/* ============================================================
   POLISH — Mejoras visuales aditivas (no sobrescribe lógica)
   - Skeleton loaders
   - Estados vacíos refinados
   - Validación visual del input
   - Toolbar de acciones sobre el resultado (copiar / compartir)
   - Microanimaciones en botones
   ============================================================ */

/* ---------- Skeleton base ---------- */
.skeleton {
  position: relative;
  overflow: hidden;
  background: linear-gradient(90deg,
    rgba(0,0,0,.04) 0%,
    rgba(0,0,0,.08) 50%,
    rgba(0,0,0,.04) 100%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.4s ease-in-out infinite;
  border-radius: 8px;
}
@keyframes skeleton-shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Skeleton del combo de catálogo (mientras carga) */
.combo-panel .skeleton-row {
  height: 38px;
  margin: 6px 8px;
  border-radius: 8px;
}

/* Skeleton de filas de resultado */
.cr-skeleton-row {
  height: 14px;
  margin: 10px 0;
  border-radius: 6px;
}
.cr-skeleton-row.short  { width: 38%; }
.cr-skeleton-row.medium { width: 65%; }
.cr-skeleton-row.long   { width: 90%; }

/* ---------- Estado vacío refinado ---------- */
.empty-query-state .empty-icon {
  transition: transform .4s ease, color .3s ease;
}
.empty-query-state:hover .empty-icon {
  transform: translateY(-2px) scale(1.04);
}
.empty-query-state .empty-hint-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(0, 0, 0, .04);
  font-size: 12px;
  font-weight: 500;
  color: var(--c-muted, #6b7280);
  letter-spacing: .2px;
}
.empty-query-state .empty-hint-chip svg {
  width: 14px;
  height: 14px;
  stroke-width: 2;
}

/* ---------- Validación visual del input ---------- */
.form-row .input {
  transition: border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
}
.form-row .input.is-valid {
  border-color: #16a34a !important;
  box-shadow: 0 0 0 3px rgba(22, 163, 74, .12);
}
.form-row .input.is-invalid {
  border-color: #dc2626 !important;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, .10);
}
.form-row { position: relative; }
.input-feedback {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  display: none;
  pointer-events: none;
  width: 18px;
  height: 18px;
  z-index: 2;
}
.input-feedback svg { width: 100%; height: 100%; }
.input-feedback.show-valid,
.input-feedback.show-invalid { display: block; }
.input-feedback.show-valid   { color: #16a34a; }
.input-feedback.show-invalid { color: #dc2626; }
@media (max-width: 640px) {
  .input-feedback {
    top: 22px;
    right: 14px;
    transform: none;
  }
}

/* ---------- Toolbar de acciones del resultado ---------- */
.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 0 4px;
  border-top: 1px dashed var(--c-border, rgba(0,0,0,.08));
  margin-top: 14px;
  animation: result-actions-in .35s ease both;
}
@keyframes result-actions-in {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}
.result-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--c-border, rgba(0,0,0,.10));
  background: #fff;
  font-size: 13px;
  font-weight: 500;
  color: var(--c-text, #1f2937);
  cursor: pointer;
  transition: transform .15s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
  user-select: none;
}
.result-action-btn:hover {
  background: var(--c-surface-2, #f8fafc);
  border-color: rgba(0,0,0,.18);
  transform: translateY(-1px);
  box-shadow: 0 4px 10px -6px rgba(0,0,0,.18);
}
.result-action-btn:active { transform: translateY(0); }
.result-action-btn svg { width: 15px; height: 15px; stroke-width: 1.9; }
.result-action-btn.is-success {
  border-color: #16a34a;
  color: #16a34a;
  background: rgba(22, 163, 74, .06);
}
.result-action-btn.wa { color: #128C7E; border-color: rgba(18,140,126,.35); }
.result-action-btn.wa:hover { background: rgba(18,140,126,.07); }

/* ---------- Microanimaciones en botones primarios ---------- */
.btn.btn-primary {
  transition: transform .12s ease, box-shadow .2s ease, filter .2s ease;
}
.btn.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  filter: brightness(1.04);
}
.btn.btn-primary:active:not(:disabled) {
  transform: translateY(0);
  filter: brightness(.98);
}
.btn.btn-primary:disabled {
  cursor: not-allowed;
  opacity: .65;
}

/* Combo trigger sutil hover */
.combo-trigger {
  transition: border-color .2s ease, box-shadow .2s ease;
}
.combo-trigger:hover {
  border-color: rgba(0,0,0,.18);
}

/* ---------- Modo oscuro: ajustes de skeleton y toolbar ---------- */
@media (prefers-color-scheme: dark) {
  .skeleton {
    background: linear-gradient(90deg,
      rgba(255,255,255,.05) 0%,
      rgba(255,255,255,.10) 50%,
      rgba(255,255,255,.05) 100%);
    background-size: 200% 100%;
  }
  .empty-query-state .empty-hint-chip {
    background: rgba(255,255,255,.06);
    color: rgba(255,255,255,.7);
  }
  .result-action-btn {
    background: rgba(255,255,255,.04);
    color: rgba(255,255,255,.92);
    border-color: rgba(255,255,255,.12);
  }
  .result-action-btn:hover {
    background: rgba(255,255,255,.08);
    border-color: rgba(255,255,255,.22);
  }
}

/* Body con tema dark explícito (si la app usa data-theme="dark") */
[data-theme="dark"] .skeleton {
  background: linear-gradient(90deg,
    rgba(255,255,255,.05) 0%,
    rgba(255,255,255,.10) 50%,
    rgba(255,255,255,.05) 100%);
  background-size: 200% 100%;
}
[data-theme="dark"] .empty-query-state .empty-hint-chip {
  background: rgba(255,255,255,.06);
  color: rgba(255,255,255,.7);
}
[data-theme="dark"] .result-action-btn {
  background: rgba(255,255,255,.04);
  color: rgba(255,255,255,.92);
  border-color: rgba(255,255,255,.12);
}
[data-theme="dark"] .result-action-btn:hover {
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.22);
}