/* === TOOLS MODULE === */

/* Letter selector buttons */
.letter-selector__btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 1rem 1.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-family: 'Outfit', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.letter-selector__btn:hover {
  border-color: var(--border-accent);
  color: var(--text-primary);
  box-shadow: var(--shadow);
}

.letter-selector__btn.--A:hover,
.letter-selector__btn.--A.active {
  border-color: var(--color-A);
  background: var(--color-A-dim);
  color: var(--color-A);
}

.letter-selector__btn.--B:hover,
.letter-selector__btn.--B.active {
  border-color: var(--color-B);
  background: var(--color-B-dim);
  color: var(--color-B);
}

.letter-selector__icon {
  font-size: 1.1rem;
}

/* Letter viewer */
.letter-viewer {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
}

.letter-viewer__accent {
  height: 3px;
}

.letter-viewer__accent.--A { background: var(--color-A); }
.letter-viewer__accent.--B { background: var(--color-B); }

.letter-viewer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
}

.letter-viewer__body {
  padding: 2rem;
  max-width: 700px;
  margin: 0 auto;
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--text-secondary);
  max-height: 65vh;
  overflow-y: auto;
}

.letter-viewer__body h1,
.letter-viewer__body h2,
.letter-viewer__body h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.letter-viewer__body h1:first-child { margin-top: 0; }

.letter-viewer__body p {
  margin-bottom: 0.85rem;
}

.letter-viewer__body blockquote {
  border-left: 3px solid var(--border-accent);
  padding: 0.5rem 1rem;
  margin: 0.75rem 0;
  color: var(--text-muted);
  font-style: italic;
}

.letter-viewer__body ul {
  margin-left: 1.25rem;
  margin-bottom: 0.75rem;
}

.letter-viewer__body li {
  margin-bottom: 0.3rem;
  list-style: disc;
}

.letter-viewer__body strong {
  color: var(--text-primary);
}

.letter-viewer__body.--sources-visible strong {
  background: rgba(122, 156, 196, 0.15);
  padding: 0.1em 0.3em;
  border-radius: 3px;
}

.letter-viewer__body.--sources-visible em {
  background: rgba(196, 168, 122, 0.12);
  padding: 0.1em 0.3em;
  border-radius: 3px;
}

.letter-viewer__actions {
  display: flex;
  gap: 0.5rem;
  padding: 1rem 2rem;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

/* Simulator */
.simulator {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.simulator__input-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.simulator__textarea {
  width: 100%;
  min-height: 150px;
  padding: 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: 'DM Mono', monospace;
  font-size: 0.85rem;
  resize: vertical;
  outline: none;
  transition: border-color var(--transition);
}

.simulator__textarea:focus {
  border-color: var(--color-neutral);
}

.simulator__textarea::placeholder {
  color: var(--text-muted);
}

.simulator__output-panel {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  min-height: 200px;
}

.simulator__output-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.75rem;
}

.simulator__response {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Warning checklist */
.warning-checklist {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.warning-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.warning-item.--active {
  border-color: var(--color-conflict);
  background: rgba(196, 122, 122, 0.05);
}

.warning-item.--safe {
  border-color: var(--color-repair);
  background: rgba(122, 196, 160, 0.05);
}

.warning-item__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
}

.warning-item.--active .warning-item__icon {
  background: rgba(196, 122, 122, 0.15);
  color: var(--color-conflict);
}

.warning-item.--safe .warning-item__icon {
  background: rgba(122, 196, 160, 0.15);
  color: var(--color-repair);
}

.warning-item__text {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.warning-item__detail {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Brief document viewer */
.brief-viewer {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  max-width: 800px;
}

.brief-viewer h1,
.brief-viewer h2,
.brief-viewer h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

.brief-viewer h1:first-child { margin-top: 0; }

.brief-viewer p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.brief-viewer ul, .brief-viewer ol {
  margin-left: 1.25rem;
  margin-bottom: 0.75rem;
}

.brief-viewer li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 0.3rem;
  list-style: disc;
}

.brief-viewer blockquote {
  border-left: 3px solid var(--border-accent);
  padding: 0.5rem 1rem;
  margin: 0.75rem 0;
  color: var(--text-muted);
  font-style: italic;
}

.brief-viewer.--hide-quotes blockquote {
  display: none;
}

.brief-viewer table {
  width: 100%;
  font-size: 0.82rem;
  margin-bottom: 0.75rem;
}

.brief-viewer th {
  text-align: left;
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

.brief-viewer td {
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

.brief-viewer strong {
  color: var(--text-primary);
}

.brief-viewer code {
  font-family: 'DM Mono', monospace;
  font-size: 0.82rem;
  background: var(--bg-tertiary);
  padding: 0.15em 0.4em;
  border-radius: 3px;
}

/* Simulator speaker active states */
.speaker-btn.--A-active {
  border-color: var(--color-A);
  background: var(--color-A-dim);
  color: var(--color-A);
}

.speaker-btn.--B-active {
  border-color: var(--color-B);
  background: var(--color-B-dim);
  color: var(--color-B);
}

/* Button active state */
.btn.active {
  border-color: var(--color-neutral);
  background: rgba(122, 156, 196, 0.1);
  color: var(--text-primary);
}

/* Warning table rows */
.warning-checklist label {
  user-select: none;
}

@media (max-width: 768px) {
  .simulator {
    grid-template-columns: 1fr;
  }

  .letter-selector {
    flex-direction: column;
  }

  .letter-viewer__header {
    padding: 0.75rem 1rem;
  }

  .letter-viewer__body {
    padding: 1.25rem;
  }

  .letter-viewer__actions {
    padding: 0.75rem 1rem;
  }

  .brief-viewer {
    padding: 1.25rem;
  }
}