/* ALTHA · Galería por obra. Sin recuadro distinto al fondo de la ficha. */
#project-detail .altha-gallery{width:100%;margin:1.8rem 0 2.8rem;}
#project-detail .altha-gallery-stage{--photo-stage-height:520px;position:relative;width:100%;height:var(--photo-stage-height);transition:height .4s cubic-bezier(.2,.75,.25,1);background:transparent;isolation:isolate;}
#project-detail .altha-gallery-viewport{width:100%;height:100%;overflow:hidden;background:transparent;}
#project-detail .altha-gallery-track{height:100%;width:100%;display:flex;gap:0;transform:translate3d(0,0,0);transition:transform .68s cubic-bezier(.22,.72,.18,1);will-change:transform;}
#project-detail .altha-gallery-frame{height:100%;width:100%;min-width:100%;flex:0 0 100%;display:flex;align-items:center;justify-content:center;background:transparent;}
#project-detail .altha-gallery-photo{width:100%;height:100%;padding:0;border:0;background:transparent;display:flex;align-items:center;justify-content:center;cursor:zoom-in;}
#project-detail .altha-gallery-photo img{display:block;width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain;border:0;box-shadow:none;pointer-events:none;}
#project-detail .altha-gallery-arrow{position:absolute;z-index:2;top:50%;transform:translateY(-50%);width:46px;height:46px;display:grid;place-items:center;border:1px solid #f6f3eb77;border-radius:50%;color:white;background:#11181cdd;cursor:pointer;transition:background .24s,border-color .24s,opacity .24s;}
#project-detail .altha-gallery-arrow svg{height:22px;width:22px;}
#project-detail .altha-gallery-arrow.is-prev{left:clamp(6px,1.5vw,22px)}
#project-detail .altha-gallery-arrow.is-next{right:clamp(6px,1.5vw,22px)}
#project-detail .altha-gallery-arrow:hover:not(:disabled){background:#f48c54;color:#161b1f;border-color:#f48c54;}
#project-detail .altha-gallery-arrow:disabled{opacity:.24;cursor:default;}
#project-detail .altha-gallery .altha-photo-caption{margin-top:1.3rem;}
/* Lightbox a pantalla completa, independientemente del estilo del dialog de búsqueda. */
dialog.altha-lightbox{position:fixed;inset:0;box-sizing:border-box;width:100vw;height:100dvh;max-width:none;max-height:none;margin:0;padding:0;border:0;border-radius:0;overflow:hidden;background:#0b1013;color:#fff;}
dialog.altha-lightbox::backdrop{background:rgba(0,0,0,.98);backdrop-filter:none;}
.altha-lightbox-head{position:absolute;left:0;top:0;right:0;z-index:3;display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:60px;padding:10px max(16px,env(safe-area-inset-right)) 10px max(16px,env(safe-area-inset-left));background:linear-gradient(to bottom,#0b1013ee,#0b101300);}
.altha-lightbox-title{font-size:.85rem;letter-spacing:.025em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:min(55vw,650px);}
.altha-lightbox-actions{display:flex;align-items:center;gap:6px;}
.altha-lightbox-tool{width:40px;height:40px;flex:0 0 40px;display:grid;place-items:center;border-radius:50%;border:1px solid #ffffff50;background:#17202799;color:white;padding:9px;}
.altha-lightbox-tool svg,.altha-lightbox-navigation svg{width:100%;height:100%;}
.altha-lightbox-tool:hover:not(:disabled),.altha-lightbox-navigation:hover:not(:disabled){background:#f48c54;color:#161b1f;}
.altha-lightbox-tool:disabled,.altha-lightbox-navigation:disabled{opacity:.3;}
.altha-lightbox-stage{position:absolute;inset:60px 0 77px;display:flex;align-items:center;justify-content:center;overflow:hidden;touch-action:none;cursor:zoom-in;user-select:none;-webkit-user-select:none;}
.altha-lightbox-stage.is-zoomed{cursor:grab;}
.altha-lightbox-stage.is-zoomed:active{cursor:grabbing;}
.altha-lightbox-image{display:block;width:100%;height:100%;object-fit:contain;max-width:none;max-height:none;will-change:transform;pointer-events:none;-webkit-user-drag:none;user-select:none;}
.altha-lightbox-bottom{position:absolute;bottom:max(14px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);z-index:3;display:flex;align-items:center;justify-content:center;gap:20px;}
.altha-lightbox-navigation{width:44px;height:44px;display:grid;place-items:center;border:1px solid #ffffff66;background:#172027;color:white;border-radius:50%;padding:9px;}
.altha-lightbox-counter{min-width:63px;text-align:center;font-size:.88rem;font-variant-numeric:tabular-nums;}
.altha-lightbox-hint{position:absolute;bottom:7px;left:16px;right:16px;text-align:center;font-size:.68rem;opacity:.65;pointer-events:none;}
@media(max-width:760px){
 #project-detail .altha-gallery-arrow{width:42px;height:42px;background:#10171be5;}
 .altha-lightbox-title{font-size:.72rem;max-width:35vw;}
 .altha-lightbox-tool{width:36px;height:36px;flex-basis:36px;padding:8px;}
 .altha-lightbox-head{min-height:56px;gap:5px;padding:8px max(9px,env(safe-area-inset-right)) 8px max(9px,env(safe-area-inset-left));}
 .altha-lightbox-actions{gap:4px;}
 .altha-lightbox-stage{inset:56px 0 70px;}
 .altha-lightbox-hint{font-size:.62rem;}
}
@media(prefers-reduced-motion:reduce){#project-detail .altha-gallery-track,#project-detail .altha-gallery-stage{transition:none!important;}}