/* Additional responsive styles. Desktop composition remains in project.css. */
:root {
    --mobile-gutter: clamp(14px, 3.8vw, 24px);
    --mobile-gap: 12px;
    --mobile-touch: 44px;
}

[hidden] { display: none !important; }
:where(a, button, summary, [tabindex]):focus-visible {
    outline: 3px solid #006578;
    outline-offset: 4px;
}
.single-image-panel :where(button, [tabindex]):focus-visible,
.image-lightbox :focus-visible {
    outline-color: var(--accent);
    outline-offset: 2px;
}
.image-lightbox:not(.is-open) { visibility: hidden; }
.image-lightbox.is-open { visibility: visible; }
.gallery-expand-btn {
    min-height: 44px;
    padding: 6px 12px;
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, .4);
    border-radius: 6px;
    background: rgba(17, 17, 17, .42);
    font-size: 14px;
    font-weight: 600;
}
.gallery-media-status { color: rgba(255, 255, 255, .86); font-size: 14px; line-height: 1.5; }
.gallery-expand-btn:hover { background: rgba(17, 17, 17, .74); }
.action-link[aria-disabled="true"] { cursor: default; opacity: .65; }
.mobile-project-facts, .mobile-project-details { display: none; }

@media (max-width: 768px) {
    html { scroll-padding-top: 72px; }
    body { font-size: 14px; }
    nav, nav.scrolled {
        min-height: 60px;
        padding: 8px var(--mobile-gutter);
        gap: 10px;
        background: rgba(245, 245, 243, .82);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
    }
    .nav-logo, .nav-cta {
        min-height: var(--mobile-touch);
        display: inline-flex;
        align-items: center;
    }
    .nav-logo { font-size: 15px; gap: 8px; white-space: nowrap; }
    .nav-links { display: none; }
    .nav-cta { padding: 7px 12px; font-size: 14px; letter-spacing: 0; }
    #overview, #gallery, #back {
        padding-left: var(--mobile-gutter);
        padding-right: var(--mobile-gutter);
        scroll-margin-top: 72px;
    }
    #overview { padding-top: 76px; padding-bottom: 12px; display: block; }
    .overview-grid { width: 100%; grid-template-columns: minmax(0, 1fr); gap: 0; }
    .overview-main, .overview-kicker, .overview-side { min-width: 0; grid-column: 1; }
    .overview-kicker { padding: 0; margin-bottom: 8px; }
    .section-label { font-size: 14px; letter-spacing: .04em; gap: 8px; }
    .overview-headline {
        font-size: clamp(23px, 5.8vw, 32px);
        line-height: 1.16;
        letter-spacing: -.035em;
        overflow-wrap: anywhere;
        margin-bottom: 10px;
    }
    .overview-headline .highlight {
        font-size: .76em;
        line-height: 1.55;
        padding: 1px 4px;
        box-decoration-break: clone;
        -webkit-box-decoration-break: clone;
    }
    .mobile-project-facts {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 6px;
    }
    .mobile-project-year {
        display: inline-flex;
        align-items: center;
        font-size: 14px;
        font-weight: 700;
        min-height: 30px;
        margin-right: 2px;
    }
    .tool-list { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 0; }
    .tool-chip {
        display: inline-flex;
        width: auto;
        max-width: 100%;
        flex: 0 1 auto;
        align-items: center;
        padding: 4px 8px;
        font-size: 14px;
        line-height: 1.4;
        letter-spacing: 0;
        text-transform: none;
        overflow-wrap: anywhere;
    }
    #gallery { padding-top: 0; padding-bottom: 28px; }
    .single-work-layout { grid-template-columns: minmax(0, 1fr); gap: var(--mobile-gap); }
    .single-image-panel { min-width: 0; min-height: 0; }
    .single-image-frame {
        width: 100%;
        height: auto;
        min-height: 0;
        max-height: 360px;
        aspect-ratio: 4 / 3;
        touch-action: pan-y pinch-zoom;
    }
    .single-image-real { object-fit: contain; }
    .single-image-frame .placeholder-word { max-width: 86%; left: 7%; bottom: 9%; }
    .single-image-frame .placeholder-word .num { margin-bottom: 10px; font-size: 14px; letter-spacing: .06em; color: rgba(255,255,255,.72); }
    .single-image-frame .placeholder-word .title {
        font-size: clamp(30px, 8vw, 52px);
        line-height: 1.02;
        overflow-wrap: anywhere;
    }
    .single-image-frame .placeholder-word .caption { margin-top: 12px; font-size: 14px; line-height: 1.4; letter-spacing: .02em; }
    .single-gallery-info { gap: 8px; padding: 10px; }
    .single-gallery-info .gallery-control-row { align-items: center; gap: 6px; min-width: 0; }
    .gallery-counter { padding: 6px 8px; font-size: 14px; letter-spacing: .04em; white-space: nowrap; }
    .gallery-buttons { gap: 6px; }
    .gallery-nav-btn { width: 44px; height: 44px; flex: 0 0 44px; font-size: 24px; }
    .gallery-expand-btn { padding: 6px 9px; font-size: 14px; }
    .single-gallery-info .gallery-thumb-shell { padding: 5px; border-radius: 6px; }
    .gallery-thumb-shell::before, .gallery-thumb-shell::after { display: none; }
    .gallery-thumb-shell .gallery-thumb-track {
        display: grid;
        grid-template-columns: repeat(5, minmax(0, 1fr));
        gap: 6px;
        padding: 0;
        overflow: visible;
    }
    .gallery-thumb-shell .gallery-thumb {
        width: 100%;
        height: auto;
        min-width: 44px;
        min-height: 44px;
        max-height: 80px;
        aspect-ratio: 1.2;
    }
    .gallery-thumb-label { font-size: 14px; inset: auto 4px 3px auto; letter-spacing: 0; }
    .single-caption-panel { padding: 9px 10px; gap: 8px; flex-direction: row; align-items: center; border-radius: 6px; }
    .single-caption-panel h3 { font-size: 16px; line-height: 1.3; margin-bottom: 4px; overflow-wrap: anywhere; }
    .single-caption-panel p { font-size: 14px; line-height: 1.45; letter-spacing: 0; }
    .single-caption-panel .gallery-index { font-size: 18px; }
    .mobile-project-details {
        display: block;
        min-width: 0;
        border: 1px solid rgba(255,255,255,.55);
        border-radius: 8px;
        background: rgba(255,255,255,.52);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
    }
    .mobile-project-details > summary {
        min-height: 48px;
        padding: 12px 14px;
        font-size: 14px;
        line-height: 1.5;
        font-weight: 700;
        cursor: pointer;
    }
    .mobile-project-details[open] > summary { border-bottom: 1px solid var(--border); }
    .mobile-details-body { padding: 14px; display: grid; gap: 14px; }
    .mobile-details-body .overview-copy { grid-template-columns: 1fr; gap: 10px; }
    .overview-copy p, .overview-copy p.cn,
    .single-copy-lead, .single-copy-cn, .single-copy-goal {
        font-size: 14px;
        line-height: 1.6;
        color: #505050;
        overflow-wrap: anywhere;
    }
    .overview-side { margin-top: 0; }
    .meta-panel {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px;
        padding: 12px;
        position: static;
    }
    .meta-row, .meta-row:first-child, .meta-row:last-child { padding: 0; min-width: 0; border: 0; }
    .meta-row:last-child { grid-column: 1 / -1; }
    .meta-label, .single-meta-label { font-size: 14px; line-height: 1.35; margin-bottom: 4px; letter-spacing: 0; color: #555; }
    .meta-value, .single-meta-value { font-size: 14px; line-height: 1.45; overflow-wrap: anywhere; }
    .single-copy-panel { min-width: 0; padding: 16px; gap: 18px; }
    .single-copy-eyebrow { font-size: 14px; letter-spacing: .03em; margin-bottom: 8px; }
    .single-copy-title { font-size: clamp(24px, 6vw, 32px); line-height: 1.12; margin-bottom: 12px; overflow-wrap: anywhere; }
    .single-copy-cn { margin-top: 8px; }
    .single-meta-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: 14px; }
    .single-meta-card { min-width: 0; padding: 10px; }
    .single-copy-block { padding-top: 14px; }
    .single-copy-block h3 { margin-bottom: 8px; letter-spacing: .03em; font-size: 14px; }
    #back { padding-top: 0; padding-bottom: 24px; }
    .next-panel { padding: 20px 16px; gap: 18px; }
    .next-copy h2 { font-size: clamp(28px, 7vw, 38px); line-height: 1.1; margin-top: 12px; }
    .next-actions { gap: 8px; }
    .action-link { max-width: 100%; min-height: 44px; padding: 10px 12px; font-size: 14px; letter-spacing: 0; line-height: 1.4; }
    footer { padding: 18px var(--mobile-gutter); gap: 8px; align-items: flex-start; flex-direction: column; }
    .footer-copy, .footer-right a { font-size: 14px; line-height: 1.5; letter-spacing: 0; }
    .footer-right { flex-wrap: wrap; gap: 4px 16px; }
    .footer-right a { min-height: 44px; display: inline-flex; align-items: center; }
    .image-lightbox { padding: 14px; }
    .image-lightbox-stage { width: 100%; height: min(76dvh, 760px); }
    .image-lightbox-stage .placeholder-word { max-width: 86%; }
    .image-lightbox-stage .placeholder-word .title { font-size: clamp(34px, 10vw, 66px); line-height: 1.04; overflow-wrap: anywhere; }
    .image-lightbox-stage .placeholder-word .caption { font-size: 14px; line-height: 1.5; letter-spacing: .03em; }
    .image-lightbox-close { width: 44px; height: 44px; top: max(14px, env(safe-area-inset-top)); right: 14px; }
    .mobile-ambient-active.performance-static .glass-blob {
        animation: glassBlobFloat 60s ease-in-out infinite alternate;
        will-change: transform, opacity;
    }
    .mobile-ambient-active.performance-static .blob-2 { animation-delay: -18s; animation-duration: 68s; }
    .mobile-ambient-active.performance-static .blob-3 { animation-delay: -34s; animation-duration: 76s; }
    .mobile-ambient-active #dense-lines { animation: mobileLineDrift 16s linear infinite alternate; }
    @keyframes mobileLineDrift {
        from { transform: translateX(0); opacity: .32; }
        to { transform: translateX(5px); opacity: .48; }
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; }
    .reveal { opacity: 1; transform: none; }
}