/* memory-game.css - Estilos unificados y escalables para la versión accesible del juego de memoria
   Se basa en variables y mantiene coherencia con el tema general.
*/
:root {
  --mg-card-border: #667eea;
  --mg-bg-light: #f8f9fa;
  --mg-bg-accent: #667eea;
  --mg-bg-accent-alt: #764ba2;
  --mg-success-grad: linear-gradient(135deg,#4CAF50,#2e7d32);
  --mg-radius: 12px;
  --mg-radius-lg: 16px;
  --mg-fuse-glow: rgba(102,126,234,.9);
  --mg-text-dark: #222;
  --mg-text-light: #fff;
  --mg-focus: #ffd54f;
  --mg-progress-bg: rgba(0,0,0,.1);
  --mg-progress-fill: linear-gradient(90deg,#667eea,#764ba2);
  --mg-placeholder-a: #ece9f1;
  --mg-placeholder-b: #e1def0;
}

.memory-accessible { color: var(--mg-text-dark); font-family: 'Inter', system-ui, sans-serif; }
[data-theme='dark'] .memory-accessible { color:#eee; }
.memory-header { margin-bottom:1rem; }
.memory-toolbar { display:flex; gap:.5rem; flex-wrap:wrap; margin:.5rem 0 1rem; }
.memory-toolbar select, .memory-toolbar button { padding:.5rem .75rem; border-radius:8px; border:1px solid #ccc; background:#fff; cursor:pointer; }
[data-theme='dark'] .memory-toolbar select, [data-theme='dark'] .memory-toolbar button { background:#1e1e2a; color:#f5f5f5; border-color:#444; }
.memory-grid { display:grid; gap:12px; grid-template-columns:repeat(auto-fit,minmax(90px,1fr)); }
.memory-card-btn { position:relative; aspect-ratio:3/4; border:2px solid var(--mg-card-border); border-radius:var(--mg-radius); background:var(--mg-bg-light); cursor:pointer; display:flex; align-items:center; justify-content:center; font-size:1.4rem; transition:transform .3s, background .3s; overflow:hidden; }
.memory-card-btn.placeholder { background:linear-gradient(135deg,#f0f2f9,#e7eaf4); }
[data-theme='dark'] .memory-card-btn.placeholder { background:linear-gradient(135deg,#2a2f3b,#343b48); border-color:#6f80d6; }
.memory-card-btn.placeholder:not([aria-pressed='true']):hover { box-shadow:0 0 0 2px rgba(102,126,234,.35),0 3px 8px -2px rgba(0,0,0,.25); }
[data-theme='dark'] .memory-card-btn.placeholder:not([aria-pressed='true']):hover { box-shadow:0 0 0 2px rgba(150,170,255,.4),0 4px 10px -2px rgba(0,0,0,.6); }
.memory-card-btn[aria-pressed='true'] { background:var(--mg-bg-accent); color:var(--mg-text-light); }
.memory-card-btn.matched { background:var(--mg-success-grad); color:var(--mg-text-light); border-color:#2e7d32; }
.memory-card-btn:focus { outline:3px solid var(--mg-focus); outline-offset:2px; }
.memory-progress { width:100%; height:14px; background:var(--mg-progress-bg); border-radius:8px; overflow:hidden; position:relative; }
.memory-progress-fill { position:absolute; inset:0; width:0%; background:var(--mg-progress-fill); transition:width .4s ease; }
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; border:0; }
.memory-complete-panel { text-align:center; margin-top:1.5rem; padding:1.5rem; border:2px dashed var(--mg-card-border); border-radius:16px; }
.memory-action-btn { font-weight:600; }
.memory-status { margin-top:1rem; min-height:1.2rem; font-size:.9rem; opacity:.85; }
/* Chips de racha y bonus */
.memory-stats-row { display:flex; flex-wrap:wrap; gap:.75rem; align-items:center; margin-top:.5rem; font-size:.85rem; }
.memory-streak-chip, .memory-bonus-chip { background:linear-gradient(135deg,#ff9800,#ffb74d); color:#222; padding:.35rem .6rem; border-radius:999px; font-weight:600; display:inline-flex; gap:.35rem; align-items:center; box-shadow:0 2px 4px rgba(0,0,0,.15); line-height:1; }
[data-theme='dark'] .memory-streak-chip, [data-theme='dark'] .memory-bonus-chip { color:#111; }
.memory-bonus-chip { background:linear-gradient(135deg,#8bc34a,#cddc39); animation:bonusPop .4s ease; }
@keyframes bonusPop { 0%{ transform:scale(.6); opacity:0; } 60%{ transform:scale(1.08); opacity:1; } 100%{ transform:scale(1); opacity:1; } }
.memory-bonus-chip[hidden], .memory-streak-chip[hidden]{ display:none !important; }
/* Toggle reducir animaciones */
.memory-reduce-motion-toggle { display:flex; align-items:center; gap:.35rem; font-size:.7rem; font-weight:600; background:rgba(0,0,0,.05); padding:.3rem .55rem; border-radius:8px; cursor:pointer; -webkit-user-select:none; user-select:none; }
.memory-reduce-motion-toggle input { margin:0; }
[data-theme='dark'] .memory-reduce-motion-toggle { background:rgba(255,255,255,.08); }

/* Modo reduce-motion: desactivar transiciones y animaciones intensas */
.memory-accessible.reduce-motion * { animation-duration:.001s !important; animation-iteration-count:1 !important; transition:none !important; }
.memory-accessible.reduce-motion .feedback-chip { animation:none !important; opacity:1 !important; transform:none !important; }

/* === Estilos para Chips de Feedback Dinámicos === */
.memory-stats-row { position:relative; }
.memory-feedback-chips { position:absolute; left:50%; top:50%; transform:translate(-50%,-50%); display:flex; flex-direction:column; align-items:center; gap:.5rem; pointer-events:none; }
.feedback-chip { padding:.3rem .8rem; border-radius:20px; font-size:.8rem; font-weight:700; color:#fff; box-shadow:0 4px 10px rgba(0,0,0,.2); animation:chip-fade-in-out 1.5s ease-in-out forwards; white-space:nowrap; -webkit-backdrop-filter:blur(4px); backdrop-filter:blur(4px); }
.chip-score { background:var(--mg-bg-accent); }
.chip-streak { background:linear-gradient(45deg,#FF9800,#FFC107); }
.chip-bonus { background:linear-gradient(45deg,#4CAF50,#8BC34A); font-size:.9rem; padding:.4rem 1rem; animation:chip-fade-in-out 2s ease-in-out forwards; }
.chip-penalty { background:linear-gradient(45deg,#e53935,#ff7043); box-shadow:0 4px 10px rgba(229,57,53,.4); }
[data-theme='dark'] .chip-penalty { box-shadow:0 4px 10px rgba(255,112,67,.5); }
@keyframes chip-fade-in-out { 0%{ opacity:0; transform:translateY(20px) scale(.8);} 20%{ opacity:1; transform:translateY(0) scale(1);} 80%{ opacity:1; transform:translateY(0) scale(1);} 100%{ opacity:0; transform:translateY(-20px) scale(.8);} }

/* Animaciones específicas mejoradas */
@keyframes chip-bounce-in {
  0% { opacity:0; transform:translateY(22px) scale(.55); }
  18% { opacity:1; transform:translateY(-8px) scale(1.08); }
  32% { transform:translateY(4px) scale(.96); }
  46% { transform:translateY(-4px) scale(1.03); }
  60% { transform:translateY(0) scale(1); }
  80% { opacity:1; }
  100% { opacity:0; transform:translateY(-18px) scale(.85); }
}
@keyframes chip-shake-out {
  0% { opacity:0; transform:translateY(14px) scale(.7); }
  12% { opacity:1; transform:translateY(0) scale(1); }
  22% { transform:translateX(-4px) rotate(-2deg); }
  30% { transform:translateX(4px) rotate(2deg); }
  38% { transform:translateX(-3px) rotate(-1.6deg); }
  46% { transform:translateX(3px) rotate(1.6deg); }
  56% { transform:translateX(-2px) rotate(-1deg); }
  66% { transform:translateX(2px) rotate(1deg); }
  76% { transform:translateX(0) rotate(0); }
  88% { opacity:1; }
  100% { opacity:0; transform:translateY(-14px) scale(.85); }
}
.chip-streak { animation:chip-bounce-in 1.9s cubic-bezier(.25,.9,.35,1) forwards; }
.chip-penalty { animation:chip-shake-out 1.6s ease-in-out forwards; }
/* Placeholder artístico */
/* Nuevo placeholder croquis estructurado */
.memory-card-btn.placeholder { background:linear-gradient(135deg,#f5f6fa,#eceff4); position:relative; }
[data-theme='dark'] .memory-card-btn.placeholder { background:linear-gradient(135deg,#2b2f3a,#353c47); }
.memory-card-skeleton { position:absolute; inset:0; display:flex; align-items:center; justify-content:center; padding:.4rem; }
.memory-card-skeleton .sketch-frame { position:relative; width:100%; height:100%; border:2px dashed rgba(102,126,234,.55); border-radius:10px; display:flex; align-items:center; justify-content:center; overflow:hidden; }
[data-theme='dark'] .memory-card-skeleton .sketch-frame { border-color:rgba(160,176,255,.5); }
.memory-card-skeleton .sketch-lines { position:absolute; inset:0; pointer-events:none; }
.memory-card-skeleton .sketch-line { position:absolute; background:linear-gradient(90deg,rgba(102,126,234,.15),rgba(118,75,162,.15)); border-radius:2px; }
.memory-card-skeleton .sketch-line.a { top:18%; left:10%; width:80%; height:10%; }
.memory-card-skeleton .sketch-line.b { top:40%; left:18%; width:64%; height:10%; }
.memory-card-skeleton .sketch-line.c { top:62%; left:6%; width:88%; height:10%; }
.memory-card-skeleton .card-index-badge { position:absolute; bottom:4px; right:4px; width:26px; height:26px; border-radius:50%; background:linear-gradient(145deg,#6f84ff 0%,#7d5fe8 55%,#8a49d4 100%); box-shadow:0 2px 6px rgba(0,0,0,.35); border:1px solid rgba(255,255,255,.55); }
.memory-card-skeleton .card-index-badge::after { content:attr(data-index-label); position:absolute; inset:0; display:flex; align-items:center; justify-content:center; font-size:.66rem; font-weight:700; color:#fff; font-family:system-ui,sans-serif; text-shadow:0 0 3px rgba(0,0,0,.45); letter-spacing:.5px; }
[data-theme='dark'] .memory-card-skeleton .card-index-badge { background:linear-gradient(145deg,#8297ff 0%,#8f6dff 50%,#9c56ec 100%); box-shadow:0 0 0 1px rgba(255,255,255,.15),0 4px 10px -2px rgba(0,0,0,.6),0 0 8px rgba(160,120,255,.55); border:1px solid rgba(255,255,255,.65); }
[data-theme='dark'] .memory-card-skeleton .card-index-badge::after { text-shadow:0 0 4px rgba(0,0,0,.7),0 0 2px rgba(0,0,0,.4); }
.memory-card-btn[aria-pressed='true'] .memory-card-skeleton { opacity:0; transition:opacity .35s ease; }
.memory-card-btn[aria-pressed='true'] .memory-card-skeleton .sketch-frame { animation:none; }

/* === Reverso Unificado (card-back) === */
.card-back { position:absolute; inset:0; border-radius:inherit; overflow:hidden; display:flex; align-items:center; justify-content:center; font-size:.9rem; font-weight:600; -webkit-user-select:none; user-select:none; }
.card-back .cb-surface { position:absolute; inset:0; background:linear-gradient(135deg,#f3f5fb 0%,#e6e9f5 60%,#dde0ef 100%); }
[data-theme='dark'] .card-back .cb-surface { background:linear-gradient(135deg,#2d3140 0%,#353c4d 55%,#3e475a 100%); }
.card-back .cb-pattern-grid { position:absolute; inset:0; background-image:radial-gradient(circle at 1px 1px, rgba(110,120,180,.22) 0, rgba(110,120,180,0) 60%); background-size:14px 14px; mix-blend-mode:multiply; opacity:.55; }
[data-theme='dark'] .card-back .cb-pattern-grid { opacity:.35; filter:brightness(1.15); }
.card-back .cb-strokes { position:absolute; inset:0; pointer-events:none; }
.card-back .cb-strokes .stroke { position:absolute; height:32%; width:160%; left:-30%; top:10%; background:linear-gradient(90deg,rgba(130,146,255,.3),rgba(140,110,240,.05)); transform:rotate(-18deg); border-radius:40px; filter:blur(0.3px); }
.card-back .cb-strokes .s2 { top:42%; transform:rotate(-5deg); background:linear-gradient(90deg,rgba(150,120,255,.25),rgba(255,255,255,0)); }
.card-back .cb-strokes .s3 { top:68%; transform:rotate(-14deg); background:linear-gradient(90deg,rgba(110,140,255,.25),rgba(255,255,255,0)); }
[data-theme='dark'] .card-back .cb-strokes .stroke { filter:brightness(1.1) saturate(1.05); }
.card-back .cb-emblem { position:absolute; font-size:1.4rem; opacity:.18; text-shadow:0 2px 4px rgba(0,0,0,.15); }
[data-theme='dark'] .card-back .cb-emblem { opacity:.22; text-shadow:0 2px 6px rgba(0,0,0,.5); }
.card-back .card-index-badge { position:absolute; bottom:4px; right:4px; }
.card-back { animation:cardBackIn .35s cubic-bezier(.4,.9,.3,1); }
@keyframes cardBackIn { 0% { opacity:0; transform:scale(.92);} 60% { opacity:1; transform:scale(1.015);} 100% { opacity:1; transform:scale(1);} }
.card-back.vanish { opacity:0; transform:scale(.96); transition:opacity .22s ease, transform .22s ease; }
.reduce-motion .card-back, .memory-accessible.reduce-motion .card-back { animation:none !important; }
.reduce-motion .card-back.vanish, .memory-accessible.reduce-motion .card-back.vanish { transition:none !important; }
/* Modo mitades */
.memory-card-half-wrapper { position:absolute; inset:0; overflow:hidden; }
.memory-card-half-wrapper img { position:absolute; top:0; height:100%; width:200%; object-fit:cover; }
.half-left img { left:0; }
.half-right img { left:-100%; }
.memory-card-btn.split-mode { background:#f1f3f7; }
.memory-card-btn.split-mode.revealed { background:#ffffff; }
/* Animaciones */
@keyframes fuseGlow { 0%{ box-shadow:0 0 0px rgba(102,126,234,0); } 50%{ box-shadow:0 0 18px var(--mg-fuse-glow); } 100%{ box-shadow:0 0 0px rgba(102,126,234,0); } }
.fuse-anim { animation:fuseGlow 1s ease-in-out; }
.fuse-anim img { transition:opacity .6s ease; }
@keyframes assembleExpand { 0% { transform:scaleX(.5); filter:blur(2px); } 60% { transform:scaleX(1.04); filter:blur(0); } 100% { transform:scaleX(1); } }
.fuse-anim img { animation:assembleExpand .8s cubic-bezier(.65,.05,.36,1); transform-origin:center center; }
/* Panel debug opcional (se puede activar si se añade en el DOM) */
.memory-debug { margin-top:1rem; font-size:.7rem; font-family:monospace; white-space:pre-wrap; background:#fafafa; border:1px solid #ddd; padding:.5rem; border-radius:8px; max-height:160px; overflow:auto; }

/* === 👤 Creator Attribution Toast === */
.creator-attribution-toast {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  padding: 1.5rem;
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(102, 126, 234, 0.4);
  min-width: 280px;
  max-width: 340px;
  z-index: 10000;
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none;
}

.creator-attribution-toast.show {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.creator-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.creator-icon {
  font-size: 1.5rem;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.creator-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  opacity: 0.85;
  font-weight: 600;
}

.creator-info {
  margin-bottom: 1rem;
}

.creator-name {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.creator-location {
  font-size: 0.85rem;
  opacity: 0.9;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.creator-stats {
  display: flex;
  gap: 1.5rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.creator-stats .stat-item {
  flex: 1;
  text-align: center;
}

.creator-stats .stat-value {
  display: block;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.creator-stats .stat-label {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  opacity: 0.85;
}

/* Dark theme support */
[data-theme='dark'] .creator-attribution-toast {
  background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
  box-shadow: 0 10px 40px rgba(118, 75, 162, 0.5);
}