:root {
  --ink: #2a2118;
  --muted: #6d5c48;
  --gold: #a6843d;
  --gold-soft: #e4d2a4;
  --paper: #f7f1e4;
  --line: rgba(166, 132, 61, 0.45);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(1100px 640px at 50% -8%, #fbf6ec, #e7dcc8 68%, #d9cbb6);
  font-family: "Shippori Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-weight: 500;
}

button,
img { font: inherit; }

.top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  width: min(92vw, 40rem);
  margin: 0 auto;
  padding: 1.4rem 0 0.4rem;
}

.brand {
  margin: 0;
  font-family: Cinzel, "Palatino Linotype", Palatino, serif;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.count {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
}

main {
  width: min(92vw, 40rem);
  margin: 0 auto;
  padding: 0.6rem 0 4rem;
}

.notice,
.error {
  margin: 0 0 1rem;
  text-align: center;
  line-height: 1.8;
}

.notice { color: var(--muted); }

.error { color: #7a2e24; }

.stage {
  display: flex;
  justify-content: center;
}

.card {
  position: relative;
  width: min(78vw, 380px);
  aspect-ratio: 2 / 3;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
  perspective: 1400px;
}

.card.is-open { cursor: default; }

.card:focus-visible,
.hint:focus-visible,
.again button:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
}

.card-inner {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  transition: transform 0.75s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.card.is-flipped .card-inner { transform: rotateY(180deg); }

.card.no-motion .card-inner { transition: none; }

.card-face {
  position: absolute;
  inset: 0;
  overflow: hidden;
  border-radius: 1.05rem;
  backface-visibility: hidden;
  box-shadow:
    0 18px 40px rgba(62, 44, 22, 0.18),
    0 2px 0 rgba(255, 248, 236, 0.4) inset;
}

.card-face.front { transform: rotateY(180deg); }

.card-face img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

.card-face.front img.reversed { transform: rotate(180deg); }

.hint-wrap { text-align: center; }

.hint,
.again button {
  margin: 1rem 0 0;
  padding: 0.35rem 0.2rem;
  border: 0;
  background: none;
  color: var(--muted);
  cursor: pointer;
  letter-spacing: 0.08em;
}

.again { text-align: center; }

.again button {
  border-bottom: 1px solid var(--line);
  letter-spacing: 0.14em;
}

.reading,
.color-panel { margin-top: 1.6rem; }

.reading h1 {
  margin: 0;
  text-align: center;
  font-size: 1.85rem;
  font-weight: 600;
  letter-spacing: 0.18em;
}

.en,
.orientation {
  margin: 0.35rem 0 0;
  text-align: center;
}

.en {
  font-family: Cinzel, "Palatino Linotype", Palatino, serif;
  font-size: 0.92rem;
  letter-spacing: 0.22em;
}

.orientation {
  color: var(--gold);
  letter-spacing: 0.42em;
  text-indent: 0.42em;
}

#meaning,
.story {
  margin-top: 1.4rem;
  font-size: 1.05rem;
  line-height: 2;
}

#meaning p,
.story p { margin: 0 0 1.15rem; }

.story .reveal {
  margin-top: 1.8rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
  text-align: center;
  letter-spacing: 0.06em;
}

.story .afterword {
  color: var(--muted);
  text-align: center;
}

#scene { margin: 0 0 1.6rem; }

#scene img,
.mirror {
  display: block;
  width: min(78vw, 380px);
  height: calc(min(78vw, 380px) * 3 / 2);
  margin-inline: auto;
  border-radius: 1.05rem;
  box-shadow: 0 18px 40px rgba(62, 44, 22, 0.18);
}

#scene img { object-fit: cover; height: auto; }

.mirror {
  position: relative;
  background:
    linear-gradient(var(--paper), #efe2cc);
  box-shadow:
    0 18px 40px rgba(62, 44, 22, 0.18),
    inset 0 0 0 1px #c6a45a,
    inset 0 0 0 10px var(--paper),
    inset 0 0 0 11px rgba(166, 132, 61, 0.7);
}

.mirror::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 30%;
  width: 36%;
  height: 34%;
  transform: translateX(-50%);
  border-radius: 50%;
  background:
    radial-gradient(ellipse at 50% 28%, rgba(255, 255, 255, 0.5), transparent 46%),
    var(--mirror);
  box-shadow:
    0 0 0 8px #f4ead4,
    0 0 0 11px #b0893e,
    0 0 0 15px #e6d3a2,
    inset 0 0 28px rgba(255, 255, 255, 0.28);
}

@media (prefers-reduced-motion: reduce) {
  .card-inner { transition: none; }
}