/* ═══════════════════════════════════════════════════════════════════════════
   Portfolio extensions — 作品 / 图集 / 介绍 and the language switch.

   Appended to the Hunter theme sheet rather than merged into it, so the theme's
   own rules above stay untouched and auditable against
   theme/hunter-style.reference.css. Everything here reuses the theme's
   variables (--fs-*, --lh-*, --ls-*, --ink, --container) so the type scale,
   weight tiers and rhythm match the rest of the site without restating them.
   ═══════════════════════════════════════════════════════════════════════════ */

@layer components {
  /* ── language switch ────────────────────────────────────────────────────
     Sits at the end of the primary nav. An <a> that navigates, not a
     <button> that runs script: switching language must work before (and
     without) JavaScript, and it survives being opened in a new tab. */
  .langswitch {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-inline-start: 4px;
    padding: 6px 12px;
    border: 1px solid color-mix(in srgb, var(--ink) 24%, transparent);
    border-radius: 999px;
    color: var(--ink);
    font: var(--w-ui) var(--fs-ui)/var(--lh-ui) var(--font-sans);
    letter-spacing: var(--ls-ui);
    text-decoration: none;
    background: transparent;
    transition: border-color .3s ease, background-color .3s ease;
    -webkit-tap-highlight-color: transparent;
  }
  .langswitch:hover,
  .langswitch:focus-visible {
    border-color: color-mix(in srgb, var(--ink) 55%, transparent);
    background: color-mix(in srgb, var(--ink) 6%, transparent);
  }
  .langswitch__glyph {
    font-size: 13px;
    opacity: .7;
    line-height: 1;
  }

  /* ── page shell for the secondary pages ─────────────────────────────────
     The home page is a scroll-driven sequence; these are ordinary documents,
     so they get a plain container and the theme's own vertical rhythm. The
     fixed chrome overlays them, hence the top padding. */
  .page {
    position: relative;
    z-index: 1;
    min-height: 100svh;
    padding: calc(96px + env(safe-area-inset-top)) 0 160px;
    background: #fff;
    color: var(--ink);
  }
  .page__inner {
    width: min(100% - 48px, var(--container));
    margin-inline: auto;
  }
  .page__head {
    display: grid;
    gap: 20px;
    max-width: var(--measure-lead);
    margin-bottom: clamp(48px, 7vw, 96px);
  }
  .page__title {
    font: var(--w-display) var(--fs-lead)/var(--lh-lead) var(--font-sans);
    letter-spacing: var(--ls-lead);
    margin: 0;
  }
  .page__lede {
    font: var(--w-display) var(--fs-body-lg)/var(--lh-body-lg) var(--font-sans);
    letter-spacing: var(--ls-body-lg);
    margin: 0;
    color: color-mix(in srgb, var(--ink) 72%, transparent);
  }
  .page__back {
    justify-self: start;
    font: var(--w-ui) var(--fs-ui)/var(--lh-ui) var(--font-sans);
    letter-spacing: var(--ls-ui);
    color: var(--ink);
    text-decoration: none;
    border-bottom: 1px solid color-mix(in srgb, var(--ink) 30%, transparent);
    padding-bottom: 2px;
  }
  .page__back:hover { border-bottom-color: var(--ink) }
  .page__empty {
    font: var(--w-display) var(--fs-body)/var(--lh-body) var(--font-sans);
    letter-spacing: var(--ls-body);
    color: color-mix(in srgb, var(--ink) 55%, transparent);
  }

  /* ── the secondary pages' primary nav ───────────────────────────────────
     The home page's `.hero__nav` is positioned by the hero. These pages have
     no hero, so the same links sit in the flow here. The links themselves keep
     `.t-ui`, which is what carries the theme's nav typography. */
  .pagenav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 24px;
    margin-bottom: clamp(40px, 6vw, 72px);
  }
  .pagenav a {
    color: inherit;
    text-decoration: none;
  }
  .pagenav a[aria-current="page"] {
    border-bottom: 1px solid color-mix(in srgb, var(--ink) 45%, transparent);
    padding-bottom: 2px;
  }
  .pagenav a:not(.langswitch) {
    font: var(--w-ui) var(--fs-ui)/var(--lh-ui) var(--font-sans);
    letter-spacing: var(--ls-ui);
  }

  /* ── works index ────────────────────────────────────────────────────────
     Films first. Each entry is a full-width row: still on one side, the
     record's metadata on the other, alternating so the eye zigzags down the
     page. A hovered film plays its preview inline; without one the still
     simply holds, which is the honest state for an unrendered work. */
  .works {
    display: grid;
    gap: clamp(56px, 8vw, 120px);
    margin: 0;
    padding: 0;
    list-style: none;
  }
  .work {
    display: grid;
    gap: 24px;
  }
  .work__media {
    position: relative;
    display: block;
    margin: 0;
    overflow: hidden;
    border-radius: 4px;
    background: color-mix(in srgb, var(--ink) 6%, #fff);
    aspect-ratio: 16 / 9;
  }
  .work__media img,
  .work__media video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: opacity .5s ease, scale .8s cubic-bezier(.2,.7,.2,1);
  }
  .work__media:hover img { scale: 1.03 }
  .work__badge {
    position: absolute;
    inset-block-start: 16px;
    inset-inline-start: 16px;
    padding: 5px 11px;
    border-radius: 999px;
    background: color-mix(in srgb, #fff 88%, transparent);
    backdrop-filter: blur(8px);
    font: var(--w-ui) var(--fs-small)/1.4 var(--font-sans);
    letter-spacing: var(--ls-small);
    color: var(--ink);
  }
  .work__meta {
    display: grid;
    gap: 8px;
    max-width: var(--measure-body);
  }
  .work__title {
    font: var(--w-text) var(--fs-body-lg)/var(--lh-body-lg) var(--font-sans);
    letter-spacing: var(--ls-body-lg);
    margin: 0;
  }
  .work__summary {
    font: var(--w-display) var(--fs-body)/var(--lh-body) var(--font-sans);
    letter-spacing: var(--ls-body);
    margin: 0;
    color: color-mix(in srgb, var(--ink) 72%, transparent);
  }
  .work__facts {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 14px;
    margin: 0;
    padding: 0;
    list-style: none;
    font: var(--w-text) var(--fs-small)/var(--lh-small) var(--font-sans);
    letter-spacing: var(--ls-small);
    color: color-mix(in srgb, var(--ink) 60%, transparent);
  }

  /* Two columns once there is room; the media keeps the wider share. */
  @media (min-width: 860px) {
    .work {
      grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
      align-items: center;
      gap: clamp(32px, 5vw, 72px);
    }
    .work:nth-child(even) .work__media { order: 2 }
  }
  .work__link {
    display: block;
    color: inherit;
    text-decoration: none;
  }
  .work__link:focus-visible {
    outline: 2px solid var(--ink);
    outline-offset: 4px;
  }

  /* ── gallery index ──────────────────────────────────────────────────────
     A masonry-ish column flow. CSS columns keep the markup a flat list,
     which is what a screen reader and a no-CSS browser want. */
  .gallery {
    column-count: 1;
    column-gap: 16px;
    margin: 0;
    padding: 0;
    list-style: none;
  }
  @media (min-width: 640px) { .gallery { column-count: 2 } }
  @media (min-width: 1100px) { .gallery { column-count: 3 } }
  .gallery__item {
    break-inside: avoid;
    margin-bottom: 16px;
  }
  .gallery__button {
    display: block;
    width: 100%;
    padding: 0;
    border: 0;
    background: none;
    cursor: zoom-in;
    border-radius: 4px;
    overflow: hidden;
    position: relative;
    -webkit-tap-highlight-color: transparent;
  }
  .gallery__button img {
    width: 100%;
    height: auto;
    display: block;
    transition: scale .8s cubic-bezier(.2,.7,.2,1), opacity .4s ease;
  }
  .gallery__button:hover img { scale: 1.02 }
  .gallery__button:focus-visible {
    outline: 2px solid var(--ink);
    outline-offset: 3px;
  }
  .gallery__caption {
    font: var(--w-text) var(--fs-small)/var(--lh-small) var(--font-sans);
    letter-spacing: var(--ls-small);
    color: color-mix(in srgb, var(--ink) 60%, transparent);
    margin-top: 8px;
  }

  /* ── lightbox ───────────────────────────────────────────────────────────
     Rendered into the document but inert (hidden) until opened, so there is
     no layout shift on first click and no second document to fetch. */
  .lightbox {
    position: fixed;
    inset: 0;
    z-index: 90;
    display: none;
    place-items: center;
    background: color-mix(in srgb, #fff 96%, transparent);
    backdrop-filter: blur(24px);
    padding: 24px;
  }
  .lightbox[open],
  .lightbox.is-open { display: grid }
  .lightbox__figure {
    margin: 0;
    max-width: min(100%, var(--container-wide));
    max-height: 100%;
    display: grid;
    gap: 12px;
    justify-items: center;
  }
  .lightbox__img {
    max-width: 100%;
    max-height: 78svh;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 3px;
  }
  .lightbox__caption {
    font: var(--w-text) var(--fs-small)/var(--lh-small) var(--font-sans);
    letter-spacing: var(--ls-small);
    color: color-mix(in srgb, var(--ink) 62%, transparent);
    text-align: center;
  }
  .lightbox__close,
  .lightbox__nav {
    position: absolute;
    z-index: 1;
    display: grid;
    place-items: center;
    border: 1px solid color-mix(in srgb, var(--ink) 22%, transparent);
    background: color-mix(in srgb, #fff 90%, transparent);
    color: var(--ink);
    border-radius: 999px;
    cursor: pointer;
    font: var(--w-ui) var(--fs-ui)/1 var(--font-sans);
    transition: border-color .25s ease, background-color .25s ease;
  }
  .lightbox__close:hover,
  .lightbox__nav:hover { border-color: var(--ink) }
  .lightbox__close {
    inset-block-start: max(20px, env(safe-area-inset-top));
    inset-inline-end: 20px;
    width: 44px;
    height: 44px;
  }
  .lightbox__nav {
    inset-block-start: 50%;
    translate: 0 -50%;
    width: 48px;
    height: 48px;
  }
  .lightbox__nav--prev { inset-inline-start: 16px }
  .lightbox__nav--next { inset-inline-end: 16px }
  .lightbox__nav[disabled] { opacity: .32; cursor: default }

  /* ── about ──────────────────────────────────────────────────────────────
     Editorial prose at the theme's body measure. */
  .about__body {
    display: grid;
    gap: 20px;
    max-width: var(--measure-lead);
  }
  .about__body p {
    font: var(--w-display) var(--fs-body)/var(--lh-body) var(--font-sans);
    letter-spacing: var(--ls-body);
    margin: 0;
  }
  .about__heading {
    font: var(--w-text) var(--fs-body-lg)/var(--lh-body-lg) var(--font-sans);
    letter-spacing: var(--ls-body-lg);
    margin: 0 0 8px;
  }
  .about__portrait {
    width: min(100%, 420px);
    height: auto;
    border-radius: 4px;
    margin-bottom: clamp(32px, 5vw, 56px);
  }
  .about__credits {
    display: grid;
    gap: 8px;
    margin: clamp(40px, 6vw, 72px) 0 0;
    padding: 0;
    list-style: none;
    max-width: var(--measure-body);
  }
  .about__credits li {
    font: var(--w-text) var(--fs-small)/var(--lh-small) var(--font-sans);
    letter-spacing: var(--ls-small);
    color: color-mix(in srgb, var(--ink) 68%, transparent);
    display: flex;
    justify-content: space-between;
    gap: 16px;
    border-bottom: 1px solid color-mix(in srgb, var(--ink) 10%, transparent);
    padding-bottom: 8px;
  }
  .about__contact {
    margin-top: clamp(40px, 6vw, 72px);
    font: var(--w-display) var(--fs-body)/var(--lh-body) var(--font-sans);
    letter-spacing: var(--ls-body);
  }
  .about__contact a { color: var(--ink) }

  /* ── film collection (作品集) ────────────────────────────────────────────
     The player leads, the films follow as a grid. The island replaces this
     whole region once it mounts, so these rules are what a reader without the
     bundle sees — and what the island's own markup has to sit inside without
     the page shifting. */
  .portfolio__player {
    margin: 0 0 clamp(40px, 6vw, 72px);
  }
  .portfolio__video {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    background: color-mix(in srgb, var(--ink) 8%, transparent);
    border-radius: 4px;
  }
  .portfolio__now {
    margin: 12px 0 0;
    font: var(--w-ui) var(--fs-ui)/var(--lh-ui) var(--font-sans);
    letter-spacing: var(--ls-ui);
    color: color-mix(in srgb, var(--ink) 62%, transparent);
  }
  .portfolio__note {
    margin: 6px 0 0;
    font: var(--w-text) var(--fs-small)/var(--lh-small) var(--font-sans);
    letter-spacing: var(--ls-small);
    color: color-mix(in srgb, var(--ink) 52%, transparent);
  }

  .films {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr));
    gap: clamp(24px, 3vw, 40px);
    margin: 0;
    padding: 0;
    list-style: none;
  }
  .film__link {
    display: block;
    color: inherit;
    text-decoration: none;
  }
  .film__stills {
    margin: 0;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: 4px;
    background: color-mix(in srgb, var(--ink) 8%, transparent);
  }
  .film__stills img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .7s ease;
  }
  .film__link:hover .film__stills img,
  .film__link:focus-visible .film__stills img { transform: scale(1.03) }

  /* The film on screen is the one at full strength; the rest step back so the
     list reads as a queue rather than as equal choices. */
  .film { opacity: .72; transition: opacity .35s ease }
  .film:hover,
  .film:focus-within,
  .film.is-active { opacity: 1 }

  .film__meta { margin-top: 14px }
  .film__title {
    margin: 0;
    font: var(--w-display) var(--fs-body)/var(--lh-body) var(--font-sans);
    letter-spacing: var(--ls-body);
  }
  .film__summary {
    margin: 6px 0 0;
    font: var(--w-text) var(--fs-small)/var(--lh-small) var(--font-sans);
    letter-spacing: var(--ls-small);
    color: color-mix(in srgb, var(--ink) 66%, transparent);
  }
  .film__facts {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 16px;
    margin: 10px 0 0;
    padding: 0;
    list-style: none;
    font: var(--w-text) var(--fs-small)/var(--lh-small) var(--font-sans);
    letter-spacing: var(--ls-small);
    color: color-mix(in srgb, var(--ink) 52%, transparent);
  }
  .film__note {
    margin: 8px 0 0;
    font: var(--w-text) var(--fs-small)/var(--lh-small) var(--font-sans);
    color: color-mix(in srgb, var(--ink) 52%, transparent);
  }
}

@layer utilities {
  /* The nav grows by one item on the secondary pages; keep it wrapping
     rather than overflowing on a narrow phone. */
  .hero__nav { flex-wrap: wrap }
}