/* ============================================================
   NEUTRON GERADORES - CSS Principal
   Identidade Visual: Navy Blue #0A2463 | Chrome Gray #8B9197
   Graphite #2B2D32 | White #FFFFFF
   ============================================================ */

/* ---- RESET & BASE ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy: #0A2463;
  --navy-dark: #071A48;
  --navy-light: #1A3A7A;
  --chrome: #8B9197;
  --chrome-light: #B0B5BB;
  --chrome-dark: #6B7177;
  --graphite: #2B2D32;
  --graphite-light: #3D4047;
  --white: #FFFFFF;
  --off-white: #F5F6F8;
  --border: #E2E5EA;
  --success: #198754;
  --warning: #FFC107;
  --danger: #DC3545;
  --info: #0dcaf0;
  --shadow-sm: 0 2px 8px rgba(0,0,0,.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,.12);
  --shadow-lg: 0 8px 40px rgba(0,0,0,.16);
  --radius: 6px;
  --radius-lg: 12px;
  --transition: all .25s ease;
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.6;
  color: var(--graphite);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; }
a { color: var(--navy); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--navy-light); }

/* ---- TIPOGRAFIA ---- */
h1,h2,h3,h4,h5,h6 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--graphite);
}
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.2rem; }

.text-navy { color: var(--navy); }
.text-chrome { color: var(--chrome); }
.text-graphite { color: var(--graphite); }
.text-white { color: var(--white); }
.text-muted { color: var(--chrome); }

/* ---- CONTAINER ---- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.container-fluid { width: 100%; padding: 0 24px; }

/* ---- BOTÕES ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border: 2px solid transparent;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}
.btn-primary:hover {
  background: var(--navy-dark);
  border-color: var(--navy-dark);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-secondary {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-secondary:hover {
  background: var(--navy);
  color: var(--white);
  transform: translateY(-1px);
}
.btn-chrome {
  background: var(--chrome);
  color: var(--white);
  border-color: var(--chrome);
}
.btn-chrome:hover {
  background: var(--chrome-dark);
  border-color: var(--chrome-dark);
  color: var(--white);
}
.btn-danger {
  background: var(--danger);
  color: var(--white);
  border-color: var(--danger);
}
.btn-danger:hover { opacity: 0.9; }
.btn-sm { padding: 8px 18px; font-size: 0.82rem; }
.btn-lg { padding: 16px 36px; font-size: 1rem; }
.btn-block { width: 100%; justify-content: center; }

/* ---- FORMULÁRIOS ---- */
.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--graphite);
  margin-bottom: 6px;
}
.form-control {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--graphite);
  background: var(--white);
  transition: var(--transition);
  font-family: var(--font-main);
}
.form-control:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(10,36,99,.12);
}
.form-control::placeholder { color: var(--chrome-light); }
textarea.form-control { resize: vertical; min-height: 100px; }
select.form-control { cursor: pointer; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-row.col-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-text { font-size: 0.8rem; color: var(--chrome); margin-top: 4px; }

/* ---- ALERTS ---- */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-size: 0.9rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.alert-success { background: #d1e7dd; color: #0f5132; border-left: 4px solid var(--success); }
.alert-danger  { background: #f8d7da; color: #842029; border-left: 4px solid var(--danger); }
.alert-warning { background: #fff3cd; color: #664d03; border-left: 4px solid var(--warning); }
.alert-info    { background: #cff4fc; color: #055160; border-left: 4px solid var(--info); }

/* ---- HEADER ---- */
#site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}
.header-top {
  background: var(--graphite);
  color: var(--chrome-light);
  font-size: 0.8rem;
  padding: 6px 0;
}
.header-top .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.header-top a { color: var(--chrome-light); }
.header-top a:hover { color: var(--white); }
.header-top-contact { display: flex; gap: 20px; align-items: center; }
.header-top-social { display: flex; gap: 12px; }
.header-main .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  gap: 24px;
}
.header-logo img { height: 48px; width: auto; }
.header-logo-text {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.5px;
}
.header-logo-text span { color: var(--chrome); }
.header-search { flex: 1; max-width: 400px; position: relative; }
.header-search input {
  width: 100%;
  padding: 10px 44px 10px 16px;
  border: 1.5px solid var(--border);
  border-radius: 100px;
  font-size: 0.875rem;
  background: var(--off-white);
}
.header-search input:focus {
  border-color: var(--navy);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(10,36,99,.10);
  outline: none;
}
.header-search-btn {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--chrome);
  cursor: pointer;
  font-size: 1rem;
}
.header-actions { display: flex; align-items: center; gap: 16px; }
.header-cart {
  position: relative;
  color: var(--graphite);
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px;
}
.header-cart:hover { color: var(--navy); }
.cart-badge {
  position: absolute;
  top: 0;
  right: 0;
  background: var(--danger);
  color: var(--white);
  font-size: 0.65rem;
  font-weight: 700;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---- NAVEGAÇÃO ---- */
#site-nav {
  background: var(--navy);
  border-bottom: 3px solid rgba(255,255,255,.1);
}
#site-nav .container { display: flex; align-items: center; }
.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-menu > li > a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 14px 20px;
  color: rgba(255,255,255,.85);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.3px;
  transition: var(--transition);
  border-bottom: 3px solid transparent;
  margin-bottom: -3px;
}
.nav-menu > li > a:hover,
.nav-menu > li > a.ativo {
  color: var(--white);
  background: rgba(255,255,255,.08);
  border-bottom-color: var(--chrome-light);
}
.nav-menu > li.has-dropdown { position: relative; }
.nav-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--white);
  min-width: 220px;
  box-shadow: var(--shadow-lg);
  border-radius: 0 0 var(--radius) var(--radius);
  border-top: 3px solid var(--navy);
  z-index: 100;
  list-style: none;
  padding: 8px 0;
}
.nav-menu > li.has-dropdown:hover .nav-dropdown { display: block; }
.nav-dropdown a {
  display: block;
  padding: 10px 20px;
  color: var(--graphite);
  font-size: 0.875rem;
}
.nav-dropdown a:hover { background: var(--off-white); color: var(--navy); padding-left: 24px; }

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 14px 20px;
}

/* ---- HERO ---- */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--graphite) 100%);
  color: var(--white);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cdefs%3E%3Cpattern id='g' width='60' height='60' patternUnits='userSpaceOnUse'%3E%3Cpath d='M 60 0 L 0 0 0 60' fill='none' stroke='rgba(255,255,255,.04)' stroke-width='1'/%3E%3C/pattern%3E%3C/defs%3E%3Crect width='60' height='60' fill='url(%23g)'/%3E%3C/svg%3E");
  opacity: 0.5;
}
.hero-content { position: relative; z-index: 1; }
.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,.15);
  color: var(--chrome-light);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 20px;
  border: 1px solid rgba(255,255,255,.2);
}
.hero h1 { color: var(--white); margin-bottom: 16px; }
.hero p { font-size: 1.1rem; color: rgba(255,255,255,.75); max-width: 560px; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,.15);
}
.hero-stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
}
.hero-stat-label { font-size: 0.8rem; color: rgba(255,255,255,.6); margin-top: 4px; }

/* ---- SEÇÃO GERAL ---- */
section { padding: 80px 0; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block;
  background: rgba(10,36,99,.08);
  color: var(--navy);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 12px;
}
.section-header h2 { margin-bottom: 12px; }
.section-header p { color: var(--chrome); max-width: 560px; margin: 0 auto; }
.section-bg { background: var(--off-white); }
.section-dark { background: var(--graphite); color: var(--white); }
.section-dark h2, .section-dark h3 { color: var(--white); }
.section-dark p { color: rgba(255,255,255,.7); }

/* ---- CARDS ---- */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.card-img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  background: var(--off-white);
}
.card-body { padding: 20px; }
.card-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.card-text { font-size: 0.875rem; color: var(--chrome); line-height: 1.5; }
.card-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

/* ---- PRODUTO CARD ---- */
.produto-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}
.produto-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.produto-card-img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  background: var(--off-white);
}
.produto-card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--navy);
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.produto-card-body { padding: 20px; }
.produto-card-marca { font-size: 0.75rem; color: var(--chrome); font-weight: 600; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; }
.produto-card-title { font-size: 1rem; font-weight: 700; color: var(--graphite); margin-bottom: 12px; }
.produto-card-specs {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.produto-card-spec {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.78rem;
  color: var(--chrome);
  background: var(--off-white);
  padding: 4px 10px;
  border-radius: 100px;
}
.produto-card-spec i { color: var(--navy); }
.produto-card-preco { font-size: 1.4rem; font-weight: 800; color: var(--navy); }
.produto-card-preco small { font-size: 0.75rem; font-weight: 400; color: var(--chrome); }
.produto-card-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 10px;
}
.produto-card-footer .btn { flex: 1; }

/* ---- GRID ---- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---- BADGES ---- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}
.badge-primary { background: rgba(10,36,99,.1); color: var(--navy); }
.badge-success { background: #d1e7dd; color: #0f5132; }
.badge-warning { background: #fff3cd; color: #856404; }
.badge-danger  { background: #f8d7da; color: #842029; }
.badge-chrome  { background: rgba(139,145,151,.12); color: var(--chrome-dark); }
.badge-graphite{ background: rgba(43,45,50,.1); color: var(--graphite); }

/* ---- PAGINAÇÃO ---- */
.pagination {
  display: flex;
  align-items: center;
  gap: 6px;
  justify-content: center;
  margin-top: 40px;
}
.pagination a, .pagination span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid var(--border);
  color: var(--graphite);
  transition: var(--transition);
}
.pagination a:hover { background: var(--navy); color: var(--white); border-color: var(--navy); }
.pagination .ativo { background: var(--navy); color: var(--white); border-color: var(--navy); }

/* ---- BREADCRUMB ---- */
.breadcrumb {
  background: var(--off-white);
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  font-size: 0.85rem;
}
.breadcrumb-list li { display: flex; align-items: center; gap: 8px; color: var(--chrome); }
.breadcrumb-list li:last-child { color: var(--graphite); font-weight: 600; }
.breadcrumb-list a { color: var(--chrome); }
.breadcrumb-list a:hover { color: var(--navy); }
.breadcrumb-list li + li::before { content: '/'; color: var(--chrome-light); }

/* ---- FILTROS ---- */
.filtros-bar {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 32px;
}
.filtros-bar form { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; }
.filtros-bar .form-group { margin-bottom: 0; flex: 1; min-width: 160px; }
.filtros-bar .btn { flex-shrink: 0; }

/* ---- DEPOIMENTOS ---- */
.depoimento-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: relative;
}
.depoimento-quote {
  font-size: 3rem;
  line-height: 1;
  color: var(--navy);
  opacity: 0.2;
  font-family: Georgia, serif;
  position: absolute;
  top: 16px;
  left: 24px;
}
.depoimento-texto { font-style: italic; color: var(--chrome-dark); margin-bottom: 20px; padding-top: 20px; }
.depoimento-autor { display: flex; align-items: center; gap: 12px; }
.depoimento-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.depoimento-nome { font-weight: 700; color: var(--graphite); font-size: 0.9rem; }
.depoimento-cargo { font-size: 0.8rem; color: var(--chrome); }
.estrelas { color: var(--warning); font-size: 0.8rem; }

/* ---- FOOTER ---- */
#site-footer {
  background: var(--graphite);
  color: rgba(255,255,255,.7);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand h3 { color: var(--white); font-size: 1.3rem; margin-bottom: 12px; }
.footer-brand p { font-size: 0.875rem; line-height: 1.7; margin-bottom: 20px; }
.footer-logo { height: 44px; width: auto; margin-bottom: 16px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.7);
  transition: var(--transition);
  font-size: 0.875rem;
}
.footer-social a:hover { background: var(--navy); color: var(--white); }
.footer-col h4 { color: var(--white); font-size: 0.9rem; font-weight: 700; letter-spacing: 0.5px; margin-bottom: 16px; text-transform: uppercase; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 0.875rem; color: rgba(255,255,255,.6); }
.footer-col ul li a:hover { color: var(--white); padding-left: 4px; }
.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  margin-bottom: 12px;
}
.footer-contact li i { color: var(--chrome); margin-top: 3px; flex-shrink: 0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
}

/* ---- WHATSAPP FLOAT ---- */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 9999;
  background: #25D366;
  color: var(--white);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  box-shadow: 0 4px 20px rgba(37,211,102,.4);
  transition: var(--transition);
  animation: pulse-whatsapp 2s infinite;
}
.whatsapp-float:hover {
  transform: scale(1.1);
  color: var(--white);
  box-shadow: 0 6px 28px rgba(37,211,102,.5);
}
@keyframes pulse-whatsapp {
  0%, 100% { box-shadow: 0 4px 20px rgba(37,211,102,.4); }
  50% { box-shadow: 0 4px 32px rgba(37,211,102,.6); }
}

/* ---- TABELA ---- */
.table-responsive { overflow-x: auto; border-radius: var(--radius-lg); }
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.table th, .table td {
  padding: 13px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.table th {
  background: var(--off-white);
  font-weight: 700;
  color: var(--graphite);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.table tr:hover td { background: rgba(10,36,99,.03); }
.table td { color: var(--graphite); vertical-align: middle; }

/* ---- CARRINHO ---- */
.carrinho-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.carrinho-item-img {
  width: 80px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--off-white);
  flex-shrink: 0;
}
.carrinho-item-info { flex: 1; }
.carrinho-item-nome { font-weight: 700; color: var(--graphite); margin-bottom: 4px; }
.carrinho-item-detalhe { font-size: 0.82rem; color: var(--chrome); }
.carrinho-qty { display: flex; align-items: center; gap: 8px; }
.carrinho-qty-btn {
  width: 30px;
  height: 30px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.carrinho-qty-btn:hover { background: var(--navy); color: var(--white); border-color: var(--navy); }
.carrinho-qty-num { min-width: 32px; text-align: center; font-weight: 700; }

/* ---- CHECKOUT STEPS ---- */
.checkout-steps {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: 40px;
}
.checkout-step {
  flex: 1;
  text-align: center;
  position: relative;
  padding: 12px;
}
.checkout-step::after {
  content: '';
  position: absolute;
  top: 22px;
  right: -50%;
  width: 100%;
  height: 2px;
  background: var(--border);
  z-index: 0;
}
.checkout-step:last-child::after { display: none; }
.checkout-step.ativo::after { background: var(--navy); }
.checkout-step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--border);
  color: var(--chrome);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin: 0 auto 6px;
  position: relative;
  z-index: 1;
  transition: var(--transition);
}
.checkout-step.ativo .checkout-step-num { background: var(--navy); color: var(--white); }
.checkout-step.completo .checkout-step-num { background: var(--success); color: var(--white); }
.checkout-step-label { font-size: 0.78rem; color: var(--chrome); font-weight: 600; }
.checkout-step.ativo .checkout-step-label { color: var(--navy); }

/* ---- UTILITÁRIOS ---- */
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.mt-24 { margin-top: 24px; }
.mb-24 { margin-bottom: 24px; }
.mt-40 { margin-top: 40px; }
.mb-40 { margin-bottom: 40px; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.fw-700 { font-weight: 700; }
.w-100 { width: 100%; }
.divider { height: 1px; background: var(--border); margin: 24px 0; }
.sticky-top { position: sticky; top: 20px; }

/* ---- SPINNER ---- */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--navy);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  margin: 40px auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- PÁGINA VAZIA ---- */
.empty-state { text-align: center; padding: 80px 24px; }
.empty-state i { font-size: 4rem; color: var(--border); margin-bottom: 20px; }
.empty-state h3 { color: var(--chrome-dark); margin-bottom: 10px; }
.empty-state p { color: var(--chrome); margin-bottom: 24px; }

/* ---- RESPONSIVO ---- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .hero-stats { gap: 32px; }
}

@media (max-width: 768px) {
  section { padding: 56px 0; }
  .header-top { display: none; }
  .header-search { display: none; }
  .nav-toggle { display: flex; }
  #site-nav .container { flex-direction: column; align-items: stretch; padding: 0; }
  .nav-menu { display: none; flex-direction: column; }
  .nav-menu.aberto { display: flex; }
  .nav-menu > li > a { padding: 13px 20px; border-bottom: 1px solid rgba(255,255,255,.08); }
  .nav-dropdown { position: static; box-shadow: none; border: none; border-top: none; background: rgba(0,0,0,.2); border-radius: 0; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .form-row.col-3 { grid-template-columns: 1fr; }
  .hero { padding: 56px 0; }
  .hero-stats { flex-wrap: wrap; gap: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .filtros-bar form { flex-direction: column; }
}

@media (max-width: 480px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.75rem; }
  .hero-actions { flex-direction: column; }
  .checkout-steps { overflow-x: auto; }
}

/* ---- PATCH HEADER BUTTONS: CONTATO + ÁREA RESTRITA ---- */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.header-action-btn {
  min-height: 40px;
  padding: 10px 18px;
  white-space: nowrap;
}

.header-admin-btn {
  background: transparent;
  color: var(--chrome-dark);
  border: 1.5px solid var(--chrome);
}

.header-admin-btn:hover {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(10,36,99,.14);
}

.header-contact-btn:hover {
  transform: translateY(-2px);
}

@media (max-width: 768px) {
  .header-main .container {
    flex-wrap: wrap;
    gap: 16px;
  }

  .header-actions {
    width: 100%;
    justify-content: flex-end;
    gap: 10px;
  }

  .header-action-btn {
    min-width: 42px;
    min-height: 42px;
    padding: 10px 12px;
    justify-content: center;
  }

  .header-action-text {
    display: none;
  }
}

@media (max-width: 480px) {
  .header-actions {
    gap: 8px;
  }

  .header-cart {
    padding: 8px 4px;
  }
}