/* ===== Card base ===== */
.card {
  width: 72px;
  height: 100px;
  border-radius: 8px;
  position: relative;
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  flex-shrink: 0;
  transition: transform 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              box-shadow 0.2s,
              opacity 0.3s;
  will-change: transform;
}

.card-inner {
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: var(--card-bg, #ffffff);
  border: 1.5px solid var(--card-border, #d1d5db);
  box-shadow: 0 2px 6px var(--card-shadow, rgba(0,0,0,0.18));
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 5px;
  overflow: hidden;
  position: relative;
}

/* ===== Face-down card ===== */
.card.face-down .card-inner {
  background: var(--card-back-bg, #1e3a8a);
  background-image: var(--card-back-pattern,
    repeating-linear-gradient(45deg,
      rgba(255,255,255,0.05) 0px, rgba(255,255,255,0.05) 1px,
      transparent 1px, transparent 8px),
    repeating-linear-gradient(-45deg,
      rgba(255,255,255,0.05) 0px, rgba(255,255,255,0.05) 1px,
      transparent 1px, transparent 8px)
  );
  border-color: var(--card-back-border, #1e3a8a);
}
.card.face-down .card-corner,
.card.face-down .card-center-suit { display: none; }

/* ===== Card corners ===== */
.card-corner {
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1;
}
.card-corner.bottom-right {
  align-self: flex-end;
  transform: rotate(180deg);
}
.card-rank {
  font-size: 0.85rem;
  font-weight: 700;
  font-family: 'Segoe UI', system-ui, sans-serif;
}
.card-suit-symbol { font-size: 0.65rem; }

/* ===== Center suit ===== */
.card-center-suit {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.5rem;
}

/* ===== Suit colors ===== */
.card[data-suit="hearts"]   .card-rank,
.card[data-suit="diamonds"] .card-rank,
.card[data-suit="hearts"]   .card-suit-symbol,
.card[data-suit="diamonds"] .card-suit-symbol,
.card[data-suit="hearts"]   .card-center-suit,
.card[data-suit="diamonds"] .card-center-suit {
  color: var(--card-red, #dc2626);
}
.card[data-suit="spades"] .card-rank,
.card[data-suit="clubs"]  .card-rank,
.card[data-suit="spades"] .card-suit-symbol,
.card[data-suit="clubs"]  .card-suit-symbol,
.card[data-suit="spades"] .card-center-suit,
.card[data-suit="clubs"]  .card-center-suit {
  color: var(--card-black, #1f2937);
}

/* ===== Player hand (bottom) ===== */
#my-hand .card {
  margin-left: -18px;
  cursor: pointer;
}
#my-hand .card:first-child { margin-left: 0; }

#my-hand .card:hover {
  transform: translateY(-10px);
  z-index: 10;
}
#my-hand .card.selected {
  transform: translateY(-26px);
  box-shadow: 0 4px 20px var(--accent-glow);
}
#my-hand .card.selected .card-inner {
  border-color: var(--accent);
}

/* ===== Wild card indicator ===== */
#my-hand .card.wild .card-inner {
  border-color: var(--wild-color, #a855f7);
  box-shadow: 0 0 6px var(--wild-glow, rgba(168, 85, 247, 0.4));
}

/* Legal / illegal play states */
#my-hand .card.legal {
  cursor: pointer;
}
#my-hand .card.illegal {
  opacity: 0.35;
  cursor: default;
  pointer-events: none;
}
#my-hand .card.legal:hover {
  transform: translateY(-12px);
}

/* ===== Opponent mini-cards ===== */
.opp-hand .card {
  width: 32px;
  height: 46px;
  margin-left: -14px;
  cursor: default;
}
.opp-hand .card:first-child { margin-left: 0; }
.opp-hand .card .card-inner { padding: 2px; }

/* ===== Discard pile card ===== */
#discard-pile .card {
  width: 80px;
  height: 112px;
  cursor: default;
  margin: 0;
}
#discard-pile .card .card-inner {
  box-shadow: 0 3px 12px rgba(0,0,0,0.3);
}

/* ===== Stock pile ===== */
#stock-pile .card {
  width: 80px;
  height: 112px;
  cursor: default;
  margin: 0;
  position: absolute;
}
#stock-pile .card:nth-child(1) { top: 0; left: 0; }
#stock-pile .card:nth-child(2) { top: 1px; left: 1px; }
#stock-pile .card:nth-child(3) { top: 2px; left: 2px; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .card { width: 54px; height: 76px; }
  .card-rank { font-size: 0.72rem; }
  .card-suit-symbol { font-size: 0.56rem; }
  .card-center-suit { font-size: 1.2rem; }
  .card-inner { padding: 3px; }

  #my-hand .card { margin-left: -14px; }
  #my-hand .card:hover  { transform: translateY(-6px); }
  #my-hand .card.selected { transform: translateY(-18px); }

  .opp-hand .card { width: 24px; height: 34px; margin-left: -10px; }
  #discard-pile .card, #stock-pile .card { width: 60px; height: 84px; }
}

@media (max-width: 480px) {
  .card { width: 44px; height: 62px; }
  .card-rank { font-size: 0.6rem; }
  .card-center-suit { font-size: 1rem; }

  #my-hand .card { margin-left: -12px; }
  #my-hand .card.selected { transform: translateY(-14px); }

  .opp-hand .card { width: 20px; height: 28px; margin-left: -8px; }
  #discard-pile .card, #stock-pile .card { width: 48px; height: 68px; }
}