/* ==========================================================================
   v41 · Bajo las jaulas — estreno con protagonismo y relato en tres actos
   Estreno sin reproductor falso · El recorrido · Separadores de acto ·
   Profundímetro agrupado · Barra e índice inferior en móvil
   ========================================================================== */

/* ---------- El estreno: avance con fotos de terreno ---------- */
.al-bj-player[data-yt=""] .al-bj-player-play,
.al-bj-player[data-yt=""] .al-bj-player-msg { display: none; }
.al-bj-player--activo .al-bj-teaser, .al-bj-player--activo .al-bj-teaser-luz,
.al-bj-player--activo .al-bj-teaser-pie, .al-bj-player--activo .al-bj-teaser-ticks { display: none; }
.al-bj-teaser { position: absolute; inset: 0; overflow: hidden; }
.al-bj-teaser img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transform: scale(1.06); filter: saturate(.55) brightness(.62) contrast(1.08); transition: opacity 1.8s ease; will-change: opacity, transform; }
.al-bj-teaser img.al-activo { opacity: 1; }
.al-bj-teaser--vivo .al-bj-teaser img.al-activo { animation: al-bj-kb-a 7.4s cubic-bezier(.25,.1,.25,1) forwards; }
.al-bj-teaser--vivo .al-bj-teaser img:nth-child(even).al-activo { animation-name: al-bj-kb-b; }
@keyframes al-bj-kb-a { from { transform: scale(1.06) translate3d(0,0,0); } to { transform: scale(1.16) translate3d(-2.2%, -1.6%, 0); } }
@keyframes al-bj-kb-b { from { transform: scale(1.16) translate3d(-1.8%, 1.2%, 0); } to { transform: scale(1.06) translate3d(1.2%, 0, 0); } }
.al-bj-teaser-luz { position: absolute; inset: -20%; pointer-events: none; mix-blend-mode: screen; opacity: .16;
  background: radial-gradient(40% 18% at 30% 20%, rgba(130,195,220,.55), transparent 70%), radial-gradient(30% 14% at 70% 35%, rgba(130,195,220,.4), transparent 70%), radial-gradient(36% 16% at 50% 70%, rgba(207,168,239,.3), transparent 70%);
  animation: al-bj-caustica 11s ease-in-out infinite alternate; }
@keyframes al-bj-caustica { from { transform: translate3d(-3%, -2%, 0) rotate(-2deg); } to { transform: translate3d(3%, 2%, 0) rotate(2deg); } }
.al-bj-player .al-bj-player-velo { z-index: 1; } .al-bj-player-estado, .al-bj-player-marca { z-index: 3; }
.al-bj-teaser-pie { position: absolute; right: 22px; bottom: 22px; z-index: 3; max-width: 46%; margin: 0; text-align: right; font-size: .78rem; line-height: 1.4; color: rgba(243,243,243,.78) !important; }
.al-bj-teaser-ticks { position: absolute; right: 22px; top: 24px; z-index: 3; display: flex; gap: 6px; }
.al-bj-teaser-ticks i { position: relative; width: 20px; height: 2px; border-radius: 2px; background: rgba(243,243,243,.28); overflow: hidden; }
.al-bj-teaser-ticks i::after { content: ""; position: absolute; inset: 0; background: #E9786A; transform: scaleX(0); transform-origin: left; }
.al-bj-teaser-ticks i.al-activo::after { transform: scaleX(1); }
.al-bj-teaser--vivo .al-bj-teaser-ticks i.al-activo::after { animation: al-bj-tick 5.2s linear forwards; }
@keyframes al-bj-tick { from { transform: scaleX(0); } to { transform: scaleX(1); } }

.al-bj-ficha { display: flex; flex-direction: column; }
.al-bj-ficha-cta { margin: 0 0 18px; font-family: var(--display); font-weight: 500; font-size: clamp(1.45rem, 1.1rem + 1vw, 2rem); line-height: 1.08; letter-spacing: -0.025em; color: #F3F3F3 !important; }
.al-bj-ficha .al-bj-ficha-acc { margin-top: 0; }
.al-bj-ficha-meta { margin: auto 0 0; padding-top: 26px; font-size: .82rem; line-height: 1.5; color: rgba(243,243,243,.66) !important; }
.al-bj-ficha-mas { margin-top: 12px; border-top: 1px dashed rgba(243,243,243,.18); }
.al-bj-ficha-mas summary { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 12px 0 2px; cursor: pointer; list-style: none; font-size: .76rem; letter-spacing: .1em; text-transform: uppercase; color: rgba(243,243,243,.75); }
.al-bj-ficha-mas summary::-webkit-details-marker { display: none; }
.al-bj-ficha-mas summary::after { content: "+"; font-size: 1.1rem; line-height: 1; color: #E9786A; transition: transform .3s; }
.al-bj-ficha-mas[open] summary::after { transform: rotate(45deg); }
.al-bj-ficha-mas summary:focus-visible { outline: 2px solid #E9786A; outline-offset: 4px; border-radius: 4px; }
.al-bj-ficha-mas dl { margin-top: 8px; }
@media (max-width: 900px) {
  .al-bj-estreno { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .al-bj-teaser-pie { left: 22px; right: 22px; bottom: 56px; max-width: none; text-align: left; font-size: .72rem; }
  .al-bj-teaser-ticks { top: 22px; right: 18px; } .al-bj-teaser-ticks i { width: 12px; }
  .al-bj-player-estado { left: 18px; top: 16px; font-size: .66rem; }
}

/* ---------- El recorrido: un corte de mar en tres profundidades ---------- */
.al-bj-inm { padding: clamp(70px, 9vw, 130px) 0; overflow: hidden; }
.al-bj-inm-luz { position: absolute; left: 0; right: 0; top: 0; height: 70%; pointer-events: none; opacity: .5;
  background: repeating-linear-gradient(100deg, transparent 0 7%, rgba(130,195,220,.05) 7.5% 9%, transparent 9.5% 16%);
  -webkit-mask-image: linear-gradient(180deg, #000, transparent); mask-image: linear-gradient(180deg, #000, transparent);
  animation: al-bj-rayos 14s ease-in-out infinite alternate; }
@keyframes al-bj-rayos { from { transform: translate3d(-2%, 0, 0) skewX(-3deg); } to { transform: translate3d(2%, 0, 0) skewX(3deg); } }
.al-bj-inm-grid { position: relative; display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.25fr); gap: clamp(32px, 5vw, 80px); align-items: center; }
.al-bj-inm-total { display: inline-flex; align-items: center; gap: 10px; margin: 26px 0 0; font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; color: rgba(243,243,243,.7) !important; }
.al-bj-inm-total::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: #E9786A; box-shadow: 0 0 0 4px rgba(233,120,106,.18); }

.al-bj-inm-col { position: relative; list-style: none; margin: 0; padding: 0; border-radius: 26px; overflow: hidden; border: 1px solid rgba(243,243,243,.12);
  background: linear-gradient(180deg, rgba(130,195,220,.16) 0%, rgba(62,92,112,.14) 28%, rgba(28,30,40,.32) 66%, rgba(6,5,8,.7) 100%); counter-reset: tramo; }
/* línea de flotación y nieve marina */
.al-bj-inm-col::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px; z-index: 2; background: linear-gradient(90deg, transparent, rgba(243,243,243,.75), transparent); animation: al-bj-menisco 5s ease-in-out infinite; }
@keyframes al-bj-menisco { 0%,100% { opacity: .55; transform: scaleX(.92); } 50% { opacity: 1; transform: scaleX(1); } }
.al-bj-inm-col::after { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image: radial-gradient(1px 1px at 12% 18%, rgba(243,243,243,.6), transparent), radial-gradient(1px 1px at 38% 62%, rgba(243,243,243,.45), transparent), radial-gradient(1.4px 1.4px at 66% 30%, rgba(243,243,243,.5), transparent), radial-gradient(1px 1px at 84% 74%, rgba(243,243,243,.4), transparent), radial-gradient(1.2px 1.2px at 22% 86%, rgba(243,243,243,.35), transparent), radial-gradient(1px 1px at 56% 8%, rgba(243,243,243,.5), transparent);
  background-size: 100% 50%; animation: al-bj-nieve 18s linear infinite; }
@keyframes al-bj-nieve { from { background-position: 0 0; } to { background-position: 0 100%; } }
.al-bj-inm-tramo { position: relative; z-index: 1; padding: 26px 26px 22px 104px; background: rgba(0,0,0, calc(var(--k) * .14)); transition: background .4s; }
.al-bj-inm-tramo + .al-bj-inm-tramo { border-top: 1px dashed rgba(243,243,243,.14); }
/* sonda: regla de profundidad a la izquierda con un punto que se enciende */
.al-bj-inm-tramo::before { content: ""; position: absolute; left: 70px; top: 0; bottom: 0; width: 1px; background: rgba(243,243,243,.16); }
.al-bj-inm-tramo::after { content: ""; position: absolute; left: 65px; top: 34px; width: 11px; height: 11px; border-radius: 50%; border: 1px solid rgba(243,243,243,.5); background: #120d0d; transition: background .35s, border-color .35s, box-shadow .35s, transform .35s; }
.al-bj-inm-tramo.al-sondeado { background: rgba(243,243,243,.045); }
.al-bj-inm-tramo.al-sondeado::after { background: #E9786A; border-color: #E9786A; box-shadow: 0 0 0 6px rgba(233,120,106,.2), 0 0 18px rgba(233,120,106,.6); transform: scale(1.15); }
.al-bj-inm-link { display: grid; grid-template-columns: minmax(0, 1fr) auto; column-gap: 18px; color: inherit !important; text-decoration: none !important; }
.al-bj-inm-link:focus-visible { outline: 2px solid #E9786A; outline-offset: 6px; border-radius: 10px; }
.al-bj-inm-prof { position: absolute; left: 18px; top: 30px; width: 44px; font-size: .66rem; line-height: 1.25; letter-spacing: .04em; color: rgba(243,243,243,.6); text-align: right; font-variant-numeric: tabular-nums; }
.al-bj-inm-acto { grid-column: 1; font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: #E9786A; }
.al-bj-inm-min { grid-column: 2; grid-row: 1; align-self: start; padding: 4px 10px; border-radius: 999px; border: 1px solid rgba(243,243,243,.18); font-size: .7rem; color: rgba(243,243,243,.75); white-space: nowrap; }
.al-bj-inm-t { grid-column: 1 / -1; margin-top: 6px; font-family: var(--display); font-weight: 500; font-size: clamp(1.55rem, 1.2rem + 1.1vw, 2.25rem); line-height: 1.02; letter-spacing: -0.03em; color: #F3F3F3; }
.al-bj-inm-g { grid-column: 1 / -1; margin-top: 8px; max-width: 34rem; font-size: .95rem; line-height: 1.5; color: rgba(243,243,243,.74); }
.al-bj-inm-dato { grid-column: 1; display: flex; align-items: baseline; gap: 10px; margin-top: 14px; font-size: .82rem; line-height: 1.35; color: rgba(243,243,243,.7); }
.al-bj-inm-dato b { flex: none; font-family: var(--display); font-weight: 600; font-size: clamp(1.8rem, 1.4rem + 1vw, 2.4rem); line-height: 1; letter-spacing: -0.04em; color: #E9786A; font-variant-numeric: tabular-nums; }
.al-bj-inm-flecha { grid-column: 2; grid-row: 4; align-self: end; justify-self: end; width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgba(243,243,243,.25); position: relative; transition: transform .35s, background .35s, border-color .35s; }
.al-bj-inm-flecha::before { content: ""; position: absolute; left: 50%; top: 45%; width: 9px; height: 9px; border-right: 1.5px solid #F3F3F3; border-bottom: 1.5px solid #F3F3F3; transform: translate(-50%, -50%) rotate(45deg); }
.al-bj-inm-tramo.al-sondeado .al-bj-inm-flecha { transform: translateY(3px); background: linear-gradient(135deg, #7E17BE, #E93B24); border-color: transparent; }
.al-bj-inm-caps { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; margin: 16px 0 0; padding: 0; }
.al-bj-inm-caps a { display: inline-block; padding: 5px 11px; border-radius: 999px; border: 1px solid rgba(243,243,243,.14); font-size: .74rem; color: rgba(243,243,243,.78) !important; text-decoration: none; transition: border-color .25s, color .25s, background .25s; }
.al-bj-inm-caps a:hover, .al-bj-inm-caps a:focus-visible { border-color: #E9786A; color: #F3F3F3 !important; background: rgba(233,120,106,.1); outline: none; }
@media (max-width: 960px) { .al-bj-inm-grid { grid-template-columns: 1fr; } }
@media (max-width: 560px) {
  .al-bj-inm-tramo { padding: 22px 18px 18px 64px; }
  .al-bj-inm-tramo::before { left: 40px; } .al-bj-inm-tramo::after { left: 35px; top: 28px; }
  .al-bj-inm-prof { left: 6px; top: 46px; width: 26px; font-size: .56rem; }
  .al-bj-inm-flecha { width: 34px; height: 34px; }
}

/* ---------- Separadores de acto ---------- */
.al-bj-acto { padding: clamp(80px, 10vw, 150px) 0 clamp(36px, 5vw, 70px); overflow: hidden; }
.al-bj-acto-agua { position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, rgba(130,195,220, calc(.09 - var(--k) * .028)) 0%, transparent 55%); }
.al-bj-acto-agua::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(130,195,220,.6) 30%, rgba(243,243,243,.7) 50%, rgba(130,195,220,.6) 70%, transparent); background-size: 200% 100%; animation: al-bj-termoclina 9s linear infinite; }
@keyframes al-bj-termoclina { from { background-position: 0 0; } to { background-position: 200% 0; } }
.al-bj-acto-in { position: relative; }
.al-bj-acto-sup { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 18px; margin: 0 0 18px; font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; color: rgba(243,243,243,.66) !important; }
.al-bj-acto-num { color: #E9786A; font-weight: 600; }
.al-bj-acto-prof { font-variant-numeric: tabular-nums; }
.al-bj-acto-prof::before, .al-bj-acto-min::before { content: ""; display: inline-block; width: 18px; height: 1px; margin: 0 10px 3px 0; vertical-align: middle; background: rgba(243,243,243,.3); }
.al-bj .al-bj-acto-t { margin: 0; font-family: var(--display); font-weight: 500; font-size: clamp(3rem, 1.6rem + 6vw, 7.5rem); line-height: .92; letter-spacing: -0.05em; color: #F3F3F3; }
.al-bj-acto-g { max-width: 36rem; margin: 22px 0 0; font-family: "Instrument Serif", serif; font-style: italic; font-size: clamp(1.25rem, 1rem + .9vw, 1.75rem); line-height: 1.3; color: rgba(243,243,243,.82) !important; }
.al-bj-acto-caps { display: flex; flex-wrap: wrap; gap: 10px; list-style: none; margin: 32px 0 0; padding: 0; }
.al-bj-acto-caps a { display: inline-flex; align-items: center; gap: 10px; padding: 9px 16px 9px 10px; border-radius: 999px; border: 1px solid rgba(243,243,243,.16); font-size: .85rem; color: #F3F3F3 !important; text-decoration: none; transition: border-color .25s, background .25s; }
.al-bj-acto-caps a b { display: grid; place-items: center; min-width: 26px; height: 26px; border-radius: 50%; background: rgba(233,120,106,.16); color: #E9786A; font-size: .7rem; font-variant-numeric: tabular-nums; }
.al-bj-acto-caps a:hover, .al-bj-acto-caps a:focus-visible { border-color: #E9786A; background: rgba(233,120,106,.08); outline: none; }

/* ---------- Profundímetro (escritorio) ---------- */
.al-bj-riel ol ol { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; list-style: none; margin: 7px 0 3px; padding: 0; }
.al-bj-riel ol ol a { font-size: .62rem; }
.al-bj-riel ol ol a i { width: 8px; }
.al-bj-riel ol ol a.al-activo i { width: 18px; }
.al-bj-riel-acto > a span { opacity: .85 !important; transform: none !important; letter-spacing: .08em; }
.al-bj-riel-acto > a span em { font-style: normal; color: #E9786A; margin-right: 3px; }
.al-bj-riel a.al-en-acto { color: #F3F3F3 !important; } .al-bj-riel a.al-en-acto i { width: 20px; background: #E9786A; }
.al-bj-riel-cerrar, .al-bj-boya { display: none; }
@media (min-width: 901px) and (max-height: 760px) {
  .al-bj-riel ol { gap: 4px; } .al-bj-riel ol ol { gap: 3px; margin: 4px 0 1px; }
}

/* ---------- Móvil: barra de profundidad + índice como hoja inferior ---------- */
@media (max-width: 900px) {
  .al-bj .al-bj-riel, .al-bj.al-bj-dentro .al-bj-riel {
    display: block; position: fixed; left: 12px; right: 12px; top: auto; bottom: 78px; z-index: 45; transform: translateY(14px);
    max-height: min(68vh, 560px); overflow: auto; overscroll-behavior: contain; padding: 18px 20px 12px; border-radius: 22px;
    background: rgba(18,13,13,.97); border: 1px solid rgba(243,243,243,.14); box-shadow: 0 30px 70px -20px rgba(0,0,0,.8);
    opacity: 0; visibility: hidden; pointer-events: none; transition: opacity .3s, transform .3s, visibility 0s linear .3s; }
  .al-bj.al-bj-dentro .al-bj-riel.al-bj-riel--abierto { opacity: 1; visibility: visible; pointer-events: auto; transform: none; transition: opacity .3s, transform .3s; }
  .al-bj-riel .al-bj-riel-m { display: none; }
  .al-bj-riel ol, .al-bj-riel ol ol { align-items: stretch; gap: 0; }
  .al-bj-riel ol ol { margin: 0 0 6px; padding-left: 18px; border-left: 1px solid rgba(243,243,243,.12); }
  .al-bj-riel a { flex-direction: row-reverse; justify-content: flex-end; padding: 9px 2px; font-size: .8rem; }
  .al-bj-riel ol ol a { font-size: .76rem; padding: 7px 2px; }
  .al-bj-riel a span { opacity: 1 !important; transform: none !important; }
  .al-bj-riel a i { width: 10px; } .al-bj-riel a.al-activo i { width: 18px; }
  .al-bj-riel-cerrar { display: block; width: 100%; margin-top: 10px; padding: 10px; border: 0; border-top: 1px solid rgba(243,243,243,.12); background: none; color: rgba(243,243,243,.75); font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; cursor: pointer; }
  .al-bj-boya { display: block; position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 46; opacity: 0; visibility: hidden; transform: translateY(130%); transition: opacity .35s, transform .35s, visibility 0s linear .35s; }
  .al-bj.al-bj-dentro .al-bj-boya { opacity: 1; visibility: visible; transform: none; transition: opacity .35s, transform .35s; }
  .al-bj-boya-btn { display: flex; align-items: center; gap: 12px; width: 100%; padding: 11px 16px; border-radius: 999px; border: 1px solid rgba(243,243,243,.16); background: rgba(18,13,13,.92); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); color: #F3F3F3; text-align: left; cursor: pointer; box-shadow: 0 16px 40px -14px rgba(0,0,0,.8); }
  .al-bj-boya-btn b { flex: none; min-width: 58px; font-family: var(--display); font-weight: 600; font-size: .95rem; color: #E9786A; font-variant-numeric: tabular-nums; }
  .al-bj-boya-t { flex: 1; min-width: 0; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; font-size: .8rem; color: rgba(243,243,243,.86); }
  .al-bj-boya-btn em { flex: none; display: inline-flex; align-items: center; gap: 6px; font-style: normal; font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: rgba(243,243,243,.7); }
  .al-bj-boya-btn em::after { content: ""; width: 6px; height: 6px; border-left: 1.5px solid currentColor; border-top: 1.5px solid currentColor; transform: rotate(45deg) translate(1px, 1px); transition: transform .3s; }
  .al-bj-boya-btn[aria-expanded="true"] em::after { transform: rotate(225deg) translate(1px, 1px); }
  .al-bj-boya-btn:focus-visible { outline: 2px solid #E9786A; outline-offset: 3px; }
  /* mientras se recorre el documental, la barra ocupa el borde inferior: lo demás flotante se aparta */
  html.al-bj-recorriendo .al-son, html.al-bj-recorriendo .al-kit-aviso,
  html.al-bj-recorriendo .al-dona-flotante, html.al-bj-recorriendo .al-equipo-flot:not(.al-movido) { bottom: 78px !important; transition: bottom .35s, transform .3s, opacity .3s, background .3s; }
}

@media (prefers-reduced-motion: reduce) {
  .al-bj-teaser img, .al-bj-teaser--vivo .al-bj-teaser img.al-activo { animation: none !important; transform: none; }
  .al-bj-teaser-luz, .al-bj-inm-luz, .al-bj-inm-col::before, .al-bj-inm-col::after, .al-bj-acto-agua::before { animation: none !important; }
  .al-bj-teaser--vivo .al-bj-teaser-ticks i.al-activo::after { animation: none; transform: scaleX(1); }
}

/* ---------- Hero: el estreno se puede pedir sin bajar ---------- */
.al-bj-hero-acc { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 26px; margin-top: 30px; }
.al-bj-hero-rec { display: inline-flex; align-items: center; gap: 12px; font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: #F3F3F3 !important; text-decoration: none; }
.al-bj-hero-rec i { position: relative; width: 34px; height: 34px; border-radius: 50%; border: 1px solid rgba(243,243,243,.4); transition: background .3s, border-color .3s, transform .3s; }
.al-bj-hero-rec i::before { content: ""; position: absolute; left: 50%; top: 44%; width: 8px; height: 8px; border-right: 1.5px solid #F3F3F3; border-bottom: 1.5px solid #F3F3F3; transform: translate(-50%, -50%) rotate(45deg); }
.al-bj-hero-rec:hover i, .al-bj-hero-rec:focus-visible i { background: linear-gradient(135deg, #7E17BE, #E93B24); border-color: transparent; transform: translateY(2px); }
.al-bj-hero-rec:focus-visible { outline: 2px solid #E9786A; outline-offset: 6px; border-radius: 6px; }

/* ---------- Uno solo y mapa: estados del recorrido automático ---------- */
.al-bj-uno--auto .al-bj-zoom-ctrls { opacity: .75; transition: opacity .6s; }
.al-bj-mapa--paseo .al-bj-carto-pie { color: #F3F3F3 !important; }

/* ---------- Movimiento reducido en los recursos existentes del documental ---------- */
@media (prefers-reduced-motion: reduce) {
  .al-bj-baja i, .al-bj-player-estado i, .al-bj-pez, .al-bj-pez-jaula, .al-bj-crono-pulso, .al-bj-postal-Tirador::before { animation: none !important; }
}
/* en pantallas chicas o bajas, «Ver el recorrido» reemplaza a la indicación de bajar (chocaban) */
@media (max-width: 700px), (max-height: 760px) { .al-bj-baja { display: none; } .al-bj-sup { padding-bottom: 70px; } }
@media (min-width: 701px) and (max-height: 760px) {
  .al-bj-sup { padding-top: 104px; }
  .al-bj-h1 { font-size: clamp(3rem, 1.4rem + 5vw, 6.2rem); margin: 10px 0 12px; }
  .al-bj-lema { margin-bottom: 10px; } .al-bj-hero-acc { margin-top: 20px; }
}

/* v41 · «Hay un solo salmón»: fotos de fondo por nivel (trenes de jaulas → salmón en la red, con acercamiento) */
.al-bj-uno-fondos { position: absolute; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.al-bj-uno-fondos img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; filter: grayscale(.25) brightness(.7) contrast(1.05); will-change: transform, opacity; }
.al-bj-uno-fondos img:first-child { transform-origin: 50% 70%; }
.al-bj-uno-fondos img + img { object-position: 70% 40%; transform-origin: 78% 42%; }
.al-bj-uno-fondos::after { content: ""; position: absolute; inset: 0; background: radial-gradient(75% 70% at 50% 45%, rgba(7,5,8,.15), rgba(7,5,8,.82) 100%); }
.al-bj-uno > canvas { position: relative; z-index: 1; }