/* ── Tokens ──────────────────────────────────────────────────────── */
    :root {
      --bg: #ffffff; --bg-subtle: #f8fafc; --bg-code: #0f172a;
      --border: #e2e8f0; --text: #1e293b; --text-muted: #64748b; --text-faint: #94a3b8;
      --teal: #0d9488; --teal-dk: #0f766e; --teal-light: #f0fdfa; --teal-mid: #99f6e4;
      --amber: #f59e0b; --red: #ef4444; --green: #22c55e;
      --sidebar-w: 268px; --content-max: 860px;
      --font: system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
      --mono: "SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
      --radius: 8px;
    }
    .dark {
      --bg: #0f172a; --bg-subtle: #1e293b; --bg-code: #020617;
      --border: #334155; --text: #e2e8f0; --text-muted: #94a3b8; --text-faint: #475569;
      --teal: #2dd4bf; --teal-dk: #5eead4; --teal-light: #042f2e; --teal-mid: #115e59;
    }
    *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth;font-size:16px;scroll-padding-top:72px;-webkit-text-size-adjust:100%}
    body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;min-height:100vh;overflow-x:hidden;transition:background .2s,color .2s}

    /* ── Layout ──────────────────────────────────────────────────────── */
    #layout{display:flex;min-height:100vh}

    /* Sidebar */
    #sidebar{
      width:var(--sidebar-w);flex-shrink:0;position:fixed;top:0;left:0;height:100vh;
      overflow-y:auto;border-right:1px solid var(--border);background:var(--bg-subtle);
      display:flex;flex-direction:column;z-index:30;
      transition:transform .25s ease,background .2s,border-color .2s;
    }
    #sidebar-header{padding:18px 16px 12px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:8px}
    #logo{display:flex;align-items:center;gap:10px;text-decoration:none}
    #logo-icon{width:30px;height:30px;background:var(--teal);border-radius:7px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
    #logo-icon svg{width:17px;height:17px;fill:white}
    #logo-text{font-weight:700;font-size:.88rem;color:var(--text);line-height:1.2}
    #logo-text span{display:block;font-size:.68rem;font-weight:400;color:var(--text-muted)}
    .icon-btn{width:28px;height:28px;border:none;background:none;cursor:pointer;color:var(--text-muted);border-radius:6px;display:flex;align-items:center;justify-content:center;transition:background .12s,color .12s}
    .icon-btn:hover{background:var(--border);color:var(--text)}
    .icon-btn svg{width:14px;height:14px}

    #sidebar-search{padding:8px 10px;border-bottom:1px solid var(--border)}
    #sidebar-search input{width:100%;background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:5px 9px;font-size:.78rem;color:var(--text);outline:none;transition:border-color .15s}
    #sidebar-search input:focus{border-color:var(--teal)}
    #sidebar-search input::placeholder{color:var(--text-faint)}

    #sidebar-nav{flex:1;padding:6px 6px 24px;overflow-y:auto}
    .nav-group{margin-bottom:2px}
    .nav-label{font-size:.65rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-faint);padding:10px 10px 3px}
    .nav-link{display:flex;align-items:center;gap:7px;padding:5px 10px;border-radius:6px;font-size:.8rem;color:var(--text-muted);text-decoration:none;cursor:pointer;transition:background .1s,color .1s;user-select:none}
    .nav-link:hover{background:var(--border);color:var(--text)}
    .nav-link.active{background:var(--teal-light);color:var(--teal);font-weight:600}
    .nav-link svg{width:14px;height:14px;flex-shrink:0;opacity:.6}
    .nav-link.active svg{opacity:1}

    /* Main */
    #content{margin-left:var(--sidebar-w);flex:1;min-width:0;padding:48px 48px 80px 56px}
    .content-inner{max-width:var(--content-max)}

    /* Mobile topbar */
    #topbar{display:none;position:sticky;top:0;z-index:20;background:var(--bg);border-bottom:1px solid var(--border);padding:10px 16px;align-items:center;gap:10px}
    #topbar button{min-width:40px;min-height:40px;background:none;border:none;cursor:pointer;color:var(--text-muted);padding:8px;border-radius:6px;display:flex;align-items:center;justify-content:center}
    #topbar button svg{width:20px;height:20px;display:block}
    #topbar-title{font-weight:700;font-size:.88rem;color:var(--text);flex:1}
    #overlay{display:none;position:fixed;inset:0;z-index:29;background:rgba(0,0,0,.4)}
    #overlay.show{display:block}

    /* ── Typography ──────────────────────────────────────────────────── */
    .doc-section{margin-bottom:80px}
    h1{font-size:1.9rem;font-weight:800;letter-spacing:-.02em;line-height:1.2;margin-bottom:10px}
    h2{font-size:1.35rem;font-weight:700;letter-spacing:-.01em;margin-top:52px;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--border)}
    h3{font-size:1rem;font-weight:700;margin-top:28px;margin-bottom:10px}
    h4{font-size:.82rem;font-weight:700;margin-top:18px;margin-bottom:6px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em}
    p{margin-bottom:14px;font-size:.9rem;color:var(--text)}
    p:last-child{margin-bottom:0}
    ul,ol{padding-left:1.4em;margin-bottom:14px;font-size:.9rem}
    li{margin-bottom:5px}
    strong{font-weight:600}
    a{color:var(--teal);text-decoration:none}
    a:hover{text-decoration:underline}
    .lead{font-size:1rem;color:var(--text-muted);margin-bottom:28px;line-height:1.75}
    .back-link{display:inline-flex;align-items:center;gap:5px;font-size:.76rem;color:var(--text-muted);text-decoration:none;margin-bottom:28px;padding:5px 10px;border-radius:6px;border:1px solid var(--border);transition:background .12s,color .12s}
    .back-link:hover{background:var(--bg-subtle);color:var(--text);text-decoration:none}
    .back-link svg{width:12px;height:12px}
    .source-tag{display:inline-flex;align-items:center;gap:4px;max-width:100%;font-size:.68rem;font-family:var(--mono);color:var(--text-faint);background:var(--bg-subtle);border:1px solid var(--border);border-radius:4px;padding:1px 6px;margin-left:8px;vertical-align:middle;overflow-wrap:anywhere}
    .divider{border:none;border-top:1px solid var(--border);margin:28px 0}

    /* ── Code ────────────────────────────────────────────────────────── */
    code{font-family:var(--mono);font-size:.8em;background:var(--bg-subtle);border:1px solid var(--border);border-radius:4px;padding:1px 5px;overflow-wrap:anywhere}
    pre{max-width:100%;background:var(--bg-code);border-radius:var(--radius);padding:16px 18px;overflow-x:auto;margin-bottom:18px;-webkit-overflow-scrolling:touch}
    pre code{background:none;border:none;padding:0;font-size:.8rem;color:#e2e8f0;line-height:1.7}
    .cm{color:#475569}.kw{color:#7dd3fc}.str{color:#86efac}.num{color:#fdba74}

    /* ── Tables ──────────────────────────────────────────────────────── */
    .table-wrap{max-width:100%;overflow-x:auto;margin-bottom:22px;border-radius:var(--radius);border:1px solid var(--border);-webkit-overflow-scrolling:touch}
    table{width:100%;border-collapse:collapse;font-size:.82rem}
    thead{background:var(--bg-subtle)}
    th{padding:9px 13px;text-align:left;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);border-bottom:1px solid var(--border)}
    td{padding:9px 13px;border-bottom:1px solid var(--border);vertical-align:top;line-height:1.5}
    tr:last-child td{border-bottom:none}
    tr:hover td{background:var(--bg-subtle)}

    /* ── Cards ───────────────────────────────────────────────────────── */
    .card-grid{display:grid;gap:10px;margin-bottom:20px}
    .g2{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
    .g3{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}
    .g4{grid-template-columns:repeat(auto-fill,minmax(170px,1fr))}
    .card{background:var(--bg-subtle);border:1px solid var(--border);border-radius:var(--radius);padding:14px}
    .card-title{font-weight:700;font-size:.86rem;margin-bottom:4px}
    .card-sub{font-size:.76rem;color:var(--text-muted);font-family:var(--mono);margin-bottom:5px}
    .card-note{font-size:.78rem;color:var(--text-muted);line-height:1.5}
    .card.teal-border{border-left:3px solid var(--teal)}

    /* ── Callouts ────────────────────────────────────────────────────── */
    .callout{border-left:3px solid var(--teal);background:var(--teal-light);border-radius:0 var(--radius) var(--radius) 0;padding:11px 14px;margin-bottom:18px;font-size:.86rem}
    .callout-warn{border-left-color:var(--amber);background:#fffbeb}
    .dark .callout-warn{background:#1c1402}
    .callout-red{border-left-color:var(--red);background:#fff1f2}
    .dark .callout-red{background:#1c0208}
    .callout p:last-child{margin-bottom:0}

    /* ── Badges ──────────────────────────────────────────────────────── */
    .badge{display:inline-block;padding:1px 7px;border-radius:99px;font-size:.7rem;font-weight:600}
    .b-teal{background:var(--teal-light);color:var(--teal);border:1px solid var(--teal-mid)}
    .b-gray{background:var(--bg-subtle);color:var(--text-muted);border:1px solid var(--border)}
    .b-amber{background:#fffbeb;color:#b45309;border:1px solid #fde68a}
    .dark .b-amber{background:#1c1402;color:#fbbf24;border-color:#78350f}
    .b-red{background:#fff1f2;color:#be123c;border:1px solid #fecdd3}
    .dark .b-red{background:#1c0208;color:#fb7185;border-color:#881337}
    .b-green{background:#f0fdf4;color:#15803d;border:1px solid #bbf7d0}
    .dark .b-green{background:#052e16;color:#86efac;border-color:#14532d}
    .method{font-weight:700;font-family:var(--mono)}
    .m-get{background:#eff6ff;color:#1d4ed8;border:1px solid #bfdbfe}
    .m-post{background:#f0fdf4;color:#15803d;border:1px solid #bbf7d0}
    .m-patch{background:#fffbeb;color:#b45309;border:1px solid #fde68a}
    .m-delete{background:#fff1f2;color:#be123c;border:1px solid #fecdd3}
    .dark .m-get{background:#0c1a3d;color:#93c5fd;border-color:#1e3a8a}
    .dark .m-post{background:#052e16;color:#86efac;border-color:#14532d}
    .dark .m-patch{background:#1c1402;color:#fbbf24;border-color:#78350f}
    .dark .m-delete{background:#1c0208;color:#fb7185;border-color:#881337}

    /* ── Live config indicator ───────────────────────────────────────── */
    .live-val{font-family:var(--mono);font-size:.82em;background:var(--teal-light);color:var(--teal);border:1px solid var(--teal-mid);border-radius:4px;padding:1px 5px}
    .live-val.differs{background:#fff1f2;color:#be123c;border-color:#fecdd3}
    .dark .live-val.differs{background:#1c0208;color:#fb7185;border-color:#881337}
    #live-banner{display:none;background:var(--teal-light);border-bottom:1px solid var(--teal-mid);padding:6px 20px;font-size:.76rem;color:var(--teal);text-align:center}
    #live-banner.show{display:block}

    /* ── Pipeline diagram ────────────────────────────────────────────── */
    .pipeline{max-width:100%;display:flex;align-items:stretch;gap:0;margin-bottom:20px;overflow-x:auto;padding-bottom:4px;-webkit-overflow-scrolling:touch}
    .pipe-stage{display:flex;flex-direction:column;align-items:center;min-width:120px}
    .pipe-box{background:var(--teal);color:white;border-radius:var(--radius);padding:10px 12px;font-size:.76rem;font-weight:700;text-align:center;width:100%}
    .pipe-box.muted{background:var(--bg-subtle);border:1px solid var(--border);color:var(--text-muted)}
    .pipe-label{font-size:.68rem;color:var(--text-muted);text-align:center;margin-top:6px;padding:0 4px;line-height:1.4}
    .pipe-arrow{display:flex;align-items:flex-start;padding-top:14px;color:var(--border);font-size:1.1rem;padding-left:2px;padding-right:2px}

    /* ── Readiness states ────────────────────────────────────────────── */
    .state-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
    .state-pill{display:flex;align-items:center;gap:6px;padding:6px 14px;border-radius:99px;font-size:.78rem;font-weight:700;border:1px solid}
    .s-high{background:#f0fdf4;color:#15803d;border-color:#bbf7d0}
    .s-mod{background:#fefce8;color:#a16207;border-color:#fef08a}
    .s-low{background:#fff7ed;color:#c2410c;border-color:#fed7aa}
    .s-over{background:#fff1f2;color:#be123c;border-color:#fecdd3}
    .dark .s-high{background:#052e16;color:#86efac;border-color:#14532d}
    .dark .s-mod{background:#1a1200;color:#fbbf24;border-color:#78350f}
    .dark .s-low{background:#1a0a00;color:#fb923c;border-color:#7c2d12}
    .dark .s-over{background:#1c0208;color:#fb7185;border-color:#881337}

    /* ── Weight bars (readiness formula visual) ─────────────────────── */
    .weight-bar-group{margin-bottom:18px}
    .weight-bar-label{font-size:.78rem;font-weight:600;margin-bottom:6px;display:flex;justify-content:space-between}
    .weight-bar-track{height:10px;background:var(--border);border-radius:99px;overflow:hidden;display:flex}
    .weight-seg{height:100%;display:flex;align-items:center;justify-content:center;font-size:.55rem;font-weight:700;color:white;transition:width .4s}
    .ws-il{background:#0d9488}
    .ws-el{background:#0369a1}
    .ws-gl{background:#7c3aed}
    .ws-cog{background:#0d9488}
    .ws-mot{background:#b45309}
    .ws-env{background:#0369a1}
    .ws-eff{background:#0d9488}
    .ws-conf{background:#b45309}
    .ws-pers{background:#7c3aed}
    .weight-legend{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
    .wl-item{display:flex;align-items:center;gap:4px;font-size:.72rem;color:var(--text-muted)}
    .wl-dot{width:9px;height:9px;border-radius:50%;flex-shrink:0}

    /* ── Governance flowchart ────────────────────────────────────────── */
    .flow{display:flex;flex-direction:column;gap:0;margin-bottom:20px}
    .flow-row{display:flex;align-items:center;gap:0}
    .flow-box{border:1px solid var(--border);border-radius:6px;padding:7px 12px;font-size:.78rem;background:var(--bg-subtle);white-space:nowrap;flex-shrink:0}
    .flow-box.gate{background:var(--teal-light);border-color:var(--teal-mid);color:var(--teal);font-weight:700}
    .flow-box.action{background:#f0fdf4;border-color:#bbf7d0;color:#15803d;font-weight:700}
    .dark .flow-box.action{background:#052e16;border-color:#14532d;color:#86efac}
    .flow-box.warn{background:#fff7ed;border-color:#fed7aa;color:#c2410c;font-weight:700}
    .dark .flow-box.warn{background:#1a0a00;border-color:#7c2d12;color:#fb923c}
    .flow-line{width:24px;height:1px;background:var(--border);flex-shrink:0}
    .flow-down{width:1px;height:16px;background:var(--border);margin:0 0 0 18px}
    .flow-label{font-size:.65rem;color:var(--text-faint);margin-left:5px}

    /* ── Mode comparison ─────────────────────────────────────────────── */
    .mode-card{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;margin-bottom:10px}
    .mode-header{padding:10px 14px;font-weight:700;font-size:.84rem;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px}
    .mode-body{padding:12px 14px;font-size:.82rem;color:var(--text-muted)}
    .mode-body p{margin-bottom:6px;font-size:.82rem}
    .mode-body p:last-child{margin-bottom:0}
    .mode-proxy .mode-header{background:#f0fdf4;color:#15803d}
    .mode-sw .mode-header{background:#eff6ff;color:#1d4ed8}
    .mode-ext .mode-header{background:var(--teal-light);color:var(--teal)}
    .dark .mode-proxy .mode-header{background:#052e16}
    .dark .mode-sw .mode-header{background:#0c1a3d}
    .dark .mode-ext .mode-header{background:var(--teal-light)}

    /* ── Governance gate table ───────────────────────────────────────── */
    .gate-tbl td:first-child{font-weight:700;color:var(--teal);font-family:var(--mono);white-space:nowrap}

    /* ── Step type cards ─────────────────────────────────────────────── */
    .step-type-card{border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;margin-bottom:10px}
    .step-type-card .st-name{font-weight:700;font-size:.88rem;margin-bottom:4px;display:flex;align-items:center;gap:8px}
    .step-type-card .st-body{font-size:.83rem;color:var(--text-muted);line-height:1.6}
    .step-type-card .st-ags{margin-top:8px;font-size:.8rem;background:var(--teal-light);color:var(--teal);border-radius:5px;padding:6px 10px}

    /* ── Timeline ────────────────────────────────────────────────────── */
    .timeline{position:relative;padding-left:28px;margin-bottom:18px}
    .timeline::before{content:'';position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:var(--border)}
    .tl-item{position:relative;margin-bottom:18px}
    .tl-item::before{content:'';position:absolute;left:-24px;top:5px;width:12px;height:12px;border-radius:50%;background:var(--teal);border:2px solid var(--bg)}
    .tl-title{font-weight:700;font-size:.86rem;margin-bottom:3px}
    .tl-body{font-size:.82rem;color:var(--text-muted);line-height:1.5}

    /* ── Tag list ────────────────────────────────────────────────────── */
    .tag-list{display:flex;flex-wrap:wrap;gap:5px;margin:10px 0}

    /* ── Responsive ──────────────────────────────────────────────────── */
    @media(max-width:860px){
      #topbar{display:flex}
      #sidebar{width:min(88vw,var(--sidebar-w));transform:translateX(-100%)}
      #sidebar.open{transform:translateX(0);box-shadow:0 0 0 9999px rgba(0,0,0,.4)}
      #content{margin-left:0;padding:22px 18px 60px}
      .nav-link{min-height:38px}
    }
    @media(max-width:540px){
      h1{font-size:1.5rem}
      h2{font-size:1.14rem;margin-top:38px}
      h3{font-size:.96rem}
      p,ul,ol{font-size:.88rem}
      #topbar{padding:8px 12px}
      #content{padding:20px 14px 56px}
      .lead{font-size:.94rem;margin-bottom:22px}
      .back-link{margin-bottom:20px}
      .source-tag{display:flex;width:max-content;margin:6px 0 0}
      .card{padding:12px}
      .g3,.g4{grid-template-columns:1fr}
      .g2{grid-template-columns:1fr}
      th,td{padding:8px 10px}
      pre{padding:13px 14px}
      pre code{font-size:.72rem}
      .pipeline{flex-direction:column;align-items:flex-start}
      .pipe-stage{width:100%;min-width:0}
      .pipe-arrow{align-self:center;min-height:24px;padding:0;transform:rotate(90deg)}
      .flow-row{overflow-x:auto;padding-bottom:4px;-webkit-overflow-scrolling:touch}
      .state-pill{flex:1 1 150px;justify-content:center}
    }

    /* ── Misc ────────────────────────────────────────────────────────── */
    .mono{font-family:var(--mono)}
    .muted{color:var(--text-muted)}
    .teal{color:var(--teal)}
    #sidebar::-webkit-scrollbar{width:3px}
    #sidebar::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}