:root {
  --bg: #080b16;
  --bg-soft: #0d1120;
  --panel: rgba(17, 22, 40, 0.82);
  --panel-solid: #111628;
  --panel-raised: #171d33;
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.18);
  --text: #f3f5ff;
  --muted: #9ca6bf;
  --muted-strong: #c1c8d9;
  --mint: #70e1c4;
  --mint-soft: rgba(112, 225, 196, 0.12);
  --violet: #8d98ff;
  --violet-soft: rgba(141, 152, 255, 0.13);
  --amber: #f4be63;
  --pink: #ed79a6;
  --code: #090d1a;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
  --radius: 20px;
  --font: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

html[data-theme="light"] {
  --bg: #f4f6fa;
  --bg-soft: #eef1f7;
  --panel: rgba(255, 255, 255, 0.88);
  --panel-solid: #ffffff;
  --panel-raised: #f6f8fc;
  --line: rgba(18, 28, 52, 0.11);
  --line-strong: rgba(18, 28, 52, 0.2);
  --text: #141a2c;
  --muted: #606b82;
  --muted-strong: #3f4960;
  --mint: #087f69;
  --mint-soft: rgba(8, 127, 105, 0.1);
  --violet: #5362d8;
  --violet-soft: rgba(83, 98, 216, 0.1);
  --amber: #a76500;
  --pink: #b33e70;
  --code: #111827;
  --shadow: 0 24px 70px rgba(42, 52, 79, 0.13);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body { margin: 0; min-width: 320px; color: var(--text); background: var(--bg); font-family: var(--font); line-height: 1.55; overflow-x: hidden; transition: background .25s ease, color .25s ease; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; color: inherit; }
a { color: inherit; }
::selection { background: rgba(112, 225, 196, .28); }

.skip-link { position: fixed; z-index: 100; left: 16px; top: -60px; padding: 10px 16px; border-radius: 8px; background: var(--text); color: var(--bg); text-decoration: none; transition: top .2s; }
.skip-link:focus { top: 12px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.ambient { position: fixed; z-index: -1; border-radius: 50%; filter: blur(110px); opacity: .18; pointer-events: none; }
.ambient-one { width: 420px; height: 420px; top: -160px; left: 8%; background: var(--violet); }
.ambient-two { width: 360px; height: 360px; top: 45%; right: -180px; background: var(--mint); }

.site-header { position: sticky; z-index: 50; top: 0; width: min(1180px, calc(100% - 32px)); height: 68px; margin: 12px auto 0; padding: 0 14px 0 18px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border: 1px solid var(--line); border-radius: 16px; background: color-mix(in srgb, var(--bg) 72%, transparent); backdrop-filter: blur(18px); box-shadow: 0 10px 40px rgba(0,0,0,.12); }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 15px; letter-spacing: -.01em; text-decoration: none; white-space: nowrap; }
.brand img { border-radius: 9px; }
.brand strong { font-weight: 750; }
.site-header nav { display: flex; align-items: center; gap: 28px; }
.site-header nav a { color: var(--muted-strong); font-size: 13px; text-decoration: none; transition: color .2s; }
.site-header nav a:hover { color: var(--text); }
.icon-button { width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 10px; background: var(--panel); cursor: pointer; font-size: 20px; }
.icon-button:hover { border-color: var(--line-strong); background: var(--panel-raised); }
.mobile-nav { display: none; }

main { display: block; }
.hero { width: min(1050px, calc(100% - 40px)); margin: 0 auto; padding: 96px 0 78px; text-align: center; }
.eyebrow, .kicker { color: var(--mint); font-size: 12px; font-weight: 750; letter-spacing: .14em; text-transform: uppercase; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 7px 12px; border: 1px solid rgba(112,225,196,.2); border-radius: 999px; background: var(--mint-soft); }
.pulse { width: 6px; height: 6px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 5px rgba(112,225,196,.1); }
.hero h1 { margin: 22px 0 20px; font-size: clamp(44px, 7vw, 84px); line-height: .98; letter-spacing: -.065em; font-weight: 760; }
.hero h1 span { color: var(--muted); }
.hero-copy { max-width: 700px; margin: 0 auto; color: var(--muted-strong); font-size: clamp(16px, 2vw, 19px); }
.hero-actions { margin-top: 30px; display: flex; justify-content: center; align-items: center; gap: 18px; flex-wrap: wrap; }
.primary-button { display: inline-flex; align-items: center; gap: 14px; padding: 12px 18px; border-radius: 10px; background: var(--text); color: var(--bg); font-size: 13px; font-weight: 750; text-decoration: none; transition: transform .2s, box-shadow .2s; }
.primary-button:hover { transform: translateY(-2px); box-shadow: 0 12px 24px rgba(112,225,196,.14); }
.offline-badge { color: var(--muted); font-size: 12px; }
.hero-metrics { max-width: 720px; margin: 70px auto 0; padding-top: 24px; display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid var(--line); }
.hero-metrics div { display: grid; gap: 3px; }
.hero-metrics div + div { border-left: 1px solid var(--line); }
.hero-metrics strong { font-size: 13px; }
.hero-metrics span { color: var(--muted); font-size: 12px; }

.section-shell { width: min(1180px, calc(100% - 32px)); margin: 0 auto 110px; }
.section-heading { margin-bottom: 30px; display: flex; justify-content: space-between; align-items: end; gap: 40px; }
.section-heading h2 { margin: 4px 0 0; font-size: clamp(30px, 4vw, 48px); line-height: 1.1; letter-spacing: -.045em; }
.section-heading > p { max-width: 470px; margin: 0; color: var(--muted); font-size: 14px; }

.quickstart { margin-bottom: 96px; }
.mental-model { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(145deg, var(--panel), var(--bg-soft)); box-shadow: var(--shadow); }
.model-route { min-height: 92px; padding: 20px 28px; display: flex; align-items: center; justify-content: space-between; gap: 12px; background: linear-gradient(90deg, rgba(141,152,255,.08), rgba(112,225,196,.08)); }
.model-route span { padding: 8px 10px; border: 1px solid var(--line-strong); border-radius: 8px; color: var(--text); background: var(--panel-solid); font-size: 12px; font-weight: 700; text-align: center; }
.model-route b { color: var(--mint); font-size: 18px; }
.model-boundaries { display: grid; grid-template-columns: repeat(3, 1fr); }
.model-boundaries > div { min-height: 78px; padding: 17px 20px; display: grid; gap: 5px; }
.model-boundaries > div + div { border-left: 1px solid var(--line); }
.model-boundaries strong { font-size: 12px; line-height: 1.45; }
.essentials-grid { margin-top: 14px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.essentials-grid article { position: relative; padding: 20px 20px 20px 54px; border: 1px solid var(--line); border-radius: 15px; background: var(--panel); }
.essential-number { position: absolute; left: 18px; top: 19px; width: 26px; height: 26px; display: grid; place-items: center; border-radius: 7px; color: var(--mint); background: var(--mint-soft); font: 700 10px var(--mono); }
.essentials-grid h3 { margin: 0; font-size: 15px; letter-spacing: -.02em; }
.essentials-grid p { margin: 8px 0 0; color: var(--muted-strong); font-size: 12px; line-height: 1.65; }
.essentials-grid code { color: var(--mint); font-family: var(--mono); }
.security-baseline { margin-top: 14px; padding: 24px; display: grid; grid-template-columns: minmax(220px, .58fr) 1.42fr; gap: 20px 28px; border: 1px solid rgba(112,225,196,.26); border-radius: 16px; background: linear-gradient(120deg, var(--mint-soft), var(--panel)); }
.security-baseline h3 { margin: 5px 0 0; font-size: 19px; line-height: 1.25; letter-spacing: -.025em; }
.security-baseline ol { margin: 0; padding-left: 20px; columns: 2; column-gap: 28px; }
.security-baseline li { margin: 0 0 9px; break-inside: avoid; color: var(--muted-strong); font-size: 12px; line-height: 1.55; }
.text-link { grid-column: 1 / -1; color: var(--mint); font-size: 12px; font-weight: 700; text-decoration: none; }
.text-link:hover { text-decoration: underline; text-underline-offset: 3px; }
.reference-section { margin-top: 0; }

.primitive-group-heading { margin: 0 0 12px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.primitive-group-heading > div { display: flex; align-items: center; gap: 13px; }
.primitive-group-heading h3 { margin: 0; font-size: 17px; letter-spacing: -.02em; }
.primitive-group-heading p { margin: 2px 0 0; color: var(--muted); font-size: 12px; }
.primitive-direction { flex: 0 0 auto; padding: 6px 8px; border: 1px solid rgba(141,152,255,.24); border-radius: 7px; color: var(--violet); background: var(--violet-soft); font: 700 10px var(--mono); }
.primitive-count { flex: 0 0 auto; color: var(--muted); font: 700 10px var(--mono); text-transform: uppercase; }
.primitive-client-heading { margin-top: 34px; }
.primitive-client-heading .primitive-direction { color: var(--mint); border-color: rgba(112,225,196,.24); background: var(--mint-soft); }
.primitive-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.primitive-card { min-width: 0; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); box-shadow: var(--shadow); }
.primitive-topline { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.primitive-icon { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 11px; font: 750 12px var(--mono); }
.primitive-control { color: var(--muted); font: 700 10px var(--mono); text-transform: uppercase; letter-spacing: .04em; }
.primitive-status { padding: 4px 7px; border: 1px solid rgba(244,190,99,.25); border-radius: 99px; color: var(--amber); background: rgba(244,190,99,.08); font: 700 10px var(--mono); text-transform: uppercase; letter-spacing: .04em; }
.primitive-card h3 { margin: 20px 0 8px; font-size: 24px; letter-spacing: -.03em; }
.primitive-card > p:not(.primitive-methods) { min-height: 132px; margin: 0; color: var(--muted-strong); font-size: 12px; }
.primitive-example { margin-top: 20px; padding: 13px 14px; display: grid; gap: 7px; border: 1px solid var(--line); border-radius: 11px; background: var(--bg-soft); }
.primitive-example code { overflow-wrap: anywhere; color: var(--muted-strong); font: 10px/1.6 var(--mono); }
.primitive-example code span { color: var(--mint); }
.primitive-methods { margin: 12px 0 0; color: var(--muted); font: 9px/1.7 var(--mono); }
.primitive-methods strong { color: var(--muted-strong); font-weight: 700; }
.primitive-methods code { color: var(--mint); font: inherit; }
.primitive-tool .primitive-icon { color: var(--violet); background: var(--violet-soft); }
.primitive-resource .primitive-icon { color: var(--mint); background: var(--mint-soft); }
.primitive-prompt .primitive-icon { color: var(--amber); background: rgba(244,190,99,.1); }
.primitive-sampling .primitive-icon { color: var(--pink); background: rgba(237,121,166,.1); }
.primitive-roots .primitive-icon { color: var(--mint); background: var(--mint-soft); }
.primitive-elicitation .primitive-icon { color: var(--violet); background: var(--violet-soft); }
.primitive-boundary { margin-top: 14px; padding: 18px 20px; display: grid; grid-template-columns: minmax(220px,.65fr) 1.35fr; gap: 24px; align-items: center; border: 1px solid var(--line); border-radius: 13px; background: var(--panel); }
.primitive-boundary strong { display: block; margin-top: 4px; font-size: 12px; }
.primitive-boundary p { margin: 0; color: var(--muted); font-size: 12px; }
.primitive-sources { margin: 12px 2px 0; color: var(--muted); font-size: 11px; }
.primitive-sources a { color: var(--mint); text-underline-offset: 3px; }

.layer-stack { position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(145deg, var(--panel), color-mix(in srgb, var(--panel-solid) 70%, transparent)); box-shadow: var(--shadow); }
.layer { position: relative; min-height: 150px; padding: 30px 30px 30px 235px; display: flex; align-items: center; justify-content: center; gap: 42px; border-bottom: 1px solid var(--line); transition: background .25s; }
.layer:last-child { border-bottom: 0; }
.layer.active { background: linear-gradient(90deg, transparent, var(--violet-soft), transparent); }
.layer-label { position: absolute; left: 30px; top: 32px; width: 170px; display: grid; }
.layer-label > span { color: var(--muted); font-family: var(--mono); font-size: 11px; }
.layer-label strong { margin-top: 7px; font-size: 13px; }
.layer-label small { color: var(--muted); font-size: 11px; }
.layer-control { background: linear-gradient(90deg, rgba(141,152,255,.035), transparent); }
.layer-transport { min-height: 125px; background: linear-gradient(90deg, rgba(112,225,196,.04), transparent); }
.layer-data { background: linear-gradient(90deg, rgba(244,190,99,.035), transparent); }
.node { min-width: 220px; padding: 16px; display: flex; align-items: center; gap: 12px; text-align: left; border: 1px solid var(--line); border-radius: 14px; background: var(--panel-raised); box-shadow: 0 12px 30px rgba(0,0,0,.12); cursor: pointer; transition: transform .2s, border-color .2s, box-shadow .2s; }
.node:hover, .node:focus-visible, .node.active { transform: translateY(-2px); border-color: color-mix(in srgb, var(--mint) 55%, transparent); box-shadow: 0 14px 35px rgba(0,0,0,.2), 0 0 0 3px var(--mint-soft); outline: none; }
.node-icon { flex: 0 0 38px; height: 38px; display: grid; place-items: center; border-radius: 10px; color: var(--mint); background: var(--mint-soft); font: 700 12px var(--mono); }
.node span:nth-child(2) { display: grid; }
.node strong { font-size: 13px; }
.node small { color: var(--muted); font-size: 11px; }
.node.wide { min-width: 390px; }
.node-chip { margin-left: auto; padding: 4px 7px; color: var(--mint); background: var(--mint-soft); border-radius: 99px; font: 700 10px var(--mono); text-transform: uppercase; }
.flow-arrow { width: 90px; display: grid; place-items: center; gap: 4px; }
.flow-arrow span { width: 100%; height: 1px; position: relative; background: linear-gradient(90deg, var(--violet), var(--mint)); }
.flow-arrow span::after { content: ""; position: absolute; right: 0; top: -3px; border-left: 6px solid var(--mint); border-top: 3px solid transparent; border-bottom: 3px solid transparent; }
.flow-arrow b { color: var(--muted); font: 500 10px var(--mono); }
.node-pair { display: flex; gap: 18px; }
.node.compact { min-width: 200px; }
.branch-lines { width: 38px; height: 1px; background: var(--line-strong); }
.role-note { min-height: 51px; margin-top: 12px; padding: 14px 18px; border: 1px solid var(--line); border-radius: 12px; color: var(--muted); background: var(--panel); font-size: 12px; }
.role-note strong { color: var(--text); }

.explorer-heading { align-items: center; }
.controls { display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.segmented { padding: 3px; display: flex; border: 1px solid var(--line); border-radius: 10px; background: var(--bg-soft); }
.segmented button { padding: 7px 10px; border: 0; border-radius: 7px; color: var(--muted); background: transparent; font-size: 11px; font-weight: 700; cursor: pointer; }
.segmented button[aria-pressed="true"] { color: var(--text); background: var(--panel-raised); box-shadow: 0 2px 8px rgba(0,0,0,.2); }
.protocol-picker button { display: grid; line-height: 1.1; text-align: left; }
.protocol-picker button small { margin-top: 2px; color: var(--muted); font-size: 10px; font-weight: 500; }
.legend { margin-bottom: 12px; padding: 11px 15px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; border: 1px solid var(--line); border-radius: 12px; color: var(--muted); background: var(--panel); font-size: 11px; }
.legend > span { display: inline-flex; align-items: center; gap: 6px; }
.legend-dot { width: 7px; height: 7px; border-radius: 50%; }
.legend-dot.request { background: var(--violet); }
.legend-dot.response { background: var(--mint); }
.legend-dot.notification { background: var(--amber); }
.legend-dot.policy { border-radius: 2px; background: var(--pink); }
.legend .legend-note { margin-left: auto; }
.explorer-guide { margin: -2px 0 14px; padding: 11px 14px; border-left: 3px solid var(--violet); color: var(--muted-strong); background: var(--violet-soft); font-size: 12px; }
.explorer-guide strong { color: var(--text); }

.explorer-grid { display: grid; grid-template-columns: minmax(280px, .72fr) minmax(0, 1.55fr); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--panel); box-shadow: var(--shadow); }
.timeline-panel { max-height: 900px; overflow-y: auto; padding: 14px; border-right: 1px solid var(--line); scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
.timeline { margin: 0; padding: 0; list-style: none; }
.timeline-phase { margin: 0 0 12px; }
.timeline-phase:last-child { margin-bottom: 0; }
.timeline-phase-label { display: block; padding: 7px 10px 6px; color: var(--mint); font: 700 10px var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.timeline-phase > ol { margin: 0; padding: 0; list-style: none; }
.timeline-phase > ol > li { position: relative; }
.timeline-phase > ol > li:not(:last-child)::after { content: ""; position: absolute; left: 19px; top: 42px; bottom: -6px; width: 1px; background: var(--line); }
.step-button { width: 100%; padding: 12px 11px; display: grid; grid-template-columns: 38px 1fr auto; align-items: center; gap: 11px; border: 1px solid transparent; border-radius: 11px; text-align: left; background: transparent; cursor: pointer; transition: background .2s, border-color .2s; }
.step-button:hover { background: var(--violet-soft); }
.step-button[aria-current="step"] { border-color: rgba(141,152,255,.3); background: var(--violet-soft); }
.step-index { position: relative; z-index: 1; width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 9px; color: var(--muted); background: var(--panel-solid); font: 700 10px var(--mono); }
.step-button[aria-current="step"] .step-index { color: #0c1120; border-color: var(--violet); background: var(--violet); }
.step-name { display: grid; }
.step-name strong { font-size: 12px; }
.step-name small { color: var(--muted); font-size: 10px; }
.step-kind { padding: 3px 6px; border-radius: 5px; color: var(--muted); background: var(--bg-soft); font: 600 10px var(--mono); text-transform: uppercase; }

.detail-panel { min-width: 0; padding: 34px 38px 28px; }
.detail-topline { display: flex; gap: 8px; align-items: center; }
.step-badge, .phase-badge, .flow-badge { padding: 4px 7px; border-radius: 5px; font: 700 10px var(--mono); text-transform: uppercase; }
.step-badge { color: var(--violet); background: var(--violet-soft); }
.phase-badge { color: var(--mint); background: var(--mint-soft); }
.flow-badge { color: var(--amber); background: rgba(244,190,99,.08); }
.detail-panel h3 { margin: 12px 0 8px; font-size: clamp(26px, 3vw, 38px); letter-spacing: -.04em; line-height: 1.1; }
.step-summary { max-width: 720px; min-height: 45px; margin: 0; color: var(--muted-strong); font-size: 13px; }
.exchange-card { margin: 20px 0 12px; padding: 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg-soft); }
.exchange-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.exchange-heading h4 { margin: 3px 0 0; font-size: 15px; letter-spacing: -.02em; }
.exchange-classification { padding: 4px 7px; border: 1px solid var(--line); border-radius: 4px; color: var(--muted-strong); background: var(--panel-solid); font: 700 10px var(--mono); text-transform: uppercase; letter-spacing: .05em; }
.exchange-facts { margin: 14px 0 10px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: 1px solid var(--line); border-radius: 9px; background: var(--panel); }
.exchange-facts > div { min-width: 0; padding: 10px; }
.exchange-facts > div + div { border-left: 1px solid var(--line); }
.exchange-facts dt { color: var(--muted); font: 700 10px var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.exchange-facts dd { margin: 4px 0 0; color: var(--text); font-size: 12px; font-weight: 700; overflow-wrap: anywhere; }
.step-swimlane { margin: 0; border: 1px solid var(--line); border-radius: 9px; overflow: hidden; background: var(--panel); }
.step-swimlane svg { width: 100%; height: auto; display: block; }
.step-swimlane .lane-rule { stroke: var(--line); stroke-width: 1; }
.step-swimlane .lane-label { fill: var(--muted); font: 700 18px var(--mono); letter-spacing: .08em; }
.step-swimlane .request-line { stroke: var(--violet); stroke-width: 3; }
.step-swimlane .response-line { stroke: var(--mint); stroke-width: 3; stroke-dasharray: 8 6; }
.step-swimlane .exchange-node { fill: var(--panel-solid); stroke-width: 2; }
.step-swimlane .exchange-node.request { stroke: var(--violet); }
.step-swimlane .exchange-node.response { stroke: var(--mint); }
.step-swimlane .node-label { fill: var(--text); font: 700 16px var(--font); }
.step-swimlane .arrow-mask { fill: var(--panel); }
.step-swimlane .arrow-label { font: 700 14px var(--mono); letter-spacing: .08em; }
.step-swimlane .arrow-label.request { fill: var(--violet); }
.step-swimlane .arrow-label.response { fill: var(--mint); }
.mobile-exchange { display: none; }
.component-route { margin-top: 12px; }
.route { margin: 5px 0 0; padding: 10px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; overflow-x: hidden; border: 1px solid var(--line); border-radius: 9px; background: var(--panel); }
.route-node { padding: 6px 9px; border: 1px solid var(--line); border-radius: 7px; white-space: nowrap; color: var(--muted-strong); background: var(--panel-solid); font-size: 11px; font-weight: 700; }
.route-node.active { color: var(--text); border-color: rgba(112,225,196,.35); background: var(--mint-soft); }
.route-arrow { color: var(--muted); font-family: var(--mono); font-size: 11px; }
.exchange-outcomes { margin-top: 12px; display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
.exchange-outcomes > div { padding: 11px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); }
.exchange-outcomes p { margin: 5px 0 0; color: var(--muted-strong); font-size: 12px; }
.insight-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.insight-row > div { padding: 13px; border: 1px solid var(--line); border-radius: 10px; }
.mini-label { color: var(--muted); font: 700 10px var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.insight-row p { margin: 5px 0 0; font-size: 12px; color: var(--muted-strong); }
.expert-note { display: none; margin-top: 10px; padding: 12px 14px; border-left: 2px solid var(--amber); border-radius: 0 8px 8px 0; color: var(--muted-strong); background: rgba(244,190,99,.07); font-size: 12px; }
body[data-mode="detail"] .expert-note { display: block; }

.payload-card { margin-top: 18px; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: var(--code); }
.payload-header { min-height: 45px; padding: 0 12px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid rgba(255,255,255,.08); }
.tabs { align-self: stretch; display: flex; gap: 16px; }
.tabs button { position: relative; padding: 0 2px; border: 0; color: #7f8aa5; background: transparent; font-size: 11px; font-weight: 700; cursor: pointer; }
.tabs button[aria-selected="true"] { color: #f3f5ff; }
.tabs button[aria-selected="true"]::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--mint); }
.copy-button { padding: 5px 8px; border: 1px solid rgba(255,255,255,.1); border-radius: 6px; color: #9ca6bf; background: rgba(255,255,255,.04); font-size: 11px; cursor: pointer; }
.copy-button:hover { color: #fff; }
.wire-meta { min-height: 27px; padding: 7px 14px; display: flex; flex-wrap: wrap; gap: 6px 12px; overflow-x: hidden; border-bottom: 1px solid rgba(255,255,255,.06); color: #71809e; font: 10px var(--mono); white-space: normal; }
.wire-meta span { color: #aeb7ca; overflow-wrap: anywhere; }
pre { min-height: 280px; max-height: 420px; margin: 0; padding: 18px; overflow-y: auto; overflow-x: hidden; white-space: pre-wrap; overflow-wrap: anywhere; color: #cbd5e1; font: 11px/1.65 var(--mono); tab-size: 2; scrollbar-width: thin; scrollbar-color: #364159 transparent; }
.code-key { color: #8d98ff; }.code-string { color: #83ddbd; }.code-number { color: #f4be63; }.code-boolean { color: #ed79a6; }.code-null { color: #aab2c6; }
.step-nav { margin-top: 16px; display: flex; justify-content: space-between; align-items: center; }
.step-nav button { padding: 7px 10px; border: 1px solid var(--line); border-radius: 8px; color: var(--muted-strong); background: var(--panel-raised); font-size: 11px; cursor: pointer; }
.step-nav button:disabled { opacity: .35; cursor: default; }
.step-nav span { color: var(--muted); font: 10px var(--mono); }

.identity-grid { display: grid; grid-template-columns: 1fr 54px 1fr; align-items: stretch; }
.concept-card { position: relative; padding: 30px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); box-shadow: var(--shadow); }
.concept-number { position: absolute; right: 24px; top: 22px; color: var(--line-strong); font: 700 40px var(--mono); }
.concept-icon { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 12px; font-size: 21px; }
.authn-card .concept-icon { color: var(--violet); background: var(--violet-soft); }
.authz-card .concept-icon { color: var(--mint); background: var(--mint-soft); }
.concept-card h3 { margin: 18px 0 8px; font-size: 24px; letter-spacing: -.03em; }
.concept-card p { color: var(--muted); font-size: 13px; }
.concept-card ul { margin: 20px 0 0; padding: 0; list-style: none; display: grid; gap: 9px; }
.concept-card li { position: relative; padding-left: 16px; color: var(--muted-strong); font-size: 12px; }
.concept-card li::before { content: ""; position: absolute; left: 0; top: 7px; width: 5px; height: 5px; border-radius: 50%; background: var(--mint); }
.not-equal { display: grid; place-items: center; color: var(--muted); font-size: 22px; }
.callout { margin-top: 14px; padding: 18px 22px; border: 1px solid rgba(237,121,166,.25); border-radius: 13px; color: var(--muted-strong); background: rgba(237,121,166,.06); font-size: 12px; }
.callout strong { color: var(--pink); }.callout code { color: var(--mint); font-family: var(--mono); }

.entra-flow { margin: 18px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; list-style: none; }
.entra-flow li { min-height: 105px; padding: 16px; display: flex; gap: 12px; border: 1px solid var(--line); border-radius: 13px; background: var(--panel); }
.entra-flow li > span { flex: 0 0 30px; height: 30px; display: grid; place-items: center; border-radius: 8px; color: var(--mint); background: var(--mint-soft); font: 700 10px var(--mono); }
.entra-flow li div { display: grid; align-content: start; gap: 5px; }
.entra-flow strong { font-size: 12px; }
.entra-flow small { color: var(--muted); font-size: 12px; line-height: 1.5; }
.entra-flow code, .status-grid code { color: var(--mint); font-family: var(--mono); }
.status-grid { margin-top: 10px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.status-grid > div { padding: 16px 18px; display: grid; gap: 5px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
.status-grid strong { color: var(--amber); font-size: 12px; }
.status-grid span { color: var(--muted-strong); font-size: 12px; }

.onboard-sequence { margin: 0 0 14px; padding: 0; display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px; list-style: none; }
.onboard-sequence li { min-width: 0; padding: 15px 13px; display: grid; align-content: start; gap: 6px; border: 1px solid var(--line); border-radius: 13px; background: var(--panel); }
.onboard-sequence li > span { width: 29px; height: 29px; display: grid; place-items: center; border-radius: 8px; color: var(--mint); background: var(--mint-soft); font: 700 10px var(--mono); }
.onboard-sequence strong { font-size: 12px; }
.onboard-sequence small { color: var(--muted); font-size: 11px; line-height: 1.45; }
.manifest-boundary { margin-bottom: 14px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.manifest-boundary > div { padding: 18px; display: grid; gap: 6px; border: 1px solid var(--line); border-radius: 13px; background: var(--panel); }
.manifest-boundary > div:first-child { border-top-color: color-mix(in srgb, var(--amber) 55%, transparent); }
.manifest-boundary > div:last-child { border-top-color: color-mix(in srgb, var(--mint) 55%, transparent); }
.manifest-boundary strong { font-size: 13px; }
.manifest-boundary p { margin: 0; color: var(--muted); font-size: 12px; }
.manifest-boundary code, .manifest-glossary code, .onboard-warnings code { color: var(--mint); font-family: var(--mono); }
.example-workbench { overflow: hidden; border: 1px solid var(--line); border-radius: 16px; background: var(--code); box-shadow: var(--shadow); }
.example-tabs { min-height: 48px; padding: 0 14px; display: flex; gap: 20px; border-bottom: 1px solid rgba(255,255,255,.08); }
.example-tabs button { position: relative; padding: 0 2px; border: 0; color: #7f8aa5; background: transparent; font-size: 11px; font-weight: 700; cursor: pointer; }
.example-tabs button[aria-selected="true"] { color: #f3f5ff; }
.example-tabs button[aria-selected="true"]::after { content: ""; position: absolute; right: 0; bottom: 0; left: 0; height: 2px; background: var(--mint); }
.example-context { padding: 13px 18px 6px; display: flex; align-items: center; justify-content: space-between; gap: 18px; color: #f3f5ff; }
.example-context > div { display: grid; gap: 3px; }
.example-context strong { font-size: 12px; }
.example-context > span { padding: 4px 8px; border-radius: 99px; color: #83ddbd; background: rgba(112,225,196,.1); font: 700 10px var(--mono); white-space: nowrap; }
.example-disclaimer { margin: 0; padding: 0 18px 4px; color: #7f8aa5; font-size: 11px; }
.example-workbench pre { min-height: 320px; }
.glossary-shell { margin-top: 14px; padding: 24px; border: 1px solid var(--line); border-radius: 16px; background: var(--panel); }
.glossary-shell h3 { margin: 0 0 16px; font-size: 18px; }
.manifest-glossary { margin: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 24px; }
.manifest-glossary > div { padding: 12px 0; display: grid; grid-template-columns: minmax(110px,.42fr) 1fr; gap: 14px; border-top: 1px solid var(--line); }
.manifest-glossary dt { font-size: 12px; font-weight: 700; }
.manifest-glossary dd { margin: 0; color: var(--muted); font-size: 12px; }
.onboard-warnings { margin-top: 14px; padding: 18px 22px; border: 1px solid rgba(244,190,99,.24); border-radius: 13px; background: rgba(244,190,99,.06); }
.onboard-warnings > strong { color: var(--amber); font-size: 12px; }
.onboard-warnings ul { margin: 10px 0 0; padding-left: 18px; columns: 2; column-gap: 34px; }
.onboard-warnings li { margin-bottom: 7px; break-inside: avoid; color: var(--muted-strong); font-size: 12px; }
.operations-checklist { margin: 0 0 14px; padding: 21px 22px; border: 1px solid var(--line); border-radius: 16px; background: var(--panel); }
.operations-checklist h3 { margin: 5px 0 0; font-size: 18px; letter-spacing: -.02em; }
.operations-grid { margin-top: 16px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.operations-grid > div { padding: 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg-soft); }
.operations-grid strong { color: var(--mint); font-size: 12px; }
.operations-grid p { margin: 6px 0 0; color: var(--muted-strong); font-size: 12px; line-height: 1.55; }

.risks { font-size: 16px; }
.risk-primer { margin-bottom: 14px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.risk-primer > div { position: relative; padding: 20px 20px 20px 52px; border: 1px solid var(--line); border-radius: 15px; background: linear-gradient(145deg, var(--panel), var(--bg-soft)); }
.risk-primer .concept-number { left: 16px; top: 18px; }
.risk-primer strong { font-size: 14px; }
.risk-primer p { margin: 7px 0 0; color: var(--muted); font-size: 12px; line-height: 1.65; }
.risk-reading-note { margin: 0 0 20px; padding: 14px 17px; border-left: 3px solid var(--violet); border-radius: 0 9px 9px 0; color: var(--muted-strong); background: var(--violet-soft); font-size: 12px; line-height: 1.65; }
.risk-reading-note strong { color: var(--text); }
.risk-toolbar { margin-bottom: 16px; display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.risk-toolbar .segmented { overflow-x: auto; }
.risk-count { color: var(--muted); font: 11px var(--mono); white-space: nowrap; }
.risk-register { display: grid; gap: 10px; }
.risk-item { border: 1px solid var(--line); border-radius: 16px; overflow: hidden; background: var(--panel); box-shadow: 0 10px 35px rgba(0,0,0,.09); }
.risk-item:has(.risk-trigger[aria-expanded="true"]) { border-color: color-mix(in srgb, var(--violet) 48%, var(--line)); box-shadow: 0 18px 50px rgba(0,0,0,.16); }
.risk-trigger { width: 100%; padding: 19px 20px; display: grid; grid-template-columns: 82px minmax(0,1fr) auto auto; align-items: center; gap: 16px; border: 0; text-align: left; background: transparent; cursor: pointer; }
.risk-trigger:hover { background: var(--violet-soft); }
.risk-id { color: var(--violet); font: 700 11px var(--mono); }
.risk-title { font-size: 15px; line-height: 1.35; }
.risk-boundary { padding: 5px 9px; border-radius: 99px; color: var(--mint); background: var(--mint-soft); font: 700 10px var(--mono); text-transform: uppercase; }
.risk-chevron { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; color: var(--muted); background: var(--bg-soft); transition: transform .2s, background .2s; }
.risk-trigger[aria-expanded="true"] .risk-chevron { transform: rotate(45deg); }
.risk-detail { padding: 2px 20px 22px 118px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.risk-detail[hidden] { display: none; }
.risk-detail > div { padding: 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg-soft); }
.risk-detail .mini-label { font-size: 10px; }
.risk-detail p { margin: 7px 0 0; color: var(--muted-strong); font-size: 12px; line-height: 1.65; }
.risk-detail code { color: var(--amber); font: 11px/1.65 var(--mono); }
.risk-example { position: relative; min-width: 0; padding: 16px 16px 16px 44px !important; }
.risk-example-icon { position: absolute; left: 16px; top: 14px; font: 800 18px var(--mono); }
.risk-example pre { min-height: 0; margin: 10px 0 0; padding: 13px; overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; background: var(--code); white-space: pre-wrap; overflow-wrap: anywhere; }
.risk-insecure { border-color: rgba(237,121,166,.24) !important; background: rgba(237,121,166,.05) !important; }
.risk-insecure .risk-example-icon { color: var(--pink); }
.risk-secure { border-color: rgba(112,225,196,.24) !important; background: var(--mint-soft) !important; }
.risk-secure .risk-example-icon { color: var(--mint); }
.risk-secure code { color: var(--mint); }
.risk-source { grid-column: 1 / -1; padding: 0 !important; border: 0 !important; background: transparent !important; }
.risk-source a { color: var(--mint); font-size: 12px; text-underline-offset: 3px; }
.risk-empty { padding: 28px; border: 1px dashed var(--line-strong); border-radius: 14px; color: var(--muted); text-align: center; }

footer { width: min(1180px, calc(100% - 32px)); margin: 0 auto; padding: 28px 0 42px; display: flex; align-items: center; gap: 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
footer p { margin: 0; } footer > a { margin-left: auto; text-decoration: none; }.footer-brand { color: var(--text); }

:focus-visible { outline: 2px solid var(--mint); outline-offset: 3px; }

@media (max-width: 900px) {
  .essentials-grid { grid-template-columns: 1fr; }.operations-grid { grid-template-columns: 1fr; }
  .primitive-grid { grid-template-columns: 1fr; }.primitive-card > p:not(.primitive-methods) { min-height: 0; }
  .layer { padding-left: 190px; gap: 18px; }.layer-label { left: 22px; width: 145px; }.node { min-width: 180px; }.node-pair { flex-direction: column; }.node.compact { min-width: 230px; }.branch-lines { display: none; }
  .explorer-grid { grid-template-columns: 240px minmax(0,1fr); }.detail-panel { padding: 28px 24px; }.step-button { grid-template-columns: 32px 1fr; }.step-kind { display: none; }
  .exchange-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }.exchange-facts > div:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }.exchange-facts > div:nth-child(4) { border-top: 1px solid var(--line); }
  .exchange-outcomes { grid-template-columns: 1fr; }
  .entra-flow { grid-template-columns: repeat(2, 1fr); }
  .onboard-sequence { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 720px) {
  .site-header { height: 60px; margin-top: 8px; }.site-header nav { display: none; }
  button { min-height: 44px; }
  .icon-button { width: 44px; height: 44px; }
  .mobile-nav { position: sticky; z-index: 49; top: 70px; width: min(100% - 32px, 1180px); margin: 8px auto 0; padding: 7px; display: flex; gap: 6px; overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(14px); scrollbar-width: none; }.mobile-nav::-webkit-scrollbar { display: none; }.mobile-nav a { flex: 0 0 auto; min-height: 36px; padding: 8px 10px; border-radius: 7px; color: var(--muted-strong); background: var(--panel); font-size: 12px; font-weight: 700; text-decoration: none; }
  .hero { padding: 64px 0 62px; }.hero h1 { font-size: clamp(42px, 14vw, 64px); }.hero-metrics { grid-template-columns: 1fr; gap: 14px; text-align: left; }.hero-metrics div { padding-left: 12px; border-left: 1px solid var(--line); }.hero-metrics div + div { border-left: 1px solid var(--line); }
  .section-shell { margin-bottom: 80px; }.section-heading { align-items: start; flex-direction: column; gap: 14px; }.section-heading > p { max-width: none; }
  .quickstart { margin-bottom: 80px; }.model-route { padding: 14px; flex-wrap: wrap; justify-content: center; gap: 8px; }.model-route span { font-size: 11px; }.model-route b { font-size: 14px; }.model-boundaries { grid-template-columns: 1fr; }.model-boundaries > div { min-height: 0; padding: 14px; }.model-boundaries > div + div { border-top: 1px solid var(--line); border-left: 0; }.security-baseline { grid-template-columns: 1fr; gap: 14px; padding: 20px; }.security-baseline ol { columns: 1; }.security-baseline li, .essentials-grid p, .operations-grid p { font-size: 13px; }
  .primitive-group-heading { align-items: flex-start; }.primitive-group-heading > div { align-items: flex-start; }.primitive-count { display: none; }.primitive-boundary { grid-template-columns: 1fr; gap: 8px; }
  .layer { padding: 22px; flex-direction: column; gap: 14px; }.layer-label { position: static; width: 100%; }.flow-arrow { height: 24px; width: 1px; }.flow-arrow span { width: 1px; height: 24px; }.flow-arrow span::after { right: -3px; top: auto; bottom: 0; border-left: 3px solid transparent; border-right: 3px solid transparent; border-top: 6px solid var(--mint); }.flow-arrow b { display: none; }.node, .node.wide, .node.compact { width: 100%; min-width: 0; }.node-pair { width: 100%; }
  .explorer-heading { align-items: stretch; }.controls { justify-content: flex-start; }.legend .legend-note { width: 100%; margin-left: 0; }
  .explorer-grid { display: block; overflow: visible; border: 0; background: transparent; box-shadow: none; }.timeline-panel { padding: 8px; overflow-x: auto; overflow-y: hidden; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); scrollbar-width: none; }.timeline-panel::-webkit-scrollbar { display: none; }.timeline { display: flex; width: max-content; }.timeline li::after { display: none; }.timeline-phase { width: 150px; }.timeline-phase-label { min-height: 32px; padding: 8px 10px; display: block; color: var(--mint); font: 700 10px var(--mono); text-transform: uppercase; }.step-button { width: 150px; min-height: 52px; grid-template-columns: 30px 1fr; }.detail-panel { margin-top: 10px; padding: 24px 18px; border: 1px solid var(--line); border-radius: 16px; background: var(--panel); box-shadow: var(--shadow); }.detail-topline { flex-wrap: wrap; }.exchange-card { padding: 12px; }.exchange-heading { align-items: stretch; flex-direction: column; }.exchange-classification { align-self: flex-start; }.exchange-facts { grid-template-columns: 1fr; }.exchange-facts > div + div, .exchange-facts > div:nth-child(3), .exchange-facts > div:nth-child(4) { border-left: 0; border-top: 1px solid var(--line); }.step-swimlane { display: none; }.mobile-exchange { display: grid; gap: 7px; }.mobile-exchange > div { padding: 9px 10px; display: grid; grid-template-columns: 62px 1fr; gap: 8px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); }.mobile-exchange strong { color: var(--muted); font: 700 10px var(--mono); text-transform: uppercase; }.mobile-exchange span { color: var(--muted-strong); font-size: 11px; }.insight-row { grid-template-columns: 1fr; } pre { min-height: 300px; font-size: 11px; }
  .identity-grid { grid-template-columns: 1fr; gap: 12px; }.not-equal { height: 32px; }.concept-card { padding: 24px; }
  .entra-flow, .status-grid { grid-template-columns: 1fr; }
  .onboard-sequence, .manifest-boundary, .manifest-glossary { grid-template-columns: 1fr; }
  .manifest-glossary > div { grid-template-columns: 1fr; gap: 4px; }
  .example-tabs { overflow-x: auto; }.example-tabs button { flex: 0 0 auto; }
  .example-context { align-items: flex-start; flex-direction: column; gap: 8px; }
  .example-workbench pre { min-height: 360px; }
  .onboard-warnings ul { columns: 1; }
  .risk-primer { grid-template-columns: 1fr; }
  .risk-toolbar { align-items: stretch; flex-direction: column; }.risk-toolbar .segmented { width: 100%; }.risk-toolbar .segmented button { flex: 1 0 auto; }
  .risk-trigger { grid-template-columns: 58px minmax(0,1fr) auto; gap: 9px; }.risk-boundary { display: none; }
  .risk-detail { padding: 0 14px 14px; grid-template-columns: 1fr; }.risk-source { grid-column: auto; }
  footer { align-items: flex-start; flex-wrap: wrap; } footer p { width: 100%; order: 3; } footer > a { margin-left: auto; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}