* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --pb:  #4a2e1a;
  --pbm: #7a4a2a;
  --pbl: #c4956a;
  --pg:  #c9a84c;
  --pgl: #e8d5a3;
  --pc:  #f9f5ee;
  --pd:  #1e1209;
  --pcb: #e0d5c0;
}

html, body {
  min-height: 100vh;
  width: 100%;
  background: #e8e0d0;
  font-family: Arial, sans-serif;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 20px 60px;
}

.shell {
  background: white;
  border: 1px solid var(--pcb);
  border-radius: 6px;
  overflow: hidden;
  width: 100%;
  max-width: 700px;
  box-shadow: 0 2px 12px rgba(74,46,26,0.10);
  position: relative; /* needed for drawer/overlay positioning */
}

/* Accent bar */
.accent-bar {
  height: 4px;
  background: linear-gradient(to right, var(--pb) 0%, var(--pg) 40%, var(--pbl) 70%, var(--pgl) 100%);
}

/* Header */
.header {
  padding: 20px 28px 18px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  border-bottom: 1px solid var(--pcb);
}
/* Beta-testing notice */
.beta-notice {
  padding: 12px 28px;
  background: var(--pc);
  border-bottom: 1px solid var(--pcb);
  font-size: 12px;
  line-height: 1.5;
  color: var(--pbm);
}
.beta-notice strong { color: var(--pb); }
.beta-notice a { color: var(--pb); }

.logo-area { display: flex; flex-direction: column; gap: 4px; }
.logo-row  { display: flex; align-items: center; gap: 12px; }
.pipe-glyph { display: flex; align-items: flex-end; gap: 3px; }
.pipe-glyph span {
  background: var(--pg);
  border-radius: 1px 1px 0 0;
  display: block;
}
.wordmark {
  font-size: 26px;
  color: var(--pb);
  letter-spacing: -0.01em;
  font-family: Georgia, serif;
  font-style: italic;
  cursor: pointer;
  user-select: none;
}
.wordmark em { color: var(--pg); font-style: normal; }
.tagline {
  font-size: 11px;
  color: var(--pbl);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding-left: 2px;
}
.nav { display: flex; gap: 20px; padding-top: 4px; }
.nav a {
  font-size: 11px;
  color: var(--pbm);
  text-decoration: none;
  letter-spacing: 0.06em;
  opacity: 0.7;
}
.nav a:hover { opacity: 1; color: var(--pb); }

/* Pipeline track */
.pipeline-track {
  display: flex;
  align-items: stretch;
  background: var(--pc);
  border-bottom: 1px solid var(--pcb);
  overflow: hidden;
}
.pipeline-step {
  flex: 1;
  padding: 10px 12px 9px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  position: relative;
}
.pipeline-step::after {
  content: '▸';
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 10px;
  color: var(--pbl);
  opacity: 0.5;
  z-index: 2;
}
.pipeline-step:last-child::after { display: none; }
.pipeline-step.active {
  background: white;
  border-bottom: 2px solid var(--pg);
  margin-bottom: -1px;
}
.step-name {
  font-size: 10px;
  font-weight: bold;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--pb);
  opacity: 0.4;
}
.pipeline-step.active .step-name { opacity: 1; }
.pipeline-step.done .step-name { opacity: 0.7; }
.step-tool {
  font-size: 9px;
  color: var(--pbl);
  letter-spacing: 0.04em;
  font-style: italic;
}
.pipeline-step.done .step-tool { color: var(--pg); }

/* Body */
.body { padding: 24px 28px 28px; }

.section { margin-bottom: 22px; }
.section-head {
  font-size: 13px;
  font-weight: bold;
  color: var(--pb);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.step-dot {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--pb);
  color: var(--pgl);
  font-size: 10px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-weight: bold;
}
.section-rule { flex: 1; height: 1px; background: var(--pcb); }

/* Step toggle checkbox + two-line label */
.step-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.step-head > input[type="checkbox"] { display: none; }
.step-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
  flex-shrink: 0;
}
.step-toggle .cb-box {
  width: 20px; height: 20px;
  border-radius: 4px;
  border: 1.5px solid var(--pbl);
  background: white;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: background 0.15s, border-color 0.15s;
}
.step-toggle .cb-box::after {
  content: '';
  display: block;
  width: 5px; height: 9px;
  border-right: 2px solid white;
  border-bottom: 2px solid white;
  transform: rotate(45deg) translate(-1px, -1px);
  opacity: 0;
  transition: opacity 0.1s;
}
.step-toggle.checked .cb-box { background: var(--pb); border-color: var(--pb); }
.step-toggle.checked .cb-box::after { opacity: 1; }
.step-label-group { display: flex; flex-direction: column; gap: 2px; }
.step-label-name {
  font-size: 13px;
  font-weight: bold;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pb);
  line-height: 1;
}
.step-label-tool {
  font-size: 10px;
  color: var(--pbl);
  letter-spacing: 0.04em;
  line-height: 1;
}
.step-toggle:not(.checked) .step-label-name,
.step-toggle:not(.checked) .step-label-tool { opacity: 0.35; }
.step-body {
  overflow: hidden;
  max-height: 700px;
  transition: max-height 0.3s ease, opacity 0.25s ease;
  opacity: 1;
}
.step-body.collapsed { max-height: 0; opacity: 0; }

/* Help button */
.help-btn {
  width: 18px; height: 18px;
  border-radius: 50%;
  border: 1px solid var(--pbl);
  background: transparent;
  color: var(--pbl);
  font-size: 10px;
  font-weight: bold;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-family: Arial, sans-serif;
  line-height: 1;
  transition: all 0.15s;
  padding: 0;
}
.help-btn:hover { background: var(--pb); border-color: var(--pb); color: var(--pgl); }

/* Upload zone */
.upload-zone {
  border: 1.5px dashed var(--pcb);
  border-radius: 6px;
  padding: 32px 20px;
  text-align: center;
  background: var(--pc);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  user-select: none;
}
.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--pg);
  background: #fdf9f2;
}
.upload-zone.has-file { border-color: var(--pbl); background: #fdf9f2; }
.upload-zone.flash-error {
  border-color: #d4856a;
  border-style: solid;
  background: #fff5f0;
  transition: border-color 0s, background 0s;
  animation: shake 0.4s ease;
}
@keyframes shake {
  0%        { transform: translateX(0); }
  20%       { transform: translateX(-8px); }
  40%       { transform: translateX(7px); }
  60%       { transform: translateX(-5px); }
  80%       { transform: translateX(4px); }
  100%      { transform: translateX(0); }
}
.upload-icon-row {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 3px;
  margin-bottom: 10px;
  height: 32px;
}
.upload-pipe { background: var(--pgl); border-radius: 2px 2px 0 0; }
.upload-primary {
  font-size: 13px;
  color: var(--pb);
  font-weight: bold;
  margin-bottom: 4px;
}
.upload-secondary { font-size: 11px; color: var(--pbl); }
.upload-filename {
  font-size: 12px;
  color: var(--pb);
  font-weight: bold;
  margin-top: 6px;
}

/* Form layout */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }

.field label {
  display: block;
  font-size: 11px;
  color: var(--pbm);
  margin-bottom: 5px;
  font-weight: bold;
  letter-spacing: 0.03em;
}
.field select, .field input[type="text"], .field input[type="email"] {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--pcb);
  border-radius: 4px;
  background: white;
  font-size: 12px;
  color: var(--pd);
  outline: none;
  font-family: Arial, sans-serif;
  appearance: none;
  -webkit-appearance: none;
}
.field select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23c4956a'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 10px center; padding-right: 28px; }
.field select:focus, .field input:focus {
  border-color: var(--pg);
  box-shadow: 0 0 0 3px rgba(201,168,76,0.12);
}

textarea {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--pcb);
  border-radius: 4px;
  background: white;
  font-size: 12px;
  color: var(--pd);
  outline: none;
  font-family: Arial, sans-serif;
  resize: vertical;
  box-sizing: border-box;
}
textarea:focus {
  border-color: var(--pg);
  box-shadow: 0 0 0 3px rgba(201,168,76,0.12);
}

/* Segmented control */
.segmented { display: flex; border: 1px solid var(--pcb); border-radius: 4px; overflow: hidden; }
.seg-opt { flex: 1; }
.seg-opt input[type="radio"] { display: none; }
.seg-opt label {
  display: block;
  text-align: center;
  padding: 7px 4px;
  font-size: 11px;
  color: var(--pbm);
  cursor: pointer;
  border-right: 1px solid var(--pcb);
  background: white;
  transition: all 0.15s;
  font-weight: bold;
}
.seg-opt:last-child label { border-right: none; }
.seg-opt input:checked + label { background: var(--pb); color: var(--pgl); }

/* Advanced toggle */
.adv-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--pbl);
  cursor: pointer;
  user-select: none;
  margin-bottom: 10px;
  letter-spacing: 0.05em;
}
.adv-toggle .chevron { transition: transform 0.2s; font-size: 9px; }
.adv-toggle.open .chevron { transform: rotate(90deg); }
.adv-panel { display: none; background: var(--pc); border: 1px solid var(--pcb); border-radius: 4px; padding: 16px; }
.adv-panel.open { display: block; }
.adv-coming-soon { font-size: 12px; font-style: italic; color: var(--pbl); margin: 0 0 12px; }
.adv-label { font-size: 10px; font-weight: bold; color: var(--pbm); letter-spacing: 0.05em; text-transform: uppercase; margin: 0 0 10px; }
.adv-rule { border: none; border-top: 1px solid var(--pcb); margin: 0 0 14px; }
.field-check { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.field-check label { font-size: 12px; color: var(--pb); margin: 0; cursor: pointer; font-weight: normal; letter-spacing: normal; }
.field-check input[type="checkbox"], .field-check input[type="radio"] { width: 14px; height: 14px; cursor: pointer; accent-color: var(--pg); flex-shrink: 0; }

/* Submit area */
.submit-area { display: flex; gap: 12px; align-items: flex-end; }
.submit-area .field { flex: 1; }
.queue-status { flex: 1; align-self: center; font-size: 12px; font-style: italic; color: var(--pbl); line-height: 1.45; }
.queue-status-note { margin-top: 4px; color: var(--pbm); }
.cancel-job-btn { padding: 5px 12px; font-size: 10px; margin-top: 10px; }
.cancel-job-btn:disabled { opacity: 0.6; cursor: default; }
.class-code-field { max-width: 320px; }
.class-code-status { font-size: 11px; color: var(--pbl); margin-top: 4px; min-height: 14px; line-height: 1.4; }
.class-code-status.good { color: #3d6b2f; }
.class-code-status.bad { color: #a0442a; }

/* Buttons */
.btn {
  padding: 9px 24px;
  background: var(--pb);
  color: var(--pgl);
  border: none;
  border-radius: 4px;
  font-size: 11px;
  font-weight: bold;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: background 0.15s;
  font-family: Arial, sans-serif;
}
.btn:hover { background: var(--pbm); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-outline {
  padding: 9px 24px;
  background: transparent;
  color: var(--pbm);
  border: 1px solid var(--pcb);
  border-radius: 4px;
  font-size: 11px;
  font-weight: bold;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s;
  font-family: Arial, sans-serif;
}
.btn-outline:hover { border-color: var(--pbl); color: var(--pb); }

/* Progress view */
.progress-view {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 48px 28px;
  gap: 20px;
}
.progress-spinner {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 40px;
}
.spinner-pipe {
  width: 6px;
  border-radius: 2px 2px 0 0;
  background: var(--pgl);
  animation: pipepulse 1.2s ease-in-out infinite;
}
.spinner-pipe:nth-child(1) { animation-delay: 0s;    height: 20px; }
.spinner-pipe:nth-child(2) { animation-delay: 0.15s; height: 32px; }
.spinner-pipe:nth-child(3) { animation-delay: 0.3s;  height: 16px; }
.spinner-pipe:nth-child(4) { animation-delay: 0.45s; height: 28px; }
.spinner-pipe:nth-child(5) { animation-delay: 0.6s;  height: 24px; }
.spinner-pipe.active { background: var(--pg); }
@keyframes pipepulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50%       { opacity: 1;   transform: scaleY(1.25); transform-origin: bottom; }
}
.progress-step-label {
  font-size: 13px;
  font-weight: bold;
  color: var(--pb);
  letter-spacing: 0.03em;
}
.progress-fun-label {
  font-size: 11px;
  font-style: italic;
  color: var(--pbl);
  margin-top: 2px;
  min-height: 14px;
}
.progress-note {
  font-size: 11px;
  color: var(--pbl);
  max-width: 360px;
  line-height: 1.5;
}
.progress-filename {
  font-size: 11px;
  color: var(--pbm);
  background: var(--pc);
  border: 1px solid var(--pcb);
  border-radius: 4px;
  padding: 5px 12px;
  letter-spacing: 0.02em;
}

/* Results view */
.results-view {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 40px 28px;
  gap: 20px;
}
.success-mark {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--pgl);
  border: 2px solid var(--pg);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  color: var(--pg);
}
.results-title {
  font-size: 18px;
  font-family: Georgia, serif;
  font-style: italic;
  color: var(--pb);
}
.results-title em { color: var(--pg); font-style: normal; }
.results-note { font-size: 12px; color: var(--pbm); max-width: 400px; line-height: 1.6; }
.results-actions { display: flex; gap: 12px; align-items: center; }

/* Error view */
.error-view {
  padding: 40px 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}
.error-icon {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: #fff5f0;
  border: 2px solid #d4856a;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  color: #c4603a;
}
.error-title { font-size: 15px; font-weight: bold; color: var(--pd); }
.error-message {
  font-size: 11px;
  color: var(--pbm);
  background: var(--pc);
  border: 1px solid var(--pcb);
  border-radius: 4px;
  padding: 12px 16px;
  max-width: 480px;
  text-align: left;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: monospace;
}
.error-contact {
  font-size: 12px;
  color: var(--pbm);
  background: var(--pc);
  border: 1px solid var(--pcb);
  border-radius: 4px;
  padding: 12px 16px;
  max-width: 480px;
  text-align: left;
  line-height: 1.8;
}
.error-contact a { color: var(--pbm); }
.error-contact ul { margin: 4px 0 0 18px; }
.error-contact code {
  font-family: monospace;
  font-size: 11px;
  background: var(--pcb);
  padding: 1px 5px;
  border-radius: 3px;
  user-select: all;
}

/* Footer */
.footer {
  border-top: 1px solid var(--pcb);
  padding: 10px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-left { font-size: 10px; color: var(--pbl); letter-spacing: 0.06em; }
.footer-version-link { color: inherit; text-decoration: none; }
.footer-version-link:hover { text-decoration: underline; }
.pipe-row-footer { display: flex; gap: 2px; align-items: flex-end; }
.pipe-row-footer span {
  background: var(--pcb);
  border-radius: 1px 1px 0 0;
  display: block;
}

/* Hidden file inputs */
#audio-input, #textgrid-input, #batch-file-input { display: none; }

/* Primary job inline done/error (shown instead of navigating away, when
   additional files are also in flight) */
.primary-done-inline, .primary-error-inline {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  padding: 12px 16px;
  border-radius: 4px;
  text-align: center;
}
.primary-done-inline  { background: var(--pgl); border: 1px solid var(--pg); }
.primary-error-inline { background: #fff5f0;    border: 1px solid #d4856a; }
.primary-inline-title { font-size: 12px; font-weight: bold; color: var(--pb); }
.primary-inline-message {
  font-size: 11px;
  color: #7a3a20;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: monospace;
}

/* Batch upload ("process additional files") */
.batch-drop-zone { margin-bottom: 10px; padding: 20px; }
.batch-capacity-status {
  display: none;
  margin-bottom: 12px;
  font-size: 11px;
  color: var(--pbm);
  text-align: center;
}
#batch-cap-banner {
  display: none;
  margin-bottom: 12px;
  padding: 8px 12px;
  background: #fff5f0;
  border: 1px solid #d4856a;
  border-radius: 4px;
  font-size: 11px;
  color: #7a3a20;
  line-height: 1.5;
}
.batch-table { display: flex; flex-direction: column; gap: 8px; }
.batch-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px 12px;
  border: 1px solid var(--pcb);
  border-radius: 4px;
  background: var(--pc);
  font-size: 11px;
}
.batch-row.exact-match  { border-color: var(--pg); }
.batch-row.fuzzy-match  { border-color: var(--pbl); background: #fdf9f2; }
.batch-row.ambiguous,
.batch-row.error-singleton {
  border-color: #d4856a;
  background: #fff5f0;
}
.batch-row.locked { opacity: 0.85; }
.batch-row-files { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.batch-cell-note { font-size: 10px; color: var(--pbm); flex-basis: 100%; }
.batch-cell-file {
  padding: 4px 8px;
  background: white;
  border: 1px solid var(--pcb);
  border-radius: 3px;
  cursor: grab;
  font-size: 11px;
  color: var(--pd);
  min-width: 0;
  overflow-wrap: anywhere;
}
.batch-cell-file.batch-cell-empty { color: var(--pbl); font-style: italic; cursor: default; padding: 2px 4px; }
.batch-cell-remove { margin-left: auto; }
.batch-pair-select {
  font-size: 11px;
  padding: 4px 6px;
  border: 1px solid var(--pcb);
  border-radius: 3px;
  max-width: 200px;
}
.batch-row-tiers {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  padding-top: 6px;
  border-top: 1px dashed var(--pcb);
}
.batch-tier-caption { font-size: 10px; color: var(--pbl); flex-basis: 100%; margin-bottom: 2px; }
.tier-label {
  font-size: 10px;
  font-weight: bold;
  color: var(--pbm);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.batch-tier-select {
  font-size: 10px;
  padding: 3px 6px;
  border: 1px solid var(--pcb);
  border-radius: 3px;
  max-width: 130px;
}
.batch-propagate-btn {
  border: 1px solid var(--pcb);
  background: white;
  color: var(--pbm);
  border-radius: 3px;
  font-size: 9px;
  font-weight: bold;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 3px 7px;
  white-space: nowrap;
}
.batch-propagate-btn:hover { border-color: var(--pg); color: var(--pb); }
.batch-row-action { display: flex; justify-content: flex-end; align-items: center; padding-top: 2px; }
.batch-status-chip {
  font-size: 10px;
  font-weight: bold;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 10px;
  white-space: nowrap;
}
.chip-queued  { background: var(--pgl); color: var(--pb); }
.chip-running { background: var(--pg);  color: white; }
.chip-error   { background: #fff5f0; color: #c4603a; border: 1px solid #d4856a; }
.batch-remove-btn {
  width: 20px; height: 20px;
  border-radius: 50%;
  border: 1px solid var(--pcb);
  background: white;
  color: var(--pbl);
  cursor: pointer;
  font-size: 12px;
  line-height: 1;
}
.batch-remove-btn:hover { background: #fff5f0; border-color: #d4856a; color: #c4603a; }
.batch-summary-bar {
  display: none;
  margin-top: 10px;
  font-size: 11px;
  color: var(--pbm);
  text-align: right;
}

/* Confirmed jobs — each a mini version of the primary processing view */
.confirmed-job-divider { border: none; border-top: 2px solid var(--pbl); margin: 0; }
.confirmed-job-header {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
  padding: 16px 28px;
}
.confirmed-job-chevron { font-size: 10px; color: var(--pbl); transition: transform 0.2s; flex-shrink: 0; }
.confirmed-job-header.open .confirmed-job-chevron { transform: rotate(90deg); }
.confirmed-job-filename-label { font-size: 12px; font-weight: bold; color: var(--pb); flex: 1; overflow-wrap: anywhere; }
.confirmed-job-status-label {
  font-size: 10px;
  font-weight: bold;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--pbm);
}
.confirmed-job-body .progress-view { gap: 14px; }

/* ─── Slide-in drawer ───────────────────────────────────────────── */
.drawer-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(30,18,9,0.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
  z-index: 9;
}
.drawer-overlay.open { opacity: 1; pointer-events: all; }

.drawer {
  position: absolute;
  top: 0; right: 0;
  width: 75%;
  height: 100%;
  background: white;
  border-left: 1px solid var(--pcb);
  box-shadow: -4px 0 24px rgba(74,46,26,0.18);
  transform: translateX(100%);
  transition: transform 0.25s ease;
  z-index: 10;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.drawer.open { transform: translateX(0); }

.drawer-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--pcb);
  background: var(--pc);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.drawer-title {
  font-size: 11px;
  font-weight: bold;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--pb);
}
.drawer-close {
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 1px solid var(--pcb);
  background: white;
  color: var(--pbl);
  font-size: 12px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s;
  font-family: Arial, sans-serif;
  padding: 0;
  line-height: 1;
}
.drawer-close:hover { background: var(--pb); border-color: var(--pb); color: var(--pgl); }

.drawer-body {
  padding: 20px;
  overflow-y: auto;
  flex: 1;
}

/* ─── Docs tab view ─────────────────────────────────────────────── */
.docs-tab-nav {
  display: flex;
  align-items: stretch;
  border-bottom: 1px solid var(--pcb);
  background: var(--pc);
  padding: 0 20px;
}
.docs-back-btn {
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--pbl);
  background: none;
  border: none;
  border-right: 1px solid var(--pcb);
  cursor: pointer;
  font-family: Arial, sans-serif;
  padding: 0 14px 0 4px;
  margin-right: 8px;
  transition: color 0.15s;
  white-space: nowrap;
  flex-shrink: 0;
}
.docs-back-btn:hover { color: var(--pb); }

.docs-tab-btn {
  padding: 10px 14px;
  font-size: 11px;
  font-weight: bold;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pbm);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  opacity: 0.55;
  transition: all 0.15s;
  font-family: Arial, sans-serif;
  margin-bottom: -1px;
}
.docs-tab-btn:hover { opacity: 0.9; }
.docs-tab-btn.active { opacity: 1; color: var(--pb); border-bottom-color: var(--pg); }

/* ─── Prose / documentation content ────────────────────────────── */
.prose { color: var(--pd); }
.prose h2 {
  font-size: 17px;
  font-family: Georgia, serif;
  font-style: italic;
  color: var(--pb);
  margin: 0 0 16px;
  font-weight: normal;
}
.prose h3 {
  font-size: 10px;
  font-weight: bold;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pb);
  margin: 22px 0 8px;
}
.prose h3:first-child { margin-top: 0; }
.prose p { font-size: 12px; color: var(--pbm); margin: 0 0 10px; line-height: 1.75; }
.prose p:last-child { margin-bottom: 0; }
.prose ul, .prose ol { font-size: 12px; color: var(--pbm); margin: 0 0 10px 18px; line-height: 1.75; }
.prose li { margin-bottom: 4px; }
.prose a { color: var(--pbm); }
.prose a:hover { color: var(--pb); }
.prose strong { color: var(--pb); }
.prose em { font-style: italic; }
.prose code {
  font-family: monospace;
  font-size: 11px;
  background: var(--pc);
  border: 1px solid var(--pcb);
  border-radius: 3px;
  padding: 1px 5px;
}
.prose pre {
  font-family: monospace;
  font-size: 11px;
  background: var(--pc);
  border: 1px solid var(--pcb);
  border-radius: 4px;
  padding: 12px 14px;
  overflow-x: auto;
  margin: 8px 0 12px;
  line-height: 1.6;
  color: var(--pd);
  white-space: pre;
}
.cite-block {
  background: var(--pc);
  border-left: 3px solid var(--pgl);
  border-radius: 0 4px 4px 0;
  padding: 10px 14px;
  margin: 8px 0 20px;
  font-size: 12px;
  color: var(--pbm);
  line-height: 1.8;
}
.cite-block strong {
  display: block;
  margin-bottom: 5px;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--pbl);
  font-weight: bold;
}
.cite-block a { color: var(--pbm); word-break: break-all; }
.tab-panel { padding-top: 2px; }

/* Blockquotes — used for citation blocks in cite.md */
.prose blockquote {
  background: var(--pc);
  border-left: 3px solid var(--pgl);
  border-radius: 0 4px 4px 0;
  padding: 10px 14px;
  margin: 8px 0 20px;
}
.prose blockquote p { font-size: 12px; color: var(--pbm); margin: 0; line-height: 1.8; }
/* Style the **APA 7** bold label at the top of each citation blockquote */
.prose blockquote p strong:first-child {
  display: block;
  font-size: 10px; font-weight: bold; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--pbl); margin-bottom: 4px;
}
/* Prevent inline <code> styles from bleeding into fenced code blocks */
.prose pre code { background: none; border: none; padding: 0; border-radius: 0; font-size: inherit; }

/* Loading / error states for async content */
.content-loading { color: var(--pbl) !important; font-style: italic; }
.content-error   { color: #c4603a   !important; }