/* ============================================================
   PETRONA — Porcelain Tiles & Slabs
   Design system built on the Petrona Brand Identity:
   60% white/bone · 30% onyx/stone · 7% terracotta · 3% sage
   Display: Georgia (italic signature) · Body: Carlito (Calibri)
   ============================================================ */

/* ---------- Fonts ---------- */
@font-face{
  font-family:'Carlito';
  src:url('../fonts/carlito-latin-400-normal.woff2') format('woff2');
  font-weight:400;font-style:normal;font-display:swap;
}
@font-face{
  font-family:'Carlito';
  src:url('../fonts/carlito-latin-700-normal.woff2') format('woff2');
  font-weight:700;font-style:normal;font-display:swap;
}
@font-face{
  font-family:'Carlito';
  src:url('../fonts/carlito-latin-400-italic.woff2') format('woff2');
  font-weight:400;font-style:italic;font-display:swap;
}

/* ---------- Tokens ---------- */
:root{
  --onyx:#0A0A0A;
  --white:#FFFFFF;
  --stone:#8B857A;
  --terracotta:#B85C3C;
  --bone:#EDE8DD;
  --sage:#7A8471;
  --bronze:#6B4423;
  --forest:#4A554A;
  --sand:#C5B299;

  --font-display:Georgia,'Times New Roman',serif;
  --font-body:Calibri,'Carlito','Segoe UI',system-ui,sans-serif;

  --measure:62ch;
  --gutter:clamp(1.25rem,4vw,4rem);
  --section:clamp(5rem,10vw,9rem);
  --ease:cubic-bezier(.22,.8,.28,1);
  --dur:.9s;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}
body{
  font-family:var(--font-body);
  font-size:1.0625rem;
  line-height:1.65;
  color:var(--onyx);
  background:var(--bone);
  -webkit-font-smoothing:antialiased;
}
img,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font:inherit;background:none;border:none;cursor:pointer;color:inherit}
:focus-visible{outline:2px solid var(--terracotta);outline-offset:3px}
::selection{background:var(--terracotta);color:var(--white)}

.skip-link{
  position:absolute;left:-999px;top:0;background:var(--onyx);color:var(--white);
  padding:.75rem 1.25rem;z-index:200;
}
.skip-link:focus{left:0}

/* ---------- Typography ---------- */
.display{
  font-family:var(--font-display);
  font-weight:400;
  line-height:1.04;
  letter-spacing:-.015em;
}
.display em{font-style:italic;letter-spacing:0}
.h-hero{font-size:clamp(2.75rem,7.5vw,6.5rem)}
.h-xl{font-size:clamp(2.4rem,5.4vw,4.6rem)}
.h-lg{font-size:clamp(1.9rem,3.6vw,3rem)}
.h-md{font-size:clamp(1.45rem,2.4vw,2rem);line-height:1.15}

.eyebrow{
  font-family:var(--font-body);
  font-size:.72rem;
  font-weight:700;
  letter-spacing:.32em;
  text-transform:uppercase;
  color:var(--stone);
}
.eyebrow--terra{color:var(--terracotta)}
.eyebrow--light{color:rgba(255,255,255,.65)}

.lede{font-size:clamp(1.1rem,1.5vw,1.3rem);line-height:1.6;max-width:var(--measure);color:var(--forest)}
.body-copy{max-width:var(--measure);color:#3d3a35}
.on-dark .body-copy,.on-dark .lede{color:rgba(255,255,255,.72)}

/* ---------- Spec strip (signature motif) ---------- */
.spec{
  display:flex;flex-wrap:wrap;gap:.35rem 2.5rem;
  border-top:1px solid currentColor;
  padding-top:.8rem;
  font-size:.72rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;
  color:var(--stone);
}
.spec span b{color:var(--onyx);font-weight:700;margin-left:.5em}
.on-dark .spec{color:rgba(255,255,255,.5)}
.on-dark .spec span b{color:var(--white)}

.rule{border:none;border-top:1px solid rgba(10,10,10,.16);margin:0}

/* ---------- Layout ---------- */
.container{width:min(1280px,100% - 2*var(--gutter));margin-inline:auto}
.section{padding-block:var(--section)}
.section--flush-b{padding-bottom:0}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.9rem;
  font-size:.78rem;font-weight:700;letter-spacing:.26em;text-transform:uppercase;
  padding:1.05rem 2.1rem;
  border:1px solid var(--onyx);
  color:var(--onyx);
  transition:background .35s var(--ease),color .35s var(--ease),border-color .35s var(--ease);
}
.btn .arrow{transition:transform .35s var(--ease)}
.btn:hover{background:var(--onyx);color:var(--bone)}
.btn:hover .arrow{transform:translateX(5px)}
.btn--solid{background:var(--terracotta);border-color:var(--terracotta);color:var(--white)}
.btn--solid:hover{background:var(--bronze);border-color:var(--bronze);color:var(--white)}
.btn--light{border-color:rgba(255,255,255,.85);color:var(--white)}
.btn--light:hover{background:var(--white);color:var(--onyx)}

.textlink{
  display:inline-flex;align-items:center;gap:.6rem;
  font-size:.78rem;font-weight:700;letter-spacing:.26em;text-transform:uppercase;
  color:var(--terracotta);
  border-bottom:1px solid transparent;
  padding-bottom:.2rem;
  transition:border-color .3s var(--ease),gap .3s var(--ease);
}
.textlink:hover{border-color:var(--terracotta);gap:.9rem}

/* ---------- Header ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:100;
  transition:background .45s var(--ease),box-shadow .45s var(--ease);
}
.site-header .container{
  display:flex;align-items:center;justify-content:space-between;
  padding-block:1.1rem;
  width:min(1440px,100% - 2*var(--gutter));
}
.brand{display:flex;align-items:center;gap:1rem}
.brand img{height:60px;width:auto;transition:opacity .3s}
.brand .logo-dark{display:none}
.brand-word{
  font-family:var(--font-display);font-size:1.15rem;letter-spacing:.42em;
  color:var(--white);transition:color .45s var(--ease);
  padding-left:.42em; /* optical balance for tracking */
}
.nav-list{display:flex;gap:2.75rem;align-items:center}
.nav-list a{
  font-size:.74rem;font-weight:700;letter-spacing:.26em;text-transform:uppercase;
  color:rgba(255,255,255,.85);
  padding-block:.4rem;
  position:relative;
  transition:color .45s var(--ease);
}
.nav-list a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:currentColor;transition:width .35s var(--ease);
}
.nav-list a:hover::after,.nav-list a[aria-current="page"]::after{width:100%}
.nav-cta{border:1px solid rgba(255,255,255,.7);padding:.65rem 1.4rem!important}
.nav-cta::after{display:none}
.nav-cta:hover{background:var(--white);color:var(--onyx)!important}

/* solid state after scroll / on light pages */
.site-header.is-solid{background:rgba(237,232,221,.92);backdrop-filter:blur(14px);box-shadow:0 1px 0 rgba(10,10,10,.08)}
.site-header.is-solid .brand .logo-white{display:none}
.site-header.is-solid .brand .logo-dark{display:block}
.site-header.is-solid .brand-word{color:var(--onyx)}
.site-header.is-solid .nav-list a{color:var(--onyx)}
.site-header.is-solid .nav-cta{border-color:var(--onyx)}
.site-header.is-solid .nav-cta:hover{background:var(--onyx);color:var(--bone)!important}

/* mobile nav */
.nav-toggle{display:none;z-index:110;width:44px;height:44px;position:relative}
.nav-toggle span{
  position:absolute;left:10px;right:10px;height:2px;background:var(--white);
  transition:transform .4s var(--ease),opacity .3s,background .45s;
}
.site-header.is-solid .nav-toggle span{background:var(--onyx)}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:22px}
.nav-toggle span:nth-child(3){top:29px}
.nav-toggle[aria-expanded="true"] span{background:var(--white)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media (max-width:860px){
  .nav-toggle{display:block}
  .site-nav{
    position:fixed;inset:0;background:var(--onyx);
    display:flex;align-items:center;justify-content:center;
    opacity:0;visibility:hidden;transition:opacity .45s var(--ease),visibility .45s;
  }
  .site-nav.is-open{opacity:1;visibility:visible}
  .nav-list{flex-direction:column;gap:2.2rem;text-align:center}
  .nav-list a{color:var(--bone)!important;font-size:1rem;letter-spacing:.3em}
  .nav-cta{border-color:var(--bone)!important}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;height:100svh;min-height:600px;
  display:flex;align-items:flex-end;
  color:var(--white);
  background:var(--onyx);
  overflow:hidden;
}
.hero__media{position:absolute;inset:0}
.hero__media video,.hero__media img{width:100%;height:100%;object-fit:cover}
.hero__scrim{
  position:absolute;inset:0;
  background:linear-gradient(to top,rgba(10,10,10,.72) 0%,rgba(10,10,10,.18) 42%,rgba(10,10,10,.28) 100%);
}
.hero__content{
  position:relative;z-index:2;
  width:min(1440px,100% - 2*var(--gutter));
  margin-inline:auto;
  padding-bottom:clamp(3rem,7vh,5.5rem);
}
.hero__content .eyebrow{color:rgba(255,255,255,.7);margin-bottom:1.4rem}
.hero__content .h-hero{max-width:12em}
.hero__foot{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:2rem;margin-top:2.6rem;
}
.hero__tag{font-size:1.05rem;color:rgba(255,255,255,.75);max-width:34ch;line-height:1.55}
.hero__actions{display:flex;gap:1rem;flex-wrap:wrap}

/* staged entrance */
.hero [data-stage]{opacity:0;transform:translateY(28px);transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease)}
.hero.is-ready [data-stage]{opacity:1;transform:none}
.hero.is-ready [data-stage="2"]{transition-delay:.18s}
.hero.is-ready [data-stage="3"]{transition-delay:.36s}
.hero.is-ready [data-stage="4"]{transition-delay:.54s}

.scroll-cue{
  position:absolute;right:var(--gutter);bottom:clamp(3rem,7vh,5.5rem);z-index:2;
  display:flex;flex-direction:column;align-items:center;gap:.8rem;
  font-size:.66rem;font-weight:700;letter-spacing:.3em;text-transform:uppercase;color:rgba(255,255,255,.6);
  writing-mode:vertical-rl;
}
.scroll-cue::after{
  content:"";width:1px;height:56px;background:linear-gradient(rgba(255,255,255,.7),transparent);
  animation:cue 2.4s var(--ease) infinite;
}
@keyframes cue{0%{transform:scaleY(0);transform-origin:top}45%{transform:scaleY(1);transform-origin:top}55%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}
@media (max-width:860px){.scroll-cue{display:none}}

/* page hero (interior pages) */
.page-hero{
  position:relative;min-height:62vh;display:flex;align-items:flex-end;
  background:var(--onyx);color:var(--white);overflow:hidden;
}
.page-hero__media{position:absolute;inset:0}
.page-hero__media img{width:100%;height:100%;object-fit:cover;opacity:.55}
.page-hero .container{position:relative;z-index:2;padding-block:clamp(3rem,7vh,5rem) clamp(2.5rem,6vh,4rem)}
.page-hero .eyebrow{margin-bottom:1.2rem}

/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(34px);transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease)}
.reveal.is-in{opacity:1;transform:none}
.reveal-img{overflow:hidden}
.reveal-img img{transform:scale(1.06);transition:transform 1.4s var(--ease)}
.reveal-img.is-in img{transform:scale(1)}

/* ---------- Manifesto ---------- */
.manifesto{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:clamp(2rem,6vw,6rem);align-items:start}
.manifesto .display{margin-top:1.2rem}
.manifesto__meta{display:grid;gap:1.6rem;padding-top:.4rem}
.manifesto__meta .spec{border-top-color:rgba(10,10,10,.2)}
@media (max-width:860px){.manifesto{grid-template-columns:1fr}}

/* ---------- Collections ---------- */
.collections-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:1.5rem;margin-bottom:clamp(2.5rem,5vw,4rem)}
.collection-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1.25rem,2.5vw,2.5rem)}
@media (max-width:960px){.collection-grid{grid-template-columns:1fr}}
.collection-card{display:flex;flex-direction:column;background:var(--white)}
.collection-card__media{position:relative;overflow:hidden;aspect-ratio:4/5}
.collection-card__media img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease)}
.collection-card:hover .collection-card__media img{transform:scale(1.05)}
.collection-card__index{
  position:absolute;top:1.1rem;left:1.25rem;z-index:2;
  font-size:.68rem;font-weight:700;letter-spacing:.3em;color:var(--white);
  text-transform:uppercase;
  text-shadow:0 1px 8px rgba(0,0,0,.35);
}
.collection-card__body{padding:1.75rem 1.75rem 2rem;display:flex;flex-direction:column;gap:1rem;flex:1}
.collection-card__body h3{font-family:var(--font-display);font-size:1.7rem;font-weight:400}
.collection-card__body p{color:#4c483f;flex:1}
.collection-card__links{display:flex;gap:1.8rem;flex-wrap:wrap;padding-top:.4rem}

/* ---------- Spaces editorial ---------- */
.on-dark{background:var(--onyx);color:var(--white)}
.spaces-head{max-width:52rem;margin-bottom:clamp(3rem,6vw,5rem)}
.space-row{
  display:grid;grid-template-columns:repeat(12,1fr);gap:clamp(1rem,2.5vw,2.5rem);
  align-items:center;
}
.space-row + .space-row{margin-top:clamp(3.5rem,7vw,6.5rem)}
.space-row__media{grid-column:1 / span 7}
.space-row__media img{width:100%;height:auto}
.space-row__text{grid-column:9 / span 4}
.space-row--flip .space-row__media{grid-column:6 / span 7;order:2}
.space-row--flip .space-row__text{grid-column:1 / span 4;order:1}
.space-row__text .eyebrow{margin-bottom:1rem}
.space-row__text h3{font-family:var(--font-display);font-size:clamp(1.7rem,2.6vw,2.4rem);font-weight:400;margin-bottom:1rem}
.space-row__text p{color:rgba(255,255,255,.7);margin-bottom:1.6rem}
.space-row__text .spec{margin-top:1.6rem}
@media (max-width:860px){
  .space-row__media,.space-row--flip .space-row__media{grid-column:1 / -1;order:1}
  .space-row__text,.space-row--flip .space-row__text{grid-column:1 / -1;order:2}
}

/* ---------- Finishes ---------- */
.finishes{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(2.5rem,6vw,6rem);align-items:start}
@media (max-width:900px){.finishes{grid-template-columns:1fr}}
.finish-list{border-top:1px solid rgba(10,10,10,.18)}
.finish-list li{
  display:flex;align-items:baseline;gap:2rem;
  padding:1.6rem .25rem;
  border-bottom:1px solid rgba(10,10,10,.18);
  transition:padding-left .35s var(--ease);
}
.finish-list li:hover{padding-left:1rem}
.finish-list .num{font-size:.72rem;font-weight:700;letter-spacing:.25em;color:var(--terracotta)}
.finish-list h3{font-family:var(--font-display);font-weight:400;font-size:clamp(1.5rem,2.4vw,2.1rem);flex:1}
.finish-list p{font-size:.95rem;color:var(--stone);max-width:24ch;text-align:right}
@media (max-width:600px){
  .finish-list li{flex-wrap:wrap;gap:.6rem 1.4rem}
  .finish-list p{text-align:left;max-width:none;width:100%}
}
.finishes__media{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}
.finishes__media figure:nth-child(2){margin-top:3rem}
.finishes__media img{width:100%;height:100%;object-fit:cover}

/* ---------- Values / Why ---------- */
.values-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(1.5rem,3vw,3rem);margin-top:clamp(2.5rem,5vw,4rem)}
@media (max-width:960px){.values-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.values-grid{grid-template-columns:1fr}}
.value{border-top:1px solid rgba(10,10,10,.2);padding-top:1.4rem}
.value .num{font-size:.72rem;font-weight:700;letter-spacing:.25em;color:var(--terracotta)}
.value h3{font-family:var(--font-display);font-weight:400;font-size:1.45rem;margin:.7rem 0 .7rem}
.value p{font-size:.98rem;color:#4c483f}
.on-dark .value{border-top-color:rgba(255,255,255,.22)}
.on-dark .value p{color:rgba(255,255,255,.68)}

/* ---------- Stats ---------- */
.stats{display:flex;flex-wrap:wrap;gap:clamp(2rem,6vw,6rem);margin-top:clamp(2.5rem,5vw,4rem)}
.stat .stat-n{font-family:var(--font-display);font-size:clamp(2.6rem,5vw,4.2rem);line-height:1;color:var(--onyx)}
.stat .stat-n em{color:var(--terracotta);font-style:normal}
.stat .stat-l{margin-top:.5rem;font-size:.74rem;font-weight:700;letter-spacing:.26em;text-transform:uppercase;color:var(--stone)}

/* ---------- Showroom band ---------- */
.showroom{position:relative;overflow:hidden;background:var(--onyx);color:var(--white)}
.showroom__bg{position:absolute;inset:0}
.showroom__bg img{width:100%;height:100%;object-fit:cover;opacity:.32}
.showroom .container{position:relative;z-index:2}
.showroom__grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:clamp(2.5rem,6vw,6rem);align-items:end}
@media (max-width:860px){.showroom__grid{grid-template-columns:1fr}}
.showroom__contact{display:grid;gap:1.5rem}
.contact-line{border-top:1px solid rgba(255,255,255,.25);padding-top:1rem}
.contact-line .label{display:block;font-size:.68rem;font-weight:700;letter-spacing:.28em;text-transform:uppercase;color:rgba(255,255,255,.55);margin-bottom:.35rem}
.contact-line a{font-size:1.12rem;transition:color .3s}
.contact-line a:hover{color:var(--sand)}

/* ---------- Footer ---------- */
.site-footer{background:#070707;color:rgba(255,255,255,.72);padding-block:clamp(3.5rem,7vw,5.5rem) 2rem}
.footer-grid{display:grid;grid-template-columns:minmax(0,2fr) repeat(3,minmax(0,1fr));gap:clamp(2rem,4vw,4rem)}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}
.site-footer .brand img{height:72px}
.footer-tag{margin-top:1.4rem;max-width:30ch;font-size:.95rem;color:rgba(255,255,255,.5)}
.footer-col h4{font-size:.7rem;font-weight:700;letter-spacing:.3em;text-transform:uppercase;color:rgba(255,255,255,.45);margin-bottom:1.3rem}
.footer-col li{margin-bottom:.75rem}
.footer-col a{transition:color .3s}
.footer-col a:hover{color:var(--sand)}
.footer-base{
  margin-top:clamp(3rem,6vw,4.5rem);padding-top:1.6rem;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;
  font-size:.82rem;color:rgba(255,255,255,.42);
}

/* ---------- Collections page ---------- */
.collection-detail{display:grid;grid-template-columns:repeat(12,1fr);gap:clamp(1.25rem,2.5vw,2.5rem)}
.collection-detail__media{grid-column:1 / span 7}
.collection-detail__media img{width:100%;height:auto}
.collection-detail__body{grid-column:9 / span 4;display:flex;flex-direction:column;justify-content:center;gap:1.3rem}
.collection-detail--flip .collection-detail__media{grid-column:6 / span 7;order:2}
.collection-detail--flip .collection-detail__body{grid-column:1 / span 4;order:1}
.collection-detail__body h2{font-family:var(--font-display);font-weight:400;font-size:clamp(1.9rem,3.2vw,2.8rem)}
.collection-detail__body .spec{margin-top:.4rem}
.collection-detail__links{display:flex;gap:1.8rem;flex-wrap:wrap;margin-top:.6rem}
.collection-detail + .collection-detail{margin-top:clamp(4rem,8vw,7rem)}
@media (max-width:860px){
  .collection-detail__media,.collection-detail--flip .collection-detail__media{grid-column:1 / -1;order:1}
  .collection-detail__body,.collection-detail--flip .collection-detail__body{grid-column:1 / -1;order:2}
}

/* ---------- About page ---------- */
.about-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:clamp(2.5rem,6vw,6rem);align-items:start}
@media (max-width:860px){.about-grid{grid-template-columns:1fr}}
.about-grid__media{display:grid;gap:1.25rem}
.about-grid__media img{width:100%;height:auto}

/* ---------- Contact page ---------- */
.contact-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:clamp(2.5rem,6vw,6rem)}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr}}
.contact-cards{display:grid;gap:1.5rem;align-content:start}
.contact-card{background:var(--white);padding:1.75rem;display:grid;gap:.4rem}
.contact-card .label{font-size:.68rem;font-weight:700;letter-spacing:.28em;text-transform:uppercase;color:var(--stone)}
.contact-card a{font-size:1.15rem;transition:color .3s}
.contact-card a:hover{color:var(--terracotta)}
.contact-card .sub{font-size:.92rem;color:var(--stone)}

.form{display:grid;gap:1.4rem;background:var(--white);padding:clamp(1.75rem,4vw,3rem)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem}
@media (max-width:600px){.form-row{grid-template-columns:1fr}}
.field{display:grid;gap:.45rem}
.field label{font-size:.7rem;font-weight:700;letter-spacing:.26em;text-transform:uppercase;color:var(--stone)}
.field input,.field select,.field textarea{
  font:inherit;color:var(--onyx);background:transparent;
  border:none;border-bottom:1px solid rgba(10,10,10,.25);
  padding:.65rem .1rem;border-radius:0;
  transition:border-color .3s;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-bottom-color:var(--terracotta)}
.field textarea{resize:vertical;min-height:120px}
.form-note{font-size:.85rem;color:var(--stone)}
.form-actions{display:flex;gap:1rem;flex-wrap:wrap;align-items:center}

.map-embed{margin-top:var(--section)}
.map-embed iframe{width:100%;height:440px;border:0;display:block;filter:grayscale(.85) contrast(1.04)}

/* WhatsApp float */
.wa-float{
  position:fixed;right:1.4rem;bottom:1.4rem;z-index:90;
  width:54px;height:54px;border-radius:50%;
  background:var(--terracotta);color:var(--white);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 30px rgba(10,10,10,.28);
  transition:transform .3s var(--ease),background .3s;
}
.wa-float:hover{transform:translateY(-3px);background:var(--bronze)}
.wa-float svg{width:26px;height:26px;fill:currentColor}

/* utility */
.mt-1{margin-top:1rem}.mt-2{margin-top:2rem}.mt-3{margin-top:3rem}
.white-bg{background:var(--white)}

/* ---------- Certifications (About) ---------- */
.certs-head{max-width:56rem;margin-bottom:clamp(2.5rem,5vw,4rem)}
.certs-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1.5rem,3vw,3rem)}
@media (max-width:860px){.certs-grid{grid-template-columns:1fr;max-width:440px}}
.cert-card{display:flex;flex-direction:column;gap:1.3rem}
.cert-card__frame{
  background:var(--white);
  border:1px solid rgba(10,10,10,.12);
  padding:clamp(1rem,2vw,1.6rem);
  transition:transform .5s var(--ease),box-shadow .5s var(--ease);
}
.cert-card:hover .cert-card__frame{transform:translateY(-6px);box-shadow:0 24px 50px -24px rgba(10,10,10,.28)}
.cert-card__frame img{width:100%;height:auto;display:block}
.cert-card__meta .num{font-size:.72rem;font-weight:700;letter-spacing:.25em;color:var(--terracotta)}
.cert-card__meta h3{font-family:var(--font-display);font-weight:400;font-size:1.5rem;margin:.55rem 0 .4rem}
.cert-card__meta p{font-size:.95rem;color:#4c483f}
.cert-card__meta .textlink{margin-top:.7rem}
.certs-note{margin-top:clamp(2.5rem,5vw,3.5rem)}

/* ---------- Form status ---------- */
.form-status{display:none;padding:1.1rem 1.3rem;font-size:.98rem;line-height:1.55;border-left:2px solid var(--sage);background:rgba(122,132,113,.09);color:var(--forest)}
.form-status.is-error{border-left-color:var(--terracotta);background:rgba(184,92,60,.08);color:var(--bronze)}
.form-status.is-visible{display:block}
.btn[disabled]{opacity:.55;cursor:not-allowed;pointer-events:none}
.hp-field{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}