/* 礦物箔閃卡：傾斜視差＋螺鈿折射＋雲母閃點。只掛在揭卡／把玩，不進世界渲染。 */

.holo-stage {
  --sx: 0;
  --sy: 0;
  --mx: 50%;
  --my: 50%;
  --rx: 0deg;
  --ry: 0deg;
  --foil: 0.48;
  --card-ratio: 3 / 4;
  position: relative;
  perspective: 920px;
  perspective-origin: 50% 45%;
  touch-action: none;
  user-select: none;
}

.holo-stage.holo-play {
  width: min(68vw, calc(64vh * 0.75), 20rem);
}

.holo-stage.holo-still {
  width: min(42vw, 11rem);
}

.holo-stage.holo-thumb {
  width: 100%;
}

.holo-flipper {
  position: relative;
  z-index: 1;
  transform-style: preserve-3d;
}

.holo-card {
  --thick: 2.5px;
  position: relative;
  width: 100%;
  aspect-ratio: var(--card-ratio, 3 / 4);
  border-radius: 8px;
  transform: rotateX(var(--rx)) rotateY(var(--ry));
  transform-style: preserve-3d;
  will-change: transform;
  cursor: grab;
}

.holo-stage.holo-play:active .holo-card {
  cursor: grabbing;
}

/* 四面封邊，側看是實心紙邊，不是兩張皮中空 */
.holo-edge {
  position: absolute;
  background: linear-gradient(180deg, #7a5834 0%, #3a2414 100%);
  pointer-events: none;
}

.holo-edge-left,
.holo-edge-right {
  top: 0;
  bottom: 0;
  width: var(--thick);
}

.holo-edge-left {
  left: 0;
  transform: translateX(-50%) rotateY(90deg);
}

.holo-edge-right {
  right: 0;
  transform: translateX(50%) rotateY(90deg);
}

.holo-edge-top,
.holo-edge-bottom {
  left: 0;
  right: 0;
  height: var(--thick);
}

.holo-edge-top {
  top: 0;
  transform: translateY(-50%) rotateX(90deg);
}

.holo-edge-bottom {
  bottom: 0;
  transform: translateY(50%) rotateX(90deg);
}

.holo-face {
  position: absolute;
  inset: 0;
  border-radius: 10px;
  overflow: hidden;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  box-shadow:
    0 0 0 1px rgba(52, 36, 18, 0.55),
    inset 0 0 0 2px rgba(248, 236, 208, 0.18);
}

.holo-front {
  isolation: isolate;
  transform: translateZ(calc(var(--thick) / 2));
  background:
    linear-gradient(180deg, #f3ead4 0%, #e4d3b0 100%);
}

.holo-back {
  transform: rotateY(180deg) translateZ(calc(var(--thick) / 2));
  background:
    radial-gradient(ellipse at 50% 28%, #f7f0dc 0%, #f3ecd4 58%, #e4d7b4 100%);
}

.holo-art {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  pointer-events: none;
}

.holo-foil-back {
  opacity: calc(var(--foil) * 0.16);
  filter: brightness(1.08) contrast(1.1) saturate(0.65);
  mix-blend-mode: soft-light;
}

.holo-verse {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16% 12% 14%;
  color: #1a1614;
  font-family: "Noto Serif TC", "Songti TC", serif;
}

.holo-verse-sheet {
  position: relative;
  width: 100%;
  max-width: 11.2rem;
  padding: 0.35rem 0.2rem 0.2rem;
}

.holo-verse-board {
  display: flex;
  flex-direction: row-reverse;
  justify-content: center;
  gap: 1.05em;
  min-height: 11.5rem;
}

.holo-verse-col {
  margin: 0;
  writing-mode: vertical-rl;
  font-weight: 700;
  font-size: clamp(1.35rem, 6vw, 1.85rem);
  line-height: 1.42;
  letter-spacing: 0.32em;
  text-shadow: 0 0 10px rgba(243, 236, 212, 0.95), 0 1px 0 rgba(243, 236, 212, 0.8);
}

.holo-verse-colophon {
  margin: 0.85rem 0 0;
  text-align: center;
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: #8b5a2b;
}

.holo-verse-colophon span {
  margin-left: 0.55em;
  letter-spacing: 0.16em;
}

.holo-verse-seal {
  position: absolute;
  right: 11%;
  bottom: 9%;
  margin: 0;
  width: 1.55rem;
  height: 1.55rem;
  display: grid;
  place-items: center;
  border: 1.5px solid #b33a3c;
  color: #b33a3c;
  background: rgba(243, 236, 212, 0.72);
  font-weight: 700;
  font-size: 0.52rem;
  letter-spacing: 0.12em;
  writing-mode: vertical-rl;
}

/* 礦物箔：金、銅、孔雀石、石青、朱砂、螺鈿，隨角度掃過 */
.holo-foil,
.holo-glitter,
.holo-bar,
.holo-glare,
.holo-bevel {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
}

.holo-foil {
  background-image:
    repeating-linear-gradient(
      0deg,
      hsl(38 72% 58%) 0%,
      hsl(88 38% 48%) 8%,
      hsl(198 48% 46%) 16%,
      hsl(8 62% 50%) 24%,
      hsl(46 80% 62%) 32%,
      hsl(160 22% 62%) 40%,
      hsl(38 72% 58%) 48%
    ),
    repeating-linear-gradient(
      125deg,
      rgba(18, 12, 8, 0.55) 0%,
      rgba(210, 180, 110, 0.35) 4%,
      rgba(240, 230, 200, 0.55) 5.2%,
      rgba(80, 120, 110, 0.28) 8%,
      rgba(18, 12, 8, 0.55) 14%
    );
  background-size: 260% 260%, 220% 220%;
  background-position:
    calc(50% + var(--sx) * -70%) calc(50% + var(--sy) * -70%),
    calc(50% + var(--sx) * 55%) calc(50% + var(--sy) * 55%);
  background-blend-mode: color, soft-light;
  mix-blend-mode: color-dodge;
  filter: brightness(0.78) contrast(1.65) saturate(1.15);
  opacity: var(--foil);
}

.holo-stage.is-front .holo-foil {
  animation: foil-ignite 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes foil-ignite {
  0% { filter: brightness(2.1) contrast(2) saturate(1.4); opacity: 0; }
  45% { opacity: 0.88; }
  100% { filter: brightness(0.78) contrast(1.65) saturate(1.15); opacity: var(--foil); }
}

.holo-glitter {
  background-image: var(--sparkle);
  background-size: 180% 180%;
  background-position:
    calc(50% + var(--sx) * -40%) calc(50% + var(--sy) * -40%);
  mix-blend-mode: screen;
  opacity: calc(0.18 + var(--foil) * 0.28);
}

.holo-bar {
  background: linear-gradient(
    calc(118deg + var(--sx) * 18deg),
    transparent 34%,
    rgba(255, 236, 190, 0.0) 42%,
    rgba(255, 248, 220, 0.55) 49%,
    rgba(180, 220, 230, 0.28) 52%,
    rgba(255, 236, 190, 0.0) 58%,
    transparent 66%
  );
  mix-blend-mode: overlay;
  opacity: 0.85;
}

.holo-glare {
  background: radial-gradient(
    farthest-corner circle at var(--mx) var(--my),
    rgba(255, 252, 240, 0.78) 0%,
    rgba(255, 244, 210, 0.22) 22%,
    rgba(20, 12, 8, 0.08) 70%,
    transparent 100%
  );
  mix-blend-mode: overlay;
}

.holo-bevel {
  background: linear-gradient(
    calc(125deg + var(--sx) * 20deg),
    rgba(255, 250, 236, 0.42) 0%,
    transparent 26%,
    transparent 74%,
    rgba(20, 10, 6, 0.28) 100%
  );
  mix-blend-mode: soft-light;
  box-shadow: inset 0 0 0 1px rgba(255, 244, 214, 0.22);
}

.holo-shadow {
  position: absolute;
  left: 10%;
  right: 10%;
  bottom: -7%;
  height: 16%;
  background: radial-gradient(ellipse at 50% 50%, rgba(18, 10, 6, 0.5), transparent 72%);
  transform: translate3d(calc(var(--sx) * 14px), calc(var(--sy) * 6px), 0);
  filter: blur(10px);
  pointer-events: none;
}

/* 把玩臺 */
.card-inspect {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: none;
  place-items: center;
  background:
    radial-gradient(ellipse at 50% 42%, rgba(70, 42, 24, 0.35), rgba(8, 6, 5, 0.82) 70%);
  cursor: pointer;
}

.card-inspect-spot {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: default;
}

.card-inspect-meta {
  margin-top: 1.15rem;
  text-align: center;
  color: #f0e2c8;
}

.card-inspect-name {
  font-family: "Noto Serif TC", serif;
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: 0.32em;
}

.card-inspect-src,
.card-inspect-feat,
.card-inspect-hint {
  font-family: "Noto Serif TC", serif;
  letter-spacing: 0.12em;
}

.card-inspect-src {
  margin-top: 0.25rem;
  color: #d4b48a;
  font-size: 0.82rem;
}

.card-inspect-feat {
  margin-top: 0.35rem;
  max-width: 22rem;
  color: #c8b49a;
  font-size: 0.78rem;
}

.card-inspect-hint {
  margin-top: 0.55rem;
  color: #9a8068;
  font-size: 0.72rem;
}

.card-inspect-close {
  position: absolute;
  top: -0.4rem;
  right: -0.2rem;
  color: #e8d4b8;
  font-size: 1.3rem;
}

.card-inspect.is-open {
  display: grid;
}

.card-inspect-close {
  appearance: none;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.holo-stage.is-flying {
  transform-origin: 50% 50%;
}