.news-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  transform: translateY(-100%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.news-banner.visible {
  transform: translateY(0);
}

.news-banner-inner {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  background: rgba(30, 30, 30, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Material variants */
.news-banner.material-ultraThin .news-banner-inner {
  background: rgba(30, 30, 30, 0.7);
}

.news-banner.material-thin .news-banner-inner {
  background: rgba(30, 30, 30, 0.85);
}

.news-banner.material-regular .news-banner-inner {
  background: rgba(30, 30, 30, 0.95);
}

/* Emphasis variants */
.news-banner.emphasis-info .news-banner-inner {
  border-bottom-color: #007aff;
}

.news-banner.emphasis-warning .news-banner-inner {
  border-bottom-color: #ff9500;
}

.news-banner.emphasis-success .news-banner-inner {
  border-bottom-color: #34c759;
}

.news-banner.emphasis-critical .news-banner-inner {
  border-bottom-color: #ff3b30;
}

.news-banner-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
}

.news-banner-content {
  flex: 1;
  min-width: 0;
}

.news-banner-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: #fff;
  margin: 0 0 0.125rem 0;
  line-height: 1.3;
}

.news-banner-body {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-banner-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.news-banner-link {
  padding: 0.375rem 0.75rem;
  background: rgba(255, 255, 255, 0.15);
  border: none;
  border-radius: 6px;
  color: #fff;
  font-size: 0.75rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s;
}

.news-banner-link:hover {
  background: rgba(255, 255, 255, 0.25);
}

.news-banner-dismiss {
  padding: 0.375rem;
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.5);
  font-size: 1rem;
  cursor: pointer;
  transition: color 0.2s;
  line-height: 1;
}

.news-banner-dismiss:hover {
  color: rgba(255, 255, 255, 0.8);
}

/* Accent color support */
.news-banner-icon[data-accent="systemRed"] {
  color: #ff3b30;
}
.news-banner-icon[data-accent="systemOrange"] {
  color: #ff9500;
}
.news-banner-icon[data-accent="systemYellow"] {
  color: #ffcc00;
}
.news-banner-icon[data-accent="systemGreen"] {
  color: #34c759;
}
.news-banner-icon[data-accent="systemTeal"] {
  color: #5ac8fa;
}
.news-banner-icon[data-accent="systemBlue"] {
  color: #007aff;
}
.news-banner-icon[data-accent="systemIndigo"] {
  color: #5856d6;
}
.news-banner-icon[data-accent="systemPurple"] {
  color: #af52de;
}
.news-banner-icon[data-accent="systemPink"] {
  color: #ff2d55;
}

/* Push content down when banner is visible */
body.has-news-banner {
  padding-top: 70px;
}

/* Mobile adjustments */
@media (max-width: 640px) {
  .news-banner-inner {
    padding: 0.75rem;
    gap: 0.625rem;
  }

  .news-banner-title {
    font-size: 0.75rem;
  }

  .news-banner-body {
    font-size: 0.6875rem;
    -webkit-line-clamp: 1;
  }

  .news-banner-link {
    padding: 0.25rem 0.5rem;
    font-size: 0.6875rem;
  }
}