:root{--bg:#f6f8fb;--paper:#fff;--ink:#172033;--muted:#64748b;--line:#dbe3ee;--accent:#2457d6;--accent2:#0f766e;--nav:#111827;--nav2:#1f2937;--code:#0b1220;--warn:#92400e;--danger:#991b1b}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font:15.5px/1.62 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg)}
.sidebar{position:fixed;left:0;top:0;bottom:0;width:286px;background:var(--nav);color:#d7deea;padding:22px 18px;overflow:auto;z-index:10}.brand{display:flex;gap:11px;align-items:center;margin-bottom:7px}.brand-mark{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:9px;background:#fff;color:#111827;font-weight:800}.brand b{display:block;color:#fff;font-size:17px}.brand small{display:block;color:#9ca3af}.version{font:12px/1.4 ui-monospace,SFMono-Regular,Consolas,monospace;color:#9ca3af;margin:0 0 18px 49px}.search{position:relative;margin-bottom:16px}.search input{width:100%;border:1px solid #374151;background:#0b1220;color:#fff;border-radius:8px;padding:9px 10px;outline:none}.search input:focus{border-color:#6ea0ff}.search #search-results{display:none;position:absolute;left:0;right:0;top:42px;background:#fff;color:#111827;border:1px solid var(--line);border-radius:8px;box-shadow:0 12px 30px #0004;max-height:360px;overflow:auto;z-index:30}.search #search-results a{display:block;padding:8px 10px;border-bottom:1px solid #edf1f6;text-decoration:none;color:#111827}.search #search-results a:hover{background:#f3f6fb}.search #search-results small{display:block;color:#64748b}.nav-group{margin:17px 0}.nav-label{color:#6b7280;text-transform:uppercase;font-weight:700;font-size:10px;letter-spacing:.12em;margin:0 8px 6px}.sidebar nav a{display:block;color:#cbd5e1;text-decoration:none;padding:6px 9px;border-radius:6px;margin:1px 0;font-size:13.5px}.sidebar nav a:hover{background:#1f2937;color:#fff}.sidebar nav a.active{background:#263b66;color:#fff;font-weight:650}
main{margin-left:286px;max-width:1260px;padding:30px 48px 70px}.page-header{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;border-bottom:1px solid var(--line);padding-bottom:19px;margin-bottom:26px}.eyebrow{text-transform:uppercase;letter-spacing:.1em;color:var(--accent);font-size:11px;font-weight:800}.page-header h1{font-size:32px;line-height:1.15;margin:5px 0 0}.top-ref{color:var(--accent);text-decoration:none;border:1px solid #cbd8f8;background:#fff;padding:7px 10px;border-radius:7px;white-space:nowrap}article{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:30px 36px;box-shadow:0 2px 8px #1720330a}h2{font-size:23px;line-height:1.25;margin:36px 0 12px;padding-top:2px;border-top:1px solid #edf1f6;padding-top:28px}h2:first-child{margin-top:0;border-top:0;padding-top:0}h3{font-size:18px;margin:26px 0 8px}h4{font-size:15px;margin:20px 0 7px}p{margin:9px 0 14px}a{color:var(--accent)}code{font-family:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;font-size:.92em;background:#eef2f7;border-radius:4px;padding:.1em .28em}.code{background:var(--code);color:#e5edf9;border-radius:9px;padding:15px 17px;overflow:auto;line-height:1.5;border:1px solid #1f2b3f}.code code{background:none;padding:0;color:inherit}.source{color:var(--muted);font-size:12px}.source code{background:transparent}.callout{border-left:4px solid var(--accent);background:#f2f6ff;padding:11px 14px;margin:16px 0;border-radius:0 7px 7px 0}.callout.warning{border-color:#d97706;background:#fff7ed}.callout.important{border-color:#0f766e;background:#f0fdfa}.callout.danger{border-color:#b91c1c;background:#fef2f2}.callout strong{display:block;margin-bottom:3px}.callout div p:first-child{margin-top:0}.callout div p:last-child{margin-bottom:0}.table-wrap{overflow:auto;margin:13px 0 20px}table{border-collapse:collapse;width:100%;font-size:14px}th,td{border:1px solid var(--line);padding:8px 10px;vertical-align:top;text-align:left}th{background:#f3f6fa;font-weight:700}.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:18px 0 25px}.metric{border:1px solid var(--line);background:#f8fafc;border-radius:9px;padding:14px}.metric b{display:block;font-size:25px;color:#0f285c}.metric span{color:var(--muted);font-size:12px}.flow{display:flex;flex-wrap:wrap;align-items:center;gap:7px;margin:16px 0}.flow span{background:#eef3fb;border:1px solid #cbd8e9;border-radius:7px;padding:7px 9px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px}.flow i{font-style:normal;color:#8290a4}.symbol-card{border:1px solid var(--line);border-radius:9px;padding:14px 16px;margin:12px 0;background:#fcfdff}.symbol-card h3{margin:0 0 8px;font-size:16px}.symbol-card .code{margin:8px 0;padding:10px 12px}.symbol-card .comment{white-space:pre-wrap;color:#334155;font-size:13px}.symbol-card:target{outline:3px solid #b9cdfc;background:#f4f7ff}.family-links{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0 18px}.family-links a{font-size:12px;text-decoration:none;border:1px solid #ccd8e8;border-radius:999px;padding:4px 8px;background:#f8fafc}.tag{display:inline-block;padding:2px 6px;border-radius:999px;background:#e8eefb;color:#244475;font-size:11px;font-weight:700}.status-good{color:#166534}.status-limit{color:#9a3412}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:20px}.toc{columns:2;column-gap:30px}.toc a{display:block;break-inside:avoid;padding:2px 0}.kbd{font-family:ui-monospace,monospace;border:1px solid #cbd5e1;border-bottom-width:2px;background:#fff;border-radius:4px;padding:1px 5px}footer{color:#6b7280;font-size:12px;padding:22px 4px}.small{font-size:13px;color:#475569}.muted{color:var(--muted)}.badge-new{display:inline-block;background:#dcfce7;color:#166534;border:1px solid #bbf7d0;font-size:11px;padding:1px 6px;border-radius:999px;margin-left:5px}
@media(max-width:900px){.sidebar{position:relative;width:auto;height:auto}.version{margin-left:0}.sidebar nav{columns:2}.search #search-results{position:fixed;left:10px;right:10px;top:120px}main{margin-left:0;padding:20px}.page-header{display:block}.top-ref{display:inline-block;margin-top:12px}article{padding:22px}.metric-grid{grid-template-columns:repeat(2,1fr)}.two-col{grid-template-columns:1fr}.toc{columns:1}}
@media print{.sidebar,.top-ref{display:none}main{margin:0;max-width:none;padding:0}article{border:0;box-shadow:none;padding:0}.page-header{margin-top:0}.code{white-space:pre-wrap;word-break:break-word}}

/* GX-TXT site integration: development status layer. */
.dev-integrated-strip{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin:0 0 18px;padding:11px 14px;border:1px solid #fed7aa;border-left:5px solid #d97706;border-radius:8px;background:#fff7ed;color:#7c2d12;font-size:13px}
.dev-integrated-strip strong{font-size:12px;letter-spacing:.07em;text-transform:uppercase;background:#d97706;color:#fff;padding:3px 7px;border-radius:999px}
.dev-integrated-strip a{margin-left:auto;color:#9a3412;font-weight:800;text-decoration:none}.dev-integrated-strip a:hover{text-decoration:underline}
.dev-sidebar-back{display:block;margin:0 0 14px;padding:7px 9px;border:1px solid #4b5563;border-radius:7px;background:#182234;color:#f9fafb!important;text-decoration:none!important;font-size:12px;font-weight:750}.dev-sidebar-back:hover{background:#243047!important}
@media(max-width:700px){.dev-integrated-strip a{margin-left:0;width:100%}}
@media print{.dev-integrated-strip,.dev-sidebar-back{display:none!important}}