.tool-hero { padding-block: var(--space-6) var(--space-5); border-bottom: 1px solid var(--line); }
.tool-hero h1 { margin-bottom: 10px; font-size: clamp(1.9rem, 3.4vw, 2.7rem); }
.tool-hero .lede { margin: 0; }
.tool-hero__meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: var(--space-4); }

.tool-layout {
  display: grid;
  gap: var(--space-5);
  align-items: start;
  padding-block: var(--space-5);
  grid-template-columns: minmax(0, 1fr);
}
.tool-layout--split { grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); }
@media (max-width: 960px) { .tool-layout--split { grid-template-columns: minmax(0, 1fr); } }

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}
.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--line);
}
.panel__head h2, .panel__head h3 {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 500;
}
.panel__tools { display: flex; gap: 6px; flex-wrap: wrap; }

.tool-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--line);
}
.tool-actions .spacer { margin-left: auto; }

.result { min-height: 120px; }
.result__empty {
  display: grid;
  place-items: center;
  min-height: 120px;
  padding: var(--space-5);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-sm);
  color: var(--ink-mute);
  font-size: .88rem;
  text-align: center;
}
.result__status { font-size: .8rem; color: var(--ink-mute); margin-bottom: 10px; display: flex; align-items: center; gap: 6px; }
.result__status::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 999px;
  background: var(--accent);
}
.result__status[data-state="error"] { color: var(--danger); }
.result__status[data-state="error"]::before { background: var(--danger); }
.result__status[data-state="busy"]::before { background: var(--warning); animation: pulse 1s infinite alternate; }
@keyframes pulse { from { opacity: .3; } to { opacity: 1; } }

.output-block {
  margin: 0;
  padding: 14px 16px;
  background: var(--code-bg);
  color: var(--code-ink);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: .8rem;
  line-height: 1.65;
  overflow: auto;
  max-height: 460px;
  white-space: pre-wrap;
  word-break: break-word;
  border: 1px solid color-mix(in srgb, var(--code-bg) 60%, #000);
}
.output-block:focus-visible { outline: 2px solid var(--accent); }

.stat-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  margin-bottom: var(--space-4);
}
.stat {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
}
.stat__label { font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-mute); font-family: var(--font-mono); }
.stat__value { font-family: var(--font-display); font-size: 1.45rem; font-weight: 600; line-height: 1.15; margin-top: 2px; letter-spacing: -.02em; }
.stat__value.is-ok { color: var(--ok); }
.stat__value.is-warn { color: var(--warning); }
.stat__value.is-bad { color: var(--danger); }

.issue-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.issue {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  font-size: .87rem;
  padding: 9px 12px;
  border-radius: var(--radius-xs);
  background: var(--surface-2);
  color: var(--ink-soft);
}
.issue::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 999px;
  margin-top: 7px;
  flex-shrink: 0;
  background: var(--ink-mute);
}
.issue--error { background: var(--danger-soft); }
.issue--error::before { background: var(--danger); }
.issue--warning { background: var(--warning-soft); }
.issue--warning::before { background: var(--warning); }
.issue--success { background: var(--ok-soft); }
.issue--success::before { background: var(--ok); }
.issue--info { background: var(--accent-soft); }
.issue--info::before { background: var(--accent); }

.result-section { margin-top: var(--space-5); }
.result-section > h3 {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 10px;
  font-weight: 500;
}
.result-note { font-size: .8rem; color: var(--ink-mute); margin-top: var(--space-4); }

.tool-body { padding-block: var(--space-6) 0; }
.tool-body .prose h2 { font-size: 1.5rem; }
.guide-grid { display: grid; gap: var(--space-6); grid-template-columns: 1.1fr .9fr; }
@media (max-width: 860px) { .guide-grid { grid-template-columns: 1fr; } }

.steps { list-style: none; counter-reset: s; padding: 0; margin: 0; display: grid; gap: 14px; }
.steps li {
  counter-increment: s;
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 12px;
  align-items: start;
  margin: 0;
  font-size: .93rem;
  color: var(--ink-soft);
}
.steps li::before {
  content: counter(s);
  width: 26px; height: 26px;
  display: grid; place-items: center;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-size: .72rem;
}

.example-block { display: grid; gap: 10px; }
.example-block h4 {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--ink-mute);
  font-weight: 500;
}
.example-block pre {
  margin: 0;
  padding: 12px 14px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: .78rem;
  overflow: auto;
  max-height: 220px;
  white-space: pre-wrap;
}

/* PDF tools: file queue and per-page download list. */
.pdf-tool { display: grid; gap: 14px; }
.pdf-file-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
  max-height: 260px;
  overflow: auto;
}
.pdf-file {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  font-size: .85rem;
}
.pdf-file__index {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--ink-mute);
}
.pdf-file__name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pdf-file__size { font-family: var(--font-mono); font-size: .72rem; color: var(--ink-mute); }
.pdf-file__tools { display: flex; gap: 2px; }
.pdf-file__tools .btn { padding: 2px 7px; line-height: 1.2; }
.pdf-controls { display: grid; gap: 12px; }
.pdf-downloads {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
  max-height: 240px;
  overflow: auto;
}