/* =========================================================
   BrandBoost Co — "The Specimen"
   Light porcelain atelier design system
   ========================================================= */

:root{
  --porcelain:#F3F5F8;
  --cloud:#E5E9EF;
  --carbon:#10141A;
  --cobalt:#1A56FF;
  --saffron:#E8A20C;
  --grey:#7A8494;

  --carbon-80: rgba(16,20,26,0.8);
  --carbon-65: rgba(16,20,26,0.65);
  --carbon-40: rgba(16,20,26,0.4);
  --carbon-15: rgba(16,20,26,0.15);
  --carbon-08: rgba(16,20,26,0.08);
  --porcelain-80: rgba(243,245,248,0.8);
  --porcelain-40: rgba(243,245,248,0.4);
  --cobalt-15: rgba(26,86,255,0.15);

  --font-display:"Fraunces",Georgia,serif;
  --font-body:"Plus Jakarta Sans",-apple-system,BlinkMacSystemFont,sans-serif;
  --font-mono:"Space Mono",monospace;

  --container:1240px;
  --gutter:clamp(20px,5vw,64px);
  --radius:2px;

  --ease:cubic-bezier(.16,1,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:0.001ms !important;animation-iteration-count:1 !important;transition-duration:0.001ms !important;scroll-behavior:auto !important;}
}

body{
  margin:0;
  background:var(--porcelain);
  color:var(--carbon);
  font-family:var(--font-body);
  font-weight:500;
  line-height:1.6;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;}
a{color:currentColor;text-decoration:none;}
button{font-family:inherit;}
ul{margin:0;padding:0;}
address{font-style:normal;}

h1,h2,h3{
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.12;
  margin:0 0 0.5em;
  letter-spacing:-0.01em;
}
h3{font-weight:600;}
h4{font-family:var(--font-body);font-weight:700;margin:0 0 0.5em;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}

.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--gutter);
}

/* ---------- Surfaces (the only allowed bg+color combos) ---------- */
.surface-porcelain{background:var(--porcelain);color:var(--carbon);}
.surface-carbon{background:var(--carbon);color:var(--porcelain);}
.surface-cloud{background:var(--cloud);color:var(--carbon);}
.surface-cobalt{background:var(--cobalt);color:var(--porcelain);}

.surface-carbon a,.surface-cobalt a{color:currentColor;}

/* ---------- Skip link ---------- */
.skip-link{
  position:absolute;left:-999px;top:0;
  background:var(--cobalt);color:var(--porcelain);
  padding:12px 20px;z-index:200;font-family:var(--font-mono);font-size:13px;
}
.skip-link:focus{left:10px;top:10px;}

/* ---------- Eyebrow / mono labels ---------- */
.eyebrow{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--cobalt);
  display:inline-flex;
  align-items:center;
  gap:0.6em;
  margin:0 0 1em;
}
.surface-carbon .eyebrow,.surface-cobalt .eyebrow{color:var(--saffron);}
.eyebrow::before{
  content:"";
  width:7px;height:7px;
  background:currentColor;
  display:inline-block;
}

.specimen-id{
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--grey);
  letter-spacing:0.04em;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:0.5em;
  font-family:var(--font-body);
  font-weight:700;
  font-size:15px;
  padding:15px 28px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .35s var(--ease),background .25s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;
}
.btn-cobalt{background:var(--cobalt);color:var(--porcelain);border-color:var(--cobalt);}
.btn-cobalt:hover{background:#1447d6;border-color:#1447d6;}
.btn-outline{background:transparent;color:var(--carbon);border-color:var(--carbon);}
.btn-outline:hover{background:var(--carbon);color:var(--porcelain);}
.surface-carbon .btn-outline{color:var(--porcelain);border-color:var(--porcelain);}
.surface-carbon .btn-outline:hover{background:var(--porcelain);color:var(--carbon);}
.btn-text{background:transparent;color:var(--carbon);border-color:transparent;text-decoration:underline;padding:15px 8px;}
.surface-carbon .btn-text,.surface-cobalt .btn-text{color:var(--porcelain);}
.btn-small{padding:11px 20px;font-size:13px;}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;
  z-index:100;
  padding:22px 0;
  transition:background .3s ease,padding .3s ease,box-shadow .3s ease;
  background:transparent;
}
.site-header .header-inner{
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--gutter);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand-mark{
  font-family:var(--font-mono);
  font-weight:500;
  font-size:14px;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--carbon);
}
.site-header.is-stuck{
  background:var(--carbon);
  padding:14px 0;
  box-shadow:0 8px 24px rgba(0,0,0,0.18);
}
.site-header.is-stuck .brand-mark,
.site-header.is-stuck .site-nav a{color:var(--porcelain);}
.site-header.is-stuck .btn-outline{border-color:var(--porcelain);color:var(--porcelain);}

.site-nav{display:flex;gap:28px;}
.site-nav a{
  font-size:14px;
  font-weight:600;
  color:var(--carbon);
  position:relative;
  padding:4px 0;
}
.site-nav a::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:0;height:1px;background:currentColor;
  transition:width .3s var(--ease);
}
.site-nav a:hover::after,.site-nav a[aria-current="page"]::after{width:100%;}

.header-inner .btn{display:none;}
@media (min-width:900px){
  .header-inner .btn-cobalt.btn-small{display:inline-flex;}
}

.nav-toggle{
  display:flex;flex-direction:column;justify-content:center;gap:5px;
  width:32px;height:32px;background:none;border:none;cursor:pointer;padding:0;
}
.nav-toggle span{width:100%;height:2px;background:var(--carbon);transition:background .3s;}
.site-header.is-stuck .nav-toggle span{background:var(--porcelain);}

@media (max-width:899px){
  .site-nav{
    position:fixed;top:0;right:0;bottom:0;
    width:min(320px,80vw);
    background:var(--carbon);
    color:var(--porcelain);
    flex-direction:column;
    gap:0;
    padding:100px 32px 32px;
    transform:translateX(100%);
    transition:transform .4s var(--ease);
  }
  .site-nav.is-open{transform:translateX(0);}
  .site-nav a{color:var(--porcelain);padding:14px 0;border-bottom:1px solid rgba(255,255,255,0.1);font-size:16px;}
}
@media (min-width:900px){
  .nav-toggle{display:none;}
}

/* ---------- Hero: The Mark ---------- */
.hero{
  position:relative;
  min-height:92vh;
  display:flex;
  flex-direction:column;
  padding:120px 0 64px;
  overflow:hidden;
}
@media (max-width:640px){
  .hero{min-height:80vh;padding:100px 0 48px;}
}
.hero-topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding-bottom:20px;
  border-bottom:1px solid var(--carbon-15);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--carbon);
  position:relative;
}
.hero-topbar .tick{
  position:absolute;
  width:10px;height:10px;
  border-top:2px solid var(--cobalt);
  border-right:2px solid var(--cobalt);
  top:-2px;right:0;
}
.hero-headline{
  font-size:clamp(46px,7.2vw,84px);
  margin:44px 0 28px;
  max-width:16ch;
}
.hero-headline .accent{color:var(--cobalt);}

.hero-baseline{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 22px;
  padding:14px 0;
  border-top:2px solid var(--cobalt);
  border-bottom:1px solid var(--carbon-15);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--carbon-65);
  margin-bottom:40px;
}
.hero-baseline .stage{color:var(--carbon);}
.hero-baseline .sep{color:var(--cobalt);}

.hero-body{
  display:grid;
  grid-template-columns:1fr;
  gap:36px;
}
@media (min-width:760px){
  .hero-body{grid-template-columns:1.05fr 0.95fr;align-items:end;gap:56px;}
}
.hero-standfirst{
  max-width:560px;
  font-size:18px;
  color:var(--carbon-80);
}
.hero-cta-block{display:flex;flex-direction:column;gap:18px;align-items:flex-start;}
@media (min-width:760px){
  .hero-cta-block{align-items:flex-end;}
}

.hero-plate{
  position:relative;
  margin-top:40px;
  border:1px solid var(--carbon);
  padding:10px;
  background:var(--cloud);
}
.hero-plate-frame{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/8.5;
}
.hero-plate-frame img{width:100%;height:100%;object-fit:cover;}
.hero-plate .corner{
  position:absolute;width:16px;height:16px;
  border:2px solid var(--cobalt);
  z-index:2;
}
.hero-plate .corner.tl{top:6px;left:6px;border-right:none;border-bottom:none;}
.hero-plate .corner.tr{top:6px;right:6px;border-left:none;border-bottom:none;}
.hero-plate .corner.bl{bottom:6px;left:6px;border-right:none;border-top:none;}
.hero-plate .corner.br{bottom:6px;right:6px;border-left:none;border-top:none;}
.hero-plate-caption{
  display:flex;justify-content:space-between;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:0.06em;
  color:var(--grey);
  padding:10px 4px 0;
}
.js .hero-plate{transform:translateY(12px);opacity:0;transition:transform .9s var(--ease),opacity .9s var(--ease);}
.js .hero-plate.is-visible{transform:translateY(0);opacity:1;}
@media (prefers-reduced-motion:reduce){
  .js .hero-plate{transform:none;opacity:1;transition:none;}
}

.trust-strip{
  margin-top:44px;
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--grey);
  letter-spacing:0.04em;
}

/* ---------- Section rhythm ---------- */
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:56px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:clamp(30px,4vw,44px);}
.section-head .lede{font-size:17px;color:var(--carbon-80);max-width:600px;}
.surface-carbon .section-head .lede,
.surface-cobalt .section-head .lede{color:rgba(255,255,255,0.78);}

hr.hairline{border:none;border-top:1px solid var(--carbon-15);margin:0;}
.surface-carbon hr.hairline,.surface-cobalt hr.hairline{border-top-color:rgba(255,255,255,0.2);}

/* ---------- Reveal ---------- */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
.js .reveal.is-visible{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none;}
}

/* ---------- Metric trio ---------- */
.metric-trio{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
  border-top:1px solid var(--carbon-15);
  border-bottom:1px solid var(--carbon-15);
  padding:40px 0;
}
@media (min-width:700px){
  .metric-trio{grid-template-columns:repeat(3,1fr);}
}
.metric{padding:0 8px;}
.metric-figure{
  font-family:var(--font-mono);
  font-size:clamp(30px,4vw,44px);
  color:var(--cobalt);
  display:block;
  margin-bottom:8px;
}
.metric-label{font-size:14px;color:var(--carbon-65);}

/* ---------- Stage grid (Position/Voice/Mark/Govern) ---------- */
.stage-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:1px;
  background:var(--carbon-15);
  border:1px solid var(--carbon-15);
}
@media (min-width:760px){
  .stage-grid{grid-template-columns:repeat(4,1fr);}
}
.stage-card{
  background:var(--porcelain);
  padding:32px 28px;
  position:relative;
}
.stage-card .specimen-id{display:block;margin-bottom:24px;}
.stage-card h3{font-size:20px;margin-bottom:12px;}
.stage-card p{font-size:14.5px;color:var(--carbon-80);}

/* ---------- Capabilities on carbon rail ---------- */
.rail{
  padding:88px 0;
}
.rail .section-head h2{color:inherit;}
.cap-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:1px;
  background:rgba(255,255,255,0.12);
  border:1px solid rgba(255,255,255,0.14);
}
@media (min-width:640px){.cap-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:980px){.cap-grid{grid-template-columns:repeat(3,1fr);}}
.cap-card{
  background:var(--carbon);
  padding:32px 28px;
}
.cap-card .specimen-id{color:rgba(255,255,255,0.62);}
.cap-card h3{font-size:19px;margin-bottom:10px;color:var(--porcelain);}
.cap-card p{font-size:14.5px;color:rgba(255,255,255,0.82);}

/* ---------- Specimen frames (photo blocks) ---------- */
.specimen-frame{
  position:relative;
  border:1px solid var(--carbon);
  padding:8px;
  background:var(--porcelain);
}
.specimen-frame .frame-media{position:relative;overflow:hidden;}
.specimen-frame img{width:100%;height:100%;object-fit:cover;}
.specimen-frame .corner{position:absolute;width:14px;height:14px;border:2px solid var(--cobalt);z-index:2;}
.specimen-frame .corner.tl{top:4px;left:4px;border-right:none;border-bottom:none;}
.specimen-frame .corner.tr{top:4px;right:4px;border-left:none;border-bottom:none;}
.specimen-frame .corner.bl{bottom:4px;left:4px;border-right:none;border-top:none;}
.specimen-frame .corner.br{bottom:4px;right:4px;border-left:none;border-top:none;}
.specimen-frame figcaption{
  display:flex;justify-content:space-between;
  font-family:var(--font-mono);font-size:10.5px;color:var(--grey);
  padding:8px 2px 0;letter-spacing:0.04em;
}

/* ---------- Two column media/text ---------- */
.split{
  display:grid;
  grid-template-columns:1fr;
  gap:48px;
  align-items:center;
}
@media (min-width:820px){
  .split{grid-template-columns:1fr 1fr;}
  .split.reverse{direction:rtl;}
  .split.reverse > *{direction:ltr;}
}

/* ---------- Method list ---------- */
.method-list{display:flex;flex-direction:column;}
.method-item{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:20px;
  padding:28px 0;
  border-top:1px solid var(--carbon-15);
}
.method-item:last-child{border-bottom:1px solid var(--carbon-15);}
.method-item .num{font-family:var(--font-mono);color:var(--cobalt);font-size:15px;}
.method-item h3{font-size:19px;margin-bottom:8px;}
.method-item p{font-size:15px;color:var(--carbon-80);max-width:640px;}

/* ---------- Work teaser / grid ---------- */
.work-grid{display:grid;grid-template-columns:1fr;gap:40px;}
@media (min-width:760px){.work-grid{grid-template-columns:repeat(2,1fr);}}
.work-card{display:flex;flex-direction:column;gap:18px;}
.work-card h3{font-size:22px;}
.work-card .tag{font-family:var(--font-mono);font-size:11px;color:var(--cobalt);letter-spacing:0.08em;text-transform:uppercase;}
.work-card p{font-size:15px;color:var(--carbon-80);}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--carbon-15);}
.faq-item{border-bottom:1px solid var(--carbon-15);}
.faq-q{
  width:100%;text-align:left;background:none;border:none;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:20px;
  padding:26px 0;font-family:var(--font-body);font-weight:700;font-size:17px;color:var(--carbon);
}
.faq-q .plus{font-family:var(--font-mono);color:var(--cobalt);font-size:20px;flex-shrink:0;transition:transform .3s var(--ease);}
.faq-item[open] .plus{transform:rotate(45deg);}
.faq-a{padding:0 0 26px;max-width:760px;color:var(--carbon-80);font-size:15.5px;}
.faq-a p{margin-bottom:1em;}

/* ---------- Contact / forms ---------- */
.contact-grid{display:grid;grid-template-columns:1fr;gap:56px;}
@media (min-width:900px){.contact-grid{grid-template-columns:1fr 1fr;}}
.form-field{margin-bottom:20px;}
.form-field label{display:block;font-size:13px;font-weight:700;margin-bottom:8px;letter-spacing:0.02em;}
.form-field input,.form-field textarea,.form-field select{
  width:100%;
  padding:13px 14px;
  border:1px solid var(--carbon-40);
  background:var(--porcelain);
  color:var(--carbon);
  font-family:var(--font-body);
  font-size:15px;
  border-radius:var(--radius);
}
.form-field input:focus,.form-field textarea:focus,.form-field select:focus{outline:2px solid var(--cobalt);outline-offset:1px;}
.form-field textarea{min-height:130px;resize:vertical;}
.form-row{display:grid;grid-template-columns:1fr;gap:0 18px;}
@media (min-width:520px){.form-row{grid-template-columns:1fr 1fr;}}
.consent-field{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--carbon-80);}
.consent-field input{width:auto;margin-top:3px;}
.hp-field{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden;}

.info-card{
  border:1px solid var(--carbon-15);
  padding:28px;
  background:var(--cloud);
}
.info-card + .info-card{margin-top:20px;}
.info-card h3{font-size:16px;margin-bottom:10px;}
.info-card p{font-size:14.5px;color:var(--carbon-80);}

/* ---------- Legal content ---------- */
.legal-content{max-width:760px;}
.legal-content h2{font-size:24px;margin-top:2.2em;}
.legal-content h2:first-of-type{margin-top:0;}
.legal-content h3{font-size:18px;margin-top:1.6em;}
.legal-content p,.legal-content li{font-size:15.5px;color:var(--carbon-80);}
.legal-content ul{margin:0 0 1.1em;padding-left:1.3em;}
.legal-content li{margin-bottom:0.5em;}
.legal-content .updated{font-family:var(--font-mono);font-size:12px;color:var(--grey);margin-bottom:2.5em;}

/* ---------- Closing CTA ---------- */
.closing-cta{text-align:center;padding:110px 0;}
.closing-cta h2{font-size:clamp(32px,5vw,54px);max-width:16ch;margin:0 auto 20px;}
.closing-cta .lede{max-width:520px;margin:0 auto 36px;color:var(--porcelain-80,rgba(255,255,255,.78));}
.closing-cta .btn-row{justify-content:center;}

/* ---------- 404 ---------- */
.error-page{min-height:70vh;display:flex;align-items:center;padding:160px 0 96px;}
.error-page h1{font-size:clamp(34px,5vw,52px);}

/* ---------- Footer ---------- */
.site-footer{
  padding:88px 0 40px;
  width:100%;
}
.footer-inner{
  display:grid;
  grid-template-columns:1fr;
  gap:40px;
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--gutter) 56px;
  border-bottom:1px solid rgba(255,255,255,0.14);
}
@media (min-width:760px){
  .footer-inner{grid-template-columns:1.4fr 0.8fr 0.8fr 1.2fr;}
}
.footer-logo{font-family:var(--font-mono);font-size:15px;letter-spacing:0.06em;text-transform:uppercase;margin-bottom:14px;}
.footer-tag{font-size:14.5px;color:rgba(255,255,255,0.72);max-width:280px;line-height:1.65;}
.footer-heading{font-family:var(--font-mono);font-size:11px;letter-spacing:0.12em;text-transform:uppercase;color:var(--saffron);margin-bottom:16px;}
.footer-nav{display:flex;flex-direction:column;gap:10px;}
.footer-nav a{font-size:14.5px;color:rgba(255,255,255,0.82);transition:color .2s var(--ease);}
.footer-nav a:hover{color:var(--porcelain);}
.footer-contact address{font-size:14.5px;color:rgba(255,255,255,0.82);line-height:1.9;}
.footer-contact a{transition:color .2s var(--ease);}
.footer-contact a:hover{color:var(--saffron);}
.footer-fine{font-family:var(--font-mono);font-size:12px;color:rgba(255,255,255,0.55);margin-top:14px;}
.footer-bottom{
  display:flex;
  flex-direction:column;
  gap:14px;
  max-width:var(--container);
  margin:0 auto;
  padding:28px var(--gutter) 0;
}
.footer-bottom p{font-size:12.5px;color:rgba(255,255,255,0.55);margin:0;line-height:1.65;}
.footer-disclaimer{max-width:920px;}

/* ---------- Cookie banner ---------- */
.cookie-banner{
  position:fixed;left:16px;right:16px;bottom:16px;
  max-width:640px;
  margin:0 auto;
  background:var(--carbon);
  color:var(--porcelain);
  padding:22px 24px;
  border:1px solid rgba(255,255,255,0.15);
  z-index:300;
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
}
.cookie-banner p{font-size:13.5px;margin:0;max-width:420px;color:rgba(255,255,255,0.85);}
.cookie-banner[hidden]{display:none;}
.cookie-actions{display:flex;gap:10px;flex-wrap:wrap;}

/* ---------- Utility ---------- */
.text-center{text-align:center;}
.mt-0{margin-top:0;}
.mono{font-family:var(--font-mono);}
.visually-hidden{position:absolute;left:-9999px;}