.top-island {
  position: sticky;
  z-index: 100;
}

.top-island-inner,
.brand,
.nav-links,
.input-actions,
.action-group,
.result-heading,
.result-heading-actions,
.loading-progress-top,
.score-meter-axis,
.result-title-row,
.result-facts > div,
.fact-label-group,
.fact-tooltip-container,
.cancel-actions,
.signal-tooltip,
.metric-row {
  display: flex;
  align-items: center;
}

.top-island-inner,
.result-heading,
.loading-progress-top,
.score-meter-axis,
.result-title-row,
.result-facts > div,
.metric-row {
  justify-content: space-between;
}

.brand,
.nav-links,
.action-group,
.result-heading-actions,
.cancel-actions,
.signal-tooltip,
.fact-label-group,
.fact-tooltip-container {
  gap: 8px;
}

.brand,
.nav-links,
.action-group,
.result-heading-actions,
.cancel-actions {
  flex-wrap: wrap;
}

.brand {
  min-width: 0;
}

.locale-control {
  position: relative;
}

.locale-control > span {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  margin: -1px;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.locale-control select {
  cursor: pointer;
  appearance: none;
}

.workspace-card {
  position: relative;
}

.workspace-card,
.result-panel,
.textarea-shell,
.result-facts,
.text-highlights {
  overflow: hidden;
}

.workspace-head {
  text-align: center;
}

.model-status-control {
  position: absolute;
}

.model-status-indicator {
  display: block;
}

.model-status-tooltip {
  position: absolute;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
}

.model-status-control:hover .model-status-tooltip,
.model-status-control:focus-within .model-status-tooltip {
  opacity: 1;
  visibility: visible;
}

.model-status-tooltip strong,
.model-status-tooltip span {
  display: block;
}

.textarea-shell {
  transition: border-color 170ms ease, box-shadow 170ms ease, background 170ms ease;
}

.textarea-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.input-hint {
  opacity: 1;
  visibility: visible;
  filter: blur(0);
  transform: translateY(0) scale(1);
  transform-origin: left center;
  transition:
    opacity 680ms ease,
    transform 680ms cubic-bezier(0.22, 1, 0.36, 1),
    filter 680ms ease,
    visibility 0s linear 0s;
}

.input-hint.is-satisfied {
  opacity: 0;
  visibility: hidden;
  filter: blur(2px);
  transform: translateY(-3px) scale(0.985);
  transition-delay: 0s, 0s, 0s, 680ms;
}

.textarea-foot > span:last-child {
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.char-progress,
.loading-progress-track,
.score-meter-track {
  display: block;
  width: 100%;
  border: 0;
  appearance: none;
  -webkit-appearance: none;
}

.input-actions {
  justify-content: flex-end;
  gap: 16px;
}

.action-group {
  justify-content: flex-end;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: color 150ms ease, background 150ms ease, border-color 150ms ease, box-shadow 150ms ease, transform 150ms ease;
}

.button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.button:active:not(:disabled) {
  transform: translateY(0);
}

.result-panel.is-visible {
  animation: result-reveal 180ms ease-out both;
}

.result-heading {
  gap: 16px;
}

.result-heading-actions {
  flex: 0 0 auto;
}

.result-loading {
  display: grid;
  align-items: center;
}

.loading-grid,
.details-inner {
  display: grid;
}

.loading-grid {
  justify-items: center;
}

.loading-progress-top {
  align-items: baseline;
}

.loading-progress-track,
.score-meter-track,
.score-row-bar {
  overflow: hidden;
}

.cancel-actions.is-hidden {
  display: none;
}

.result-grid {
  display: grid;
}

.score-meter-top {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
}

.result-title-row {
  align-items: flex-start;
}

.result-facts > div:last-child {
  border-bottom: 0;
}

.fact-tooltip-container {
  position: relative;
  cursor: help;
}

.fact-tooltip {
  position: absolute;
  bottom: 100%;
  left: 50%;
  z-index: 1000;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%);
}

.fact-tooltip::after {
  position: absolute;
  top: 100%;
  left: 50%;
  content: "";
  transform: translateX(-50%);
}

.fact-tooltip-container:hover .fact-tooltip,
.fact-tooltip-container:focus-within .fact-tooltip {
  opacity: 1;
  visibility: visible;
}

.signal-analysis {
  border-top-style: solid;
}

.analysis-main {
  position: relative;
}

.text-highlights [role="button"] {
  display: inline;
  cursor: default;
  transition: background 160ms ease;
}

.signal-tooltip {
  position: fixed;
  right: max(18px, calc((100vw - 1100px) / 2 + 18px));
  bottom: max(18px, env(safe-area-inset-bottom));
  z-index: 120;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px) scale(0.98);
  transform-origin: 100% 100%;
}

.signal-tooltip.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

@media (max-width: 760px) {
  .signal-tooltip {
    right: 14px;
    bottom: max(14px, env(safe-area-inset-bottom));
    max-width: calc(100vw - 28px);
    transform-origin: 100% 100%;
  }
}

.metrics-grid {
  display: grid;
}

.metric-row {
  align-items: baseline;
}

.details-block summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  list-style: none;
}

.details-block summary::-webkit-details-marker {
  display: none;
}

.details-block summary span:last-child {
  transition: transform 160ms ease;
}

.details-block[open] summary span:last-child {
  transform: rotate(45deg);
}

.details-inner pre {
  overflow: auto;
}

@media (prefers-reduced-motion: reduce) {
  .input-hint,
  .input-hint.is-satisfied {
    transition: none;
  }
}

@media (max-width: 760px) {
  .result-grid,
  .metrics-grid {
    grid-template-columns: 1fr;
  }

  .score-block {
    border-right: 0;
    border-bottom-style: solid;
  }

  .score-meter-top {
    align-items: baseline;
    flex-direction: row;
    justify-content: space-between;
  }

  .result-heading {
    flex-wrap: wrap;
  }
}

@media (max-width: 520px) {
  .textarea-foot {
    display: grid;
    gap: 6px;
  }

  .input-actions {
    display: flex;
    justify-content: flex-end;
  }

  .action-group-primary {
    width: 100%;
    justify-content: flex-end;
  }

  .action-group-primary .button {
    width: auto;
  }

  .button-primary {
    min-width: 132px;
  }

  .result-heading,
  .result-title-row {
    display: grid;
    align-items: start;
  }
}