/*
 * Modulo aislado: loading al generar lectura desde /topic/{slug}.
 * No reutilizar ni modificar salvo solicitud explicita.
 */

.reading-loading {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(10, 18, 32, 0.52);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 1rem;
}

.reading-loading.is-visible {
  display: flex;
}

.reading-loading__spinner {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 4px solid rgba(61, 155, 143, 0.25);
  border-top-color: var(--aqua, #3d9b8f);
  animation: reading-loading-spin 0.8s linear infinite;
}

.reading-loading__panel {
  width: min(560px, 96vw);
  background: #ffffff;
  border: 1px solid rgba(26, 54, 93, 0.14);
  border-radius: 18px;
  box-shadow: 0 14px 32px rgba(10, 18, 32, 0.22);
  padding: 1.25rem 1.15rem 1rem;
  text-align: center;
}

.reading-loading__title {
  margin: 0.65rem 0 0.35rem;
  font-size: 1.22rem;
  color: var(--blue-deep, #1a365d);
}

.reading-loading__text {
  margin: 0.35rem auto 0;
  color: #425466;
  font-weight: 500;
  text-align: center;
  max-width: 42ch;
}

.reading-loading__progress {
  width: 100%;
  height: 10px;
  margin-top: 0.95rem;
  border-radius: 999px;
  background: #e8edf3;
  overflow: hidden;
}

.reading-loading__progress-bar {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #3d9b8f 0%, #5eb6ab 45%, #9ad8ff 100%);
  transition: width 0.6s ease;
}

.reading-loading__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.reading-loading__phase {
  margin: 0.55rem 0 0;
  color: #1a365d;
  font-size: 0.9rem;
  font-weight: 500;
  text-align: left;
}

.reading-loading__eta {
  margin: 0.55rem 0 0;
  color: #5c6b7a;
  font-size: 0.82rem;
  text-align: right;
}

.reading-loading__steps {
  list-style: none;
  display: grid;
  gap: 0.35rem;
  margin: 0.85rem 0 0;
  padding: 0;
  text-align: left;
}

.reading-loading__steps li {
  position: relative;
  padding-left: 1.4rem;
  color: #6b7c8c;
  font-size: 0.88rem;
}

.reading-loading__steps li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.38rem;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #c3ceda;
}

.reading-loading__steps li.is-active {
  color: #1a365d;
  font-weight: 600;
}

.reading-loading__steps li.is-active::before {
  background: #3d9b8f;
  box-shadow: 0 0 0 4px rgba(61, 155, 143, 0.2);
}

.reading-loading__hint {
  margin: 0.75rem 0 0;
  font-size: 0.8rem;
  color: #607080;
}

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