/* Pi Mapper — shared styles */
@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,300..800&display=swap');

:root{
  --paper:#F4F6F8;
  --paper-2:#E9EDF1;
  --ink:#101820;
  --ink-2:#3B4854;
  --ink-3:#6B7C8C;
  --line:#D5DCE3;
  --cobalt:#1E4BD2;       /* agents */
  --cobalt-soft:#DCE4FB;
  --amber:#D98A1E;        /* humans, exceptions */
  --amber-soft:#FBEBD2;
  --slate:#5C6B7A;        /* existing software */
  --slate-soft:#E3E8ED;
  --ok:#1F8A63;
  --font:'Bricolage Grotesque', 'Helvetica Neue', Arial, sans-serif;
  --maxw:1180px;
  --gutter:clamp(20px, 4vw, 56px);
  --r-sm:6px;
  --r-md:12px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--font);font-size:17px;line-height:1.55;
  font-variation-settings:'opsz' 14;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{
  outline:3px solid var(--cobalt);outline-offset:3px;border-radius:3px
}
img,svg{max-width:100%;display:block}
::selection{background:var(--cobalt-soft)}

/* type scale */
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-0.02em;line-height:1.08}
h1{font-size:clamp(36px,4.5vw,58px);font-variation-settings:'opsz' 96;font-weight:500;letter-spacing:-0.035em}
.hero h1{font-size:clamp(30px,3.4vw,46px)}
h2{font-size:clamp(30px,4vw,46px);font-variation-settings:'opsz' 96;font-weight:500;letter-spacing:-0.03em}
h3{font-size:clamp(21px,2.2vw,26px);font-variation-settings:'opsz' 48;font-weight:600}
h4{font-size:18px;font-weight:600}
p{margin:0 0 1em}
.lede{font-size:clamp(19px,1.8vw,22px);color:var(--ink-2);max-width:60ch;line-height:1.5}
.measure{max-width:64ch}
.muted{color:var(--ink-3)}
.small{font-size:15px}
strong{font-weight:600}

/* layout */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}
section{padding:clamp(56px,8vw,112px) 0}
section+section{border-top:1px solid var(--line)}
.grid{display:grid;gap:clamp(24px,3vw,48px)}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.split{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(32px,5vw,80px);align-items:start}
.split.rev{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.sticky{position:sticky;top:96px}
@media (max-width:900px){
  .g2,.g3,.g4,.split,.split.rev{grid-template-columns:1fr}
  .sticky{position:static}
}

/* header */
.top{
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb,var(--paper) 88%,transparent);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line)
}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:19px;letter-spacing:-0.02em}
.brand .mark{width:28px;height:28px}
.nav{display:flex;gap:6px;align-items:center}
.nav a{padding:8px 12px;border-radius:var(--r-sm);color:var(--ink-2);font-size:16px}
.nav a:hover,.nav a[aria-current="page"]{color:var(--ink);background:var(--paper-2)}
.nav .cta{color:#fff;background:var(--ink);margin-left:8px}
.nav .cta:hover{background:var(--cobalt)}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:var(--r-sm);padding:8px 12px;font:inherit;font-size:15px;cursor:pointer}
@media (max-width:820px){
  .menu-btn{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:68px;flex-direction:column;align-items:stretch;background:var(--paper);border-bottom:1px solid var(--line);padding:12px var(--gutter) 20px}
  .nav.open{display:flex}
  .nav .cta{margin:8px 0 0;text-align:center}
}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 20px;border-radius:var(--r-sm);font-weight:600;font-size:16px;border:1px solid transparent;cursor:pointer;font-family:inherit;line-height:1;transition:background .15s,border-color .15s,color .15s}
.btn.primary{background:var(--ink);color:#fff}
.btn.primary:hover{background:var(--cobalt)}
.btn.ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn.ghost:hover{border-color:var(--ink)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* legend chips: human / agent / software */
.who{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;padding:4px 10px 4px 7px;border-radius:999px;background:var(--paper-2);color:var(--ink-2);white-space:nowrap}
.who::before{content:'';width:9px;height:9px;border-radius:50%;background:var(--slate)}
.who.human{background:var(--amber-soft);color:#7A4E0C}.who.human::before{background:var(--amber)}
.who.agent{background:var(--cobalt-soft);color:#173A9C}.who.agent::before{background:var(--cobalt)}
.who.software{background:var(--slate-soft);color:#3E4A56}.who.software::before{background:var(--slate)}

/* offerings list */
.offer{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:clamp(20px,4vw,64px);padding:clamp(28px,4vw,48px) 0;border-top:1px solid var(--line)}
.offer:last-child{border-bottom:1px solid var(--line)}
.offer .k{color:var(--ink-3);font-size:15px;margin-bottom:8px}
.offer h3{margin-bottom:8px}
.offer .out{margin-top:18px;padding:16px 18px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md)}
.offer .out .t{font-size:14px;color:var(--ink-3);margin-bottom:4px}
.offer ul{margin:12px 0 0;padding-left:18px;color:var(--ink-2)}
.offer li{margin:4px 0}
@media (max-width:900px){.offer{grid-template-columns:1fr;gap:12px}}

/* stat blocks */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.stats>div{background:#fff;padding:22px 20px}
.stats b{display:block;font-size:clamp(30px,3.4vw,44px);font-weight:500;letter-spacing:-0.03em;line-height:1;font-variation-settings:'opsz' 96}
.stats span{display:block;color:var(--ink-3);font-size:15px;margin-top:8px}
@media (max-width:700px){.stats{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* cards used sparingly (insights list, founder facts) */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px}
.card h3{margin-bottom:8px}
.card .meta{color:var(--ink-3);font-size:14px;margin-bottom:12px}
a.card{display:block;transition:border-color .15s}
a.card:hover{border-color:var(--ink)}
.more{font-weight:600;color:var(--cobalt)}

/* demo chapter nav */
.chapters{display:flex;gap:4px;border:1px solid var(--line);border-radius:999px;padding:4px;background:#fff;width:max-content;max-width:100%;overflow:auto}
.chapters a{padding:9px 16px;border-radius:999px;font-size:15px;font-weight:600;color:var(--ink-2);white-space:nowrap}
.chapters a[aria-current="true"],.chapters a:hover{background:var(--ink);color:#fff}
.chapter{display:none}
.chapter.active{display:block}
.chapter-head{padding-bottom:32px;border-bottom:1px solid var(--line);margin-bottom:40px}
.chapter-head .n{color:var(--ink-3);font-size:15px;margin-bottom:10px}
.confidential{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);border:1px dashed var(--line);border-radius:4px;padding:4px 10px}

/* timeline */
.tl{border-left:2px solid var(--line);margin-left:6px;padding-left:24px}
.tl .wk{font-weight:600;margin:28px 0 14px;position:relative}
.tl .wk:first-child{margin-top:0}
.tl .wk::before{content:'';position:absolute;left:-31px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--ink)}
.tl .ev{display:grid;grid-template-columns:64px 1fr;gap:14px;padding:10px 0;border-bottom:1px dashed var(--line);font-size:15px}
.tl .ev .d{color:var(--ink-3)}
.tl .ev .sys{margin-top:4px;display:flex;flex-wrap:wrap;gap:6px}
.tag{display:inline-block;font-size:12.5px;padding:2px 8px;border-radius:4px;background:var(--paper-2);color:var(--ink-2)}
.tag.warn{background:var(--amber-soft);color:#7A4E0C}
.tag.ok{background:#DDF2E9;color:#155F44}
.tag.agent{background:var(--cobalt-soft);color:#173A9C}

/* tables */
table{width:100%;border-collapse:collapse;font-size:15px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:600;color:var(--ink-2);background:var(--paper-2)}
tr:last-child td{border-bottom:none}
.tbl-wrap{overflow:auto;border-radius:var(--r-md)}

/* variant bars */
.bars{display:grid;gap:10px}
.bar{display:grid;grid-template-columns:minmax(0,1fr) 72px;gap:12px;align-items:center;font-size:15px}
.bar .track{height:10px;background:var(--paper-2);border-radius:999px;overflow:hidden;margin-top:6px}
.bar .fill{height:100%;background:var(--ink);border-radius:999px}
.bar .fill.warn{background:var(--amber)}
.bar .v{text-align:right;color:var(--ink-3);font-variant-numeric:tabular-nums}

/* task ownership strip (redesign) */
.own{display:grid;grid-template-columns:minmax(0,1fr) 120px 120px;gap:10px;font-size:15px;padding:12px 0;border-bottom:1px solid var(--line);align-items:center}
.own:first-child{color:var(--ink-3);font-size:14px}
.own .arrow{color:var(--ink-3)}
@media (max-width:640px){.own{grid-template-columns:1fr auto auto;font-size:14px}}

/* eval gates */
.gates{display:grid;gap:12px}
.gate{display:grid;grid-template-columns:28px minmax(0,1fr) auto;gap:14px;align-items:start;padding:16px 18px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md)}
.gate .dot{width:14px;height:14px;border-radius:50%;margin-top:5px;background:var(--ok)}
.gate .dot.amber{background:var(--amber)}
.gate .dot.grey{background:var(--line)}
.gate .th{font-size:14px;color:var(--ink-3)}
.gate .num{font-size:22px;font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap}

/* hero */
.hero{padding:clamp(48px,7vw,96px) 0 clamp(40px,6vw,80px);border-top:none}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(32px,5vw,72px);align-items:center}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr}.hero h1{font-size:clamp(40px,10vw,58px)}}
.hero h1{max-width:none}
.hero .lede{margin-top:22px}
.hero-fig{position:relative;margin:0}
.hero-fig svg{width:100%;height:auto}
.hero-fig figcaption{display:flex;gap:18px;flex-wrap:wrap;margin-top:12px;font-size:14px;color:var(--ink-3)}
.hero-fig figcaption span{display:inline-flex;align-items:center;gap:8px}
.hero-fig figcaption i{width:22px;height:0;border-top:3px solid var(--slate);display:inline-block}
.hero-fig figcaption i.doc{border-top-style:dashed;border-color:var(--ink-3)}
.hero-fig figcaption i.exc{border-color:var(--amber)}

/* process graph animation */
.pg .edge{fill:none;stroke-linecap:round;stroke-linejoin:round}
.pg .documented{stroke:var(--ink-3);stroke-width:2;stroke-dasharray:6 6}
.pg .actual{stroke:var(--slate);stroke-width:2.5;opacity:.9}
.pg .exception{stroke:var(--amber);stroke-width:2.5}
.pg .node{fill:#fff;stroke:var(--ink);stroke-width:2}
.pg .node.exc{stroke:var(--amber)}
.pg text{font-family:var(--font);font-size:13px;fill:var(--ink);font-weight:600}
.pg text.sub{font-size:11.5px;font-weight:500;fill:var(--ink-3)}
.pg .draw{stroke-dasharray:1200;stroke-dashoffset:1200;animation:draw 1.6s cubic-bezier(.4,0,.2,1) forwards}
.pg .documented.draw{stroke-dasharray:1200;animation:drawdoc 1.2s ease forwards}
.pg .fade{opacity:0;animation:fadein .5s ease forwards}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes drawdoc{to{stroke-dashoffset:0;stroke-dasharray:6 6}}
@keyframes fadein{to{opacity:1}}
@media (prefers-reduced-motion:reduce){
  .pg .draw,.pg .documented.draw{animation:none;stroke-dashoffset:0}
  .pg .documented{stroke-dasharray:6 6}
  .pg .fade{animation:none;opacity:1}
}

/* numbered steps — only used where content is a real sequence */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;background:var(--line)}
.steps>div{background:#fff;padding:24px 22px;counter-increment:s;position:relative}
.steps>div::before{content:counter(s);display:inline-flex;width:30px;height:30px;border-radius:50%;background:var(--ink);color:#fff;font-weight:600;font-size:14px;align-items:center;justify-content:center;margin-bottom:14px}
.steps h4{margin-bottom:6px}
.steps p{color:var(--ink-2);font-size:15.5px;margin:0}
.steps .w{color:var(--ink-3);font-size:14px;margin-top:10px;display:block}
@media (max-width:900px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.steps{grid-template-columns:1fr}}

/* quote */
.pull{font-size:clamp(22px,2.6vw,30px);font-weight:500;letter-spacing:-0.02em;line-height:1.3;max-width:30ch;border-left:4px solid var(--amber);padding-left:24px;margin:0}

/* contact form */
.form{display:grid;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:28px}
.form label{display:grid;gap:6px;font-size:15px;font-weight:600}
.form input,.form textarea,.form select{font:inherit;font-size:16px;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--paper);color:var(--ink);width:100%}
.form textarea{min-height:120px;resize:vertical}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:600px){.form .row{grid-template-columns:1fr}}

/* article */
.article{max-width:68ch;margin:0 auto}
.article h1{font-size:clamp(34px,4.6vw,56px);max-width:18ch}
.article .meta{color:var(--ink-3);margin:18px 0 40px;font-size:15px}
.article h2{font-size:clamp(24px,2.8vw,32px);margin:48px 0 14px}
.article h3{margin:32px 0 10px}
.article p,.article li{font-size:18px;line-height:1.65;color:var(--ink)}
.article ul,.article ol{padding-left:22px}
.article li{margin-bottom:8px}
.article .aside{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:20px 22px;margin:28px 0;font-size:16px}
.article .aside p{font-size:16px;margin:0}
.next{border-top:1px solid var(--line);margin-top:56px;padding-top:24px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}

/* founder */
.portrait{aspect-ratio:4/5;border-radius:var(--r-md);background:linear-gradient(160deg,var(--paper-2),var(--slate-soft));border:1px solid var(--line);display:grid;place-items:center;color:var(--ink-3);font-size:15px;overflow:hidden}
.portrait img{width:100%;height:100%;object-fit:cover}
.facts{display:grid;gap:0;border-top:1px solid var(--line)}
.facts div{display:grid;grid-template-columns:150px 1fr;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);font-size:16px}
.facts div span:first-child{color:var(--ink-3)}
@media (max-width:560px){.facts div{grid-template-columns:1fr;gap:2px}}
.arc{border-left:2px solid var(--line);margin-left:6px;padding-left:24px;display:grid;gap:22px}
.arc>div{position:relative}
.arc>div::before{content:'';position:absolute;left:-31px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--ink)}
.arc>div:last-child::before{background:var(--cobalt)}
.arc h4{margin-bottom:4px}
.arc p{margin:0;color:var(--ink-2)}

/* footer */
footer{border-top:1px solid var(--line);padding:40px 0 48px;color:var(--ink-3);font-size:15px}
footer .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:flex-start}
footer nav{display:flex;gap:18px;flex-wrap:wrap}
footer a:hover{color:var(--ink)}

/* page header band */
.pagehead{padding:clamp(48px,6vw,88px) 0 clamp(32px,4vw,56px);border-top:none}
.pagehead h1{max-width:16ch;font-size:clamp(38px,5.4vw,66px)}
.pagehead .lede{margin-top:20px}

/* details */
details{border-top:1px solid var(--line)}
details:last-of-type{border-bottom:1px solid var(--line)}
summary{cursor:pointer;padding:18px 0;font-weight:600;font-size:18px;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:'+';font-size:22px;color:var(--ink-3);font-weight:400}
details[open] summary::after{content:'−'}
details .body{padding:0 0 22px;color:var(--ink-2);max-width:68ch}