/* ==========================================================================
   VW Tecnologia que impulsiona — Layout, Header, Navegação e Footer
   css/layout.css
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Contêineres de Layout
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container--wide {
  max-width: var(--container-wide);
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* --------------------------------------------------------------------------
   2. Cabeçalho Fixo (Header) com Backdrop Blur
   -------------------------------------------------------------------------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding-top: var(--space-sm);
  padding-bottom: var(--space-sm);
  background-color: rgba(6, 8, 11, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.site-header--scrolled {
  padding-top: var(--space-sm);
  padding-bottom: var(--space-sm);
  background-color: rgba(6, 8, 11, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border-subtle);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.site-header--hidden {
  transform: none;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

/* --------------------------------------------------------------------------
   3. Marca e Identidade Visual (Logo)
   -------------------------------------------------------------------------- */

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-primary);
  text-decoration: none;
}

.brand-logo-svg {
  width: 48px;
  height: auto;
  color: var(--text-primary);
  flex-shrink: 0;
  transition: color var(--dur-fast) ease;
}

.brand-wrapper:hover .brand-logo-svg {
  color: var(--accent);
}

.brand-meta {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-base);
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-descriptor {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

@media (max-width: 480px) {
  .brand-wrapper {
    gap: 0.5rem;
  }

  .brand-logo-svg {
    width: 38px;
  }

  .brand-name {
    font-size: var(--text-sm);
  }

  .brand-descriptor {
    font-size: 0.5625rem;
    letter-spacing: 0.04em;
  }

  .site-header .btn-header-cta {
    padding: 0.45rem 0.75rem;
    font-size: 0.6875rem;
  }
}

/* --------------------------------------------------------------------------
   4. Navegação Desktop
   -------------------------------------------------------------------------- */

.nav-desktop {
  display: none;
}

@media (min-width: 1024px) {
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
  }

  .nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
  }

  .nav-link {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    padding: var(--space-xs) 0;
    position: relative;
    transition: color var(--dur-fast) ease;
  }

  .nav-link:hover,
  .nav-link[aria-current="page"] {
    color: var(--text-primary);
  }

  .nav-link[aria-current="page"]::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent);
  }
}

/* --------------------------------------------------------------------------
   5. Ações do Cabeçalho e Botões
   -------------------------------------------------------------------------- */

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.btn-header-social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.5rem 0.75rem;
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--text-secondary);
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  text-decoration: none;
  white-space: nowrap;
  transition: all var(--dur-fast) var(--ease-out-expo);
}

.btn-header-social:hover {
  color: var(--text-primary);
  border-color: var(--accent);
  background-color: rgba(255, 255, 255, 0.06);
}

.btn-header-social svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .btn-header-social span {
    display: none;
  }

  .btn-header-social {
    padding: 0.5rem;
  }
}

.btn-header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.15rem;
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface);
  color: var(--accent-ice);
  border: 1px solid rgba(187, 238, 248, 0.28);
  transition: all var(--dur-fast) var(--ease-out-expo);
  text-decoration: none;
  white-space: nowrap;
}

.btn-header-cta:hover {
  background-color: var(--accent);
  color: var(--text-inverse);
  border-color: var(--accent);
  box-shadow: 0 0 16px var(--accent-glow);
}

/* Botão Hambúrguer Mobile */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  padding: 8px;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  gap: 5px;
  transition: border-color var(--dur-fast) ease;
}

.menu-toggle:hover {
  border-color: var(--accent);
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background-color: currentColor;
  transition: transform var(--dur-base) var(--ease-out-expo),
              opacity var(--dur-fast) ease;
}

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

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

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

@media (min-width: 1024px) {
  .menu-toggle {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   6. Menu Mobile (Drawer Deslizante com Trava de Scroll)
   -------------------------------------------------------------------------- */

.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  max-width: 400px;
  height: 100vh;
  height: 100dvh;
  background-color: var(--bg-surface);
  border-left: 1px solid var(--border-subtle);
  z-index: 105;
  padding: var(--space-3xl) var(--space-xl) var(--space-xl);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transform: translateX(100%);
  transition: transform var(--dur-base) var(--ease-out-expo);
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.8);
}

.mobile-nav-drawer[aria-hidden="false"] {
  transform: translateX(0);
}

.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(6, 8, 11, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 102;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-base) ease;
}

.mobile-nav-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.mobile-nav-link {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  display: inline-block;
  transition: color var(--dur-fast) ease, transform var(--dur-fast) ease;
}

.mobile-nav-link:hover {
  color: var(--accent);
  transform: translateX(6px);
}

.mobile-nav-footer {
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* --------------------------------------------------------------------------
   7. Rodapé Institucional (Footer)
   -------------------------------------------------------------------------- */

.site-footer {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-xl);
  margin-top: auto;
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr 1.2fr 1.2fr 1.5fr;
  }
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer-link {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  transition: color var(--dur-fast) ease;
}

.footer-link:hover {
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  font-size: var(--text-xs);
  color: var(--text-muted);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    align-items: center;
  }
}

.footer-bottom-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

/* Badge de conformidade e privacidade */
.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
}

.footer-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--status-success);
}