/* Helix GTM guides: two-column sections (text left, tables and tool links right). Extends helix.css (B2). */
.gd-page { --h2: clamp(30px, 3vw, 46px); }
.gd-page .hx-section > h2 { max-width: 28ch; }
.gd-row { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(24px, 3.2vw, 56px); align-items: start; margin: 0 0 clamp(28px, 3vw, 44px); }
.gd-row:last-child { margin-bottom: 0; }
.gd-row.gd-solo { grid-template-columns: minmax(0, 1fr); }
.gd-text > h3:first-child { margin-top: 0; }
.gd-text > p:first-child, .gd-text > ol:first-child, .gd-text > ul:first-child { margin-top: 0; }
.gd-side { position: sticky; top: 96px; display: flex; flex-direction: column; gap: 20px; }
.gd-side .hx-table { margin: 0; }
.gd-side table { font-size: 15px; }
.gd-side .hx-table th, .gd-side .hx-table td { padding: 8px 10px; }
.gd-cap { font: 600 12px/1.3 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin: 0 0 6px; }
.gd-card { background: var(--white); color: var(--ink); border: 1.5px solid var(--edge); border-top: 6px solid var(--ox); box-shadow: 4px 4px 0 var(--shadow); padding: 16px 18px; }
.gd-card h3 { margin: 10px 0 8px; font-size: 20px; }
.gd-card ul { list-style: none; margin: 0; padding: 0; }
.gd-card li { padding: 10px 0; border-top: 1px solid var(--line); }
.gd-card li:first-child { border-top: 0; padding-top: 4px; }
.gd-card li a { font-weight: 600; display: inline-flex; min-height: 32px; align-items: center; }
.gd-card li span { display: block; color: var(--muted); font-size: 15px; line-height: 1.45; }
.gd-note { border-left: 4px solid var(--signal); padding: 6px 14px; color: var(--muted); font-size: 15px; line-height: 1.5; }
@media (max-width: 900px) {
  .gd-row { grid-template-columns: minmax(0, 1fr); }
  .gd-side { position: static; }
}