/* ============================================================
   B&F Layers — site institucional
   Paleta grafite + filamento · tipografia Poppins + IBM Plex Mono
   Assinatura: linhas de camada (strata)
   ============================================================ */

:root{
  --ink:#15191E;          /* grafite */
  --ink-soft:#39434B;     /* texto corrido */
  --muted:#6B7680;
  --paper:#F4F4F2;        /* resina (fundo) */
  --card:#FFFFFF;
  --line:#E4E6E3;
  --acc:#F26A1B;          /* filamento */
  --acc-d:#D2550F;
  --dark:#15191E;
  --dark-2:#1E242B;
  --max:1180px;
  --display:'Poppins',-apple-system,'Helvetica Neue',Arial,sans-serif;
  --mono:'IBM Plex Mono','SF Mono',ui-monospace,Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--display);font-weight:400;line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:var(--max);margin:0 auto;padding:0 clamp(20px,5vw,40px)}
section{position:relative}

/* ---- tipografia ---- */
h1,h2,h3{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.1}
h1{font-size:clamp(34px,6vw,62px);font-weight:800}
h2{font-size:clamp(26px,4vw,42px)}
h3{font-size:20px;letter-spacing:-.01em}
p{margin:0 0 16px}
.eyebrow{
  font-family:var(--mono);font-size:12.5px;letter-spacing:3px;text-transform:uppercase;
  color:var(--acc-d);margin:0 0 16px;display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:26px;height:8px;border-radius:2px;
  background:repeating-linear-gradient(to bottom,var(--acc) 0 2px,transparent 2px 3.5px)}
.lead{font-size:clamp(17px,2vw,20px);color:var(--ink-soft);max-width:60ch}

/* ---- strata divider (assinatura) ---- */
.strata{height:9px;background:repeating-linear-gradient(to bottom,var(--acc) 0 2px,transparent 2px 4px);
  opacity:.9;border-radius:2px}

/* ---- botões ---- */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--display);font-weight:600;
  font-size:15px;padding:14px 22px;border-radius:10px;border:2px solid transparent;cursor:pointer;
  transition:transform .15s ease,background .2s ease,border-color .2s ease,color .2s ease;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn:focus-visible{outline:3px solid var(--acc);outline-offset:3px}
.btn-primary{background:var(--acc);color:var(--ink);font-weight:700}
.btn-primary:hover{background:#ff7a2e}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-light{background:#fff;color:var(--ink);font-weight:700}
.btn-light:hover{background:#f0f0ee}
.btn svg{width:18px;height:18px}

/* ============================================================ NAV */
.nav{position:sticky;top:0;z-index:50;background:rgba(244,244,242,.86);
  backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:11px}
.brand .brandmark{height:28px;width:auto}
.brand .brandtype{font-weight:800;font-size:20px;letter-spacing:-.03em;color:var(--ink)}
.brand .brandtype b{color:var(--acc);font-weight:800}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{font-size:15px;font-weight:500;color:var(--ink-soft);transition:color .2s}
.nav-links a:hover{color:var(--ink)}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.3s;border-radius:2px}

/* ============================================================ HERO */
.hero{padding:clamp(48px,8vw,96px) 0 clamp(40px,6vw,72px);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1 span.acc{color:var(--acc)}
.hero .lead{margin:22px 0 30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-meta{display:flex;gap:34px;margin-top:34px;flex-wrap:wrap}
.hero-meta div{font-family:var(--mono);font-size:12.5px;color:var(--muted);letter-spacing:.5px;max-width:160px}
.hero-meta strong{display:block;font-family:var(--display);font-size:19px;color:var(--ink);font-weight:700;letter-spacing:-.01em}

/* visual do hero — peça impressa em camadas */
.printbox{position:relative;max-width:440px;margin-left:auto;width:100%;overflow:hidden;
  background:radial-gradient(120% 120% at 70% 20%,#fff 0%,#f0f1ee 100%);
  border:1px solid var(--line);border-radius:24px;
  box-shadow:0 30px 60px -40px rgba(21,25,30,.45)}
.printbox::before{content:"";display:block;padding-bottom:100%}
.printbox .plate{position:absolute;bottom:14%;left:12%;right:12%;height:6px;border-radius:4px;background:var(--ink);opacity:.8}
.printbox .layers{position:absolute;left:0;right:0;bottom:16%;display:flex;flex-direction:column-reverse;align-items:center;gap:5px}
.printbox .layers i{display:block;height:13px;border-radius:4px;background:var(--acc);
  transform-origin:center;animation:rise .6s ease both}
.printbox .layers i:nth-child(1){width:150px}
.printbox .layers i:nth-child(2){width:120px;animation-delay:.08s}
.printbox .layers i:nth-child(3){width:138px;animation-delay:.16s}
.printbox .layers i:nth-child(4){width:104px;animation-delay:.24s}
.printbox .layers i:nth-child(5){width:124px;animation-delay:.32s}
.printbox .layers i:nth-child(6){width:88px;background:var(--acc-d);animation-delay:.40s}
.printbox .nozzle{position:absolute;top:14%;width:30px;height:30px;background:var(--ink);border-radius:6px 6px 10px 10px;
  animation:scan 3.6s ease-in-out infinite alternate}
.printbox .nozzle::after{content:"";position:absolute;bottom:-7px;left:50%;transform:translateX(-50%);
  border-left:7px solid transparent;border-right:7px solid transparent;border-top:9px solid var(--ink)}
@keyframes rise{from{transform:translateY(16px) scaleX(.7)}to{transform:none}}
@keyframes scan{from{transform:translateX(-70px)}to{transform:translateX(70px)}}
@media(prefers-reduced-motion:reduce){.printbox .layers i,.printbox .nozzle{animation:none}.printbox .nozzle{display:none}}

/* ============================================================ SOBRE */
.sobre{padding:clamp(56px,8vw,90px) 0}
.sobre-grid{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:start}
.sobre h2{margin-bottom:22px}
.values{display:grid;gap:16px;margin-top:8px}
.value{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px 24px;
  transition:transform .2s,box-shadow .2s}
.value:hover{transform:translateY(-3px);box-shadow:0 18px 40px -30px rgba(21,25,30,.4)}
.value h3{margin-bottom:6px}
.value p{margin:0;color:var(--ink-soft);font-size:15px}
.value .tag{font-family:var(--mono);font-size:11px;color:var(--acc-d);letter-spacing:1.5px;text-transform:uppercase}

/* ============================================================ CATÁLOGO */
.catalogo{padding:clamp(56px,8vw,90px) 0;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cat-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:38px}
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cat-card{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--card);
  transition:transform .2s,box-shadow .2s;display:flex;flex-direction:column}
.cat-card:hover{transform:translateY(-5px);box-shadow:0 26px 50px -34px rgba(21,25,30,.5)}
/* área de imagem (substituível por foto real) */
.thumb{position:relative;overflow:hidden;background:linear-gradient(135deg,#1b2026,#262e36)}
.thumb::before{content:"";display:block;padding-bottom:75%}
.thumb .pattern{position:absolute;inset:0;background-image:repeating-linear-gradient(to bottom,rgba(242,106,27,.0) 0 12px,rgba(242,106,27,.16) 12px 14px);opacity:.9}
.thumb .ico{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.thumb .ico svg{width:64px;height:64px}
.thumb .badge{position:absolute;left:14px;top:14px;font-family:var(--mono);font-size:11px;letter-spacing:1px;
  color:#fff;background:rgba(0,0,0,.35);border:1px solid rgba(255,255,255,.18);padding:4px 10px;border-radius:999px}
.cat-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.cat-card h3{font-size:18px}
.cat-card p{margin:0;color:var(--ink-soft);font-size:14.5px;flex:1}
.cat-card .more{font-family:var(--mono);font-size:12px;color:var(--acc-d);letter-spacing:1px;
  display:inline-flex;align-items:center;gap:7px;margin-top:4px}
.cat-card .more svg{width:14px;height:14px;transition:transform .2s}
.cat-card:hover .more svg{transform:translateX(4px)}
.cat-note{font-family:var(--mono);font-size:12px;color:var(--muted);margin-top:26px;text-align:center}

/* ============================================================ PROCESSO */
.processo{padding:clamp(56px,8vw,90px) 0}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:40px}
.step{position:relative;padding-top:26px}
.step .num{font-family:var(--mono);font-size:13px;color:var(--acc-d);letter-spacing:2px}
.step .bar{height:8px;border-radius:2px;margin:12px 0 16px;
  background:repeating-linear-gradient(to right,var(--acc) 0 7px,transparent 7px 11px)}
.step h3{font-size:17px;margin-bottom:7px}
.step p{margin:0;font-size:14.5px;color:var(--ink-soft)}

/* ============================================================ CTA BAND */
.cta-band{background:var(--dark);color:#fff;padding:clamp(50px,7vw,80px) 0;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;opacity:.5;
  background:repeating-linear-gradient(to bottom,rgba(242,106,27,.12) 0 2px,transparent 2px 22px)}
.cta-in{position:relative;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cta-in h2{color:#fff;max-width:18ch}
.cta-in p{color:#AEB6BC;margin:10px 0 0;max-width:42ch}

/* ============================================================ CONTATO */
.contato{padding:clamp(56px,8vw,90px) 0;background:#fff;border-top:1px solid var(--line)}
.contato-grid{display:grid;grid-template-columns:1fr 1fr;gap:54px}
.channels{display:grid;gap:14px;margin-top:8px}
.channel{display:flex;align-items:center;gap:16px;padding:16px 18px;border:1px solid var(--line);
  border-radius:12px;transition:border-color .2s,transform .2s;background:var(--card)}
.channel:hover{border-color:var(--acc);transform:translateX(4px)}
.channel .ic{width:42px;height:42px;border-radius:10px;background:var(--paper);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.channel .ic svg{width:21px;height:21px}
.channel .t{font-weight:600}.channel .s{font-size:13.5px;color:var(--muted);font-family:var(--mono)}
/* mini-form que abre o WhatsApp (sem backend) */
.form{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:26px}
.form label{display:block;font-size:13px;font-weight:600;margin:0 0 6px;color:var(--ink)}
.form input,.form textarea{width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:10px;
  font-family:var(--display);font-size:15px;background:#fff;color:var(--ink);margin-bottom:16px;resize:vertical}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--acc);box-shadow:0 0 0 3px rgba(242,106,27,.15)}
.form .btn{width:100%;justify-content:center}

/* ============================================================ FOOTER */
footer{background:var(--dark);color:#C7CDD0;padding:54px 0 30px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:40px}
footer .logo img{height:30px;margin-bottom:16px}
footer p{color:#9AA3AA;font-size:14.5px;max-width:34ch}
footer h4{font-family:var(--mono);font-size:12px;letter-spacing:2px;text-transform:uppercase;color:#fff;margin:0 0 16px}
footer ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
footer a{color:#AEB6BC;font-size:14.5px;transition:color .2s}
footer a:hover{color:var(--acc)}
.foot-bottom{border-top:1px solid #2A333C;padding-top:22px;display:flex;justify-content:space-between;
  gap:14px;flex-wrap:wrap;font-family:var(--mono);font-size:12px;color:#7A848C}

/* ============================================================ REVEAL */
.js .reveal{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}}

/* ============================================================ RESPONSIVO */
@media(max-width:920px){
  .hero-grid,.sobre-grid,.contato-grid{grid-template-columns:1fr;gap:40px}
  .printbox{margin:0 auto;max-width:360px}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .nav-links{position:fixed;inset:68px 0 auto 0;background:var(--paper);flex-direction:column;
    gap:0;padding:8px 0;border-bottom:1px solid var(--line);transform:translateY(-130%);
    transition:transform .3s ease;box-shadow:0 20px 40px -30px rgba(0,0,0,.4)}
  .nav-links.open{transform:translateY(0)}
  .nav-links a{width:100%;padding:14px 28px}
  .nav-toggle{display:block}
  .nav .nav-cta .btn-ghost{display:none}
  .cat-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .cta-in{flex-direction:column;align-items:flex-start}
}

/* ajuste fino: marca em uma linha */
.brand .brandtype{white-space:nowrap}
@media(max-width:680px){.brand .brandtype{font-size:17px}}

/* ============================================================ MÁQUINAS */
.maquinas{padding:clamp(40px,6vw,72px) 0 clamp(20px,3vw,28px)}
.mac-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.mac{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:30px 26px;
  position:relative;overflow:hidden;transition:transform .2s,box-shadow .2s}
.mac:hover{transform:translateY(-4px);box-shadow:0 24px 50px -34px rgba(21,25,30,.5)}
.mac::before{content:"";position:absolute;top:0;left:0;right:0;height:5px;
  background:repeating-linear-gradient(to right,var(--acc) 0 7px,transparent 7px 11px)}
.mac-tag{font-family:var(--mono);font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:var(--muted)}
.mac-ic{width:50px;height:50px;border-radius:13px;background:var(--paper);display:flex;
  align-items:center;justify-content:center;margin:16px 0 16px}
.mac-ic svg{width:27px;height:27px}
.mac h3{font-size:18px;margin-bottom:8px}
.mac p{margin:0;color:var(--ink-soft);font-size:14.5px}
@media(max-width:920px){.mac-grid{grid-template-columns:1fr 1fr}}
@media(max-width:680px){.mac-grid{grid-template-columns:1fr}}