/* Museo en casa — corrientes de los siglos XIX y XX
   Muros de galería: verde (s. XIX) y azul pizarra (s. XX); obras enmarcadas con cartela. */

:root {
  --wall-ant: #3D2925;
  --wall-ant-deep: #2B1C18;
  --wall-xix: #2A3A30;
  --wall-xix-deep: #1D2A22;
  --wall-xx: #272C38;
  --wall-xx-deep: #1B1F29;
  --paper: #F0E9D8;
  --paper-dim: #E4DCC6;
  --ink: #24261F;
  --ink-soft: #55584C;
  --gilt: #C6A55C;
  --gilt-deep: #8F7A45;
  --gilt-hi: #E2C88A;
  --text-wall: #E7E2CF;
  --muted-wall: #A9AF9B;
  --frame-w: 9px;
  --display: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --body: 'Archivo', 'Segoe UI', system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text-wall);
  background: var(--wall-xix-deep);
}

::selection { background: var(--gilt); color: var(--ink); }

a { color: var(--gilt-hi); }
:focus-visible { outline: 2px solid var(--gilt-hi); outline-offset: 3px; }

/* ── Barra superior ─────────────────────────────── */
.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 18px;
  padding: 10px 22px;
  background: color-mix(in srgb, var(--wall-xix-deep) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid color-mix(in srgb, var(--gilt) 35%, transparent);
}
.topbar__brand {
  font-family: var(--display); font-weight: 600; font-size: 1.25rem;
  color: var(--paper); text-decoration: none; white-space: nowrap; letter-spacing: .01em;
}
.topbar__brand .num { color: var(--gilt); }
.topbar__buscar {
  flex: 1; max-width: 430px; margin-left: auto;
  font-family: var(--body); font-size: .92rem;
  color: var(--ink); background: var(--paper);
  border: 1px solid var(--gilt-deep); border-radius: 3px;
  padding: 7px 13px;
}
.topbar__buscar::placeholder { color: var(--ink-soft); }
.topbar__siglos { display: flex; gap: 6px; }
.topbar__siglo {
  font-size: .78rem; font-weight: 600; letter-spacing: .14em;
  color: var(--muted-wall); text-decoration: none;
  border: 1px solid color-mix(in srgb, var(--gilt) 40%, transparent);
  border-radius: 3px; padding: 5px 11px;
}
.topbar__siglo:hover { color: var(--paper); border-color: var(--gilt); }

/* ── Distribución general ───────────────────────── */
.museo { display: grid; grid-template-columns: 252px minmax(0, 1fr); }
@media (max-width: 1080px) { .museo { grid-template-columns: minmax(0, 1fr); } }

/* Directorio lateral */
.rail {
  position: sticky; top: 58px; align-self: start;
  max-height: calc(100vh - 58px); overflow-y: auto;
  padding: 26px 8px 40px 20px;
  scrollbar-width: thin;
}
@media (max-width: 1080px) { .rail { display: none; } }
.rail h2 {
  font-family: var(--body); font-size: .68rem; font-weight: 700;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--muted-wall); margin: 18px 0 8px 8px;
}
.rail a {
  display: flex; gap: 9px; align-items: baseline;
  padding: 4.5px 8px; border-radius: 3px;
  font-size: .84rem; color: var(--muted-wall); text-decoration: none;
}
.rail a .num {
  font-family: var(--display); font-weight: 700; font-size: .8rem;
  color: var(--gilt-deep); min-width: 30px;
}
.rail a:hover { color: var(--paper); background: rgba(255, 255, 255, .05); }
.rail a.activa { color: var(--paper); background: rgba(255, 255, 255, .07); }
.rail a.activa .num { color: var(--gilt-hi); }
.rail a.apagada { opacity: .35; }

/* ── Vestíbulo (hero) ───────────────────────────── */
.vestibulo {
  min-height: 86vh;
  display: flex; flex-direction: column; justify-content: center;
  padding: 70px min(7vw, 90px) 50px;
  background:
    radial-gradient(1100px 500px at 75% -10%, rgba(198, 165, 92, .13), transparent 60%),
    var(--wall-xix-deep);
}
.vestibulo__eyebrow {
  font-size: .74rem; font-weight: 700; letter-spacing: .34em; text-transform: uppercase;
  color: var(--gilt); margin-bottom: 22px;
}
.vestibulo h1 {
  font-family: var(--display); font-weight: 600;
  font-size: clamp(2.9rem, 7.2vw, 5.6rem);
  line-height: 1.02; color: var(--paper); max-width: 14ch;
}
.vestibulo h1 em { font-style: italic; color: var(--gilt-hi); }
.vestibulo__sub {
  margin-top: 26px; max-width: 62ch; font-size: 1.02rem; color: var(--muted-wall);
}
.vestibulo__datos {
  display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px;
}
.vestibulo__dato {
  font-size: .8rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-wall);
  background: rgba(240, 233, 216, .06);
  border: 1px solid color-mix(in srgb, var(--gilt) 45%, transparent);
  border-radius: 3px; padding: 8px 14px;
}
.vestibulo__dato b { color: var(--gilt-hi); font-weight: 700; }
.vestibulo__muestrario {
  display: flex; gap: 26px; margin-top: 56px; align-items: flex-end; flex-wrap: wrap;
}
.vestibulo__muestrario .mini {
  height: 108px; width: auto; display: block;
  border: 6px solid transparent;
  border-image: linear-gradient(135deg, var(--gilt-hi), var(--gilt-deep) 38%, var(--gilt) 62%, #6E5A30) 1;
  box-shadow: 0 14px 26px -12px rgba(0, 0, 0, .65);
  background: var(--paper); padding: 4px;
}
@media (max-width: 640px) { .vestibulo__muestrario { display: none; } }

/* ── Salas ──────────────────────────────────────── */
.sala {
  padding: 74px min(7vw, 90px) 60px;
  border-top: 1px solid rgba(198, 165, 92, .22);
}
.sala[data-siglo='XV-XVIII'] { background: var(--wall-ant); }
.sala[data-siglo='XIX'] { background: var(--wall-xix); }
.sala[data-siglo='XX'] { background: var(--wall-xx); }

.sala.oculta, .obra.oculta { display: none; }

.sala__eyebrow {
  display: flex; align-items: center; gap: 14px;
  font-size: .72rem; font-weight: 700; letter-spacing: .3em; text-transform: uppercase;
  color: var(--gilt);
}
.sala__eyebrow::after { content: ''; flex: 0 0 90px; height: 1px; background: var(--gilt-deep); }
.sala h2 {
  font-family: var(--display); font-weight: 600;
  font-size: clamp(2.1rem, 4vw, 3.2rem); line-height: 1.08;
  color: var(--paper); margin-top: 10px;
}
.sala__ficha { margin-top: 6px; font-size: .9rem; color: var(--muted-wall); letter-spacing: .04em; }
.sala__ficha b { color: var(--text-wall); font-weight: 600; }
.sala__cuerpo {
  display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: 20px 56px; margin-top: 20px; max-width: 1080px;
}
@media (max-width: 860px) { .sala__cuerpo { grid-template-columns: minmax(0, 1fr); } }
.sala__resumen { font-size: 1.02rem; color: var(--text-wall); max-width: 60ch; }
.sala__claves { list-style: none; align-self: start; }
.sala__claves li {
  position: relative; padding: 3px 0 3px 22px;
  font-size: .88rem; color: var(--muted-wall);
}
.sala__claves li::before {
  content: '◆'; position: absolute; left: 2px; top: 3px;
  font-size: .6rem; color: var(--gilt);
}
.sala__artistas { margin-top: 14px; font-size: .88rem; color: var(--muted-wall); max-width: 1080px; }
.sala__artistas b { color: var(--gilt-hi); font-weight: 600; }

/* Pared de obras (masonry por columnas) */
.pared { columns: 3 320px; column-gap: 30px; margin-top: 40px; }
.obra { break-inside: avoid; margin: 0 0 34px; }
.obra__boton {
  display: block; width: 100%; border: 0; padding: 0;
  background: none; cursor: zoom-in; text-align: inherit;
}
.marco {
  border: var(--frame-w) solid #A98C4F;
  border-image: linear-gradient(135deg, var(--gilt-hi), var(--gilt-deep) 35%, var(--gilt) 60%, #67552D) 1;
  background: var(--paper); padding: 12px;
  box-shadow: 0 22px 34px -16px rgba(0, 0, 0, .6), 0 3px 8px rgba(0, 0, 0, .35);
}
.marco img { display: block; width: 100%; height: auto; box-shadow: 0 0 0 1px rgba(0, 0, 0, .35); }
.obra__boton:hover .marco { box-shadow: 0 26px 40px -14px rgba(0, 0, 0, .72), 0 3px 8px rgba(0, 0, 0, .4); }

/* Obra sin imagen: hueco de préstamo */
.marco--vacio { padding: 0; }
.prestamo {
  min-height: 190px; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 6px;
  background: var(--paper-dim); border: 1px dashed #B4A57E; margin: 12px;
}
.prestamo b {
  font-family: var(--display); font-style: italic; font-weight: 600;
  font-size: 1.25rem; color: var(--ink-soft);
}
.prestamo span { font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; color: #8D8568; }

/* Cartela */
.cartela {
  display: inline-block; margin: 14px 0 0 6px;
  background: var(--paper); color: var(--ink);
  border: 1px solid #C6BA96; border-radius: 2px;
  padding: 9px 14px 10px;
  box-shadow: 0 6px 14px -8px rgba(0, 0, 0, .5);
  max-width: calc(100% - 12px);
}
.cartela b { display: block; font-size: .95rem; font-weight: 600; line-height: 1.3; }
.cartela i { display: block; font-family: var(--display); font-size: .95rem; color: #4A4634; margin-top: 1px; }
.cartela span { display: block; font-size: .72rem; letter-spacing: .06em; color: var(--ink-soft); margin-top: 3px; }

/* ── Lightbox ───────────────────────────────────── */
.visor { border: 0; padding: 0; background: transparent; max-width: min(94vw, 1300px); }
.visor::backdrop { background: rgba(12, 14, 11, .93); }
.visor__marco { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.visor__marco img {
  max-width: min(92vw, 1240px); max-height: 76vh; width: auto; height: auto;
  border: 10px solid transparent;
  border-image: linear-gradient(135deg, var(--gilt-hi), var(--gilt-deep) 35%, var(--gilt) 60%, #67552D) 1;
  background: var(--paper); padding: 10px;
  box-shadow: 0 30px 70px rgba(0, 0, 0, .8);
}
.visor .cartela { margin: 0; text-align: center; }
.visor__nav {
  position: fixed; inset: 0; display: flex;
  align-items: center; justify-content: space-between;
  padding: 0 18px; pointer-events: none;
}
.visor__nav button, .visor__cerrar {
  pointer-events: auto; cursor: pointer;
  font-family: var(--body); font-size: 1.5rem; line-height: 1;
  color: var(--paper); background: rgba(36, 38, 31, .72);
  border: 1px solid var(--gilt-deep); border-radius: 3px;
  padding: 12px 16px;
}
.visor__nav button:hover, .visor__cerrar:hover { background: rgba(36, 38, 31, .95); border-color: var(--gilt-hi); }
.visor__cerrar { position: fixed; top: 16px; right: 18px; font-size: 1.1rem; }

/* ── Estado sin resultados / pie ────────────────── */
.sin-resultados {
  display: none; padding: 90px min(7vw, 90px); text-align: center;
  font-family: var(--display); font-style: italic; font-size: 1.5rem; color: var(--muted-wall);
}
.sin-resultados.visible { display: block; }

.pie {
  padding: 46px min(7vw, 90px) 60px;
  background: var(--wall-xx-deep);
  border-top: 1px solid rgba(198, 165, 92, .25);
  font-size: .82rem; color: var(--muted-wall); max-width: none;
}
.pie p { max-width: 78ch; }
.pie .sello {
  font-family: var(--display); font-style: italic; font-size: 1.05rem;
  color: var(--gilt); margin-bottom: 10px;
}

/* Aparición de salas al hacer scroll */
@media (prefers-reduced-motion: no-preference) {
  .sala.revelable { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
  .sala.revelada { opacity: 1; transform: none; }
}