@font-face {
  font-family: "Space Grotesk";
  src: url("/fonts/space-grotesk.woff2") format("woff2");
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}
:root {
  --bg: #0b0e11;
  --bg-elev: #11151a;
  --bg-card: #151a20;
  --bg-soft: #1a2027;
  --line: rgba(148,163,184,.14);
  --text: #e8eaed;
  --muted: #9aa4ad;
  --faint: #717b85;
  --accent: #ffca28;
  --accent-2: #ffdf7a;
  --accent-3: #34d399;
  --warn: #fbbf24;
  --danger: #fb7185;
  --glow: rgba(255,202,40,.18);
  --radius: 18px;
  --font: "Space Grotesk",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono: ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --max: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: radial-gradient(1200px 600px at 10% -10%,rgba(255,202,40,.12),transparent 55%),radial-gradient(900px 500px at 90% 0%,rgba(255,223,122,.08),transparent 50%),radial-gradient(800px 400px at 50% 100%,rgba(52,211,153,.05),transparent 45%),var(--bg);
  line-height: 1.65;
  font-size: 17px;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.sitebar {
  position: sticky;
  top: 0;
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .8rem max(1.25rem,calc((100vw - var(--max))/2 + 1.25rem));
  background: rgba(11,14,17,.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.sitebar a { color: var(--muted); font-size: .84rem; }
.sitebar a:hover { color: var(--text); text-decoration: none; }
.sitebar .sitebrand { color: var(--text); font-weight: 700; letter-spacing: .02em; }
.sitebar .sitebrand span { color: var(--accent); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 1.25rem 5rem; }
.hero { position: relative; padding: 4.5rem 0 3rem; border-bottom: 1px solid var(--line); overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: auto -20% -40%; height: 280px; background: linear-gradient(90deg,transparent,var(--glow),transparent); filter: blur(40px); pointer-events: none; }
.kicker { display: inline-flex; align-items: center; gap: .5rem; font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); font-weight: 600; margin-bottom: 1rem; }
.kicker span { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); }
h1 { font-size: clamp(2.4rem,6vw,4.6rem); line-height: 1.04; letter-spacing: -.04em; margin: 0 0 1.2rem; font-weight: 700; max-width: 14ch; }
.hero-lead { font-size: 1.15rem; color: var(--muted); max-width: 63ch; margin: 0 0 1.75rem; }
.meta-row { display: flex; flex-wrap: wrap; gap: .6rem; }
.chip { font-size: .8rem; color: var(--muted); background: var(--bg-soft); border: 1px solid var(--line); border-radius: 999px; padding: .35rem .8rem; }
nav.toc { position: sticky; top: 45px; z-index: 40; backdrop-filter: blur(14px); background: rgba(11,14,17,.86); border-bottom: 1px solid var(--line); margin: 0 -1.25rem 2.5rem; padding: .65rem 1.25rem; }
nav.toc ul { list-style: none; margin: 0 auto; padding: 0; max-width: var(--max); display: flex; gap: .35rem; overflow-x: auto; scrollbar-width: thin; }
nav.toc a { display: block; white-space: nowrap; color: var(--muted); font-size: .84rem; padding: .45rem .75rem; border-radius: 999px; border: 1px solid transparent; }
nav.toc a:hover,nav.toc a.active { color: var(--text); background: var(--bg-soft); border-color: var(--line); text-decoration: none; }
section { margin: 0 0 4.5rem; scroll-margin-top: 7rem; }
.section-label { font-size: .75rem; letter-spacing: .16em; text-transform: uppercase; color: var(--accent); font-weight: 700; margin-bottom: .6rem; }
h2 { font-size: clamp(1.7rem,3vw,2.35rem); letter-spacing: -.025em; margin: 0 0 1rem; line-height: 1.2; }
h3 { font-size: 1.15rem; margin: 1.75rem 0 .65rem; color: var(--text); }
h4 { color: var(--text); }
p { color: var(--muted); margin: 0 0 1rem; }
p strong,li strong { color: var(--text); font-weight: 650; }
.prose p:last-child { margin-bottom: 0; }
.card { min-width: 0; background: linear-gradient(180deg,rgba(255,255,255,.02),transparent 40%),var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.35rem 1.4rem; box-shadow: 0 20px 50px rgba(0,0,0,.25); }
code { overflow-wrap: anywhere; }
.card + .card { margin-top: 1rem; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.top-gap { margin-top: 1rem; }
.flush { margin-top: 0; }
.compact { margin-top: .75rem; padding: 1rem; }
.compact h4 { margin: 0 0 .4rem; }
.compact p { margin: 0; font-size: .9rem; }
.flow-shell { display: grid; grid-template-columns: 280px 1fr; gap: 1rem; margin-top: 1.25rem; }
.step-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .35rem; max-height: 520px; overflow: auto; }
.step-btn { width: 100%; text-align: left; border: 1px solid var(--line); background: var(--bg-elev); color: var(--muted); border-radius: 12px; padding: .7rem .85rem; cursor: pointer; font: inherit; transition: .15s ease; }
.step-btn:hover { border-color: rgba(255,202,40,.35); color: var(--text); }
.step-btn.active { background: linear-gradient(135deg,rgba(255,202,40,.14),rgba(255,223,122,.1)); border-color: rgba(255,202,40,.45); color: var(--text); box-shadow: 0 0 0 1px rgba(255,202,40,.12),0 10px 30px rgba(0,0,0,.2); }
.step-btn .n { display: inline-block; width: 1.5rem; font-family: var(--mono); font-size: .78rem; color: var(--accent); }
.step-btn .t { font-size: .9rem; font-weight: 600; display: block; margin-top: .15rem; color: inherit; }
.stage { min-height: 420px; display: flex; flex-direction: column; }
.stage-visual { flex: 1; border-radius: 14px; border: 1px solid var(--line); background: linear-gradient(180deg,rgba(255,202,40,.05),transparent 35%),repeating-linear-gradient(0deg,transparent,transparent 23px,rgba(148,163,184,.05) 24px),repeating-linear-gradient(90deg,transparent,transparent 23px,rgba(148,163,184,.05) 24px),var(--bg-elev); position: relative; overflow: hidden; margin-bottom: 1rem; min-height: 240px; }
.pipeline { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; gap: .35rem; padding: 1rem; flex-wrap: wrap; }
.pipe-node { border: 1px solid var(--line); background: var(--bg-card); color: var(--faint); border-radius: 12px; padding: .55rem .65rem; font-size: .72rem; font-weight: 650; letter-spacing: .02em; text-transform: uppercase; min-width: 4.8rem; text-align: center; transition: .2s ease; }
.pipe-node.on { color: var(--bg); background: linear-gradient(135deg,var(--accent),var(--accent-2)); border-color: transparent; box-shadow: 0 0 28px var(--glow); transform: translateY(-2px) scale(1.04); }
.pipe-node.dim { opacity: .35; }
.pipe-link { width: 18px; height: 2px; background: rgba(148,163,184,.35); border-radius: 2px; }
.pipe-link.on { background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.stage-body h3 { margin-top: 0; }
.stage-controls { display: flex; gap: .5rem; margin-top: 1rem; flex-wrap: wrap; }
.btn { border: 1px solid var(--line); background: var(--bg-soft); color: var(--text); border-radius: 999px; padding: .5rem 1rem; font: inherit; font-size: .88rem; cursor: pointer; }
.btn:hover { border-color: rgba(255,202,40,.4); }
.btn.primary { background: linear-gradient(135deg,rgba(255,202,40,.22),rgba(255,223,122,.18)); border-color: rgba(255,202,40,.4); }
.roles { display: grid; grid-template-columns: repeat(4,1fr); gap: .75rem; margin: 1.25rem 0; }
.role { border-radius: 16px; border: 1px solid var(--line); padding: 1rem; background: var(--bg-card); position: relative; overflow: hidden; }
.role::after { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; }
.role.client::after { background: var(--accent); }
.role.agent::after { background: var(--accent-2); }
.role.channel::after { background: var(--accent-3); }
.role.session::after { background: var(--warn); }
.role h4 { margin: 0 0 .4rem; font-size: .95rem; }
.role p { margin: 0; font-size: .88rem; }
.acp-diagram { margin: 1.25rem 0; border-radius: var(--radius); border: 1px solid var(--line); background: var(--bg-elev); padding: 1.5rem 1rem; overflow-x: auto; }
.acp-diagram svg { display: block; margin: 0 auto; max-width: 100%; height: auto; }
.rpc-list { list-style: none; margin: 1rem 0 0; padding: 0; display: grid; gap: .5rem; }
.rpc-list li { display: grid; grid-template-columns: minmax(140px,200px) 1fr; gap: .75rem; padding: .7rem .85rem; border-radius: 12px; background: var(--bg-card); border: 1px solid var(--line); font-size: .92rem; }
.rpc-list code { font-family: var(--mono); font-size: .8rem; color: var(--accent); }
.rpc-list span { color: var(--muted); }
.laziness-flow { display: grid; grid-template-columns: repeat(5,1fr); gap: .55rem; margin: 1.25rem 0; }
.lz-node { border: 1px solid var(--line); border-radius: 14px; padding: .85rem; background: var(--bg-card); min-height: 118px; }
.lz-node .idx { font-family: var(--mono); font-size: .72rem; color: var(--accent); margin-bottom: .35rem; }
.lz-node h4 { margin: 0 0 .35rem; font-size: .92rem; }
.lz-node p { margin: 0; font-size: .82rem; }
.lz-node.abort { border-color: rgba(251,113,133,.35); }
.lz-node.nudge { border-color: rgba(52,211,153,.4); }
.cat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; margin-top: 1rem; }
.cat-col h4 { margin: 0 0 .6rem; font-size: .85rem; letter-spacing: .06em; text-transform: uppercase; color: var(--faint); }
.cat { border-left: 3px solid var(--danger); background: var(--bg-card); border-radius: 0 12px 12px 0; padding: .7rem .85rem; margin-bottom: .45rem; }
.cat.ok { border-left-color: var(--accent-3); }
.cat code { font-family: var(--mono); font-size: .78rem; color: var(--accent); display: block; margin-bottom: .25rem; }
.cat p { margin: 0; font-size: .86rem; }
.compare { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: .85rem; margin: 1.25rem 0; }
.compare .card h4 { margin: 0 0 .5rem; }
.badge { display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; padding: .2rem .5rem; border-radius: 6px; margin-bottom: .55rem; }
.badge.shared { background: rgba(255,202,40,.12); color: var(--accent); }
.badge.isolated { background: rgba(255,223,122,.15); color: var(--accent-2); }
.merge-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .85rem; margin-top: 1rem; }
.merge-grid ul { margin: .4rem 0 0; padding-left: 1.15rem; color: var(--muted); }
.merge-grid li { margin: .35rem 0; }
.yes h4 { color: var(--accent-3); }
.no h4 { color: var(--danger); }
.table-tools { display: flex; flex-wrap: wrap; gap: .6rem; margin: 1rem 0; align-items: center; }
.table-tools input { flex: 1; min-width: 180px; background: var(--bg-elev); border: 1px solid var(--line); color: var(--text); border-radius: 999px; padding: .55rem 1rem; font: inherit; }
.table-tools select { background: var(--bg-elev); border: 1px solid var(--line); color: var(--text); border-radius: 999px; padding: .55rem .9rem; font: inherit; }
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-card); margin-top: 1rem; }
table { width: 100%; border-collapse: collapse; font-size: .88rem; min-width: 920px; }
th,td { text-align: left; padding: .75rem .85rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { position: sticky; top: 0; background: #161c22; color: var(--text); font-size: .78rem; letter-spacing: .04em; text-transform: uppercase; cursor: pointer; user-select: none; white-space: nowrap; }
th:hover { color: var(--accent); }
th .sort-ind { color: var(--faint); margin-left: .3rem; font-size: .7rem; }
tbody tr:hover td { background: rgba(255,202,40,.04); }
td.dest { color: var(--text); font-weight: 600; min-width: 140px; }
.risk { display: inline-block; font-size: .72rem; font-weight: 750; letter-spacing: .06em; text-transform: uppercase; padding: .2rem .45rem; border-radius: 6px; }
.risk.high { background: rgba(251,113,133,.15); color: #fda4af; }
.risk.medium { background: rgba(251,191,36,.14); color: #fcd34d; }
.risk.low { background: rgba(52,211,153,.14); color: #6ee7b7; }
.callout { border-radius: 14px; border: 1px solid rgba(251,191,36,.28); background: rgba(251,191,36,.07); padding: 1rem 1.15rem; margin: 1.25rem 0; }
.callout h4 { margin: 0 0 .45rem; color: var(--warn); font-size: .95rem; }
.callout ul { margin: 0; padding-left: 1.15rem; color: var(--muted); }
.callout li { margin: .3rem 0; }
.table-note { margin-top: .75rem; font-size: .85rem; color: var(--faint); }
.insight { margin-top: 1.25rem; padding: 1rem 1.15rem; border-radius: 14px; border: 1px solid rgba(255,202,40,.22); background: rgba(255,202,40,.06); color: var(--muted); }
.insight strong { color: var(--accent); }
.ol-tight { margin: .5rem 0 0; padding-left: 1.2rem; color: var(--muted); }
.ol-tight li { margin: .45rem 0; }
.check-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 1rem; margin-top: 1.25rem; }
.check-card { position: relative; padding-left: 3.2rem; }
.check-num { position: absolute; left: 1.2rem; top: 1.25rem; font-family: var(--mono); color: var(--accent); font-size: .8rem; }
.check-card h3 { margin: 0 0 .4rem; font-size: 1rem; }
.check-card p { margin: 0; font-size: .93rem; }
.compare-table td:first-child { color: var(--text); font-weight: 650; }
.provenance { margin-top: 1.25rem; border-color: rgba(255,202,40,.3); background: rgba(255,202,40,.055); }
.source-note { margin-top: 1.25rem; font-size: .84rem; color: var(--faint); }
.source-note a { overflow-wrap: anywhere; }
footer { border-top: 1px solid var(--line); padding: 2rem 0 1rem; color: var(--faint); font-size: .88rem; }
.footer-links { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: .8rem; }
@media (max-width: 900px) { .roles { grid-template-columns: 1fr 1fr; } .laziness-flow { grid-template-columns: 1fr 1fr; } }
@media (max-width: 860px) { .flow-shell { grid-template-columns: 1fr; } }
@media (max-width: 820px) { .grid-2 { grid-template-columns: 1fr; } }
@media (max-width: 720px) { .cat-grid,.compare,.merge-grid,.check-grid { grid-template-columns: 1fr; } .sitebar { position: relative; } nav.toc { top: 0; } section { scroll-margin-top: 4rem; } }
@media (max-width: 520px) { .roles { grid-template-columns: 1fr; } h1 { font-size: 2.6rem; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .pipe-node { transition: none; } }