/* =========================================================
   NSF — Design System
   Paleta: azul institucional, verde e âmbar da marca, sobre
   base clara "papel de planta baixa". Tipografia técnica
   (Space Grotesk + Inter) e motivo de "linhas de prateleira"
   como assinatura visual recorrente.
   ========================================================= */

:root{
  --blue-900:#082B73;
  --blue-700:#0B3FA6;
  --blue-500:#1E56C9;
  --green-600:#5FA31A;
  --green-500:#6FB721;
  --amber-500:#F2A20C;
  --amber-600:#D98A05;

  --ink:#10151C;
  --ink-soft:#42505F;
  --paper:#F5F6F2;
  --paper-alt:#ECEFE7;
  --line:#D9DED2;
  --white:#FFFFFF;

  --font-display:'Space Grotesk', 'Inter', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'JetBrains Mono', monospace;

  --radius-s:6px;
  --radius-m:12px;
  --radius-l:22px;
  --shadow-card:0 1px 2px rgba(16,21,28,.04), 0 8px 24px -12px rgba(16,21,28,.18);
  --shadow-card-hover:0 4px 10px rgba(16,21,28,.06), 0 20px 40px -16px rgba(11,63,166,.28);
  --wrap:1180px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
button{font:inherit;cursor:pointer;}
h1,h2,h3,h4{font-family:var(--font-display);margin:0 0 .5em;line-height:1.12;letter-spacing:-0.01em;}
p{margin:0 0 1em;color:var(--ink-soft);line-height:1.65;}

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

.skiplink a{
  position:absolute;left:-999px;top:0;background:var(--blue-900);color:#fff;padding:10px 16px;z-index:999;
}
.skiplink a:focus{left:10px;top:10px;}

.ico{display:inline-flex;width:1.4em;height:1.4em;}
.ico svg{width:100%;height:100%;}
.ico-sm{width:1.1em;height:1.1em;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 22px;border-radius:999px;
  font-weight:600;font-size:.94rem;
  border:1.5px solid transparent;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
  white-space:nowrap;
}
.btn-sm{padding:9px 16px;font-size:.86rem;}
.btn-primary{background:var(--blue-700);color:#fff;}
.btn-primary:hover{background:var(--blue-900);transform:translateY(-1px);}
.btn-outline{border-color:var(--ink);color:var(--ink);}
.btn-outline:hover{background:var(--ink);color:#fff;}
.btn-outline-light{border-color:rgba(255,255,255,.5);color:#fff;}
.btn-outline-light:hover{background:#fff;color:var(--blue-900);}
.btn-green{background:var(--green-600);color:#fff;}
.btn-green:hover{background:#4d8a15;transform:translateY(-1px);}
.btn-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;
  background:var(--paper-alt);color:var(--blue-700);
}
.btn-icon:hover{background:var(--green-500);color:#fff;}
.btn-block{width:100%;justify-content:center;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(245,246,242,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:76px;gap:24px;}
.brand{display:flex;flex-direction:column;line-height:1;gap:3px;}
.brand-mark{font-family:var(--font-display);font-weight:700;font-size:1.55rem;color:var(--blue-900);letter-spacing:-0.02em;}
.brand-sub{font-size:.62rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft);}

.main-nav{display:flex;align-items:center;gap:30px;font-weight:600;font-size:.92rem;}
.main-nav > a{position:relative;padding:8px 0;}
.main-nav > a::after{content:"";position:absolute;left:0;bottom:2px;width:0;height:2px;background:var(--green-500);transition:width .2s ease;}
.main-nav > a:hover::after{width:100%;}

.nav-drop{position:relative;}
.nav-drop > a{display:block;padding:8px 0;}
.nav-drop-panel{
  position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(6px);
  display:flex;gap:36px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-m);
  padding:22px 26px;box-shadow:var(--shadow-card-hover);
  opacity:0;visibility:hidden;transition:opacity .18s ease, transform .18s ease;
  min-width:420px;
}
.nav-drop:hover .nav-drop-panel,
.nav-drop:focus-within .nav-drop-panel{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);}
.nav-drop-col{display:flex;flex-direction:column;gap:10px;min-width:150px;}
.nav-drop-eyebrow{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--amber-600);margin:0 0 4px;}
.nav-drop-col a{font-weight:500;font-size:.88rem;color:var(--ink-soft);}
.nav-drop-col a:hover{color:var(--blue-700);}

.header-cta{display:flex;align-items:center;gap:10px;}
.nav-toggle{display:none;background:none;border:none;color:var(--ink);width:36px;height:36px;}

/* ---------- Shelf-line motif (assinatura visual) ---------- */
.shelf-lines{
  display:block;width:100%;height:26px;
  background-image:repeating-linear-gradient(to bottom, var(--line) 0 2px, transparent 2px 100%);
  background-size:100% 8px;
  opacity:.9;
}
.shelf-divider{position:relative;height:1px;background:var(--line);margin:0;}
.shelf-divider::before{
  content:"";position:absolute;left:0;right:0;top:-9px;height:8px;
  background-repeat:repeat-x;background-size:14px 8px;
  background-image:linear-gradient(90deg, var(--line) 1.5px, transparent 1.5px);
  opacity:.6;
}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg, #fff 0%, var(--paper) 100%);
  border-bottom:1px solid var(--line);
}
.hero-inner{
  display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;
  padding:76px 24px 64px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--blue-700);background:#fff;border:1px solid var(--line);
  padding:6px 12px;border-radius:999px;margin-bottom:22px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--green-500);}
.hero h1{font-size:clamp(2.3rem,4.4vw,3.6rem);color:var(--blue-900);max-width:12ch;}
.hero h1 em{font-style:normal;color:var(--green-600);}
.hero-lead{font-size:1.08rem;max-width:46ch;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin:28px 0 34px;}
.hero-stats{display:flex;gap:34px;flex-wrap:wrap;}
.hero-stats div{display:flex;flex-direction:column;}
.hero-stats strong{font-family:var(--font-display);font-size:1.7rem;color:var(--blue-900);}
.hero-stats span{font-size:.78rem;color:var(--ink-soft);}

.hero-art{position:relative;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;}
.hero-art svg{width:100%;height:100%;}
.blueprint-tag{
  position:absolute;background:#fff;border:1px solid var(--line);border-radius:var(--radius-s);
  font-family:var(--font-mono);font-size:.68rem;padding:5px 9px;color:var(--blue-700);
  box-shadow:var(--shadow-card);
}

/* ---------- Sections ---------- */
.section{padding:88px 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:640px;margin:0 0 44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-eyebrow{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--amber-600);margin-bottom:10px;display:block;}
.section-head h2{font-size:clamp(1.7rem,3vw,2.4rem);color:var(--blue-900);}

.bg-ink{background:var(--ink);color:#fff;}
.bg-ink .section-head h2{color:#fff;}
.bg-ink p{color:#B9C2CC;}

/* ---------- Category grid ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.cat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-m);
  padding:28px 24px;position:relative;overflow:hidden;
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:transparent;}
.cat-card .ico{width:42px;height:42px;color:var(--blue-700);margin-bottom:18px;}
.cat-card h3{font-size:1.15rem;margin-bottom:8px;}
.cat-card p{font-size:.9rem;margin-bottom:16px;}
.cat-card .cat-link{
  display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:.85rem;color:var(--blue-700);
}
.cat-card .cat-link .ico{width:16px;height:16px;margin:0;transition:transform .15s ease;}
.cat-card:hover .cat-link .ico{transform:translateX(4px);}
.cat-card .cat-tag{
  position:absolute;top:20px;right:20px;font-family:var(--font-mono);font-size:.65rem;
  color:var(--ink-soft);opacity:.55;
}

/* ---------- Product cards ---------- */
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.product-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-m);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .18s ease, box-shadow .18s ease;
}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);}
.product-visual{
  aspect-ratio:4/3;background:
    linear-gradient(135deg, var(--paper-alt), #fff);
  display:flex;align-items:center;justify-content:center;position:relative;
  border-bottom:1px solid var(--line);
}
.product-visual .ico{width:46%;height:46%;color:var(--blue-700);opacity:.85;}
.product-visual::before{
  content:"";position:absolute;inset:12px;border:1px dashed var(--line);border-radius:8px;pointer-events:none;
}
.product-code{
  position:absolute;top:10px;left:10px;font-family:var(--font-mono);font-size:.64rem;
  background:#fff;border:1px solid var(--line);padding:2px 7px;border-radius:5px;color:var(--ink-soft);
}
.product-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:6px;flex:1;}
.product-eyebrow{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.06em;text-transform:uppercase;color:var(--green-600);}
.product-body h3{font-size:1.02rem;margin-bottom:2px;}
.product-body p{font-size:.86rem;margin-bottom:10px;flex:1;}
.product-more{
  display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:.82rem;color:var(--blue-700);
  margin-top:auto;
}
.product-more .ico{width:14px;height:14px;margin:0;transition:transform .15s ease;}
.product-card:hover .product-more .ico{transform:translateX(4px);}
.product-card-link{display:flex;flex-direction:column;height:100%;}

/* ---------- Stat strip ---------- */
.stat-strip{
  background:var(--blue-900);color:#fff;
  padding:40px 0;
}
.stat-strip .wrap{display:flex;flex-wrap:wrap;gap:40px;justify-content:space-between;align-items:center;}
.stat-strip .stat strong{display:block;font-family:var(--font-display);font-size:2rem;}
.stat-strip .stat span{font-size:.78rem;color:#AFC1E5;}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(120deg, var(--green-600), var(--green-500));
  color:#fff;border-radius:var(--radius-l);
  padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band h2{color:#fff;margin-bottom:6px;font-size:1.8rem;}
.cta-band p{color:rgba(255,255,255,.88);margin:0;max-width:44ch;}
.cta-band .btn-primary{background:#fff;color:var(--green-600);}
.cta-band .btn-primary:hover{background:var(--ink);color:#fff;}

/* ---------- Filter bar (produtos.php) ---------- */
.filter-bar{
  display:flex;gap:14px;align-items:center;flex-wrap:wrap;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-m);
  padding:16px 18px;margin-bottom:30px;position:sticky;top:92px;z-index:10;
}
.filter-search{
  display:flex;align-items:center;gap:8px;
  border:1.5px solid var(--line);border-radius:999px;padding:9px 16px;flex:1;min-width:220px;
}
.filter-search .ico{width:16px;height:16px;color:var(--ink-soft);}
.filter-search input{border:none;outline:none;background:none;font:inherit;width:100%;color:var(--ink);}
.filter-tabs{display:flex;gap:8px;flex-wrap:wrap;}
.filter-tab{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.03em;
  padding:8px 14px;border-radius:999px;border:1.5px solid var(--line);color:var(--ink-soft);
  transition:all .15s ease;
}
.filter-tab:hover{border-color:var(--blue-500);color:var(--blue-700);}
.filter-tab.active{background:var(--blue-700);border-color:var(--blue-700);color:#fff;}
.filter-count{font-size:.82rem;color:var(--ink-soft);margin-bottom:20px;}

.empty-state{
  text-align:center;padding:80px 20px;color:var(--ink-soft);
}
.empty-state .ico{width:44px;height:44px;margin:0 auto 16px;color:var(--line);}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;gap:8px;align-items:center;font-size:.82rem;color:var(--ink-soft);
  padding:20px 0;flex-wrap:wrap;
}
.breadcrumb a:hover{color:var(--blue-700);}
.breadcrumb .sep{opacity:.5;}

/* ---------- Product detail ---------- */
.product-detail{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;padding:20px 0 70px;
}
.detail-visual{
  background:linear-gradient(135deg, var(--paper-alt), #fff);
  border:1px solid var(--line);border-radius:var(--radius-l);
  aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;
  position:sticky;top:120px;
}
.detail-visual .ico{width:52%;height:52%;color:var(--blue-700);}
.detail-code{
  font-family:var(--font-mono);font-size:.78rem;color:var(--ink-soft);margin-bottom:10px;
  display:inline-flex;gap:8px;align-items:center;
}
.detail-code .pill{background:var(--paper-alt);border:1px solid var(--line);padding:3px 10px;border-radius:999px;}
.product-detail h1{font-size:clamp(1.7rem,3vw,2.3rem);color:var(--blue-900);margin-bottom:14px;}
.detail-lead{font-size:1.05rem;color:var(--ink);margin-bottom:28px;}

.spec-table{width:100%;border-collapse:collapse;margin-bottom:30px;}
.spec-table tr{border-bottom:1px solid var(--line);}
.spec-table tr:first-child{border-top:1px solid var(--line);}
.spec-table td{padding:13px 0;font-size:.92rem;}
.spec-table td:first-child{color:var(--ink-soft);font-family:var(--font-mono);font-size:.78rem;width:42%;}
.spec-table td:last-child{font-weight:600;}

.options-list{display:flex;flex-direction:column;gap:10px;margin-bottom:32px;}
.options-list li{display:flex;gap:10px;align-items:flex-start;font-size:.92rem;color:var(--ink-soft);}
.options-list .ico{width:16px;height:16px;color:var(--green-600);flex-shrink:0;margin-top:2px;}

.detail-actions{display:flex;gap:12px;flex-wrap:wrap;padding-top:8px;border-top:1px solid var(--line);}

.related-heading{font-size:1.3rem;margin-bottom:22px;}

/* ---------- Catálogos page ---------- */
.catalog-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;}
.catalog-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-l);
  padding:36px;display:flex;flex-direction:column;gap:16px;position:relative;overflow:hidden;
}
.catalog-card::after{
  content:"";position:absolute;right:-30px;top:-30px;width:140px;height:140px;border-radius:50%;
  background:radial-gradient(circle, rgba(11,63,166,.06), transparent 70%);
}
.catalog-card .ico{width:52px;height:52px;color:var(--blue-700);}
.catalog-card h3{font-size:1.35rem;}
.catalog-meta{display:flex;gap:16px;font-size:.8rem;color:var(--ink-soft);font-family:var(--font-mono);}
.catalog-card .btn{align-self:flex-start;}

/* ---------- Empresa / about section ---------- */
.about-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center;}
.about-figures{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.about-figure{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-m);padding:22px;
}
.about-figure strong{display:block;font-family:var(--font-display);font-size:1.7rem;color:var(--blue-900);}
.about-figure span{font-size:.82rem;color:var(--ink-soft);}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#DCE1E6;padding-top:70px;}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:50px;border-bottom:1px solid rgba(255,255,255,.1);}
.footer-brand .brand-mark{color:#fff;}
.footer-brand p{color:#98A2AC;font-size:.88rem;margin:14px 0 18px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.06);
  display:flex;align-items:center;justify-content:center;color:#fff;
}
.footer-social a:hover{background:var(--green-500);}
.footer-heading{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:#7C8892;margin-bottom:14px;}
.footer-col{display:flex;flex-direction:column;gap:10px;font-size:.88rem;}
.footer-col a:hover{color:#fff;}
.footer-contact a,.footer-contact span{display:flex;align-items:center;gap:8px;color:#B9C2CC;}
.footer-bottom{display:flex;justify-content:space-between;padding:22px 0;font-size:.76rem;color:#7C8892;flex-wrap:wrap;gap:8px;}

.whats-float{
  position:fixed;right:22px;bottom:22px;z-index:200;
  width:56px;height:56px;border-radius:50%;background:var(--green-500);color:#fff;
  display:flex;align-items:center;justify-content:center;box-shadow:0 10px 24px rgba(95,163,26,.4);
  transition:transform .15s ease;
}
.whats-float:hover{transform:scale(1.08);}
.whats-float .ico{width:26px;height:26px;}

/* ---------- Utility ---------- */
.mt-0{margin-top:0;}
.text-center{text-align:center;}
.divider-shelf{margin:64px 0;}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .hero-inner{grid-template-columns:1fr;padding-top:52px;}
  .hero-art{max-width:340px;margin:0 auto;order:-1;}
  .cat-grid{grid-template-columns:repeat(2,1fr);}
  .product-grid{grid-template-columns:repeat(3,1fr);}
  .product-detail{grid-template-columns:1fr;}
  .detail-visual{position:static;max-width:420px;margin:0 auto;}
  .about-grid{grid-template-columns:1fr;}
  .catalog-grid{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr 1fr;}
}
@media (max-width:760px){
  .main-nav{
    position:fixed;inset:76px 0 0 0;background:var(--paper);
    flex-direction:column;align-items:flex-start;gap:2px;padding:20px 24px;
    transform:translateX(100%);transition:transform .25s ease;overflow:auto;
  }
  .main-nav.open{transform:translateX(0);}
  .main-nav > a, .nav-drop{width:100%;padding:14px 0;border-bottom:1px solid var(--line);}
  .nav-drop-panel{position:static;transform:none;opacity:1;visibility:visible;box-shadow:none;border:none;padding:10px 0 0;display:none;min-width:0;flex-direction:column;gap:20px;}
  .nav-drop.open .nav-drop-panel{display:flex;}
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .header-cta .btn-sm{display:none;}
  .product-grid{grid-template-columns:repeat(2,1fr);}
  .cat-grid{grid-template-columns:1fr;}
  .about-figures{grid-template-columns:1fr 1fr;}
  .footer-top{grid-template-columns:1fr;}
  .cta-band{padding:36px 26px;flex-direction:column;text-align:center;}
  .filter-bar{position:static;}
}
@media (max-width:520px){
  .product-grid{grid-template-columns:1fr 1fr;}
  .hero-stats{gap:22px;}
}

.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease, transform .6s ease;}
.reveal.is-visible{opacity:1;transform:translateY(0);}

@media (prefers-reduced-motion: reduce){
  *{transition:none !important; scroll-behavior:auto !important;}
}