/* ============================================
   KITS
   ============================================ */

.kits-page,
.kit-page {
    flex: 1 0 auto;
}

.kit-page {
    --product-page-padding: var(--page-padding);
    min-height: 0;
    display: flex;
    flex-direction: column;
}

.kits-index {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: var(--space-16) var(--page-padding);
}

.kits-index-header h1,
.kits-empty h1 {
    font-family: var(--font-logo);
    font-size: clamp(2rem, 4vw, 4rem);
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--space-8);
}

.kits-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-5);
}

.kit-card {
    display: flex;
    flex-direction: column;
    min-width: 0;
    color: var(--color-black);
}

.kit-card-media {
    aspect-ratio: 1 / 1;
    display: grid;
    place-items: center;
    border-radius: var(--radius-md);
    background-color: var(--color-gray-50);
    overflow: hidden;
}

.kit-card-media img {
    width: 84%;
    height: 84%;
    object-fit: contain;
    transition: transform var(--transition-base);
}

.kit-card-media-hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.kit-card:hover .kit-card-media img {
    transform: scale(1.04);
}

.kit-card-copy {
    padding: var(--space-3) 0 0;
}

.kit-card-copy h2 {
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-1);
}

.kit-card-copy p {
    color: var(--color-gray-500);
    font-size: 0.9rem;
    line-height: 1.35;
    margin-bottom: var(--space-2);
}

.kit-card-copy span {
    font-size: 0.92rem;
    font-weight: 700;
}

.kits-empty {
    padding: var(--space-20) var(--page-padding);
    text-align: center;
}

#kit-content {
    display: flex;
    justify-content: center;
}

.kit-layout {
    --product-viewer-height: min(72vh, 720px);
    --kit-part-nav-height: 58px;
    display: grid;
    grid-template-columns: minmax(250px, 340px) minmax(360px, 560px) minmax(300px, 420px);
    column-gap: clamp(var(--space-5), 3vw, var(--space-10));
    row-gap: var(--space-6);
    width: 100%;
    max-width: 1480px;
    margin: 0 auto;
    padding: var(--space-6) var(--product-page-padding) var(--space-8);
    align-items: start;
    justify-content: center;
}

.kit-media-column {
    grid-column: 2;
    grid-row: 1;
    width: 100%;
    justify-self: center;
}

.kit-carousel {
    position: relative;
    width: 100%;
    height: var(--product-viewer-height);
    min-height: 420px;
}

.kit-carousel-track,
.kit-part-slide {
    position: absolute;
    inset: 0;
}

.kit-hero-image {
    position: absolute;
    inset: 0;
    z-index: 4;
    border-radius: var(--radius-md);
    background-color: var(--color-gray-50);
    opacity: 0;
    overflow: hidden;
    pointer-events: none;
    transition: opacity 0.36s ease, visibility 0.36s ease;
    visibility: hidden;
}

.kit-hero-image.active {
    opacity: 1;
    visibility: visible;
}

.kit-hero-image img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.kit-part-slide {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.36s ease, visibility 0.36s ease;
}

.kit-part-slide.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.kit-part-slide .product-image-section {
    width: 100%;
    max-width: 100%;
    height: 100%;
    min-height: 0;
    aspect-ratio: auto;
}

.kit-carousel-btn {
    position: absolute;
    top: 50%;
    z-index: 5;
    width: 52px;
    height: 64px;
    display: grid;
    place-items: center;
    color: rgba(17, 17, 17, 0.45);
    background-color: transparent;
    filter: drop-shadow(0 2px 10px rgba(255, 255, 255, 0.4));
    transform: translateY(-50%);
    transition: color var(--transition-fast), filter var(--transition-fast), transform var(--transition-fast);
}

.kit-carousel-btn:hover {
    color: var(--color-white);
    filter: drop-shadow(0 3px 12px rgba(17, 17, 17, 0.35));
    transform: translateY(-50%) scale(1.05);
}

.kit-carousel-btn-prev {
    left: var(--space-5);
}

.kit-carousel-btn-next {
    right: var(--space-5);
}

.kit-carousel-btn svg {
    width: 34px;
    height: 34px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2.1;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.kit-part-dots {
    display: grid;
    justify-items: center;
    gap: var(--space-2);
    padding-top: var(--space-4);
}

.kit-part-dot-row {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
}

.kit-part-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background-color: var(--color-gray-300);
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.kit-part-dot.active {
    background-color: var(--color-black);
    transform: scale(1.16);
}

.kit-part-indicator {
    color: var(--color-gray-500);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    line-height: 1;
    text-transform: uppercase;
}

.kit-summary,
.kit-part-details {
    width: 100%;
    min-height: calc(var(--product-viewer-height) + var(--kit-part-nav-height));
    display: flex;
    flex-direction: column;
    justify-self: center;
    padding-top: var(--space-4);
}

.kit-summary {
    grid-column: 3;
    grid-row: 1;
    max-width: 340px;
}

.kit-summary h1 {
    font-family: var(--font-logo);
    font-size: 2.75rem;
    font-weight: 700;
    letter-spacing: 0;
    line-height: 1.15;
    margin-bottom: var(--space-2);
}

.kit-summary .product-description {
    margin-top: var(--space-8);
}

.kit-part-details {
    grid-column: 1;
    grid-row: 1;
    max-width: 420px;
}

.kit-part-controls-wrap {
    position: relative;
    min-height: 250px;
    margin-top: 0;
}

.kit-part-controls {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(8px);
    transition: opacity 0.24s ease, visibility 0.24s ease, transform 0.24s ease;
}

.kit-part-controls:not(.active) {
    position: absolute;
    inset: 0;
}

.kit-part-controls.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

.kit-part-count {
    display: block;
    color: var(--color-gray-400);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    line-height: 1.2;
    margin-bottom: var(--space-2);
    text-transform: uppercase;
}

.kit-part-controls h2 {
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-2);
}

.kit-part-controls > p {
    color: var(--color-gray-600);
    font-size: 0.92rem;
    line-height: 1.45;
    margin-bottom: var(--space-5);
}

.kit-bottom-stack {
    margin-top: auto;
}

.kit-savings-note {
    margin: 0 0 var(--space-3);
    color: var(--color-gray-500);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    line-height: 1.2;
    text-transform: uppercase;
}

.kit-detail-price {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: var(--space-2);
}

.kit-price-original {
    color: var(--color-gray-400);
    font-size: 0.82em;
    font-weight: 600;
    text-decoration: line-through;
    text-decoration-thickness: 2px;
}

.kit-price-divider {
    color: var(--color-gray-300);
    font-size: 0.7em;
}

.kit-price-sale {
    color: var(--color-black);
}

@media (max-width: 1100px) {
    .kits-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .kit-layout {
        --product-viewer-height: min(66vh, 620px);
        grid-template-columns: minmax(220px, 300px) minmax(300px, 1fr) minmax(240px, 320px);
        gap: var(--space-5);
    }

    .kit-part-details {
        grid-column: 1;
        grid-row: 1;
        padding-top: var(--space-4);
    }

    .kit-media-column {
        grid-column: 2;
        grid-row: 1;
    }

    .kit-summary {
        grid-column: 3;
        grid-row: 1;
        max-width: 320px;
        padding-top: var(--space-4);
    }

    .kit-carousel {
        height: min(66vh, 620px);
        min-height: 360px;
    }

    .kit-summary h1 {
        font-size: 2.25rem;
    }
}

@media (min-width: 1200px) {
    .kit-page {
        --product-page-padding: clamp(80px, 10vw, 160px);
    }
}

@media (max-width: 900px) {
    .kits-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    #kit-content {
        display: block;
    }

    .kit-layout {
        --product-viewer-height: auto;
        grid-template-columns: 1fr;
        gap: var(--space-4);
        padding: 0 var(--product-page-padding) var(--space-8);
    }

    .kit-summary {
        display: contents;
    }

    .kit-carousel {
        width: 100%;
        height: clamp(430px, 68svh, 620px);
        min-height: 430px;
        aspect-ratio: auto;
    }

    .kit-part-slide .product-image-stack {
        padding: var(--space-8);
    }

    .kit-part-slide .product-page-image {
        max-width: 74%;
        max-height: 82%;
    }

    .kit-summary > h1,
    .kit-summary > .product-tagline,
    .kit-summary > .product-description,
    .kit-summary > .kit-bottom-stack {
        grid-column: 1;
        max-width: 100%;
        width: 100%;
    }

    .kit-summary > h1,
    .kit-summary > .product-tagline,
    .kit-summary > .product-description {
        order: 1;
    }

    .kit-summary h1 {
        font-size: 1.75rem;
    }

    .kit-summary .product-description {
        margin-top: var(--space-5);
    }

    .kit-bottom-stack {
        order: 4;
        margin-top: var(--space-6);
    }

    .kit-media-column {
        order: 2;
        grid-column: auto;
        grid-row: auto;
        width: 100%;
        justify-self: center;
        margin-inline: auto;
    }

    .kit-part-details {
        order: 3;
        grid-column: auto;
        grid-row: auto;
        max-width: 100%;
        min-height: 0;
        padding-top: 0;
    }

    .kit-part-controls-wrap {
        min-height: 0;
        margin-top: var(--space-6);
    }

    .kit-hero-image img {
        object-fit: cover;
    }
}

@media (max-width: 560px) {
    .kits-grid {
        grid-template-columns: 1fr;
    }

    .kits-index {
        padding-top: var(--space-10);
    }

    .kit-carousel {
        width: 100%;
        height: clamp(400px, 66svh, 560px);
        min-height: 400px;
    }

    .kit-media-column {
        width: 100%;
    }

    .kit-part-slide .product-image-stack {
        padding: var(--space-6);
    }

    .kit-part-slide .product-page-image {
        max-width: 68%;
        max-height: 80%;
    }
}