.card-main-card {
  padding: clamp(1rem, 2.6vw, 1.45rem);
  background:
    radial-gradient(circle at top left, rgba(219, 234, 254, 0.52), transparent 32%),
    radial-gradient(circle at bottom right, rgba(254, 243, 199, 0.4), transparent 30%),
    rgba(255, 255, 255, 0.96);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10.25rem, 1fr));
  gap: 1rem;
}

.card-card {
  display: block;
  position: relative;
  width: 100%;
  min-height: 14.25rem;
  padding: 0;
  border: 0;
  border-radius: 26px;
  background: transparent;
  cursor: pointer;
  perspective: 1400px;
}

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

.card-card__inner {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 560ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.card-card.is-open .card-card__inner {
  transform: rotateY(180deg);
}

.card-card__face {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 0.6rem;
  padding: 1.1rem;
  border-radius: 26px;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  overflow: hidden;
}

.card-card__face--back {
  background:
    radial-gradient(circle at 50% 20%, rgba(255, 255, 255, 0.28), transparent 28%),
    linear-gradient(160deg, rgba(37, 99, 235, 0.92), rgba(59, 130, 246, 0.9) 55%, rgba(96, 165, 250, 0.92)),
    rgba(37, 99, 235, 0.92);
  border: 1px solid rgba(191, 219, 254, 0.78);
  box-shadow:
    0 24px 42px rgba(29, 78, 216, 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.42);
  color: #eff6ff;
}

.card-card__face--back::before {
  content: "";
  position: absolute;
  inset: 0.8rem;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.card-card__face--back::after {
  content: "";
  position: absolute;
  inset: 1.3rem;
  border-radius: 18px;
  background:
    radial-gradient(circle at center, rgba(255, 255, 255, 0.12) 0 12%, transparent 12%),
    linear-gradient(45deg, transparent 46%, rgba(255, 255, 255, 0.08) 46% 54%, transparent 54%),
    linear-gradient(-45deg, transparent 46%, rgba(255, 255, 255, 0.08) 46% 54%, transparent 54%);
  opacity: 0.88;
}

.card-card__face--front {
  transform: rotateY(180deg);
  background:
    radial-gradient(circle at top right, rgba(254, 243, 199, 0.62), transparent 28%),
    radial-gradient(circle at bottom left, rgba(219, 234, 254, 0.45), transparent 25%),
    rgba(255, 255, 255, 0.99);
  border: 1px solid rgba(226, 232, 240, 0.95);
  box-shadow: var(--shadow-sm);
  color: #0f172a;
}

.card-card__face--front::before {
  content: "";
  position: absolute;
  inset: 0.8rem;
  border-radius: 20px;
  border: 1px solid rgba(245, 158, 11, 0.15);
}

.card-card__icon {
  font-size: 1.8rem;
  position: relative;
  z-index: 1;
}

.card-card__title,
.card-card__value {
  position: relative;
  z-index: 1;
  text-align: center;
  line-height: 1.16;
  letter-spacing: -0.03em;
}

.card-card__title {
  font-size: 1.22rem;
  font-weight: 800;
}

.card-card__value {
  font-size: clamp(1.05rem, 1.5vw, 1.24rem);
  font-weight: 800;
  max-width: 11ch;
  word-break: break-word;
}

.card-card__hint,
.card-card__meta {
  position: relative;
  z-index: 1;
  text-align: center;
  font-size: 0.92rem;
}

.card-card__hint {
  color: rgba(239, 246, 255, 0.92);
}

.card-card__meta {
  color: #475569;
}

.card-card[data-state="closed"]:hover,
.card-card[data-state="closed"]:focus-visible {
  transform: translateY(-4px) scale(1.01);
}

.card-card[data-state="closed"]:hover .card-card__face--back,
.card-card[data-state="closed"]:focus-visible .card-card__face--back {
  box-shadow:
    0 28px 46px rgba(29, 78, 216, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.44);
}

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

.card-card[data-state="locked"] .card-card__face--back {
  background:
    linear-gradient(180deg, rgba(203, 213, 225, 0.9), rgba(148, 163, 184, 0.96)),
    rgba(148, 163, 184, 0.92);
  border-color: rgba(203, 213, 225, 0.92);
  box-shadow: 0 16px 26px rgba(148, 163, 184, 0.16);
}

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

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

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

.card-modal-actions {
  display: grid;
  gap: 0.8rem;
}

.card-modal-actions .button {
  width: 100%;
}

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

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

@media (max-width: 1100px) {
  .card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 780px) {
  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 460px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}