/* ============================================================
   components.css — Componentes e micro-interações
   Navegação, botões, cards, certificados, ornamentos,
   divisores, reveals no scroll e estados de foco.
   ============================================================ */

/* ---- Foco visível global (acessibilidade) --------------- */
:focus-visible {
  outline: 2px solid var(--cream);
  outline-offset: 3px;
}

/* ---- Navegação ------------------------------------------ */
.primary-nav__link {
  margin-left: 34px;
  font-size: 0.74rem;
  letter-spacing: var(--ls-nav);
  text-transform: uppercase;
  color: var(--cream);
  opacity: 0.82;
  position: relative;
  transition: opacity var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.primary-nav__link:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 1px;
  background: var(--cream);
  transition: width var(--t-fast) var(--ease);
}
.primary-nav__link:not(.btn):hover,
.primary-nav__link:not(.btn):focus-visible {
  opacity: 1;
}
.primary-nav__link:not(.btn):hover::after,
.primary-nav__link:not(.btn):focus-visible::after {
  width: 100%;
}

/* ---- Botões --------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border-radius: var(--radius);
  letter-spacing: var(--ls-btn);
  text-transform: uppercase;
  white-space: nowrap;
}

/* Variante "fantasma" sobre fundo escuro */
.btn--ghost {
  padding: 17px 46px;
  font-size: 0.82rem;
  color: var(--cream);
  background: transparent;
  border: 1px solid var(--cream);
  transition:
    background var(--t-mid) var(--ease),
    color var(--t-mid) var(--ease),
    letter-spacing var(--t-mid) var(--ease);
}
.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: var(--cream);
  color: var(--st-george);
  letter-spacing: 0.2em;
}

/* Variante sólida (Instagram no CTA) */
.btn--solid {
  padding: 17px 40px;
  font-size: 0.82rem;
  background: var(--cream);
  color: var(--st-george);
  border: 1px solid var(--cream);
  transition: transform var(--t-mid) var(--ease), letter-spacing var(--t-mid) var(--ease);
}
.btn--solid:hover,
.btn--solid:focus-visible {
  transform: translateY(-2px);
  letter-spacing: 0.2em;
}

/* Botões compactos no header */
.btn--nav {
  margin-left: 14px;
  padding: 10px 22px;
  font-size: 0.74rem;
  letter-spacing: var(--ls-nav);
  color: var(--cream);
  border: 1px solid var(--cream);
  opacity: 1;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.btn--nav:hover,
.btn--nav:focus-visible {
  background: var(--cream);
  color: var(--dark-purple);
}
.btn svg {
  width: 1em;
  height: 1em;
  flex: none;
}
.btn--solid svg,
.btn--ghost svg {
  width: 17px;
  height: 17px;
}

/* ---- Botões de ação (hero + CTA) ------------------------ */
.actions {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---- Indicador de scroll -------------------------------- */
.scroll-hint {
  position: absolute;
  bottom: 54px;
  left: 50%;
  transform: translateX(-50%);
  font-size: var(--fs-eyebrow);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--cream);
  opacity: 0.7;
}
.scroll-hint::after {
  content: "";
  display: block;
  width: 1px;
  height: 26px;
  margin: 12px auto 0;
  background: linear-gradient(var(--cream), transparent);
}

/* ---- Eyebrow / kicker + título + régua ornamentada ------ */
.kicker {
  font-size: 0.78rem;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--cream);
  opacity: 0.85;
  margin-bottom: 30px;
}
.kicker::before,
.kicker::after {
  content: var(--fleuron);
  color: var(--cream);
  margin: 0 18px;
  font-size: 0.7rem;
  opacity: 0.9;
}

.section-kicker {
  text-align: center;
  font-size: var(--fs-kicker);
  letter-spacing: var(--ls-kicker);
  text-transform: uppercase;
  color: var(--cream);
  margin-bottom: 22px;
}

.section-title {
  text-align: center;
  font-size: var(--fs-h2);
  letter-spacing: 0.01em;
  line-height: var(--lh-tight);
  margin-bottom: 30px;
}

.rule {
  width: 54px;
  height: 1px;
  background: var(--cream);
  margin: 0 auto 40px;
  position: relative;
}
.rule::before {
  content: var(--fleuron);
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  padding: 0 10px;
  color: var(--cream);
  font-size: 0.7rem;
  /* Herda o fundo da seção para "cortar" a linha sob o ornamento */
  background: inherit;
}
/* Cada seção informa à régua a sua cor de fundo */
.about .rule::before { background: var(--dark-purple); }
.courses .rule::before { background: var(--dusk); }
.cambridge .rule::before { background: var(--st-george); }
.method .rule::before { background: var(--dark-purple-deep); }

.lead {
  text-align: center;
  max-width: 660px;
  margin: 0 auto;
  font-size: var(--fs-lead);
  color: rgba(245, 235, 216, 0.9);
}

/* ---- Molduras ornamentais (hero + CTA) ------------------ */
.frame {
  position: absolute;
  pointer-events: none;
  border: 1px solid var(--border-mid);
  z-index: 0;
}
.frame--hero {
  top: 96px;
  left: 34px;
  right: 34px;
  bottom: 34px;
}
.frame--cta {
  inset: 34px;
  border-color: var(--border-soft);
}
/* Cantos em "L" — assinatura heráldica da marca */
.frame--hero::before,
.frame--hero::after {
  content: "";
  position: absolute;
  width: 30px;
  height: 30px;
  border: 1px solid var(--cream);
}
.frame--hero::before {
  top: -1px;
  left: -1px;
  border-right: none;
  border-bottom: none;
}
.frame--hero::after {
  bottom: -1px;
  right: -1px;
  border-left: none;
  border-top: none;
}

/* ---- Grid de cursos ------------------------------------- */
.courses__grid {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  margin-top: 64px;
  justify-content: center;
}
.course-card {
  flex: 0 1 calc(33.333% - 20px);
  min-width: 260px;
  background: var(--surface-card);
  border: 1px solid var(--border-soft);
  padding: 40px 30px;
  text-align: center;
  transition:
    transform var(--t-mid) var(--ease),
    border-color var(--t-mid) var(--ease),
    background var(--t-mid) var(--ease);
}
.course-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-strong);
  background: var(--surface-card-hover);
}
.course-card__level {
  font-size: var(--fs-eyebrow);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cream);
  margin-bottom: 16px;
}
.course-card__title {
  font-size: 1.5rem;
  margin-bottom: 10px;
  color: var(--cream);
}
.course-card__tagline {
  font-size: 1rem;
  font-style: italic;
  color: var(--cream);
  opacity: 0.95;
  margin-bottom: 16px;
}
.course-card__desc {
  font-size: var(--fs-small);
  opacity: 0.82;
  line-height: var(--lh-base);
}

/* ---- Níveis de certificação Cambridge ------------------- */
.cert-levels {
  display: flex;
  gap: 30px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 60px;
}
.cert-level {
  flex: 1;
  min-width: 240px;
  max-width: 360px;
  padding: 40px 34px;
  text-align: center;
  border: 1px solid var(--border-mid);
  transition: border-color var(--t-mid) var(--ease), background var(--t-mid) var(--ease);
}
.cert-level:hover {
  border-color: var(--border-strong);
  background: var(--surface-tint);
}
.cert-level__code {
  font-size: 2.4rem;
  letter-spacing: 0.06em;
  color: var(--cream);
  margin-bottom: 6px;
}
.cert-level__cefr {
  font-size: 0.72rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--cream);
  opacity: 0.7;
  margin-bottom: 18px;
}
.cert-level__title {
  font-size: 1.3rem;
  margin-bottom: 12px;
}
.cert-level__desc {
  font-size: var(--fs-small);
  opacity: 0.85;
  line-height: var(--lh-base);
}

/* ---- Diferenciais / Método ------------------------------ */
.method__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 48px;
  text-align: center;
  margin-top: 64px;
}
.method__num {
  font-size: 2.8rem;
  letter-spacing: 0.05em;
  color: var(--cream);
  margin-bottom: 18px;
}
.method__title {
  font-size: 1.25rem;
  margin-bottom: 12px;
}
.method__desc {
  font-size: var(--fs-small);
  opacity: 0.82;
  line-height: 1.85;
}

/* ---- Rodapé: navegação, endereço, copyright ------------- */
.footer-nav {
  margin-bottom: 28px;
}
.footer-nav__link {
  margin: 0 18px;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.8;
  transition: color var(--t-fast) var(--ease), opacity var(--t-fast) var(--ease);
}
.footer-nav__link:hover,
.footer-nav__link:focus-visible {
  opacity: 1;
  color: var(--cream);
}
.footer__address {
  font-size: 0.86rem;
  opacity: 0.7;
  margin-bottom: 8px;
  font-style: normal;
}
.footer__copy {
  margin-top: 20px;
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  opacity: 0.5;
}

/* ---- Botão hambúrguer (mobile) -------------------------- */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  position: relative;
  z-index: calc(var(--z-header) + 1);
}
.nav-toggle__bar,
.nav-toggle__bar::before,
.nav-toggle__bar::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 24px;
  height: 1.5px;
  background: var(--cream);
  transform: translateX(-50%);
  transition: transform var(--t-fast) var(--ease), opacity var(--t-fast) var(--ease);
}
.nav-toggle__bar {
  top: 50%;
  transform: translate(-50%, -50%);
}
.nav-toggle__bar::before { top: -7px; }
.nav-toggle__bar::after { top: 7px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar {
  background: transparent;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::before {
  top: 0;
  transform: translateX(-50%) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::after {
  top: 0;
  transform: translateX(-50%) rotate(-45deg);
}

/* ---- Reveal no scroll ----------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--t-slow) var(--ease), transform var(--t-slow) var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
.reveal--d1 { transition-delay: 0.12s; }
.reveal--d2 { transition-delay: 0.24s; }
.reveal--d3 { transition-delay: 0.36s; }

/* Sem JS ou com movimento reduzido: conteúdo sempre visível */
.no-js .reveal {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}