/* Cornerstone website mockup v2 (2026-10-20). Visual system carried from cornerstone-grade-line-v0.1. */
:root{--ink:#121210;--slab:#1d1c19;--line:#3a3833;--concrete:#e7e3da;--dust:#9a958a;--safety:#e37125;--thermal:#a24c34;--paper:#ece8df;--paper-ink:#1a1916;
--display:"Big Shoulders Display","Oswald","Arial Narrow",sans-serif;--body:"Archivo","Helvetica Neue",Arial,sans-serif;--mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;--gutter:clamp(16px,4vw,56px);
--logo:url(logo-11.png);--ar:2116 / 428;color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{background:var(--ink);color:var(--concrete);font-family:var(--body);font-size:17px;line-height:1.55;margin:0;overflow-x:hidden}
img{display:block;max-width:100%}a{color:inherit}:focus-visible{outline:2px solid var(--safety);outline-offset:3px}
.wrap{padding-inline:var(--gutter)}.max{max-width:1240px;margin-inline:auto}
.mono{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--dust)}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--safety);margin:0 0 14px}
h1,h2,h3{font-family:var(--display);font-weight:800;line-height:.95;letter-spacing:.005em;margin:0;text-wrap:balance;text-transform:uppercase}
h2{font-size:clamp(38px,5.4vw,78px)}h3{font-size:clamp(24px,2.4vw,34px)}p{margin:0 0 1em}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;z-index:99;background:var(--safety);color:var(--ink);padding:8px 12px}
/* nav */
.nav{position:fixed;z-index:60;left:0;right:0;top:12px;display:flex;justify-content:space-between;align-items:center;gap:10px;padding-inline:var(--gutter);pointer-events:none}
.nav>*{pointer-events:auto}
.brand{display:block;background:rgba(236,232,223,.94);padding:7px 11px;border-radius:999px;box-shadow:0 6px 20px rgba(0,0,0,.25)}
.brand .mark{display:block;height:24px;aspect-ratio:var(--ar);background:var(--logo) left center/contain no-repeat}
.pill{display:flex;align-items:center;gap:2px;background:rgba(29,28,25,.84);backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:999px;padding:5px}
.pill a{text-decoration:none;font-size:14px;padding:8px 13px;border-radius:999px;color:var(--concrete);white-space:nowrap}
.pill a:hover{background:var(--line)}.pill a[aria-current]{background:var(--concrete);color:var(--ink)}
.right{display:flex;align-items:center;gap:8px}
.vt{display:flex;gap:2px;background:rgba(29,28,25,.84);border:1px solid var(--line);border-radius:999px;padding:4px}
.vt button{font:500 11px var(--mono);letter-spacing:.06em;border:0;border-radius:999px;padding:6px 9px;background:transparent;color:var(--dust);cursor:pointer}
.vt button.on{background:var(--safety);color:var(--ink)}
.cta{display:inline-flex;align-items:center;gap:10px;background:var(--safety);color:var(--ink);font-weight:600;text-decoration:none;border-radius:999px;padding:12px 20px;font-size:15px;border:0;cursor:pointer;font-family:var(--body)}
.cta.ghost{background:transparent;color:var(--concrete);border:1px solid var(--line)}.cta:hover{filter:brightness(1.08)}
.menu{display:none;position:relative}.menu summary{list-style:none;cursor:pointer;font:500 12px var(--mono);letter-spacing:.12em;text-transform:uppercase;padding:10px 14px;border-radius:999px;background:rgba(29,28,25,.9);border:1px solid var(--line)}
.menu summary::-webkit-details-marker{display:none}
.menu nav{position:absolute;right:0;top:48px;background:var(--slab);border:1px solid var(--line);border-radius:10px;padding:8px 0;min-width:230px}
.menu nav a{display:block;padding:9px 18px;text-decoration:none}.menu nav a:hover{color:var(--safety)}
@media (max-width:1100px){.pill{display:none}.menu{display:block}.right .cta{display:none}}
/* page hero */
.phero{position:relative;min-height:74vh;display:flex;align-items:flex-end;padding:140px var(--gutter) 64px;overflow:hidden;border-bottom:2px solid var(--safety)}
.phero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:saturate(.85) contrast(1.05)}
.phero:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,18,16,.55),rgba(18,18,16,.35) 40%,rgba(18,18,16,.92))}
.phero .in{position:relative;z-index:2;max-width:1240px;width:100%;margin-inline:auto}
.phero h1{font-size:clamp(46px,7.4vw,116px);max-width:16ch}
.phero .lede{font-size:clamp(18px,1.6vw,22px);max-width:56ch;color:#f1ece3;margin-top:18px}
.crumb{font:500 12px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--dust);margin-bottom:16px}.crumb a{text-decoration:none}
.gradetag{position:absolute;right:var(--gutter);bottom:12px;z-index:2;font:500 11px var(--mono);letter-spacing:.2em;color:var(--safety)}
/* sections */
section.s{padding-block:clamp(72px,10vw,140px)}section.s.tight{padding-block:clamp(48px,6vw,80px)}
section.paper{background:var(--paper);color:var(--paper-ink)}section.paper .mono{color:#6b665c}section.paper .eyebrow{color:#b4541a}
section.slab{background:var(--slab)}
.head{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:end;margin-bottom:48px}.head p{color:var(--dust);font-size:18px;max-width:46ch}.head p.big{font-size:clamp(30px,3.8vw,56px);color:inherit;max-width:20ch}.head p.eyebrow{color:var(--safety);font-size:12px}section.paper .head p.big{font-size:clamp(30px,3.8vw,56px);color:inherit;max-width:20ch}.head p.eyebrow{color:#b4541a}
section.paper .head p{color:#55514a}
@media(max-width:860px){.head{grid-template-columns:1fr}}
.big{font-family:var(--display);font-weight:600;font-size:clamp(32px,4.6vw,66px);line-height:1.02;max-width:22ch;text-transform:none}.big em{font-style:normal;color:var(--safety)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.grid5{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
@media(max-width:960px){.grid3,.grid4,.grid5{grid-template-columns:1fr 1fr}}@media(max-width:640px){.grid2,.grid3,.grid4,.grid5{grid-template-columns:1fr}}
.card{background:var(--slab);border:1px solid var(--line);border-radius:8px;overflow:hidden;display:flex;flex-direction:column}
section.slab .card{background:var(--ink)}section.paper .card{background:#fff;border-color:#d8d2c6}
.card figure{margin:0;aspect-ratio:4/3;overflow:hidden;position:relative}.card figure img{width:100%;height:100%;object-fit:cover;filter:saturate(.88)}
.card figure figcaption{position:absolute;left:10px;top:10px;background:rgba(18,18,16,.8);color:var(--concrete);font:500 11px var(--mono);letter-spacing:.1em;text-transform:uppercase;padding:4px 8px;border-radius:3px}
.card .b{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}.card .b p{margin:0;color:var(--dust)}section.paper .card .b p{color:#55514a}
.card a.more{margin-top:auto;font-weight:600;text-decoration:none;color:var(--safety)}
.div2{display:grid;grid-template-columns:1fr 1fr;gap:20px}@media(max-width:860px){.div2{grid-template-columns:1fr}}
.divcard{position:relative;min-height:560px;border-radius:10px;overflow:hidden;display:flex;align-items:flex-end;padding:32px;border:1px solid var(--line)}
.divcard img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.divcard:after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 20%,rgba(18,18,16,.94))}
.divcard.dn:after{background:linear-gradient(transparent 15%,rgba(60,24,14,.94))}
.divcard .in{position:relative;z-index:2;display:grid;gap:12px}.divcard h3{font-size:clamp(36px,4vw,60px)}.divcard p{margin:0;max-width:44ch}
.seqline{display:flex;flex-wrap:wrap;gap:6px}.seqline span{font:500 12px var(--mono);text-transform:uppercase;letter-spacing:.06em;border:1px solid rgba(231,227,218,.35);border-radius:999px;padding:5px 10px}
ul.ticks{list-style:none;padding:0;margin:0;display:grid;gap:10px}ul.ticks li{padding-left:26px;position:relative}ul.ticks li:before{content:"";position:absolute;left:0;top:.62em;width:14px;height:2px;background:var(--safety)}
.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(var(--n,4),1fr);border-top:2px solid var(--safety)}
.steps li{padding:22px 18px 0 0;position:relative}.steps li:before{content:"";position:absolute;top:-7px;left:0;width:12px;height:12px;border-radius:50%;background:var(--safety)}
.steps b{display:block;font-family:var(--display);font-size:30px;text-transform:uppercase;line-height:1;margin:6px 0 8px}.steps p{color:var(--dust);font-size:15px;margin:0}
section.paper .steps p{color:#55514a}
@media(max-width:860px){.steps{grid-template-columns:1fr 1fr;row-gap:28px}}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.stats div{border-top:1px solid var(--line);padding-top:14px}.stats strong{display:block;font-family:var(--display);font-size:clamp(40px,5vw,72px);line-height:1}.stats span{color:var(--dust);font-size:14px}
@media(max-width:860px){.stats{grid-template-columns:1fr 1fr}}
.logos{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}.logos div{border:1px dashed #b9b2a4;border-radius:6px;height:72px;display:grid;place-items:center;font:500 11px var(--mono);color:#857f73;text-transform:uppercase;letter-spacing:.08em;text-align:center;padding:6px}
@media(max-width:860px){.logos{grid-template-columns:repeat(3,1fr)}}
.scope{border:1px solid var(--safety);border-left-width:6px;border-radius:6px;padding:22px 26px;background:rgba(227,113,37,.07)}.scope h3{font-size:26px;margin-bottom:10px}
.case{display:grid;grid-template-columns:1.1fr 1fr;border:1px solid var(--line);border-radius:10px;overflow:hidden}.case figure{margin:0;min-height:360px}.case img{width:100%;height:100%;object-fit:cover}.case .b{padding:36px;display:grid;gap:12px;align-content:center}
.case dl{display:grid;grid-template-columns:110px 1fr;gap:8px 16px;margin:0}.case dt{font:500 12px var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--dust)}.case dd{margin:0}
@media(max-width:860px){.case{grid-template-columns:1fr}}
.faq details{border-top:1px solid var(--line);padding:18px 0}.faq summary{cursor:pointer;font-weight:600;font-size:19px;list-style:none;display:flex;justify-content:space-between;gap:20px}.faq summary:after{content:"+";color:var(--safety);font-family:var(--mono)}
.faq details[open] summary:after{content:"\2212"}.faq details p{color:var(--dust);margin:12px 0 0;max-width:70ch}
section.paper .faq details{border-color:#d0c9bc}section.paper .faq details p{color:#55514a}
.ctaband{position:relative;overflow:hidden;border-top:2px solid var(--safety);background:radial-gradient(ellipse at 80% 120%,rgba(227,113,37,.28),transparent 60%),var(--ink)}
.ctaband h2{font-size:clamp(48px,8vw,128px);max-width:14ch}.ctaband .btns{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}
.form{display:grid;grid-template-columns:1fr 1fr;gap:14px}.form label{display:flex;flex-direction:column;gap:6px;font-size:14px;color:var(--dust)}.form .w{grid-column:1/-1}
.form input,.form select,.form textarea{background:var(--slab);border:1px solid var(--line);color:var(--concrete);padding:13px;border-radius:6px;font:inherit}
section.paper .form label{color:#55514a}section.paper .form input,section.paper .form select,section.paper .form textarea{background:#fff;border-color:#cfc8ba;color:var(--paper-ink)}
@media(max-width:640px){.form{grid-template-columns:1fr}}
.people{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.people .ph-head{aspect-ratio:4/5;border-radius:8px;border:1px dashed #b9b2a4;display:grid;place-items:center;font:500 11px var(--mono);color:#857f73;text-transform:uppercase;background:repeating-linear-gradient(135deg,transparent 0 12px,rgba(0,0,0,.03) 12px 24px)}
.people b{display:block;margin-top:10px}.people span{color:#6b665c;font-size:14px}
@media(max-width:860px){.people{grid-template-columns:1fr 1fr}}
.jobs{display:grid;gap:12px}.job{display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center;border:1px solid var(--line);border-radius:8px;padding:22px 24px;background:var(--slab)}.job h3{font-size:30px}.job p{margin:4px 0 0;color:var(--dust)}
.anchors{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}.anchors a{font:500 12px var(--mono);text-transform:uppercase;letter-spacing:.08em;text-decoration:none;border:1px solid rgba(231,227,218,.4);border-radius:999px;padding:7px 12px;background:rgba(18,18,16,.4)}
.anchors a:hover{border-color:var(--safety);color:var(--safety)}
.sector{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:center;padding-block:56px;border-top:1px solid var(--line)}.sector:nth-of-type(even) figure{order:2}
.sector figure{margin:0;aspect-ratio:4/3;border-radius:10px;overflow:hidden}.sector img{width:100%;height:100%;object-fit:cover}.sector h3{font-size:clamp(34px,3.6vw,54px);margin-bottom:14px}
.sector .x{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
@media(max-width:860px){.sector{grid-template-columns:1fr}.sector:nth-of-type(even) figure{order:0}}
/* placeholders */
.ph{background:rgba(227,113,37,.14);border:1px dashed var(--safety);color:#f6b37a;padding:1px 6px;border-radius:3px;font:500 .78em var(--mono);letter-spacing:.02em;white-space:normal}
section.paper .ph{color:#9a430f;background:rgba(227,113,37,.1)}
.draft{border-bottom:1px dotted rgba(227,113,37,.8)}
/* footer */
footer.site{background:#0c0b0a;border-top:2px solid var(--safety);padding:64px var(--gutter) 90px}
footer .cols{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:28px;max-width:1240px;margin:0 auto}
footer h4{font:500 12px var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--safety);margin:0 0 12px}footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}footer a{text-decoration:none;color:#cfc9be}footer a:hover{color:var(--safety)}
footer .fbrand{display:inline-block;background:var(--paper);padding:10px 14px;border-radius:8px}footer .fbrand .mark{height:30px;aspect-ratio:var(--ar);background:var(--logo) left center/contain no-repeat}
footer .fine{max-width:1240px;margin:40px auto 0;font-size:12.5px;color:#777;border-top:1px solid #262421;padding-top:18px}
@media(max-width:860px){footer .cols{grid-template-columns:1fr 1fr}}
/* mockup chip */
.chip{position:fixed;z-index:70;left:var(--gutter);bottom:14px;display:flex;gap:8px;align-items:center;background:var(--slab);border:1px solid var(--line);border-radius:999px;padding:7px 14px;font:500 11px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--dust)}
.chip b{color:var(--safety);font-weight:500}
@media(max-width:640px){.chip{display:none}}
/* reveal */
.js .rv{opacity:0;transform:translateY(34px);transition:opacity .8s,transform .8s}.js .rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.js .rv{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

.ph{background:rgba(227,113,37,.16);border:1px dashed var(--safety);color:#f7c896;padding:0 4px;border-radius:3px;font:inherit;letter-spacing:inherit;text-transform:inherit;white-space:normal}
section.paper .ph{color:#8a3c0c;background:rgba(227,113,37,.12)}
.chip .ph{padding:1px 5px}
.stats strong .ph{display:inline;font-size:inherit;margin:0;color:#f7c896}

/* v3 additions */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}.split.rev figure{order:2}
.split figure{margin:0;border-radius:10px;overflow:hidden;aspect-ratio:4/5;max-height:640px}.split figure img{width:100%;height:100%;object-fit:cover}
.split figure.wide{aspect-ratio:4/3}
@media(max-width:860px){.split{grid-template-columns:1fr}.split.rev figure{order:0}}
.strip4{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.strip4 figure{margin:0;position:relative;aspect-ratio:3/4;border-radius:8px;overflow:hidden}.strip4 img{width:100%;height:100%;object-fit:cover}
.strip4 figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 12px 10px;background:linear-gradient(transparent,rgba(0,0,0,.8));font:500 11px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:#f3ece2}
.strip4 figcaption b{color:var(--safety);font-weight:500;margin-right:6px}
@media(max-width:860px){.strip4{grid-template-columns:1fr 1fr}}
blockquote.q{margin:6px 0 0;padding:14px 18px;border-left:3px solid var(--safety);background:rgba(255,255,255,.03);font-size:18px;font-style:italic}
blockquote.q cite{display:block;font-style:normal;font:500 11px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--dust);margin-top:8px}
.proofrow{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:18px;padding-top:14px;border-top:1px solid var(--line)}.proofrow .mono{color:var(--concrete)}
.lead{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.lead figure{margin:0;aspect-ratio:4/5;border-radius:8px;overflow:hidden}.lead img{width:100%;height:100%;object-fit:cover}.lead b{display:block;margin-top:12px;font-size:18px}.lead span{font-size:14px;color:#6b665c}
@media(max-width:760px){.lead{grid-template-columns:1fr}}
.sector .proofrow{border-color:var(--line)}
.also{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media(max-width:760px){.also{grid-template-columns:1fr}}
.phero h1{font-size:clamp(40px,5.4vw,88px);max-width:20ch}
.estimator{display:grid;grid-template-columns:110px 1fr;gap:16px;align-items:center;border:1px solid var(--line);border-radius:10px;padding:14px;background:var(--slab);margin-top:28px}.estimator img{width:110px;height:130px;object-fit:cover;border-radius:6px}