/* ================================================================
   CardForge Hearts — heart button used across splash, gallery,
   lightbox, and editor sidebar (My Favorites tab). Tokens inherited
   from cardforge-base.css :root (obsidian system).
   ================================================================ */

.cf-heart {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 10px;
  background: rgba(13, 16, 21, 0.78);
  backdrop-filter: blur(8px);
  border: 1px solid var(--cf-ob-line-2);
  color: var(--cf-ob-text-2);
  border-radius: 999px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.5px;
  line-height: 1;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
  pointer-events: auto;
  user-select: none;
  -webkit-user-select: none;
}

.cf-heart i {
  font-size: 13px;
  color: inherit;
  transition: color 0.15s ease, transform 0.2s ease-out;
}

.cf-heart:hover,
.cf-heart:focus-visible {
  border-color: var(--cf-ob-ember-33);
  color: var(--cf-ob-text-1);
  outline: none;
}
.cf-heart:hover i {
  color: var(--cf-ob-ember);
}

.cf-heart:active {
  transform: scale(0.94);
}

/* Filled / hearted state — ember red, slight glow. */
.cf-heart.is-active {
  background: var(--cf-ob-ember-dim);
  border-color: var(--cf-ob-ember-33);
  color: var(--cf-ob-ember);
}
.cf-heart.is-active i {
  color: var(--cf-ob-ember);
  /* Subtle bounce on toggle-on. The keyframe runs once each time the
     class is added; CSS doesn't re-trigger on toggle-off, which is fine. */
  animation: cf-heart-pop 220ms ease-out;
}

@keyframes cf-heart-pop {
  0%   { transform: scale(1); }
  40%  { transform: scale(1.25); }
  100% { transform: scale(1); }
}

@media (prefers-reduced-motion: reduce) {
  .cf-heart,
  .cf-heart i { transition: none; }
  .cf-heart.is-active i { animation: none; }
}

/* Count digit — only present when withCount: true. */
.cf-heart__count {
  font-variant-numeric: tabular-nums;
  min-width: 8px;
  text-align: left;
}
.cf-heart__count:empty {
  display: none;
}

/* Lightbox variant uses a label instead of just an icon. */
.cf-heart--lightbox {
  padding: 8px 14px;
  font-size: 13px;
}
.cf-heart-slot {
  display: flex;
  justify-content: center;
  margin-bottom: 4px;
}
.cf-heart__label {
  /* Same family as the rest of the lightbox toolbar buttons. */
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 600;
  letter-spacing: 0.3px;
}

/* Splash variant — smaller, no count, sits over a card image. Uses
   absolute positioning so the host can place it relative to the card
   tile. The host (.cf-hero-fan__card / .cf-showcase-card) already has
   position: relative via the .mini-card base styles. */
.cf-heart--splash {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 6px 8px;
  z-index: 4;
  /* Slightly transparent at rest so it doesn't fight the card art;
     pops to full opacity on hover. */
  opacity: 0.85;
}
.cf-heart--splash:hover,
.cf-heart--splash:focus-visible,
.cf-heart--splash.is-active {
  opacity: 1;
}

/* Gallery variant — overlay button, top-right corner of the tile.
   Hosted on .cf-gallery__card-wrap (a positioned <div> that wraps the
   card button + heart as siblings, since nested <button>s are invalid
   HTML and the browser would otherwise flatten them into siblings in
   different grid cells). The wrap is the positioning anchor; the heart
   itself is absolute via the descendant rule below. Do NOT add a base
   `.cf-heart { position: relative }` here — it would override the
   splash variant (same specificity, later source order) and break the
   hero fan + showcase strip overlay. */
.cf-gallery__card-wrap {
  position: relative;
  display: block;
}
.cf-gallery__card-wrap .cf-heart {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 2;
}