
}

.author-identity {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatar-box {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    overflow: hidden;
    background-color: var(--color-divider);
    flex-shrink: 0;
}

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

.author-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text-dark);
    display: block;
}

.verified-tag {
    font-size: 11px;
    font-weight: 600;
    color: #059669;
    display: block;
    margin-top: 2px;
}

.rating-stars-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.stars-glyphs {
    color: #F59E0B;
    font-size: 13px;
    letter-spacing: 1px;
}

.review-title-h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--color-text-dark);
}

.review-meta-date {
    font-size: 12px;
    color: #6B7280;
    margin-bottom: 2px;
}

.review-meta-specs {
    font-size: 12px;
    font-weight: 500;
    color: #4B5563;
    margin-bottom: 14px;
}

.review-comment-p {
    font-size: 14px;
    color: #374151;
    line-height: 1.6;
}

/* HIGH CONTRAST FOOTER */
.corporate-page-footer {
    background-color: var(--color-text-dark);
    padding: 64px 20px;
    margin-top: 80px;
}

.footer-inner-center {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-product-name {
    font-size: 12px;
    font-weight: 400;
    color: #9CA3AF;
    line-height: 1.7;
    max-width: 850px;
    margin: 0 auto 36px auto;
}

.footer-links-row {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 40px;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 28px;
}

.footer-link {
    color: #FFFFFF;
    font-size: 12px;
    font-weight: 600;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: var(--color-accent-amber);
}