/* =========================================================================
   OKIAX — LANDING PAGE
   Design system: navy / verde / dourado / creme sobre grafite,
   inspirado diretamente na identidade visual da marca.
   ========================================================================= */

/* -------------------------------------------------------------------------
   1. TOKENS (variaveis globais)
------------------------------------------------------------------------- */
:root {
  --c-ink: #0b0d10;             /* fundo escuro principal */
  --c-ink-soft: #14171c;        /* fundo escuro alternativo (cards no dark) */
  --c-navy: #12335f;            /* azul marinho da marca */
  --c-navy-light: #24518f;
  --c-green: #146b47;           /* verde da marca */
  --c-green-light: #1f8a5e;
  --c-gold: #c9a227;            /* dourado da marca */
  --c-gold-light: #e0bf52;
  --c-cream: #f4f1e9;           /* off-white do wordmark */
  --c-ice: #dce9ff;             /* azul bem claro, quase branco, p/ destaque */
  --c-slate: #5b6472;           /* texto secundario em fundo claro */
  --c-body-bg: #ffffff;
  --c-alt-bg: #f7f6f2;
  --c-border: rgba(11, 13, 16, 0.08);
  --c-border-dark: rgba(244, 241, 233, 0.14);

  --font-display: 'Space Grotesk', 'Segoe UI', Arial, sans-serif;
  --font-body: 'Inter', 'Segoe UI', Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  --container-w: 1180px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-card: 0 10px 30px -18px rgba(11, 13, 16, 0.35);
  --transition: 220ms ease;
}

/* -------------------------------------------------------------------------
   2. RESET BASICO
------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--c-ink);
  background: var(--c-body-bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; margin: 0; padding: 0; }
h1, h2, h3 { font-family: var(--font-display); margin: 0 0 16px; line-height: 1.15; font-weight: 600; }
p { margin: 0; }
button { font-family: inherit; cursor: pointer; }
svg { width: 100%; height: 100%; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--c-green-light);
  outline-offset: 3px;
}

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

/* -------------------------------------------------------------------------
   3. BOTOES
------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid transparent;
  padding: 14px 26px;
  transition: transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-block { width: 100%; }
.btn-primary { background: var(--c-green); color: var(--c-cream); }
.btn-primary:hover { background: var(--c-green-light); }
.btn-outline { border-color: var(--c-border-dark); color: var(--c-cream); }
.btn-outline:hover { border-color: var(--c-gold-light); color: var(--c-gold-light); }
/* Botao "Fale conosco": menor, com efeito 3D sutil (relevo + sombra),
   letras mais estilizadas (caixa alta, espacadas). */
.btn-header {
  padding: 9px 20px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: 8px;
  border: 1px solid rgba(0, 0, 0, 0.25);
  background: linear-gradient(180deg, var(--c-green-light) 0%, var(--c-green) 100%);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.25) inset,
    0 -2px 0 rgba(0, 0, 0, 0.18) inset,
    0 4px 10px -4px rgba(0, 0, 0, 0.55);
  transition: transform 150ms ease, box-shadow 150ms ease;
}
.btn-header:hover {
  transform: translateY(-1px);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.3) inset,
    0 -2px 0 rgba(0, 0, 0, 0.18) inset,
    0 6px 14px -4px rgba(0, 0, 0, 0.6);
}
.btn-header:active {
  transform: translateY(1px);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.15) inset,
    0 -1px 0 rgba(0, 0, 0, 0.18) inset,
    0 2px 6px -3px rgba(0, 0, 0, 0.5);
}

/* -------------------------------------------------------------------------
   4. HEADER
------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 13, 16, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--c-border-dark);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 12px 24px;
}

.brand { display: flex; align-items: center; flex-shrink: 0; }

/* Coluna central: tagline em cima, navegação embaixo, ambas centralizadas
   entre si (a coluna ocupa o espaço livre entre logo e botao). */
.header-center {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

/* "- Tecnologia e Finanças -": fonte serifada/italica, tom dourado (mesma
   cor da ultima barra do grafico do Hero), tamanho maior e ainda centralizada
   em relacao ao menu logo abaixo. */
.brand-tagline {
  margin: 0;
  font-family: Georgia, 'Times New Roman', serif;
  font-style: italic;
  font-weight: 400;
  font-size: clamp(1.3rem, 0.95rem + 1.3vw, 2.05rem);
  letter-spacing: 0.02em;
  color: var(--c-gold-light);
  white-space: nowrap;
  text-align: center;
}

.header-top-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-shrink: 0;
}

/* Navegacao centralizada, dentro de uma "pilula" sutil */
.main-nav {
  display: flex;
  justify-content: center;
}
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 30px;
  background: rgba(244, 241, 233, 0.04);
  border: 1px solid var(--c-border-dark);
  border-radius: 999px;
  padding: 10px 26px;
}

/* Logo ampliada e centralizada verticalmente entre os dois blocos de texto
   (tagline + menu), reforcando a marca como ancora visual do header. */
.brand-logo {
  height: 96px;
  width: auto;

  border-radius: 4px;
}

/* --- Giro lento no eixo vertical (efeito "placa girando"), sem espelhar
       o texto: usamos duas copias da mesma imagem, uma de frente e outra
       ja pre-espelhada e virada 180o, entao a face visivel ao espectador
       esta sempre correta durante toda a rotacao. --- */
.brand-logo-3d {
  display: inline-grid;
  perspective: 900px;
}
.brand-logo-spin {
  display: grid;
  transform-style: preserve-3d;
  animation: logo-spin-y 9s linear infinite;
  transition: transform var(--transition);
}
.brand-logo-face {
  grid-area: 1 / 1;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
.brand-logo-front { transform: rotateY(0deg); }
.brand-logo-back { transform: rotateY(180deg); }

@keyframes logo-spin-y {
  from { transform: rotateY(0deg); }
  to   { transform: rotateY(360deg); }
}

/* Pausa suave ao passar o mouse, para facilitar a leitura */
.brand:hover .brand-logo-spin { animation-play-state: paused; }

/* Respeita quem prefere menos movimento na tela */
@media (prefers-reduced-motion: reduce) {
  .brand-logo-spin { animation: none; }
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: rgba(244, 241, 233, 0.85);
  position: relative;
  padding: 6px 0;
  transition: color var(--transition);
}
.nav-link:hover { color: var(--c-gold-light); }
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--c-green-light);
  transition: width var(--transition);
}
.nav-link:hover::after { width: 100%; }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px;
  flex-shrink: 0;
}
.menu-toggle span { width: 24px; height: 2px; background: var(--c-cream); border-radius: 2px; transition: transform var(--transition), opacity var(--transition); }
.menu-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.is-open span:nth-child(2) { opacity: 0; }
.menu-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* -------------------------------------------------------------------------
   5. EYEBROW (rotulo acima dos titulos + "assinatura" de tres barras,
      eco do icone da logo OKIAX)
------------------------------------------------------------------------- */
.eyebrow-bars { display: inline-flex; flex-direction: column; gap: 3px; margin-right: 10px; vertical-align: middle; }
.eyebrow-bars i { display: block; height: 4px; border-radius: 3px; }
.eyebrow-bars i:nth-child(1) { background: var(--c-navy-light); width: 18px; }
.eyebrow-bars i:nth-child(2) { background: var(--c-green-light); width: 13px; }
.eyebrow-bars i:nth-child(3) { background: var(--c-gold-light); width: 8px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--c-ice);
  margin-bottom: 16px;
}
/* Variante para uso sobre fundos claros (secoes section-light) */
.eyebrow-dark {
  color: var(--c-navy);
}
/* Variante para uso sobre o bloco de contato (fundo em destaque) */
.eyebrow-on-accent {
  color: var(--c-ice);
}

.section-head { max-width: 760px; margin: 0 auto 56px; text-align: left; }
.section-lead { color: rgba(244, 241, 233, 0.72); max-width: 620px; font-size: 1.05rem; }
.section-lead-dark { color: var(--c-slate); }
.section-lead-on-accent { color: rgba(244, 241, 233, 0.85); }

/* -------------------------------------------------------------------------
   6. HERO
------------------------------------------------------------------------- */
.hero {
  position: relative;
  background: radial-gradient(120% 120% at 15% 0%, #14203a 0%, var(--c-ink) 55%);
  color: var(--c-cream);
  overflow: hidden;
  padding: 100px 0 90px;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(244,241,233,0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(244,241,233,0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(circle at 20% 20%, black, transparent 70%);
  mask-image: radial-gradient(circle at 20% 20%, black, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}
.hero-title { font-size: clamp(1.6rem, 1.15rem + 1.9vw, 2.5rem); margin-bottom: 22px; letter-spacing: -0.01em; }
.hero-subtitle { font-size: 1.1rem; color: rgba(244, 241, 233, 0.78); max-width: 560px; margin-bottom: 34px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 36px; }

.hero-tags { display: flex; flex-wrap: wrap; gap: 10px 22px; }
.hero-tags li {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(244, 241, 233, 0.55);
  padding-left: 16px;
  position: relative;
}
.hero-tags li::before {
  content: "";
  position: absolute; left: 0; top: 50%;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--c-gold-light);
  transform: translateY(-50%);
}

/* --- Ilustracao do hero: pontos dispersos que convergem em tres barras
       niveladas (estrutura / direcao / controle), eco do icone da logo. --- */
.hero-visual { display: flex; justify-content: center; }
#hero-svg { max-width: 420px; }

.scatter-dots circle { fill: rgba(244, 241, 233, 0.35); }
.link-lines line { stroke: rgba(244, 241, 233, 0.16); stroke-width: 1.4; }

.level-bar rect { rx: 13px; }
.level-bar.bar-1 rect, .level-bar.bar-1 circle { fill: var(--c-navy-light); }
.level-bar.bar-2 rect, .level-bar.bar-2 circle { fill: var(--c-green-light); }
.level-bar.bar-3 rect, .level-bar.bar-3 circle { fill: var(--c-gold-light); }

.scatter-dots circle,
.link-lines line,
.level-bar { opacity: 0; animation: hero-fade-in 0.9s ease forwards; }
.scatter-dots circle { animation-delay: 0.1s; }
.link-lines line { animation-delay: 0.5s; }
.level-bar.bar-1 { animation-delay: 0.85s; }
.level-bar.bar-2 { animation-delay: 1.0s; }
.level-bar.bar-3 { animation-delay: 1.15s; }

@keyframes hero-fade-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.level-bar rect, .level-bar circle { opacity: 1; }
.level-bar { opacity: 0; }

/* -------------------------------------------------------------------------
   7. SECOES GERAIS
------------------------------------------------------------------------- */
.section { padding: 100px 0; }
.section-dark { background: var(--c-ink); color: var(--c-cream); }
.section-light { background: var(--c-alt-bg); color: var(--c-ink); }

/* -------------------------------------------------------------------------
   8. GRID / CARDS GENERICOS
------------------------------------------------------------------------- */
.grid { display: grid; gap: 28px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Problemas (cards sobre fundo escuro) */
.card {
  background: var(--c-ink-soft);
  border: 1px solid var(--c-border-dark);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.card:hover { transform: translateY(-4px); border-color: rgba(244,241,233,0.28); box-shadow: 0 20px 40px -22px rgba(0,0,0,0.6); }
.card h3 { font-size: 1.08rem; margin-bottom: 10px; }
.card p { color: rgba(244, 241, 233, 0.68); font-size: 0.96rem; }

.card-icon {
  width: 44px; height: 44px;
  margin-bottom: 18px;
  border-radius: var(--radius-md);
  background: rgba(244, 241, 233, 0.06);
  border: 1px solid var(--c-border-dark);
  display: flex; align-items: center; justify-content: center;
  color: var(--c-gold-light);
}
.card-icon svg circle, .card-icon svg rect, .card-icon svg path { fill: currentColor; stroke: none; }

/* Diferenciais (cards sobre fundo claro) */
.diff-card {
  background: var(--c-body-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.diff-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.diff-card h3 { font-size: 1.08rem; margin-bottom: 10px; }
.diff-card p { color: var(--c-slate); font-size: 0.96rem; }

.diff-icon {
  width: 44px; height: 44px;
  margin-bottom: 18px;
  border-radius: var(--radius-md);
  background: rgba(18, 51, 95, 0.08);
  display: flex; align-items: center; justify-content: center;
  color: var(--c-navy);
}
.diff-icon svg { fill: none; stroke: currentColor; stroke-width: 1.8; }

/* -------------------------------------------------------------------------
   9. SOLUCOES
------------------------------------------------------------------------- */
.solution-card {
  background: var(--c-body-bg);
  border-radius: var(--radius-md);
  padding: 34px 28px;
  border: 1px solid var(--c-border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.solution-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.solution-index {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--c-gold);
  display: block;
  margin-bottom: 14px;
}
.solution-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.solution-card p { color: var(--c-slate); font-size: 0.96rem; }

.solution-card-cta {
  background: var(--c-navy);
  border-color: var(--c-navy);
  color: var(--c-cream);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 16px;
}
.solution-card-cta h3 { color: var(--c-cream); }
.solution-card-cta p { color: rgba(244, 241, 233, 0.78); }

/* -------------------------------------------------------------------------
   10. TIMELINE (como funciona o atendimento)
------------------------------------------------------------------------- */
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.timeline-step { display: flex; flex-direction: column; gap: 16px; }
.timeline-bar {
  height: 6px;
  border-radius: 6px;
  background: rgba(244, 241, 233, 0.12);
  position: relative;
  overflow: hidden;
}
.timeline-bar::after {
  content: "";
  position: absolute; inset: 0 100% 0 0;
  background: linear-gradient(90deg, var(--c-navy-light), var(--c-green-light) 55%, var(--c-gold-light));
  border-radius: 6px;
  transition: right 1s cubic-bezier(.2,.8,.2,1);
}
.timeline-step.is-visible .timeline-bar::after { right: calc(100% - var(--bar-fill, 25%)); }
.timeline-text h3 { font-size: 1.08rem; margin-bottom: 8px; }
.timeline-text p { color: rgba(244, 241, 233, 0.68); font-size: 0.94rem; }

/* -------------------------------------------------------------------------
   11. SOBRE / INSTITUCIONAL
------------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 60px;
  align-items: start;
}
.about-grid > div:first-child p { color: rgba(244, 241, 233, 0.72); margin-top: 16px; font-size: 1.02rem; }
.about-grid > div:first-child p:first-of-type { margin-top: 0; }

.values-grid { display: flex; flex-direction: column; gap: 20px; }
.value-item {
  background: var(--c-ink-soft);
  border: 1px solid var(--c-border-dark);
  border-radius: var(--radius-md);
  padding: 24px 26px;
}
.value-item h3 { font-size: 1rem; color: var(--c-gold-light); margin-bottom: 8px; }
.value-item p { color: rgba(244, 241, 233, 0.72); font-size: 0.95rem; }

/* -------------------------------------------------------------------------
   12. CHAMADA FINAL / CONTATO
------------------------------------------------------------------------- */
.cta-final {
  background: linear-gradient(135deg, var(--c-navy) 0%, #0f2447 60%, var(--c-ink) 100%);
  color: var(--c-cream);
}
.cta-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: start;
}
.contact-info { margin-top: 28px; display: flex; flex-direction: column; gap: 12px; }
.contact-info li { color: rgba(244, 241, 233, 0.85); font-size: 0.95rem; }
.contact-info strong { color: var(--c-gold-light); font-weight: 600; }

.contact-form {
  background: rgba(11, 13, 16, 0.55);
  border: 1px solid var(--c-border-dark);
  border-radius: var(--radius-lg);
  padding: 34px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  backdrop-filter: blur(6px);
}
.form-row { display: flex; flex-direction: column; gap: 8px; }
.form-row-split { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-row-split > div { display: flex; flex-direction: column; gap: 8px; }

label { font-size: 0.85rem; color: rgba(244, 241, 233, 0.75); font-weight: 500; }
input, textarea {
  background: rgba(244, 241, 233, 0.06);
  border: 1px solid var(--c-border-dark);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--c-cream);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition), background var(--transition);
}
input::placeholder, textarea::placeholder { color: rgba(244, 241, 233, 0.35); }
input:focus, textarea:focus {
  border-color: var(--c-green-light);
  background: rgba(244, 241, 233, 0.1);
  outline: none;
}
textarea { resize: vertical; min-height: 100px; }

.form-row.has-error input,
.form-row.has-error textarea { border-color: #d16a6a; }
.form-error { font-size: 0.78rem; color: #e08a8a; min-height: 14px; }
.form-feedback { margin: 0; font-size: 0.9rem; color: var(--c-green-light); min-height: 18px; }

/* -------------------------------------------------------------------------
   13. FOOTER
------------------------------------------------------------------------- */
.site-footer { background: #07080a; color: rgba(244, 241, 233, 0.75); padding-top: 64px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--c-border-dark);
}
.footer-brand .brand-logo { height: 38px; margin-bottom: 14px; }
.footer-brand p { font-size: 0.92rem; max-width: 320px; }

.footer-nav h3, .footer-contact h3 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--c-gold-light);
  margin-bottom: 16px;
}
.footer-nav ul, .footer-contact ul { display: flex; flex-direction: column; gap: 10px; }
.footer-nav a { font-size: 0.92rem; transition: color var(--transition); }
.footer-nav a:hover { color: var(--c-gold-light); }
.footer-contact li { font-size: 0.92rem; }

.footer-bottom { padding: 22px 24px; text-align: center; font-size: 0.82rem; }

/* -------------------------------------------------------------------------
   14. REVELACAO DE ELEMENTOS AO ROLAR (controlado via JS)
------------------------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* -------------------------------------------------------------------------
   15. RESPONSIVIDADE
------------------------------------------------------------------------- */

/* Tablets */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 420px; margin: 0 auto 20px; }
  .about-grid { grid-template-columns: 1fr; }
  .cta-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .brand-logo { height: 58px; }
  .brand-tagline { font-size: clamp(1rem, 0.8rem + 0.9vw, 1.3rem); white-space: normal; }
  .main-nav ul { gap: 16px; padding: 8px 18px; }
  .nav-link { font-size: 0.86rem; }
}

/* Celulares */
@media (max-width: 720px) {
  .section { padding: 72px 0; }
  .hero { padding: 84px 0 60px; }
  .brand-logo { height: 52px; }

  /* Espaço curto demais para logo + tagline + hambúrguer: prioriza a marca */
  .brand-tagline { display: none; }

  .main-nav {
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: rgba(11, 13, 16, 0.98);
    border-bottom: 1px solid var(--c-border-dark);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
  }
  .main-nav.is-open { max-height: 400px; }
  .main-nav ul { flex-direction: column; gap: 0; padding: 8px 24px 20px; }
  .main-nav .nav-link { display: block; padding: 14px 0; border-bottom: 1px solid var(--c-border-dark); }
  .menu-toggle { display: flex; }
  .header-inner .btn-header { display: none; }

  .grid-4, .grid-3, .timeline { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; text-align: left; }
  .form-row-split { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
  .hero-actions { flex-direction: column; }
}