/**
 * Trama — navegação compartilhada + menu mobile
 * Carregar por último no <head> (depois dos <style> da página).
 */

/* Acima de cursores / barras de progresso locais (ex.: diagnostico.html) */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10000;
  isolation: isolate;
  padding: 18px var(--ds-section-x);
  padding-top: max(18px, env(safe-area-inset-top));
  transition:
    background var(--ds-dur-slow) var(--ds-ease-out),
    border-color var(--ds-dur-slow) var(--ds-ease-out);
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--ds-border);
}

.nav-inner {
  max-width: var(--ds-max-width);
  margin-inline: auto;
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: var(--ds-sp-4);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--ds-sp-3);
  font-size: clamp(1.05rem, 2.5vw, 1.25rem);
  text-decoration: none;
  color: var(--ds-text);
  justify-self: start;
  min-width: 0;
}

.nav-logo-img {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  display: block;
  border-radius: var(--ds-radius-xs);
}

.nav-logo .brand-wordmark {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-logo span:not(.brand-wm-t):not(.brand-wm-dot):not(.brand-wm-work) {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-mark,
.nav-logo-mark {
  width: 32px;
  height: 32px;
  background: var(--ds-accent);
  color: var(--ds-accent-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--ds-font-display);
  font-size: var(--ds-text-sm);
  font-weight: 400;
  border-radius: var(--ds-radius-xs);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(0.65rem, 2vw, 1.25rem);
  list-style: none;
  margin: 0;
  padding: 0;
  justify-self: center;
}

.nav-links a {
  font-size: var(--ds-text-sm);
  color: var(--ds-text-2);
  text-decoration: none;
  transition: color var(--ds-dur-fast);
}

.nav-links a:hover {
  color: var(--ds-text);
}

.nav-links a:focus-visible,
.nav-cta:focus-visible,
.nav-logo:focus-visible {
  outline: 2px solid var(--ds-success);
  outline-offset: 3px;
  border-radius: var(--ds-radius-xs);
}

.nav-links a.active {
  color: var(--ds-accent);
}

.nav-links a.active:hover {
  color: var(--ds-accent);
}

.nav-end {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: var(--ds-sp-3);
  min-width: 0;
}

/* CTA antes do hamburger no DOM — não encolher o botão */
.nav-end .nav-cta,
.nav-end > a.nav-cta {
  flex-shrink: 0;
}

.nav-cta {
  white-space: nowrap;
}

.nav-cta .ds-btn {
  white-space: nowrap;
}

/* ── Botão hamburger ───────────────────────────────────────── */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--ds-border-2);
  border-radius: var(--ds-radius-sm);
  background: var(--ds-bg-2);
  border-color: var(--ds-border);
  color: var(--ds-text);
  cursor: pointer;
  flex-shrink: 0;
  transition:
    background var(--ds-dur-fast),
    border-color var(--ds-dur-fast);
}

.nav-toggle:hover {
  background: var(--ds-surface-2);
  border-color: var(--ds-border-strong);
}

.nav-toggle svg {
  display: block;
}

.nav-toggle-lines {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 18px;
  height: 14px;
}

.nav-toggle-lines span {
  display: block;
  height: 2px;
  width: 100%;
  background: currentColor;
  border-radius: 1px;
  transition:
    transform 0.2s var(--ds-ease-out),
    opacity 0.2s;
}

.nav.is-open .nav-toggle-lines span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav.is-open .nav-toggle-lines span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav.is-open .nav-toggle-lines span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Mobile: painel full-screen ────────────────────────────── */
@media (max-width: 900px) {
  .nav.is-open {
    background: rgba(255, 255, 255, 0.98);
    border-bottom-color: var(--ds-border);
  }

  .nav-inner {
    display: flex;
    flex-wrap: nowrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--ds-sp-2);
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-logo,
  .nav-end {
    position: relative;
    z-index: 30;
  }

  .nav-links {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    top: 0;
    z-index: 25;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: calc(72px + env(safe-area-inset-top)) var(--ds-section-x)
      max(24px, env(safe-area-inset-bottom));
    margin: 0;
    justify-self: stretch;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--ds-border);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px);
    transition:
      opacity 0.22s var(--ds-ease-out),
      visibility 0.22s,
      transform 0.22s var(--ds-ease-out);
  }

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

  .nav-links li {
    border-bottom: 1px solid var(--ds-border);
  }

  .nav-links a {
    display: block;
    padding: 16px 0;
    font-size: var(--ds-text-base);
  }

  .nav-end {
    gap: var(--ds-sp-4);
  }

  .nav-cta.ds-btn {
    padding: 10px 12px;
    font-size: var(--ds-text-xs);
  }

  .nav-cta .ds-btn {
    padding: 10px 12px;
    font-size: var(--ds-text-xs);
  }
}

@media (max-width: 380px) {
  .nav-cta.ds-btn {
    padding: 10px 8px;
  }

  .nav-cta .ds-btn {
    padding: 10px 8px;
  }
}

body.nav-menu-open {
  overflow: hidden;
}

@media (prefers-reduced-motion: reduce) {
  .nav-links {
    transition: none;
  }
}
