/* ============================================
   UTILITIES
   Componentes pequeños reutilizables en
   cualquier parte del proyecto:
   - Loader (spinner de carga)
   - Mensaje de error
   - Estado vacío (sin resultados)
   ============================================ */

/* --- Loader / Spinner --- */
.loader {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--gap-md);
  padding: 3rem;
  color: var(--text2);
  font-size: 0.95rem;
}

.spinner {
  width: 30px;
  height: 30px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* --- Mensaje de error --- */
.error-msg {
  background: rgba(34, 150, 85, 0.1);
  border: 1px solid rgba(34, 150, 85, 0.3);
  color: var(--accent2);
  padding: 0.8rem 1.2rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
}

/* --- Estado vacío (sin resultados) --- */
.empty-state {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--text3);
}

.empty-state .icon {
  font-size: 2.5rem;
  margin-bottom: 0.4rem;
}

.empty-state p {
  font-size: 0.95rem;
}


/* --- Error descriptivo con sugerencias (#9) --- */
.error-msg {
  background: rgba(220, 53, 69, 0.08);
  border: 1px solid rgba(220, 53, 69, 0.25);
  color: var(--text);
  padding: 1.2rem 1.4rem;
  border-radius: 12px;
  font-size: 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.error-msg .error-icon { font-size: 1.5rem; }
.error-msg .error-title { font-weight: 700; font-size: 1rem; }
.error-msg .error-desc  { color: var(--text2); font-size: 0.85rem; line-height: 1.5; }
.error-msg .error-suggestions { margin-top: 0.3rem; }
.error-msg .error-suggestions p {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text3);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}
.error-msg .error-suggestions ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.error-msg .error-suggestions li {
  font-size: 0.85rem;
  color: var(--text2);
  padding-left: 1rem;
  position: relative;
}
.error-msg .error-suggestions li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
}


/* --- Diálogo de confirmación (#5) --- */
.confirm-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  animation: fadeIn 0.15s ease;
}

.confirm-dialog {
  background: var(--dropdown-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 1.8rem 2rem;
  max-width: 340px;
  width: 90%;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3), inset 0 1px 0 var(--glass-shine);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  animation: dialogIn 0.2s ease;
}

@keyframes dialogIn {
  from { opacity: 0; transform: scale(0.92) translateY(10px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.confirm-dialog .confirm-icon  { font-size: 2rem; text-align: center; }
.confirm-dialog .confirm-title {
  font-size: 1rem;
  font-weight: 700;
  text-align: center;
  color: var(--text);
}
.confirm-dialog .confirm-desc  {
  font-size: 0.85rem;
  color: var(--text2);
  text-align: center;
  line-height: 1.5;
}
.confirm-dialog .confirm-actions {
  display: flex;
  gap: 0.6rem;
  margin-top: 0.4rem;
}
.confirm-dialog .confirm-actions button {
  flex: 1;
  padding: 0.55rem;
  border-radius: 10px;
  border: 1px solid var(--glass-border);
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: 0.5px;
}
.confirm-dialog .btn-cancel {
  background: var(--glass-bg);
  color: var(--text2);
}
.confirm-dialog .btn-cancel:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.confirm-dialog .btn-confirm {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.confirm-dialog .btn-confirm:hover { opacity: 0.85; }