:root {
  --bg: #0a0a0a;
  --fg: #f5f1e8;
  --fg-dim: rgba(245, 241, 232, 0.6);
  --accent: #c9a961;
  --modal-bg: rgba(10, 10, 10, 0.92);
  --panel-bg: #141414;
  --border: rgba(245, 241, 232, 0.15);

  /* Colori flagship della mostra */
  --brand-teal: #66c1bf;   /* affordance interattiva (hover/focus) */
  --brand-red: #932826;    /* emphasis / identità (attivo, ornamenti) */

  /* Tipografia — Adobe Fonts (Typekit pdt2gli) */
  --font-title: "discordia", 'Cormorant Garamond', Georgia, serif;   /* Discordia Regular */
  --font-body: "forma-djr-deck", 'Inter', system-ui, -apple-system, sans-serif;   /* Forma DJR */
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* i form control non ereditano il font di default: forziamo Forma */
button, input, select, textarea {
  font-family: inherit;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

body.modal-open {
  overflow: hidden;
}

#canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 0;
}

#overlay {
  position: fixed;
  inset: 0;
  z-index: 10;
  pointer-events: none;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

#overlay > * {
  pointer-events: auto;
}

.btn-info {
  position: absolute;
  top: 24px;
  right: 24px;
  padding: 10px 18px;
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
  font-size: 12px;
  letter-spacing: 0.15em;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.btn-info:hover {
  border-color: var(--accent);
  background: rgba(201, 169, 97, 0.08);
}

.poster-stage {
  grid-row: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding: 40px;
}

.poster-column {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

/* Cartiglio del titolo — stile playbill teatrale */
.poster-title-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 28px;
  border-top: 1px solid var(--brand-teal);
  border-bottom: 1px solid var(--brand-teal);
  background: rgba(20, 20, 20, 0.5);
  max-width: min(90vw, 560px);
}

.title-ornament {
  color: var(--brand-red);
  font-size: 10px;
  flex-shrink: 0;
}

.poster-title {
  font-family: var(--font-title);
  font-style: italic;
  font-weight: 400;
  font-size: 22px;
  line-height: 1.2;
  text-align: center;
  color: var(--fg);
  margin: 0;
}

.poster-frame {
  position: relative;
  background: var(--panel-bg);
  border: 1px solid var(--border);
  height: min(68vh, 580px);
  aspect-ratio: 2 / 3;
  overflow: hidden;
  transition: border-color 0.2s;
}

.poster-frame:hover {
  border-color: var(--accent);
}

.poster-trigger {
  position: absolute;
  inset: 0;
  background: transparent;
  border: none;
  padding: 0;
  cursor: zoom-in;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Locandina croppata: altezza riempie la finestra, larghezza in auto,
   eccedenze laterali tagliate da overflow:hidden del trigger. */
.poster-trigger img {
  height: 100%;
  width: auto;
  max-width: none;
  display: block;
  transition: transform 0.4s ease;
}

.poster-frame:hover .poster-trigger img {
  transform: scale(1.02);
}

/* Action buttons sotto il poster */
.poster-actions {
  display: flex;
  gap: 12px;
  width: 100%;
  justify-content: center;
}

.btn-action {
  flex: 0 1 auto;
  min-width: 140px;
  padding: 10px 22px;
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, color 0.2s;
}

.btn-action:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(201, 169, 97, 0.06);
}

/* In-place panels (info + zoom) — sit on top of the poster frame, same size */
.poster-overlay {
  position: absolute;
  inset: 0;
  background: var(--panel-bg);
  border: 1px solid var(--accent);
  z-index: 2;
  display: flex;
  flex-direction: column;
  animation: panel-in 0.2s ease-out;
}

.poster-overlay[hidden] {
  display: none;
}

@keyframes panel-in {
  from { opacity: 0; transform: scale(0.98); }
  to { opacity: 1; transform: scale(1); }
}

.overlay-close {
  position: absolute;
  top: 10px;
  right: 12px;
  z-index: 3;
  background: transparent;
  border: none;
  color: var(--fg);
  font-size: 22px;
  width: 32px;
  height: 32px;
  cursor: pointer;
  line-height: 1;
}

.overlay-close:hover {
  color: var(--accent);
}

.overlay-content {
  flex: 1;
  padding: 48px 32px 32px;
  overflow-y: auto;
}

.overlay-content h2 {
  font-family: var(--font-title);
  font-style: italic;
  font-size: 20px;
  font-weight: 400;
  margin-bottom: 14px;
  line-height: 1.3;
}

.panel-meta {
  color: var(--fg-dim);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 22px;
}

.panel-description {
  line-height: 1.6;
  margin-bottom: 22px;
  font-size: 14px;
}

.panel-credits {
  font-size: 12px;
  color: var(--fg-dim);
  font-style: italic;
}

/* Zoom panel */
.zoom-viewport {
  flex: 1;
  overflow: hidden;
  position: relative;
  cursor: grab;
}

.zoom-viewport.is-dragging {
  cursor: grabbing;
}

.zoom-viewport img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  transform-origin: 0 0;
  user-select: none;
  pointer-events: none;
  will-change: transform;
}

.zoom-hint {
  position: absolute;
  bottom: 10px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg-dim);
  pointer-events: none;
}

.arrow {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
  width: 48px;
  height: 48px;
  font-size: 24px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, background 0.2s;
}

.arrow:hover {
  border-color: var(--accent);
  background: rgba(201, 169, 97, 0.08);
}

.room-nav {
  grid-row: 3;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  padding: 32px;
}

.indicator {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--fg-dim);
  text-transform: uppercase;
  min-width: 200px;
  text-align: center;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal[hidden] {
  display: none;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: var(--modal-bg);
  backdrop-filter: blur(8px);
}

.modal-panel {
  position: relative;
  background: var(--panel-bg);
  border: 1px solid var(--border);
  padding: 48px;
  max-width: 560px;
  width: calc(100% - 48px);
  max-height: 80vh;
  overflow-y: auto;
}

.modal-panel h2 {
  font-family: var(--font-title);
  font-style: italic;
  font-size: 24px;
  margin-bottom: 16px;
  font-weight: 400;
}

.modal-meta {
  color: var(--fg-dim);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.modal-description {
  line-height: 1.6;
  margin-bottom: 24px;
}

.modal-credits {
  font-size: 13px;
  color: var(--fg-dim);
  font-style: italic;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: transparent;
  border: none;
  color: var(--fg);
  font-size: 24px;
  cursor: pointer;
  width: 36px;
  height: 36px;
}

.modal-close:hover {
  color: var(--accent);
}

/* Modal "vista originale" — locandina nelle sue proporzioni native */
.modal-original .modal-backdrop {
  background: rgba(5, 5, 5, 0.95);
  backdrop-filter: blur(12px);
}

.modal-original-figure {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin: 0;
  padding: 0 48px;
  max-width: 100vw;
}

#modal-original-image {
  max-width: min(92vw, 1200px);
  max-height: 82vh;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  border: 1px solid var(--border);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6);
  animation: original-in 0.3s ease-out;
}

@keyframes original-in {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

.modal-original-caption {
  font-family: var(--font-title);
  font-style: italic;
  font-style: italic;
  font-size: 14px;
  color: var(--fg-dim);
  text-align: center;
  letter-spacing: 0.05em;
}

.modal-close-floating {
  position: absolute;
  top: 24px;
  right: 24px;
  z-index: 2;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
  font-size: 22px;
  width: 40px;
  height: 40px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: border-color 0.2s, color 0.2s;
}

.modal-close-floating:hover {
  border-color: var(--accent);
  color: var(--accent);
}

@media (max-width: 768px) {
  .poster-stage { gap: 12px; padding: 16px; }
  .poster-frame { height: 56vh; }
  .arrow { width: 40px; height: 40px; }
  .btn-info { top: 16px; right: 16px; font-size: 10px; padding: 8px 12px; }
  .modal-panel { padding: 32px 24px; }
  .poster-title { font-size: 18px; }
  .poster-title-card { padding: 8px 18px; gap: 10px; }
  .poster-actions { flex-direction: column; width: auto; }
  .btn-action { min-width: 180px; }
  #modal-original-image { max-height: 75vh; }
  .modal-original-figure { padding: 0 16px; }
  .modal-close-floating { top: 12px; right: 12px; }
}