/* ── Help page styles ── */
.help-layout {
  max-width: 860px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.help-header {
  margin-bottom: 32px;
}
.help-header .breadcrumb {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.help-header h1 {
  font-size: 24px;
  font-weight: 900;
  letter-spacing: 1px;
}
.help-header .subtitle {
  font-size: 13px;
  color: var(--text-sub);
  margin-top: 4px;
}

/* ── TOC ── */
.help-toc {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 32px;
}
.help-toc h4 {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.help-toc ol {
  list-style: none;
  counter-reset: toc;
  padding: 0;
}
.help-toc ol li {
  counter-increment: toc;
  padding: 4px 0;
}
.help-toc ol li::before {
  content: counter(toc) ".";
  display: inline-block;
  width: 24px;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-blue);
}
.help-toc ol li a {
  font-size: 13px;
}

/* ── Sections ── */
.help-section {
  margin-bottom: 36px;
}
.help-section h2 {
  font-size: 17px;
  font-weight: 900;
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--accent-blue);
  display: inline-block;
}
.help-section h3 {
  font-size: 14px;
  font-weight: 700;
  margin: 16px 0 8px;
  color: var(--text);
}
.help-section p {
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-sub);
  margin-bottom: 8px;
}

/* ── Annotated screenshot (diagram) ── */
.diagram {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px;
  margin: 16px 0;
  overflow-x: auto;
}
.diagram svg {
  display: block;
  margin: 0 auto;
}
.diagram .caption {
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 8px;
}

/* ── Feature list ── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 12px 0;
}
.feature-item {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 14px 16px;
}
.feature-item .feat-icon {
  font-size: 20px;
  margin-bottom: 6px;
}
.feature-item .feat-title {
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 4px;
}
.feature-item .feat-desc {
  font-size: 12px;
  color: var(--text-sub);
  line-height: 1.6;
}

/* ── Key table ── */
.key-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  margin: 12px 0;
}
.key-table th {
  background: #f0f0f6;
  font-weight: 700;
  padding: 8px 12px;
  text-align: left;
  border-bottom: 2px solid var(--card-border);
}
.key-table td {
  padding: 8px 12px;
  border-bottom: 1px solid #eee;
}
.key-table tr:hover { background: #f7f7fb; }

kbd {
  display: inline-block;
  padding: 2px 7px;
  border: 1px solid #ccc;
  border-radius: 4px;
  background: #f8f8f8;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  box-shadow: 0 1px 0 #bbb;
}

/* ── Callout ── */
.callout {
  border-left: 4px solid var(--accent-blue);
  background: #eef4ff;
  padding: 12px 16px;
  border-radius: 0 8px 8px 0;
  margin: 12px 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text);
}
.callout.warn {
  border-left-color: var(--accent-orange);
  background: #fff8f0;
}
.callout.success {
  border-left-color: var(--accent-green);
  background: #f0fff8;
}