:root {
  --companion-ink: #1e252b;
  --companion-muted: #66717b;
  --companion-paper: #fbfaf7;
  --companion-panel: #ffffff;
  --companion-line: #d8ddd8;
  --companion-accent: #2f6f63;
  --companion-accent-dark: #22534a;
  --companion-soft: #eef5f2;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-width: 280px;
  color: var(--companion-ink);
  background: var(--companion-paper);
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

.word-companion-shell {
  display: grid;
  gap: 12px;
  width: 100%;
  max-width: 420px;
  min-height: 100vh;
  padding: 16px;
}

.word-companion-header {
  display: grid;
  gap: 6px;
  border-bottom: 1px solid var(--companion-line);
  padding-bottom: 14px;
}

.word-companion-eyebrow {
  margin: 0;
  color: var(--companion-accent-dark);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.word-companion-header h1 {
  margin: 0;
  font-size: 1.55rem;
  line-height: 1.1;
}

.word-companion-status,
.word-companion-user,
.word-companion-message,
.word-companion-footer {
  margin: 0;
  color: var(--companion-muted);
  font-size: 0.9rem;
}

.word-companion-status {
  color: var(--companion-accent-dark);
  font-weight: 700;
}

.word-companion-sign-in {
  display: inline-flex;
  justify-content: center;
  width: fit-content;
  border: 1px solid var(--companion-accent);
  border-radius: 6px;
  padding: 6px 10px;
  background: var(--companion-accent);
  color: #ffffff;
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
}

.word-companion-section {
  display: grid;
  gap: 8px;
  border: 1px solid var(--companion-line);
  border-radius: 8px;
  padding: 12px;
  background: var(--companion-panel);
}

.word-companion-section span,
.word-companion-section label,
.word-companion-summary span {
  color: var(--companion-muted);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.word-companion-section label {
  display: block;
}

.word-companion-section select {
  width: 100%;
  min-height: 36px;
  border: 1px solid var(--companion-line);
  border-radius: 6px;
  padding: 6px 8px;
  background: #ffffff;
  color: var(--companion-ink);
  font: inherit;
}

.word-companion-section select:disabled {
  background: var(--companion-soft);
  color: var(--companion-muted);
}

.word-companion-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.word-companion-section-header button {
  min-height: 32px;
  border: 1px solid var(--companion-accent);
  border-radius: 6px;
  padding: 5px 9px;
  background: var(--companion-accent);
  color: #ffffff;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 700;
}

.word-companion-actions button:disabled,
.word-companion-section-header button:disabled {
  border-color: var(--companion-line);
  background: var(--companion-soft);
  color: var(--companion-muted);
}

.word-companion-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.word-companion-actions button {
  min-height: 36px;
  border: 1px solid var(--companion-accent);
  border-radius: 6px;
  padding: 6px 8px;
  background: #ffffff;
  color: var(--companion-accent-dark);
  font: inherit;
  font-size: 0.84rem;
  font-weight: 800;
}

.word-companion-actions .word-companion-primary-action {
  background: var(--companion-accent);
  color: #ffffff;
}

.word-companion-actions button:disabled {
  border-color: var(--companion-line);
  background: var(--companion-soft);
  color: var(--companion-muted);
}

.word-companion-message:empty {
  display: none;
}

.word-companion-section strong {
  min-width: 0;
  font-size: 0.98rem;
  overflow-wrap: anywhere;
}

.word-companion-scene-card,
.word-companion-structure-grid {
  display: grid;
  gap: 8px;
}

.word-companion-scene-card {
  border: 1px solid rgba(47, 111, 99, 0.18);
  border-radius: 8px;
  padding: 10px;
  background: var(--companion-soft);
}

.word-companion-scene-card div,
.word-companion-sync-meta div,
.word-companion-structure-grid div,
.word-companion-diagnostics-grid div {
  display: grid;
  gap: 2px;
}

.word-companion-sync-meta {
  display: grid;
  gap: 8px;
  grid-template-columns: 1fr 1fr;
}

.word-companion-diagnostics-grid {
  display: grid;
  gap: 8px;
  grid-template-columns: 1fr 1fr;
}

.word-companion-diagnostics-grid strong {
  font-size: 0.88rem;
}

.word-companion-resolve-diagnostics,
.word-companion-scene-details,
.word-companion-link-groups {
  display: grid;
  gap: 8px;
}

.word-companion-resolve-diagnostics div,
.word-companion-scene-details div,
.word-companion-link-groups div {
  display: grid;
  gap: 3px;
}

.word-companion-resolve-diagnostics {
  padding-top: 4px;
}

.word-companion-resolve-diagnostics strong {
  font-size: 0.86rem;
}

.word-companion-progress-sync {
  display: grid;
  gap: 8px;
  border-top: 1px solid var(--companion-line);
  padding-top: 8px;
}

.word-companion-progress-grid {
  display: grid;
  gap: 8px;
}

.word-companion-progress-grid div {
  display: grid;
  gap: 3px;
}

.word-companion-progress-grid strong {
  font-size: 0.88rem;
}

.word-companion-brief {
  display: grid;
  gap: 5px;
}

.word-companion-brief p {
  margin: 0;
  border: 1px solid var(--companion-line);
  border-radius: 6px;
  padding: 8px;
  background: var(--companion-soft);
  color: var(--companion-ink);
  font-size: 0.9rem;
  line-height: 1.35;
  white-space: pre-wrap;
}

.word-companion-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.word-companion-chip,
.word-companion-empty-chip {
  border: 1px solid rgba(47, 111, 99, 0.25);
  border-radius: 999px;
  padding: 3px 7px;
  background: var(--companion-soft);
  color: var(--companion-accent-dark);
  font-size: 0.82rem;
  font-weight: 700;
}

.word-companion-empty-chip {
  border-color: var(--companion-line);
  color: var(--companion-muted);
  font-weight: 600;
}

.word-companion-outline {
  display: grid;
  gap: 8px;
  padding-top: 4px;
}

.word-companion-outline p {
  margin: 0;
  color: var(--companion-muted);
  font-size: 0.9rem;
}

.word-companion-outline-chapter {
  display: grid;
  gap: 4px;
}

.word-companion-outline-chapter ul {
  display: grid;
  gap: 3px;
  margin: 0;
  padding-left: 18px;
}

.word-companion-outline-chapter li {
  color: var(--companion-ink);
  font-size: 0.9rem;
}

.word-companion-summary {
  display: grid;
  gap: 8px;
  border: 1px solid rgba(47, 111, 99, 0.18);
  border-radius: 8px;
  padding: 12px;
  background: var(--companion-soft);
}

.word-companion-summary div {
  display: grid;
  gap: 2px;
}

.word-companion-summary strong {
  min-width: 0;
  font-size: 0.92rem;
  overflow-wrap: anywhere;
}

.word-companion-collapsible {
  gap: 10px;
}

.word-companion-collapsible:not([open]) > :not(summary) {
  display: none !important;
}

.word-companion-collapsible summary {
  cursor: pointer;
  color: var(--companion-ink);
  font-size: 0.92rem;
  font-weight: 800;
  list-style-position: outside;
}

.word-companion-collapsible[open] summary {
  padding-bottom: 6px;
  border-bottom: 1px solid var(--companion-line);
}

.word-companion-collapsible .word-companion-section-header {
  padding-top: 4px;
}

.word-companion-footer {
  border-top: 1px solid var(--companion-line);
  margin-top: auto;
  padding-top: 12px;
}