/**
 * MuseQR Visitor Artifact Page — Quick Wins MVP
 */

:root {
    --va-primary: #0F172A;
    --va-accent: #D4A017;
    --va-bg: #F8F7F4;
    --va-surface: #FFFFFF;
    --va-ink-muted: #475569;
    --va-border: rgba(15, 23, 42, 0.1);
    --va-radius: 12px;
    --va-touch: 48px;
}

.artifact-page {
    background: var(--va-bg);
    padding-bottom: 5rem;
}

.artifact-page--qr .artifact-page__breadcrumb,
.artifact-page--qr .artifact-page__actions--footer {
    display: none;
}

.artifact-hero {
    position: relative;
    margin-bottom: 1.5rem;
    border-radius: var(--va-radius);
    overflow: hidden;
    background: var(--va-primary);
    box-shadow: 0 8px 32px rgba(15, 23, 42, 0.12);
}

.artifact-hero__img {
    display: block;
    width: 100%;
    max-height: min(70vh, 520px);
    object-fit: cover;
    object-position: center;
}

.artifact-hero__placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 280px;
    color: rgba(255, 255, 255, 0.4);
    font-size: 4rem;
}

.artifact-header {
    max-width: 720px;
    margin: 0 auto 2rem;
    text-align: center;
}

.artifact-collection {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    margin-bottom: 1rem;
    padding: 0.75rem 1.25rem;
    background: linear-gradient(135deg, rgba(212, 160, 23, 0.15), rgba(6, 78, 59, 0.08));
    border: 2px solid var(--va-accent);
    border-radius: var(--va-radius);
    box-shadow: 0 4px 16px rgba(212, 160, 23, 0.15);
}

.artifact-collection__label {
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--va-ink-muted);
}

.artifact-collection__name {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display, Georgia, serif);
    font-size: clamp(1.125rem, 3vw, 1.5rem);
    font-weight: 600;
    color: var(--va-primary);
}

.artifact-header__title {
    font-family: var(--font-display, Georgia, serif);
    font-size: clamp(1.5rem, 4vw, 2.25rem);
    font-weight: 500;
    line-height: 1.2;
    color: var(--va-primary);
    margin-bottom: 0.75rem;
}

.artifact-header__meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem 1rem;
    font-size: 0.875rem;
    color: var(--va-ink-muted);
    margin-bottom: 1rem;
}

.artifact-header__meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.artifact-story {
    max-width: 720px;
    margin: 0 auto 2rem;
    padding: 1.5rem;
    background: var(--va-surface);
    border-radius: var(--va-radius);
    border: 1px solid var(--va-border);
    box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
}

.artifact-story__label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--va-accent);
    margin-bottom: 0.75rem;
}

.artifact-story__text {
    font-size: clamp(1.05rem, 2.5vw, 1.2rem);
    line-height: 1.75;
    color: var(--va-primary);
    margin: 0;
}

.artifact-details {
    max-width: 720px;
    margin: 0 auto 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0.75rem;
}

.artifact-details__item {
    background: var(--va-surface);
    border: 1px solid var(--va-border);
    border-radius: 8px;
    padding: 0.75rem 1rem;
}

.artifact-details__label {
    display: block;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--va-ink-muted);
    margin-bottom: 0.25rem;
}

.artifact-details__value {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--va-primary);
}

.artifact-content {
    max-width: 720px;
    margin: 0 auto;
}

.artifact-section {
    margin-bottom: 2rem;
}

.artifact-section__title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--va-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.artifact-section__title i {
    color: var(--va-accent);
}

.artifact-prose {
    line-height: 1.75;
    color: var(--va-ink-muted);
}

.artifact-context {
    background: var(--va-surface);
    border-left: 3px solid var(--va-accent);
    border-radius: 0 var(--va-radius) var(--va-radius) 0;
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
}

.artifact-context strong {
    display: block;
    color: var(--va-primary);
    margin-bottom: 0.35rem;
}

/* Gallery — accessible buttons */
.artifact-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0.75rem;
}

.artifact-gallery__btn {
    display: block;
    width: 100%;
    padding: 0;
    border: none;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    background: none;
    min-height: var(--va-touch);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.artifact-gallery__btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.12);
}

.artifact-gallery__btn:focus-visible {
    outline: 3px solid var(--va-accent);
    outline-offset: 2px;
}

.artifact-gallery__btn img {
    display: block;
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}

/* Related objects */
.artifact-related {
    max-width: 960px;
    margin: 3rem auto 0;
    padding-top: 2rem;
    border-top: 1px solid var(--va-border);
}

.artifact-related__title {
    font-family: var(--font-display, Georgia, serif);
    font-size: 1.35rem;
    color: var(--va-primary);
    margin-bottom: 1.25rem;
    text-align: center;
}

.artifact-related__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1rem;
}

.artifact-related__card {
    display: flex;
    flex-direction: column;
    background: var(--va-surface);
    border-radius: var(--va-radius);
    border: 1px solid var(--va-border);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    min-height: 100%;
}

.artifact-related__card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.1);
    color: inherit;
}

.artifact-related__card:focus-visible {
    outline: 3px solid var(--va-accent);
    outline-offset: 2px;
}

.artifact-related__img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    background: var(--va-bg);
}

.artifact-related__placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 4/3;
    background: var(--va-bg);
    color: var(--va-ink-muted);
    font-size: 2rem;
}

.artifact-related__body {
    padding: 0.75rem 1rem 1rem;
    flex-grow: 1;
}

.artifact-related__name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--va-primary);
    margin: 0;
    line-height: 1.35;
}

/* Sticky audio bar */
.artifact-audio-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 90;
    background: var(--va-primary);
    color: #fff;
    padding: 0.75rem 1rem;
    box-shadow: 0 -4px 24px rgba(15, 23, 42, 0.2);
    transform: translateY(100%);
    transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.artifact-audio-bar.is-visible {
    transform: translateY(0);
}

.artifact-audio-bar__inner {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.artifact-audio-bar__label {
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
}

.artifact-audio-bar__label i {
    color: var(--va-accent);
    margin-right: 0.25rem;
}

.artifact-audio-bar audio {
    flex: 1;
    min-width: 0;
    height: 36px;
}

.artifact-audio-bar__close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    min-width: var(--va-touch);
    min-height: var(--va-touch);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
}

.artifact-audio-bar__close:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

/* Footer actions */
.artifact-page__actions {
    max-width: 720px;
    margin: 2rem auto 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

.artifact-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    min-height: var(--va-touch);
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
}

.artifact-btn--primary {
    background: var(--va-primary);
    color: #fff;
    border-color: var(--va-primary);
}

.artifact-btn--primary:hover {
    background: #1e293b;
    color: #fff;
}

.artifact-btn--outline {
    background: transparent;
    color: var(--va-primary);
    border-color: var(--va-border);
}

.artifact-btn--outline:hover {
    border-color: var(--va-primary);
}

.artifact-btn:focus-visible {
    outline: 3px solid var(--va-accent);
    outline-offset: 2px;
}

/* Skip link */
.mq-skip-link {
    position: absolute;
    top: -100%;
    left: 1rem;
    z-index: 9999;
    padding: 0.75rem 1.25rem;
    background: var(--va-primary);
    color: #fff;
    font-weight: 600;
    text-decoration: none;
    border-radius: 0 0 8px 8px;
}

.mq-skip-link:focus {
    top: 0;
    outline: 3px solid var(--va-accent);
}

/* Image gallery lightbox */
body.artifact-lightbox-open {
    overflow: hidden;
}

.artifact-lightbox {
    position: fixed;
    inset: 0;
    z-index: 1080;
    display: none;
    align-items: center;
    justify-content: center;
    padding: clamp(1rem, 3vw, 2rem);
}

.artifact-lightbox.is-open {
    display: flex;
}

.artifact-lightbox__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.82);
    backdrop-filter: blur(4px);
}

.artifact-lightbox__dialog {
    position: relative;
    z-index: 1;
    width: min(1100px, 100%);
    max-height: calc(100vh - 2rem);
    display: flex;
    flex-direction: column;
    background: var(--va-surface);
    border-radius: var(--va-radius);
    border: 1px solid var(--va-border);
    box-shadow: 0 24px 64px rgba(15, 23, 42, 0.35);
    overflow: hidden;
}

.artifact-lightbox__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.875rem 1.25rem;
    background: var(--va-primary);
    color: #fff;
}

.artifact-lightbox__header .artifact-lightbox__title {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.4;
    color: #fff;
    font-family: var(--font-body, system-ui, sans-serif);
}

.artifact-lightbox__header .artifact-lightbox__title span {
    color: rgba(255, 255, 255, 0.75);
    font-weight: 500;
}

.artifact-lightbox__close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border: none;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    cursor: pointer;
    transition: background 0.2s ease;
}

.artifact-lightbox__close:hover {
    background: rgba(255, 255, 255, 0.18);
}

.artifact-lightbox__close:focus-visible {
    outline: 3px solid var(--va-accent);
    outline-offset: 2px;
}

.artifact-lightbox__body {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem;
    background: #f1f5f9;
    min-height: min(70vh, 520px);
}

.artifact-lightbox__figure {
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: min(60vh, 480px);
    padding: 0.75rem;
    background: #fff;
    border-radius: 8px;
    border: 1px solid var(--va-border);
}

.artifact-lightbox__img {
    display: block;
    max-width: 100%;
    max-height: min(68vh, 460px);
    width: auto;
    height: auto;
    object-fit: contain;
}

.artifact-lightbox__nav {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    border: none;
    border-radius: 999px;
    background: var(--va-primary);
    color: #fff;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.2);
    transition: transform 0.2s ease, background 0.2s ease;
    flex-shrink: 0;
}

.artifact-lightbox__nav:hover {
    background: #1e293b;
    transform: scale(1.05);
}

.artifact-lightbox__nav:focus-visible {
    outline: 3px solid var(--va-accent);
    outline-offset: 2px;
}

.artifact-lightbox__nav.is-hidden {
    visibility: hidden;
    pointer-events: none;
}

@media (max-width: 576px) {
    .artifact-audio-bar__label span {
        display: none;
    }

    .artifact-related__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .artifact-lightbox {
        padding: 0.75rem;
    }

    .artifact-lightbox__body {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto;
        gap: 0.75rem;
        padding: 1rem;
        min-height: auto;
    }

    .artifact-lightbox__figure {
        grid-column: 1 / -1;
        min-height: 50vh;
    }

    .artifact-lightbox__nav {
        width: 2.5rem;
        height: 2.5rem;
    }

    .artifact-lightbox__nav--prev {
        grid-column: 1;
        justify-self: end;
    }

    .artifact-lightbox__nav--next {
        grid-column: 2;
        justify-self: start;
    }
}

.mq-internal-links {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(15, 23, 42, 0.08);
}

.mq-internal-links__title {
    margin: 0 0 0.75rem;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #64748b;
}

.mq-internal-links__list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.mq-internal-links__list a {
    color: #064e3b;
    text-decoration: none;
    font-weight: 500;
}

.mq-internal-links__list a:hover {
    text-decoration: underline;
}