/* ==========================================================================
   HEADER / NAVEGAÇÃO
   ========================================================================== */

.lumina-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(6, 12, 23, 0.55);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background var(--dur-fast) ease, padding var(--dur-fast) ease;
}

.lumina-header.is-scrolled {
  background: rgba(6, 12, 23, 0.92);
}

.lumina-header__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding: 0.85rem var(--container-pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.lumina-header__logo img {
  height: 40px;
  width: auto;
}

.lumina-nav {
  display: flex;
  align-items: center;
  gap: 2.4rem;
}

.lumina-nav__list {
  list-style: none;
  display: flex;
  gap: 2.2rem;
  margin: 0;
  padding: 0;
}

.lumina-nav__list a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text-on-dark-muted);
  position: relative;
  padding-bottom: 4px;
  transition: color var(--dur-fast) ease;
}

.lumina-nav__list a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--color-accent);
  transition: right var(--dur-fast) var(--ease-lumina);
}

.lumina-nav__list a:hover {
  color: var(--color-text-on-dark);
}
.lumina-nav__list a:hover::after { right: 0; }

.lumina-header__cta {
  padding: 0.7em 1.5em;
  font-size: 0.86rem;
}

.lumina-nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-on-dark);
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
}

.lumina-nav-toggle span,
.lumina-nav-toggle span::before,
.lumina-nav-toggle span::after {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  position: relative;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.lumina-nav-toggle span::before { position: absolute; top: -7px; }
.lumina-nav-toggle span::after { position: absolute; top: 7px; }

@media (max-width: 880px) {
  .lumina-nav-toggle { display: flex; }

  .lumina-nav {
    position: fixed;
    inset: 0 0 0 auto;
    top: 0;
    width: min(320px, 82vw);
    height: 100vh;
    background: var(--lumina-navy-950);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 2.4rem;
    padding: 2rem var(--container-pad);
    transform: translateX(100%);
    transition: transform 0.5s var(--ease-lumina);
    border-left: 1px solid rgba(255,255,255,0.08);
  }

  body.lumina-nav-open .lumina-nav { transform: translateX(0); }

  .lumina-nav__list {
    flex-direction: column;
    gap: 1.4rem;
  }
}