/* ==========================================================================
   OPENING SEQUENCE — página 1 (fusão de rupturas + fechamento)
   Três zonas dentro do slide: topo (frase de abertura), centro (rupture-cycle
   -> finale + CTA) e rodapé (pilha de 3 linhas). Avança por estágios
   (data-stage no container), controlados por opening-sequence.js.
   ========================================================================== */

.opening-sequence {
  position: absolute;
  inset: 0;
  padding: calc(var(--chrome-h) + 28px) var(--pad-x) 64px;
  --line-slot: 64px;
}
@media (max-width: 640px) {
  .opening-sequence { --line-slot: 84px; }
}

/* ---------- Zona topo ---------- */
.opening-sequence__top {
  position: absolute;
  left: var(--pad-x); right: var(--pad-x);
  top: 50%;
  transform: translateY(-50%);
  text-align: center;
  opacity: 1;
  transition: top .9s var(--ease-out), transform .9s var(--ease-out), opacity .9s var(--ease-out);
}
.opening-sequence__intro {
  font-size: clamp(1.7rem, 1.2rem + 2.6vw, 3rem);
  font-weight: 300;
  line-height: 1.35;
  color: var(--on-dark-dim);
  transition: font-size .9s var(--ease-out);
}
.opening-sequence__intro-line {
  display: block;
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
}
.opening-sequence__intro-line.is-in { opacity: 1; transform: translateY(0); }

.opening-sequence[data-stage="0"] .opening-sequence__top { top: 50%; transform: translateY(-50%); }
.opening-sequence:not([data-stage="0"]) .opening-sequence__top {
  top: calc(var(--chrome-h) + 28px);
  transform: translateY(0);
}
.opening-sequence:not([data-stage="0"]) .opening-sequence__intro { font-size: clamp(.95rem, .85rem + .5vw, 1.15rem); }

/* Estágio 5 em diante: a frase de abertura, lá no topo, sai de cena junto
   com o rodapé, dando toda a atenção ao finale. */
.opening-sequence[data-stage="5"] .opening-sequence__top,
.opening-sequence[data-stage="6"] .opening-sequence__top {
  opacity: 0;
  pointer-events: none;
}

/* ---------- Zona centro (rupture-cycle -> finale + CTA) ---------- */
.opening-sequence__center {
  position: absolute;
  left: var(--pad-x); right: var(--pad-x);
  top: 50%;
  transform: translateY(-50%);
  text-align: center;
  transition: transform .9s var(--ease-out);
}
.opening-sequence__center .rupture-cycle {
  opacity: 0;
  transform: scale(.8);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
  pointer-events: none;
}
.opening-sequence[data-stage="1"] .opening-sequence__center .rupture-cycle,
.opening-sequence[data-stage="2"] .opening-sequence__center .rupture-cycle,
.opening-sequence[data-stage="3"] .opening-sequence__center .rupture-cycle,
.opening-sequence[data-stage="4"] .opening-sequence__center .rupture-cycle {
  opacity: 1;
  transform: scale(1);
}
/* Do estágio 5 em diante, a zona central sobe um pouco: evita que o finale
   e o CTA encostem na pilha do rodapé enquanto ela ainda está visível
   (ela só some de fato no estado assentado, alguns instantes depois). */
.opening-sequence[data-stage="5"] .opening-sequence__center,
.opening-sequence[data-stage="6"] .opening-sequence__center,
.opening-sequence.is-settled .opening-sequence__center {
  transform: translateY(calc(-50% - 70px));
}

.opening-sequence__finale {
  opacity: 0;
  transform: scale(.94);
  transition: opacity 1.4s var(--ease-out), transform 1.4s var(--ease-out);
}
.opening-sequence__finale-line {
  display: block;
  font-size: clamp(2rem, 1.3rem + 3.4vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--white);
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 1.1s var(--ease-out), transform 1.1s var(--ease-out);
}
.opening-sequence__cta {
  margin-top: 36px;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 1s var(--ease-out), transform 1s var(--ease-out);
  pointer-events: none;
}
.opening-sequence[data-stage="5"] .opening-sequence__finale,
.opening-sequence[data-stage="6"] .opening-sequence__finale,
.opening-sequence.is-settled .opening-sequence__finale { opacity: 1; transform: scale(1); }
.opening-sequence[data-stage="5"] .opening-sequence__finale-line,
.opening-sequence[data-stage="6"] .opening-sequence__finale-line,
.opening-sequence.is-settled .opening-sequence__finale-line { opacity: 1; transform: translateY(0); }
.opening-sequence[data-stage="5"] .opening-sequence__finale-line:nth-child(2),
.opening-sequence[data-stage="6"] .opening-sequence__finale-line:nth-child(2),
.opening-sequence.is-settled .opening-sequence__finale-line:nth-child(2) { transition-delay: .5s; }
/* O CTA não segue o estágio — ganha a classe is-in via JS, 2s depois do
   finale terminar de aparecer (ver opening-sequence.js). */
.opening-sequence__cta.is-in,
.opening-sequence.is-settled .opening-sequence__cta {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* ---------- Zona rodapé (pilha de 3 linhas) ---------- */
.opening-sequence__bottom {
  position: absolute;
  left: var(--pad-x); right: var(--pad-x);
  bottom: calc(var(--line-slot) * .9 + 108px);
  height: calc(var(--line-slot) * 1.4);
  opacity: 1;
  transition: opacity .9s var(--ease-out);
}
.opening-sequence[data-stage="5"] .opening-sequence__bottom,
.opening-sequence[data-stage="6"] .opening-sequence__bottom {
  opacity: 0;
  pointer-events: none;
}
.opening-sequence__bottom-line {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  margin: 0 auto;
  max-width: 40ch;
  text-align: center;
  font-size: clamp(1.15rem, .95rem + 1.4vw, 1.7rem);
  font-weight: 400;
  color: var(--on-dark-dim);
  opacity: 0;
  transform: translateY(20px);
  transition: transform .7s var(--ease-out), opacity .7s var(--ease-out);
}
.opening-sequence__bottom-line.is-shown { opacity: 1; transform: translateY(0); }
.opening-sequence__bottom-line.is-slot-1 { transform: translateY(calc(-1 * var(--line-slot))); }
.opening-sequence__bottom-line.is-slot-2 { transform: translateY(calc(-2 * var(--line-slot))); }
/* "...sendo médico" fecha a frase: um pouco maior, mais forte, e com uma
   entrada própria — zoom-in suave, sem o "salto" das duas linhas anteriores. */
#openLine3 {
  font-size: clamp(1.35rem, 1.1rem + 1.7vw, 2rem);
  font-weight: 700;
  color: var(--white);
}
#openLine3.is-shown {
  animation: openLine3In 1.1s var(--ease-out) both;
}
@keyframes openLine3In {
  0%   { opacity: 0; transform: translateY(10px) scale(.9); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

/* ---------- Botão Continue ---------- */
.continue-btn {
  position: absolute;
  left: 50%;
  top: 0; /* sobrescrito via JS a cada estágio, com a posição real medida */
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--r-full);
  background: rgba(234,240,246,.08);
  border: 1px solid rgba(234,240,246,.2);
  color: var(--on-dark);
  font-size: .9rem;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity .5s var(--ease-out), top .5s var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.continue-btn:hover { background: rgba(234,240,246,.16); }
.continue-btn svg { width: 15px; height: 15px; animation: continueBob 1.6s ease-in-out infinite; }
@keyframes continueBob {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(3px); }
}
.continue-btn.is-visible { opacity: 1; pointer-events: auto; }

/* Primeira aparição apenas: entrada mais lenta e com leve subida, em vez do
   pop rápido padrão (pedido explícito — só essa vez, as próximas continuam
   rápidas). */
.continue-btn.continue-btn--soft {
  transform: translateX(-50%) translateY(10px);
  transition: opacity 1.1s var(--ease-out), transform 1.1s var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.continue-btn.continue-btn--soft.is-visible { transform: translateX(-50%) translateY(0); }

/* ---------- Botão Pular (substitui chrome-nav/contador/menu só na página 1) ---------- */
.skip-btn {
  position: fixed;
  right: var(--pad-x-tight);
  bottom: 28px;
  z-index: 40;
  display: none;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 18px;
  border-radius: var(--r-full);
  background: rgba(234,240,246,.06);
  border: 1px solid rgba(234,240,246,.16);
  color: var(--on-dark);
  font-size: .85rem;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  transition: background var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.skip-btn:hover { background: rgba(234,240,246,.14); transform: translateY(-1px); }
.skip-btn svg { width: 15px; height: 15px; transform: rotate(-90deg); }
.skip-btn.is-visible { display: inline-flex; }

/* ---------- "Começar agora" — persistente, páginas 3 a 14 ----------
   Mesmo formato/tamanho do "Pular", mas com as duas variantes de tema que o
   resto do chrome já usa (claro por padrão, escuro via .is-on-dark), porque
   ao contrário do "Pular" (só existe na página 1, sempre escura) esse botão
   precisa funcionar em slide clara, escura ou tintada. */
.persistent-cta {
  position: fixed;
  right: calc(var(--pad-x-tight) + 96px);
  bottom: 28px;
  z-index: 40;
  display: none;
  align-items: center;
  height: 38px;
  padding: 0 18px;
  border-radius: var(--r-full);
  background: var(--white);
  border: 1px solid var(--gray-200);
  color: var(--gray-700);
  font-size: .85rem;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  transition: background var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.persistent-cta:hover { background: var(--gray-50); transform: translateY(-1px); }
.persistent-cta.is-visible { display: inline-flex; }
.persistent-cta.is-on-dark {
  background: rgba(234,240,246,.06);
  border-color: rgba(234,240,246,.16);
  color: var(--on-dark);
}
.persistent-cta.is-on-dark:hover { background: rgba(234,240,246,.14); }
@media (max-width: 640px) {
  .persistent-cta span { display: none; }
  .persistent-cta { padding: 0; width: 38px; justify-content: center; right: calc(var(--pad-x-tight) + 96px); }
}

/* body.is-page-one: chrome-nav, contador e menu somem — os três são IRMÃOS
   do chrome-top no HTML, por isso a classe vai no body, não no chrome-top. */
body.is-page-one .chrome-nav,
body.is-page-one .chrome-counter,
body.is-page-one #menuToggle {
  display: none !important;
}

/* ---------- Estado assentado (reduced-motion OU já visto na sessão) ----------
   Só o grand finale + CTA. Nada de topo, rupture-cycle ou pilha do rodapé. */
.opening-sequence.is-settled .opening-sequence__top,
.opening-sequence.is-settled .opening-sequence__bottom,
.opening-sequence.is-settled .continue-btn {
  display: none;
}
.opening-sequence.is-settled .opening-sequence__center { transition: none; }
.opening-sequence.is-settled .opening-sequence__finale,
.opening-sequence.is-settled .opening-sequence__finale-line,
.opening-sequence.is-settled .opening-sequence__cta {
  transition: none;
}

@media (prefers-reduced-motion: reduce) {
  .opening-sequence__top,
  .opening-sequence__intro,
  .opening-sequence__intro-line,
  .opening-sequence__center .rupture-cycle,
  .opening-sequence__finale,
  .opening-sequence__finale-line,
  .opening-sequence__cta,
  .opening-sequence__bottom-line,
  .continue-btn { transition: none !important; animation: none !important; }
}