/* ==========================================================================
   Dobrý futon — Stylopis detailu produktu (podle grafického návrhu)
   ========================================================================== */

/* ─── Drobečková navigace ───────────────────────────────────────────────── */
.breadcrumb-nav {
    padding: 16px 0;
    font-size: 13.5px;
    color: #7D837B;
}

.breadcrumb-list {
    list-style: none;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0;
    padding: 0;
}

.breadcrumb-item {
    display: inline-flex;
    align-items: center;
}

.breadcrumb-link {
    color: #64748B;
    text-decoration: none;
    transition: color 0.15s;
}

.breadcrumb-link:hover {
    color: #1E251D;
    text-decoration: underline;
}

.breadcrumb-separator {
    color: #CBD5E1;
    font-size: 10px;
    margin: 0 2px;
}

.breadcrumb-item.active {
    color: #1E251D;
    font-weight: 500;
}

/* ─── Hlavní produktová sekce ────────────────────────────────────────────── */
.product-detail-section {
    padding: 16px 0 60px 0;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 53% 47%;
    gap: 48px;
    align-items: start;
}

/* ─── Levý sloupec: Galerie ─────────────────────────────────────────────── */
.product-media-column {
    position: relative;
}

.product-gallery-main {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 2.75;
    background: #FAF7F2;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid #ECE7DE;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

.gallery-main-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: opacity 0.18s ease-in-out;
}

.product-badge-favorite {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(6px);
    border: 1px solid #E2DCD2;
    border-radius: 20px;
    padding: 6px 14px;
    font-size: 13px;
    font-weight: 600;
    color: #2C3A29;
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
    z-index: 2;
}

.product-badge-favorite i {
    color: #768870;
    font-size: 12px;
}

.gallery-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid #E0DAD0;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.12);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2C3A29;
    font-size: 14px;
    transition: all 0.15s ease;
    z-index: 2;
}

.gallery-arrow:hover {
    background: #FFFFFF;
    transform: translateY(-50%) scale(1.08);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.16);
}

.gallery-arrow-prev {
    left: 14px;
}

.gallery-arrow-next {
    right: 14px;
}

/* Náhledy fotografií */
.product-thumbnails-strip {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    margin-top: 12px;
}

.thumb-item {
    aspect-ratio: 4 / 3;
    border: 2px solid transparent;
    border-radius: 6px;
    overflow: hidden;
    padding: 0;
    background: #FAF7F2;
    cursor: pointer;
    transition: all 0.15s ease;
}

.thumb-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.thumb-item:hover {
    opacity: 0.85;
}

.thumb-item.active {
    border-color: #2C3A29;
    box-shadow: 0 0 0 1px #2C3A29;
}

/* ─── Produktové taby (Popis, Složení, Údržba...) ────────────────────────── */
.product-tabs-wrapper {
    margin-top: 36px;
    border-top: 1px solid #ECE7DE;
    padding-top: 8px;
}

.product-tabs-nav {
    display: flex;
    gap: 28px;
    border-bottom: 2px solid #EBE6DC;
}

.tab-btn {
    background: none;
    border: none;
    padding: 14px 4px;
    font-size: 13.5px;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: #7D837B;
    cursor: pointer;
    position: relative;
    transition: color 0.15s ease;
    margin-bottom: -2px;
}

.tab-btn:hover {
    color: #1E251D;
}

.tab-btn.active {
    color: #1E251D;
    border-bottom: 3px solid #3F4E3C;
}

.product-tab-content {
    padding: 20px 0;
}

.tab-panel {
    display: none;
    animation: fadeIn 0.2s ease-in-out;
}

.tab-panel.active {
    display: block;
}

.rich-text {
    font-size: 14.5px;
    line-height: 1.7;
    color: #4A4F48;
}

.rich-text strong {
    color: #1E251D;
}

/* Informační box o možnostech výroby */
.custom-variant-notice {
    margin-top: 24px;
    background: #F4F6F2;
    border: 1px solid #DFE7DD;
    border-radius: 8px;
    padding: 14px 18px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.notice-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #E4ECE1;
    color: #486A47;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.notice-body {
    display: flex;
    flex-direction: column;
    font-size: 13.5px;
    color: #2C3A29;
}

.notice-body strong {
    font-size: 14px;
    font-weight: 700;
}

.notice-body span {
    color: #64748B;
    font-size: 13px;
}

/* ─── Pravý sloupec: Hlavička produktu & Konfigurátor ────────────────────── */
.product-config-column {
    padding-top: 4px;
}

.product-title {
    font-size: 28px;
    font-weight: 700;
    color: #1E251D;
    line-height: 1.25;
    margin: 0 0 12px 0;
}

.product-summary {
    font-size: 14.5px;
    line-height: 1.6;
    color: #555E52;
    margin-bottom: 18px;
}

/* Klíčové benefity */
.product-benefits-list {
    list-style: none;
    margin: 0 0 22px 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: #2C3A29;
    font-weight: 500;
}

.benefit-icon {
    color: #486A47;
    font-size: 13px;
    flex-shrink: 0;
}

/* Cenový blok */
.product-price-box {
    margin-bottom: 22px;
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.price-main {
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.price-label {
    font-size: 16px;
    font-weight: 500;
    color: #64748B;
}

.price-value {
    font-size: 32px;
    font-weight: 800;
    color: #1E251D;
    letter-spacing: -0.02em;
}

.price-vat {
    font-size: 13.5px;
    color: #7D837B;
}

/* ─── Konfigurátor krok za krokem ───────────────────────────────────────── */
.configurator-form {
    background: #FAF8F5;
    border: 1px solid #ECE7DE;
    border-radius: 10px;
    padding: 22px;
}

.config-step {
    margin-bottom: 20px;
    padding-bottom: 18px;
    border-bottom: 1px solid #EBE6DC;
}

.config-step:last-of-type {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.config-step-header {
    margin-bottom: 10px;
}

.config-step-header.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.step-label {
    font-size: 14px;
    font-weight: 700;
    color: #1E251D;
}

/* Krok 1: Vrstvy bavlny */
.cotton-pills-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 8px;
}

.pill-option {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    border: 1.5px solid #D8D2C6;
    border-radius: 6px;
    background: #FFFFFF;
    cursor: pointer;
    font-size: 13.5px;
    font-weight: 500;
    color: #4A4F48;
    transition: all 0.15s ease;
    user-select: none;
}

.pill-option input[type="radio"] {
    display: none;
}

.pill-check {
    display: none;
    color: #486A47;
    font-size: 12px;
}

.pill-option.active {
    border-color: #3F4E3C;
    background: #F7F9F5;
    font-weight: 600;
    color: #1E251D;
}

.pill-option.active .pill-check {
    display: inline-block;
}

.help-link {
    font-size: 13px;
    color: #486A47;
    font-weight: 500;
    text-decoration: none;
    display: inline-block;
    transition: color 0.15s;
}

.help-link:hover {
    color: #2C3A29;
    text-decoration: underline;
}

/* Krok 2: Vzorník barev – obdélníkové vzorky látek (Možnost 1) */
.swatches-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 12px;
}

@media (max-width: 480px) {
    .swatches-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.color-swatch-btn {
    position: relative;
    width: 100%;
    height: 28px;
    border-radius: 3px;
    border: 1px solid rgba(0, 0, 0, 0.15);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    padding: 0;
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
    outline: none;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: block;
}

.color-swatch-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.18);
    border-color: rgba(0, 0, 0, 0.3);
}

.color-swatch-btn.active {
    border: 2px solid #3F4E3C;
    box-shadow: 0 0 0 2px rgba(63, 78, 60, 0.25), 0 3px 8px rgba(0, 0, 0, 0.16);
    transform: translateY(-1px);
}

/* Značka výběru v rohu aktivního proužku */
.color-swatch-btn.active::after {
    content: "\f00c";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 11px;
    color: #FFFFFF;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8), 0 0 2px rgba(0,0,0,0.9);
}

.selected-color-info {
    font-size: 13.5px;
    color: #4A4F48;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    margin-top: 8px;
}

.selected-color-name {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.selected-color-info strong {
    color: #1E251D;
}

.color-check-icon {
    color: #486A47;
    font-size: 13px;
}

.selected-color-surcharge {
    font-size: 13.5px;
    color: #4A4F48;
    background: transparent;
    padding: 0;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: color 0.15s ease;
}

.selected-color-surcharge strong {
    color: #1E251D;
    font-weight: 600;
    transition: color 0.15s ease;
}

.selected-color-surcharge.has-surcharge {
    background: transparent;
    border: none;
    color: #92400E;
}

.selected-color-surcharge.has-surcharge strong {
    color: #92400E;
}

/* ─── 4. Výběr barvy knoflíků ────────────────────────────────────────────── */
.button-option-standard {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 18px;
    border: 1.5px solid #D8D2C4;
    border-radius: 8px;
    background: #FFFFFF;
    cursor: pointer;
    user-select: none;
    transition: all 0.2s ease;
    margin-top: 4px;
}

.button-option-standard:hover {
    border-color: #3F4E3C;
}

.button-option-standard.active {
    border-color: #3F4E3C;
    background: #F8F9F6;
}

.button-standard-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.button-standard-radio {
    width: 18px;
    height: 18px;
    margin: 0;
    cursor: pointer;
    accent-color: #3F4E3C;
    flex-shrink: 0;
}

.button-swatch-radio,
.button-radio {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
    margin: 0;
}

.button-standard-text {
    font-size: 14.5px;
    font-weight: 500;
    color: #1E251D;
}

.button-standard-price {
    font-size: 13.5px;
    color: #4A4F48;
    font-weight: 500;
}

.button-swatches-title {
    font-size: 14px;
    font-weight: 500;
    color: #1E251D;
    margin: 16px 0 14px 0;
}

.button-swatches-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 8px;
    align-items: flex-start;
}

.button-swatch-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
    text-align: center;
}

.button-dot {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: block;
    position: relative;
    border: 1px solid rgba(0, 0, 0, 0.12);
    box-shadow: 
        0 3px 6px rgba(0, 0, 0, 0.16),
        inset 0 2px 4px rgba(255, 255, 255, 0.35),
        inset 0 -2px 4px rgba(0, 0, 0, 0.22);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    flex-shrink: 0;
}

.button-dot::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 8px;
    height: 8px;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 0, 0, 0.25) 0%, rgba(0, 0, 0, 0.05) 70%, transparent 100%);
    pointer-events: none;
}

.button-swatch-item:hover .button-dot {
    transform: translateY(-2px);
    box-shadow: 
        0 5px 10px rgba(0, 0, 0, 0.22),
        inset 0 2px 4px rgba(255, 255, 255, 0.45),
        inset 0 -2px 4px rgba(0, 0, 0, 0.25);
}

.button-swatch-item.active .button-dot {
    box-shadow: 
        0 0 0 2px #FAF9F5, 
        0 0 0 4.5px #3F4E3C, 
        0 4px 8px rgba(0, 0, 0, 0.2);
    transform: translateY(-1px);
}

.button-swatch-name {
    font-size: 12px;
    color: #4A4F48;
    line-height: 1.2;
    text-align: center;
    word-break: break-word;
}

.button-swatch-item.active .button-swatch-name {
    font-weight: 700;
    color: #1E251D;
}

@media (max-width: 640px) {
    .button-swatches-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 14px 6px;
    }
}

/* Krok 3: Rozměr futonu */
.size-guide-link {
    font-size: 13px;
    color: #64748B;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: color 0.15s;
}

.size-guide-link:hover {
    color: #1E251D;
    text-decoration: underline;
}

.select-wrapper {
    position: relative;
    width: 100%;
}

.custom-dimension-select {
    width: 100%;
    padding: 11px 40px 11px 14px;
    border: 1.5px solid #D8D2C6;
    border-radius: 6px;
    background: #FFFFFF;
    font-size: 14.5px;
    font-weight: 500;
    color: #1E251D;
    appearance: none;
    cursor: pointer;
    transition: border-color 0.15s;
}

.custom-dimension-select:focus {
    outline: none;
    border-color: #3F4E3C;
    box-shadow: 0 0 0 3px rgba(63, 78, 60, 0.12);
}

.select-chevron {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: #7D837B;
    font-size: 12px;
}

/* Celková cena pod konfigurátorem */
.config-summary-price {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 2px 0 4px 0;
    margin-top: 0;
    border-top: none;
    flex-wrap: wrap;
    gap: 8px;
}

.config-price-label {
    font-size: 15px;
    font-weight: 600;
    color: #4A4F48;
}

.config-price-value-wrap {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.config-price-value {
    font-size: 28px;
    font-weight: 800;
    color: #1E251D;
    letter-spacing: -0.02em;
}

.config-price-vat {
    font-size: 13px;
    color: #7D837B;
}

/* ─── Nákupní akce: Množství a Přidat do košíku ──────────────────────────── */
.purchase-row {
    display: flex;
    gap: 12px;
    margin-top: 14px;
}

.quantity-stepper {
    display: inline-flex;
    border: 1.5px solid #D8D2C6;
    border-radius: 6px;
    background: #FFFFFF;
    overflow: hidden;
    height: 48px;
    flex-shrink: 0;
}

.stepper-btn {
    width: 40px;
    height: 100%;
    background: none;
    border: none;
    font-size: 18px;
    color: #4A4F48;
    cursor: pointer;
    transition: background 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stepper-btn:hover {
    background: #F4EFE6;
}

.quantity-stepper input {
    width: 44px;
    height: 100%;
    border: none;
    text-align: center;
    font-size: 15px;
    font-weight: 700;
    color: #1E251D;
    outline: none;
    -moz-appearance: textfield;
}

.quantity-stepper input::-webkit-outer-spin-button,
.quantity-stepper input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.btn-add-cart {
    flex: 1;
    height: 48px;
    background: #3F4E3C;
    color: #FFFFFF;
    border: none;
    border-radius: 6px;
    font-size: 14.5px;
    font-weight: 700;
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s, box-shadow 0.2s;
    box-shadow: 0 4px 12px rgba(63, 78, 60, 0.24);
}

.btn-add-cart:hover {
    background: #2C3A29;
    box-shadow: 0 6px 16px rgba(44, 58, 41, 0.32);
}

.btn-add-cart:active {
    transform: scale(0.98);
}

.btn-add-cart.added {
    background: #2E7D32;
}

/* Záruky pod tlačítkem */
.trust-badges-card {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    font-size: 13.5px;
    color: #4A4F48;
}

.trust-badge-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.trust-icon {
    color: #3F4E3C;
    font-size: 15px;
    width: 18px;
    text-align: center;
}

/* ─── Související produkty: Mohlo by se vám líbit ───────────────────────── */
.related-products-section {
    padding: 60px 0 50px 0;
    background: #FAF8F5;
    border-top: 1px solid #ECE7DE;
}

.section-header.center {
    text-align: center;
    margin-bottom: 36px;
}

.related-slider-container {
    position: relative;
    width: 100%;
}

.related-grid {
    display: flex;
    gap: 16px;
    width: 100%;
    overflow-x: auto;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding: 6px 4px 18px 4px;
}

.related-grid::-webkit-scrollbar {
    display: none;
}

.related-card {
    flex: 0 0 224px;
    width: 224px;
    background: #FFFFFF;
    border: 1px solid #ECE7DE;
    border-radius: 8px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.related-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.08);
}

.related-img-box {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    background: #FAF7F2;
    overflow: hidden;
}

.related-img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.related-card:hover .related-img-box img {
    transform: scale(1.05);
}

.related-badge {
    position: absolute;
    top: 8px;
    left: 8px;
    font-size: 10px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    z-index: 2;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
}

.related-badge.new {
    background: #16A34A;
    color: #FFFFFF;
}

.related-badge.featured {
    background: #6F8043;
    color: #FFFFFF;
}

.related-info {
    padding: 14px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.related-title {
    font-size: 14px;
    font-weight: 700;
    color: #1E251D;
    line-height: 1.35;
    margin: 0 0 6px 0;
}

.related-desc {
    font-size: 12.5px;
    color: #7D837B;
    line-height: 1.4;
    margin-bottom: 12px;
    flex: 1;
}

.related-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    padding-top: 10px;
    border-top: 1px solid #F4EFE6;
}

.related-price {
    font-size: 14.5px;
    font-weight: 700;
    color: #1E251D;
}

.related-arrow {
    color: #64748B;
    font-size: 12px;
    transition: transform 0.15s, color 0.15s;
}

.related-card:hover .related-arrow {
    color: #3F4E3C;
    transform: translateX(4px);
}

.related-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid #E0DAD0;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2C3A29;
    font-size: 13px;
    cursor: pointer;
    z-index: 3;
    transition: all 0.15s ease;
}

.related-nav-btn:hover {
    background: #FFFFFF;
    transform: translateY(-50%) scale(1.08);
}

.related-nav-btn.prev {
    left: -18px;
}

.related-nav-btn.next {
    right: -18px;
}

@media (max-width: 640px) {
    .related-card {
        flex: 0 0 195px;
        width: 195px;
    }
}

/* ─── 4 Pilíře výhod (společné) ─────────────────────────────────────────── */
.value-props-banner {
    background: #F4EFE6;
    border-top: 1px solid #E8E2D5;
    padding: 36px 0;
}

.value-props-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.value-prop-card {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.value-prop-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: #FFFFFF;
    color: #486A47;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.value-prop-title {
    font-size: 14.5px;
    font-weight: 700;
    color: #1E251D;
    margin: 0 0 4px 0;
}

.value-prop-desc {
    font-size: 13px;
    color: #64748B;
    line-height: 1.45;
    margin: 0;
}

/* ─── Responzivní chování (Tablet & Mobil) ───────────────────────────────── */
@media (max-width: 960px) {
    .product-detail-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .value-props-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 640px) {
    .product-title {
        font-size: 24px;
    }

    .price-value {
        font-size: 28px;
    }

    .cotton-pills-group {
        flex-direction: column;
    }

    .purchase-row {
        flex-direction: column;
    }

    .quantity-stepper {
        width: 100%;
        justify-content: space-between;
    }

    .btn-add-cart {
        width: 100%;
    }

    .value-props-grid {
        grid-template-columns: 1fr;
    }

    .related-nav-btn {
        display: none;
    }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}