h1 {
  margin-top: 32px;
  margin-bottom: 8px;
  font-size: 2rem;
}

.lede {
  color: var(--muted);
  margin-top: 0;
  margin-bottom: 28px;
  max-width: 60ch;
}

.tool {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}

.pattern-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.pattern-slash {
  color: var(--muted);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 1.1rem;
}

#pattern {
  flex: 1 1 240px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.95rem;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  color: var(--ink);
}

.flag-label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.95rem;
  color: var(--ink);
}

.flag-label input { width: auto; margin: 0; }

.hint {
  color: #c0392b;
  font-size: 0.85rem;
  margin: 0 0 16px;
}

label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  display: block;
  margin-bottom: 6px;
  margin-top: 16px;
}

textarea {
  width: 100%;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.9rem;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  color: var(--ink);
  resize: vertical;
}

.highlighted {
  margin-top: 16px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.9rem;
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.6;
}

.highlighted mark {
  background: #fde68a;
  border-radius: 3px;
  padding: 0 1px;
}

.matches {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  max-height: 260px;
  overflow: auto;
}

.match-row {
  padding: 8px 12px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--line);
}

.match-row:last-child { border-bottom: none; }

.match-row .match-index { color: var(--muted); margin-right: 8px; }
.match-row .match-groups { color: var(--muted); display: block; margin-top: 4px; }

.matches-empty {
  padding: 16px;
  color: var(--muted);
  font-size: 0.9rem;
}

.faq { margin-top: 48px; max-width: 70ch; }

.faq h2 { font-size: 1.3rem; margin-top: 32px; }

details {
  border-bottom: 1px solid var(--line);
  padding: 12px 0;
}

details summary {
  cursor: pointer;
  font-weight: 600;
}