/* ============================================================
   Gold Brasil Polímeros — Estilo
   Direção: industrial premium · carvão + ouro metálico + prata
   ============================================================ */

:root{
  --ink:#0b0c0f;
  --ink-2:#101217;
  --panel:#15171d;
  --panel-2:#1b1e26;
  --line:rgba(201,164,76,.22);
  --line-soft:rgba(255,255,255,.08);

  --gold:#c9a44c;
  --gold-bright:#e9c874;
  --gold-deep:#9c7c33;
  --silver:#c3c8d0;

  --paper:#f5f4f0;
  --paper-2:#eceae3;

  --text:#eef0f3;
  --muted:#9aa0aa;
  --muted-2:#767c86;
  --ink-text:#16181d;

  --gold-melt:linear-gradient(103deg,#8a6d2b 0%,#e9c874 34%,#c9a44c 52%,#f6e3a8 70%,#9c7c33 100%);
  --shadow:0 24px 60px -24px rgba(0,0,0,.7);

  --maxw:1200px;
  --r:14px;
  --r-lg:22px;

  --f-display:"Space Grotesk",system-ui,sans-serif;
  --f-body:"Inter",system-ui,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--f-body);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

/* subtle grain overlay */
body::before{
  content:"";position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- Type ---------- */
h1,h2,h3,h4{font-family:var(--f-display);font-weight:600;line-height:1.08;margin:0;letter-spacing:-.01em}
.eyebrow{
  font-family:var(--f-display);
  font-size:.72rem;font-weight:600;letter-spacing:.28em;text-transform:uppercase;
  display:inline-flex;align-items:center;gap:.7em;color:var(--gold-bright);
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--gold-melt)}
.gold-text{
  background:var(--gold-melt);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.lead{color:var(--muted);font-size:1.075rem;max-width:60ch}

/* ---------- Buttons ---------- */
.btn{
  --pad:15px 26px;
  display:inline-flex;align-items:center;gap:.6em;
  font-family:var(--f-display);font-weight:600;font-size:.95rem;letter-spacing:.01em;
  padding:var(--pad);border-radius:999px;cursor:pointer;border:1px solid transparent;
  transition:transform .25s cubic-bezier(.2,.7,.3,1),box-shadow .25s,background .25s,color .25s;
}
.btn svg{width:18px;height:18px}
.btn-gold{
  background:var(--gold-melt);color:#1a1405;box-shadow:0 12px 30px -12px rgba(201,164,76,.65);
  background-size:180% 180%;
}
.btn-gold:hover{transform:translateY(-2px);background-position:100% 0}
.btn-ghost{border-color:var(--line);color:var(--text);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-bright);transform:translateY(-2px)}
.btn-wa{background:#25d366;color:#04340f}
.btn-wa:hover{transform:translateY(-2px);box-shadow:0 12px 30px -12px rgba(37,211,102,.6)}

/* ---------- Top strip ---------- */
.topbar{
  position:relative;z-index:20;background:var(--ink-2);border-bottom:1px solid var(--line-soft);
  font-size:.82rem;color:var(--muted);
}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:20px;min-height:42px;flex-wrap:wrap}
.topbar a{display:inline-flex;align-items:center;gap:.5em;transition:color .2s}
.topbar a:hover{color:var(--gold-bright)}
.topbar .tb-right{display:flex;gap:22px;align-items:center}
.topbar svg{width:14px;height:14px;color:var(--gold)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:30;background:rgba(11,12,15,.72);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);transition:background .3s,border-color .3s;
}
.site-header.scrolled{background:rgba(11,12,15,.94);border-color:var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:76px;gap:20px}
.brand{display:flex;align-items:center;gap:13px}
.brand img{width:46px;height:46px}
.brand .bname{font-family:var(--f-display);font-weight:600;font-size:1.02rem;line-height:1.05;letter-spacing:.02em}
.brand .bname small{display:block;font-size:.62rem;letter-spacing:.34em;color:var(--gold);font-weight:500;text-transform:uppercase}
.nav-links{display:flex;gap:6px;align-items:center}
.nav-links a{
  font-family:var(--f-display);font-size:.92rem;font-weight:500;color:var(--muted);
  padding:9px 14px;border-radius:8px;transition:color .2s,background .2s;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:10px;padding:9px;cursor:pointer}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--gold-bright);margin:4px 0;transition:.3s}

/* ---------- Section scaffolding ---------- */
section{position:relative;z-index:2}
.sec{padding:110px 0}
.sec-head{max-width:720px;margin-bottom:56px}
.sec-head h2{font-size:clamp(2rem,4vw,3rem);margin:16px 0 18px}
.divider{height:1px;background:var(--gold-melt);opacity:.5;max-width:var(--maxw);margin:0 auto}

/* ---------- HERO ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink);isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-2}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.42;filter:contrast(1.05) saturate(1.05)}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(120% 80% at 78% 20%,rgba(201,164,76,.16),transparent 55%),
    linear-gradient(180deg,rgba(11,12,15,.62) 0%,rgba(11,12,15,.82) 55%,var(--ink) 100%);
}
.hero-inner{padding:120px 0 128px;max-width:820px}
.hero h1{font-size:clamp(2.6rem,6.2vw,4.9rem);letter-spacing:-.025em;margin:26px 0 24px}
.hero h1 .gold-text{display:inline}
.hero .lead{font-size:1.2rem;max-width:56ch;color:#c7ccd4}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:38px}
.hero-trust{display:flex;gap:34px;flex-wrap:wrap;margin-top:56px;padding-top:30px;border-top:1px solid var(--line-soft)}
.hero-trust .t{max-width:180px}
.hero-trust .t b{font-family:var(--f-display);font-size:1.9rem;display:block;line-height:1}
.hero-trust .t span{font-size:.82rem;color:var(--muted);line-height:1.35;display:block;margin-top:6px}

/* ---------- Diferenciais ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feat{
  background:linear-gradient(180deg,var(--panel),var(--ink-2));
  border:1px solid var(--line-soft);border-radius:var(--r-lg);padding:30px 26px 32px;
  transition:transform .3s,border-color .3s,box-shadow .3s;position:relative;overflow:hidden;
}
.feat:hover{transform:translateY(-6px);border-color:var(--line);box-shadow:var(--shadow)}
.feat .ic{
  width:52px;height:52px;border-radius:13px;display:grid;place-items:center;margin-bottom:20px;
  background:rgba(201,164,76,.1);border:1px solid var(--line);
}
.feat .ic svg{width:26px;height:26px;color:var(--gold-bright)}
.feat h3{font-size:1.14rem;margin-bottom:9px}
.feat p{color:var(--muted);font-size:.94rem;margin:0}

/* ---------- Produtos ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{
  background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--r-lg);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .3s,border-color .3s,box-shadow .3s;
}
.card:hover{transform:translateY(-6px);border-color:var(--line);box-shadow:var(--shadow)}
.card .ph{aspect-ratio:16/11;overflow:hidden;position:relative}
.card .ph img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.2,.7,.3,1)}
.card:hover .ph img{transform:scale(1.06)}
.card .ph::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(11,12,15,.55))}
.card .tag{
  position:absolute;top:14px;left:14px;z-index:2;font-family:var(--f-display);font-size:.7rem;
  font-weight:600;letter-spacing:.14em;text-transform:uppercase;padding:6px 11px;border-radius:999px;
  background:rgba(11,12,15,.72);border:1px solid var(--line);color:var(--gold-bright);
  backdrop-filter:blur(4px);
}
.card .body{padding:24px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.card h3{font-size:1.24rem}
.card p{color:var(--muted);font-size:.93rem;margin:0}
.card .apps{display:flex;flex-wrap:wrap;gap:7px;margin-top:6px}
.card .apps span{font-size:.74rem;color:var(--silver);border:1px solid var(--line-soft);border-radius:999px;padding:4px 10px}

/* ---------- Split (Sustentabilidade / Sobre) ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:60px;align-items:center}
.split.rev{grid-template-columns:1fr 1.05fr}
.split.rev .split-media{order:-1}
.split-media{border-radius:var(--r-lg);overflow:hidden;position:relative;border:1px solid var(--line-soft);box-shadow:var(--shadow)}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:5/4}
.split h2{font-size:clamp(1.9rem,3.6vw,2.7rem);margin:16px 0 20px}
.split p{color:var(--muted);margin:0 0 16px}
.check{list-style:none;padding:0;margin:22px 0 30px;display:grid;gap:13px}
.check li{display:flex;gap:12px;align-items:flex-start;color:var(--text);font-size:.97rem}
.check svg{width:22px;height:22px;color:var(--gold-bright);flex:none;margin-top:1px}

/* section tones */
.tone-panel{background:var(--ink-2)}
.tone-deep{background:radial-gradient(140% 100% at 80% 0,rgba(201,164,76,.06),transparent 60%),var(--ink)}

/* ---------- CTA band ---------- */
.ctaband{position:relative;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.ctaband .wrap{display:flex;align-items:center;justify-content:space-between;gap:40px;padding:64px 24px;flex-wrap:wrap}
.ctaband h2{font-size:clamp(1.7rem,3.4vw,2.5rem);max-width:20ch}
.ctaband .bg-g{position:absolute;right:-60px;top:50%;transform:translateY(-50%);width:420px;opacity:.14;z-index:-1;filter:saturate(1.1)}

/* ---------- FAQ ---------- */
.faq{max-width:840px;margin:0 auto}
.qa{border-bottom:1px solid var(--line-soft)}
.qa button{
  width:100%;background:none;border:none;color:var(--text);cursor:pointer;text-align:left;
  font-family:var(--f-display);font-weight:500;font-size:1.08rem;padding:24px 44px 24px 0;position:relative;
}
.qa button::after{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:1.5rem;color:var(--gold-bright);transition:transform .3s;line-height:1;
}
.qa.open button::after{content:"–"}
.qa .ans{max-height:0;overflow:hidden;transition:max-height .4s ease}
.qa .ans p{color:var(--muted);margin:0 0 24px;padding-right:20px}

/* ---------- Contato (light) ---------- */
.contact{background:linear-gradient(180deg,var(--paper),var(--paper-2));color:var(--ink-text)}
.contact .eyebrow{color:var(--gold-deep)}
.contact .eyebrow::before{background:var(--gold-deep)}
.contact h2{color:var(--ink-text);font-size:clamp(2rem,4vw,3rem)}
.contact .lead{color:#555b63}
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:52px;margin-top:52px}
.info-block{display:grid;gap:20px}
.info-item{display:flex;gap:15px;align-items:flex-start}
.info-item .ic{width:44px;height:44px;border-radius:12px;background:#fff;border:1px solid #e2ded3;display:grid;place-items:center;flex:none;box-shadow:0 6px 16px -10px rgba(0,0,0,.25)}
.info-item .ic svg{width:21px;height:21px;color:var(--gold-deep)}
.info-item h4{font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;color:#8a8579;margin-bottom:3px}
.info-item p{margin:0;color:var(--ink-text);font-weight:500}
.info-item a{color:var(--ink-text);transition:color .2s}
.info-item a:hover{color:var(--gold-deep)}
.map{margin-top:28px;border-radius:var(--r);overflow:hidden;border:1px solid #e2ded3;box-shadow:0 10px 30px -18px rgba(0,0,0,.4)}
.map iframe{display:block;width:100%;height:230px;border:0;filter:grayscale(.25)}

.form{background:#fff;border:1px solid #e6e2d7;border-radius:var(--r-lg);padding:34px;box-shadow:0 30px 70px -40px rgba(0,0,0,.4)}
.form h3{color:var(--ink-text);font-size:1.35rem;margin-bottom:6px}
.form .sub{color:#6c7178;font-size:.92rem;margin:0 0 24px}
.field{margin-bottom:16px}
.field label{display:block;font-size:.82rem;font-weight:600;color:#4a4f56;margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border:1px solid #d9d5c9;border-radius:11px;background:#faf9f6;
  font-family:var(--f-body);font-size:.98rem;color:var(--ink-text);transition:border-color .2s,box-shadow .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(201,164,76,.18);background:#fff;
}
.field textarea{resize:vertical;min-height:110px}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form .btn{width:100%;justify-content:center;margin-top:6px}
.form .note{font-size:.78rem;color:#8a8579;text-align:center;margin:14px 0 0}

/* ---------- Footer ---------- */
.footer{background:var(--ink);border-top:1px solid var(--line-soft);padding:70px 0 34px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px}
.footer .brand{margin-bottom:18px}
.footer p.desc{color:var(--muted);font-size:.92rem;max-width:38ch}
.footer h5{font-family:var(--f-display);font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);margin:0 0 16px}
.footer ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.footer ul a{color:var(--muted);font-size:.92rem;transition:color .2s}
.footer ul a:hover{color:var(--gold-bright)}
.footer .legal{color:var(--muted-2);font-size:.82rem;line-height:1.7}
.footer-bottom{
  margin-top:48px;padding-top:26px;border-top:1px solid var(--line-soft);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--muted-2);font-size:.82rem;
}
.footer-bottom a{color:var(--muted);transition:color .2s}
.footer-bottom a:hover{color:var(--gold-bright)}

/* ---------- Floating WhatsApp ---------- */
.wa-float{
  position:fixed;right:22px;bottom:22px;z-index:60;width:58px;height:58px;border-radius:50%;
  background:#25d366;display:grid;place-items:center;box-shadow:0 14px 34px -10px rgba(37,211,102,.6);
  transition:transform .25s;animation:wa-pulse 2.6s infinite;
}
.wa-float:hover{transform:scale(1.08)}
.wa-float svg{width:30px;height:30px;color:#fff}
@keyframes wa-pulse{0%{box-shadow:0 14px 34px -10px rgba(37,211,102,.6),0 0 0 0 rgba(37,211,102,.4)}70%{box-shadow:0 14px 34px -10px rgba(37,211,102,.6),0 0 0 16px rgba(37,211,102,0)}100%{box-shadow:0 14px 34px -10px rgba(37,211,102,.6),0 0 0 0 rgba(37,211,102,0)}}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:960px){
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .split,.split.rev{grid-template-columns:1fr;gap:34px}
  .split.rev .split-media{order:0}
  .contact-grid{grid-template-columns:1fr;gap:36px}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .footer-top .fcol-brand{grid-column:1/-1}
}
@media(max-width:720px){
  .nav-links,.topbar .tb-left{display:none}
  .nav-cta .btn-gold{display:none}      /* CTA lives in menu + hero on mobile */
  .nav-toggle{display:block}
  .topbar .tb-right{gap:14px;justify-content:center;width:100%}
  .topbar .tb-right a{font-size:.76rem}
  .nav-links.open{
    display:flex;position:absolute;top:76px;left:0;right:0;flex-direction:column;gap:0;
    background:var(--ink-2);border-bottom:1px solid var(--line);padding:10px 16px 18px;
  }
  .nav-links.open a{padding:14px 10px;border-bottom:1px solid var(--line-soft)}
  .sec{padding:78px 0}
  .hero-inner{padding:80px 0 90px}
  .hero-trust{gap:24px}
  .form .row{grid-template-columns:1fr}
}
@media(max-width:520px){
  body{font-size:16px}
  .topbar .tb-right a:last-child{display:none} /* email → footer/form on small screens */
  .topbar .tb-right{justify-content:center}
  .feat-grid,.prod-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .ctaband .wrap{padding:48px 24px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important}
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}