/* TopicRadar 视觉润色:加载态、空态、焦点和微交互。 */
html {
  scroll-behavior: smooth;
}

body {
  font-family: "Geist", "Satoshi", "Aptos", ui-sans-serif, -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 24% 16%, rgba(47, 111, 87, 0.08), transparent 18rem),
    radial-gradient(circle at 82% 4%, rgba(151, 119, 76, 0.08), transparent 22rem);
}

:focus-visible {
  outline: 2px solid rgba(47, 111, 87, 0.52);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  left: 18px;
  top: 14px;
  z-index: 2;
  transform: translateY(-160%);
  border-radius: 999px;
  background: #172019;
  color: #fff;
  padding: 9px 13px;
  text-decoration: none;
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.summary-panel,
.card,
.side-card,
.settings-card,
.status-card {
  backdrop-filter: saturate(1.08) blur(8px);
}

.card {
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.card:hover,
.card:focus-within {
  border-color: rgba(47, 111, 87, 0.24);
  box-shadow: 0 22px 58px -40px rgba(30, 48, 36, 0.62);
  transform: translateY(-1px);
}

.thumb-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 48%, rgba(12, 15, 13, 0.22));
  opacity: 0.74;
  pointer-events: none;
}

.duration {
  z-index: 1;
}

.global-feedback-card {
  order: -1;
}

.global-feedback-card textarea {
  transition: border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.global-feedback-card textarea:focus {
  box-shadow: 0 10px 34px -28px rgba(47, 111, 87, 0.7);
}

.metric strong,
.metric span,
.media-stats,
.duration,
.card-id,
.pill {
  font-variant-numeric: tabular-nums;
}

.metric-loading strong,
.metric-loading span,
.skeleton {
  display: block;
  overflow: hidden;
  position: relative;
  background: linear-gradient(90deg, #ecebe4, #f7f6ef, #ecebe4);
  background-size: 220% 100%;
  animation: shimmer 1.35s ease-in-out infinite;
}

.metric-loading strong {
  width: 54px;
  height: 28px;
  border-radius: 10px;
}

.metric-loading span {
  width: 86px;
  height: 13px;
  border-radius: 8px;
}

.loading-card {
  grid-template-columns: minmax(280px, 38%) minmax(0, 1fr);
  padding: 16px;
}

.loading-media {
  aspect-ratio: 16 / 9;
  border-radius: 18px;
}

.loading-body {
  display: grid;
  align-content: center;
  gap: 14px;
  padding: 10px 8px;
}

.skeleton-pill {
  width: 92px;
  height: 27px;
  border-radius: 999px;
}

.skeleton-line {
  width: 78%;
  height: 17px;
  border-radius: 999px;
}

.skeleton-line.wide {
  width: 92%;
  height: 24px;
}

.skeleton-line.short {
  width: 52%;
}

.media-hint {
  position: absolute;
  left: 10px;
  bottom: 10px;
  transform: translateY(4px);
  border-radius: 999px;
  background: rgba(255, 255, 252, 0.88);
  color: #27342d;
  padding: 4px 8px;
  font-size: 11px;
  font-weight: 750;
  opacity: 0;
  z-index: 1;
  transition: opacity 180ms ease, transform 180ms ease;
}

.media-link:hover .media-hint,
.media-link:focus-visible .media-hint {
  opacity: 1;
  transform: translateY(0);
}

.card-id {
  color: var(--muted);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.04em;
}

.empty-state {
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    radial-gradient(circle at 100% 0, rgba(47, 111, 87, 0.1), transparent 16rem),
    rgba(255, 255, 252, 0.88);
  padding: clamp(28px, 6vw, 62px);
  box-shadow: var(--shadow);
}

.feedback-button:disabled {
  cursor: wait;
  opacity: 0.58;
}

@keyframes shimmer {
  from {
    background-position: 180% 0;
  }
  to {
    background-position: -80% 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}