/* ==========================================================================
   ROUXINHO REPRESENTAÇÕES — STYLESHEET
   Estrutura do arquivo:
   1. Fontes & Reset
   2. Design Tokens (variáveis de cor, tipografia, espaçamento)
   3. Utilitários gerais (container, eyebrow, botões, seções)
   4. Cabeçalho / Navbar
   5. Hero + elemento assinatura "Linha de Conexão"
   6. Sobre Nós + Cartões de Pilares
   7. Serviços
   8. Parceiros / Indústrias Representadas
   9. Contato + Formulário
   10. Rodapé
   11. Botão "Voltar ao topo"
   12. Animações de entrada (scroll reveal)
   13. Acessibilidade / Movimento reduzido
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. FONTES & RESET
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@600;700;800&family=Roboto:wght@400;500;700&display=swap');

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  /* Compensa a altura do cabeçalho fixo ao navegar por âncoras */
  scroll-padding-top: 84px;
}

body {
  font-family: var(--font-body);
  color: var(--color-graphite-900);
  background-color: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input,
textarea {
  font-family: inherit;
  font-size: 1rem;
}

/* Estado de foco visível para navegação por teclado (acessibilidade) */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--color-gold-500);
  outline-offset: 3px;
  border-radius: 4px;
}

/* --------------------------------------------------------------------------
   2. DESIGN TOKENS
   -------------------------------------------------------------------------- */
:root {
  /* Paleta — tons corporativos elegantes */
  --color-navy-950: #071a2e;   /* navy mais profundo (rodapé) */
  --color-navy-900: #0b2340;   /* navy principal (header/hero) */
  --color-navy-800: #123a5e;   /* navy secundário (gradientes) */
  --color-petrol-700: #145c6e; /* azul-petróleo (ícones, detalhes) */

  --color-graphite-900: #22262b; /* texto principal */
  --color-graphite-600: #5b636c; /* texto secundário / muted */

  --color-white: #ffffff;
  --color-offwhite: #f5f7f9;   /* fundo alternado de seção */
  --color-border: #e3e7eb;

  --color-gold-500: #c6a15b;   /* dourado — destaque principal */
  --color-gold-600: #ad8748;   /* dourado — hover / mais escuro */
  --color-gold-100: #f4ead5;   /* dourado — fundo suave */

  --color-ice-400: #8fb8d6;    /* azul claro — acentos secundários */

  /* Tipografia */
  --font-display: 'Inter', system-ui, sans-serif;
  --font-body: 'Roboto', system-ui, sans-serif;

  /* Sombras */
  --shadow-soft: 0 10px 30px rgba(11, 35, 64, 0.08);
  --shadow-medium: 0 16px 40px rgba(11, 35, 64, 0.14);
  --shadow-gold: 0 12px 28px rgba(198, 161, 91, 0.35);

  /* Raios */
  --radius-card: 14px;
  --radius-pill: 999px;

  /* Transições */
  --transition-base: 0.25s ease;
}

/* --------------------------------------------------------------------------
   3. UTILITÁRIOS GERAIS
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 1.25rem;
}

section {
  padding-block: 4.5rem;
}

.section-header {
  max-width: 640px;
  margin-bottom: 2.75rem;
}

.section-header.center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-gold-600);
  margin-bottom: 0.9rem;
}

.eyebrow::before {
  content: '';
  width: 26px;
  height: 2px;
  background: var(--color-gold-500);
  display: inline-block;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  color: var(--color-navy-900);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.01em;
}

h2 {
  font-size: 1.75rem;
}

h3 {
  font-size: 1.15rem;
}

.section-header p,
.lede {
  color: var(--color-graphite-600);
  font-size: 1.05rem;
  margin-top: 0.9rem;
}

/* Botões */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.9rem 1.7rem;
  border-radius: var(--radius-pill);
  transition: transform var(--transition-base), box-shadow var(--transition-base),
    background-color var(--transition-base), color var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-gold-500), var(--color-gold-600));
  color: var(--color-navy-950);
  box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(198, 161, 91, 0.45);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255, 255, 255, 0.55);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

.btn-lock {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-white);
  border: 1.5px solid var(--color-gold-500);
  font-size: 0.85rem;
  padding: 0.65rem 1.25rem;
}

.btn-lock:hover {
  background: var(--color-gold-500);
  color: var(--color-navy-950);
}

.btn-block {
  width: 100%;
}

/* --------------------------------------------------------------------------
   4. CABEÇALHO / NAVBAR
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 1000;
  background: rgba(7, 26, 46, 0.92);
  backdrop-filter: blur(8px);
  transition: box-shadow var(--transition-base), padding var(--transition-base);
}

.site-header.is-scrolled {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.9rem;
}

/* Logotipo estilizado */
.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--color-white);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-gold-500), var(--color-gold-600));
  color: var(--color-navy-950);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  position: relative;
}

/* Pequeno detalhe: as duas hastes do "R" remetem à ponte indústria-varejo */
.brand-mark::after {
  content: '';
  position: absolute;
  inset: 6px;
  border: 1.5px solid rgba(7, 26, 46, 0.25);
  border-radius: 7px;
  pointer-events: none;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-text .brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
}

.brand-text .brand-sub {
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold-500);
  margin-top: 2px;
}

/* Navegação principal (mobile: painel deslizante) */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  z-index: 1100;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle[aria-expanded='true'] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded='true'] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded='true'] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.main-nav {
  position: fixed;
  inset-block: 0;
  inset-inline-end: 0;
  width: min(78vw, 320px);
  background: var(--color-navy-900);
  padding: 6.5rem 1.75rem 2rem;
  transform: translateX(100%);
  transition: transform 0.35s ease;
  box-shadow: -12px 0 40px rgba(0, 0, 0, 0.35);
}

.main-nav.is-open {
  transform: translateX(0);
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 2rem;
}

.nav-list a {
  display: block;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
  padding: 0.75rem 0.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: color var(--transition-base);
}

.nav-list a:hover,
.nav-list a.active {
  color: var(--color-gold-500);
}

.nav-cta {
  display: block;
}

/* Sobreposição escura quando o menu mobile está aberto */
.nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(4, 12, 22, 0.55);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
  z-index: 999;
}

.nav-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

/* --------------------------------------------------------------------------
   5. HERO + ELEMENTO ASSINATURA "LINHA DE CONEXÃO"
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-block: 8.5rem 5rem;
  color: var(--color-white);
  isolation: isolate;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-media::after {
  content: '';
  position: absolute;
  inset: 0;
  /* Overlay elegante em degradê para garantir legibilidade do texto */
  background: linear-gradient(
    115deg,
    rgba(7, 26, 46, 0.96) 20%,
    rgba(11, 35, 64, 0.88) 55%,
    rgba(20, 92, 110, 0.55) 100%
  );
}

.hero-content {
  max-width: 620px;
}

.hero h1 {
  font-size: 2.1rem;
  color: var(--color-white);
  margin-bottom: 1.2rem;
}

.hero h1 span {
  color: var(--color-gold-500);
}

.hero .lede {
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.05rem;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.2rem;
}

/* Elemento assinatura: a "linha de conexão" indústria > Rouxinho > varejo */
.connection-bridge {
  margin-top: 4rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-card);
  padding: 1.75rem 1.5rem;
  backdrop-filter: blur(6px);
  max-width: 640px;
}

.bridge-caption {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 1.1rem;
  letter-spacing: 0.02em;
}

.bridge-nodes {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.bridge-node {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding-block: 0.55rem;
  position: relative;
}

/* Linha vertical conectando os nós no mobile */
.bridge-node:not(:last-child)::after {
  content: '';
  position: absolute;
  inset-inline-start: 15px;
  top: calc(100% - 4px);
  width: 1px;
  height: 1.1rem;
  background: linear-gradient(var(--color-gold-500), transparent);
}

.bridge-dot {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.85rem;
  border: 1.5px solid var(--color-gold-500);
  color: var(--color-gold-500);
}

.bridge-node.is-rouxinho .bridge-dot {
  background: var(--color-gold-500);
  color: var(--color-navy-950);
}

.bridge-label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
}

.bridge-node.is-rouxinho .bridge-label {
  color: var(--color-gold-500);
}

.bridge-sub {
  display: block;
  font-size: 0.76rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.55);
  margin-top: 1px;
}

/* --------------------------------------------------------------------------
   6. SOBRE NÓS + CARTÕES DE PILARES
   -------------------------------------------------------------------------- */
.about {
  background: var(--color-white);
}

.about-grid {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.about-media {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-medium);
}

.about-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.about-media-badge {
  position: absolute;
  inset-block-end: 1rem;
  inset-inline-start: 1rem;
  background: var(--color-white);
  border-radius: var(--radius-card);
  padding: 0.9rem 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  box-shadow: var(--shadow-soft);
}

.about-media-badge i {
  color: var(--color-gold-600);
  font-size: 1.3rem;
}

.about-media-badge strong {
  display: block;
  font-family: var(--font-display);
  color: var(--color-navy-900);
  font-size: 0.95rem;
}

.about-media-badge span {
  font-size: 0.78rem;
  color: var(--color-graphite-600);
}

.about-text p {
  color: var(--color-graphite-600);
  margin-top: 1rem;
}

.pillars {
  display: grid;
  gap: 1.25rem;
  margin-top: 3rem;
}

.pillar-card {
  background: var(--color-offwhite);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 1.75rem;
  transition: transform var(--transition-base), box-shadow var(--transition-base),
    border-color var(--transition-base);
}

.pillar-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
  border-color: var(--color-gold-500);
}

.pillar-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--color-navy-900);
  color: var(--color-gold-500);
  font-size: 1.25rem;
  margin-bottom: 1.1rem;
}

.pillar-card h3 {
  margin-bottom: 0.5rem;
}

.pillar-card p {
  color: var(--color-graphite-600);
  font-size: 0.95rem;
}

/* --------------------------------------------------------------------------
   7. SERVIÇOS
   -------------------------------------------------------------------------- */
.services {
  background: var(--color-offwhite);
}

.services-grid {
  display: grid;
  gap: 1.5rem;
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-card);
  padding: 2rem 1.75rem;
  border: 1px solid var(--color-border);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(var(--color-gold-500), var(--color-petrol-700));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition-base);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-medium);
}

.service-card:hover::before {
  transform: scaleY(1);
}

.service-icon {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--color-gold-100);
  color: var(--color-gold-600);
  font-size: 1.35rem;
  margin-bottom: 1.25rem;
}

.service-card h3 {
  margin-bottom: 0.6rem;
  font-size: 1.05rem;
}

.service-card p {
  color: var(--color-graphite-600);
  font-size: 0.94rem;
}

/* --------------------------------------------------------------------------
   8. PARCEIROS / INDÚSTRIAS REPRESENTADAS
   -------------------------------------------------------------------------- */
.partners {
  background: var(--color-navy-900);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.partners::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('https://images.unsplash.com/photo-1651525670054-279c154bc3b6?q=80&w=1600&auto=format&fit=crop')
    center / cover no-repeat;
  opacity: 0.1;
}

.partners .section-header p {
  color: rgba(255, 255, 255, 0.68);
}

.partners .container {
  position: relative;
}

.partners .eyebrow {
  color: var(--color-gold-500);
}

.partners h2 {
  color: var(--color-white);
}

.logo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.logo-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  text-align: center;
  padding: 1.75rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-card);
  transition: background var(--transition-base), border-color var(--transition-base),
    transform var(--transition-base);
}

.logo-tile:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-gold-500);
  transform: translateY(-3px);
}

.logo-tile i {
  font-size: 1.5rem;
  color: var(--color-gold-500);
}

.logo-tile span {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.85);
}

.partners-note {
  margin-top: 2rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.55);
  text-align: center;
}

/* --------------------------------------------------------------------------
   9. CONTATO + FORMULÁRIO
   -------------------------------------------------------------------------- */
.contact {
  background: var(--color-white);
}

.contact-grid {
  display: grid;
  gap: 2.5rem;
}

.contact-form {
  background: var(--color-offwhite);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 2rem 1.5rem;
}

.form-row {
  margin-bottom: 1.25rem;
}

.form-row label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-navy-900);
  margin-bottom: 0.4rem;
}

.form-row input,
.form-row textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 10px;
  border: 1.5px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-graphite-900);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-row input:focus,
.form-row textarea:focus {
  border-color: var(--color-petrol-700);
  box-shadow: 0 0 0 4px rgba(20, 92, 110, 0.12);
  outline: none;
}

.form-row textarea {
  resize: vertical;
  min-height: 120px;
}

.form-row.has-error input,
.form-row.has-error textarea {
  border-color: #c0392b;
}

.error-message {
  display: block;
  font-size: 0.78rem;
  color: #c0392b;
  margin-top: 0.35rem;
  min-height: 1em;
}

.form-feedback {
  display: none;
  align-items: center;
  gap: 0.6rem;
  background: #eaf6ee;
  color: #1f7a3d;
  border: 1px solid #bfe6cb;
  border-radius: 10px;
  padding: 0.9rem 1rem;
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}

.form-feedback.is-visible {
  display: flex;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.info-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--color-navy-900);
  color: var(--color-white);
  border-radius: var(--radius-card);
  padding: 1.5rem;
}

.info-card i {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: rgba(198, 161, 91, 0.16);
  color: var(--color-gold-500);
  font-size: 1.05rem;
}

.info-card strong {
  display: block;
  font-family: var(--font-display);
  font-size: 0.95rem;
  margin-bottom: 0.2rem;
}

.info-card span,
.info-card a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
}

.info-card a:hover {
  color: var(--color-gold-500);
}

/* --------------------------------------------------------------------------
   10. RODAPÉ
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-navy-950);
  color: rgba(255, 255, 255, 0.72);
  padding-block: 4rem 1.5rem;
}

.footer-grid {
  display: grid;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .brand-text .brand-name,
.footer-brand .brand {
  color: var(--color-white);
}

.footer-brand p {
  margin-top: 1rem;
  font-size: 0.9rem;
  max-width: 320px;
  color: rgba(255, 255, 255, 0.55);
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 0.95rem;
  margin-bottom: 1.1rem;
  letter-spacing: 0.03em;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-base);
}

.footer-links a:hover {
  color: var(--color-gold-500);
}

.footer-portal {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-pill);
  padding: 0.55rem 1rem;
  margin-top: 0.5rem;
  transition: color var(--transition-base), border-color var(--transition-base);
}

.footer-portal:hover {
  color: var(--color-gold-500);
  border-color: var(--color-gold-500);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  text-align: center;
  padding-top: 1.75rem;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer-social {
  display: flex;
  gap: 0.75rem;
}

.footer-social a {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.7);
  transition: background var(--transition-base), color var(--transition-base);
}

.footer-social a:hover {
  background: var(--color-gold-500);
  color: var(--color-navy-950);
}

/* --------------------------------------------------------------------------
   11. BOTÃO "VOLTAR AO TOPO"
   -------------------------------------------------------------------------- */
.back-to-top {
  position: fixed;
  inset-block-end: 1.5rem;
  inset-inline-end: 1.5rem;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--color-navy-900);
  color: var(--color-gold-500);
  border: 1.5px solid var(--color-gold-500);
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity var(--transition-base), transform var(--transition-base);
  z-index: 900;
  box-shadow: var(--shadow-soft);
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   12. ANIMAÇÕES DE ENTRADA (SCROLL REVEAL)
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   13. ACESSIBILIDADE / MOVIMENTO REDUZIDO
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ==========================================================================
   BREAKPOINTS — MOBILE FIRST (TABLET ≥ 768px / DESKTOP ≥ 1024px)
   ========================================================================== */

/* ---------------------------- TABLET (≥768px) --------------------------- */
@media (min-width: 768px) {
  section {
    padding-block: 6rem;
  }

  h2 {
    font-size: 2.1rem;
  }

  .hero h1 {
    font-size: 2.7rem;
  }

  .about-grid {
    grid-template-columns: 1fr 1fr;
  }

  .pillars {
    grid-template-columns: repeat(3, 1fr);
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .logo-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .contact-grid {
    grid-template-columns: 1.3fr 1fr;
    align-items: start;
  }

  .bridge-nodes {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .bridge-node {
    flex-direction: column;
    text-align: center;
    flex: 1;
  }

  .bridge-node:not(:last-child)::after {
    inset-inline-start: auto;
    top: 15px;
    left: calc(50% + 40px);
    width: calc(100% - 40px);
    height: 1px;
    background: linear-gradient(90deg, var(--color-gold-500), transparent 90%);
  }

  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* --------------------------- DESKTOP (≥1024px) --------------------------- */
@media (min-width: 1024px) {
  .container {
    padding-inline: 2rem;
  }

  section {
    padding-block: 7.5rem;
  }

  h2 {
    font-size: 2.5rem;
  }

  .hero {
    padding-block: 9rem 6rem;
  }

  .hero h1 {
    font-size: 3.4rem;
  }

  .hero-content {
    max-width: 660px;
  }

  /* A navegação passa a ser horizontal e visível permanentemente */
  .nav-toggle {
    display: none;
  }

  .main-nav {
    position: static;
    width: auto;
    background: transparent;
    box-shadow: none;
    transform: none;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 2.25rem;
  }

  .nav-list {
    flex-direction: row;
    gap: 2rem;
    margin-bottom: 0;
  }

  .nav-list a {
    padding: 0.4rem 0.1rem;
    border-bottom: none;
    position: relative;
  }

  .nav-list a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 2px;
    background: var(--color-gold-500);
    transition: width var(--transition-base);
  }

  .nav-list a:hover::after,
  .nav-list a.active::after {
    width: 100%;
  }

  .nav-backdrop {
    display: none;
  }

  .pillars {
    grid-template-columns: repeat(3, 1fr);
  }

  .services-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .logo-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}