/* Image Description Review (altbridge) review tool styles.
   Scoped to the review session page.
   Inherits nothing from style-v3.css; standalone stylesheet.
   Palette: v3 chrome (charcoal + royal blue). Verdict colours functional (green/yellow/red).
*/

:root {
  --text: #0b0c0c;
  --text-muted: #4b5563;
  --text-inverse: #ffffff;
  --bg: #ffffff;
  --bg-alt: #f3f4f6;
  --bg-hero: #1f2937;
  --bg-footer: #111827;
  --bg-card: #ffffff;
  --link: #1e40af;
  --link-visited: #6b21a8;
  --link-hover: #172554;
  --accent: #1e40af;
  --border: #d1d5db;
  --card-border: #9ca3af;
  --focus-bg: #fde68a;
  --focus-outline: #78350f;
  --focus-text: #0b0c0c;

  /* Verdict colours, functional, announced as text too */
  --match-bg: #d4edda;
  --match-text: #155724;
  --match-border: #28a745;
  --ambig-bg: #fff3cd;
  --ambig-text: #856404;
  --ambig-border: #b07a00;
  --mism-bg: #f8d7da;
  --mism-text: #721c24;
  --mism-border: #a21c2a;
}

* { box-sizing: border-box; }
html { font-size: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg-alt);
}

/* ===== SKIP LINK ===== */
.skip-link {
  position: absolute;
  left: -1000px;
  top: 0;
  background: var(--focus-bg);
  color: var(--focus-text);
  padding: 0.75rem 1.25rem;
  text-decoration: underline;
  font-weight: 700;
  z-index: 1000;
}
.skip-link:focus { left: 0; outline: 3px solid var(--focus-outline); }

/* ===== LINKS ===== */
a { color: var(--link); text-decoration: underline; }
a:visited { color: var(--link-visited); }
a:hover { color: var(--link-hover); }
a:focus {
  outline: 3px solid var(--focus-outline);
  outline-offset: 2px;
  background: var(--focus-bg);
  color: var(--focus-text);
  text-decoration: none;
}

/* ===== PRIVATE-LINK NOTICE BANNER ===== */
.notice-banner {
  background: #fef3c7;
  border-bottom: 3px solid #b07a00;
  color: #78350f;
  padding: 0.875rem 1.25rem;
  font-size: 0.9375rem;
}
.notice-banner strong { color: #78350f; }
.notice-banner a { color: #78350f; }

/* ===== TOP BAR ===== */
header.tool-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--bg-hero);
  color: var(--text-inverse);
  padding: 0.875rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  border-bottom: 3px solid var(--accent);
}
header.tool-header .title h1 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.2;
}
header.tool-header .title h1 a {
  color: var(--text-inverse);
  text-decoration: none;
}
header.tool-header .title h1 a:hover { text-decoration: underline; }
header.tool-header .summary-line {
  font-size: 0.875rem;
  opacity: 0.92;
  margin: 0.125rem 0 0;
}
header.tool-header .controls {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
  margin-left: auto;
}
header.tool-header label {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.875rem;
  color: var(--text-inverse);
}
header.tool-header select,
header.tool-header input[type="text"] {
  padding: 0.375rem 0.5rem;
  font-size: 0.9375rem;
  border: 1px solid var(--text-inverse);
  border-radius: 0.1875rem;
  background: var(--bg);
  color: var(--text);
}
header.tool-header button {
  padding: 0.5rem 0.875rem;
  font-size: 0.9375rem;
  font-weight: 700;
  background: var(--bg);
  color: var(--bg-hero);
  border: 2px solid var(--bg);
  border-radius: 0.1875rem;
  cursor: pointer;
}
header.tool-header button:hover {
  background: var(--focus-bg);
  color: var(--focus-text);
  border-color: var(--focus-outline);
}
header.tool-header button:focus {
  outline: 3px solid var(--focus-bg);
  outline-offset: 2px;
}

/* ===== SECONDARY NAV ===== */
nav.doc-nav {
  position: sticky;
  top: 3.75rem;
  z-index: 19;
  background: var(--bg);
  padding: 0.625rem 1.25rem;
  display: flex;
  gap: 0.875rem;
  align-items: center;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border);
}
nav.doc-nav select {
  padding: 0.375rem 0.5rem;
  flex: 1;
  max-width: 40rem;
  font-size: 0.9375rem;
  border: 1px solid var(--card-border);
  border-radius: 0.1875rem;
}
nav.doc-nav button {
  padding: 0.375rem 0.75rem;
  font-size: 0.9375rem;
  font-weight: 600;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--card-border);
  border-radius: 0.1875rem;
  cursor: pointer;
}
nav.doc-nav button:hover { background: var(--bg-alt); border-color: var(--accent); color: var(--accent); }
nav.doc-nav button:focus {
  outline: 3px solid var(--focus-outline);
  outline-offset: 2px;
  background: var(--focus-bg);
  color: var(--focus-text);
}
nav.doc-nav .counter {
  margin-left: auto;
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ===== WELCOME BLOCK ===== */
.welcome-wrap {
  max-width: 88rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 0;
}
.welcome-block {
  background: var(--bg);
  border: 2px solid var(--card-border);
  border-left: 6px solid var(--accent);
  padding: 1.25rem 1.5rem 1rem;
  border-radius: 0.25rem;
}
.welcome-block h2 {
  font-size: 1.25rem;
  margin: 0 0 0.75rem;
  line-height: 1.25;
}
.welcome-block p {
  max-width: 60rem;
  margin: 0 0 0.625rem;
  font-size: 1rem;
}
.welcome-block p:last-child { margin-bottom: 0; }
.welcome-block strong { color: var(--text); }

/* ===== MAIN ===== */
main.review-main {
  padding: 1.5rem 1.25rem 4rem;
  max-width: 88rem;
  margin: 0 auto;
}

.doc-section { margin-bottom: 2rem; }
.doc-section h2 {
  font-size: 1.375rem;
  margin: 0 0 0.5rem;
  color: var(--text);
  word-break: break-word;
}
.doc-meta {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.chip {
  display: inline-block;
  padding: 0.1875rem 0.625rem;
  border-radius: 0.75rem;
  margin-right: 0.375rem;
  background: #e5e7eb;
  color: var(--text);
  font-size: 0.8125rem;
  font-weight: 600;
}
.chip.match { background: var(--match-bg); color: var(--match-text); }
.chip.ambiguous { background: var(--ambig-bg); color: var(--ambig-text); }
.chip.mismatch { background: var(--mism-bg); color: var(--mism-text); }

/* ===== HOW-TO PANEL ===== */
.how-to {
  background: var(--bg);
  border: 2px solid var(--card-border);
  border-left: 6px solid var(--accent);
  padding: 1rem 1.25rem;
  margin: 0 0 1.5rem;
  border-radius: 0.25rem;
  font-size: 0.9375rem;
}
.how-to h3 { margin: 0 0 0.5rem; font-size: 1rem; }
.how-to ul { margin: 0.25rem 0 0.75rem 1.25rem; padding: 0; }
.how-to li { margin: 0.25rem 0; }
.how-to p { margin: 0 0 0.5rem; max-width: none; }
.how-to p:last-child { margin-bottom: 0; }

/* ===== PAGE GROUP ===== */
.page-group {
  margin: 0 0 1.75rem;
  border-left: 3px solid var(--card-border);
  padding-left: 1rem;
}
.page-group h3 {
  font-size: 1.125rem;
  margin: 0 0 0.5rem;
  color: var(--text);
}
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 20rem;
  gap: 1.25rem;
  align-items: start;
}
.page-figures { min-width: 0; }
.page-thumb-wrap {
  position: sticky;
  top: 8rem;
}
.page-thumb {
  width: 100%;
  max-width: 20rem;
  height: auto;
  border: 2px solid var(--card-border);
  border-radius: 0.25rem;
  background: var(--bg);
  display: block;
}
.page-thumb-caption {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin: 0.375rem 0 0;
}
@media (max-width: 70rem) {
  .page-layout { grid-template-columns: 1fr; }
  .page-thumb-wrap { position: static; max-width: 28rem; }
}

/* ===== FIGURE ROW ===== */
.figure-row {
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr) 18rem;
  gap: 0.75rem;
  padding: 0.875rem;
  margin: 0.5rem 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0.25rem;
  align-items: start;
}
.figure-row.verdict-match { border-left: 4px solid var(--match-border); }
.figure-row.verdict-mismatch { border-left: 4px solid var(--mism-border); background: #fff5f5; }
.figure-row.verdict-ambiguous { border-left: 4px solid var(--ambig-border); background: #fffdf0; }
.figure-row.dirty { box-shadow: inset 0 0 0 2px var(--accent); }

.figure-row .fig-id {
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--text);
}

.figure-row .fig-body h4 {
  font-size: 1rem;
  margin: 0 0 0.375rem;
  font-weight: 600;
  color: var(--text);
}

.verdict-badge {
  display: inline-block;
  padding: 0.1875rem 0.625rem;
  border-radius: 0.1875rem;
  font-size: 0.8125rem;
  font-weight: 700;
  margin-right: 0.375rem;
  letter-spacing: 0.025em;
}
.verdict-badge.match { background: var(--match-bg); color: var(--match-text); }
.verdict-badge.ambiguous { background: var(--ambig-bg); color: var(--ambig-text); }
.verdict-badge.mismatch { background: var(--mism-bg); color: var(--mism-text); }
.verdict-badge.alt-missing { background: var(--mism-bg); color: var(--mism-text); }

.confidence-chip {
  display: inline-block;
  padding: 0.125rem 0.375rem;
  border-radius: 0.125rem;
  background: #e5e7eb;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  margin-right: 0.375rem;
}

.figure-image {
  margin: 0.5rem 0;
  padding: 0.5rem;
  border: 1px dashed var(--card-border);
  border-radius: 0.25rem;
  background: var(--bg);
  display: inline-block;
}
.figure-image svg,
.figure-image img {
  display: block;
  max-width: 16rem;
  max-height: 10rem;
  height: auto;
  width: auto;
}

.alt-block {
  background: #f9fafb;
  border-left: 3px solid var(--accent);
  padding: 0.5rem 0.75rem;
  margin: 0.5rem 0;
  border-radius: 0.125rem;
}
.alt-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 700;
  margin-bottom: 0.1875rem;
}
.alt-text { font-size: 0.9375rem; color: var(--text); }
.alt-text.missing { color: var(--mism-text); font-weight: 700; }

.fig-context {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin: 0 0 0.5rem;
  line-height: 1.45;
}
.fig-context div { margin: 0; }
.fig-context strong {
  color: var(--text);
  font-weight: 700;
}

.reasoning {
  font-size: 0.875rem;
  color: var(--text);
  margin: 0.5rem 0;
}
.reasoning-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 700;
  margin-bottom: 0.1875rem;
}

.explainer-block {
  margin: 0 auto 1rem;
  max-width: 64rem;
  padding: 0.9rem 1.1rem;
  background: var(--bg-alt);
  border-left: 4px solid var(--accent);
  border-radius: 0.1875rem;
}
.explainer-block h2 {
  font-size: 1.125rem;
  margin: 0 0 0.35rem;
}
.explainer-block p {
  font-size: 0.9375rem;
  margin: 0 0 0.35rem;
}
.explainer-block p:last-child { margin-bottom: 0; }

/* ===== AI-SUGGESTED ALT BLOCK (authoring mode) ===== */
.alt-block.ai-suggested {
  border-left-color: #7c3aed;
  background: #f5f3ff;
}
.alt-block.ai-suggested .alt-label {
  color: #5b21b6;
}

/* ===== REMEDIATOR NOTE CALLOUT ===== */
.remediator-note {
  background: #fef9c3;
  border-left: 4px solid #ca8a04;
  padding: 0.625rem 0.875rem;
  margin: 0.5rem 0;
  border-radius: 0.1875rem;
}
.remediator-note-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #713f12;
  font-weight: 700;
  margin-bottom: 0.1875rem;
}
.remediator-note-text {
  display: block;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: #713f12;
}

/* ===== FEEDBACK PANEL ===== */
.fig-feedback {
  border-left: 2px solid var(--accent);
  padding-left: 0.75rem;
}
.decision-fieldset {
  border: 1px solid var(--card-border);
  border-radius: 0.1875rem;
  padding: 0.5rem 0.625rem 0.75rem;
  margin: 0 0 0.75rem;
}
.decision-fieldset legend {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text);
  padding: 0 0.25rem;
}
.decision-opt {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.25rem 0;
  font-size: 0.875rem;
  cursor: pointer;
}
.decision-opt input[type="radio"] {
  margin: 0.25rem 0 0;
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
}
.decision-opt input[type="radio"]:focus {
  outline: 3px solid var(--focus-outline);
  outline-offset: 2px;
}
.decision-opt span { flex: 1; }
.read-aloud-btn {
  display: inline-flex;
  align-items: center;
  margin: 0.5rem 0 0;
  padding: 0.3rem 0.65rem;
  font-size: 0.875rem;
  font-family: inherit;
  border: 1px solid var(--accent);
  background: var(--bg);
  color: var(--accent);
  cursor: pointer;
  border-radius: 0.1875rem;
}
.read-aloud-btn:hover { background: var(--bg-alt); }
.read-aloud-btn:focus-visible {
  outline: 3px solid var(--focus-outline);
  outline-offset: 1px;
}
.read-aloud-btn[data-speaking="true"] {
  background: var(--accent);
  color: var(--bg);
}
.read-aloud-btn[data-speaking="true"]:hover { background: #1e3a8a; }
.read-aloud-hint {
  font-size: 0.9rem;
  color: var(--text);
  margin-top: 0.75rem;
}

.final-alt-text {
  width: 100%;
  margin: 0.375rem 0 0.25rem;
  padding: 0.5rem;
  font-size: 0.9375rem;
  font-family: inherit;
  border: 1px solid var(--card-border);
  border-radius: 0.1875rem;
  color: var(--text);
  background: var(--bg);
  min-height: 4rem;
  resize: vertical;
}
.final-alt-text:focus {
  outline: 3px solid var(--focus-outline);
  outline-offset: 1px;
  border-color: var(--accent);
}
.authoring-note-text {
  width: 100%;
  padding: 0.375rem 0.5rem;
  font-size: 0.9375rem;
  font-family: inherit;
  border: 1px solid var(--card-border);
  border-radius: 0.1875rem;
  color: var(--text);
  background: var(--bg);
  min-height: 2.75rem;
  resize: vertical;
}
.authoring-note-text:focus {
  outline: 3px solid var(--focus-outline);
  outline-offset: 1px;
  border-color: var(--accent);
}

/* Screen-reader only */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* Authoring-mode decision visual accent */
.figure-row.authoring-mode[data-decision="approved"] { border-left: 4px solid var(--match-border); }
.figure-row.authoring-mode[data-decision="rewritten"] { border-left: 4px solid #7c3aed; }
.figure-row.authoring-mode[data-decision="skipped"] { border-left: 4px solid var(--text-muted); }

.fig-feedback label {
  display: block;
  font-size: 0.8125rem;
  color: var(--text);
  font-weight: 700;
  margin: 0.25rem 0 0.1875rem;
}
.fig-feedback select,
.fig-feedback textarea {
  width: 100%;
  padding: 0.375rem 0.5rem;
  font-size: 0.9375rem;
  font-family: inherit;
  border: 1px solid var(--card-border);
  border-radius: 0.1875rem;
  color: var(--text);
  background: var(--bg);
}
.fig-feedback select:focus,
.fig-feedback textarea:focus {
  outline: 3px solid var(--focus-outline);
  outline-offset: 1px;
  border-color: var(--accent);
}
.fig-feedback textarea { min-height: 3.5rem; resize: vertical; }

/* ===== STATUS BAR ===== */
#status-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--text);
  color: var(--text-inverse);
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
  z-index: 100;
  display: none;
}
#status-bar.show { display: block; }

/* ===== RESPONSIVE ===== */
@media (max-width: 52rem) {
  header.tool-header { flex-direction: column; align-items: flex-start; }
  header.tool-header .controls { margin-left: 0; width: 100%; }
  nav.doc-nav { top: 0; position: relative; }
  .figure-row { grid-template-columns: 1fr; }
  .figure-row .fig-id { margin-bottom: -0.25rem; }
}

/* ===== FORCED COLOURS / MOTION ===== */
@media (forced-colors: active) {
  .figure-row { border: 2px solid ButtonText; }
  .verdict-badge { border: 1px solid ButtonText; }
  .alt-block { border-left: 3px solid ButtonText; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}