:root{
  --bg:#F7F7FB;--surface:#FFFFFF;--surface-2:#EEEEF6;--ink:#191A3E;--ink-2:#4A4B6E;--ink-3:#77789A;
  --line:#DCDCEA;--brand:#2B2C63;--accent:#0E8C8B;--accent-soft:#E0F3F2;--amber:#A9720C;--amber-soft:#FBF1DC;
  --good:#0E7C55;--good-soft:#E3F4EC;--bad:#B23B3B;--bad-soft:#FBE9E9;
  --heat-0:#F0F0F6;--heat-1:#CDEBEA;--heat-2:#7FCAC8;--heat-3:#0E8C8B;
  --radius:12px;--shadow:0 1px 2px rgba(25,26,62,.06),0 4px 16px rgba(25,26,62,.05);
  --display:'Space Grotesk',system-ui,sans-serif;--body:'IBM Plex Sans',system-ui,sans-serif;--mono:'IBM Plex Mono',ui-monospace,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0F1028;--surface:#17183A;--surface-2:#202150;--ink:#ECECF7;--ink-2:#B8B9D6;--ink-3:#8A8BB0;
  --line:#2E2F63;--brand:#A9ABF0;--accent:#2FC1BE;--accent-soft:#113D46;--amber:#E0A93E;--amber-soft:#3A2E17;
  --good:#46C595;--good-soft:#123A30;--bad:#EE7A7A;--bad-soft:#3F1E28;
  --heat-0:#1C1D44;--heat-1:#16475A;--heat-2:#1E7E86;--heat-3:#2FC1BE;--shadow:none;color-scheme:dark;
}}
:root[data-theme="dark"]{
  --bg:#0F1028;--surface:#17183A;--surface-2:#202150;--ink:#ECECF7;--ink-2:#B8B9D6;--ink-3:#8A8BB0;
  --line:#2E2F63;--brand:#A9ABF0;--accent:#2FC1BE;--accent-soft:#113D46;--amber:#E0A93E;--amber-soft:#3A2E17;
  --good:#46C595;--good-soft:#123A30;--bad:#EE7A7A;--bad-soft:#3F1E28;
  --heat-0:#1C1D44;--heat-1:#16475A;--heat-2:#1E7E86;--heat-3:#2FC1BE;--shadow:none;color-scheme:dark;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 var(--body);overflow-x:hidden}
a{color:inherit}
h1,h2,h3,h4{font-family:var(--display);line-height:1.15;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2rem,5vw,3.2rem)}h2{font-size:clamp(1.4rem,3vw,1.8rem)}h3{font-size:1.15rem}
p{margin:0 0 1em}
ul{margin:0;padding-left:1.1em}li{margin:.25em 0}
button,input,select{font:inherit;color:inherit}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
main{min-height:70vh;padding-top:28px;padding-bottom:64px;outline:none}
.eyebrow{font-family:var(--mono);font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:.6em;display:block}
.muted{color:var(--ink-2)}.small{font-size:.875rem}

/* header */
.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top-inner{display:flex;align-items:center;justify-content:space-between;height:60px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--display);font-weight:700;font-size:1.05rem}
.brand-sub{color:var(--accent);margin-left:6px}
.mark{width:26px;height:18px;position:relative}
.mark::before,.mark::after{content:"";position:absolute;top:0;width:18px;height:18px;border-radius:50%;border:3px solid var(--accent)}
.mark::before{left:0}.mark::after{left:8px;border-color:var(--ink)}
.nav{display:flex;align-items:center;gap:4px}
.nav a{text-decoration:none;padding:8px 12px;border-radius:8px;font-size:.93rem;color:var(--ink-2)}
.nav a:hover{background:var(--surface-2);color:var(--ink)}
.nav a.active{color:var(--ink);background:var(--surface-2);font-weight:600}
.theme-btn,.menu-btn{background:none;border:1px solid var(--line);border-radius:8px;padding:6px 10px;cursor:pointer}
.menu-btn{display:none}
@media (max-width:1060px){
  .menu-btn{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:60px;flex-direction:column;align-items:stretch;background:var(--surface);border-bottom:1px solid var(--line);padding:8px 16px 16px}
  .nav.open{display:flex}
  .theme-btn{align-self:flex-start;margin-top:6px}
}

/* primitives */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.grid{display:grid;gap:16px}
.grid>*{min-width:0}
.g2{grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}
.g3{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
@media (max-width:400px){.g2,.g3{grid-template-columns:1fr}}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;padding:3px 9px;border-radius:999px;background:var(--surface-2);color:var(--ink-2);border:1px solid transparent;text-decoration:none;max-width:100%}
.chip.accent{background:var(--accent-soft);color:var(--accent)}
.chip.amber{background:var(--amber-soft);color:var(--amber)}
.chip.btn{cursor:pointer;border-color:var(--line);background:var(--surface)}
.chip.btn[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:10px;border:1px solid var(--line);background:var(--surface);cursor:pointer;text-decoration:none;font-weight:500}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn:hover{filter:brightness(1.05)}
.linkcard{display:block;text-decoration:none;transition:transform .12s,border-color .12s}
.linkcard:hover{border-color:var(--accent);transform:translateY(-1px)}
.dots{display:inline-flex;gap:3px;vertical-align:middle}
.dots i{width:7px;height:7px;border-radius:50%;background:var(--line)}
.dots i.on{background:var(--accent)}
.section{margin-top:48px}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;flex-wrap:wrap;margin-bottom:16px}
.section-head h2{margin:0}
input[type=search],select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface)}
.toolbar{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin:16px 0 24px}
.toolbar input{flex:1 1 260px}
.toolbar select{flex:0 1 240px}

/* hero */
.hero{padding:36px 0 8px}
.hero h1{max-width:18ch}
.hero .lede{font-size:1.15rem;color:var(--ink-2);max-width:62ch}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
.stats{display:flex;gap:28px;flex-wrap:wrap;margin-top:28px}
.stat b{display:block;font-family:var(--display);font-size:1.8rem;line-height:1}
.stat span{font-size:.85rem;color:var(--ink-2)}
.layers{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface)}
.layers>div{padding:18px;border-right:1px solid var(--line)}
.layers>div:last-child{border-right:0}
.layers .n{font-family:var(--mono);font-size:.75rem;color:var(--accent)}
@media (max-width:760px){.layers{grid-template-columns:1fr 1fr}.layers>div:nth-child(2){border-right:0}.layers>div:nth-child(-n+2){border-bottom:1px solid var(--line)}}
.stage-lane{margin-bottom:28px}
.stage-lane h3{display:flex;gap:10px;align-items:baseline;flex-wrap:wrap}
.stage-lane h3 small{font-family:var(--body);font-weight:400;color:var(--ink-3);font-size:.9rem}
.dcard h3{margin-bottom:.35em}
.dcard p{color:var(--ink-2);font-size:.92rem;margin-bottom:.8em}

/* detail */
.dhead{display:grid;grid-template-columns:1fr 320px;gap:28px;align-items:start}
@media (max-width:900px){.dhead{grid-template-columns:1fr}}
.facts{display:grid;gap:12px}
.fact .k{font-family:var(--mono);font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-3)}
.fact .v{font-size:.95rem}
.thesis{background:var(--brand);color:#fff;border-radius:var(--radius);padding:22px 24px;margin:20px 0}
:root[data-theme="dark"] .thesis{background:var(--surface-2);color:var(--ink)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .thesis{background:var(--surface-2);color:var(--ink)}}
.thesis .eyebrow{color:#7FE0DD}
.thesis p{font-size:1.15rem;font-family:var(--display);margin:0}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin:28px 0 24px;overflow-x:auto;scrollbar-width:none}
.tabs button{background:none;border:0;padding:10px 14px;cursor:pointer;color:var(--ink-2);border-bottom:2px solid transparent;white-space:nowrap;font-weight:500}
.tabs button[aria-selected="true"]{color:var(--ink);border-color:var(--accent)}
.logic{counter-reset:s;display:grid;gap:12px}
.logic .step{display:grid;grid-template-columns:36px 1fr;gap:14px;align-items:start}
.logic .step::before{counter-increment:s;content:counter(s);font-family:var(--mono);width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent);font-weight:500}
.logic .step b{display:block}
.vs{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.vs>div{padding:14px 16px;border-bottom:1px solid var(--line);font-size:.95rem}
.vs>div:nth-child(odd){background:var(--good-soft)}
.vs>div:nth-child(even){background:var(--bad-soft)}
.vs>.h{font-family:var(--mono);font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;font-weight:500}
.vs>.h.g{color:var(--good)}.vs>.h.b{color:var(--bad)}
@media (max-width:620px){.vs{grid-template-columns:1fr}.vs>.h.b{display:none}.vs>div:nth-child(even):not(.h)::before{content:"Weak: ";font-weight:600;color:var(--bad)}.vs>div:nth-child(odd):not(.h)::before{content:"Great: ";font-weight:600;color:var(--good)}}
.outline{display:grid;gap:10px}
.osec{display:grid;grid-template-columns:44px 1fr;gap:14px;padding:16px 18px;transition:opacity .15s}
.osec .num{font-family:var(--mono);color:var(--accent);font-size:.95rem;padding-top:2px}
.osec.dim{opacity:.35}
.osec h4{margin:0 0 .2em;font-size:1.05rem}
.osec .purpose{color:var(--ink-2);font-size:.93rem;margin-bottom:.6em}
.osec ul{font-size:.9rem;margin-bottom:.7em;columns:2;column-gap:28px}
@media (max-width:620px){.osec ul{columns:1}.osec{grid-template-columns:1fr}}
.depth-summary{border-left:3px solid var(--accent)}
.depth-detail{border-left:3px solid var(--brand)}
.depth-appendix{border-left:3px solid var(--line)}
.rolecard h4{margin:0}
.rolecard .need{margin:.5em 0 .8em}
.showhide{display:grid;grid-template-columns:1fr 1fr;gap:12px;font-size:.88rem}
.showhide .lbl{font-family:var(--mono);font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px}
.showhide .s .lbl{color:var(--good)}.showhide .x .lbl{color:var(--bad)}
@media (max-width:420px){.showhide{grid-template-columns:1fr}}
.obj{border-left:3px solid var(--amber);padding:4px 0 4px 16px;margin-bottom:18px}
.obj b{display:block;margin-bottom:4px}
.callout{background:var(--accent-soft);border-radius:var(--radius);padding:16px 18px}
.callout.amber{background:var(--amber-soft)}

/* matrix */
.matrix-wrap{overflow:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);max-height:78vh}
table.matrix{width:100%;border-collapse:separate;border-spacing:0;font-size:.85rem}
.matrix th,.matrix td{border-bottom:1px solid var(--line);padding:0}
.matrix thead th{position:sticky;top:0;background:var(--surface);z-index:2;height:150px;vertical-align:bottom;padding:0 0 10px}
.matrix thead th a{writing-mode:vertical-rl;transform:rotate(180deg);text-decoration:none;font-weight:500;display:inline-block;padding:0 12px}
.matrix tbody th{position:sticky;left:0;background:var(--surface);z-index:1;text-align:left;font-weight:500;padding:8px 14px;min-width:230px;border-right:1px solid var(--line)}
.matrix tbody th a{text-decoration:none}
.matrix thead th:first-child{left:0;z-index:3;text-align:left;vertical-align:bottom;padding:12px 14px}
.matrix td a{display:block;width:44px;height:36px}
.matrix td.h0 a{background:var(--heat-0)}.matrix td.h1 a{background:var(--heat-1)}.matrix td.h2 a{background:var(--heat-2)}.matrix td.h3 a{background:var(--heat-3)}
.matrix td a:hover{outline:2px solid var(--ink);outline-offset:-2px}
.matrix tr.stage-row th{background:var(--surface-2);font-family:var(--mono);font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-2)}
.legend{display:flex;gap:14px;align-items:center;font-size:.82rem;color:var(--ink-2);flex-wrap:wrap}
.legend i{display:inline-block;width:14px;height:14px;border-radius:3px;margin-right:5px;vertical-align:-2px}

/* builder */
.builder{display:grid;grid-template-columns:320px 1fr;gap:28px;align-items:start}
@media (max-width:900px){.builder{grid-template-columns:1fr}}
.builder aside{position:sticky;top:80px}
@media (max-width:900px){.builder aside{position:static}}
.check{display:flex;gap:10px;align-items:flex-start;padding:7px 0;cursor:pointer;font-size:.93rem}
.check input{margin-top:5px;accent-color:var(--accent)}
.doc{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
@media (max-width:620px){.doc{padding:20px}}
.doc h2{margin-top:0}
.doc .part{margin-top:28px;padding-top:20px;border-top:1px solid var(--line)}
.forwhom{font-family:var(--mono);font-size:.75rem;color:var(--ink-3)}
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:10px;font-size:.9rem;opacity:0;transition:opacity .2s;pointer-events:none;z-index:50}
.toast.show{opacity:1}

.foot{border-top:1px solid var(--line);padding:24px 0;font-size:.85rem;color:var(--ink-3)}
@media print{.top,.foot,.builder aside,.noprint{display:none!important}.builder{display:block}.doc{border:0;box-shadow:none;padding:0}body{background:#fff}}

/* app states */
.loading{padding:80px 0;text-align:center;color:var(--ink-3);font-family:var(--mono);font-size:.85rem;letter-spacing:.08em;text-transform:uppercase}
.narrow{max-width:560px;margin:40px auto}
.card.narrow{margin:40px auto}
.crumbs{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px}
.crumbs p{margin:0}
.small-btn{padding:6px 12px;font-size:.88rem}
.btn.danger{color:var(--bad);border-color:color-mix(in srgb,var(--bad) 40%,var(--line))}
.btn.danger.armed{background:var(--bad);color:#fff;border-color:var(--bad)}
.btn[disabled]{opacity:.6;cursor:progress}
.auth-link{border:1px solid var(--line)}
.nav a.auth-link.on{color:var(--accent);border-color:var(--accent)}
.count{font-family:var(--mono);font-size:.72rem;color:var(--ink-3)}
.toast.bad{background:var(--bad);color:#fff}
.input,textarea{width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:9px;background:var(--surface);font:inherit;color:inherit}
textarea{resize:vertical;line-height:1.45}
.input:focus,textarea:focus,select:focus{outline:2px solid color-mix(in srgb,var(--accent) 50%,transparent);outline-offset:0;border-color:var(--accent)}
.input[readonly]{background:var(--surface-2);color:var(--ink-2)}
ul.plain{list-style:none;padding:0;margin:0}
ul.plain li{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}
[hidden]{display:none!important}

/* editor */
.editor{max-width:980px}
.editor-head{display:flex;justify-content:space-between;align-items:end;gap:16px;flex-wrap:wrap;position:sticky;top:60px;background:var(--bg);z-index:5;padding:10px 0 12px;border-bottom:1px solid var(--line)}
.editor-head h1{font-size:clamp(1.5rem,3.5vw,2.2rem);margin:0}
.editor-actions{display:flex;gap:8px}
.editor-foot{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:32px;padding-top:20px;border-top:1px solid var(--line)}
.jump{display:flex;gap:4px;flex-wrap:wrap;margin:14px 0 4px}
.jump a{font-size:.82rem;text-decoration:none;padding:4px 10px;border-radius:999px;background:var(--surface-2);color:var(--ink-2)}
.fs{margin-top:28px;scroll-margin-top:150px}
.fs-head h2{font-size:1.2rem;margin:0 0 4px}
.fs-head p{margin:0 0 12px}
.fs-body{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.fgrid>*{min-width:0}
.field{display:flex;flex-direction:column;gap:5px}
.field>span{font-size:.82rem;font-weight:600;color:var(--ink-2)}
.field small{color:var(--ink-3);font-size:.76rem}
.field.wide,.check.wide{grid-column:1/-1}
.req{color:var(--bad)}
@media (max-width:680px){.fgrid{grid-template-columns:1fr}}
.rep-rows{display:grid;gap:10px;margin-bottom:12px}
.rep-row{display:grid;grid-template-columns:1fr auto;gap:10px;border:1px solid var(--line);border-radius:10px;padding:12px;background:var(--bg)}
.rep-fields{display:grid;grid-template-columns:1fr 1fr;gap:10px;min-width:0}
@media (max-width:680px){.rep-fields{grid-template-columns:1fr}}
.rep-ctl{display:flex;flex-direction:column;gap:4px}
.rep-ctl button{width:30px;height:30px;border:1px solid var(--line);background:var(--surface);border-radius:7px;cursor:pointer;color:var(--ink-2)}
.rep-ctl button[data-del]:hover{color:var(--bad);border-color:var(--bad)}
.chip.pick{cursor:pointer;background:var(--surface);border-color:var(--line);white-space:normal}
.chip.pick input{accent-color:var(--accent);margin:0}
.chip.pick:has(input:checked){background:var(--accent-soft);color:var(--accent);border-color:var(--accent)}
.aud-list{display:grid;gap:8px}
.aud{border:1px solid var(--line);border-radius:10px;background:var(--bg)}
.aud summary{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:8px 12px;cursor:pointer;list-style:none}
.aud summary::-webkit-details-marker{display:none}
.aud summary select{width:auto;padding:5px 8px}
.aud .check{padding:0}
.aud .fgrid{padding:0 12px 12px}
.aud:has(input[name=aud_on]:checked){border-color:var(--accent)}
.asset-picks{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:4px 16px}
.asset-pick{display:flex;justify-content:space-between;align-items:center;gap:8px;border-bottom:1px solid var(--line)}
.asset-pick .check.small{font-size:.8rem;color:var(--ink-3);white-space:nowrap}
.editor textarea{field-sizing:content;min-height:3.2em;max-height:420px}
@media (max-width:680px){.editor-head{position:static}}