/* =====================================================================
   GUIA COMPLETO DO MARKETING DIGITAL — Landing Page
   Autor: Odair Roberto
   Stack: HTML + CSS puro + JS puro (sem dependências)
   Padrão: Mobile-first, Dark Theme, AIDA framework
   ===================================================================== */

/* ===================== 1. VARIÁVEIS / DESIGN TOKENS ===================== */
:root {
  /* Paleta — Deep Blues */
  --bg-deep:   #050d1f;
  --bg-dark:   #0a1628;
  --bg-mid:    #0f2444;
  --bg-card:   #122c52;
  --bg-soft:   #163663;

  /* Acentos — Neon Cyan */
  --cyan:        #00d4ff;
  --cyan-soft:   #22d3ee;
  --cyan-dim:    #0891b2;

  /* Acentos — Gold */
  --gold:        #fbbf24;
  --gold-soft:   #f59e0b;
  --gold-deep:   #d97706;

  /* Texto */
  --white:    #ffffff;
  --gray-50:  #f8fafc;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;

  /* Tipografia */
  --font: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

  /* Layout */
  --container: 1200px;
  --radius-sm: 8px;
  --radius:    16px;
  --radius-lg: 24px;

  /* Efeitos */
  --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.35);
  --shadow-gold: 0 0 40px rgba(251, 191, 36, 0.35);

  /* Transições */
  --t-fast: 150ms ease;
  --t:      250ms cubic-bezier(.4, 0, .2, 1);
  --t-slow: 500ms cubic-bezier(.4, 0, .2, 1);
}

/* ===================== 2. RESET & BASE ===================== */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-200);
  background: var(--bg-deep);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; height: auto; }
a   { color: inherit; text-decoration: none; }
ul  { list-style: none; padding: 0; margin: 0; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }

h1, h2, h3, h4 {
  margin: 0;
  color: var(--white);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

p { margin: 0; }

/* ===================== 3. UTILITÁRIOS ===================== */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section {
  padding: 4rem 0;
  position: relative;
}

.section__header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3rem;
}

.section__eyebrow {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: 999px;
  color: var(--cyan);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  margin-bottom: 0.75rem;
  background: linear-gradient(180deg, var(--white) 0%, var(--gray-300) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section__subtitle {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--gray-400);
}

/* ===================== 4. BOTÕES (CTA) ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform var(--t), box-shadow var(--t), background var(--t);
  white-space: nowrap;
  text-align: center;
}

.btn--sm  { padding: 0.6rem 1.25rem; font-size: 0.85rem; }
.btn--lg  { padding: 1.125rem 2rem;  font-size: 1rem; }
.btn--xl  { padding: 1.35rem 2.5rem; font-size: 1.1rem; }

.btn--primary {
  color: var(--bg-deep);
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-soft) 100%);
  box-shadow: 0 8px 24px rgba(251, 191, 36, 0.35), inset 0 1px 0 rgba(255,255,255,0.4);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(251, 191, 36, 0.5), inset 0 1px 0 rgba(255,255,255,0.4);
}

.btn--ghost {
  color: var(--white);
  background: transparent;
  border: 1px solid rgba(0, 212, 255, 0.4);
}
.btn--ghost:hover {
  background: rgba(0, 212, 255, 0.1);
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ===================== 5. HEADER / NAV ===================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0.75rem 0;
  background: rgba(5, 13, 31, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
}
.brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--bg-deep);
  background: linear-gradient(135deg, var(--cyan) 0%, var(--gold) 100%);
  border-radius: var(--radius-sm);
}
.brand__name {
  font-weight: 700;
  color: var(--white);
  font-size: 0.95rem;
}

.site-nav {
  display: none;
  gap: 1.75rem;
  font-size: 0.9rem;
  font-weight: 500;
}
.site-nav a {
  color: var(--gray-300);
  transition: color var(--t-fast);
}
.site-nav a:hover { color: var(--cyan); }

.site-header .btn { display: none; }

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  padding: 8px;
}
.nav-toggle span {
  width: 22px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform var(--t), opacity var(--t);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.site-nav.is-open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  padding: 1.25rem;
  gap: 1rem;
  background: rgba(5, 13, 31, 0.98);
  border-bottom: 1px solid rgba(0, 212, 255, 0.15);
}

/* ===================== 6. HERO ===================== */
.hero {
  position: relative;
  padding: 7rem 0 4rem;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(0, 212, 255, 0.18) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 100% 50%, rgba(251, 191, 36, 0.08) 0%, transparent 50%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-dark) 100%);
  z-index: -1;
}
.hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 0%, transparent 70%);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: 999px;
  color: var(--cyan);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.hero__badge-dot {
  width: 6px; height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--cyan);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(1.4); }
}

.hero__title {
  margin: 1.25rem 0 1rem;
  font-size: clamp(2.1rem, 6vw, 4rem);
  font-weight: 900;
  line-height: 1.05;
}
.hero__title-pre {
  display: block;
  font-weight: 500;
  font-size: 0.55em;
  color: var(--gray-300);
  letter-spacing: 0;
}
.hero__title-accent {
  display: block;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--gold) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero__title-glow {
  display: block;
  color: var(--white);
  text-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

.hero__lead {
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  color: var(--gray-300);
  margin-bottom: 2rem;
  max-width: 540px;
}
.hero__lead strong {
  color: var(--gold);
  font-weight: 700;
}
.hero__lead em {
  color: var(--cyan);
  font-style: normal;
  font-weight: 600;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.85rem;
  color: var(--gray-400);
}
.hero__trust li {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.hero__trust span {
  color: var(--cyan);
  font-weight: 800;
}

.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero__visual-glow {
  position: absolute;
  inset: -10%;
  background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.4) 0%, transparent 60%);
  filter: blur(40px);
  z-index: -1;
}
.hero__ebook {
  width: 100%;
  max-width: 420px;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.5)) drop-shadow(0 0 30px rgba(0, 212, 255, 0.3));
  border-radius: var(--radius);
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}

/* ===================== 6.5. MÉTODO ROTA (Framework callout no hero) ===================== */
.metodoRota {
  /* Espaçamento entre o hero__lead e este título */
  margin: 1.75rem 0 0.5rem;
  padding-left: 0.85rem;
  border-left: 3px solid var(--gold);

  font-size: clamp(1.05rem, 2.4vw, 1.3rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--cyan);
}

.metodoRota strong {
  /* "ROTA" em destaque gradient — ancora visual do framework */
  background: linear-gradient(90deg, var(--cyan) 0%, var(--gold) 100%);
  -webkit-background-clip: text;
          background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.metodoRota__descricao {
  /* Espaçamento entre o título do método e o bloco de detalhe,
     e entre este bloco e os CTAs logo abaixo */
  margin: 0 0 1.75rem;
  padding: 1.1rem 1.25rem;

  background: linear-gradient(135deg,
    rgba(0, 212, 255, 0.07) 0%,
    rgba(251, 191, 36, 0.05) 100%);
  border: 1px solid rgba(0, 212, 255, 0.18);
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);

  font-size: clamp(0.9rem, 1.8vw, 1rem);
  line-height: 1.9;
  color: var(--gray-200);
}

/* Cada letra (R/O/T/A) vira um badge circular — leitura rápida */
.metodoRota__descricao strong {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.55em;
  height: 1.55em;
  margin-right: 0.5rem;

  background: linear-gradient(135deg, var(--cyan) 0%, var(--gold) 100%);
  color: var(--bg-deep);
  font-weight: 800;
  font-size: 0.85em;
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.35);
  vertical-align: -0.15em;
}

/* ===================== 6.6. CTA OFFER (Bloco de preço antes dos botões) ===================== */
/* Bloco base — usado tanto no hero quanto no CTA final */
.cta-offer {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;

  margin: 0 0 1.25rem;
  padding: 0.85rem 1.25rem;

  background: linear-gradient(135deg,
    rgba(251, 191, 36, 0.12) 0%,
    rgba(0, 212, 255, 0.08) 100%);
  border: 1px solid rgba(251, 191, 36, 0.4);
  border-radius: var(--radius);

  text-align: center;
  position: relative;
  overflow: hidden;
}

/* Brilho de fundo, sutil, dando sensação de "destaque" */
.cta-offer::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%,
    rgba(251, 191, 36, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

/* Badge de urgência (relógio + label) */
.cta-offer__badge {
  display: inline-block;
  padding: 0.25rem 0.7rem;
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.5);
  border-radius: 999px;
  color: #fca5a5;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  animation: pulseBadge 2.4s ease-in-out infinite;
}

@keyframes pulseBadge {
  0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
  50%      { box-shadow: 0 0 0 8px rgba(239, 68, 68, 0); }
}

/* Preço antigo riscado */
.cta-offer__old {
  color: var(--gray-400);
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  font-weight: 500;
}
.cta-offer__old s {
  text-decoration: line-through;
  text-decoration-color: rgba(239, 68, 68, 0.7);
  text-decoration-thickness: 2px;
}

/* Label pequeno entre o preço antigo e o novo ("por apenas") */
.cta-offer__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
}

/* Preço novo — protagonista visual */
.cta-offer__new {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-soft) 100%);
  -webkit-background-clip: text;
          background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  text-shadow: 0 0 30px rgba(251, 191, 36, 0.3);
}

/* Linha horizontal usada só na versão final (preço + seta + preço) */
.cta-offer__row {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
  justify-content: center;
}

.cta-offer__arrow {
  font-size: 1.5rem;
  color: var(--cyan);
  font-weight: 700;
}

/* Hint de pagamento — só aparece na versão final */
.cta-offer__hint {
  font-size: 0.8rem;
  color: var(--gray-400);
  font-weight: 500;
}

/* ----- Variação: HERO (compacta, ao lado do botão principal) ----- */
.cta-offer--hero {
  /* No hero, layout em linha pra economizar espaço vertical */
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem 0.85rem;
  padding: 0.75rem 1.1rem;
  margin-bottom: 1.25rem;
}
.cta-offer--hero .cta-offer__badge { order: -1; width: 100%; text-align: center; }
.cta-offer--hero .cta-offer__label  { display: none; }

/* ----- Variação: FINAL (grande, peso de fechamento) ----- */
.cta-offer--final {
  padding: 1.5rem 2rem;
  margin-bottom: 1.75rem;
  border-color: rgba(251, 191, 36, 0.6);
  box-shadow: 0 12px 40px rgba(251, 191, 36, 0.15), inset 0 1px 0 rgba(255,255,255,0.05);
}
.cta-offer--final .cta-offer__new {
  /* ainda maior no CTA final */
  font-size: clamp(2.5rem, 7vw, 4rem);
}
.cta-offer--final .cta-offer__old {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
}

/* ===================== 7. AUDIENCE / PARA QUEM É ===================== */
.audience {
  background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-deep) 100%);
}

.audience__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.audience__card {
  position: relative;
  padding: 2rem 1.75rem;
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-mid) 100%);
  border: 1px solid rgba(0, 212, 255, 0.15);
  border-radius: var(--radius);
  transition: transform var(--t), border-color var(--t), box-shadow var(--t);
}
.audience__card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  padding: 1px;
  background: linear-gradient(135deg, var(--cyan) 0%, transparent 50%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--t);
}
.audience__card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 212, 255, 0.4);
  box-shadow: var(--shadow-glow);
}
.audience__card:hover::before { opacity: 1; }

.audience__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px; height: 56px;
  margin-bottom: 1.25rem;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.2) 0%, rgba(251, 191, 36, 0.2) 100%);
  color: var(--cyan);
}
.audience__icon svg { width: 28px; height: 28px; }

.audience__card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--white);
}
.audience__card p { color: var(--gray-300); font-size: 0.95rem; }
.audience__card strong { color: var(--gold); font-weight: 600; }

/* ===================== 8. PROFISSÕES (GRID) ===================== */
.professions {
  background: var(--bg-deep);
  position: relative;
}

.professions__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.professions__card {
  padding: 1.5rem 1rem;
  text-align: center;
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius);
  transition: transform var(--t), border-color var(--t), background var(--t);
}
.professions__card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-soft) 100%);
  box-shadow: 0 8px 24px rgba(0, 212, 255, 0.2);
}

.professions__icon {
  font-size: 2.25rem;
  margin-bottom: 0.65rem;
  filter: drop-shadow(0 0 8px rgba(0, 212, 255, 0.4));
}
.professions__card h3 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.professions__note {
  margin-top: 2rem;
  text-align: center;
  font-size: 1.05rem;
  color: var(--gray-300);
}
.professions__note strong { color: var(--gold); }

/* ===================== 9. FEATURES / VOCÊ VAI ENCONTRAR ===================== */
.features {
  background: linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-dark) 100%);
}

.features__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  max-width: 880px;
  margin: 0 auto;
}

.features__item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.5rem;
  background: linear-gradient(135deg, rgba(18, 44, 82, 0.5) 0%, rgba(15, 36, 68, 0.5) 100%);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  transition: transform var(--t), border-color var(--t), background var(--t);
}
.features__item:hover {
  transform: translateX(4px);
  border-color: rgba(251, 191, 36, 0.4);
  background: linear-gradient(135deg, rgba(18, 44, 82, 0.8) 0%, rgba(15, 36, 68, 0.8) 100%);
}

.features__check {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--cyan-dim) 100%);
  color: var(--bg-deep);
  font-weight: 900;
  font-size: 1rem;
  box-shadow: 0 0 16px rgba(0, 212, 255, 0.4);
}

.features__item h3 {
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
  color: var(--white);
}
.features__item p {
  font-size: 0.9rem;
  color: var(--gray-400);
}

/* ===================== 10. AUTHOR / SOBRE O AUTOR ===================== */
.author {
  background: var(--bg-deep);
  position: relative;
}

.author__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

.author__visual {
  position: relative;
  max-width: 360px;
  margin: 0 auto;
  width: 100%;
}
.author__visual-glow {
  position: absolute;
  inset: -10%;
  background: radial-gradient(ellipse at center, rgba(251, 191, 36, 0.25) 0%, transparent 60%);
  filter: blur(30px);
  z-index: -1;
}
.author__photo {
  width: 100%;
  border-radius: var(--radius-lg);
  border: 2px solid rgba(0, 212, 255, 0.3);
  box-shadow: var(--shadow-card), 0 0 40px rgba(0, 212, 255, 0.2);
}
.author__stamp {
  position: absolute;
  bottom: -1rem;
  right: -1rem;
  width: 110px; height: 110px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-soft) 100%);
  color: var(--bg-deep);
  font-weight: 900;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  line-height: 1.1;
  box-shadow: var(--shadow-gold);
  transform: rotate(-8deg);
}

.author__content { max-width: 600px; }
.author__name {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin: 0.5rem 0 0.25rem;
  background: linear-gradient(90deg, var(--white) 0%, var(--cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.author__role {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  margin-bottom: 1.5rem;
  background: rgba(0, 212, 255, 0.1);
  border-left: 3px solid var(--cyan);
  color: var(--cyan);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.author__bio {
  font-size: 1rem;
  color: var(--gray-300);
  margin-bottom: 1rem;
  line-height: 1.7;
}
.author__bio strong { color: var(--gold); font-weight: 600; }

.author__pillars {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.author__pillars li {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1rem;
  background: rgba(18, 44, 82, 0.5);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--gold);
  font-size: 0.92rem;
  color: var(--gray-200);
}
.author__pillars-icon {
  flex-shrink: 0;
  width: 28px; height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(251, 191, 36, 0.15);
  color: var(--gold);
  font-size: 1.1rem;
  font-weight: 700;
}
.author__pillars strong { color: var(--white); font-weight: 700; }

/* ===================== 11. CTA FINAL ===================== */
.cta-final {
  position: relative;
  padding: 5rem 0;
  text-align: center;
  overflow: hidden;
}
.cta-final__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 50% 50%, rgba(251, 191, 36, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 50% 100%, rgba(0, 212, 255, 0.18) 0%, transparent 60%),
    linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-deep) 100%);
  z-index: -1;
}

.cta-final__inner {
  max-width: 760px;
  margin: 0 auto;
}

.cta-final__title {
  font-size: clamp(1.75rem, 5vw, 3rem);
  font-weight: 900;
  margin: 1rem 0 1.25rem;
  line-height: 1.15;
  color: var(--white);
}
.cta-final__title-accent { color: var(--cyan); }
.cta-final__title-glow {
  background: linear-gradient(90deg, var(--gold) 0%, var(--gold-soft) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 40px rgba(251, 191, 36, 0.5);
}

.cta-final__lead {
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  color: var(--gray-300);
  margin-bottom: 2.5rem;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.cta-final .btn {
  margin-bottom: 1.5rem;
}

.cta-final__note {
  font-size: 0.85rem;
  color: var(--gray-400);
  margin-top: 1rem;
}

/* ===================== 12. FOOTER ===================== */
.site-footer {
  padding: 2rem 0;
  background: var(--bg-dark);
  border-top: 1px solid rgba(0, 212, 255, 0.1);
}
.site-footer__inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  text-align: center;
}
.site-footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}
.site-footer__brand strong {
  display: block;
  color: var(--white);
  font-size: 0.95rem;
}
.site-footer__brand small {
  display: block;
  color: var(--cyan);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.site-footer__copy {
  font-size: 0.85rem;
  color: var(--gray-500);
}

/* ===================== 13. ANIMAÇÕES DE SCROLL ===================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms cubic-bezier(.4, 0, .2, 1);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ===================== 14. RESPONSIVO (BREAKPOINTS) ===================== */
/* Tablet: ≥ 640px */
@media (min-width: 640px) {
  .container { padding: 0 2rem; }
  .section { padding: 5rem 0; }
  .hero { padding: 8rem 0 5rem; }

  .audience__grid  { grid-template-columns: repeat(2, 1fr); }
  .professions__grid { grid-template-columns: repeat(3, 1fr); }
  .features__list  { grid-template-columns: repeat(2, 1fr); }

  .hero__ebook { max-width: 480px; }
}

/* Tablet grande / Notebook: ≥ 900px */
@media (min-width: 900px) {
  .site-nav { display: flex; }
  .site-header .btn { display: inline-flex; }
  .nav-toggle { display: none; }

  .hero__grid { grid-template-columns: 1.1fr 1fr; gap: 4rem; }
  .professions__grid { grid-template-columns: repeat(4, 1fr); }

  .author__grid { grid-template-columns: 0.85fr 1.15fr; gap: 4rem; }
  .author__visual { max-width: 420px; margin: 0; }

  .cta-final { padding: 6rem 0; }
}

/* Desktop: ≥ 1200px */
@media (min-width: 1200px) {
  .section { padding: 6rem 0; }
  .hero { padding: 9rem 0 6rem; }
  .hero__ebook { max-width: 520px; }

  .audience__grid  { grid-template-columns: repeat(3, 1fr); }
  .features__list  { grid-template-columns: repeat(2, 1fr); gap: 1.25rem; }
}

/* Acessibilidade — foco visível */
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}