/* review-comments.css - additive styles for the practice-test surface.
   The base layout (.layout, .left, .right-content, .rb-block, .rb-comment-slot,
   .rb-comment, .rb-form) is defined inline in each review HTML. This sheet
   adds:
     - testing-guide aside (.practice-guide)
     - the DEV badge in the page header
     - word-popup floating panel
     - Edit/Comment pill toggle
     - syntax preview chip + color overlay over the textarea
     - drag-select indicator
     - tooltips
*/

:root {
  --pg-bg: #ffffff;
  --pg-border: #d8dde8;
  --pg-text: #1a1f3a;
  --pg-mute: #6b7390;
  --pg-accent: #61bdb7;
  --pg-accent-bg: #eef9f8;
  --pg-warn: #d05656;
  --pg-warn-bg: #fdecec;
  --pg-soft: #f4f6fa;
  --pat-arrow: #4f7cff;
  --pat-ellipses: #c95cb6;
  --pat-tilde: #b87a3a;
  --pat-mp: #d05656;
  --pat-eng-to: #2e8a64;
  --pat-old: #d05656;
  --pat-new: #2e8a64;
}

.practice-badge {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 2px 8px;
  border-radius: 3px;
  background: #fde9d3;
  color: #b85b00;
  font-weight: 700;
  vertical-align: middle;
  margin-left: 10px;
  text-transform: uppercase;
}

/* ----- testing guide ----- */
.practice-guide {
  position: fixed;
  top: 16px;
  right: 16px;
  width: 320px;
  max-height: calc(100vh - 32px);
  overflow-y: auto;
  background: var(--pg-bg);
  border: 1px solid var(--pg-border);
  border-radius: 10px;
  box-shadow: 0 12px 28px -16px rgba(20, 30, 60, 0.18);
  font-size: 13px;
  line-height: 1.5;
  color: var(--pg-text);
  z-index: 50;
  padding: 0;
}
.practice-guide header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--pg-border);
  background: var(--pg-soft);
  border-radius: 10px 10px 0 0;
}
.practice-guide header strong { font-size: 14px; }
.practice-guide .pg-collapse {
  background: transparent;
  border: 1px solid var(--pg-border);
  width: 24px; height: 24px;
  border-radius: 4px;
  font-size: 16px; line-height: 1;
  cursor: pointer;
  color: var(--pg-mute);
}
.practice-guide .pg-collapse:hover { background: #fff; color: var(--pg-text); }
.practice-guide[data-collapsed="true"] .pg-intro,
.practice-guide[data-collapsed="true"] .pg-steps,
.practice-guide[data-collapsed="true"] .pg-foot { display: none; }
.practice-guide[data-collapsed="true"] header { border-bottom: 0; border-radius: 10px; }
.practice-guide .pg-intro {
  margin: 12px 14px 8px;
  color: var(--pg-mute);
  font-size: 12.5px;
}
.practice-guide .pg-steps {
  margin: 0 14px 12px 28px;
  padding: 0;
  font-size: 12.5px;
}
.practice-guide .pg-steps li {
  margin-bottom: 8px;
  color: var(--pg-text);
}
.practice-guide .pg-steps li.is-done {
  color: var(--pg-mute);
  text-decoration: line-through;
}
.practice-guide code {
  background: var(--pg-soft);
  border: 1px solid var(--pg-border);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 11.5px;
}
.practice-guide .pg-foot {
  margin: 0;
  padding: 10px 14px;
  border-top: 1px solid var(--pg-border);
  color: var(--pg-mute);
  font-size: 11.5px;
  background: var(--pg-soft);
  border-radius: 0 0 10px 10px;
}

@media (max-width: 1100px) {
  .practice-guide {
    position: static;
    width: auto;
    margin: 16px;
    max-height: none;
  }
}

/* ----- word popup ----- */
.rb-word { cursor: pointer; }
.rb-word:hover {
  background: var(--pg-accent-bg);
  outline: 1px solid var(--pg-accent);
  border-radius: 2px;
}
.rb-word-popup {
  position: absolute;
  z-index: 60;
  background: var(--pg-bg);
  border: 1px solid var(--pg-border);
  border-radius: 8px;
  padding: 6px;
  display: flex;
  gap: 4px;
  box-shadow: 0 8px 20px -10px rgba(20, 30, 60, 0.25);
  font-size: 12.5px;
}
.rb-word-popup::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 16px;
  width: 10px;
  height: 10px;
  background: var(--pg-bg);
  border-left: 1px solid var(--pg-border);
  border-top: 1px solid var(--pg-border);
  transform: rotate(45deg);
}
.rb-word-popup button {
  font: inherit;
  padding: 4px 10px;
  border-radius: 5px;
  border: 1px solid var(--pg-border);
  background: #fff;
  cursor: pointer;
  color: var(--pg-text);
}
.rb-word-popup button:hover { border-color: var(--pg-accent); color: var(--pg-accent); }
.rb-word-popup button.danger {
  border-color: var(--pg-warn);
  color: var(--pg-warn);
  background: var(--pg-warn-bg);
}
.rb-word-popup button.danger:hover { background: #fff; }
.rb-word-popup button.primary {
  border-color: var(--pg-accent);
  color: #fff;
  background: var(--pg-accent);
}
.rb-word-popup button.primary:hover { background: #4ea7a1; border-color: #4ea7a1; }

.rb-word.is-selected {
  background: #fff5dc;
  outline: 2px solid #e2b052;
  border-radius: 2px;
}

/* ----- drag-select indicator ----- */
.rb-block ::selection { background: #fde0c0; }
.rb-form .rb-selection-banner {
  background: var(--pg-soft);
  border-left: 3px solid var(--pg-accent);
  padding: 6px 10px;
  margin: 0 0 8px;
  font-size: 12.5px;
  color: var(--pg-text);
  border-radius: 0 4px 4px 0;
  word-break: break-word;
}
.rb-form .rb-selection-banner em { color: var(--pg-mute); font-style: italic; }
.rb-form .rb-selection-banner .clear {
  margin-left: 8px;
  background: transparent;
  border: 0;
  color: var(--pg-mute);
  cursor: pointer;
  font-size: 12px;
}
.rb-form .rb-selection-banner .clear:hover { color: var(--pg-warn); }

/* ----- Edit / Comment toggle ----- */
.rb-form .rb-intent-toggle {
  display: inline-flex;
  border: 1px solid var(--pg-border);
  border-radius: 999px;
  overflow: hidden;
  margin: 0 0 8px;
  background: var(--pg-soft);
  font-size: 12.5px;
}
.rb-form .rb-intent-toggle button {
  font: inherit;
  border: 0;
  padding: 4px 12px;
  background: transparent;
  color: var(--pg-mute);
  cursor: pointer;
}
.rb-form .rb-intent-toggle button.is-active {
  background: var(--pg-bg);
  color: var(--pg-text);
  font-weight: 600;
  box-shadow: inset 0 0 0 1px var(--pg-accent);
}

/* ----- syntax preview chip + overlay ----- */
.rb-form .rb-textarea-wrap {
  position: relative;
}
.rb-form .rb-textarea-wrap textarea {
  position: relative;
  z-index: 2;
  background: transparent;
}
.rb-form .rb-syntax-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  margin: 0;
  padding: inherit;
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow: hidden;
  pointer-events: none;
  color: transparent;
  z-index: 1;
}
.rb-form .rb-syntax-overlay .pat-old { background: rgba(208, 86, 86, 0.18); border-bottom: 2px solid var(--pat-old); }
.rb-form .rb-syntax-overlay .pat-new { background: rgba(46, 138, 100, 0.18); border-bottom: 2px solid var(--pat-new); }
.rb-form .rb-syntax-overlay .pat-anchor { color: var(--pat-ellipses); font-weight: 700; opacity: 0.9; }
.rb-form .rb-syntax-overlay .pat-arrow,
.rb-form .rb-syntax-overlay .pat-mp,
.rb-form .rb-syntax-overlay .pat-tilde { color: var(--pat-arrow); font-weight: 700; opacity: 0.9; }

.rb-form .rb-preview-chip {
  margin: 6px 0 0;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 12.5px;
  background: var(--pg-soft);
  border: 1px solid var(--pg-border);
  color: var(--pg-text);
  display: flex;
  gap: 8px;
  align-items: baseline;
  flex-wrap: wrap;
}
.rb-form .rb-preview-chip .pat-tag {
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 3px;
}
.rb-form .rb-preview-chip[data-pattern="ellipses"] .pat-tag { background: rgba(201, 92, 182, 0.15); color: var(--pat-ellipses); }
.rb-form .rb-preview-chip[data-pattern="arrow"] .pat-tag,
.rb-form .rb-preview-chip[data-pattern="quoted-arrow"] .pat-tag,
.rb-form .rb-preview-chip[data-pattern="gt"] .pat-tag { background: rgba(79, 124, 255, 0.15); color: var(--pat-arrow); }
.rb-form .rb-preview-chip[data-pattern="tilde"] .pat-tag { background: rgba(184, 122, 58, 0.15); color: var(--pat-tilde); }
.rb-form .rb-preview-chip[data-pattern="minus-plus"] .pat-tag { background: rgba(208, 86, 86, 0.15); color: var(--pat-mp); }
.rb-form .rb-preview-chip[data-pattern="english-to"] .pat-tag { background: rgba(46, 138, 100, 0.15); color: var(--pat-eng-to); }
.rb-form .rb-preview-chip[data-pattern="natural"] .pat-tag,
.rb-form .rb-preview-chip[data-pattern="empty"] .pat-tag { background: var(--pg-soft); color: var(--pg-mute); }
.rb-form .rb-preview-chip .pat-msg { color: var(--pg-text); }
.rb-form .rb-preview-chip .pat-old { color: var(--pat-old); font-weight: 600; }
.rb-form .rb-preview-chip .pat-new { color: var(--pat-new); font-weight: 600; }

/* tooltip */
.rb-tooltip {
  position: absolute;
  z-index: 70;
  background: #1a1f3a;
  color: #fff;
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 6px;
  max-width: 240px;
  pointer-events: none;
  box-shadow: 0 6px 18px -6px rgba(0, 0, 0, 0.35);
}
.rb-tooltip::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 16px;
  width: 8px; height: 8px;
  background: #1a1f3a;
  transform: rotate(45deg);
}