:root {
  color-scheme: dark;
  --ink-950: #080605;
  --ink-900: #120d0b;
  --ink-850: #17100e;
  --walnut-700: #2f2117;
  --walnut-600: #4a321e;
  --walnut-500: #6e4a22;
  --gilt-400: #9c7537;
  --gilt-300: #c49b4d;
  --gilt-200: #ead49b;
  --ivory-100: #f2ece2;
  --plaque-ink: #dcc79d;
  --shadow-deep: rgba(0, 0, 0, 0.72);
  --shadow-soft: rgba(0, 0, 0, 0.34);
  --transition-slow: 900ms cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: 520ms cubic-bezier(0.4, 0, 0.2, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  min-height: 100svh;
  overflow: hidden;
  background:
    linear-gradient(180deg, #231611 0%, #110b09 100%);
  color: var(--ivory-100);
  font-family: "Fraunces", Georgia, serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before,
body::after {
  content: "";
  position: fixed;
  left: 0;
  width: 100%;
  pointer-events: none;
}

body::before {
  top: 0;
  height: 100%;
  background:
    radial-gradient(circle at 50% 22%, rgba(194, 154, 91, 0.08) 0 10%, transparent 10.5%) 0 0 / 16rem 16rem,
    radial-gradient(circle at 50% 76%, rgba(194, 154, 91, 0.06) 0 7%, transparent 7.5%) 8rem 8rem / 16rem 16rem,
    linear-gradient(45deg, transparent 45%, rgba(171, 120, 57, 0.05) 49%, transparent 53%) 0 0 / 16rem 16rem,
    linear-gradient(-45deg, transparent 45%, rgba(171, 120, 57, 0.05) 49%, transparent 53%) 0 0 / 16rem 16rem,
    repeating-linear-gradient(90deg, rgba(78, 48, 24, 0.22) 0 1px, rgba(0, 0, 0, 0) 1px 8rem),
    radial-gradient(circle at 50% 12%, rgba(238, 212, 160, 0.12), transparent 24%),
    linear-gradient(90deg, rgba(0, 0, 0, 0.46), transparent 14%, transparent 86%, rgba(0, 0, 0, 0.46));
  z-index: 1;
}

body::after {
  bottom: 0;
  height: 28svh;
  background:
    linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.14) 12%, rgba(0, 0, 0, 0.48) 100%),
    linear-gradient(90deg, rgba(117, 68, 28, 0.06) 0 14%, rgba(0, 0, 0, 0) 14% 86%, rgba(117, 68, 28, 0.06) 86% 100%);
  z-index: 1;
}

.backdrop {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.backdrop-image,
.backdrop-scrim,
.backdrop-architecture {
  position: absolute;
  inset: 0;
}

.backdrop-image {
  inset: -6%;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  filter: blur(42px) saturate(0.6) brightness(0.22) contrast(1.04);
  opacity: 0.76;
  transform: scale(1.08);
  transition:
    opacity var(--transition-slow),
    transform 1200ms ease;
}

.backdrop-scrim {
  background:
    radial-gradient(circle at center, transparent 0 28%, rgba(0, 0, 0, 0.2) 48%, rgba(0, 0, 0, 0.68) 100%),
    linear-gradient(180deg, rgba(9, 6, 5, 0.3), rgba(9, 6, 5, 0.76));
}

.backdrop-architecture {
  background:
    radial-gradient(circle at 50% 24%, rgba(230, 188, 116, 0.08) 0 9%, transparent 9.5%) 0 0 / 18rem 18rem,
    radial-gradient(circle at 50% 72%, rgba(230, 188, 116, 0.05) 0 6%, transparent 6.5%) 9rem 9rem / 18rem 18rem,
    linear-gradient(45deg, transparent 45%, rgba(210, 162, 85, 0.045) 49%, transparent 53%) 0 0 / 18rem 18rem,
    linear-gradient(-45deg, transparent 45%, rgba(210, 162, 85, 0.045) 49%, transparent 53%) 0 0 / 18rem 18rem,
    repeating-linear-gradient(90deg, rgba(255, 220, 167, 0.03) 0 1px, rgba(0, 0, 0, 0) 1px 9rem),
    linear-gradient(
      90deg,
      rgba(255, 220, 167, 0.04) 0 8%,
      rgba(0, 0, 0, 0) 8% 14%,
      rgba(255, 220, 167, 0.035) 14% 18%,
      rgba(0, 0, 0, 0) 18% 82%,
      rgba(255, 220, 167, 0.035) 82% 86%,
      rgba(0, 0, 0, 0) 86% 92%,
      rgba(255, 220, 167, 0.04) 92% 100%
    ),
    linear-gradient(180deg, rgba(255, 231, 184, 0.06), transparent 20%, transparent 78%, rgba(0, 0, 0, 0.26));
}

.room {
  position: relative;
  z-index: 2;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: clamp(1.25rem, 3vw, 2.5rem);
}

.salon {
  display: grid;
  justify-items: center;
  gap: clamp(1rem, 2vw, 1.6rem);
  width: min(100%, 90rem);
}

.frame-stage,
.plaque,
.painting-image {
  transition:
    opacity var(--transition-fast),
    transform var(--transition-slow);
}

.frame-stage {
  position: relative;
  padding: clamp(0.5rem, 1vw, 0.9rem);
}

.frame {
  position: relative;
  display: inline-block;
  padding: clamp(0.85rem, 1.4vw, 1.3rem);
  border: 1px solid rgba(248, 224, 166, 0.22);
  background:
    linear-gradient(
      135deg,
      #41280d 0%,
      #8f6328 16%,
      #efd9a7 28%,
      #9f6f2b 42%,
      #5b3913 54%,
      #c19647 70%,
      #f0db9d 82%,
      #613d15 100%
    );
  box-shadow:
    0 1rem 1.25rem rgba(0, 0, 0, 0.38),
    0 2rem 4rem rgba(0, 0, 0, 0.48),
    inset 0 0 0 1px rgba(255, 239, 194, 0.18),
    inset 0 0 1.6rem rgba(58, 28, 2, 0.42);
}

.frame::before,
.frame::after {
  content: "";
  position: absolute;
  inset: clamp(0.4rem, 0.75vw, 0.65rem);
  border: 1px solid rgba(75, 38, 5, 0.36);
  pointer-events: none;
}

.frame::after {
  inset: clamp(0.7rem, 1.15vw, 0.95rem);
  border-color: rgba(255, 238, 197, 0.28);
  mix-blend-mode: screen;
}

.frame-liner {
  position: relative;
  padding: clamp(0.5rem, 0.85vw, 0.85rem);
  background:
    linear-gradient(135deg, rgba(42, 27, 17, 0.98), rgba(17, 10, 8, 0.98)),
    linear-gradient(135deg, rgba(255, 236, 197, 0.06), transparent);
  box-shadow:
    inset 0 0 0 1px rgba(255, 238, 198, 0.08),
    inset 0 1.25rem 2rem rgba(0, 0, 0, 0.34);
}

.painting-image {
  display: block;
  width: auto;
  height: auto;
  max-width: min(78vw, 78rem);
  max-height: min(68svh, 52rem);
  background: #080605;
  box-shadow: 0 1.4rem 3.2rem rgba(0, 0, 0, 0.42);
}

.plaque {
  position: relative;
  width: min(42rem, calc(100vw - 3.5rem));
  padding: 0.8rem clamp(1.1rem, 1.7vw, 1.45rem) 0.9rem;
  border: 1px solid rgba(253, 221, 165, 0.16);
  background:
    linear-gradient(180deg, rgba(85, 57, 30, 0.86), rgba(37, 24, 15, 0.9)),
    linear-gradient(135deg, rgba(255, 235, 193, 0.08), transparent);
  box-shadow:
    0 0.7rem 1.5rem rgba(0, 0, 0, 0.3),
    inset 0 0 0 1px rgba(255, 242, 211, 0.04);
  text-align: center;
  backdrop-filter: blur(18px);
}

.plaque::before {
  content: "";
  position: absolute;
  top: 0.55rem;
  left: 1rem;
  right: 1rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(246, 221, 164, 0.4), transparent);
}

.plaque h1,
.plaque p {
  margin: 0;
}

.plaque h1 {
  font-family: "Cormorant Garamond", "Times New Roman", serif;
  font-size: clamp(1.02rem, 1.45vw, 1.55rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ivory-100);
  text-wrap: balance;
}

.plaque p {
  margin-top: 0.28rem;
  font-size: clamp(0.68rem, 0.82vw, 0.8rem);
  line-height: 1.35;
  color: rgba(220, 199, 157, 0.88);
  font-style: italic;
  text-wrap: pretty;
}

.nav {
  position: fixed;
  top: 50%;
  z-index: 3;
  width: clamp(2.9rem, 4.6vw, 3.85rem);
  height: clamp(3.8rem, 6vw, 5rem);
  border: 1px solid rgba(253, 226, 180, 0.14);
  background:
    linear-gradient(180deg, rgba(63, 38, 22, 0.72), rgba(20, 12, 8, 0.88)),
    linear-gradient(135deg, rgba(255, 234, 194, 0.08), transparent);
  color: var(--gilt-200);
  box-shadow:
    0 0.8rem 1.4rem rgba(0, 0, 0, 0.22),
    inset 0 0 0 1px rgba(255, 245, 221, 0.04);
  cursor: pointer;
  transform: translateY(-50%);
  transition:
    opacity var(--transition-fast),
    transform var(--transition-fast),
    border-color var(--transition-fast),
    background-color var(--transition-fast);
}

.nav span {
  display: block;
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(2.4rem, 3vw, 3.2rem);
  line-height: 1;
  transform: translateY(-0.12rem);
}

.nav:hover,
.nav:focus-visible {
  border-color: rgba(253, 226, 180, 0.32);
  transform: translateY(-50%) scale(1.02);
  outline: none;
}

.nav:active {
  transform: translateY(-50%) scale(0.98);
}

.nav-prev {
  left: clamp(0.75rem, 2vw, 1.6rem);
}

.nav-next {
  right: clamp(0.75rem, 2vw, 1.6rem);
}

body.is-transitioning .frame-stage,
body.is-transitioning .plaque {
  opacity: 0.14;
  transform: translateY(0.8rem) scale(0.992);
}

body.is-transitioning .backdrop-image {
  opacity: 0.68;
  transform: scale(1.13);
}

@media (max-width: 860px) {
  body {
    overflow: auto;
  }

  .room {
    min-height: 100svh;
    padding:
      clamp(1rem, 4vw, 1.4rem)
      clamp(1rem, 4vw, 1.4rem)
      clamp(5rem, 10vw, 6.2rem);
  }

  .painting-image {
    max-width: min(100%, 88vw);
    max-height: min(54svh, 42rem);
  }

  .plaque {
    width: min(100%, 36rem);
  }

  .nav {
    top: auto;
    bottom: 1rem;
    transform: none;
    height: 3.6rem;
  }

  .nav:hover,
  .nav:focus-visible,
  .nav:active {
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}