/* ============================================================
   main.css — Tayana Domiciano
   Depende: tokens.css, components.css
   Contém: scroll reveal, nav mobile / hamburger
   ============================================================ */

/* ── Scroll reveal ───────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity   var(--motion-slower) var(--ease-out),
    transform var(--motion-slower) var(--ease-out);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ── Nav: hamburger button ───────────────────────────────── */
.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  border-radius: var(--border-radius-sm);
  flex-shrink: 0;
  color: var(--color-text-primary);
}

.nav__hamburger:focus-visible {
  outline: 2px solid var(--color-brand-primary);
  outline-offset: 2px;
}

.nav__hamburger-bar {
  display: block;
  width: 22px;
  height: 1.5px;
  background: currentColor;
  border-radius: 2px;
  transition:
    transform var(--motion-normal) var(--ease-in-out),
    opacity   var(--motion-fast)   var(--ease-in-out);
}

/* Estado X (menu aberto) */
.nav--mobile-open .nav__hamburger-bar:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav--mobile-open .nav__hamburger-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav--mobile-open .nav__hamburger-bar:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

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

/* ── Nav: mobile menu ────────────────────────────────────── */
.nav__mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  flex-direction: column;
  gap: var(--space-6);
  background: var(--color-surface-default);
  border-top: var(--border-width-hairline) solid var(--color-border-subtle);
  padding: var(--space-6) var(--page-padding) var(--space-8);
  box-shadow: var(--shadow-sm);
  z-index: 99;
}

.nav__mobile-menu.is-open {
  display: flex;
  animation: mobile-menu-in var(--motion-normal) var(--ease-out) both;
}

@keyframes mobile-menu-in {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0);    }
}

@media (prefers-reduced-motion: reduce) {
  .nav__mobile-menu.is-open {
    animation: none;
  }
}

.nav__mobile-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  border-top: var(--border-width-hairline) solid var(--color-border-subtle);
}

.nav__mobile-link {
  display: block;
  font-family: var(--font-family);
  font-size: var(--type-body-md-size);
  font-weight: 300;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: var(--space-4) 0;
  border-bottom: var(--border-width-hairline) solid var(--color-border-subtle);
  transition: color var(--motion-fast) var(--ease-in-out);
}

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

/* ── Overflow horizontal global ──────────────────────────── */
body {
  overflow-x: hidden;
}

/* ── Responsive: ativar hamburger em mobile ──────────────── */
@media (max-width: 767px) {
  .nav__hamburger {
    display: flex;
  }

  /* Ocultar links e ações desktop no mobile */
  .nav__links {
    display: none !important;
  }

  .nav__actions {
    display: none;
  }
}

/* Ações do menu mobile: CTA à esquerda, Instagram à direita */
.nav__mobile-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Garantir que o menu mobile nunca apareça no desktop */
@media (min-width: 768px) {
  .nav__mobile-menu {
    display: none !important;
  }
}