/* ==========================================================================
   Listing — property and development detail
   ========================================================================== */

/* --------------------------------------------------------------------------
   Gallery
   Mobile: a scroll-snap strip that swipes natively. Desktop: an editorial
   composition with one dominant image. Both are CSS only, so the gallery works
   before — and without — any JavaScript.
   -------------------------------------------------------------------------- */

.gallery {
    position: relative;
}

.gallery__grid {
    display: grid;
    gap: var(--space-2);
    list-style: none;
    margin: 0;
    padding: 0;

    /* Mobile: one image per screen, swipeable. */
    grid-auto-flow: column;
    grid-auto-columns: 88%;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-padding-inline: var(--container-gutter);
    /* The strip runs to the screen edge; the gutter is restored per item. */
    margin-inline: calc(var(--container-gutter) * -1);
    padding-inline: var(--container-gutter);
    scrollbar-width: none;
}

.gallery__grid::-webkit-scrollbar {
    display: none;
}

.gallery__item {
    scroll-snap-align: start;
    min-inline-size: 0;
}

.gallery__open {
    display: block;
    inline-size: 100%;
    overflow: hidden;
    aspect-ratio: var(--aspect-editorial);
    background-color: var(--color-surface-sunken);
    border-radius: var(--radius-md);
    cursor: zoom-in;
}

.gallery__open .responsive-image {
    transition: transform var(--duration-slow) var(--ease-out);
}

@media (hover: hover) {
    .gallery__open:hover .responsive-image {
        transform: scale(1.03);
    }
}

.gallery__count {
    margin-block-start: var(--space-4);
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
    letter-spacing: var(--letter-spacing-wide);
    text-transform: uppercase;
}

@media (min-width: 768px) {
    .gallery__grid {
        /* Desktop: the first image dominates, the rest sit beside it. */
        grid-auto-flow: row;
        grid-template-columns: repeat(4, 1fr);
        grid-auto-rows: 1fr;
        overflow: visible;
        margin-inline: 0;
        padding-inline: 0;
        gap: var(--space-3);
    }

    .gallery__item:first-child {
        grid-column: span 4;
    }

    .gallery__item:first-child .gallery__open {
        aspect-ratio: var(--aspect-wide);
    }

    .gallery__item:not(:first-child) .gallery__open {
        aspect-ratio: var(--aspect-card);
    }

    /* Beyond five images the rest live in the fullscreen viewer; a detail page
       is not a contact sheet. */
    .gallery__item:nth-child(n + 6) {
        display: none;
    }
}

@media (min-width: 1024px) {
    .gallery__item:first-child {
        grid-column: span 3;
        grid-row: span 2;
    }

    .gallery__item:first-child .gallery__open {
        block-size: 100%;
        aspect-ratio: auto;
        min-block-size: 26rem;
    }

    .gallery__item:not(:first-child) .gallery__open {
        block-size: 100%;
        aspect-ratio: auto;
        min-block-size: 12.5rem;
    }

    .gallery__item:nth-child(n + 4) {
        display: none;
    }
}

/* --------------------------------------------------------------------------
   Lightbox
   A native <dialog>: the browser gives focus trapping, Escape and an inert
   background without a line of JavaScript.
   -------------------------------------------------------------------------- */

.lightbox {
    inline-size: 100vw;
    max-inline-size: 100vw;
    block-size: 100dvh;
    max-block-size: 100dvh;
    margin: 0;
    padding: 0;
    border: 0;
    background-color: var(--color-overlay-strong);
    color: var(--color-on-image);
}

.lightbox::backdrop {
    background-color: var(--color-overlay-strong);
}

.lightbox__chrome {
    position: absolute;
    inset-block-start: 0;
    inset-inline: 0;
    z-index: var(--z-raised);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
}

.lightbox__counter {
    color: var(--color-on-image);
    font-size: var(--font-size-sm);
    font-variant-numeric: tabular-nums;
    letter-spacing: var(--letter-spacing-wide);
}

.lightbox__close,
.lightbox__nav {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    inline-size: 48px;
    block-size: 48px;
    background-color: var(--color-on-image-veil);
    border: var(--border-width) solid var(--color-on-image-edge);
    border-radius: var(--radius-full);
    color: var(--color-on-image);
    font-size: var(--font-size-xl);
    line-height: 1;
    transition: background-color var(--transition-fast);
}

.lightbox__close:hover,
.lightbox__nav:hover {
    background-color: var(--color-on-image);
    color: var(--color-text-primary);
}

.lightbox__swiper {
    inline-size: 100%;
    block-size: 100%;
}

.lightbox__slide {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-16) var(--space-4);
}

.lightbox__slide img {
    max-inline-size: 100%;
    max-block-size: 100%;
    inline-size: auto;
    block-size: auto;
    object-fit: contain;
}

.lightbox__nav {
    position: absolute;
    inset-block-start: 50%;
    z-index: var(--z-raised);
    transform: translateY(-50%);
}

.lightbox__nav--prev { inset-inline-start: var(--space-4); }
.lightbox__nav--next { inset-inline-end: var(--space-4); }

/* Touch devices have the swipe; the arrows would only cover the photograph. */
@media (hover: none) {
    .lightbox__nav {
        display: none;
    }
}

body.is-lightbox-open {
    overflow: hidden;
}

/* --------------------------------------------------------------------------
   Listing layout
   -------------------------------------------------------------------------- */

.listing__layout {
    display: grid;
    gap: var(--space-12);
    padding-block: var(--section-spacing-sm);
}

.listing__kicker {
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    letter-spacing: var(--letter-spacing-eyebrow);
    text-transform: uppercase;
}

.listing__availability {
    margin-inline-start: var(--space-2);
    padding: 2px var(--space-2);
    background-color: var(--color-surface-sunken);
    border-radius: var(--radius-sm);
    color: var(--color-accent-text);
}

.listing__title {
    margin-block-start: var(--space-4);
    font-size: var(--font-size-4xl);
}

.listing__location {
    margin-block-start: var(--space-3);
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
}

.listing__reference {
    margin-block-start: var(--space-3);
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
    letter-spacing: var(--letter-spacing-wide);
}

.listing__lead {
    max-inline-size: var(--container-prose);
    margin-block-start: var(--space-6);
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
}

/* The numbers a buyer scans before reading a word. */
.listing__highlights {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-6) var(--space-10);
    margin-block: var(--space-8) 0;
    padding-block: var(--space-6);
    border-block: var(--border-subtle);
    list-style: none;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.listing__highlights strong {
    display: block;
    color: var(--color-text-primary);
    font-family: var(--font-display);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-regular);
}

.listing__section {
    margin-block-start: var(--section-spacing-sm);
}

.listing__section-title {
    margin-block-end: var(--space-6);
    font-size: var(--font-size-2xl);
}

.listing__prose {
    max-inline-size: var(--container-prose);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

.listing__prose p + p {
    margin-block-start: var(--space-4);
}

.listing__development {
    margin-block-start: var(--space-8);
    padding: var(--space-6);
    border: var(--border-subtle);
    border-radius: var(--radius-md);
    background: var(--color-bg-secondary);
}

.listing__development-label {
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
    letter-spacing: var(--letter-spacing-eyebrow);
    text-transform: uppercase;
}

.listing__development-name {
    margin-block-start: var(--space-1);
    font-family: var(--font-display);
    font-size: var(--font-size-xl);
    line-height: var(--line-height-tight);
}

.listing__development-lead {
    margin-block-start: var(--space-2);
    max-width: 52ch;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
}

.listing__development .button {
    margin-block-start: var(--space-5);
}

/* --------------------------------------------------------------------------
   Specifications
   -------------------------------------------------------------------------- */

.spec-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(12rem, 1fr));
    gap: 0;
    margin: 0;
}

.spec-list__item {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-4);
    padding-block: var(--space-4);
    border-block-end: var(--border-subtle);
}

.spec-list dt {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.spec-list dd {
    margin: 0;
    font-size: var(--font-size-sm);
    font-variant-numeric: tabular-nums;
    text-align: right;
}

@media (min-width: 768px) {
    .spec-list {
        column-gap: var(--space-10);
    }
}

/* --------------------------------------------------------------------------
   Amenities
   A ruled multi-column list, not twenty cards (DESIGN.md 4).
   -------------------------------------------------------------------------- */

.amenity-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr));
    gap: 0 var(--space-10);
    list-style: none;
    margin: 0;
    padding: 0;
}

.amenity-list__item {
    padding-block: var(--space-3);
    border-block-end: var(--border-subtle);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

/* --------------------------------------------------------------------------
   Contact panel
   -------------------------------------------------------------------------- */

.listing-contact {
    padding: var(--space-8);
    background-color: var(--color-surface-sunken);
    border: var(--border-subtle);
    border-radius: var(--radius-md);
}

.listing-contact__title {
    margin-block-start: var(--space-4);
    font-size: var(--font-size-2xl);
}

.listing-contact__text {
    margin-block-start: var(--space-4);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
}

.listing-contact__actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-block-start: var(--space-6);
}

.listing-contact__direct {
    margin-block-start: var(--space-5);
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
}

.listing-contact__direct a {
    color: var(--color-text-primary);
}

@media (min-width: 1024px) {
    .listing__layout {
        grid-template-columns: minmax(0, 1fr) 21rem;
        gap: var(--space-16);
        align-items: start;
    }

    /* Follows the reader down a long description. */
    .listing__aside {
        position: sticky;
        top: calc(var(--header-height-lg) + var(--space-6));
    }
}