/* Letterbox viewer — shared by the direction pages (src/pages/viewer.js) and the home page bin. */
.lbx { position: fixed; inset: 0; z-index: 180; color: #fff; }
.lbx[hidden] { display: none; }
.lbx-bg { position: absolute; inset: 0; background: rgba(4, 4, 5, 0.94); opacity: 0; transition: opacity 0.25s; }
.lbx.in .lbx-bg { opacity: 1; }
.lbx-frame { position: absolute; left: 50%; top: 50%; width: min(92vw, calc(84vh * 16 / 9)); aspect-ratio: 16 / 9; transform: translate(-50%, -50%) scale(0.96); opacity: 0; transition: transform 0.45s var(--ease-out), opacity 0.25s; background: #000; border-radius: 6px; overflow: hidden; }
.lbx.portrait .lbx-frame { width: auto; height: min(82vh, calc(92vw * 16 / 9)); aspect-ratio: 9 / 16; }
.lbx.in .lbx-frame { transform: translate(-50%, -50%); opacity: 1; }
.lbx-frame img, .lbx-frame video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; max-width: none; }
.lbx-frame video { opacity: 0; transition: opacity 0.2s; }
.lbx-frame video.on { opacity: 1; }
.lbx-top { position: absolute; left: var(--gutter); right: var(--gutter); top: calc(16px + env(safe-area-inset-top)); display: flex; justify-content: space-between; align-items: center; }
.lbx-n { font-size: 12px; letter-spacing: 0.08em; color: rgba(255, 255, 255, 0.78); }
.lbx-info { position: absolute; left: var(--gutter); right: 120px; bottom: calc(28px + env(safe-area-inset-bottom)); display: grid; gap: 6px; pointer-events: none; }
.lbx-k { font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(255, 255, 255, 0.72); }
.lbx-s { font-size: clamp(13px, 1.1vw, 16px); line-height: 1.4; color: rgba(255, 255, 255, 0.72); text-shadow: 0 1px 12px rgba(0, 0, 0, 0.6); }
.lbx-s:empty { display: none; }
.lbx-t { margin: 0; font-family: var(--f-display); font-weight: var(--display-w); font-variation-settings: var(--display-vs); letter-spacing: var(--display-ls); font-size: clamp(20px, 2.6vw, 38px); line-height: 1.08; text-shadow: 0 2px 18px rgba(0, 0, 0, 0.6); }
.lbx-btn { width: 48px; height: 48px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, 0.3); background: rgba(10, 10, 12, 0.55); color: #fff; display: grid; place-items: center; cursor: pointer; }
.lbx-btn svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.lbx-btn:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.lbx-prev, .lbx-next { position: absolute; top: 50%; transform: translateY(-50%); }
.lbx-prev { left: var(--gutter); }
.lbx-next { right: var(--gutter); }
.lbx-bar { position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: rgba(255, 255, 255, 0.12); }
.lbx-bar i { display: block; height: 100%; background: var(--rec); transform-origin: 0 50%; transform: scaleX(0); }
@media (max-width: 767px) {
  .lbx-prev, .lbx-next { top: auto; bottom: calc(22px + env(safe-area-inset-bottom)); transform: none; width: 44px; height: 44px; }
  .lbx-prev { left: auto; right: calc(var(--gutter) + 52px); }
  .lbx-info { right: 120px; }
@media (prefers-reduced-motion: reduce) { .lbx-frame, .lbx-bg { transition: none !important; } }