/* =========================================================================
   OXISA GASES — Design System
   Paleta inspirada nas cores normativas de cilindros de gases (NBR):
   verde para oxigênio medicinal, azul petróleo/marinho para a marca,
   com base neutra em branco/cinza-claro para transmitir limpeza e precisão.
   ========================================================================= */

:root{
  /* Cor */
  --navy-900:#071B30;
  --navy-800:#0B2540;
  --navy-700:#123457;
  --teal-700:#0E5C63;
  --teal-500:#187E82;
  --green-500:#4FA637;
  --green-400:#6CC24A;
  --green-300:#9BDD7C;
  --ink:#182634;
  --ink-soft:#4C5C6C;
  --line:#E1E8ED;
  --bg:#FFFFFF;
  --bg-soft:#F5F8F9;
  --bg-navy-soft:#0E2C4B;
  --white:#FFFFFF;
  --danger:#C0392B;

  /* Tipografia */
  --font-display: 'Segoe UI Semibold','Segoe UI',-apple-system,BlinkMacSystemFont,'Helvetica Neue',Arial,sans-serif;
  --font-body: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;

  /* Escala */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(7,27,48,.06), 0 1px 1px rgba(7,27,48,.04);
  --shadow-md: 0 8px 24px -8px rgba(7,27,48,.18);
  --shadow-lg: 0 20px 48px -16px rgba(7,27,48,.28);
  --container: 1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family:var(--font-display); margin:0; color:var(--navy-900); line-height:1.15; }
p{ margin:0 0 1em; }
button{ font-family:inherit; }

:focus-visible{
  outline:3px solid var(--green-400);
  outline-offset:2px;
}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001ms !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}

/* -------------------------------------------------------------------------
   Utilitários / tipografia
   ------------------------------------------------------------------------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.8rem;
  font-weight:600;
  color:var(--teal-700);
  letter-spacing:.02em;
  margin-bottom:14px;
}
.eyebrow::before{
  content:'';
  width:22px;
  height:2px;
  background:var(--green-500);
  display:inline-block;
  border-radius:2px;
}
.section-title{
  font-size:clamp(1.6rem, 1.2rem + 1.6vw, 2.35rem);
  font-weight:700;
  letter-spacing:-.01em;
  max-width:640px;
}
.section-desc{
  color:var(--ink-soft);
  max-width:560px;
  font-size:1.02rem;
  margin-top:14px;
}
.section-head{ margin-bottom:44px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head.center .section-title,
.section-head.center .section-desc{ margin-left:auto; margin-right:auto; }

section{ padding:76px 0; }
.section-soft{ background:var(--bg-soft); }
.section-navy{ background:var(--navy-800); color:#EAF1F6; }
.section-navy h2, .section-navy h3{ color:#fff; }

/* -------------------------------------------------------------------------
   Botões
   ------------------------------------------------------------------------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  padding:13px 26px;
  border-radius:999px;
  font-weight:600;
  font-size:.96rem;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .15s ease, box-shadow .15s ease, background-color .15s ease, border-color .15s ease, color .15s ease;
  white-space:nowrap;
}
.btn:hover{ transform:translateY(-1px); }
.btn-primary{
  background:var(--navy-800);
  color:#fff;
  box-shadow:var(--shadow-sm);
}
.btn-primary:hover{ background:var(--navy-700); box-shadow:var(--shadow-md); }
.btn-whats{
  background:var(--green-500);
  color:#fff;
}
.btn-whats:hover{ background:#458f2f; box-shadow:var(--shadow-md); }
.btn-outline{
  background:transparent;
  border-color:rgba(255,255,255,.5);
  color:inherit;
}
.btn-outline:hover{ background:rgba(255,255,255,.12); }
.btn-outline-navy{
  background:transparent;
  border-color:var(--navy-800);
  color:var(--navy-800);
}
.btn-outline-navy:hover{ background:var(--navy-800); color:#fff; }
.btn-block{ width:100%; }
.btn-lg{ padding:16px 30px; font-size:1.02rem; }
.btn svg,.btn i{ width:1em; height:1em; }

/* -------------------------------------------------------------------------
   Cabeçalho
   ------------------------------------------------------------------------- */
.topbar{
  background:var(--navy-900);
  color:#CFE0EA;
  font-size:.82rem;
}
.topbar .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:8px;
  padding-bottom:8px;
  gap:16px;
  flex-wrap:wrap;
}
.topbar-info{ display:flex; gap:22px; flex-wrap:wrap; }
.topbar-info span{ display:inline-flex; align-items:center; gap:7px; }
.topbar-info i{ color:var(--green-400); }
.topbar a:hover{ color:#fff; }

.site-header{
  background:#fff;
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:60;
}
.site-header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:14px;
  padding-bottom:14px;
  gap:20px;
}
.brand{ display:flex; align-items:center; gap:11px; }
.brand-mark{
  width:42px; height:42px;
  border-radius:11px;
  background:linear-gradient(160deg, var(--teal-700), var(--navy-800));
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
}
.brand-mark svg{ width:24px; height:24px; }
.brand-text{ line-height:1.15; }
.brand-text strong{
  display:block;
  font-family:var(--font-display);
  font-weight:700;
  font-size:1.18rem;
  color:var(--navy-900);
  letter-spacing:-.01em;
}
.brand-text span{
  display:block;
  font-size:.72rem;
  color:var(--teal-700);
  font-weight:600;
  letter-spacing:.03em;
}

.main-nav{ display:flex; align-items:center; gap:2px; flex-shrink:0; }
.main-nav a{
  padding:10px 12px;
  border-radius:999px;
  font-weight:600;
  font-size:.87rem;
  color:var(--ink);
  white-space:nowrap;
  transition:background .15s ease, color .15s ease;
}
.main-nav a:hover, .main-nav a.active{ background:var(--bg-soft); color:var(--navy-900); }

.header-actions{ display:flex; align-items:center; gap:10px; }
.nav-toggle{
  display:none;
  background:none;
  border:1px solid var(--line);
  border-radius:10px;
  width:44px; height:44px;
  align-items:center; justify-content:center;
  cursor:pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:''; display:block; width:20px; height:2px; background:var(--navy-900);
  position:relative; transition:.2s;
}
.nav-toggle span::before{ position:absolute; top:-6px; }
.nav-toggle span::after{ position:absolute; top:6px; }

@media (max-width: 960px){
  .main-nav{
    position:absolute; top:100%; left:0; right:0;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    padding:10px 16px 18px;
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-md);
    display:none;
  }
  .main-nav.open{ display:flex; }
  .main-nav a{ padding:12px 14px; }
  .nav-toggle{ display:flex; flex-shrink:0; }
  .header-actions{ gap:8px; }
  .header-actions .btn-lg{ padding:10px 16px; font-size:.86rem; }
  .topbar-info span:nth-child(2){ display:none; }
}

@media (max-width: 620px){
  .site-header .container{ gap:10px; }
  .brand-mark{ width:36px; height:36px; }
  .brand-mark svg{ width:20px; height:20px; }
  .brand-text strong{ font-size:1.02rem; }
  .brand-text span{ display:none; }
  .header-actions .btn-lg span{ display:none; }
  .header-actions .btn-lg{
    padding:0; width:44px; height:44px; border-radius:50%; flex-shrink:0;
  }
  .header-actions .btn-lg i{ font-size:1.1rem; }
  .nav-toggle{ width:40px; height:40px; }
}

@media (max-width: 400px){
  .brand-text strong{ font-size:.92rem; }
  .topbar .container{ gap:8px; }
  .topbar-info{ gap:10px; }
}

/* -------------------------------------------------------------------------
   Hero
   ------------------------------------------------------------------------- */
.hero{
  position:relative;
  background:var(--navy-900);
  color:#fff;
  overflow:hidden;
  padding:0;
}
.hero-grid{
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:44px 44px;
  mask-image:linear-gradient(180deg, rgba(0,0,0,.9), transparent 85%);
  -webkit-mask-image:linear-gradient(180deg, rgba(0,0,0,.9), transparent 85%);
}
.hero-glow{
  position:absolute;
  width:640px; height:640px;
  right:-180px; top:-160px;
  background:radial-gradient(circle, rgba(108,194,74,.28), transparent 65%);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  align-items:center;
  gap:40px;
  padding:88px 0 76px;
}
.hero-eyebrow{
  display:inline-flex; align-items:center; gap:9px;
  background:rgba(108,194,74,.14);
  border:1px solid rgba(108,194,74,.35);
  color:var(--green-300);
  padding:7px 14px;
  border-radius:999px;
  font-size:.8rem;
  font-weight:600;
  margin-bottom:22px;
}
.hero-eyebrow i{ color:var(--green-400); }
.hero h1{
  color:#fff;
  font-size:clamp(2.1rem, 1.5rem + 2.6vw, 3.15rem);
  font-weight:700;
  letter-spacing:-.02em;
  max-width:620px;
}
.hero h1 em{
  font-style:normal;
  color:var(--green-400);
}
.hero p.lead{
  color:#C6D5E0;
  font-size:1.12rem;
  max-width:520px;
  margin-top:20px;
}
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; margin-top:34px; }
.hero-stats{
  display:flex;
  gap:34px;
  margin-top:52px;
  flex-wrap:wrap;
}
.hero-stats div strong{
  display:block;
  font-family:var(--font-display);
  font-size:1.7rem;
  font-weight:700;
  color:#fff;
}
.hero-stats div span{
  font-size:.82rem;
  color:#9FB3C2;
}

.hero-art{ position:relative; display:flex; justify-content:center; }
.hero-art svg{ width:100%; max-width:420px; height:auto; }
.hero-photo{
  width:100%;
  max-width:420px;
  aspect-ratio:3/4;
  object-fit:cover;
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);
  border:1px solid rgba(255,255,255,.12);
}
.hero-badge{
  position:absolute;
  bottom:8%;
  left:4%;
  background:rgba(11,37,64,.85);
  backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-md);
  padding:14px 16px;
  display:flex;
  align-items:center;
  gap:12px;
  box-shadow:var(--shadow-lg);
}
.hero-badge .dot{
  width:10px; height:10px; border-radius:50%;
  background:var(--green-400);
  box-shadow:0 0 0 4px rgba(108,194,74,.25);
}
.hero-badge strong{ display:block; font-size:.86rem; color:#fff; }
.hero-badge span{ display:block; font-size:.74rem; color:#9FB3C2; }

@media (max-width: 900px){
  .hero-inner{ grid-template-columns:1fr; padding-top:44px; padding-bottom:56px; }
  .hero-art{ order:-1; margin-bottom:8px; }
  .hero-art svg{ max-width:280px; }
  .hero-stats{ gap:26px; }
}

/* -------------------------------------------------------------------------
   Faixa de confiança
   ------------------------------------------------------------------------- */
.trust-strip{
  background:var(--bg-soft);
  border-bottom:1px solid var(--line);
  padding:20px 0;
}
.trust-strip .container{
  display:flex;
  flex-wrap:wrap;
  gap:24px;
  justify-content:space-between;
}
.trust-item{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:.88rem;
  color:var(--ink-soft);
  font-weight:600;
}
.trust-item i{
  width:38px; height:38px;
  border-radius:10px;
  background:#fff;
  border:1px solid var(--line);
  display:flex; align-items:center; justify-content:center;
  color:var(--teal-700);
  flex-shrink:0;
}

/* -------------------------------------------------------------------------
   Sobre
   ------------------------------------------------------------------------- */
.about-grid{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:56px;
  align-items:center;
}
.about-timeline{
  border-left:2px solid var(--line);
  padding-left:26px;
  display:flex;
  flex-direction:column;
  gap:26px;
}
.about-timeline .item{ position:relative; }
.about-timeline .item::before{
  content:'';
  position:absolute;
  left:-32px; top:4px;
  width:12px; height:12px;
  border-radius:50%;
  background:var(--green-500);
  box-shadow:0 0 0 4px #fff, 0 0 0 5px var(--line);
}
.about-timeline .item strong{ display:block; color:var(--navy-900); font-size:1.02rem; }
.about-timeline .item span{ color:var(--ink-soft); font-size:.92rem; }

.about-copy p{ color:var(--ink-soft); font-size:1.03rem; }
.about-badges{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  margin-top:28px;
}
.about-badge{
  background:var(--bg-soft);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:16px 20px;
  flex:1;
  min-width:170px;
}
.about-badge strong{ display:block; font-size:1.5rem; color:var(--navy-900); font-family:var(--font-display); }
.about-badge span{ font-size:.84rem; color:var(--ink-soft); }

@media (max-width: 860px){
  .about-grid{ grid-template-columns:1fr; gap:34px; }
}

/* -------------------------------------------------------------------------
   Cards de categorias / produtos
   ------------------------------------------------------------------------- */
.cards-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(250px, 1fr));
  gap:22px;
}
.cat-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:26px 22px;
  transition:box-shadow .18s ease, transform .18s ease, border-color .18s ease;
  display:flex;
  flex-direction:column;
  gap:12px;
  height:100%;
}
.cat-card:hover{ box-shadow:var(--shadow-md); transform:translateY(-3px); border-color:transparent; }
.cat-card .icon{
  width:48px; height:48px;
  border-radius:12px;
  display:flex; align-items:center; justify-content:center;
  background:rgba(24,126,130,.1);
  color:var(--teal-700);
}
.cat-card.type-industrial .icon{ background:rgba(11,37,64,.08); color:var(--navy-800); }
.cat-card.type-equipamento .icon{ background:rgba(108,194,74,.14); color:var(--green-500); }
.cat-card h3{ font-size:1.06rem; }
.cat-card p{ color:var(--ink-soft); font-size:.9rem; margin-bottom:0; flex-grow:1; }
.cat-card .cat-link{
  font-weight:600;
  font-size:.86rem;
  color:var(--teal-700);
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:6px;
}
.cat-card .cat-link i{ transition:transform .15s ease; }
.cat-card:hover .cat-link i{ transform:translateX(3px); }

.section-foot{ margin-top:40px; text-align:center; }

/* Product cards */
.product-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(265px, 1fr));
  gap:24px;
}
.product-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:box-shadow .18s ease, transform .18s ease;
}
.product-card:hover{ box-shadow:var(--shadow-md); transform:translateY(-3px); }
.product-media{
  position:relative;
  aspect-ratio:4/3;
  background:var(--bg-soft);
  display:flex; align-items:center; justify-content:center;
  overflow:hidden;
}
.product-media img{ width:100%; height:100%; object-fit:contain; padding:14px; }
.product-tag{
  position:absolute; top:12px; left:12px;
  background:var(--navy-900);
  color:#fff;
  font-size:.7rem;
  font-weight:700;
  letter-spacing:.02em;
  padding:5px 10px;
  border-radius:999px;
}
.product-tag.tag-industrial{ background:var(--teal-700); }
.product-tag.tag-equipamento{ background:var(--green-500); }
.product-featured{
  position:absolute; top:12px; right:12px;
  background:#fff;
  color:var(--navy-900);
  font-size:.68rem;
  font-weight:700;
  padding:5px 9px;
  border-radius:999px;
  box-shadow:var(--shadow-sm);
}
.product-body{
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:8px;
  flex-grow:1;
}
.product-cat{ font-size:.76rem; font-weight:700; color:var(--teal-700); letter-spacing:.02em; }
.product-body h3{ font-size:1.02rem; line-height:1.3; }
.product-body p{ color:var(--ink-soft); font-size:.87rem; margin-bottom:0; flex-grow:1; }
.product-meta{ display:flex; gap:14px; flex-wrap:wrap; font-size:.78rem; color:var(--ink-soft); }
.product-meta span{ display:flex; align-items:center; gap:5px; }
.product-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-top:6px;
  padding-top:14px;
  border-top:1px dashed var(--line);
}
.product-price{ font-weight:700; color:var(--navy-900); font-size:1.02rem; }
.product-price.consult{ color:var(--teal-700); font-size:.92rem; }
.product-foot .btn{ padding:9px 16px; font-size:.83rem; }
.empty-state{
  text-align:center;
  padding:60px 20px;
  color:var(--ink-soft);
  border:1px dashed var(--line);
  border-radius:var(--radius-md);
  background:var(--bg-soft);
}
.empty-state i{ font-size:2.2rem; color:var(--teal-700); margin-bottom:14px; display:block; }

/* -------------------------------------------------------------------------
   Filtros do catálogo
   ------------------------------------------------------------------------- */
.filter-bar{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:18px;
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  align-items:flex-end;
  margin-bottom:34px;
  box-shadow:var(--shadow-sm);
}
.filter-field{ display:flex; flex-direction:column; gap:6px; flex:1; min-width:170px; }
.filter-field label{ font-size:.78rem; font-weight:700; color:var(--ink-soft); text-transform:none; }
.filter-field input, .filter-field select{
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:11px 12px;
  font-size:.92rem;
  font-family:inherit;
  background:#fff;
  color:var(--ink);
}
.filter-field input:focus, .filter-field select:focus{ border-color:var(--teal-700); outline:none; }
.filter-bar .btn{ padding:11px 20px; }

/* -------------------------------------------------------------------------
   Página de produto individual
   ------------------------------------------------------------------------- */
.breadcrumb{ font-size:.84rem; color:var(--ink-soft); margin-bottom:22px; display:flex; gap:8px; flex-wrap:wrap; }
.breadcrumb a:hover{ color:var(--teal-700); }
.breadcrumb span{ color:#B7C3CC; }

.product-detail{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:48px;
  align-items:flex-start;
}
.product-detail-media{
  background:var(--bg-soft);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  aspect-ratio:1/1;
  display:flex; align-items:center; justify-content:center;
  overflow:hidden;
  position:sticky;
  top:100px;
}
.product-detail-media img{ width:100%; height:100%; object-fit:contain; padding:36px; }
.product-detail-info h1{ font-size:1.9rem; margin-bottom:8px; }
.pd-code{ color:var(--ink-soft); font-size:.9rem; margin-bottom:18px; }
.pd-specs{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(140px,1fr));
  gap:14px;
  margin:24px 0;
}
.pd-spec{
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:12px 14px;
  background:#fff;
}
.pd-spec span{ display:block; font-size:.72rem; color:var(--ink-soft); font-weight:700; margin-bottom:4px; }
.pd-spec strong{ font-size:.96rem; color:var(--navy-900); }
.pd-price-box{
  background:var(--bg-soft);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:22px;
  margin:26px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.pd-price-box .price{ font-size:1.6rem; font-weight:700; color:var(--navy-900); font-family:var(--font-display); }
.pd-price-box .price.consult{ font-size:1.1rem; color:var(--teal-700); }
.pd-desc{ color:var(--ink-soft); line-height:1.75; }
.pd-desc h2, .pd-desc h3{ margin-top:22px; margin-bottom:10px; font-size:1.1rem; }

@media (max-width: 860px){
  .product-detail{ grid-template-columns:1fr; gap:28px; }
  .product-detail-media{ position:static; }
}

/* -------------------------------------------------------------------------
   CTA WhatsApp de seção
   ------------------------------------------------------------------------- */
.cta-band{
  background:linear-gradient(120deg, var(--teal-700), var(--navy-800));
  border-radius:var(--radius-lg);
  padding:44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  color:#fff;
}
.cta-band h3{ color:#fff; font-size:1.5rem; max-width:460px; }
.cta-band p{ color:#D6E6EA; margin-bottom:0; max-width:460px; }

/* -------------------------------------------------------------------------
   Contato
   ------------------------------------------------------------------------- */
.contact-grid{
  display:grid;
  grid-template-columns:.85fr 1.15fr;
  gap:40px;
  align-items:stretch;
}
.contact-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:34px;
  box-shadow:var(--shadow-sm);
}
.contact-row{
  display:flex;
  gap:14px;
  padding:16px 0;
  border-bottom:1px solid var(--line);
}
.contact-row:last-child{ border-bottom:none; padding-bottom:0; }
.contact-row:first-child{ padding-top:0; }
.contact-row i{
  width:40px; height:40px;
  border-radius:10px;
  background:var(--bg-soft);
  color:var(--teal-700);
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
}
.contact-row strong{ display:block; font-size:.92rem; color:var(--navy-900); }
.contact-row span{ font-size:.9rem; color:var(--ink-soft); }
.map-frame{
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  min-height:340px;
  height:100%;
}
.map-frame iframe{ width:100%; height:100%; min-height:340px; border:0; display:block; }

/* -------------------------------------------------------------------------
   Rodapé
   ------------------------------------------------------------------------- */
.site-footer{ background:var(--navy-900); color:#B9CAD6; padding-top:64px; }
.footer-grid{
  display:grid;
  grid-template-columns:1.3fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand .brand-text strong{ color:#fff; }
.footer-brand p{ color:#93A7B7; font-size:.9rem; margin-top:14px; max-width:280px; }
.footer-social{ display:flex; gap:10px; margin-top:18px; }
.footer-social a{
  width:36px; height:36px;
  border-radius:9px;
  background:rgba(255,255,255,.06);
  display:flex; align-items:center; justify-content:center;
  transition:background .15s ease;
}
.footer-social a:hover{ background:var(--green-500); }
.footer-col h4{ color:#fff; font-size:.86rem; margin-bottom:16px; letter-spacing:.02em; }
.footer-col ul{ display:flex; flex-direction:column; gap:10px; }
.footer-col a{ font-size:.88rem; color:#B9CAD6; }
.footer-col a:hover{ color:var(--green-400); }
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:14px;
  padding:22px 0;
  font-size:.82rem;
  color:#7C93A3;
  flex-wrap:wrap;
}

@media (max-width: 860px){
  .footer-grid{ grid-template-columns:1fr 1fr; }
}
@media (max-width: 560px){
  .footer-grid{ grid-template-columns:1fr; }
  .contact-grid{ grid-template-columns:1fr; }
}

/* -------------------------------------------------------------------------
   Botão flutuante WhatsApp
   ------------------------------------------------------------------------- */
.whats-float{
  position:fixed;
  bottom:24px;
  right:24px;
  width:60px; height:60px;
  border-radius:50%;
  background:var(--green-500);
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 10px 24px -6px rgba(79,166,55,.55);
  z-index:80;
  transition:transform .15s ease;
}
.whats-float:hover{ transform:scale(1.06); }
.whats-float svg{ width:30px; height:30px; fill:#fff; }

/* -------------------------------------------------------------------------
   Página interna genérica (sobre, contato — cabeçalhos de página)
   ------------------------------------------------------------------------- */
.page-header{
  background:var(--navy-900);
  color:#fff;
  padding:56px 0 46px;
  position:relative;
  overflow:hidden;
}
.page-header .container{ position:relative; }
.page-header h1{ color:#fff; font-size:clamp(1.8rem, 1.4rem + 1.6vw, 2.4rem); }
.page-header p{ color:#B9CAD6; margin-top:12px; max-width:560px; }

/* -------------------------------------------------------------------------
   Página 404
   ------------------------------------------------------------------------- */
.error-page{ text-align:center; padding:100px 20px; }
.error-page .code{ font-size:5rem; font-weight:700; color:var(--navy-900); font-family:var(--font-display); }

/* Skip link acessibilidade */
.skip-link{
  position:absolute; left:-9999px; top:auto;
  background:var(--navy-900); color:#fff; padding:12px 18px; border-radius:8px; z-index:999;
}
.skip-link:focus{ left:16px; top:16px; }