/* Header / Navigation - Dark Glassmorphism */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  z-index: 100;
  background: rgba(6, 17, 26, 0.75);
  border-bottom: 1px solid var(--color-line);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.header.is-scrolled {
  height: 68px;
  background: rgba(4, 11, 17, 0.92);
  box-shadow: 0 4px 30px rgba(2, 6, 10, 0.3);
}

.brand img {
  height: 32px;
  width: auto;
  transition: height 0.4s ease;
}

.header.is-scrolled .brand img {
  height: 28px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav a {
  padding: 8px 16px;
  color: var(--color-text);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: all 0.25s ease;
  position: relative;
}

.nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 1px;
  background-color: var(--color-gold);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.nav a:hover {
  color: var(--color-white);
}

.nav a:hover::after {
  transform: scaleX(1);
}

.nav-cta {
  background: var(--color-gold) !important;
  color: var(--color-dark-950) !important;
  border-radius: var(--radius-md) !important;
  font-weight: 700 !important;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  background: var(--color-white) !important;
  color: var(--color-dark-950) !important;
  transform: translateY(-1px);
}

/* Nav Toggle (Mobile) */
.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  width: 44px;
  height: 44px;
  position: relative;
  cursor: pointer;
  z-index: 101;
}

.nav-toggle span {
  position: absolute;
  left: 14px;
  right: 14px;
  height: 1px;
  background-color: var(--color-white);
  transition: transform 0.3s ease, top 0.3s ease, bottom 0.3s ease, opacity 0.2s ease;
}

.nav-toggle span:first-child {
  top: 19px;
}

.nav-toggle span:last-child {
  top: 25px;
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: rotate(45deg);
  top: 22px;
}

.nav-toggle[aria-expanded="true"] span:last-child {
  transform: rotate(-45deg);
  top: 22px;
}

/* Layout Grids */
.hero-grid,
.split-grid,
.marketing-grid,
.contact-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 96px;
  align-items: center;
}

/* Evita que itens de grid/flex forcem overflow horizontal em telas
   estreitas: por padrão o navegador usa min-width:auto (= min-content)
   em itens de grid/flex, o que pode empurrar a largura além do
   viewport quando o conteúdo interno (ex: <select>, <input>) tem um
   tamanho mínimo intrínseco maior que o espaço disponível. */
.hero-grid > *,
.split-grid > *,
.marketing-grid > *,
.contact-grid > *,
.cards-grid > *,
.dash-metrics > *,
.strip-items > * {
  min-width: 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 56px;
}

.section-heading.compact {
  margin-bottom: 0;
}

.section-heading p {
  font-size: 1.12rem;
  max-width: 600px;
  line-height: 1.7;
}

/* Footer - Discreet & High-End */
.footer {
  background: var(--color-dark-950);
  padding: 80px 0;
  color: var(--color-muted);
  border-top: 1px solid var(--color-line-gold);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 40px;
}

.footer-brand img {
  height: 36px;
  width: auto;
}

.footer-info {
  max-width: 500px;
}

.footer-info p {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin-bottom: 0;
  line-height: 1.6;
}

.footer-top-link {
  font-weight: 600;
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--color-gold);
  padding-bottom: 2px;
}

.footer-top-link:hover {
  color: var(--color-gold);
  border-bottom-color: var(--color-white);
  transform: translateY(-2px);
}

/* Responsive Layout */
@media (max-width: 991px) {
  .header {
    padding: 0 24px;
  }

  .hero-grid,
  .split-grid,
  .marketing-grid,
  .stack-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .nav-toggle {
    display: block;
  }

  .nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--color-dark-950);
    border-bottom: 1px solid var(--color-line);
    padding: 24px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    gap: 12px;
    z-index: 50;
  }

  .nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav a {
    text-align: center;
    padding: 12px;
  }
  
  .nav a::after {
    display: none;
  }

  .footer-grid {
    flex-direction: column;
    align-items: flex-start;
  }
}