/* ============ UI ============ */
.ui {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 36px 24px 48px;
  pointer-events: none;
  z-index: 50;
}
.ui > * { pointer-events: auto; }

.title-wrap {
  text-align: center;
  margin-top: 4px;
  opacity: 0.95;
}
.title {
  font-family: 'Cinzel', serif;
  font-weight: 900;
  letter-spacing: 0.28em;
  font-size: clamp(20px, 3.6vw, 36px);
  background: linear-gradient(180deg, #fff 30%, #aab 95%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 2px 24px rgba(180, 220, 255, 0.18);
}
.title .infinity {
  display: inline-block;
  margin: 0 0.3em;
  background: linear-gradient(90deg, var(--c-inf-1), var(--c-inf-2), var(--c-inf-3), var(--c-inf-4), var(--c-inf-1));
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: rainbowShift 4s linear infinite;
}
.subtitle {
  font-family: 'RocknRoll One', sans-serif;
  font-size: clamp(11px, 1.4vw, 13px);
  letter-spacing: 0.4em;
  opacity: 0.55;
  margin-top: 6px;
}
@keyframes rainbowShift {
  from { background-position: 0% 50%; }
  to   { background-position: 200% 50%; }
}

@media (max-width: 500px) {
  .ui { padding-top: 72px; }
}

.stats {
  position: absolute;
  top: 28px; right: 28px;
  font-family: 'Cinzel', serif;
  letter-spacing: 0.18em;
  font-size: 12px;
  opacity: 0.6;
  text-transform: uppercase;
  display: flex; gap: 14px;
}
.stats span b { color: #ffd97a; font-weight: 700; }

.bottom-area {
  display: grid;
  place-items: center;
  min-height: 60px;
}
.bottom-area > * {
  grid-area: 1 / 1;
}

/* Buttons */
.btn {
  position: relative;
  font-family: 'RocknRoll One', sans-serif;
  font-size: 18px;
  letter-spacing: 0.18em;
  color: #fff;
  padding: 18px 44px;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  background: linear-gradient(135deg, #2a2f60 0%, #4a3d8c 50%, #7c3d8c 100%);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.15) inset,
    0 0 0 4px rgba(140, 180, 255, 0.12),
    0 12px 40px -8px rgba(120, 80, 255, 0.6);
  transition: transform 0.15s ease, box-shadow 0.3s ease, opacity 0.3s ease;
  overflow: hidden;
}
.btn::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.35) 50%, transparent 70%);
  transform: translateX(-100%);
  animation: btnShine 3.5s ease-in-out infinite;
}
@keyframes btnShine {
  0%, 60% { transform: translateX(-100%); }
  85%, 100% { transform: translateX(120%); }
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.25) inset,
    0 0 0 4px rgba(180, 200, 255, 0.2),
    0 16px 50px -8px rgba(160, 100, 255, 0.85);
}
.btn:active { transform: translateY(1px) scale(0.98); }
.btn:disabled { opacity: 0.3; cursor: default; transform: none !important; }

.btn.secondary {
  background: linear-gradient(135deg, #1a1d3a 0%, #2a2f60 100%);
  font-size: 14px;
  padding: 12px 28px;
}

.hidden { opacity: 0 !important; pointer-events: none !important; transition: opacity 0.4s ease; }

/* Rarity announcement */
.rarity-banner {
  position: absolute;
  top: 26%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.5);
  font-family: 'Cinzel', serif;
  font-weight: 900;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  opacity: 0;
  pointer-events: none;
  z-index: 60;
  white-space: nowrap;
  text-align: center;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.6));
}
.rarity-banner .jp {
  display: block;
  font-family: 'RocknRoll One', sans-serif;
  letter-spacing: 0.2em;
  margin-top: 4px;
}
.rarity-banner.show {
  animation: bannerIn 1.6s cubic-bezier(.2,.9,.2,1) forwards;
}
@keyframes bannerIn {
  0%   { opacity: 0; transform: translate(-50%, -50%) scale(0.3); filter: blur(20px); }
  25%  { opacity: 1; transform: translate(-50%, -50%) scale(1.1); filter: blur(0); }
  70%  { opacity: 1; transform: translate(-50%, -50%) scale(1); }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(1.2); filter: blur(4px); }
}
.rarity-banner.normal   { font-size: 28px; color: var(--c-normal-2); }
.rarity-banner.rare     { font-size: 36px; color: var(--c-rare-2); text-shadow: 0 0 24px var(--c-rare-1); }
.rarity-banner.super    { font-size: 48px; color: var(--c-super-2); text-shadow: 0 0 30px var(--c-super-1), 0 0 60px var(--c-super-1); }
.rarity-banner.infinite { font-size: 60px; background: linear-gradient(90deg, var(--c-inf-1), var(--c-inf-2), var(--c-inf-3), var(--c-inf-4), var(--c-inf-5), var(--c-inf-1)); background-size: 300% 100%; -webkit-background-clip: text; background-clip: text; color: transparent; animation: bannerIn 1.6s cubic-bezier(.2,.9,.2,1) forwards, rainbowShift 2s linear infinite; }