/* =====================================================
   PERIODICO.ONE — Reader Modal
   ===================================================== */

#reader-modal {
  position: fixed;
  inset: 0;
  z-index: 500;
  display: flex;
  align-items: stretch;
  justify-content: flex-end;
}

.reader-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  cursor: pointer;
}

.reader-panel {
  position: relative;
  width: min(720px, 92vw);
  height: 100%;
  background: var(--bg-surface);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  padding: 1.75rem 2rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  animation: slide-in 0.25s ease;
}

@keyframes slide-in {
  from {
    transform: translateX(40px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.reader-close {
  align-self: flex-start;
  padding: 0.5rem 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.8125rem;
  font-weight: 500;
  flex-shrink: 0;
  transition: color var(--transition), background var(--transition);
}

.reader-close:hover {
  color: var(--text-primary);
  background: var(--border);
}

.reader-text {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-secondary);
  flex: 1;
}

.reader-source-link {
  display: inline-flex;
  align-items: center;
  margin-top: 2rem;
  padding: 0.75rem 1.5rem;
  background: var(--text-accent);
  color: #fff;
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.875rem;
  transition: opacity var(--transition);
  align-self: flex-start;
}

.reader-source-link:hover {
  opacity: 0.88;
}

.reader-error {
  color: var(--text-secondary);
  text-align: center;
  padding: 3rem 1rem;
  font-style: italic;
}

/* Mobile: bottom sheet style */
@media (max-width: 640px) {
  #reader-modal {
    align-items: flex-end;
    justify-content: stretch;
  }

  .reader-panel {
    width: 100%;
    height: 90vh;
    border-left: none;
    border-top: 1px solid var(--border);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: 1.25rem 1.25rem 2.5rem;
    animation: slide-up 0.25s ease;
  }

  @keyframes slide-up {
    from {
      transform: translateY(30px);
      opacity: 0;
    }
    to {
      transform: translateY(0);
      opacity: 1;
    }
  }
}