/* Overlay generico per sezioni (biografia/esposizioni) */
.section-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(5,5,7,0.96);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  animation: fadeInOverlay 220ms var(--transition);
}

@keyframes fadeInOverlay {
  from { opacity: 0; }
  to { opacity: 1; }
}

.section-overlay__inner {
  width: 100%;
  max-width: 520px;
  margin: 48px auto 32px auto;
  background: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: visible;
}

.section-overlay__close {
  position: absolute;
  top: 24px;
  right: 32px;
  background: none;
  border: none;
  color: var(--text);
  font-size: 2rem;
  cursor: pointer;
  z-index: 10;
  transition: color var(--transition);
}
.section-overlay__close:hover {
  color: var(--accent);
}

/* Overlay Esposizioni: scrollabile verticalmente */
.section-overlay--esposizioni,
.section-overlay--biografia {
  overflow-y: auto;
  align-items: stretch;
}
.section-overlay--esposizioni .section-overlay__inner,
.section-overlay--biografia .section-overlay__inner {
  max-width: 700px;
  width: 100%;
  padding: 32px 0 32px 0;
  overflow-y: visible;
}
.exhibition-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
  width: 100%;
}
.exhibition-item {
  background: var(--frame);
  border-radius: 16px;
  padding: 24px 20px 16px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: var(--shadow);
}
.exhibition-item img {
  width: 100%;
  max-width: 420px;
  border-radius: 10px;
  margin-bottom: 16px;
  object-fit: cover;
}
.exhibition-item__desc {
  color: var(--text);
  font-size: 1.08rem;
  text-align: center;
  margin: 0;
}
/* --- Menu persistente in alto a sinistra --- */
.menu-corner {
  position: fixed;
  top: 24px;
  left: 24px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.menu-toggle {
  background: var(--frame);
  border: none;
  border-radius: 50%;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: background var(--transition);
}

.menu-indicator {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  display: block;
}

.menu-content {
  background: var(--bg);
  color: var(--text);
  border-radius: 12px;
  box-shadow: var(--shadow);
  margin-top: 8px;
  min-width: 140px;
  padding: 12px 0;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px) scale(0.98);
  transition: opacity 180ms var(--transition), transform 180ms var(--transition);
  position: absolute;
  left: 0;
  top: 44px;
}

.menu-corner.menu-open .menu-content {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.menu-content ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.menu-content li {
  margin: 0;
  padding: 0;
}
.menu-link {
  display: block;
  width: 100%;
  padding: 10px 24px;
  color: var(--text);
  background: none;
  border: none;
  text-align: left;
  font-size: 1rem;
  font-family: inherit;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.menu-link:hover {
  background: var(--accent);
  color: var(--bg);
}
/* --- Menu in alto a sinistra --- */
.menu-corner {
  position: fixed;
  top: 24px;
  left: 24px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.menu-toggle {
  background: var(--frame);
  border: none;
  border-radius: 50%;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: background var(--transition);
}

.menu-indicator {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  display: block;
}

.menu-content {
  background: var(--bg);
  color: var(--text);
  border-radius: 12px;
  box-shadow: var(--shadow);
  margin-top: 8px;
  min-width: 140px;
  padding: 12px 0;
  display: none;
  animation: fadeInMenu 180ms ease;
}

@keyframes fadeInMenu {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.menu-content ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.menu-content li {
  margin: 0;
  padding: 0;
}
.menu-link {
  display: block;
  padding: 10px 24px;
  color: var(--text);
  text-decoration: none;
  font-size: 1rem;
  transition: background var(--transition), color var(--transition);
}
.menu-link:hover {
  background: var(--accent);
  color: var(--bg);
}

.menu-corner.menu-open .menu-content {
  display: block;
}
/* Minimal gallery skin derived from the existing aesthetic */
:root {
  color-scheme: dark;
  --bg: #050507;
  --text: #f5f4f1;
  --muted: rgba(245, 244, 241, 0.72);
  --frame: rgba(245, 244, 241, 0.15);
  --accent: #d4862d;
  --transition: 160ms ease;
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.25);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Space Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  overflow: hidden;
}

body.is-preloading [data-main-stack] {
  opacity: 0;
  filter: blur(6px);
}

body:not(.is-preloading) [data-main-stack] {
  opacity: 1;
  filter: none;
  transition:
    opacity 380ms ease,
    filter 380ms ease;
}

#bg-video {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
  filter: saturate(1.1) brightness(1.12) contrast(1.04);
  transition: opacity 320ms ease;
}

.backdrop {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: radial-gradient(circle at 40% 20%, rgba(0, 0, 0, 0.15), rgba(0, 0, 0, 0.42));
  mix-blend-mode: normal;
}

.fade-veil {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(circle at center, rgba(5, 5, 7, 0) 42%, rgba(5, 5, 7, 0.28));
  mix-blend-mode: screen;
}

.intro-banner {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: clamp(1.5rem, 4vw, 3.5rem);
  z-index: 5;
  background: transparent;
  color: var(--text);
  opacity: 0;
  animation: intro-in 420ms ease forwards 120ms;
  cursor: pointer;
}

.intro-banner__inner {
  max-width: min(960px, 92vw);
  text-align: center;
  line-height: 1.7;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  backdrop-filter: blur(2px);
}

.intro-banner__title {
  margin: 0 0 0.8rem;
  font-size: clamp(1.2rem, 2.8vw, 1.8rem);
  font-weight: 600;
  color: var(--text);
}

.intro-banner__body {
  margin: 0;
  font-size: clamp(0.92rem, 2vw, 1.08rem);
  color: var(--muted);
}

.intro-banner__hint {
  margin: 1.4rem 0 0;
  font-size: clamp(0.8rem, 1.6vw, 0.95rem);
  color: rgba(245, 244, 241, 0.55);
  letter-spacing: 0.18em;
}

.intro-banner.is-hidden {
  animation: intro-out 260ms ease forwards;
}

@keyframes intro-in {
  from {
    opacity: 0;
    filter: blur(8px);
  }
  to {
    opacity: 1;
    filter: none;
  }
}

@keyframes intro-out {
  to {
    opacity: 0;
    filter: blur(10px);
    pointer-events: none;
  }
}

body.intro-visible [data-main-stack] {
  filter: blur(10px);
  opacity: 0.3;
  pointer-events: none;
  transition: opacity 320ms ease, filter 320ms ease;
}

.main-stack {
  position: relative;
  height: 100vh;
  display: grid;
  grid-template-columns: minmax(24px, 64px) 1fr;
  z-index: 1;
}

.stack__nav {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  padding: clamp(0.75rem, 2vw, 1.25rem) 0;
  z-index: 2;
  pointer-events: none;
}

.stack__dot {
  width: 9px;
  height: 32px;
  border-radius: 999px;
  background: rgba(245, 244, 241, 0.16);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), opacity var(--transition);
  opacity: 0.45;
  pointer-events: auto;
}

.stack__dot[aria-current="true"] {
  background: var(--text);
  opacity: 1;
  transform: scale(1.05);
}

.stack__dot:focus-visible {
  outline: 1px solid var(--text);
  outline-offset: 4px;
}

.stack__viewport {
  position: relative;
  height: 100vh;
  overflow-y: scroll;
  scroll-snap-type: y mandatory;
  scroll-snap-stop: always;
  -webkit-overflow-scrolling: touch;
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: clamp(1.5rem, 4vw, 3.5rem) clamp(1.5rem, 5vw, 5rem);
  scroll-behavior: auto;
}

.stack__viewport::-webkit-scrollbar {
  width: 0;
  height: 0;
}

.frame {
  position: relative;
  min-height: 100vh;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: clamp(0.5rem, 4vw, 2rem) 0;
  transition: opacity var(--transition), filter var(--transition);
  opacity: 0.22;
}

.frame.is-active {
  opacity: 1;
}

.frame img {
  max-width: min(86vw, 880px);
  max-height: min(86vh, 960px);
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  filter: drop-shadow(var(--shadow));
  transition:
    opacity 140ms ease,
    transform 220ms ease;
  opacity: 0.95;
  margin-bottom: 1.2rem;
}

.frame__caption {
  position: static;
  margin-top: 0;
  margin-bottom: 2.2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  text-align: center;
  pointer-events: none;
  color: var(--text);
  text-shadow: 0 8px 34px rgba(0, 0, 0, 0.65);
}

.frame__caption-title {
  margin: 0;
  font-size: clamp(0.95rem, 2vw, 1.05rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.frame__caption-dimensions,
.frame__caption-description {
  margin: 0;
  font-size: clamp(0.82rem, 1.7vw, 0.95rem);
  color: rgba(245, 244, 241, 0.72);
  letter-spacing: 0.04em;
}

.stack__viewport.is-snapping .frame.is-active img {
  opacity: 0.78;
}

.frame.is-active img {
  opacity: 1;
}

.frame:hover img {
  transform: translateY(-2px);
}

@media (max-width: 900px) {
  .main-stack {
    grid-template-columns: 1fr;
  }

  .stack__nav {
    position: fixed;
    top: 50%;
    right: clamp(0.6rem, 3vw, 1rem);
    transform: translateY(-50%);
    height: auto;
    padding: 0.5rem 0;
  }

  .stack__dot {
    height: 26px;
  }
}

@media (max-width: 900px) {
  .frame {
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
  }
  .frame img {
    max-width: 98vw;
    max-height: 60vh;
    margin-bottom: 1.2rem;
  }
  .frame__caption {
    position: static;
    margin-top: 0;
    margin-bottom: 2.2rem;
    width: 100%;
    background: none;
    text-align: center;
    padding: 0 0.5rem;
    box-sizing: border-box;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}