/* ProcessTech Advisory – site styles. Brand tokens from the brand guidelines. */
@font-face{font-family:'Cormorant Garamond';font-weight:500;font-style:normal;font-display:swap;src:url('../fonts/cormorant-garamond-latin-500-normal.woff2') format('woff2')}
@font-face{font-family:'Cormorant Garamond';font-weight:600;font-style:normal;font-display:swap;src:url('../fonts/cormorant-garamond-latin-600-normal.woff2') format('woff2')}
@font-face{font-family:'Cormorant Garamond';font-weight:600;font-style:italic;font-display:swap;src:url('../fonts/cormorant-garamond-latin-600-italic.woff2') format('woff2')}
@font-face{font-family:'Inter';font-weight:400;font-style:normal;font-display:swap;src:url('../fonts/inter-latin-400-normal.woff2') format('woff2')}
@font-face{font-family:'Inter';font-weight:500;font-style:normal;font-display:swap;src:url('../fonts/inter-latin-500-normal.woff2') format('woff2')}

:root{
  --ink:#12283A; --ivory:#F6F3EC; --cu:#8F5E2E; --cu-l:#C9935A; --slate:#5E6A73; --sand:#E4DFD3;
  --serif:'Cormorant Garamond',Georgia,serif; --sans:'Inter',system-ui,sans-serif;
  --wrap:1180px; --pad:clamp(20px,5vw,56px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ivory);color:var(--ink);font:400 17px/1.6 var(--sans);-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:inherit}
p{margin:0 0 1em}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.05;margin:0}
sub{line-height:0}
body{font-feature-settings:"lnum" 1;font-variant-numeric:lining-nums}
h1{font-size:clamp(46px,6.6vw,96px);letter-spacing:-.01em}
h2{font-size:clamp(34px,4.4vw,58px);letter-spacing:-.005em}
:focus-visible{outline:2px solid var(--cu);outline-offset:3px}
.on-dark :focus-visible,.site-footer :focus-visible{outline-color:var(--cu-l)}
.wrap{width:100%;max-width:calc(var(--wrap) + var(--pad)*2);margin-inline:auto;padding-inline:var(--pad)}
.skip{position:absolute;left:-9999px;top:8px;background:var(--ink);color:var(--ivory);padding:10px 16px;z-index:50}
.skip:focus{left:8px}

/* Logo lockup (horizontal) */
.logo{--lf:28px;display:flex;align-items:center;gap:calc(var(--lf)*.6);text-decoration:none}
.logo svg{width:calc(var(--lf)*2.2);height:calc(var(--lf)*2.2);flex:none}
.logo__text{display:flex;flex-direction:column}
.logo__name{font:600 var(--lf)/1 var(--serif);letter-spacing:.16em;color:var(--ink)}
.logo__sub{font:500 calc(var(--lf)*.29)/1 var(--sans);letter-spacing:.5em;color:var(--cu);margin-top:.9em}
.logo--neg .logo__name{color:var(--ivory)}
.logo--neg .logo__sub{color:var(--cu-l)}

/* Header */
.site-header{position:sticky;top:0;z-index:30;background:var(--ivory);border-bottom:1px solid rgba(18,40,58,.14)}
.site-header__row{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:12px}
.nav{display:flex;align-items:center;gap:34px}
.nav a{font:500 15px/1 var(--sans);text-decoration:none;padding:6px 0;border-bottom:1px solid transparent}
.nav a:hover{border-bottom-color:var(--cu)}
.nav .lang{border:1px solid var(--slate);padding:6px 10px;font-size:13px;letter-spacing:.06em}
.nav .lang:hover{border-color:var(--cu)}
.nav .btn{padding:12px 20px;border-bottom:1px solid var(--ink)}
.nav .btn:hover{border-bottom-color:var(--cu)}
.nav-toggle{display:none;background:none;border:1px solid var(--ink);color:var(--ink);font:500 14px/1 var(--sans);padding:11px 16px;cursor:pointer}

/* Buttons */
.btn{display:inline-block;padding:16px 28px;font:500 15px/1 var(--sans);text-decoration:none;color:var(--ivory);background:var(--ink);border:1px solid var(--ink);cursor:pointer;transition:background .2s,border-color .2s,color .2s}
.btn:hover{background:var(--cu);border-color:var(--cu)}
.btn--ghost{background:transparent;color:var(--ink)}
.btn--ghost:hover{background:var(--ink);border-color:var(--ink);color:var(--ivory)}

/* Hero */
.hero{padding-block:clamp(32px,4.5vw,64px) clamp(36px,5vw,72px)}
.hero h1{max-width:14em;font-size:clamp(36px,4.6vw,66px)}
.hero__lead{font-size:clamp(16px,1.4vw,18px);max-width:34em;margin:22px 0 28px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px}

/* Services: the layer stack */
.services{background:var(--ink);color:var(--ivory);padding-top:clamp(72px,10vw,136px)}
.services__head{max-width:46em;padding-bottom:clamp(36px,5vw,64px)}
.services__head p{margin:22px 0 0;color:rgba(246,243,236,.78);max-width:36em}
.layer{position:relative;background:rgba(246,243,236,var(--a));border-top:1px solid rgba(246,243,236,.16)}
.layer:nth-child(1){--a:.03;--pv:26px}
.layer:nth-child(2){--a:.05;--pv:34px}
.layer:nth-child(3){--a:.07;--pv:20px}
.layer:nth-child(4){--a:.09;--pv:30px}
.layer:nth-child(5){--a:.11;--pv:23px}
.layer:nth-child(6){--a:.13;--pv:30px}
.layer:nth-child(7){--a:.15;--pv:22px}
.layer::before{content:"";position:absolute;left:0;right:0;top:-1px;height:3px;background:var(--cu-l);transform:scaleX(0);transform-origin:left;transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.layer.is-open::before{transform:scaleX(1)}
.layer__head{display:block;width:100%;text-align:left;background:none;border:0;color:inherit;font:inherit;padding:var(--pv) 0;cursor:pointer}
.layer__row{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr) 24px;gap:32px;align-items:center}
.layer__title{font:600 clamp(24px,2.5vw,32px)/1.1 var(--serif)}
.layer__sum{color:rgba(246,243,236,.78);font-size:16px}
.layer__chev{width:22px;height:12px;transition:transform .4s}
.layer.is-open .layer__chev{transform:rotate(180deg)}
.layer__body{display:grid;grid-template-rows:0fr;transition:grid-template-rows .55s cubic-bezier(.2,.7,.2,1)}
.layer.is-open .layer__body{grid-template-rows:1fr}
.layer__inner{overflow:hidden;min-height:0}
.layer__cols{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr) 24px;gap:32px;padding-block:0 30px}
.layer__cols>div:first-child{grid-column:1}
.layer__cols>div:nth-child(2){grid-column:2}
.layer__cols h3{font:500 13px/1.3 var(--sans);color:var(--cu-l);margin:0 0 8px;letter-spacing:.02em}
.layer__cols p,.layer__cols li{font-size:15.5px;line-height:1.6;color:rgba(246,243,236,.9)}
.layer__cols ul{list-style:none;margin:0;padding:0}
.layer__cols a{text-decoration-color:var(--cu-l);text-underline-offset:3px}

/* About */
.about{padding-block:clamp(72px,10vw,136px)}
.about__grid{display:grid;grid-template-columns:minmax(0,.48fr) minmax(0,1.52fr);gap:clamp(36px,7vw,96px);align-items:start}
.portrait{position:relative;max-width:240px;margin:0 14px 14px 0}
.portrait::after{content:"";position:absolute;inset:14px -14px -14px 14px;border:1px solid var(--cu);z-index:0}
.portrait img{position:relative;z-index:1;width:100%;height:auto;aspect-ratio:3/4;object-fit:cover;background:var(--sand)}
.about__role{font:600 italic clamp(20px,2vw,26px)/1.25 var(--serif);margin:14px 0 28px;color:var(--cu)}
.about__text{max-width:38em}
.facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px;margin:40px 0;padding:0}
.facts div{border-top:1px solid var(--cu);padding:18px 0 26px}
.facts dt{font:600 clamp(44px,5vw,68px)/1 var(--serif);margin:0 0 8px}
.facts dd{margin:0;font-size:15px;color:var(--slate);max-width:20em}
.exp__label{font:500 13px/1.3 var(--sans);color:var(--slate);margin:0 0 6px}
.patents{margin:0 0 36px}
.patents ul{margin:0;padding:0;list-style:none}
.patents li{padding:12px 0;border-top:1px solid rgba(18,40,58,.16);font-size:15.5px}
.patents li:last-child{border-bottom:1px solid rgba(18,40,58,.16)}
.patents li span{display:block;color:var(--slate);font-size:14px}
.patents a{text-decoration-color:var(--cu);text-underline-offset:3px}

/* Contact */
.contact{padding-block:clamp(72px,10vw,136px)}
.contact__grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(36px,7vw,96px);align-items:start}
.contact__intro p{max-width:30em;margin-top:22px}
.book{margin-top:40px;padding-left:24px;border-left:1px solid var(--cu)}
.book h3{font-size:clamp(24px,2.4vw,30px);margin-bottom:10px}
.book p{margin:0 0 20px}
.mail{margin-top:28px}
.mail a{text-decoration-color:var(--cu);text-underline-offset:3px}
.form{display:grid;gap:26px}
.form__row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
.field label{display:block;font:500 14px/1.3 var(--sans);margin-bottom:6px}
.field input,.field textarea{width:100%;font:400 17px/1.5 var(--sans);color:var(--ink);background:transparent;border:0;border-bottom:1px solid var(--slate);padding:10px 0;border-radius:0}
.field textarea{resize:vertical;min-height:140px}
.field input:focus,.field textarea:focus{border-bottom-color:var(--cu)}
.consent{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--slate)}
.consent input{margin-top:4px;accent-color:var(--ink);flex:none}
.consent a{text-decoration-color:var(--cu);text-underline-offset:3px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form .btn{justify-self:start}
.notice{display:none;margin:0;padding:14px 0 0;border-top:1px solid var(--cu)}
.notice:target{display:block}

/* Footer */
.site-footer{background:var(--ink);color:var(--ivory);padding-block:clamp(48px,6vw,80px) 32px}
.footer__grid{display:grid;grid-template-columns:minmax(0,1.3fr) repeat(2,minmax(0,.7fr));gap:40px}
.footer__claim{margin:26px 0 0;font:500 14px/1.5 var(--sans);color:rgba(246,243,236,.72)}
.footer__col h3{font:500 13px/1.3 var(--sans);color:var(--cu-l);margin:0 0 14px}
.footer__col ul{list-style:none;margin:0;padding:0;font-size:15px}
.footer__col li{margin-bottom:8px}
.footer__col a{text-decoration-color:var(--cu-l);text-underline-offset:3px}
.footer__legal{margin-top:48px;padding-top:20px;border-top:1px solid rgba(246,243,236,.18);font-size:13px;color:rgba(246,243,236,.65)}

/* Legal pages */
.legal{padding-block:clamp(48px,7vw,96px);max-width:52em}
.legal h1{font-size:clamp(40px,5vw,64px);margin-bottom:32px}
.legal h2{font-size:clamp(24px,2.6vw,32px);margin:36px 0 10px}
.legal a{text-decoration-color:var(--cu);text-underline-offset:3px}

/* Responsive */
@media (max-width:900px){
  .about__grid,.contact__grid{grid-template-columns:minmax(0,1fr)}
  .layer__row{grid-template-columns:minmax(0,1fr) 24px;gap:8px 16px}
  .layer__sum{grid-column:1;grid-row:2}
  .layer__chev{grid-column:2;grid-row:1}
  .layer__cols{grid-template-columns:minmax(0,1fr);gap:20px}
  .layer__cols>div:first-child,.layer__cols>div:nth-child(2){grid-column:1}
  .footer__grid{grid-template-columns:minmax(0,1fr)}
  .nav-toggle{display:block}
  .nav{position:absolute;left:0;right:0;top:100%;background:var(--ivory);flex-direction:column;align-items:flex-start;gap:18px;padding:20px var(--pad) 26px;border-bottom:1px solid rgba(18,40,58,.14);display:none}
  .nav.is-open{display:flex}
}
@media (max-width:560px){
  .logo{--lf:20px}
  .form__row{grid-template-columns:minmax(0,1fr)}
  .facts{grid-template-columns:minmax(0,1fr)}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .layer::before,.layer__body,.layer__chev,.btn{transition:none}
}