/* 한국문화유물 2.5D 박물관 — 갤러리 홀 분위기 · exhibition-hall */
@import url("https://fonts.googleapis.com/css2?family=Noto+Serif+KR:wght@400;600;700&display=swap");

.ocm-hall {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  perspective: 1800px;
  perspective-origin: 50% 58%;
  overflow: hidden;
  background:
    radial-gradient(ellipse 70% 40% at 50% 0%, rgba(255, 230, 180, 0.14), transparent 55%),
    linear-gradient(90deg, #14100c 0%, #1e1914 12%, #221c16 50%, #1e1914 88%, #14100c 100%),
    linear-gradient(180deg, #0e0b09 0%, #1a1510 45%, #0c0a08 100%);
  font-family: "Noto Serif KR", "Batang", "Times New Roman", serif;
}
/* 1인칭: 회랑을 정면으로 바라보며 걸어 들어가는 시야 */
.ocm-root {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  perspective: 1600px;
  perspective-origin: 50% 62%;
  --ocm-wall: #1c1814;
  --ocm-wall-warm: #2a2218;
  --ocm-brass: #c4a35a;
  --ocm-cream: #f3ead7;
  --ocm-ink: #1a1410;
  --ocm-spot: rgba(255, 236, 190, 0.55);
}

.ocm-root.hidden { display: none !important; }

/* 좌·우 회랑 벽 */
.ocm-wall-left,
.ocm-wall-right {
  position: absolute;
  top: 0;
  bottom: 18%;
  width: 18%;
  z-index: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(
      180deg,
      transparent 0 72px,
      rgba(196, 163, 90, 0.06) 72px 73px
    ),
    linear-gradient(90deg, #120e0a, #1f1913 40%, transparent);
  box-shadow: inset -40px 0 60px rgba(0, 0, 0, 0.35);
}
.ocm-wall-left {
  left: 0;
  transform: perspective(900px) rotateY(28deg);
  transform-origin: left center;
  border-right: 1px solid rgba(196, 163, 90, 0.12);
}
.ocm-wall-right {
  right: 0;
  transform: perspective(900px) rotateY(-28deg);
  transform-origin: right center;
  background:
    repeating-linear-gradient(
      180deg,
      transparent 0 72px,
      rgba(196, 163, 90, 0.06) 72px 73px
    ),
    linear-gradient(-90deg, #120e0a, #1f1913 40%, transparent);
  box-shadow: inset 40px 0 60px rgba(0, 0, 0, 0.35);
  border-left: 1px solid rgba(196, 163, 90, 0.12);
}

.ocm-ceiling {
  position: absolute;
  left: 10%;
  right: 10%;
  top: 0;
  height: 16%;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(30, 24, 16, 0.92), transparent),
    repeating-linear-gradient(90deg, rgba(196, 163, 90, 0.08) 0 1px, transparent 1px 64px);
  transform: rotateX(68deg) translateZ(-30px);
  transform-origin: top center;
  box-shadow: inset 0 -24px 50px rgba(0, 0, 0, 0.4);
}

/* 천장 스포트라이트 3점 */
.ocm-spots {
  position: absolute;
  left: 12%;
  right: 12%;
  top: 2%;
  height: 42%;
  z-index: 2;
  pointer-events: none;
  display: flex;
  justify-content: space-around;
}
.ocm-spot {
  width: 28%;
  height: 100%;
  background: radial-gradient(
    ellipse 55% 70% at 50% 0%,
    var(--ocm-spot) 0%,
    rgba(255, 220, 150, 0.12) 35%,
    transparent 70%
  );
  opacity: 0.85;
  animation: ocm-spot-breathe 7s ease-in-out infinite;
}
.ocm-spot:nth-child(2) { animation-delay: 1.4s; opacity: 0.95; }
.ocm-spot:nth-child(3) { animation-delay: 2.8s; }
@keyframes ocm-spot-breathe {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

.ocm-floor {
  position: absolute;
  left: -6%;
  right: -6%;
  bottom: 0;
  height: 44%;
  z-index: 1;
  background:
    linear-gradient(90deg, transparent 0%, rgba(196, 163, 90, 0.07) 50%, transparent 100%),
    repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.035) 0 2px,
      transparent 2px 56px
    ),
    linear-gradient(180deg, #2a241c 0%, #16120e 55%, #0a0806 100%);
  transform: rotateX(58deg) translateZ(0);
  transform-origin: bottom center;
  box-shadow: 0 -50px 90px rgba(0, 0, 0, 0.55);
}
.ocm-floor::before {
  content: "";
  position: absolute;
  left: 22%;
  right: 22%;
  top: 8%;
  bottom: 20%;
  border: 1px solid rgba(196, 163, 90, 0.18);
  box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.25);
  pointer-events: none;
}

.ocm-titlebar {
  position: absolute;
  top: 5.5%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 6;
  text-align: center;
  pointer-events: none;
  color: var(--ocm-cream);
  letter-spacing: 0.18em;
}
.ocm-titlebar .ocm-title {
  margin: 0;
  font-size: clamp(0.85rem, 2vw, 1.1rem);
  font-weight: 600;
  color: #f0e2c4;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.7);
}
.ocm-titlebar .ocm-subtitle {
  margin: 4px 0 0;
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  opacity: 0.65;
  text-transform: uppercase;
}

.ocm-depth {
  position: absolute;
  left: 8%;
  right: 8%;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-end;
  gap: 6px 10px;
  pointer-events: none;
  transform-style: preserve-3d;
}
.ocm-depth-far {
  top: 14%;
  height: 26%;
  gap: 3px 7px;
  opacity: 0.42;
  filter: blur(0.8px) brightness(0.72) saturate(0.65);
  transform: translateZ(-140px) scale(0.7);
  z-index: 2;
}
.ocm-depth-far .ocm-pedestal {
  width: clamp(26px, 3.8vw, 40px);
  pointer-events: none;
}
.ocm-depth-far .ocm-case {
  height: clamp(34px, 5.5vh, 48px);
  border-radius: 2px;
}
.ocm-depth-far .ocm-base { height: 7px; }
.ocm-depth-mid {
  top: 28%;
  height: 28%;
  opacity: 0.78;
  filter: brightness(0.9) saturate(0.82);
  transform: translateZ(-56px) scale(0.86);
  z-index: 3;
  pointer-events: auto;
}
.ocm-depth-mid .ocm-pedestal {
  width: clamp(38px, 5.5vw, 60px);
}
.ocm-depth-mid .ocm-case {
  height: clamp(46px, 7.5vh, 68px);
}

.ocm-rail-wrap {
  position: absolute;
  left: 4%;
  right: 4%;
  bottom: 22%;
  height: 40%;
  overflow-x: auto;
  overflow-y: hidden;
  pointer-events: auto;
  -webkit-overflow-scrolling: touch;
  z-index: 5;
  transform: translateZ(40px);
  mask-image: linear-gradient(90deg, transparent, #000 4%, #000 96%, transparent);
}
.ocm-rail {
  position: relative;
  height: 100%;
  min-width: 100%;
  width: max-content;
  display: flex;
  flex-wrap: nowrap;
  align-items: flex-end;
  justify-content: flex-start;
  gap: clamp(14px, 2vw, 28px);
  padding: 12px 28px 8px;
}

.ocm-count {
  position: absolute;
  top: 12.5%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 6;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: rgba(243, 234, 215, 0.72);
  text-shadow: 0 1px 6px #000;
  pointer-events: none;
  white-space: nowrap;
}

.ocm-pedestal {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--ocm-cream);
  width: clamp(64px, 9vw, 96px);
  cursor: pointer;
  padding: 0;
  transform: translateZ(0);
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1), filter 0.4s ease;
  filter: brightness(0.88) saturate(0.92);
}
.ocm-pedestal.ocm-featured .ocm-case {
  border-color: rgba(220, 190, 120, 0.9);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.12) inset,
    0 16px 32px rgba(0, 0, 0, 0.45),
    0 0 28px rgba(196, 163, 90, 0.35);
}
.ocm-pedestal.ocm-featured::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -18%;
  width: 70%;
  height: 40%;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at 50% 0%, rgba(255, 236, 190, 0.45), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.ocm-pedestal {
  position: relative;
}
.ocm-label {
  margin-top: 8px;
  font-size: 0.65rem;
  line-height: 1.25;
  text-align: center;
  letter-spacing: 0.04em;
  text-shadow: 0 1px 4px #000;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: #e8dcc4;
}

.ocm-pedestal.is-active {
  transform: translateY(-18px) scale(1.14) translateZ(32px);
  filter: brightness(1.18) saturate(1.12);
  z-index: 3;
}
.ocm-pedestal.is-active .ocm-case {
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.2) inset,
    0 22px 40px rgba(0, 0, 0, 0.5),
    0 0 36px rgba(255, 220, 150, 0.4);
}

/* 유리 진열장 */
.ocm-case {
  height: clamp(68px, 12vh, 108px);
  border-radius: 3px 3px 2px 2px;
  background:
    linear-gradient(155deg, rgba(255, 255, 255, 0.28), rgba(255, 255, 255, 0.04) 38%, rgba(12, 16, 24, 0.2)),
    linear-gradient(180deg, rgba(40, 48, 58, 0.25), rgba(8, 10, 14, 0.45));
  border: 1px solid rgba(210, 190, 150, 0.4);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.1) inset,
    0 20px 36px rgba(0, 0, 0, 0.5),
    0 0 20px rgba(196, 163, 90, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(2.5px);
  position: relative;
  overflow: hidden;
}
.ocm-case::before {
  content: "";
  position: absolute;
  left: 6%;
  right: 6%;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(220, 190, 120, 0.55), transparent);
  z-index: 2;
}
.ocm-case::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    118deg,
    rgba(255, 255, 255, 0.32) 0%,
    transparent 26%,
    transparent 72%,
    rgba(255, 255, 255, 0.06) 100%
  );
  pointer-events: none;
}

.ocm-base {
  height: 16px;
  margin-top: -1px;
  border-radius: 1px 1px 4px 4px;
  background:
    linear-gradient(180deg, #5a4630, #2a1e12 55%, #16100a);
  box-shadow:
    0 12px 20px rgba(0, 0, 0, 0.45),
    inset 0 1px 0 rgba(220, 190, 120, 0.25);
  position: relative;
}
.ocm-base::after {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: -6px;
  height: 6px;
  background: rgba(0, 0, 0, 0.35);
  filter: blur(3px);
  border-radius: 50%;
}

/* 박물관 설명판 */
.ocm-plaque {
  pointer-events: none;
  position: absolute;
  left: 50%;
  bottom: 11%;
  transform: translateX(-50%);
  z-index: 7;
  width: min(560px, 90vw);
  padding: 14px 18px 16px;
  border-radius: 2px;
  background:
    linear-gradient(180deg, rgba(28, 22, 14, 0.92), rgba(14, 11, 8, 0.94));
  border: 1px solid rgba(196, 163, 90, 0.45);
  box-shadow:
    0 0 0 1px rgba(0, 0, 0, 0.4),
    0 16px 48px rgba(0, 0, 0, 0.55),
    inset 0 1px 0 rgba(255, 240, 200, 0.08);
  color: var(--ocm-cream);
  font-size: 0.84rem;
  line-height: 1.55;
  letter-spacing: 0.02em;
}
.ocm-plaque .ocm-plaque-kicker {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  color: var(--ocm-brass);
  margin-bottom: 6px;
  opacity: 0.9;
}
.ocm-plaque strong {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  color: #f5ecd8;
  letter-spacing: 0.04em;
}
.ocm-plaque span {
  display: block;
  font-size: 0.72rem;
  opacity: 0.7;
  margin: 4px 0 8px;
  letter-spacing: 0.06em;
}
.ocm-plaque p {
  margin: 0;
  color: rgba(243, 234, 215, 0.92);
}

.ocm-motif { position: relative; z-index: 1; }
.ocm-crown {
  width: 46px; height: 42px;
  background: radial-gradient(circle at 50% 80%, #f0d78c, #b8860b 70%);
  clip-path: polygon(8% 100%, 18% 42%, 28% 70%, 38% 18%, 50% 55%, 62% 18%, 72% 70%, 82% 42%, 92% 100%);
  box-shadow: 0 0 18px rgba(240, 215, 140, 0.55);
}
.ocm-celadon {
  width: 28px; height: 48px;
  border-radius: 40% 40% 28% 28% / 18% 18% 55% 55%;
  background: linear-gradient(160deg, #9fd0b8, #3f8f76 55%, #2a6a58);
  box-shadow: inset 0 -8px 12px rgba(0, 0, 0, 0.2), 0 0 16px rgba(95, 180, 150, 0.35);
}
.ocm-hangul {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  font-family: "Noto Serif KR", "Batang", serif;
  font-size: 15px; font-weight: 700; color: #2a1a08;
  background: linear-gradient(180deg, #f3e2b8, #d4b57a);
  border: 1px solid rgba(90, 60, 20, 0.35);
  box-shadow: 0 0 14px rgba(212, 181, 122, 0.4);
}
.ocm-buddha {
  width: 36px; height: 48px;
  border-radius: 50% 50% 40% 40% / 35% 35% 55% 55%;
  background: linear-gradient(180deg, #e8d5a8, #b8955a 60%, #8a6a38);
  box-shadow: 0 0 16px rgba(232, 213, 168, 0.35);
}
.ocm-woodblock {
  width: 48px; height: 34px;
  background: repeating-linear-gradient(90deg, #5a3a1a 0 3px, #3d2812 3px 6px);
  border: 1px solid #2a180c;
  box-shadow: inset 0 0 8px rgba(0, 0, 0, 0.45), 0 0 12px rgba(90, 58, 26, 0.4);
  transform: skewY(-4deg);
}
.ocm-baekja {
  width: 30px; height: 44px;
  border-radius: 45% 45% 35% 35% / 15% 15% 50% 50%;
  background: linear-gradient(160deg, #fffef8, #e8e2d4 70%, #cfc6b4);
  box-shadow: 0 0 14px rgba(255, 254, 248, 0.35);
}
.ocm-bell {
  width: 30px; height: 40px;
  border-radius: 50% 50% 40% 40% / 30% 30% 60% 60%;
  background: linear-gradient(160deg, #f0d78c, #8a6a20);
  box-shadow: 0 0 14px rgba(240, 215, 140, 0.45);
}
.ocm-tower {
  width: 26px; height: 48px;
  background: linear-gradient(180deg, #c4a882, #6a4e32);
  clip-path: polygon(35% 0, 65% 0, 80% 100%, 20% 100%);
}
.ocm-scroll {
  width: 44px; height: 28px;
  background: linear-gradient(90deg, #e8d5a8, #f5ecd0 50%, #e8d5a8);
  border-radius: 4px;
  box-shadow: inset 6px 0 0 rgba(0, 0, 0, 0.1), inset -6px 0 0 rgba(0, 0, 0, 0.1);
}
.ocm-mask {
  width: 34px; height: 40px;
  border-radius: 40% 40% 45% 45%;
  background: radial-gradient(circle at 50% 40%, #f0d9a8, #8b5a2b);
}
.ocm-zither {
  width: 48px; height: 14px;
  border-radius: 4px;
  background: linear-gradient(180deg, #6b4423, #3d2612);
  box-shadow: 0 0 0 1px rgba(240, 215, 140, 0.25);
}
.ocm-drum {
  width: 40px; height: 22px;
  border-radius: 8px;
  background: linear-gradient(90deg, #8b4513, #f5deb3 45%, #8b4513);
}
.ocm-hanbok {
  width: 36px; height: 42px;
  background: linear-gradient(180deg, #c45c6a 0 28%, #f5f0e6 28% 100%);
  border-radius: 8px 8px 4px 4px;
}
.ocm-hat {
  width: 40px; height: 22px;
  border-radius: 50%;
  background: #1a1a1a;
  box-shadow: 0 8px 0 -4px #222;
}
.ocm-sword {
  width: 8px; height: 48px;
  background: linear-gradient(180deg, #ddd, #888 40%, #444);
  border-radius: 2px;
  transform: rotate(-18deg);
}
.ocm-stone {
  width: 46px; height: 28px;
  background: #6a6a6a;
  box-shadow: 0 -10px 0 -2px #8a8a8a;
}
.ocm-tile {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: radial-gradient(circle, #8b6914, #3d2a0a);
}
.ocm-taegeuk {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: conic-gradient(#c0392b 0 180deg, #2980b9 180deg 360deg);
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.2);
}
.ocm-fan {
  width: 44px; height: 28px;
  background: #f5e6c8;
  clip-path: polygon(50% 100%, 0 20%, 100% 20%);
}
.ocm-tea {
  width: 28px; height: 22px;
  border-radius: 0 0 40% 40%;
  background: #f5f5f0;
  border: 2px solid #ccc;
}
.ocm-lacquer {
  width: 40px; height: 28px;
  border-radius: 4px;
  background: linear-gradient(135deg, #1a0a0a, #5a1a1a 40%, #c9a227 42%, #1a0a0a);
}
.ocm-patchwork {
  width: 40px; height: 40px;
  background:
    linear-gradient(90deg, #c45c6a 50%, #5b7fd6 50%),
    linear-gradient(#e8d5a8 50%, #2a6a58 50%);
  background-size: 50% 50%;
  background-position: 0 0, 100% 0, 0 100%, 100% 100%;
}

body.oe-museum-active .oe-scene-root .wbpc-scene-video-wrap {
  opacity: 0.18;
  filter: saturate(0.45) brightness(0.55) contrast(0.95);
}
body.oe-museum-active .oe-hologram.oe-shaped-ai {
  /* journey.css 박물관 배치 — 형상화 AI가 옆에서 안내 */
  z-index: 8;
}

@media (max-width: 640px) {
  .ocm-wall-left,
  .ocm-wall-right { width: 10%; opacity: 0.7; }
  .ocm-rail { gap: 10px; padding: 8px 16px; }
  .ocm-pedestal { width: 58px; }
  .ocm-plaque { font-size: 0.78rem; bottom: 12%; }
  .ocm-titlebar .ocm-subtitle { letter-spacing: 0.12em; }
}