/* ===============================
   GAME: ¿Cuándo canalizar? — Flip Cards
   3D CSS flip animation reveal
   =============================== */

/* ── Counter ── */
.flip-counter {
  text-align: center;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  letter-spacing: 0.04em;
}

.flip-counter #flip-count {
  color: var(--color-primary-dark);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-extrabold);
}

/* ── Cards grid ── */
.flip-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

/* ── Single flip card wrapper ── */
.flip-card {
  perspective: 1000px;
  height: 240px;
  cursor: pointer;
  animation: gameFadeUp 500ms var(--ease-out-expo, ease) both;
}

.flip-card:hover:not(.flip-card--done) .flip-card__front {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(212,145,74,0.38);
}

/* ── Inner (3D container that rotates) ── */
.flip-card__inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 600ms cubic-bezier(0.45, 0, 0.55, 1);
  border-radius: var(--radius-xl);
}

.flip-card__inner--flipped {
  transform: rotateY(180deg);
}

/* ── Shared face styles ── */
.flip-card__front,
.flip-card__back {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg);
  text-align: center;
  box-shadow: 0 8px 28px rgba(61,40,18,0.14);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

/* ── FRONT face ── */
.flip-card__front {
  background: linear-gradient(145deg, var(--color-primary), var(--color-primary-dark));
}

.flip-card__emoji {
  font-size: 3rem;
  line-height: 1;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.20));
  transition: transform 200ms ease;
}

.flip-card:hover:not(.flip-card--done) .flip-card__emoji {
  transform: scale(1.12);
}

.flip-card__title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: #fff;
  line-height: var(--line-height-snug);
  margin: 0;
}

.flip-card__hint {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.70);
  margin-top: var(--spacing-xs);
  animation: hintPulse 2s ease-in-out infinite;
}

@keyframes hintPulse {
  0%, 100% { opacity: 0.70; }
  50%       { opacity: 1; }
}

/* ── BACK face ── */
.flip-card__back {
  background: linear-gradient(145deg, #fff8f0, var(--color-background-alt, #fff3e6));
  border: 2px solid var(--color-primary);
  transform: rotateY(180deg);
  gap: var(--spacing-md);
}

.flip-card__emoji--sm {
  font-size: 1.8rem;
}

.flip-card__badge {
  background: linear-gradient(135deg, var(--color-success, #10b981), #059669);
  color: #fff;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-extrabold);
  padding: 4px 14px;
  border-radius: var(--radius-full);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.flip-card__reason {
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  line-height: var(--line-height-relaxed);
  margin: 0;
  font-style: italic;
}

/* ── Done state (after flip) ── */
.flip-card--done {
  cursor: default;
}

/* ── Completion area ── */
.flip-completion {
  animation: gameFadeUp 400ms ease both;
}

/* ═══════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════ */

/* Tablets (≤ 900px) */
@media (max-width: 900px) {
  .flip-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .flip-card {
    height: 220px;
  }
}

/* Phones (≤ 640px) */
@media (max-width: 640px) {
  .flip-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
  }
  .flip-card {
    height: 200px;
  }
  .flip-card__emoji {
    font-size: 2.2rem;
  }
  .flip-card__title {
    font-size: var(--font-size-xs);
  }
  .flip-card__hint {
    display: none;
  }
}

/* Very small phones (≤ 380px) */
@media (max-width: 380px) {
  .flip-grid {
    grid-template-columns: 1fr;
  }
  .flip-card {
    height: 180px;
  }
}