:root{
    --bg-0:#08090a; --bg-1:#101113; --bg-2:#17191b; --bg-3:#202325; --bg-4:#2b2e31;
    --ink-0:#f4f2ed; --ink-1:#d6d1c6; --ink-2:#9a948a; --ink-3:#6f6a61; --ink-4:#48453f;
    --line:rgba(255,255,255,0.07); --line-strong:rgba(255,255,255,0.13);
    --accent:#1fd3a3; --accent-deep:#0aa17c; --accent-soft:rgba(31,211,163,0.10); --accent-glow:rgba(31,211,163,0.24);
    --em:#34d399; --ok:#10b981;
    --disp:'Satoshi',sans-serif; --mono:'JetBrains Mono',ui-monospace,monospace;
    --sat:'Satoshi',sans-serif; --teal:#1fd3a3; --dek:#9a948a; --ink:#f4f2ed; --bg:#08090a;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    background:
      radial-gradient(1200px 680px at 88% -12%, rgba(31,211,163,0.07), transparent 60%),
      radial-gradient(1000px 560px at 2% 6%, rgba(10,161,124,0.05), transparent 55%),
      var(--bg-0);
    color:var(--ink-0);
    font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
    -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale; line-height:1.5;
  }
  ::selection{background:var(--accent);color:#052e24}
  a{color:inherit;text-decoration:none}

  /* header */
  .topbar{position:sticky;top:0;z-index:40;height:66px;display:flex;align-items:center;justify-content:space-between;
    padding:0 44px;background:rgba(8,9,10,0.72);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line)}
  .brand{font-family:'Inter',sans-serif;font-weight:600;font-size:21px;letter-spacing:.32em;color:var(--ink-0);text-transform:uppercase}
  .brand .t{color:var(--accent)}
  .hright{display:flex;align-items:center;gap:20px}
  .hright .crumb{font-size:13px;color:var(--ink-2);letter-spacing:.04em}
  .hright .crumb b{color:var(--ink-1);font-weight:600}
  .doc-tag{font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);
    border:1px solid rgba(31,211,163,0.34);border-radius:100px;padding:6px 14px}
  @media(max-width:680px){ .topbar{padding:0 20px;height:58px} .hright .crumb{display:none} }

  .wrap{max-width:1660px;margin:0 auto;padding:0 44px}
  @media(max-width:680px){ .wrap{padding:0 20px} }
  section{padding:76px 0;border-bottom:1px solid var(--line)}
  section:last-of-type{border-bottom:none}
  .eyebrow{font-family:var(--disp);font-size:12.5px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);margin-bottom:18px}
  h1{font-family:var(--disp);font-size:clamp(28px,3.4vw,46px);font-weight:500;letter-spacing:-.02em;line-height:1.05}
  h2{font-family:var(--disp);font-size:clamp(27px,3.4vw,40px);font-weight:600;letter-spacing:-.02em;line-height:1.06}
  h3{font-family:var(--disp);font-weight:600}
  .lede{font-size:clamp(17px,1.6vw,21px);color:var(--ink-1);line-height:1.5;max-width:76ch;font-weight:300}
  p.body{font-size:15.5px;color:var(--ink-2);line-height:1.6;max-width:74ch}
  .sec-head{max-width:80ch;margin-bottom:42px}
  .sec-head h2{margin-bottom:16px}

  /* hero */
  .mast h1{margin:8px 0 22px;max-width:18ch}
  .mast .lede{margin-bottom:28px}
  .principles{display:flex;flex-wrap:wrap;gap:10px}
  .pchip{font-size:13px;color:var(--ink-1);background:var(--bg-1);border:1px solid var(--line);border-radius:100px;padding:9px 16px;display:flex;align-items:center;gap:9px}
  .pchip .cd{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:0 0 auto}

  /* org-level banner */
  .seatbar{margin-top:34px;display:flex;align-items:center;gap:16px;border:1px solid rgba(31,211,163,0.24);border-radius:14px;
    padding:20px 26px;background:radial-gradient(120% 140% at 0% 0,rgba(31,211,163,0.08),transparent 60%),var(--bg-1)}
  .seatbar .big{font-family:var(--disp);font-weight:600;font-size:clamp(18px,2vw,24px);letter-spacing:-.01em;white-space:nowrap}
  .seatbar .big .a{color:var(--accent)}
  .seatbar p{font-size:14px;color:var(--ink-2);line-height:1.5;margin:0}

  /* tier cards */
  .tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
  .tier{position:relative;border:1px solid var(--line);border-radius:18px;background:var(--bg-1);padding:32px 28px;display:flex;flex-direction:column}
  .tier.rec{border-color:rgba(31,211,163,0.4);background:radial-gradient(130% 90% at 50% 0,rgba(31,211,163,0.09),transparent 62%),var(--bg-1);box-shadow:0 30px 90px rgba(0,0,0,0.4)}
  .tier .ribbon{position:absolute;top:-11px;left:28px;font-family:var(--disp);font-size:10.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
    color:#052e24;background:var(--accent);border-radius:100px;padding:5px 13px}
  .tier .tname{font-family:var(--disp);font-size:26px;font-weight:600;letter-spacing:-.01em}
  .tier .ttag{font-size:13.5px;color:var(--accent);font-weight:500;margin-top:5px}
  .tier .twho{font-size:13.5px;color:var(--ink-2);line-height:1.5;margin:14px 0 20px;min-height:60px}
  .tier .commit{font-family:var(--mono);font-size:12px;color:var(--ink-3);text-transform:uppercase;letter-spacing:.08em;margin-bottom:8px}
  .tier .headline{font-family:var(--disp);letter-spacing:-.02em;line-height:1;margin-bottom:4px}
  .tier .headline .num{font-size:40px;font-weight:600}
  .tier .headline .unit{font-size:15px;color:var(--ink-2);font-weight:500}
  .tier .hsub{font-size:12.5px;color:var(--ink-3);margin-bottom:22px}
  .tier .rates{display:flex;flex-direction:column;gap:0;margin-bottom:22px}
  .tier .rate{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-top:1px solid var(--line);font-size:13px}
  .tier .rate .rl{color:var(--ink-2)}
  .tier .rate .rv{font-family:var(--mono);font-size:12.5px;color:var(--ink-0)}
  .tier .incl{list-style:none;display:flex;flex-direction:column;gap:10px;margin-bottom:24px}
  .tier .incl li{font-size:13px;color:var(--ink-1);padding-left:24px;position:relative;line-height:1.4}
  .tier .incl li::before{content:"";position:absolute;left:2px;top:4px;width:13px;height:13px;border-radius:50%;
    background:var(--accent-soft);box-shadow:inset 0 0 0 1px rgba(31,211,163,.4)}
  .tier .incl li::after{content:"";position:absolute;left:6px;top:7px;width:5px;height:3px;border-left:1.5px solid var(--accent);border-bottom:1.5px solid var(--accent);transform:rotate(-45deg)}
  .tier .cta{margin-top:auto;display:inline-flex;align-items:center;justify-content:center;font-family:var(--disp);font-weight:600;font-size:14px;
    border-radius:100px;padding:13px 20px;transition:background .2s,color .2s,border-color .2s;cursor:pointer;text-align:center}
  .tier .cta.outline{color:var(--accent);border:1.5px solid rgba(31,211,163,.42);background:transparent}
  .tier .cta.outline:hover{background:var(--accent);color:#052e24;border-color:var(--accent)}
  .tier .cta.solid{color:#052e24;background:var(--accent);border:1.5px solid var(--accent)}
  .tier .cta.solid:hover{background:var(--em);border-color:var(--em)}
  @media(max-width:920px){ .tiers{grid-template-columns:1fr;max-width:460px;margin:0 auto} }

  /* unit-cost matrix */
  .tblwrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--bg-1)}
  table.px{border-collapse:collapse;width:100%;min-width:820px}
  .px th,.px td{text-align:left;padding:15px 20px;border-bottom:1px solid var(--line);vertical-align:middle}
  .px thead th{background:#101315}
  .px th.metric,.px td.metric{width:34%;min-width:230px}
  .px td.metric{font-family:var(--disp);font-weight:600;font-size:14px;color:var(--ink-0)}
  .px td.metric .sub{display:block;font-family:'Inter';font-weight:400;font-size:11.5px;color:var(--ink-3);margin-top:2px;letter-spacing:0}
  .px thead .tn{font-family:var(--disp);font-weight:700;font-size:16px}
  .px thead .tt{display:block;font-weight:400;font-size:11px;color:var(--ink-3);margin-top:2px}
  .px td.val{font-family:var(--mono);font-size:13.5px;color:var(--ink-1);width:22%}
  .px .big{font-size:15px;color:var(--ink-0)}
  .px tr.grp td{background:#0b0d0e;font-family:var(--disp);font-weight:700;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);padding:11px 20px}
  .px tr:hover td:not(.metric){background:rgba(255,255,255,.015)}
  .px .yes{color:var(--accent);font-family:var(--disp);font-weight:600}
  .matrix-note{font-size:12.5px;color:var(--ink-3);margin-top:16px;line-height:1.55}

  /* metering explainer */
  .meter-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
  .mcard{border:1px solid var(--line);border-radius:14px;background:var(--bg-1);padding:26px 24px}
  .mcard .ci{width:40px;height:40px;border-radius:11px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
  .mcard .ci svg{width:21px;height:21px}
  .mcard h4{font-family:var(--disp);font-size:16px;font-weight:600;margin-bottom:9px;letter-spacing:-.01em}
  .mcard p{font-size:13px;color:var(--ink-2);line-height:1.55}
  .mcard .u{font-family:var(--mono);font-size:11.5px;color:var(--accent);margin-top:12px;display:block}
  @media(max-width:900px){ .meter-grid{grid-template-columns:1fr 1fr} }
  @media(max-width:520px){ .meter-grid{grid-template-columns:1fr} }

  /* worked example */
  .example{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
  .ex-tbl{border:1px solid var(--line);border-radius:14px;background:var(--bg-1);overflow:hidden}
  .ex-row{display:grid;grid-template-columns:1.4fr 1fr auto;gap:14px;padding:14px 22px;border-bottom:1px solid var(--line);font-size:13.5px;align-items:baseline}
  .ex-row .el{color:var(--ink-1)}
  .ex-row .em2{font-family:var(--mono);font-size:12px;color:var(--ink-3)}
  .ex-row .er{font-family:var(--mono);font-size:13px;color:var(--ink-0);text-align:right;white-space:nowrap}
  .ex-row.total{background:rgba(31,211,163,0.06);border-bottom:none}
  .ex-row.total .el{font-family:var(--disp);font-weight:600;color:var(--ink-0)}
  .ex-row.total .er{color:var(--accent);font-weight:500;font-size:15px}
  .ex-copy p{font-size:15px;color:var(--ink-2);line-height:1.6;margin-bottom:14px}
  .ex-copy b{color:var(--ink-1);font-weight:600}
  .ex-copy .tag{font-family:var(--mono);font-size:12px;color:var(--accent);border:1px solid rgba(31,211,163,.3);border-radius:100px;padding:5px 12px;display:inline-block;margin-bottom:16px}
  @media(max-width:860px){ .example{grid-template-columns:1fr;gap:26px} }

  /* notes */
  .notes{display:grid;grid-template-columns:1fr 1fr;gap:22px}
  .note{border:1px solid var(--line);border-radius:14px;background:var(--bg-1);padding:26px 26px}
  .note h4{font-family:var(--disp);font-size:15px;font-weight:600;margin-bottom:10px}
  .note p{font-size:13.5px;color:var(--ink-2);line-height:1.6}
  .note.scope{border-color:rgba(224,178,75,0.28)}
  .note.scope h4{color:#e0b24b}
  @media(max-width:760px){ .notes{grid-template-columns:1fr} }

  .end{padding:40px 0 60px;text-align:center;font-size:12px;color:var(--ink-4);letter-spacing:.06em}
  .end b{color:var(--ink-3);font-weight:500}

  /* cost-control dashboard */
  .cc{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
  .cc-copy .eyebrow{margin-bottom:16px}
  .cc-copy h2{margin-bottom:16px}
  .cc-list{list-style:none;display:flex;flex-direction:column;gap:12px;margin-top:24px}
  .cc-list li{font-size:14.5px;color:var(--ink-1);padding-left:26px;position:relative;line-height:1.4}
  .cc-list li::before{content:"";position:absolute;left:2px;top:4px;width:14px;height:14px;border-radius:50%;background:var(--accent-soft);box-shadow:inset 0 0 0 1px rgba(31,211,163,.4)}
  .cc-list li::after{content:"";position:absolute;left:6px;top:7.5px;width:5px;height:3px;border-left:1.5px solid var(--accent);border-bottom:1.5px solid var(--accent);transform:rotate(-45deg)}
  .cc-panel{border:1px solid var(--line-strong);border-radius:18px;background:linear-gradient(180deg,var(--bg-1),var(--bg-0));padding:28px 30px;box-shadow:0 40px 120px rgba(0,0,0,.5),0 0 0 1px rgba(31,211,163,.04)}
  .cc-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
  .cc-live{display:inline-flex;align-items:center;gap:8px;font-family:var(--disp);font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
  .ccl-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);animation:ccpulse 1.9s ease-out infinite}
  @keyframes ccpulse{0%{box-shadow:0 0 0 0 rgba(31,211,163,.55)}70%{box-shadow:0 0 0 9px rgba(31,211,163,0)}100%{box-shadow:0 0 0 0 rgba(31,211,163,0)}}
  .cc-mo{font-family:var(--mono);font-size:11.5px;color:var(--ink-3)}
  .cc-total{font-family:var(--disp);font-weight:600;font-size:clamp(40px,4.6vw,56px);letter-spacing:-.03em;line-height:1;display:flex;align-items:baseline}
  .cc-cur{font-size:.58em;color:var(--ink-2);margin-right:3px}
  .cc-sub{font-size:13px;color:var(--ink-3);margin:9px 0 16px}
  .cc-budget{height:8px;background:var(--bg-3);border-radius:5px;overflow:hidden;margin-bottom:26px}
  .cc-bfill{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent-deep),var(--accent));border-radius:5px;transition:width 1.5s cubic-bezier(.4,0,.15,1)}
  .cc-bars{display:flex;flex-direction:column;gap:15px}
  .cc-bar{display:grid;grid-template-columns:62px 1fr auto;gap:14px;align-items:center}
  .cbl{font-size:12.5px;color:var(--ink-2)}
  .cbt{height:10px;background:var(--bg-3);border-radius:5px;overflow:hidden}
  .cbf{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent-deep),var(--accent));border-radius:5px;transition:width 1.4s cubic-bezier(.4,0,.15,1)}
  .cbv{font-family:var(--mono);font-size:12px;color:var(--ink-0);text-align:right;min-width:54px}
  .cc-foot{display:flex;justify-content:space-between;gap:12px;margin-top:24px;padding-top:18px;border-top:1px solid var(--line);font-family:var(--mono);font-size:11.5px;color:var(--ink-3);flex-wrap:wrap}
  .cc-panel.live .cc-bfill,.cc-panel.live .cbf{width:var(--w)}
  .cbf{transition-delay:.15s}
  @media(max-width:860px){ .cc{grid-template-columns:1fr;gap:32px} }
  @media(prefers-reduced-motion:reduce){ .ccl-dot{animation:none} .cc-bfill,.cbf{transition:none} }

  /* --- injected site chrome: header nav + mega-menu + striped footer --- */
  .topbar .brand{text-decoration:none}
  .nav{display:flex;align-items:center;gap:30px;font-family:var(--sat);font-size:12.5px;font-weight:500;letter-spacing:.08em;text-transform:uppercase}
  .nav a{color:var(--dek);text-decoration:none;cursor:pointer;transition:color .2s}
  .nav a:hover,.nav a.on{color:var(--ink)}
  .nav .login{position:relative;isolation:isolate;color:var(--teal);border:1px solid rgba(31,211,163,.4);border-radius:100px;padding:6px 15px;transition:color .2s,background .2s}
  .nav .login:hover{background:var(--teal);color:#08090a;border-color:var(--teal)}
  .nav .login .beam{position:absolute;inset:0;border-radius:100px;z-index:-1;pointer-events:none;padding:1.6px;
    -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;
    mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);mask-composite:exclude;
    filter:drop-shadow(0 0 4px rgba(31,211,163,.85))}
  .nav .login .beam::before{content:"";position:absolute;inset:-90%;
    background:conic-gradient(transparent 0 70%, rgba(31,211,163,.18) 76%, var(--teal) 86%, #d6fff5 90%, transparent 95%);
    animation:beamspin 2.6s linear infinite}
  @keyframes beamspin{to{transform:rotate(360deg)}}

  .mega{position:fixed;top:0;left:0;right:0;z-index:55;background:rgba(9,10,11,.94);
    backdrop-filter:blur(20px) saturate(125%);-webkit-backdrop-filter:blur(20px) saturate(125%);
    border-bottom:1px solid var(--line-strong);padding:94px 44px 52px;
    opacity:0;visibility:hidden;transform:translateY(-12px);
    transition:opacity .3s ease,transform .34s cubic-bezier(.4,0,.15,1),visibility 0s .34s}
  .mega.open{opacity:1;visibility:visible;transform:none;transition:opacity .3s ease,transform .34s cubic-bezier(.4,0,.15,1),visibility 0s}
  .mega-inner{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:56px;max-width:1660px;margin:0 auto;opacity:0;transform:translateY(6px);transition:opacity .3s ease .04s,transform .3s ease .04s}
  .mega.open .mega-inner{opacity:1;transform:none}
  .mega-col{flex:0 0 auto;min-width:150px}
  .mega-col .lbl{font-family:var(--sat);font-size:11px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--dek);margin-bottom:18px}
  .mega-col .big{display:flex;flex-direction:column;gap:13px}
  .mega-col .big a{font-family:var(--sat);font-weight:500;font-size:clamp(22px,2vw,30px);line-height:1.05;letter-spacing:-.01em;color:var(--ink);text-decoration:none;transition:color .2s}
  .mega-col .small{display:flex;flex-direction:column;gap:13px}
  .mega-col .small a{font-family:var(--sat);font-weight:500;font-size:15px;line-height:1.2;color:#cfc9bd;text-decoration:none;transition:color .2s}
  .mega-col a .ar{color:var(--dek);transition:color .2s,transform .2s}
  .mega-col .big a .ar{font-size:.6em}.mega-col .small a .ar{font-size:.82em}
  .mega-col a:hover{color:var(--teal)}
  .mega-col a:hover .ar{color:var(--teal);transform:translate(2px,-2px)}
  @media(max-width:680px){ .mega{display:none} }

  .s-footer{position:relative;background:var(--bg);display:flex;flex-direction:column;padding:12vh 6vw 12vh}
  .ft-menu{position:relative;z-index:2;width:100%;display:flex;justify-content:space-between;gap:6vw;flex-wrap:wrap}
  .ft-col .lbl{font-family:var(--sat);font-size:11px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--dek);margin-bottom:24px}
  .ft-left .big{display:flex;flex-direction:column;gap:14px}
  .ft-left .big a{font-family:var(--sat);font-weight:500;font-size:clamp(26px,2.4vw,34px);line-height:1.02;letter-spacing:-.01em;color:var(--ink);text-decoration:none;transition:color .2s;width:fit-content}
  .ft-left .big a:hover{color:var(--teal)}
  .ft-right{display:flex;gap:5vw;flex-wrap:wrap}
  .ft-right .small{display:flex;flex-direction:column;gap:13px}
  .ft-right .small a{font-family:var(--sat);font-weight:500;font-size:15px;line-height:1.2;color:#cfc9bd;text-decoration:none;transition:color .2s;width:fit-content}
  .ft-right .small a:hover{color:var(--teal)}
  .ft-legal{position:relative;z-index:2;width:100%;margin:5vh 0 0;display:flex;justify-content:space-between;gap:3vw;font-family:var(--sat);font-size:12px;color:var(--dek);letter-spacing:.02em}
  .ft-legal a{color:var(--dek);text-decoration:none;transition:color .2s}
  .ft-legal a:hover{color:var(--teal)}
  @property --sh{syntax:'<length>';inherits:true;initial-value:0px}
  .ft-motif{position:absolute;left:0;right:0;bottom:0;height:min(38vh,320px);overflow:hidden;pointer-events:none;z-index:1;display:flex;align-items:flex-start;justify-content:center;--sh:0px;
    background:repeating-linear-gradient(180deg,var(--teal) 0 16px,var(--bg) 16px 22px);background-position:0 var(--sh)}
  .ft-motif.flow{animation:ftFlow 3.4s linear infinite}
  .ft-motif span{font-family:var(--sat);font-weight:900;font-size:min(31vw,460px);line-height:.8;letter-spacing:-.04em;white-space:nowrap;color:var(--bg);
    -webkit-mask:repeating-linear-gradient(180deg,transparent 0 9px,#000 9px 22px);mask:repeating-linear-gradient(180deg,transparent 0 9px,#000 9px 22px);
    -webkit-mask-position:0 var(--sh);mask-position:0 var(--sh)}
  @keyframes ftFlow{to{--sh:22px}}
  @media(prefers-reduced-motion:reduce){ .ft-motif.flow{animation:none} }
  @media(max-width:900px){ .ft-menu{flex-direction:column;gap:5vh} .ft-right{gap:9vw} .ft-motif span{font-size:46vw} .ft-legal{flex-direction:column;gap:1vh} }

  /* transparent floating header (matches the site) + clearance for the content */
  .topbar{position:fixed;top:0;left:0;right:0;z-index:60;display:flex;align-items:center;justify-content:space-between;
    height:auto;padding:26px 44px;background:rgba(8,9,10,.85);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:none}
  .brand{font-size:21px;letter-spacing:.32em}
  main.wrap{padding-top:202px}
  @media(max-width:820px){ .topbar{padding:22px 22px} main.wrap{padding-top:162px} .mega{padding:88px 22px 44px} }
  /* ===== Foundation pages: wide editorial layout ===== */
  html{scroll-behavior:smooth}
  body{overflow-x:hidden}
  .fdn{padding-top:132px;padding-bottom:40px}
  .fdn-wrap{max-width:1280px;margin:0 auto;padding:0 48px}
  /* hero (full wrap width, left aligned) */
  .fdn-hero{max-width:940px;padding-bottom:10px}
  .fdn .kicker,.fdn .eyebrow{font-family:var(--disp);font-weight:600;font-size:12.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);margin:0 0 22px}
  .fdn h1{font-family:var(--disp);font-weight:500;font-size:clamp(40px,5.2vw,68px);line-height:1.01;letter-spacing:-.026em;color:var(--ink-0);margin:0}
  .fdn h1 em{font-style:normal;color:var(--accent)}
  .fdn .dek,.fdn .subtitle{font-size:clamp(17px,1.6vw,20px);line-height:1.55;color:var(--ink-2);max-width:60ch;margin:26px 0 0;font-weight:400}
  /* wide hero image band */
  .figw{margin:56px 0 56px;border-radius:18px;overflow:hidden;aspect-ratio:16/7}
  /* two-column body */
  .fdn-grid{display:grid;grid-template-columns:230px minmax(0,1fr);gap:96px;align-items:start;margin-top:8px}
  .fdn-rail{position:sticky;top:120px;align-self:start}
  .rail-label{font-family:var(--disp);font-weight:600;font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-3);margin:0 0 22px}
  .toc{display:flex;flex-direction:column;gap:1px;border-left:1px solid var(--line)}
  .toc a{position:relative;font-family:var(--disp);font-weight:500;font-size:15px;line-height:1.3;color:var(--ink-2);padding:10px 0 10px 18px;margin-left:-1px;transition:color .2s}
  .toc a::before{content:"";position:absolute;left:-1px;top:8px;bottom:8px;width:2px;transform:scaleY(0);transform-origin:center;background:var(--accent);transition:transform .2s}
  .toc a:hover{color:var(--ink-0)}
  .toc a.active{color:var(--ink-0)}
  .toc a.active::before{transform:scaleY(1)}
  .rail-meta{margin:0 0 22px}
  .rm-name{font-family:var(--disp);font-weight:600;font-size:16px;color:var(--ink-0);margin:0}
  .rm-role{font-size:13.5px;color:var(--ink-3);margin:3px 0 0}
  .rm-note{font-size:14px;line-height:1.5;color:var(--ink-2);margin:0}
  .rail-foot{margin-top:26px;font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-4)}
  .fdn-col{max-width:860px;min-width:0}
  /* content typography */
  .fdn-col article{font-size:16px;line-height:1.75;color:var(--ink-1)}
  .fdn-col p{font-size:16px;line-height:1.75;color:var(--ink-1);margin:0 0 22px}
  .fdn-col article p.first::first-letter{font-family:var(--disp);font-weight:600;float:left;font-size:3.4em;line-height:.82;padding:8px 16px 0 0;color:var(--accent)}
  .fdn section.chapter{padding:70px 0 0;scroll-margin-top:112px}
  .fdn section.chapter:first-child{padding-top:0}
  .fdn .kick{font-family:var(--disp);font-weight:600;font-size:12.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);margin:0 0 15px}
  .fdn h2{font-family:var(--disp);font-weight:500;font-size:clamp(28px,3.2vw,40px);line-height:1.08;letter-spacing:-.02em;color:var(--ink-0);margin:0 0 26px}
  .fdn h3{font-family:var(--disp);font-weight:600;font-size:20px;line-height:1.25;letter-spacing:-.005em;color:var(--ink-0);margin:40px 0 12px}
  .fdn .qlist{margin:6px 0 24px}
  .fdn .qlist p{color:var(--ink-2);margin:0 0 4px}
  .fdn .bigquote{font-family:var(--disp);font-weight:400;font-size:1.12em;line-height:1.5;color:var(--ink-1);border-left:2px solid rgba(31,211,163,.45);padding-left:30px;margin:34px 0 8px}
  .fdn .bigquote p{margin:0 0 18px}.fdn .bigquote p:last-child{margin:0}
  .fdn .lead-line{font-family:var(--disp);font-weight:500;font-size:clamp(23px,2.6vw,30px);line-height:1.18;letter-spacing:-.012em;color:var(--accent);margin:34px 0}
  .fdn .founder-sign{font-family:var(--disp);font-weight:600;font-size:16px;letter-spacing:.02em;color:var(--ink-0);margin-top:36px}
  .fdn .founder-sign span{display:block;font-weight:400;font-size:14px;color:var(--ink-3);letter-spacing:0;margin-top:2px}
  .fdn .closing{font-family:var(--disp);font-weight:500;font-size:clamp(27px,3.2vw,36px);line-height:1.28;letter-spacing:-.01em;max-width:22ch;margin:92px 0 0;color:var(--ink-0)}
  .fdn .pullout{font-family:var(--disp);font-weight:500;font-size:clamp(24px,2.9vw,32px);line-height:1.28;letter-spacing:-.014em;color:var(--ink-0);margin:64px 0 8px;max-width:26ch}
  .fdn .pullout .signoff{display:block;margin-top:28px;font-family:var(--disp);font-weight:600;font-size:12px;letter-spacing:.26em;text-transform:uppercase;color:var(--ink-3)}
  .fdn .pullout .signoff span{display:block;font-weight:400;font-size:12px;letter-spacing:.04em;text-transform:none;color:var(--ink-3);margin-top:4px}
  /* image placeholder (shared visual) */
  .ph{position:relative;width:100%;height:100%;border:1px dashed var(--line-strong);background:repeating-linear-gradient(135deg,rgba(255,255,255,.015) 0 14px,transparent 14px 28px),var(--bg-1);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:11px;text-align:center;color:var(--ink-3)}
  .ph .corner{position:absolute;top:16px;right:20px;font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;color:var(--ink-4);border:1px solid var(--line);border-radius:100px;padding:4px 11px}
  .ph .mk{width:48px;height:48px;border-radius:13px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center}
  .ph .mk svg{width:24px;height:24px}
  .ph .ml{font-family:var(--disp);font-size:12px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-2)}
  .ph .md{font-family:var(--mono);font-size:14px;color:var(--ink-1)}
  .ph .mhint{font-size:12.5px;color:var(--ink-3);max-width:52ch;line-height:1.5;padding:0 16px}
  /* in-column figure (alias for existing .essay-media markup) */
  .essay-media{position:relative;border-radius:14px;overflow:hidden;aspect-ratio:16/9;margin:40px 0;
    border:1px dashed var(--line-strong);background:repeating-linear-gradient(135deg,rgba(255,255,255,.015) 0 14px,transparent 14px 28px),var(--bg-1);
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:11px;text-align:center;color:var(--ink-3)}
  .essay-media .corner{position:absolute;top:16px;right:20px;font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;color:var(--ink-4);border:1px solid var(--line);border-radius:100px;padding:4px 11px}
  .essay-media .mk{width:48px;height:48px;border-radius:13px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center}
  .essay-media .mk svg{width:24px;height:24px}
  .essay-media .ml{font-family:var(--disp);font-size:12px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-2)}
  .essay-media .md{font-family:var(--mono);font-size:14px;color:var(--ink-1)}
  .essay-media .mhint{font-size:12.5px;color:var(--ink-3);max-width:52ch;line-height:1.5;padding:0 16px}
  .fade{opacity:0;transform:translateY(12px);animation:erise .8s cubic-bezier(.2,.7,.2,1) forwards}
  @keyframes erise{to{opacity:1;transform:none}}
  @media(prefers-reduced-motion:reduce){.fade{animation:none;opacity:1;transform:none}html{scroll-behavior:auto}}
  @media(max-width:920px){
    .fdn-grid{grid-template-columns:1fr;gap:0}
    .fdn-rail{position:static;margin-bottom:30px;border-bottom:1px solid var(--line);padding-bottom:8px}
    .toc{flex-direction:row;flex-wrap:wrap;border-left:0;gap:2px}
    .toc a{padding:8px 14px;margin-left:0}.toc a::before{display:none}
    .toc a.active{color:var(--accent)}
    .rail-foot,.rail-meta{display:none}
    .fdn-col{max-width:none}
    .figw{aspect-ratio:16/9}
  }
  /* image collage (Humanity hero) — full-bleed, static, upright tiles */
  .collage{position:relative;width:100vw;margin:56px 0;margin-left:calc(50% - 50vw);height:clamp(320px,32vw,520px);overflow:hidden}
  .collage .cg-tag{position:absolute;top:16px;right:24px;z-index:30;font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;
    color:var(--ink-3);border:1px solid var(--line);border-radius:100px;padding:4px 11px;background:rgba(8,9,10,.45)}
  .tile{position:absolute;height:var(--s);aspect-ratio:1;border-radius:14px;overflow:hidden;border:1px solid var(--line-strong);
    background:repeating-linear-gradient(135deg,rgba(255,255,255,.02) 0 12px,transparent 12px 24px),var(--bg-2);
    box-shadow:0 26px 55px -24px rgba(0,0,0,.75);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:11px}
  .tile .t-ic svg{width:26px;height:26px;color:var(--accent);opacity:.5}
  .tile .t-dim{font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--ink-2)}
  .tile::after{content:"";position:absolute;inset:0;background:linear-gradient(155deg,rgba(31,211,163,.10),transparent 55%);pointer-events:none}
  [data-img-id]:not(.tile){position:relative}.imgid{position:absolute;top:8px;left:8px;z-index:60;font-family:'JetBrains Mono',ui-monospace,monospace;font-size:9.5px;line-height:1;letter-spacing:.04em;font-weight:600;color:#04140f;background:#1fd3a3;border-radius:5px;padding:3px 6px;pointer-events:none;white-space:nowrap;box-shadow:0 2px 8px rgba(0,0,0,.5)}

@media(max-width:1024px){.ft-motif{display:none!important}.s-footer{min-height:auto;padding-bottom:12vh}}