/* ============================================================
   UX STATES — Empty, Loading (skeleton), Error
   ============================================================
   Componentes utility para todas las secciones del portal.
   Uso desde JS:
     UX.empty(rootEl, { emoji, titulo, mensaje, cta, action })
     UX.skeleton(rootEl, type)  // type: 'card-list', 'table', 'kpi', 'grid'
     UX.error(rootEl, err, retryFn)
   ============================================================ */

/* ===== EMPTY STATES ===== */
.ux-empty {
  background: var(--bg-surface, #fff);
  border: 2px dashed var(--border-default, #E2E8F0);
  border-radius: 16px;
  padding: 48px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  position: relative;
  overflow: hidden;
}
.ux-empty::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, var(--accent-gold-veil, rgba(201,160,99,0.06)), transparent 60%);
  pointer-events: none;
}
.ux-empty-emoji {
  font-size: 72px;
  line-height: 1;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.1));
  animation: uxEmptyFloat 3s ease-in-out infinite;
}
@keyframes uxEmptyFloat {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50%      { transform: translateY(-6px) rotate(2deg); }
}
.ux-empty-titulo {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--accent-primary, #1B3A2E);
  margin: 0;
  line-height: 1.25;
}
.ux-empty-mensaje {
  font-size: 14px;
  color: var(--text-muted, #6B6B6B);
  max-width: 360px;
  line-height: 1.5;
  margin: 0;
}
.ux-empty-cta {
  background: linear-gradient(135deg, var(--accent-primary, #1B3A2E), var(--accent-primary-hover, #2D4A3A));
  color: #fff;
  border: none;
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  margin-top: 6px;
  box-shadow: 0 4px 12px rgba(27,58,46,0.25);
  transition: transform 0.15s, box-shadow 0.15s;
}
.ux-empty-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(27,58,46,0.35);
}
.ux-empty-secondary {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-default);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
}

/* ===== SKELETON SCREENS (animated placeholders) ===== */
.ux-skeleton { padding: 4px; }
.ux-skel-block {
  background: linear-gradient(
    90deg,
    var(--bg-subtle, #F0EDE5) 25%,
    var(--bg-warm, #F5F0E6) 50%,
    var(--bg-subtle, #F0EDE5) 75%
  );
  background-size: 200% 100%;
  animation: uxSkelShimmer 1.4s linear infinite;
  border-radius: 8px;
}
@keyframes uxSkelShimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
.ux-skel-line { height: 14px; margin: 8px 0; border-radius: 4px; }
.ux-skel-line.short { width: 40%; }
.ux-skel-line.medium { width: 70%; }
.ux-skel-line.long { width: 100%; }
.ux-skel-circle { width: 48px; height: 48px; border-radius: 50%; flex-shrink: 0; }
.ux-skel-row {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 14px;
  background: #fff;
  border-radius: 10px;
  border: 1px solid var(--border-default, #E2E8F0);
  margin-bottom: 8px;
}
.ux-skel-card {
  background: #fff;
  padding: 18px;
  border-radius: 12px;
  border: 1px solid var(--border-default, #E2E8F0);
  margin-bottom: 12px;
}
.ux-skel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}
.ux-skel-kpi {
  background: #fff;
  border-radius: 12px;
  padding: 18px;
  border: 1px solid var(--border-default, #E2E8F0);
}

/* ===== ERROR STATES ===== */
.ux-error {
  background: linear-gradient(135deg, #FEF2F2 0%, #FFF 100%);
  border: 2px solid #FECACA;
  border-radius: 14px;
  padding: 32px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.ux-error-emoji { font-size: 48px; line-height: 1; }
.ux-error-titulo {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 18px;
  font-weight: 700;
  color: #991B1B;
  margin: 0;
}
.ux-error-mensaje {
  font-size: 13px;
  color: #7F1D1D;
  max-width: 360px;
  line-height: 1.5;
  margin: 0;
}
.ux-error-detalle {
  font-family: 'SF Mono', Monaco, monospace;
  font-size: 11px;
  color: #991B1B;
  background: rgba(239,68,68,0.08);
  padding: 8px 12px;
  border-radius: 6px;
  max-width: 100%;
  overflow-x: auto;
  text-align: left;
}
.ux-error-retry {
  background: linear-gradient(135deg, #EF4444, #DC2626);
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  box-shadow: 0 4px 10px rgba(239,68,68,0.25);
}
.ux-error-retry:hover { background: linear-gradient(135deg, #DC2626, #B91C1C); }

/* ===== Mobile tweaks ===== */
@media (max-width: 640px) {
  .ux-empty { padding: 32px 16px; }
  .ux-empty-emoji { font-size: 56px; }
  .ux-empty-titulo { font-size: 18px; }
  .ux-empty-mensaje { font-size: 13px; }
  .ux-error { padding: 24px 16px; }
}