.door-main-card {
  padding: clamp(1rem, 2.6vw, 1.45rem);
  background:
    radial-gradient(circle at top right, rgba(219, 234, 254, 0.5), transparent 30%),
    radial-gradient(circle at bottom left, rgba(254, 243, 199, 0.42), transparent 28%),
    rgba(255, 255, 255, 0.96);
}

.door-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr));
  gap: 1rem;
}

.door-card {
  display: block;
  width: 100%;
  position: relative;
  min-height: 13rem;
  padding: 0;
  border: 0;
  border-radius: 24px;
  background: transparent;
  cursor: pointer;
  perspective: 1200px;
}

.door-card:disabled {
  cursor: default;
  opacity: 1;
}

.door-card__prize {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 0.55rem;
  padding: 1rem;
  border-radius: 24px;
  background:
    radial-gradient(circle at top right, rgba(254, 243, 199, 0.58), transparent 30%),
    rgba(255, 255, 255, 0.98);
  border: 1px solid rgba(226, 232, 240, 0.96);
  box-shadow: var(--shadow-sm);
}

.door-card__panel {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  transform-style: preserve-3d;
  transform-origin: left center;
  transition: transform 620ms cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 620ms ease;
}

.door-card.is-open .door-card__panel {
  transform: perspective(1200px) rotateY(-112deg);
}

.door-card.is-open.is-no-animation .door-card__panel,
.door-card.is-no-animation .door-card__panel {
  transition: none;
}

.door-card__face {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 0.55rem;
  padding: 1rem;
  border-radius: 24px;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transform: translateZ(0);
}

.door-card__face--front {
  background:
    linear-gradient(180deg, rgba(191, 219, 254, 0.82), rgba(96, 165, 250, 0.92)),
    rgba(37, 99, 235, 0.9);
  border: 1px solid rgba(147, 197, 253, 0.92);
  box-shadow:
    0 22px 38px rgba(37, 99, 235, 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.36);
  color: #eff6ff;
}

.door-card__face--front::before {
  content: "";
  position: absolute;
  top: 10%;
  bottom: 10%;
  left: 14%;
  right: 14%;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.24);
}

.door-card__face--front::after {
  content: "";
  position: absolute;
  right: 18%;
  top: 50%;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 999px;
  background: rgba(253, 224, 71, 0.95);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.22);
}

.door-card__emoji {
  font-size: 2rem;
}

.door-card__title {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.door-card__hint {
  font-size: 0.9rem;
  color: rgba(239, 246, 255, 0.92);
}

.door-card__face--back {
  display: none;
}

.door-card__back-emoji {
  font-size: 1.8rem;
}

.door-card__back-value {
  text-align: center;
  font-size: 1.15rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.03em;
  word-break: break-word;
}

.door-card[data-state="locked"] {
  opacity: 0.62;
}

.door-card[data-state="locked"] .door-card__face--front {
  background:
    linear-gradient(180deg, rgba(203, 213, 225, 0.88), rgba(148, 163, 184, 0.96)),
    rgba(148, 163, 184, 0.92);
}

.door-card[data-state="closed"]:hover .door-card__panel,
.door-card[data-state="closed"]:focus-visible .door-card__panel {
  transform: translateY(-4px);
  box-shadow: 0 24px 36px rgba(37, 99, 235, 0.18);
}

.door-card[data-state="closed"].is-open:hover .door-card__panel,
.door-card[data-state="closed"].is-open:focus-visible .door-card__panel {
  transform: perspective(1200px) rotateY(-112deg);
}

.door-result-panel {
  margin-bottom: 1rem;
}

.door-result-panel strong {
  margin-bottom: 0.15rem;
}

.door-result-panel p {
  font-size: 1rem;
  line-height: 1.45;
}

.door-setup-actions {
  margin-top: 1rem;
}

.door-setup-actions .button {
  width: 100%;
}

.door-seo h2 {
  margin: 2rem 0 0.7rem;
  font-size: clamp(1.45rem, 2.4vw, 2rem);
  line-height: 1.14;
  letter-spacing: -0.04em;
}

.door-seo h2:first-of-type {
  margin-top: 1.1rem;
}

@media (max-width: 920px) {
  .door-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .door-grid {
    grid-template-columns: 1fr;
  }
}