:root{--ink:#0B0F14;--steel:#1A222C;--line:#26303C;--alu:#C9D1D9;--text:#E6EAF0;--muted:#8A96A6;--sheet:#F4F5F7;--sheet-text:#0B0F14;--sheet-muted:#4B5663;--ember:#FF6B1A;--ember-deep:#C24E08}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;font-family:'IBM Plex Sans',system-ui,sans-serif;font-size:17px;line-height:1.55;color:var(--text);background:var(--ink)}
a{color:var(--ember)}a:hover{color:#FF8A47}
h1,h2,h3{font-family:'Sora',sans-serif;margin:0;letter-spacing:-0.02em}
p{margin:0}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;justify-content:center;height:52px;padding:0 26px;border-radius:10px;background:var(--ember);color:var(--ink);font-family:'Sora',sans-serif;font-weight:600;font-size:16px;text-decoration:none;border:0;cursor:pointer}
.btn:hover{background:#FF8A47;color:var(--ink)}
.btn:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--ember);outline-offset:3px}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.btn.ghost:hover{background:var(--steel);color:var(--text)}

header{position:sticky;top:0;z-index:5;background:rgba(11,15,20,.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text)}
.logo span{font-family:'Sora',sans-serif;font-weight:800;font-size:18px;letter-spacing:.18em}
nav{display:flex;align-items:center;gap:26px;font-size:15px}
nav a{color:var(--alu);text-decoration:none}
nav a:hover{color:var(--text)}
nav .btn{height:42px;padding:0 18px;font-size:15px}
@media (max-width:720px){nav a:not(.btn){display:none}}

/* hero */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero .wrap{position:relative;padding:112px 24px 104px;max-width:1120px}
.hero h1{font-weight:800;font-size:clamp(46px,7.2vw,100px);line-height:.98;max-width:12ch}
.hero h1 em{font-style:normal;color:var(--ember)}
.hero p{margin-top:28px;font-family:'Sora',sans-serif;font-weight:300;font-size:clamp(19px,2.2vw,27px);line-height:1.35;color:var(--alu);max-width:30ch}
.hero .cta{margin-top:40px;display:flex;flex-wrap:wrap;gap:14px}
.mark{position:absolute;right:-14vw;top:50%;transform:translateY(-50%) rotate(-8deg);width:min(62vw,760px);height:auto;pointer-events:none}
@media (max-width:900px){.mark{right:-40vw;width:120vw;opacity:.45}}

/* sections */
section{padding:96px 0}
.lead{font-weight:600;font-size:clamp(30px,3.6vw,44px);line-height:1.12;max-width:26ch}
.sub{margin-top:18px;font-size:19px;line-height:1.5;color:var(--alu);max-width:56ch}

.why{background:var(--sheet);color:var(--sheet-text)}
.why .sub{color:var(--sheet-muted)}
.why ul{list-style:none;margin:64px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:48px}
.why li{border-top:3px solid var(--ember);padding-top:22px}
.why h3{font-weight:600;font-size:24px;line-height:1.2}
.why li p{margin-top:12px;font-size:17px;color:var(--sheet-muted)}
@media (max-width:860px){.why ul{grid-template-columns:1fr;gap:36px}}

.systems .grid{margin-top:64px;display:grid;grid-template-columns:1fr 1fr;gap:28px}
.sys{background:var(--steel);border-radius:18px;padding:40px;display:flex;flex-direction:column;gap:18px;min-height:380px}
.sys .name{display:flex;align-items:center;gap:14px;font-family:'Sora',sans-serif;font-weight:800;font-size:26px;letter-spacing:.14em}
.sys .name small{font-weight:300;letter-spacing:.1em;color:var(--alu)}
.sys .name .n{letter-spacing:0;font-weight:600}
.sys h3{font-weight:600;font-size:28px;line-height:1.15;margin-top:8px}
.sys p{color:var(--alu);font-size:17px}
.sys ul{margin:auto 0 0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.sys li{font-size:14px;color:var(--text);background:var(--ink);border-radius:999px;padding:7px 14px}
@media (max-width:860px){.systems .grid{grid-template-columns:1fr}.sys{min-height:0;padding:30px}}

.connect{background:var(--sheet);color:var(--sheet-text)}
.connect .sub{color:var(--sheet-muted)}
.connect .row{margin-top:48px;display:flex;flex-wrap:wrap;gap:12px 32px;font-family:'Sora',sans-serif;font-weight:600;font-size:clamp(20px,2.6vw,30px);line-height:1.3}
.connect .row span{white-space:nowrap}
.connect .row span::after{content:"";display:inline-block;width:10px;height:10px;border-radius:50%;background:var(--ember);margin-left:32px;vertical-align:middle}
.connect .row span:last-child::after{display:none}
.connect .note{margin-top:28px;font-size:17px;color:var(--sheet-muted);max-width:60ch}

.founder .wrap{display:grid;grid-template-columns:1fr 1.4fr;gap:48px;align-items:center}
.avatar{width:120px;height:120px;border-radius:50%;background:var(--steel);border:3px solid var(--ember);display:flex;align-items:center;justify-content:center;font-family:'Sora',sans-serif;font-weight:700;font-size:40px}
.founder h2{font-weight:600;font-size:30px;margin-top:22px}
.founder .role{color:var(--muted);margin-top:4px}
.founder p.bio{font-size:19px;line-height:1.5;color:var(--alu)}
.founder .links{margin-top:22px;display:flex;gap:22px;font-size:16px}
@media (max-width:860px){.founder .wrap{grid-template-columns:1fr;gap:28px}}

.contact{background:var(--steel);border-top:1px solid var(--line)}
.contact .wrap{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:start}
.contact h2{font-weight:600;font-size:34px}
.contact .mail{display:inline-block;margin-top:22px;font-family:'Sora',sans-serif;font-weight:600;font-size:20px}
form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
form label{display:flex;flex-direction:column;gap:6px;font-size:14px;color:var(--muted)}
form label.full{grid-column:1/-1}
input,textarea{height:48px;border-radius:10px;border:1px solid var(--line);background:var(--ink);color:var(--text);padding:0 14px;font:inherit;font-size:16px}
textarea{height:auto;padding:12px 14px;resize:vertical;min-height:110px}
.hp{position:absolute;left:-9999px}
#contact-status{grid-column:1/-1;font-size:14px;color:var(--alu);min-height:20px}
@media (max-width:860px){.contact .wrap{grid-template-columns:1fr}form{grid-template-columns:1fr}form label.full{grid-column:auto}}

footer{border-top:1px solid var(--line)}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding:28px 24px;font-size:14px;color:var(--muted)}
footer a{color:var(--muted);text-decoration:none}

nav a.on{color:var(--text);border-bottom:2px solid var(--ember);padding-bottom:4px}
.page-hero{padding:88px 0 56px;border-bottom:1px solid var(--line)}
.page-hero h1{font-weight:800;font-size:clamp(40px,5.6vw,72px);line-height:1;max-width:16ch}
.page-hero p{margin-top:22px;font-family:'Sora',sans-serif;font-weight:300;font-size:clamp(18px,2vw,24px);line-height:1.4;color:var(--alu);max-width:34ch}
.day{counter-reset:step}
.day ol{list-style:none;margin:56px 0 0;padding:0;display:grid;grid-template-columns:1fr 1fr 1fr;gap:40px}
.day li{border-top:3px solid var(--ember);padding-top:20px}
.day li .t{font-family:'Sora',sans-serif;font-weight:600;font-size:15px;color:var(--ember);letter-spacing:.02em}
.day h3{font-weight:600;font-size:24px;line-height:1.2;margin-top:8px}
.day li p{margin-top:12px;color:var(--alu)}
.why .day li p{color:var(--sheet-muted)}
@media (max-width:860px){.day ol{grid-template-columns:1fr;gap:32px}}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.split h3{font-weight:600;font-size:24px;line-height:1.2}
.split p{margin-top:12px;color:var(--alu)}
.why .split p{color:var(--sheet-muted)}
@media (max-width:860px){.split{grid-template-columns:1fr;gap:28px}}
.feat{margin-top:56px;display:grid;grid-template-columns:1fr 1fr;gap:28px 48px}
.feat div{border-top:1px solid var(--line);padding-top:18px}
.why .feat div{border-top-color:#D5DAE1}
.feat h3{font-weight:600;font-size:21px;line-height:1.2}
.feat p{margin-top:8px;color:var(--alu);font-size:16px}
.why .feat p{color:var(--sheet-muted)}
@media (max-width:860px){.feat{grid-template-columns:1fr}}
.cta-band{background:var(--ember);color:var(--ink)}
.cta-band .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;padding-top:40px;padding-bottom:40px}
.cta-band h2{font-weight:700;font-size:clamp(24px,3vw,34px)}
.cta-band .btn{background:var(--ink);color:var(--text)}
.cta-band .btn:hover{background:var(--steel);color:var(--text)}
.quiet{color:var(--muted);font-size:15px;margin-top:18px}

.certo-hero .mark{stroke:#FF6B1A}
.pillars{margin-top:56px;display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.pillars div{border-top:3px solid var(--ember);padding-top:20px}
.pillars h3{font-weight:600;font-size:22px;line-height:1.2}
.pillars p{margin-top:10px;color:var(--alu);font-size:16px}
.why .pillars p{color:var(--sheet-muted)}
@media (max-width:860px){.pillars{grid-template-columns:1fr;gap:28px}}
.asks{margin-top:48px;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.asks div{background:var(--steel);border-radius:14px;padding:18px 22px;font-family:'Sora',sans-serif;font-weight:400;font-size:18px;line-height:1.35}
.asks div span{display:block;margin-top:8px;font-family:'IBM Plex Sans',sans-serif;font-size:14px;color:var(--muted)}
@media (max-width:860px){.asks{grid-template-columns:1fr}}
.layers{margin-top:48px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.layers div{border-top:3px solid var(--ember);padding-top:16px}
.layers h3{font-weight:600;font-size:18px}
.layers p{margin-top:8px;font-size:15px;color:var(--sheet-muted);line-height:1.5}
@media (max-width:860px){.layers{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.layers{grid-template-columns:1fr}}
.stage{font-family:'Sora',sans-serif;font-weight:600;font-size:14px;color:var(--ember);margin-top:48px}
.stage:first-of-type{margin-top:56px}
.next{margin-top:18px;display:grid;grid-template-columns:1fr 1fr;gap:20px 48px}
.next div{border-top:1px solid var(--line);padding-top:16px}
.next h3{font-weight:600;font-size:20px}
.next p{margin-top:6px;color:var(--alu);font-size:16px}
@media (max-width:860px){.next{grid-template-columns:1fr}}

.feed{margin-top:48px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.feed article{background:var(--steel);border-radius:14px;padding:18px 22px;display:flex;flex-direction:column;gap:8px}
.why .feed article{background:#FFFFFF;border:1px solid #DCE0E6}
.feed .to{display:flex;justify-content:space-between;font-size:13px;color:var(--muted)}
.feed .to b{font-weight:600;color:var(--ember)}
.feed p{font-size:16px;line-height:1.5}
.why .feed p{color:var(--sheet-text)}
.feed .act{font-size:14px;color:var(--alu);border-top:1px solid var(--line);padding-top:8px;margin-top:4px}
.why .feed .act{color:var(--sheet-muted);border-top-color:#E3E7EC}
@media (max-width:860px){.feed{grid-template-columns:1fr}}

.roles{margin-top:56px;display:grid;grid-template-columns:1fr 1fr;gap:28px}
.role{background:var(--steel);border-radius:18px;padding:32px 34px}
.why .role{background:#FFFFFF;border:1px solid #DCE0E6}
.role h3{font-weight:600;font-size:24px;line-height:1.2}
.role .was{margin-top:14px;font-size:15px;color:var(--muted);line-height:1.5}
.why .role .was{color:var(--sheet-muted)}
.role ul{margin:16px 0 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:10px}
.role li{padding-left:22px;position:relative;font-size:16px;line-height:1.45}
.role li::before{content:"";position:absolute;left:0;top:9px;width:10px;height:10px;border-radius:50%;background:var(--ember)}
@media (max-width:860px){.roles{grid-template-columns:1fr}.role{padding:26px}}
.outcomes{margin-top:56px;display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.outcomes div{border-top:3px solid var(--ember);padding-top:20px}
.outcomes h3{font-weight:600;font-size:22px;line-height:1.2}
.outcomes p{margin-top:10px;color:var(--alu);font-size:16px}
.why .outcomes p{color:var(--sheet-muted)}
@media (max-width:860px){.outcomes{grid-template-columns:1fr;gap:28px}}
.measure{margin-top:48px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.measure div{background:var(--steel);border-radius:14px;padding:22px 24px}
.measure .n{font-family:'Sora',sans-serif;font-weight:800;font-size:34px;line-height:1;color:var(--ember)}
.measure p{margin-top:10px;font-size:15px;color:var(--alu);line-height:1.45}
@media (max-width:860px){.measure{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.measure{grid-template-columns:1fr}}
.legal{max-width:70ch}
.legal h2{font-weight:600;font-size:24px;margin-top:40px}
.legal p,.legal li{color:var(--alu);font-size:16px;line-height:1.6;margin-top:12px}

.role ul{margin-top:16px;display:flex;grid-template-columns:none;gap:10px}
.role li{border-top:0;padding-top:0}
.why .role h3{font-size:24px}

.roles{grid-template-columns:1fr}
.role .cmp{margin-top:18px;display:grid;grid-template-columns:1fr 1.15fr;gap:28px}
.role .cmp h4{margin:0 0 10px;font-family:'Sora',sans-serif;font-weight:600;font-size:13px;letter-spacing:.04em;color:var(--sheet-muted)}
.role .cmp h4.on{color:var(--ember)}
.role ul.today li::before{background:#B8C0C9;width:10px;height:3px;border-radius:2px;top:11px}
.role ul.today li{color:var(--sheet-muted)}
@media (max-width:760px){.role .cmp{grid-template-columns:1fr;gap:18px}}

.jump{margin-top:28px;display:flex;flex-wrap:wrap;gap:8px}
.jump a{font-size:14px;color:var(--sheet-text);background:#FFFFFF;border:1px solid #DCE0E6;border-radius:999px;padding:7px 14px;text-decoration:none}
.jump a:hover{border-color:var(--ember);color:var(--ember-deep)}
.role{scroll-margin-top:90px}

.ledger{margin-top:48px;display:grid;grid-template-columns:1fr 1fr;gap:28px}
.ledger article{background:var(--steel);border-radius:18px;padding:32px 34px}
.ledger h3{font-weight:800;font-size:clamp(26px,3vw,34px);line-height:1.1;color:var(--ember)}
.ledger p{margin-top:12px;color:var(--alu);font-size:16px}
.ledger ul{margin:16px 0 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px}
.ledger li{padding-left:22px;position:relative;font-size:15px;line-height:1.45}
.ledger li::before{content:"";position:absolute;left:0;top:9px;width:10px;height:10px;border-radius:50%;background:var(--ember)}
@media (max-width:860px){.ledger{grid-template-columns:1fr}}

.feed article{gap:6px}
.feed .lbl{font-family:'Sora',sans-serif;font-weight:600;font-size:12px;letter-spacing:.03em;color:var(--muted);margin-top:6px}
.feed .lbl.on{color:var(--ember)}
.feed p{margin:0}
.feed .act{border-top:0;padding-top:0;margin-top:0;color:var(--text)}
.howto{margin-top:28px;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.howto div{background:var(--steel);border-radius:12px;padding:16px 18px;font-size:15px;line-height:1.45;color:var(--alu)}
.howto b{display:block;font-family:'Sora',sans-serif;font-weight:600;color:var(--ember);font-size:13px;margin-bottom:4px}
@media (max-width:860px){.howto{grid-template-columns:1fr 1fr}}

/* v7: mobile nav, hero fixes, pain-first home */
.hero h1{max-width:14ch;text-wrap:balance}
.hero p{text-wrap:pretty}
@media (max-width:900px){.mark{display:none}.hero .wrap{padding:72px 24px 64px}}
.menu-btn{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:transparent;color:var(--text);cursor:pointer;align-items:center;justify-content:center}
.menu-btn svg{width:22px;height:22px}
@media (max-width:1000px){
  nav a:not(.btn){display:block}
  .menu-btn{display:inline-flex}
  nav{position:absolute;left:0;right:0;top:68px;background:var(--ink);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 16px;display:none}
  nav.open{display:flex}
  nav a:not(.btn){padding:14px 0;border-bottom:1px solid var(--line);font-size:17px}
  nav a.on{border-bottom:1px solid var(--line);padding-bottom:14px;color:var(--ember)}
  nav .btn{margin-top:14px;height:48px}
  header .right{display:flex;align-items:center;gap:12px}
  header .right .btn{height:40px;padding:0 14px;font-size:14px}
}
.pains{margin-top:56px;display:grid;grid-template-columns:1fr 1fr;gap:20px}
.pain{background:var(--steel);border-radius:18px;padding:28px 30px;display:flex;flex-direction:column;gap:12px}
.pain q{font-family:'Sora',sans-serif;font-weight:600;font-size:22px;line-height:1.25;quotes:"“" "”"}
.pain .cost{font-size:15px;color:var(--muted);line-height:1.5}
.pain .fix{border-top:1px solid var(--line);padding-top:12px;font-size:16px;line-height:1.5}
.pain .fix b{color:var(--ember);font-weight:600}
@media (max-width:860px){.pains{grid-template-columns:1fr}.pain{padding:24px}}

header .right{display:none}
@media (max-width:1000px){header .right{display:flex}nav .btn{display:inline-flex}}

.hero h1.long{font-size:clamp(40px,5.6vw,78px);max-width:16ch}
.sys{color:var(--text)}
.why .sys .name small{color:var(--alu)}
.why .sys h3{color:var(--text)}

/* v8: problems library, demo CTA */
.filters{margin-top:36px;display:flex;flex-wrap:wrap;gap:8px}
.filters button{font:inherit;font-size:14px;color:var(--text);background:var(--steel);border:1px solid var(--line);border-radius:999px;padding:8px 14px;cursor:pointer}
.filters button[aria-pressed=true]{background:var(--ember);color:var(--ink);border-color:var(--ember);font-weight:600}
.plist{margin-top:28px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pitem{background:var(--steel);border-radius:16px;padding:22px 24px;display:flex;flex-direction:column;gap:10px}
.pitem .area{font-family:'Sora',sans-serif;font-weight:600;font-size:12px;letter-spacing:.04em;color:var(--ember)}
.pitem q{font-family:'Sora',sans-serif;font-weight:600;font-size:19px;line-height:1.3;quotes:"“" "”"}
.pitem .cost{font-size:14px;color:var(--muted);line-height:1.5}
.pitem .fix{font-size:15px;line-height:1.5;border-top:1px solid var(--line);padding-top:10px}
.pitem .fix b{color:var(--ember);font-weight:600}
.pitem .who{font-size:13px;color:var(--muted)}
.pitem[hidden]{display:none}
@media (max-width:860px){.plist{grid-template-columns:1fr}}
.count{margin-top:14px;font-size:14px;color:var(--muted)}
.sticky-cta{display:none}
@media (max-width:760px){.sticky-cta{display:block;position:fixed;left:16px;right:16px;bottom:16px;z-index:6}.sticky-cta .btn{width:100%;height:52px;box-shadow:0 8px 30px rgba(0,0,0,.45)}body{padding-bottom:84px}}
.demo-steps{margin-top:48px;display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.demo-steps div{border-top:3px solid var(--ember);padding-top:18px}
.demo-steps h3{font-weight:600;font-size:20px}
.demo-steps p{margin-top:8px;color:var(--alu);font-size:16px}
@media (max-width:860px){.demo-steps{grid-template-columns:1fr}}
select{height:48px;border-radius:10px;border:1px solid var(--line);background:var(--ink);color:var(--text);padding:0 14px;font:inherit;font-size:16px}

/* v8.1: emphasis on the fix */
.pain q,.pitem q{font-family:'IBM Plex Sans',sans-serif;font-weight:500;font-size:16px;line-height:1.4;color:var(--muted)}
.pain .cost,.pitem .cost{display:none}
.pain .fix,.pitem .fix{border-top:0;padding-top:0;margin-top:2px;font-family:'Sora',sans-serif;font-weight:600;font-size:20px;line-height:1.3;color:var(--text)}
.pitem .fix{font-size:18px}
.pain .fix b,.pitem .fix b{display:block;font-size:12px;letter-spacing:.06em;color:var(--ember);margin-bottom:6px;font-weight:700}
.pain .fix span.cost2,.pitem .fix span.cost2{display:block;margin-top:10px;font-family:'IBM Plex Sans',sans-serif;font-weight:400;font-size:14px;color:var(--muted);line-height:1.5}
.pitem .who{margin-top:4px}