/* GitHub Primer-inspired palette; dark mode follows the system setting. */
:root{--fg:#1f2328;--muted:#59636e;--bg:#fff;--subtle:#f6f8fa;--border:#d1d9e0;--accent:#0969da;--accent-subtle:#ddf4ff;--success:#1f883d;--success-hover:#1c8139;--success-fg:#fff;--btn:#f6f8fa;--btn-hover:#eff2f5;--top:#f6f8fa;--attention:#fff8c5;--attention-border:#d4a72c66;--shadow:0 1px 0 #1f23280a;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans",Helvetica,Arial,sans-serif;color:var(--fg);background:var(--bg);font-synthesis:none;-webkit-font-smoothing:antialiased}
@media(prefers-color-scheme:dark){:root{--fg:#f0f6fc;--muted:#9198a1;--bg:#0d1117;--subtle:#151b23;--border:#3d444d;--accent:#4493f8;--accent-subtle:#388bfd1a;--success:#238636;--success-hover:#29903b;--btn:#212830;--btn-hover:#262c36;--top:#010409;--attention:#bb800926;--attention-border:#bb800966;--shadow:none}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);font-size:14px;line-height:1.5}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
code{font-family:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;font-size:85%;background:var(--subtle);border:1px solid var(--border);border-radius:6px;padding:.1em .4em}
.container{max-width:1080px;margin:0 auto;padding:0 24px}
svg{fill:currentColor}

.topbar{background:var(--top);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}
.topbar-inner{display:flex;align-items:center;gap:24px;height:62px}
.brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:600;color:var(--fg)}.brand:hover{text-decoration:none}
.mark{width:28px;height:28px;fill:var(--fg)}.mark path{fill:none;stroke:var(--fg);stroke-width:1.4;opacity:.55}
.topnav{display:flex;gap:4px;flex:1}.topnav a{color:var(--fg);padding:6px 10px;border-radius:6px;font-size:14px}.topnav a:hover{background:var(--btn-hover);text-decoration:none}
.topbar-right{display:flex;align-items:center;gap:12px}
.label{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);border-radius:999px;padding:2px 10px;font-size:12px;font-weight:500;color:var(--muted);white-space:nowrap}.label:hover{color:var(--accent);text-decoration:none}
.dot{width:8px;height:8px;border-radius:50%;background:var(--success)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:32px;padding:0 14px;font:inherit;font-size:14px;font-weight:500;color:var(--fg);background:var(--btn);border:1px solid var(--border);border-radius:6px;cursor:pointer;white-space:nowrap;box-shadow:var(--shadow);transition:background .12s}
.btn:hover{background:var(--btn-hover);text-decoration:none}.btn svg{width:16px;height:16px}
.btn-sm{height:28px;padding:0 10px;font-size:12px}
.btn-lg{height:40px;padding:0 20px;font-size:16px}
.btn-primary{background:var(--success);border-color:#1f232826;color:var(--success-fg)}.btn-primary:hover{background:var(--success-hover)}
.btn[aria-disabled=true]{background:var(--subtle);color:var(--muted);border-color:var(--border);cursor:not-allowed;pointer-events:none;box-shadow:none}

.hero{border-bottom:1px solid var(--border);padding:72px 0 56px;background:radial-gradient(1000px 400px at 50% -120px,var(--accent-subtle),transparent)}
.eyebrow{margin:0 0 16px;font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
h1{font-size:clamp(34px,5.4vw,56px);line-height:1.15;letter-spacing:-.02em;margin:0 0 20px;font-weight:600}
.accent{background:linear-gradient(90deg,#0969da,#8250df);-webkit-background-clip:text;background-clip:text;color:transparent}
@media(prefers-color-scheme:dark){.accent{background-image:linear-gradient(90deg,#4493f8,#ab7df8)}}
.lead{font-size:18px;color:var(--muted);max-width:760px;margin:0 0 28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.flow{display:flex;align-items:stretch;margin-top:44px;gap:0}
.node{flex:1;border:1px solid var(--border);border-radius:6px;background:var(--bg);padding:14px 16px;display:grid;gap:2px}.node strong{font-size:14px}.node span{font-size:12px;color:var(--muted)}
.node-accent{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-subtle)}
.edge{flex:0 0 120px;display:flex;align-items:center;justify-content:center;position:relative}.edge:before{content:"";position:absolute;left:8px;right:8px;top:50%;border-top:1px dashed var(--muted)}.edge span{position:relative;background:var(--bg);font-size:11px;color:var(--muted);padding:0 6px;font-family:ui-monospace,monospace}

section.container{padding-top:48px;padding-bottom:8px;scroll-margin-top:72px}
.section-heading{display:flex;align-items:center;gap:12px;font-size:24px;font-weight:600;margin:0 0 20px;padding-bottom:8px;border-bottom:1px solid var(--border)}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--accent);color:#fff;font-size:14px}
.grid{display:grid;gap:16px}.features{grid-template-columns:repeat(3,1fr)}.two{grid-template-columns:repeat(2,1fr)}.three{grid-template-columns:repeat(3,1fr)}
.box{border:1px solid var(--border);border-radius:6px;background:var(--bg);overflow:hidden}
.box-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;background:var(--subtle);border-bottom:1px solid var(--border)}
.box-body{padding:16px}.box-body>p:first-child{margin-top:0}
.box-row{display:flex;justify-content:space-between;gap:16px;padding:12px 16px;border-top:1px solid var(--border);font-size:14px}.box-row:hover{background:var(--subtle)}.box-row a{font-weight:600}
.counter{font-size:12px;color:var(--muted);background:var(--btn-hover);border-radius:999px;padding:0 8px;line-height:20px}
.feature{padding:20px}.feature h3{font-size:16px;margin:10px 0 6px}.feature p{margin:0;color:var(--muted)}
.ficon{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:8px;background:var(--accent-subtle);color:var(--accent);font-size:18px}
.badge{font-family:ui-monospace,monospace;font-size:12px;color:var(--accent);border:1px solid var(--accent);border-radius:999px;padding:1px 8px}
.timeline{list-style:none;padding:0;margin:0}
.muted{color:var(--muted)}
.note{font-size:12px;color:var(--muted)}
.selectors{display:flex;gap:12px;margin:16px 0 4px}
label{display:grid;gap:6px;font-size:14px;font-weight:600;flex:1;min-width:0}
select{font:inherit;font-weight:400;font-size:14px;height:32px;padding:0 10px;border:1px solid var(--border);border-radius:6px;background:var(--subtle);color:var(--fg);width:100%}
select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:-1px;border-color:var(--accent)}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}
.flash{margin:12px 0;padding:12px 16px;font-size:13px;border:1px solid var(--attention-border);background:var(--attention);border-radius:6px}
.code{position:relative;margin:12px 0}
.code pre{margin:0;padding:16px 64px 16px 16px;overflow:auto;background:var(--subtle);border:1px solid var(--border);border-radius:6px;font:12px/1.6 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.copy-code{position:absolute;top:8px;right:8px;font:inherit;font-size:12px;padding:2px 8px;color:var(--fg);background:var(--btn);border:1px solid var(--border);border-radius:6px;cursor:pointer;opacity:.8}.copy-code:hover{opacity:1;background:var(--btn-hover)}
textarea{display:block;width:100%;height:150px;resize:vertical;border:1px solid var(--border);background:var(--subtle);color:var(--fg);border-radius:6px;padding:12px 16px;font:12px/1.7 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.status{margin-left:8px;color:var(--success);font-weight:600}
.footer{display:flex;justify-content:space-between;gap:16px;margin-top:56px;padding-top:24px;padding-bottom:40px;border-top:1px solid var(--border);font-size:12px;color:var(--muted)}

@media(max-width:860px){.topnav{display:none}.features,.three,.two{grid-template-columns:1fr 1fr}.two{grid-template-columns:1fr}.flow{flex-direction:column}.edge{flex:0 0 44px}.edge:before{left:50%;right:auto;top:6px;bottom:6px;border-top:0;border-left:1px dashed var(--muted)}}
@media(max-width:600px){.container{padding:0 16px}.topbar-inner{justify-content:space-between}.label{display:none}.hero{padding:44px 0 36px}.lead{font-size:16px}.features,.three{grid-template-columns:1fr}.selectors{flex-direction:column}.box-row{flex-direction:column;gap:2px}.footer{flex-direction:column}}