/* =====================================================================
   Visor de "El material" (ficha de un caso). Lo arma assets/js/galeria.js.
   ===================================================================== */

/* La pieza ahora es un enlace: que llene la celda y avise que se abre. */
.dk-galeria__abrir { display: block; height: 100%; cursor: zoom-in; position: relative; color: inherit; }
.dk-galeria__abrir::after {
	content: ""; position: absolute; inset: auto 12px 12px auto; width: 38px; height: 38px;
	border-radius: 50%; background: rgb(11 9 8 / .62) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f5f2ee' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M15 3h6v6M9 21H3v-6M21 3l-7 7M3 21l7-7'/%3E%3C/svg%3E") center / 16px no-repeat;
	border: 1px solid rgb(255 255 255 / .14);
	backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
	opacity: 0; transform: translateY(6px);
	transition: opacity .35s var(--curva), transform .35s var(--curva);
	pointer-events: none;
}
.dk-galeria__abrir:hover::after,
.dk-galeria__abrir:focus-visible::after { opacity: 1; transform: none; }
@media (hover: none) { .dk-galeria__abrir::after { opacity: 1; transform: none; } }
.dk-galeria__abrir:focus-visible { outline-offset: -3px; border-radius: 14px; }

/* Bloqueo de scroll mientras el visor está abierto. */
html.dk-visor-activo, html.dk-visor-activo body { overflow: hidden; }

/* ------------------------------------------------------------- el visor */
.dk-visor {
	position: fixed; inset: 0; z-index: 9999;
	display: grid; grid-template-columns: auto 1fr auto; grid-template-rows: auto 1fr;
	align-items: center;
	padding: clamp(10px, 2vw, 24px);
	gap: clamp(6px, 1.4vw, 18px);
}
.dk-visor[hidden] { display: none; }

.dk-visor__fondo {
	position: absolute; inset: 0;
	background: rgb(11 9 8 / .94);
	backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
	opacity: 0; transition: opacity .28s var(--curva);
}
.dk-visor--abierto .dk-visor__fondo { opacity: 1; }

.dk-visor__barra {
	position: relative; grid-column: 1 / -1;
	display: flex; align-items: center; justify-content: space-between;
	opacity: 0; transition: opacity .28s var(--curva);
}
.dk-visor__contador {
	font-family: var(--display); font-size: .78rem; font-weight: 700;
	letter-spacing: .18em; color: var(--ceniza);
}

.dk-visor__escena {
	position: relative; margin: 0; height: 100%; min-height: 0;
	display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px;
	opacity: 0; transform: scale(.97);
	transition: opacity .28s var(--curva), transform .38s var(--curva);
}
.dk-visor--abierto .dk-visor__escena,
.dk-visor--abierto .dk-visor__barra { opacity: 1; transform: none; }

.dk-visor__img {
	display: block; max-width: 100%; max-height: calc(100dvh - 140px);
	width: auto; height: auto; object-fit: contain;
	border-radius: 14px; border: 1px solid var(--linea);
	background: var(--superficie);
	transition: opacity .25s var(--curva);
	user-select: none; -webkit-user-drag: none;
}
.dk-visor--cargando .dk-visor__img { opacity: .35; }

.dk-visor__pie {
	max-width: 70ch; text-align: center; font-size: .9rem; line-height: 1.45; color: var(--ceniza);
}
.dk-visor__pie[hidden] { display: none; }

/* Entrada al cambiar de imagen. */
@keyframes dk-visor-der { from { opacity: 0; transform: translateX(28px); } to { opacity: 1; transform: none; } }
@keyframes dk-visor-izq { from { opacity: 0; transform: translateX(-28px); } to { opacity: 1; transform: none; } }
.dk-visor__escena--entra-der { animation: dk-visor-der .42s var(--curva); }
.dk-visor__escena--entra-izq { animation: dk-visor-izq .42s var(--curva); }

/* ------------------------------------------------------------- botones */
.dk-visor__btn {
	position: relative; z-index: 1;
	display: inline-grid; place-items: center;
	width: 48px; height: 48px; padding: 0; border-radius: 50%;
	background: rgb(255 255 255 / .06); color: var(--tiza);
	border: 1px solid rgb(255 255 255 / .14); cursor: pointer;
	transition: background-color .3s var(--curva), border-color .3s var(--curva), transform .3s var(--curva);
}
.dk-visor__btn:hover { background: var(--flama-honda); border-color: var(--flama); }
.dk-visor__btn:active { transform: scale(.94); }
.dk-visor__btn[hidden] { display: none; }
.dk-visor__btn svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.dk-visor__nav { opacity: 0; transition: opacity .28s var(--curva), background-color .3s var(--curva), border-color .3s var(--curva), transform .3s var(--curva); }
.dk-visor--abierto .dk-visor__nav { opacity: 1; }

/* En el móvil las flechas flotan sobre la imagen, abajo, para el pulgar. */
@media (max-width: 720px) {
	.dk-visor { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
	.dk-visor__escena { grid-column: 1; grid-row: 2; }
	.dk-visor__img { max-height: calc(100dvh - 170px); }
	.dk-visor__nav { position: absolute; bottom: max(18px, env(safe-area-inset-bottom)); }
	.dk-visor__nav--prev { left: calc(50% - 60px); }
	.dk-visor__nav--next { right: calc(50% - 60px); }
}

@media (prefers-reduced-motion: reduce) {
	.dk-visor__fondo, .dk-visor__barra, .dk-visor__escena, .dk-visor__nav, .dk-visor__img { transition: none; }
	.dk-visor__escena { transform: none; }
	.dk-visor__escena--entra-der, .dk-visor__escena--entra-izq { animation: none; }
}