/* ==========================================================================
   Navbar — header fixo da landing AI Journey
   ========================================================================== */

.ai-nav {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 50;
  font-family: var(--font-sans, "Archivo", system-ui, sans-serif);
}

.ai-nav__bg {
  background: var(--ai-nav-bg, rgba(5, 5, 5, 0.6));
  border-bottom: 1px solid var(--ai-nav-border, rgba(255, 255, 255, 0.10));
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
}

@supports not ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  .ai-nav__bg { background: rgba(5, 5, 5, 0.92); }
}

.ai-nav__inner {
  max-width: 80rem;
  margin: 0 auto;
  height: var(--ai-nav-height, 72px);
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

@media (min-width: 1024px) {
  .ai-nav__inner { padding: 0 2rem; }
}

/* --- Logo --------------------------------------------------------------- */

.ai-nav__logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}

.ai-nav__logo img {
  width: auto;
  display: block;
}

.ai-nav__logo-text {
  font-family: var(--font-display, "Archivo Black", system-ui, sans-serif);
  color: var(--color-cream-200, #EFE5D4);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

/* --- Links -------------------------------------------------------------- */

.ai-nav__links {
  display: none;
}

@media (min-width: 768px) {
  .ai-nav__links {
    display: flex;
    align-items: center;
    gap: 2rem;
  }
}

.ai-nav__link {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ai-nav-text, rgba(239, 229, 212, 0.7));
  transition: color 200ms ease;
}

.ai-nav__link:hover,
.ai-nav__link:focus-visible {
  color: var(--ai-nav-text-hover, rgba(239, 229, 212, 1));
}

/* --- CTA ---------------------------------------------------------------- */

.ai-nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 0.625rem 1.25rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  color: #ffffff;
  white-space: nowrap;
  transition: transform 200ms cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 200ms;
  box-shadow: 0 8px 20px rgba(255, 78, 0, 0.30);
}

.ai-nav__cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 26px rgba(255, 78, 0, 0.40);
}

@media (min-width: 768px) {
  .ai-nav__cta {
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
  }
}

/* Esconde o CTA inline no mobile, exibe só no desktop */
.ai-nav__cta--desktop {
  display: none;
}

@media (min-width: 768px) {
  .ai-nav__cta--desktop {
    display: inline-flex;
  }
}

/* --- Hambúrguer (mobile) ----------------------------------------------- */

.ai-nav__hamburger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  margin: 0;
  background: transparent;
  border: 1px solid var(--ai-nav-border, rgba(255, 255, 255, 0.18));
  border-radius: 0.5rem;
  cursor: pointer;
  position: relative;
  color: var(--ai-nav-text-hover, rgba(239, 229, 212, 1));
  transition: background-color 200ms ease, border-color 200ms ease;
}

.ai-nav__hamburger:hover,
.ai-nav__hamburger:focus-visible {
  background: rgba(255, 255, 255, 0.06);
  outline: none;
}

.ai-nav__hamburger-bar {
  position: absolute;
  left: 50%;
  width: 1.125rem;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transform-origin: center;
  transition: transform 240ms cubic-bezier(0.2, 0.8, 0.2, 1), top 240ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.ai-nav__hamburger-bar:nth-child(1) {
  top: calc(50% - 5px);
  transform: translateX(-50%);
}

.ai-nav__hamburger-bar:nth-child(2) {
  top: calc(50% + 3px);
  transform: translateX(-50%);
}

.ai-nav__hamburger.is-open .ai-nav__hamburger-bar:nth-child(1) {
  top: 50%;
  transform: translateX(-50%) translateY(-1px) rotate(45deg);
}

.ai-nav__hamburger.is-open .ai-nav__hamburger-bar:nth-child(2) {
  top: 50%;
  transform: translateX(-50%) translateY(-1px) rotate(-45deg);
}

@media (min-width: 768px) {
  .ai-nav__hamburger {
    display: none;
  }
}

/* --- Painel mobile ------------------------------------------------------ */

.ai-nav__mobile {
  position: fixed;
  top: var(--ai-nav-height, 72px);
  inset-inline: 0;
  background: rgba(5, 5, 5, 0.96);
  border-bottom: 1px solid var(--ai-nav-border, rgba(255, 255, 255, 0.10));
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  box-shadow: 0 16px 32px -8px rgba(0, 0, 0, 0.5);
  padding: 1rem 1.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: calc(100vh - var(--ai-nav-height, 72px));
  overflow-y: auto;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 220ms ease, transform 220ms ease;
}

@supports not ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  .ai-nav__mobile { background: rgba(5, 5, 5, 1); }
}

.ai-nav__mobile.is-open {
  opacity: 1;
  transform: translateY(0);
}

.ai-nav__mobile[hidden] {
  display: none;
}

.ai-nav__mobile-nav {
  display: flex;
  flex-direction: column;
}

.ai-nav__mobile-link {
  display: block;
  padding: 0.875rem 0.25rem;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ai-nav-text-hover, rgba(239, 229, 212, 1));
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: color 200ms ease, padding-left 200ms ease;
}

.ai-nav__mobile-link:hover,
.ai-nav__mobile-link:focus-visible {
  color: var(--color-brand-orange, #FF4E00);
  padding-left: 0.5rem;
  outline: none;
}

.ai-nav__mobile-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 0.75rem;
  padding: 0.875rem 1.25rem;
  border-radius: 9999px;
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  color: #ffffff;
  white-space: nowrap;
  box-shadow: 0 8px 20px rgba(255, 78, 0, 0.30);
}

@media (min-width: 768px) {
  .ai-nav__mobile,
  .ai-nav__mobile.is-open {
    display: none !important;
  }
}

/* Trava o scroll do body quando o menu mobile está aberto */
body.ai-nav-locked {
  overflow: hidden;
}