/* Whitepaper v2 (extends fw.css) */
.w2-claims{list-style:none;margin:56px 0 0;padding:0;border-top:1px solid var(--ho)}
.w2-claims li{display:grid;grid-template-columns:120px minmax(0,1fr);gap:24px;padding:28px 0;border-bottom:1px solid var(--ho)}
.w2-claims .n{font-weight:300;font-size:64px;line-height:.85;letter-spacing:-.04em;color:var(--ink-or)}
.w2-claims h3{margin:0;font-weight:300;font-size:clamp(24px,2.4vw,34px);line-height:1.15;letter-spacing:-.02em;max-width:30ch;text-wrap:balance}
.w2-claims p{margin:12px 0 0;font-size:17px;line-height:1.6;max-width:70ch;color:#fff;text-wrap:pretty}
.w2-claims em{font-style:normal;color:var(--ink-or)}
/* reading paths */
.w2-roles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:56px}
.w2-role{all:unset;box-sizing:border-box;cursor:pointer;display:flex;flex-direction:column;gap:10px;padding:22px 20px;border:1px solid var(--hd);background:#1A1A1A;min-height:244px;transition:background .3s,border-color .3s}
.w2-role:hover{border-color:rgba(255,255,255,.45)}
.w2-role:focus-visible{outline:2px solid #fff;outline-offset:3px}
.w2-role .k{font-family:var(--m);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:#9A9A9A}
.w2-role b{font-weight:300;font-size:23px;line-height:1.15;letter-spacing:-.015em;color:#fff}
.w2-role .sx{font-family:var(--m);font-size:12px;color:var(--or-l)}
.w2-role small{font-size:14.5px;line-height:1.5;color:#C4C4C4}
.w2-role .rt{margin-top:auto;font-weight:300;font-size:30px;letter-spacing:-.02em;color:#fff}
.w2-role[aria-pressed="true"]{background:var(--or);border-color:var(--or)}
.w2-role[aria-pressed="true"] .k,.w2-role[aria-pressed="true"] .sx,.w2-role[aria-pressed="true"] small{color:#fff}
.w2-pathbar{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-top:12px;padding:14px 14px 14px 20px;border:1px solid var(--hd);font-size:16px;color:#C4C4C4;min-height:68px}
.w2-pathbar b{font-weight:400;color:#fff}
[data-path-go][hidden]{display:none}
.w2-note{margin-top:56px;max-width:900px;border-top:1px solid var(--hd);padding-top:20px}
.w2-note .k{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--or-l)}
.w2-note p{margin:12px 0 0;font-weight:300;font-size:19px;line-height:1.55;color:#fff}
.w2-note em{font-style:normal;color:#FFE1D5}
/* layout */
.w2-bg{background:#151515}
.w2{display:grid;grid-template-columns:260px minmax(0,1fr);gap:80px;max-width:1360px;margin:0 auto;padding:40px 32px 120px}
.w2-toc{position:sticky;top:96px;align-self:start;max-height:calc(100vh - 120px);overflow:auto;padding-top:72px;scrollbar-width:none}
.w2-toc-h{display:flex;justify-content:space-between;gap:12px;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:#9A9A9A;padding-bottom:12px;border-bottom:1px solid var(--hd)}
.w2-toc-h [data-left]{color:var(--or-l)}
.w2-toc nav{display:flex;flex-direction:column}
.w2-toc a{position:relative;display:grid;grid-template-columns:30px minmax(0,1fr) auto;gap:8px;padding:11px 0;border-bottom:1px solid var(--hd);font-size:14px;line-height:1.35;color:#9A9A9A;transition:color .2s,opacity .3s}
.w2-toc a .n{font-family:var(--m);font-size:11.5px;padding-top:2px}
.w2-toc a .m{font-family:var(--m);font-size:11px;padding-top:2px}
.w2-toc a i{position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--or-l);transform-origin:0 50%;transform:scaleX(var(--p,0))}
.w2-toc a:hover,.w2-toc a.act{color:#fff}
.w2-toc a.act .n{color:var(--or-l)}
.w2-toc a.off{opacity:.32}
.w2-toc-f{display:flex;justify-content:space-between;gap:12px;margin-top:14px;font-size:12px;color:#9A9A9A}
.w2-toc-f a{color:var(--or-l)}
.w2-a{max-width:800px;min-width:0}
.w2-s{padding:72px 0 64px;border-top:1px solid var(--hd);scroll-margin-top:72px}
.w2-s:first-child{border-top:0}
.w2-sh-t{display:flex;align-items:center;gap:16px}
.w2-num{font-weight:300;font-size:72px;line-height:.85;letter-spacing:-.05em;color:var(--or-l)}
.w2-onp{display:none;font-family:var(--m);font-size:11px;letter-spacing:.1em;text-transform:uppercase;padding:5px 8px;background:var(--or);color:#fff}
.onpath .w2-onp{display:inline-block}
.w2-k{display:flex;flex-wrap:wrap;gap:6px 18px;margin-top:20px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:#9A9A9A}
.w2-t{color:#C4C4C4}
.w2-sh h2{margin:12px 0 0;font-weight:300;font-size:clamp(34px,3.8vw,56px);line-height:1.02;letter-spacing:-.035em;text-wrap:balance}
.w2-sum{margin:28px 0 36px;padding:20px 24px;background:#1E1E1E;border:1px solid var(--hd)}
.w2-sum span{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--or-l)}
.w2-sum p{margin:8px 0 0;font-weight:300;font-size:20px;line-height:1.45;color:#fff}
.w2-sum strong{font-weight:400;color:#fff}
.w2-sum em{font-style:normal}
/* prose */
.w2-p p{font-size:17.5px;line-height:1.7;color:#CFCFCF;margin:0 0 18px;max-width:68ch;text-wrap:pretty}
.w2-p p.wp-lede{font-size:21px;line-height:1.5;color:#fff;font-weight:300}
.w2-p strong{color:#fff;font-weight:500}
.w2-p em{font-style:normal;color:#FFE1D5}
.w2-p h3{font-weight:400;font-size:23px;letter-spacing:-.01em;line-height:1.25;margin:48px 0 14px;color:#fff}
.w2-p ul,.w2-p ol{padding:0;margin:0 0 22px;list-style:none;max-width:68ch}
.w2-p li{position:relative;padding:11px 0 11px 22px;border-top:1px solid var(--hd);font-size:16.5px;line-height:1.6;color:#CFCFCF}
.w2-p li::before{content:"";position:absolute;left:0;top:21px;width:7px;height:7px;background:var(--or-l)}
.w2-p .mono{font-family:var(--m);font-size:.84em;color:#fff;background:#252525;padding:1px 6px}
.w2-p a{color:var(--or-l)}
.w2-p .wp-keypoints{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:24px 0 30px}
.w2-p .wp-keypoint{border:1px solid var(--hd);background:#1C1C1C;padding:20px;display:flex;flex-direction:column;gap:8px}
.w2-p .kp-num{font-family:var(--m);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--or-l)}
.w2-p .wp-keypoint h4{margin:2px 0 0;font-weight:400;font-size:19px;line-height:1.25;color:#fff}
.w2-p .wp-keypoint p{font-size:15px;line-height:1.55;margin:0}
#s1 .wp-keypoint:nth-child(4){background:var(--or);border-color:var(--or)}
#s1 .wp-keypoint:nth-child(4) .kp-num,#s1 .wp-keypoint:nth-child(4) p,#s1 .wp-keypoint:nth-child(4) em{color:#fff}
.w2-p .wp-pullquote{margin:32px 0;padding:28px 28px 24px;background:#1C1C1C;border:1px solid var(--hd)}
.w2-p .wp-pullquote::before{content:"“";display:block;font-size:72px;line-height:.6;height:30px;color:var(--or-l);font-weight:300}
.w2-p .wp-pullquote p{font-size:21px;line-height:1.5;color:#fff;font-weight:300;max-width:none}
.w2-p .wp-pullquote cite{display:block;font-style:normal;font-family:var(--m);font-size:12px;color:#9A9A9A}
.w2-tw{overflow-x:auto;margin:20px 0 30px}
.w2-p table{width:100%;min-width:600px;border-collapse:collapse;font-size:15px;margin:0}
.w2-p th{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:#9A9A9A;text-align:left;padding:12px;border-bottom:1px solid var(--hd);font-weight:400}
.w2-p td{padding:14px 12px;border-bottom:1px solid var(--hd);color:#CFCFCF;vertical-align:top;line-height:1.5}
.w2-p td:first-child{color:#fff}
.w2-p tr.highlight td{background:rgba(218,59,11,.16);color:#fff}
.w2-p .col-retain{text-align:right;white-space:nowrap}
.w2-p .wp-callout{margin:30px 0;padding:22px 24px;border:1px solid var(--or-l);background:rgba(218,59,11,.08)}
.w2-p .wp-callout .ctitle{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--or-l)}
.w2-p .wp-callout p{margin:10px 0 0;font-size:16.5px;color:#fff}
/* chain diagram */
.w2-p .wp-chain-v2{display:flex;flex-direction:column;gap:10px;margin:24px 0 32px;border:0;padding:0;background:none}
.w2-p .wp-chain-v2-layer{display:grid;grid-template-columns:170px minmax(0,1fr);gap:16px;align-items:center;padding:16px;border:1px solid var(--hd);background:#1C1C1C}
.w2-p .wp-chain-v2-meta{display:flex;flex-direction:column;gap:4px}
.w2-p .layer-name{font-size:15px;color:#fff}
.w2-p .layer-cad{font-size:13px;line-height:1.4;color:#9A9A9A}
.w2-p .wp-chain-v2-flow{display:flex;align-items:stretch;gap:8px;flex-wrap:wrap}
.w2-p .wp-chain-v2-node{flex:1 1 120px;display:flex;flex-direction:column;gap:4px;padding:10px 12px;border:1px solid rgba(255,255,255,.2);min-width:0}
.w2-p .wp-chain-v2-node.signed{border-color:var(--or-l)}
.w2-p .wp-chain-v2-node.anchor{background:var(--or);border-color:var(--or)}
.w2-p .n-label{font-family:var(--m);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:#9A9A9A}
.w2-p .anchor .n-label{color:#fff}
.w2-p .n-value{font-family:var(--m);font-size:12px;color:#fff;overflow-wrap:anywhere}
.w2-p .wp-chain-v2-arrow{align-self:center;color:var(--or-l)}
/* three properties */
.w2-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:16px 0 30px}
.w2-3c{border:1px solid var(--hd);background:#1C1C1C;padding:18px}
.w2-3c .k{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--or-l)}
.w2-p .w2-3c p{font-size:15px;line-height:1.55;margin:10px 0 0}
/* event classes */
.w2-evg{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:20px 0 32px}
.w2-ev{border:1px solid var(--hd);background:#1C1C1C;transition:border-color .3s}
.w2-ev[open]{grid-column:1/-1;border-color:rgba(255,106,61,.6)}
.w2-ev summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:30px minmax(0,1fr) 16px;gap:10px;align-items:center;padding:16px 18px}
.w2-ev summary::-webkit-details-marker{display:none}
.w2-ev summary:focus-visible{outline:2px solid #fff;outline-offset:-2px}
.w2-ev summary span{font-family:var(--m);font-size:12px;color:var(--or-l)}
.w2-ev summary b{font-weight:400;font-size:17px;color:#fff}
.w2-ev summary i{position:relative;width:14px;height:14px}
.w2-ev summary i::before,.w2-ev summary i::after{content:"";position:absolute;left:0;top:6px;width:14px;height:1.5px;background:#fff;transition:transform .3s var(--e)}
.w2-ev summary i::after{transform:rotate(90deg)}
.w2-ev[open] summary i::after{transform:none}
.w2-ev-b{padding:0 18px 18px 58px;font-size:15.5px;line-height:1.65;color:#CFCFCF;max-width:76ch}
/* trace vs graph */
.w2-tree{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:10px;margin:22px 0 34px}
.w2-tree-c{border:1px solid var(--hd);background:#1C1C1C;padding:18px 20px;display:flex;flex-direction:column;gap:12px}
.w2-tree-c.rf{border-color:var(--or-l)}
.w2-tree-c .k{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:#9A9A9A}
.w2-tree-c.rf .k{color:var(--or-l)}
.w2-tree-c small{margin-top:auto;font-size:13.5px;color:#C4C4C4}
.w2-tree figcaption{grid-column:1/-1;font-size:13px;color:#9A9A9A}
.w2-p .w2-tree ol,.w2-p .w2-tree ul{margin:0;max-width:none}
.w2-p .w2-tree li{padding:6px 0;border:0;font-family:var(--m);font-size:12.5px;line-height:1.45;color:#fff}
.w2-p .w2-tree li::before{content:none}
.w2-p .w2-flat li{padding:7px 10px;border:1px dashed rgba(255,255,255,.2);margin-bottom:4px;color:#CFCFCF}
.w2-p .w2-gr ul{position:relative;padding-left:22px;margin-top:2px}
.w2-p .w2-gr ul::before{content:"";position:absolute;left:6px;top:0;bottom:14px;width:1px;background:rgba(255,106,61,.75)}
.w2-p .w2-gr ul>li{position:relative;padding:5px 0 3px}
.w2-p .w2-gr ul>li::before{content:"";position:absolute;left:-16px;top:14px;width:11px;height:1px;background:rgba(255,106,61,.75)}
.w2-gr b{font-weight:400;color:var(--or-l)}
/* PII */
.w2-pii{display:grid;grid-template-columns:minmax(0,1.25fr) 86px minmax(0,1fr);margin:22px 0 34px;align-items:stretch}
.w2-pii-z{border:1px solid var(--hd);background:#1C1C1C;padding:18px;display:flex;flex-direction:column;gap:12px}
.w2-pii-z.you{border-style:dashed;border-color:rgba(255,255,255,.35)}
.w2-pii-z.rf{border-color:var(--or-l)}
.w2-pii-z .k,.w2-pii-v .k{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:#9A9A9A}
.w2-pii-z.rf .k,.w2-pii-v .k{color:var(--or-l)}
.w2-pii-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-family:var(--m);font-size:12px}
.w2-pii-row .raw{background:#fff;color:#151515;padding:4px 8px}
.w2-pii-row .tok{background:var(--or);color:#fff;padding:4px 8px}
.w2-pii-row .ar{color:#9A9A9A}
.w2-pii-z small{font-size:13.5px;color:#C4C4C4;margin-top:auto}
.w2-pii-mid{position:relative;display:flex;align-items:center;justify-content:center;font-family:var(--m);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:#C4C4C4;text-align:center}
.w2-pii-mid::before{content:"";position:absolute;left:6px;right:6px;top:50%;height:1px;background:repeating-linear-gradient(90deg,var(--or-l) 0 5px,transparent 5px 10px)}
.w2-pii-mid span{position:relative;background:#151515;padding:4px 6px;line-height:1.3}
.w2-pii-v{grid-column:1/-1;margin-top:10px;padding:16px 18px;border:1px solid var(--hd);background:#1C1C1C}
.w2-p .w2-pii-v p{margin:8px 0 0;font-size:15px;line-height:1.55;max-width:none}
/* penalties */
.w2-pen{margin:18px 0 32px;border-top:1px solid var(--hd)}
.w2-pen-r{display:grid;grid-template-columns:62px minmax(0,1.3fr) minmax(0,1fr) 112px;gap:16px;align-items:center;padding:14px 0;border-bottom:1px solid var(--hd)}
.w2-pen-r .t{font-family:var(--m);font-size:12px;color:#9A9A9A}
.w2-pen-r .w{font-size:15px;line-height:1.4;color:#CFCFCF}
.w2-pen-r .bar{height:10px;background:#262626}
.w2-pen-r .bar i{display:block;height:100%;width:calc(var(--v) * 100%);background:#6A6A6A;transform-origin:0 50%;transform:scaleX(0);transition:transform 1.2s var(--e) .2s}
.w2-pen.in .bar i{transform:none}
.w2-pen-r b{font-weight:400;font-size:15px;text-align:right;color:#CFCFCF}
.w2-pen-r.hot .bar i{background:var(--or-l)}
.w2-pen-r.hot .t,.w2-pen-r.hot b{color:var(--or-l)}
.w2-pen-r.hot .w{color:#fff}
.w2-pen small{display:block;margin-top:10px;font-size:13px;color:#9A9A9A}
/* verifier terminal */
.w2-term{margin:22px 0 28px;background:#0E0E0E;border:1px solid var(--hd);font-family:var(--m);font-size:13px}
.w2-term-h{display:flex;align-items:center;gap:12px;padding:10px 14px;border-bottom:1px solid var(--hd);font-size:11.5px;color:#9A9A9A}
.w2-dots{display:flex;gap:6px}
.w2-dots i{width:8px;height:8px;border-radius:50%;background:#FF5F4A}
.w2-dots i:nth-child(2){background:#F5B83D}
.w2-dots i:nth-child(3){background:#3DBE5A}
.w2-term-h button{all:unset;cursor:pointer;margin-left:auto;padding:5px 10px;border:1px solid var(--hd);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#fff}
.w2-term-h button:hover{border-color:var(--or-l);color:var(--or-l)}
.w2-term-h button:focus-visible{outline:2px solid #fff;outline-offset:2px}
.w2-term-b{padding:16px 18px 18px}
.w2-term .cmd{color:#fff;margin-bottom:10px;overflow-wrap:anywhere}
.w2-term .cmd .pr{color:var(--or-l)}
.w2-term .ln{display:flex;justify-content:space-between;gap:16px;padding:4px 0;color:#CFCFCF;opacity:0;transform:translateY(4px);transition:opacity .3s,transform .3s}
.w2-term .ln.on{opacity:1;transform:none}
.w2-term .ln b{font-weight:400;color:#86D4A6;white-space:nowrap}
.w2-term .ln.fin{margin-top:10px;padding:10px 12px;background:var(--or);color:#fff;letter-spacing:.06em}
.w2-term .ln.fin b{color:#fff}
.w2-term figcaption{padding:10px 14px;border-top:1px solid var(--hd);font-family:var(--f);font-size:13px;color:#9A9A9A}
.w2-colo{font-family:var(--m);font-size:12px!important;letter-spacing:.03em;line-height:1.6;max-width:680px;opacity:.9}
.w2-colo a{text-decoration:underline}
@media (max-width:1100px){.w2{grid-template-columns:minmax(0,1fr);gap:0;padding:0 20px 96px}
.w2-toc{position:sticky;top:70px;z-index:20;margin:0 -20px;padding:10px 20px;background:rgba(21,21,21,.95);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);max-height:none;overflow:visible;border-bottom:1px solid var(--hd)}
.w2-toc-h{padding-bottom:8px;border:0}.w2-toc nav{flex-direction:row;gap:4px;overflow-x:auto;scrollbar-width:none}
.w2-toc a{flex:none;display:flex;padding:7px 10px;border:1px solid var(--hd)}.w2-toc a .t,.w2-toc a .m{display:none}.w2-toc a.act{border-color:var(--or-l)}.w2-toc-f{display:none}
.w2-s{scroll-margin-top:150px}.w2-roles{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:760px){.w2-claims li{grid-template-columns:1fr;gap:10px}.w2-claims .n{font-size:44px}
.w2-p .wp-keypoints,.w2-evg,.w2-3,.w2-tree{grid-template-columns:1fr}.w2-pii{grid-template-columns:1fr}.w2-pii-mid{padding:10px 0}.w2-pii-mid::before{left:50%;right:auto;top:0;bottom:0;width:1px;height:auto;background:repeating-linear-gradient(180deg,var(--or-l) 0 5px,transparent 5px 10px)}
.w2-pen-r{grid-template-columns:52px minmax(0,1fr) 96px}.w2-pen-r .bar{grid-column:1/-1;grid-row:2}
.w2-roles{grid-template-columns:1fr}.w2-role{min-height:0}.w2-p .wp-chain-v2-layer{grid-template-columns:1fr}.w2-ev-b{padding-left:18px}.w2-num{font-size:56px}}