/* ---------- page ---------- */
.lg-page {
  scrollbar-gutter: stable;
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding: 32px 20px 72px;
  width: 100%;
  max-width: 880px;
  margin: 0 auto;
  box-sizing: border-box;
}
.lg-page section { width: 100%; box-sizing: border-box; }

/* ---------- hero ---------- */
.lg-hero { display: flex; flex-direction: column; gap: 12px; }
.lg-eyebrow {
  display: flex; align-items: center; gap: 8px;
  font-size: 10.5px; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text-5);
}
.lg-eyebrow span { color: var(--accent); }
.lg-title {
  margin: 0;
  font-size: 34px; font-weight: 700; line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text);
}
.lg-lede {
  margin: 0; max-width: 680px;
  font-size: 13.5px; line-height: 1.75;
  color: var(--text-4);
}
.lg-meta {
  display: flex; flex-wrap: wrap; gap: 8px 18px;
  padding-top: 4px;
  font-size: 11.5px; color: var(--text-5);
}
.lg-meta b { color: var(--text-3); font-weight: 600; }

/* ---------- summary callout ---------- */
.lg-summary {
  padding: 18px 20px;
  background: var(--bg-sunken);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 10px;
}
.lg-summary h2 {
  margin: 0 0 10px;
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent);
}
.lg-summary ul { margin: 0; padding-left: 18px; display: flex; flex-direction: column; gap: 7px; }
.lg-summary li { font-size: 13px; line-height: 1.6; color: var(--text-3); }
.lg-summary p {
  margin: 12px 0 0;
  font-size: 11.5px; line-height: 1.6;
  color: var(--text-5);
}

/* ---------- table of contents ---------- */
.lg-toc {
  padding: 16px 20px;
  background: var(--panel-bg);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.lg-toc h2 {
  margin: 0 0 10px;
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-5);
}
.lg-toc ol {
  margin: 0; padding: 0; list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 4px 20px;
  counter-reset: lgtoc;
}
.lg-toc li { counter-increment: lgtoc; }
.lg-toc a {
  display: flex; gap: 9px;
  padding: 5px 0;
  font-size: 12.5px; line-height: 1.5;
  color: var(--text-4);
  text-decoration: none;
}
.lg-toc a:before {
  content: counter(lgtoc);
  flex: 0 0 auto;
  min-width: 16px;
  font-variant-numeric: tabular-nums;
  color: var(--text-6);
}
.lg-toc a:hover { color: var(--accent); }

/* ---------- body ---------- */
.lg-body { display: flex; flex-direction: column; gap: 26px; counter-reset: lgsec; }
.lg-sec { scroll-margin-top: 90px; }
.lg-sec > h2 {
  counter-increment: lgsec;
  display: flex; gap: 10px;
  margin: 0 0 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 17px; font-weight: 700; line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text);
}
.lg-sec > h2:before {
  content: counter(lgsec) ".";
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.lg-sec.lg-nonum > h2:before { content: none; }
.lg-sec h3 {
  margin: 18px 0 8px;
  font-size: 13.5px; font-weight: 700;
  color: var(--text-2);
}
.lg-sec p {
  margin: 0 0 12px;
  font-size: 13.5px; line-height: 1.75;
  color: var(--text-4);
}
.lg-sec p:last-child { margin-bottom: 0; }
.lg-sec ul { margin: 0 0 12px; padding-left: 20px; display: flex; flex-direction: column; gap: 8px; }
.lg-sec li { font-size: 13.5px; line-height: 1.7; color: var(--text-4); }
.lg-sec li strong, .lg-sec p strong { color: var(--text-2); font-weight: 600; }
.lg-sec a { color: var(--accent); }
.lg-sec a:hover { text-decoration: underline; }
.lg-sec code {
  padding: 1px 5px;
  border-radius: 4px;
  background: var(--bg-sunken);
  border: 1px solid var(--line-input);
  font-size: 12px;
  color: var(--text-2);
}

/* ---------- definition list ---------- */
.lg-defs { display: flex; flex-direction: column; gap: 10px; margin: 0 0 12px; }
.lg-def {
  display: grid;
  grid-template-columns: minmax(0, 140px) minmax(0, 1fr);
  gap: 4px 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}
.lg-def:last-child { border-bottom: 0; padding-bottom: 0; }
.lg-def dt { font-size: 13px; font-weight: 600; color: var(--text-2); }
.lg-def dd { margin: 0; font-size: 13px; line-height: 1.7; color: var(--text-4); }

/* ---------- emphasis block ---------- */
.lg-note {
  padding: 14px 16px;
  margin: 0 0 12px;
  background: var(--bg-sunken);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 13px; line-height: 1.7;
  color: var(--text-3);
}
.lg-note strong { color: var(--text); }

/* ---------- contact / footer ---------- */
.lg-contact {
  display: flex; flex-direction: column; gap: 10px;
  padding: 22px 24px;
  background: var(--bg-sunken);
  border: 1px solid var(--line);
  border-radius: 12px;
}
.lg-contact h2 {
  margin: 0;
  font-size: 15px; font-weight: 700;
  color: var(--text);
}
.lg-contact p { margin: 0; font-size: 13px; line-height: 1.7; color: var(--text-4); }
.lg-contact a { color: var(--accent); }
.lg-contact address {
  font-style: normal;
  font-size: 12.5px; line-height: 1.7;
  color: var(--text-5);
}

@media (max-width: 720px) {
  .lg-title { font-size: 27px; }
  .lg-def { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .lg-toc ol { grid-template-columns: minmax(0, 1fr); }
}