/* Codex Artificialis — Card Grid */

.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  padding: 0 var(--space-sm);
}

/* ===== CARD SLOT ===== */
.card-slot {
  position: relative;
  aspect-ratio: var(--card-ratio);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  background: var(--bg-surface);
  border: 1px solid var(--border);
}

.card-slot:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.card-slot:active {
  transform: translateY(-2px);
}

/* ===== OWNED CARD ===== */
.card-slot--owned .card-slot__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity var(--transition-base);
}

.card-slot--owned .card-slot__info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-md) var(--space-sm);
  background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.6) 60%, transparent 100%);
}

.card-slot__name {
  font-family: var(--font-display);
  font-size: clamp(0.6rem, 1.2vw, 0.8rem);
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: var(--space-xs);
}

.card-slot__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-slot__rarity {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.card-slot__badge {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

/* ===== LOCKED CARD (PLACEHOLDER) ===== */
.card-slot--locked {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.card-slot--locked:hover {
  border-color: var(--border-hover);
}

.card-slot__silhouette {
  width: 60%;
  height: 40%;
  background: radial-gradient(ellipse, rgba(255, 255, 255, 0.03) 0%, transparent 70%);
  border-radius: 50%;
  margin-bottom: var(--space-md);
  position: relative;
}

.card-slot__silhouette::before {
  content: '';
  position: absolute;
  inset: 15%;
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 50%;
}

.card-slot__number {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--text-dim);
}

.card-slot__locked-label {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-top: var(--space-xs);
}

/* ===== NEWLY ADDED GLOW ===== */
.card-slot--new {
  animation: newCardGlow 3s ease-out;
}

@keyframes newCardGlow {
  0% { box-shadow: 0 0 20px rgba(212, 175, 55, 0.6); }
  100% { box-shadow: none; }
}

/* ===== NEW / NEW TIER BADGES ===== */
.card-slot__badge-new,
.card-slot__badge-new-tier {
  position: absolute;
  top: var(--space-xs);
  right: var(--space-xs);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  pointer-events: none;
  animation: badgeFadeIn 400ms ease-out, badgePulse 2s ease-in-out 400ms 2;
  z-index: 2;
}

.card-slot__badge-new {
  color: #fff;
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.85), rgba(255, 215, 0, 0.85));
  box-shadow: 0 0 10px rgba(212, 175, 55, 0.4);
}

.card-slot__badge-new-tier {
  color: #e8e6e3;
  background: linear-gradient(135deg, rgba(176, 38, 255, 0.75), rgba(0, 191, 255, 0.75));
  box-shadow: 0 0 10px rgba(176, 38, 255, 0.3);
}

@keyframes badgeFadeIn {
  from { opacity: 0; transform: scale(0.6) translateY(-4px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes badgePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}