/* OptiProduct sub-page styles — Apple-style blue system, matches the homepage */
:root{
  --bg:#ffffff;--band:#f5f5f7;--card:#ffffff;--line:#d2d2d7;
  --fg:#1d1d1f;--muted:#6e6e73;--faint:#86868b;
  --blue:#0071e3;--blue-hi:#0077ed;--blue-soft:#e8f2fd;--on-blue:#ffffff;
  --good:#1a7f37;
  --f:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Helvetica Neue",Helvetica,Arial,sans-serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#000;--band:#101012;--card:#1c1c1e;--line:#38383a;
  --fg:#f5f5f7;--muted:#a1a1a6;--faint:#86868b;
  --blue:#2997ff;--blue-hi:#47a6ff;--blue-soft:#0b2540;--good:#3fb950;color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#000;--band:#101012;--card:#1c1c1e;--line:#38383a;
  --fg:#f5f5f7;--muted:#a1a1a6;--faint:#86868b;
  --blue:#2997ff;--blue-hi:#47a6ff;--blue-soft:#0b2540;--good:#3fb950;color-scheme:dark}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--f);font-size:17px;line-height:1.47;letter-spacing:-.022em;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:6px}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:600;text-wrap:balance;letter-spacing:-.03em}
h1{font-size:clamp(40px,7vw,72px);line-height:1.05}
h2{font-size:clamp(30px,4.6vw,48px);line-height:1.08}
h3{font-size:22px;line-height:1.2;letter-spacing:-.02em}
h4{font-size:15px;letter-spacing:-.01em}
.wrap{max-width:1040px;margin:0 auto;padding:0 22px}
@media (max-width:600px){.wrap{padding:0 16px}}

/* Header */
.hdr{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--line)}
.hdr .wrap{display:flex;align-items:center;gap:18px;height:52px}
.logo{color:var(--fg);font-size:19px;letter-spacing:-.02em;white-space:nowrap}
.logo b{font-weight:700}
.logo:hover{text-decoration:none}
.nav{display:flex;gap:20px;margin-left:auto;font-size:13px;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{color:var(--fg);opacity:.8;white-space:nowrap}
.nav a:hover{opacity:1;text-decoration:none}
.nav a[aria-current="page"]{opacity:1;font-weight:600}
.nav .cta{color:var(--blue);opacity:1}
@media (max-width:640px){.nav{gap:14px}.nav .hide-sm{display:none}}

/* Sections */
.hero{padding:88px 0 56px;text-align:center}
.eyebrow{color:var(--blue);font-size:15px;font-weight:600;letter-spacing:-.01em;margin-bottom:12px}
.lede{font-size:clamp(19px,2.3vw,24px);line-height:1.38;color:var(--muted);max-width:720px;margin:20px auto 0}
.band{background:var(--band)}
section.sec{padding:80px 0}
@media (max-width:600px){.hero{padding:56px 0 36px}section.sec{padding:56px 0}}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-head p{color:var(--muted);font-size:19px;margin-top:14px}
.center{text-align:center;margin-left:auto;margin-right:auto}

.btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:30px}
.btn{display:inline-block;background:var(--blue);color:var(--on-blue);border-radius:980px;padding:12px 22px;font-size:17px}
.btn:hover{background:var(--blue-hi);text-decoration:none}
.lnk{display:inline-block;padding:12px 4px;font-size:17px}

/* Stat strip */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.stat{background:var(--card);padding:22px 20px}
.stat b{display:block;font-size:clamp(26px,3.4vw,36px);font-weight:600;letter-spacing:-.03em;line-height:1.1}
.stat span{color:var(--muted);font-size:14px;display:block;margin-top:6px;line-height:1.35}
@media (max-width:760px){.stats{grid-template-columns:repeat(2,1fr)}}

.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:28px}
.band .card{border-color:transparent}
.tag{display:inline-block;font-size:12px;font-weight:600;color:var(--blue);background:var(--blue-soft);border-radius:980px;padding:4px 10px;letter-spacing:0}
.tags{display:flex;gap:6px;flex-wrap:wrap}
.muted{color:var(--muted)}
.small{font-size:14px}

/* Footer */
.cta-band{text-align:center;padding:88px 0}
.cta-band p{color:var(--muted);font-size:19px;margin:14px auto 0;max-width:560px}
footer{border-top:1px solid var(--line);padding:26px 0 40px;font-size:12px;color:var(--faint)}
footer .wrap{display:flex;gap:16px;flex-wrap:wrap;justify-content:space-between}
footer a{color:var(--muted)}
footer nav{display:flex;gap:16px;flex-wrap:wrap}

/* FAQ */
.faq{max-width:820px}
.faq details{border-top:1px solid var(--line);padding-block:18px}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-size:19px;font-weight:600;letter-spacing:-.02em;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--blue);font-weight:400;font-size:24px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--muted);margin-top:10px;font-size:17px}

/* ---------- Motion & interaction ---------- */
@view-transition{navigation:auto}
::view-transition-old(root),::view-transition-new(root){animation-duration:.35s}
.hdr{transition:box-shadow .3s ease,background-color .3s ease}
.hdr.scrolled{box-shadow:0 1px 0 var(--line),0 8px 24px -16px rgb(0 0 0 / .25)}
.btn{transition:background-color .2s ease,transform .2s cubic-bezier(.2,.8,.2,1)}
.btn:active{transform:scale(.97)}
.lnk{transition:transform .2s ease}
.lnk:hover{transform:translateX(3px);text-decoration:none}

/* Hero spotlight */
.hero{position:relative;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(600px circle at var(--mx,50%) var(--my,30%),var(--blue-soft),transparent 70%);opacity:.9;transition:opacity .4s}
.hl{background-image:linear-gradient(90deg,var(--blue),var(--blue-hi));background-repeat:no-repeat;background-position:0 92%;background-size:100% .12em;-webkit-box-decoration-break:clone;box-decoration-break:clone}
.motion .hl{animation:hl-sweep 1.1s .35s cubic-bezier(.2,.8,.2,1) both}
@keyframes hl-sweep{from{background-size:0% .12em}to{background-size:100% .12em}}
.motion .hero h1,.motion .hero .lede,.motion .hero .btns,.motion .hero .eyebrow{animation:rise .8s cubic-bezier(.2,.8,.2,1) both}
.motion .hero .eyebrow{animation-delay:0s}
.motion .hero h1{animation-delay:.06s}
.motion .hero .lede{animation-delay:.14s}
.motion .hero .btns{animation-delay:.22s}
@keyframes rise{from{transform:translateY(14px);opacity:.35}to{transform:none;opacity:1}}

/* Scroll reveals: start dim and lowered, settle into place */
.motion .rv{opacity:.12;transform:translateY(22px) scale(.985);transition:opacity .7s cubic-bezier(.2,.8,.2,1),transform .8s cubic-bezier(.2,.8,.2,1);transition-delay:calc(var(--i,0) * 70ms)}
.motion .rv.in{opacity:1;transform:none}

/* Hover lift on cards (mouse only) */
@media (hover:hover){
  .card,.case .res div,.dom-row:not(.dom-head),.stat{transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s ease,opacity .7s,background-color .3s}
  .grid2 .card:hover,.grid3 .card:hover,.grid4 .card:hover,.compare .card:hover{transform:translateY(-4px);box-shadow:0 18px 40px -24px rgb(0 0 0 / .35)}
  .motion .rv.in.card:hover{transform:translateY(-4px)}
}
.stat b,.res b,.hh-stats b{font-variant-numeric:tabular-nums}

/* Status dots pulse */
.status i,.ok i{position:relative}
.motion .status i::after,.motion .ok i::after{content:"";position:absolute;inset:0;border-radius:50%;background:inherit;animation:ping 2.4s cubic-bezier(0,0,.2,1) infinite}
@keyframes ping{0%{transform:scale(1);opacity:.6}80%,100%{transform:scale(2.6);opacity:0}}

/* Audit: framework filter + maturity picker */
.fw-filter{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.fw-filter button{font:inherit;font-size:14px;border:1px solid var(--line);background:var(--card);color:var(--fg);border-radius:980px;padding:7px 14px;cursor:pointer;transition:background-color .2s,color .2s,border-color .2s}
.fw-filter button:hover{border-color:var(--blue)}
.fw-filter button[aria-pressed="true"]{background:var(--blue);border-color:var(--blue);color:var(--on-blue)}
.fw-out{font-size:14px;color:var(--muted);margin-bottom:16px;min-height:1.4em}
.dom-row{transition:opacity .35s ease,background-color .35s ease}
.dom-row.dim{opacity:.32}
.dom-row.hit{background:color-mix(in srgb,var(--blue-soft) 55%,var(--card))}
.maps span{transition:background-color .25s,color .25s}
.maps span.lit{background:var(--blue);color:var(--on-blue)}
.scale[data-pick] .lvl{cursor:pointer;transition:background-color .3s}
.scale[data-pick] .lvl:hover{background:var(--band)}
.lvl .bar i{transform-origin:left;transition:transform .6s cubic-bezier(.2,.8,.2,1)}
.scale[data-sel] .lvl .bar i{transform:scaleX(0)}
.scale[data-sel] .lvl.on .bar i{transform:none}
.scale .lvl.cur{background:var(--blue-soft)}
.scale .lvl.cur h3{color:var(--blue)}
.scale-tip{margin-top:16px;color:var(--muted);font-size:16px;min-height:1.5em}
.scale-tip b{color:var(--fg)}

/* Socius demo */
.voice q{quotes:"\201C" "\201D"}
.typing .voice q::after{content:"";display:inline-block;width:2px;height:1em;background:var(--blue);vertical-align:-2px;margin-left:2px;animation:blink .8s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.motion [data-demo] .var>*{transition:opacity .45s ease,transform .5s cubic-bezier(.2,.8,.2,1)}
.motion [data-demo]:not(.built) .var>*{opacity:.08;transform:translateY(10px)}
.motion [data-demo] .var>:nth-child(2){transition-delay:.1s}
.motion [data-demo] .var>:nth-child(3){transition-delay:.25s}
.motion [data-demo] .var>:nth-child(4){transition-delay:1.1s}
.motion [data-demo].built .ok{animation:pop .5s 1.1s cubic-bezier(.3,1.6,.5,1) both}
@keyframes pop{from{transform:scale(.8)}to{transform:none}}
.replay{font:inherit;font-size:14px;color:var(--blue);background:none;border:0;padding:10px 0;cursor:pointer;margin-top:4px}
.replay:hover{text-decoration:underline}

/* Oversight steps: numbers fill in sequence */
.motion .steps>li.rv .num{transition:transform .5s cubic-bezier(.3,1.6,.5,1);transition-delay:calc(var(--i,0) * 160ms + .2s);transform:scale(.6)}
.motion .steps>li.rv.in .num{transform:none}

@media (prefers-reduced-motion:reduce){
  @view-transition{navigation:none}
  *,*::before,*::after{animation:none!important;transition:none!important}
}