/* ==========================================================================
   Latest-content banner — a notification bar at the top of the site
   that always rotates through the newest posts across all topics. See core/banner.js.
   ========================================================================== */

.banner {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--cds-gray-100);
  color: var(--cds-white);
  border-bottom: 2px solid var(--cds-interactive);
  opacity: 0;
  transform: translateY(-6px);
  transition:
    opacity var(--cds-duration-moderate) var(--cds-ease-productive),
    transform var(--cds-duration-moderate) var(--cds-ease-productive);
}

.banner.is-shown {
  opacity: 1;
  transform: none;
}

.banner__inner {
  display: flex;
  align-items: center;
  gap: var(--cds-spacing-04);
  min-height: 2.75rem;
  padding-block: var(--cds-spacing-02);
}

.banner__label {
  display: inline-flex;
  align-items: center;
  gap: var(--cds-spacing-03);
  flex-shrink: 0;
  color: var(--cds-gray-30);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.banner__pulse {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--cds-interactive);
  animation: banner-pulse 2s ease-in-out infinite;
}

/* Rotating viewport: slides stacked, only the active one visible */
.banner__viewport {
  position: relative;
  flex: 1;
  min-width: 0;
  height: 1.5rem;
}

.banner__slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  gap: var(--cds-spacing-03);
  color: inherit;
  text-decoration: none;
  white-space: nowrap;
  opacity: 0;
  transform: translateY(0.5rem);
  transition:
    opacity var(--cds-duration-moderate) var(--cds-ease-expressive),
    transform var(--cds-duration-moderate) var(--cds-ease-expressive);
  pointer-events: none;
}

.banner__slide.is-active {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.banner__slide:hover .banner__title {
  text-decoration: underline;
}

.banner__new {
  flex-shrink: 0;
  color: var(--cds-interactive);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.banner__title {
  flex: 0 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--cds-white);
}

.banner__date {
  flex-shrink: 0;
  color: var(--cds-gray-50);
  font-variant-numeric: tabular-nums;
}

.banner__dots {
  display: flex;
  gap: var(--cds-spacing-03);
  flex-shrink: 0;
}

.banner__dot {
  width: 0.5rem;
  height: 0.5rem;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--cds-gray-50);
  background: transparent;
  cursor: pointer;
}

.banner__dot.is-active {
  background: var(--cds-interactive);
  border-color: var(--cds-interactive);
}

.banner a:hover {
  color: var(--cds-white);
}

@keyframes banner-pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.4;
    transform: scale(0.8);
  }
}

/* On phones: drop the label text and the dots, keep the headline and close */
@media (max-width: 48rem) {
  .banner__label span:last-child,
  .banner__dots {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .banner,
  .banner__slide,
  .banner__pulse {
    transition: none;
    animation: none;
  }
}