/* Docs in a GitBook-like layout: section sidebar, one page per section, outline on the right. */
.gb { display: grid; grid-template-columns: 260px minmax(0, 1fr) 220px; max-width: 1360px; margin: 0 auto; min-height: calc(100dvh - 64px); }
.gb-side { position: sticky; top: 64px; align-self: start; height: calc(100dvh - 64px); overflow-y: auto; padding: 24px 16px 40px 20px; border-right: 1px solid var(--line); }
.gb-search { position: relative; margin-bottom: 18px; }
.gb-search input { width: 100%; background: var(--bg); border: 1px solid var(--line2); border-radius: 7px; color: var(--text); font: 12px var(--font); padding: 9px 34px 9px 11px; }
.gb-search input:focus { outline: none; border-color: var(--accent); }
.gb-search input::-webkit-search-cancel-button { display: none; }
.gb-search input:not(:placeholder-shown) + kbd { display: none; }
.gb-search kbd { position: absolute; right: 8px; top: 7px; font: 11px var(--font); color: var(--dim); border: 1px solid var(--line2); border-radius: 4px; padding: 1px 6px; }
.gb-results { position: absolute; left: 0; right: 0; top: 42px; z-index: 30; background: var(--panel); border: 1px solid var(--line2); border-radius: 8px; box-shadow: 0 18px 50px #0008; max-height: 60vh; overflow-y: auto; padding: 6px; }
.gb-results a { display: block; padding: 8px 10px; border-radius: 6px; color: var(--text); font-size: 12px; line-height: 1.5; }
.gb-results a:hover, .gb-results a.on { background: #53c6aa14; }
.gb-results a small { display: block; color: var(--muted); font-size: 11px; }
.gb-results mark { background: #d6b36a33; color: var(--amber); border-radius: 2px; }
.gb-results .none { padding: 10px; color: var(--muted); font-size: 12px; }
.gb-nav a { display: block; padding: 6px 10px; margin: 1px 0; border-radius: 6px; color: var(--muted); font-size: 12.5px; line-height: 1.45; border-left: 2px solid transparent; }
.gb-nav a:hover { color: var(--text); background: #ffffff08; }
.gb-nav a.on { color: var(--accent-t); background: #53c6aa12; border-left-color: var(--accent); }
.gb-group { margin: 18px 0 4px 10px; font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--dim); }
.gb-main { padding: 34px 48px 60px; max-width: 860px; width: 100%; }
.public-page .gb-main.doc { max-width: 860px; }
.gb-crumb { font-size: 11px; color: var(--dim); margin-bottom: 8px; letter-spacing: .04em; }
.gb-crumb a { color: var(--dim); }
.gb-crumb span:not(:empty)::before { content: "›"; margin: 0 8px; }
.gb.js .gb-page { display: none; }
.gb.js .gb-page.on { display: block; animation: gbin .18s ease-out; }
@keyframes gbin { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
.public-page .gb-main h1 { margin: 6px 0 16px !important; font-size: clamp(28px, 3.4vw, 40px) !important; }
.public-page .gb-main h2 { margin-top: 6px; padding-top: 0; border-top: 0; font-size: clamp(26px, 3vw, 34px); }
.gb:not(.js) .gb-page + .gb-page { margin-top: 50px; padding-top: 30px; border-top: 1px solid var(--line); }
.public-page .gb-main .gb-page > p, .public-page .gb-main .gb-page > ul { font-size: 13px; line-height: 1.9; color: var(--body); }
.gb-main h3 { scroll-margin-top: 84px; }
.gb-main h3 a.gb-anchor, .gb-main h2 a.gb-anchor { opacity: 0; margin-left: 8px; color: var(--dim); font-weight: 400; }
.gb-main h3:hover a.gb-anchor, .gb-main h2:hover a.gb-anchor { opacity: 1; }
.gb-hint { border: 1px solid #53c6aa44; border-left: 3px solid var(--accent); background: #53c6aa0c; border-radius: 7px; padding: 14px 16px; font-size: 12.5px; line-height: 1.8; color: var(--body); margin: 18px 0 26px; }
.gb-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.gb-card { display: flex; flex-direction: column; gap: 6px; padding: 16px; border: 1px solid var(--line); border-radius: 9px; background: var(--panel); color: var(--text); transition: border-color .15s, transform .08s; }
.gb-card:hover { border-color: #53c6aa77; transform: translateY(-1px); }
.gb-card b { font-size: 13.5px; font-weight: 600; }
.gb-card span { font-size: 11.5px; line-height: 1.6; color: var(--muted); }
.gb-card .gb-card-g { font-size: 9.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--dim); }
.gb-pn { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 48px; }
.gb-pn a { display: block; padding: 14px 16px; border: 1px solid var(--line); border-radius: 9px; color: var(--text); font-size: 13.5px; }
.gb-pn a:hover { border-color: #53c6aa77; }
.gb-pn a small { display: block; color: var(--dim); font-size: 11px; margin-bottom: 3px; }
.gb-pn a.next { text-align: right; grid-column: 2; }
.gb-meta { margin-top: 28px; padding-top: 16px; border-top: 1px solid var(--line); font-size: 11px; color: var(--dim); }
.gb-toc { position: sticky; top: 64px; align-self: start; max-height: calc(100dvh - 64px); overflow-y: auto; padding: 38px 20px 30px 8px; font-size: 12px; }
.gb-toc-h { font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--dim); margin-bottom: 10px; }
.gb-toc a { display: block; padding: 4px 0 4px 12px; border-left: 1px solid var(--line); color: var(--muted); line-height: 1.5; }
.gb-toc a:hover { color: var(--text); }
.gb-toc a.on { color: var(--accent-t); border-left-color: var(--accent); }
.gb-toc .empty { color: var(--dim); font-size: 11px; }
.gb-menu { display: none; }
.gb-body footer { border-top: 1px solid var(--line); }

@media (max-width: 1180px) { .gb { grid-template-columns: 240px minmax(0, 1fr); } .gb-toc { display: none; } }
@media (max-width: 860px) {
  .gb { display: block; }
  .gb-menu { display: block; position: sticky; top: 64px; z-index: 15; width: 100%; text-align: left; background: var(--panel); color: var(--text); border: 0; border-bottom: 1px solid var(--line); padding: 12px 16px; font: 600 12px var(--font); cursor: pointer; }
  .gb-side { display: none; position: fixed; z-index: 25; top: 64px; left: 0; bottom: 0; width: min(320px, 86vw); height: calc(100dvh - 64px); max-height: none; background: var(--bg); border-right: 1px solid var(--line2); box-shadow: 20px 0 60px #0009; }
  .gb-side.open { display: block; }
  .gb-main { padding: 22px 16px 48px; }
  .gb-main h3 { scroll-margin-top: 124px; }
  .gb-pn { grid-template-columns: 1fr; }
  .gb-pn a.next { grid-column: 1; }
}
@media (prefers-reduced-motion: reduce) { .gb.js .gb-page.on { animation: none; } }

/* tutorial page (/tutorial): screenshots, numbered steps, tips */
.tut-shot { margin: 18px 0 22px; }
.tut-shot img { display: block; width: 100%; height: auto; border: 1px solid var(--line2); border-radius: 8px; background: var(--panel); }
.tut-shot a { display: block; }
.tut-shot figcaption { font-size: 11px; color: var(--muted); margin-top: 8px; }
.gb-page[data-page="phone"] .tut-shot { max-width: 320px; }
.tut-steps { padding-left: 22px; margin: 14px 0 18px; }
.tut-steps li { margin: 0 0 10px; line-height: 1.8; padding-left: 4px; }
.tut-steps li::marker { color: var(--accent); font-weight: 600; }
.tut-tip { border-left: 3px solid var(--accent); background: #53c6aa10; padding: 10px 14px; border-radius: 0 6px 6px 0; font-size: 12.5px; line-height: 1.8; }
.tut-tip b { color: var(--accent); margin-right: 6px; }