/* biz.css — shared skin for the three mockup business sites. Each page sets its palette on :root. */
:root{
  --brand:#c8102e;--brand-dark:#8f0b21;--ink:#141414;--paper:#fff;--soft:#f5f5f4;--muted:#5f5f5f;--line:#e6e6e6;--on-brand:#fff;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;padding-bottom:0}
a{color:var(--brand)}
h1,h2,h3{line-height:1.1;margin:0 0 .4em;letter-spacing:-.015em}
h1{font-size:clamp(2rem,5.2vw,3.4rem);font-weight:800}
h2{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:800}
h3{font-size:1.15rem}
p{margin:0 0 1em}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}
/* header */
header.site{position:sticky;top:0;z-index:20;background:var(--paper);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.logo{font-weight:900;font-size:1.15rem;text-decoration:none;color:var(--ink);letter-spacing:-.02em;display:flex;align-items:center;gap:10px}
.logo i{display:inline-block;width:14px;height:26px;background:var(--brand);border-radius:3px;transform:skewX(-14deg)}
nav.main{display:flex;gap:22px}
nav.main a{text-decoration:none;color:var(--ink);font-weight:600;font-size:.95rem;white-space:nowrap}
@media (max-width:820px){nav.main{display:none}}
.call{display:inline-flex;align-items:center;gap:10px;background:var(--brand);color:var(--on-brand);text-decoration:none;font-weight:800;padding:12px 18px;border-radius:10px;white-space:nowrap;font-size:1.05rem;box-shadow:0 2px 0 var(--brand-dark)}
.call:hover{background:var(--brand-dark)}
.call svg{width:20px;height:20px;fill:currentColor}
/* mobile sticky call bar — the one thing this site is for */
.callbar{display:none}
@media (max-width:820px){
  header.site .call.hdr{display:none}
  .callbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:30;background:var(--brand);color:var(--on-brand);padding:12px 16px calc(12px + env(safe-area-inset-bottom));justify-content:center;align-items:center;gap:12px;text-decoration:none;font-weight:800;font-size:1.2rem;box-shadow:0 -4px 16px rgba(0,0,0,.25)}
  .callbar svg{width:24px;height:24px;fill:currentColor}
  body{padding-bottom:calc(76px + env(safe-area-inset-bottom))}
}
/* hero */
.hero{position:relative;color:#fff;min-height:min(78vh,640px);display:flex;align-items:flex-end;isolation:isolate}
.hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.82) 0%,rgba(0,0,0,.35) 55%,rgba(0,0,0,.15) 100%);z-index:-1}
.hero .wrap{padding:56px 20px 44px}
.hero .kicker{display:inline-block;background:var(--brand);color:var(--on-brand);font-weight:800;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;padding:6px 10px;border-radius:6px;margin-bottom:14px}
.hero p{font-size:1.15rem;max-width:56ch;color:#eee}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-top:8px}
.hero .cta .alt{color:#fff;text-decoration:underline;font-weight:600}
/* trust strip */
.trust{background:var(--ink);color:#ddd;font-size:.92rem}
.trust .wrap{display:flex;flex-wrap:wrap;gap:8px 28px;justify-content:center;padding:12px 20px}
.trust b{color:#fff}
/* sections */
section{padding:60px 0}
section.soft{background:var(--soft)}
.lead{font-size:1.15rem;color:var(--muted);max-width:62ch}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(auto-fit,minmax(min(300px,100%),1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(min(250px,100%),1fr))}
.svc{background:var(--paper);border:1px solid var(--line);border-radius:14px;overflow:hidden;display:flex;flex-direction:column;text-decoration:none;color:inherit}
.svc img{width:100%;aspect-ratio:4/3;object-fit:cover}
.svc div{padding:16px 18px 18px}
.svc p{color:var(--muted);font-size:.97rem;margin:0}
/* before / after slider: native range input drives a clip-path */
.ba{position:relative;aspect-ratio:3/4;overflow:hidden;border-radius:14px;background:#222;--pos:50%;user-select:none}
.ba.wide{aspect-ratio:4/3}
.ba img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;pointer-events:none}
.ba .before{clip-path:inset(0 calc(100% - var(--pos)) 0 0)}
.ba::after{content:"";position:absolute;top:0;bottom:0;left:var(--pos);width:3px;background:#fff;transform:translateX(-50%);box-shadow:0 0 0 1px rgba(0,0,0,.3);pointer-events:none}
.ba input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize}
.ba:focus-within{outline:3px solid var(--brand);outline-offset:3px}
.ba .knob{position:absolute;top:50%;left:var(--pos);transform:translate(-50%,-50%);width:44px;height:44px;border-radius:50%;background:#fff;color:#111;display:grid;place-items:center;font-weight:900;font-size:.9rem;box-shadow:0 2px 10px rgba(0,0,0,.4);pointer-events:none}
.ba .lbl{position:absolute;top:12px;padding:5px 10px;border-radius:6px;font-size:.78rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;background:rgba(0,0,0,.65);color:#fff;pointer-events:none}
.ba .lbl.b{left:12px}.ba .lbl.a{right:12px}
.ba-cap{color:var(--muted);font-size:.9rem;margin-top:8px}
/* gallery */
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(165px,1fr));gap:10px}
.gallery img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:10px}
/* reviews */
.review{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:20px}
.review .stars{color:#f5a623;letter-spacing:2px;font-size:1.1rem}
.review p{margin:.5em 0}
.review small{color:var(--muted)}
/* contact */
.contact{display:grid;grid-template-columns:1.1fr 1fr;gap:32px;align-items:start}
@media (max-width:820px){.contact{grid-template-columns:1fr}}
form.quote{display:grid;gap:10px;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:20px}
form.quote input,form.quote textarea,form.quote select{width:100%;font:inherit;padding:12px;border:1px solid #cfcfcf;border-radius:8px}
form.quote textarea{min-height:100px}
form.quote button{font:inherit}
.info b{display:block}
.info p{margin:0 0 .8em}
.demo{font-size:.8rem;color:var(--muted)}
/* area */
.area{display:flex;flex-wrap:wrap;gap:8px}
.area span{background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:6px 12px;font-size:.9rem}
footer{background:var(--ink);color:#bbb;padding:36px 0 40px;font-size:.92rem}
footer a{color:#fff}
footer .wrap{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.pill{display:inline-block;background:#fff3cd;color:#6b4d00;border:1px solid #f0d27a;border-radius:8px;padding:8px 12px;font-size:.85rem}
/* the OES ribbon — this is a proposal, not the live site */
.ribbon{background:#1c1b18;color:#f3efe6;font-size:.85rem;text-align:center;padding:8px 12px}
.ribbon a{color:#f3efe6}
/* ── one-site additions: mobile menu (native <details>), breadcrumbs, FAQ, related links, section accents ── */
.mnav{display:none}
@media (max-width:820px){
  .mnav{display:block;position:relative}
  .mnav summary{list-style:none;cursor:pointer;font-weight:700;padding:8px 12px;border:1px solid var(--line);border-radius:8px;font-size:.95rem}
  .mnav summary::-webkit-details-marker{display:none}
  .mnav div{position:absolute;right:0;top:44px;background:var(--paper);border:1px solid var(--line);border-radius:12px;box-shadow:0 8px 24px rgba(0,0,0,.15);min-width:240px;padding:8px;z-index:40;display:grid}
  .mnav a{padding:10px 12px;text-decoration:none;color:var(--ink);font-weight:600;border-radius:8px}
  .mnav a:hover{background:var(--soft)}
}
.crumbs{font-size:.85rem;color:var(--muted);padding:12px 0 0}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{text-decoration:underline}
.crumbs span{margin:0 6px}
.faq details{border-top:1px solid var(--line);padding:12px 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--brand);font-weight:900}
.faq details[open] summary::after{content:"–"}
.faq p{margin:.6em 0 0;color:var(--muted)}
.related{display:flex;flex-wrap:wrap;gap:8px}
.related a{text-decoration:none;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-size:.92rem;font-weight:600}
.related a:hover{border-color:var(--brand);color:var(--brand)}
.lines{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(280px,100%),1fr));gap:18px}
.line{position:relative;border-radius:16px;overflow:hidden;min-height:300px;display:flex;align-items:flex-end;color:#fff;text-decoration:none;isolation:isolate}
.line img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .4s}
.line:hover img{transform:scale(1.04)}
.line::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.85),rgba(0,0,0,.1));z-index:-1}
.line div{padding:20px}
.line h3{font-size:1.5rem;margin:0 0 .3em}
.line p{color:#ddd;margin:0;font-size:.95rem}
.line small{display:inline-block;margin-top:10px;background:var(--brand);color:var(--on-brand);font-weight:800;padding:4px 10px;border-radius:6px;font-size:.78rem;letter-spacing:.06em;text-transform:uppercase}
.tree{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88rem;line-height:1.7;background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:18px 22px;overflow-x:auto;white-space:pre}
.tree b{color:var(--brand)}
table.plan{border-collapse:collapse;width:100%;font-size:.93rem}
table.plan th,table.plan td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
table.plan th{background:var(--soft);font-size:.8rem;text-transform:uppercase;letter-spacing:.04em}
.tscroll{overflow-x:auto}
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;gap:12px}
.steps li{position:relative;padding-left:52px}
.steps li::before{counter-increment:s;content:counter(s);position:absolute;left:0;top:0;width:38px;height:38px;border-radius:50%;background:var(--brand);color:var(--on-brand);display:grid;place-items:center;font-weight:900}
.steps b{display:block}