/* ==========================================================================
   ESTILOS - PÁGINA DE VENDAS: RECONSTRUÇÃO DA BASE MATEMÁTICA
   Estética educacional, moderna, sóbria, acolhedora e mobile-first
   ========================================================================== */

:root {
  /* Cores Principais - Paleta Sóbria e Confiável */
  --bg-page: #f8fafc;
  --bg-surface: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-dark: #0f172a;
  --bg-card: #ffffff;

  /* Tipografia e Textos */
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --text-white: #ffffff;

  /* Cor de Destaque / Conversão (Azul Profundo + Destaque Índigo/Esmeralda) */
  --primary: #1d4ed8;
  --primary-hover: #1e40af;
  --primary-soft: #eff6ff;
  
  --accent: #0f766e;
  --accent-soft: #f0fdfa;

  --badge-bg: #e0e7ff;
  --badge-text: #3730a3;

  --border: #e2e8f0;
  --border-focus: #93c5fd;

  /* Sombras e Elevação */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 25px rgba(29, 78, 216, 0.15);

  /* Dimensões e Espaçamentos */
  --container-max: 1080px;
  --container-narrow: 840px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 9999px;

  /* Transições */
  --transition: all 0.2s ease-in-out;
}

/* Reset Básico */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Contêiner Geral */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.container-narrow {
  max-width: var(--container-narrow);
}

/* ==========================================================================
   TIPOGRAFIA & TÍTULOS
   ========================================================================== */
h1, h2, h3, h4 {
  color: #0f172a;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 {
  font-size: 2rem;
  margin-bottom: 1.25rem;
}

h2 {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
}

.text-lead {
  font-size: 1.125rem;
  color: #334155;
  line-height: 1.6;
}

.text-muted {
  color: var(--text-muted);
}

.text-center {
  text-align: center;
}

/* Badges e Tags */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  background: var(--badge-bg);
  color: var(--badge-text);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-edition {
  background: #fef3c7;
  color: #92400e;
  border: 1px solid #fde68a;
}

/* ==========================================================================
   BOTÕES E CHAMADAS PARA AÇÃO (CTA)
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: inherit;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  padding: 0.95rem 1.85rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  text-align: center;
  letter-spacing: 0.01em;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--text-white);
  box-shadow: var(--shadow-md), 0 2px 4px rgba(29, 78, 216, 0.2);
}

.btn-primary:hover, .btn-primary:focus-visible {
  background-color: var(--primary-hover);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-sm {
  padding: 0.55rem 1.15rem;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
}

.btn-large {
  padding: 1.1rem 2.2rem;
  font-size: 1.05rem;
  width: 100%;
  max-width: 440px;
}

.cta-caption {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.65rem;
  margin-bottom: 0;
}

/* ==========================================================================
   CABEÇALHO DISCRETO
   ========================================================================== */
.site-header {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 0.9rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-info {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: #0f172a;
  letter-spacing: -0.01em;
}

.brand-author {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ==========================================================================
   SEÇÃO 1: HERO
   ========================================================================== */
.hero-section {
  padding: 3rem 0 3.5rem;
  background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-page) 100%);
  border-bottom: 1px solid var(--border);
}

.hero-content {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
}

.audience-callout {
  display: inline-block;
  background: var(--primary-soft);
  color: var(--primary);
  border: 1px solid #bfdbfe;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-pill);
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: #0f172a;
  line-height: 1.2;
  margin-bottom: 1.25rem;
}

.hero-title span {
  color: var(--primary);
}

.hero-subtitle {
  font-size: 1.15rem;
  color: #475569;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.hero-cta-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.875rem;
  color: #475569;
  margin-top: 1rem;
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

/* ==========================================================================
   SEÇÕES GERAIS
   ========================================================================== */
.section {
  padding: 3.5rem 0;
}

.section-alt {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-header {
  margin-bottom: 2.5rem;
  text-align: center;
}

.section-header p {
  max-width: 680px;
  margin: 0.5rem auto 0;
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* ==========================================================================
   SEÇÃO 2: IDENTIFICAÇÃO COM O PROBLEMA
   ========================================================================== */
.problem-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.problem-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.problem-card:hover {
  border-color: #cbd5e1;
}

.problem-icon {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #fee2e2;
  color: #b91c1c;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.problem-text h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.problem-text p {
  font-size: 0.925rem;
  color: var(--text-muted);
  margin-bottom: 0;
  line-height: 1.5;
}

.problem-statement {
  background: #f8fafc;
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 1.5rem 1.75rem;
  font-size: 1.15rem;
  font-weight: 600;
  color: #1e293b;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

/* ==========================================================================
   SEÇÃO 3: A SOLUÇÃO (TRILHA VISUAL)
   ========================================================================== */
.solution-lead {
  font-size: 1.125rem;
  color: #334155;
  text-align: center;
  max-width: 720px;
  margin: 0 auto 2.5rem;
}

.progression-track {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 780px;
  margin: 0 auto 2.5rem;
}

.progression-step {
  display: flex;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.25rem;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: var(--transition);
}

.progression-step:hover {
  border-color: var(--primary);
  transform: translateX(4px);
}

.step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 700;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1rem;
  flex-shrink: 0;
}

.step-title {
  font-weight: 700;
  font-size: 1rem;
  color: #0f172a;
}

.step-arrow {
  margin-left: auto;
  color: var(--text-light);
  font-size: 1.1rem;
}

/* ==========================================================================
   SEÇÃO 4: OS 8 MÓDULOS (O QUE VOCÊ VAI APRENDER)
   ========================================================================== */
.modules-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.module-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.module-card:hover {
  border-color: #cbd5e1;
  box-shadow: var(--shadow-md);
}

.module-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary);
  letter-spacing: 0.05em;
  margin-bottom: 0.4rem;
}

.module-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
  color: #0f172a;
}

.module-desc {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 0;
}

/* ==========================================================================
   SEÇÃO 5: COMO FUNCIONAM AS AULAS
   ========================================================================== */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.feature-box {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.feature-icon-wrapper {
  width: 54px;
  height: 54px;
  border-radius: 12px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
}

.feature-box h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.feature-box p {
  font-size: 0.925rem;
  color: var(--text-muted);
  margin-bottom: 0;
  line-height: 1.55;
}

/* ==========================================================================
   SEÇÃO 6: MATERIAIS COMPLEMENTARES (PDFs)
   ========================================================================== */
.pdf-showcase {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  box-shadow: var(--shadow-sm);
}

.pdf-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 2rem;
}

.pdf-items-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.pdf-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  background: var(--bg-subtle);
  border-radius: var(--radius-md);
}

.pdf-check {
  color: var(--accent);
  font-weight: bold;
  font-size: 1.1rem;
  line-height: 1.2;
}

.pdf-item-text h4 {
  font-size: 0.95rem;
  margin-bottom: 0.15rem;
}

.pdf-item-text p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

/* ==========================================================================
   SEÇÕES 7 & 8: PARA QUEM É / NÃO É
   ========================================================================== */
.audience-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.audience-box {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
}

.audience-box.is-for {
  border-top: 4px solid var(--accent);
}

.audience-box.is-not {
  border-top: 4px solid #94a3b8;
  background: #fafafa;
}

.audience-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
}

.audience-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.audience-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.95rem;
  color: #334155;
  line-height: 1.5;
}

.audience-list .icon-check {
  color: var(--accent);
  font-size: 1rem;
  margin-top: 0.15rem;
  flex-shrink: 0;
}

.audience-list .icon-cross {
  color: #94a3b8;
  font-size: 1rem;
  margin-top: 0.15rem;
  flex-shrink: 0;
}

/* ==========================================================================
   SEÇÃO 9: PRIMEIRA EDIÇÃO & CRONOGRAMA
   ========================================================================== */
.edition-banner {
  background: #ffffff;
  border: 2px solid #e0e7ff;
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 2.5rem;
}

.edition-badge-large {
  display: inline-block;
  background: #e0e7ff;
  color: #3730a3;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-pill);
  margin-bottom: 1rem;
}

.edition-banner h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #1e1b4b;
}

.edition-banner p {
  color: #334155;
  font-size: 1rem;
  line-height: 1.6;
}

.edition-highlights {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.edition-highlights li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.95rem;
  color: #1e293b;
}

/* Linha do Tempo / Cronograma */
.timeline-track {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 2rem;
}

.timeline-step {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.timeline-step.active {
  border-color: #93c5fd;
  background: var(--primary-soft);
}

.timeline-phase {
  font-weight: 800;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary);
  background: #ffffff;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid #bfdbfe;
  flex-shrink: 0;
}

.timeline-desc {
  font-size: 0.95rem;
  color: #1e293b;
  font-weight: 600;
  margin-bottom: 0;
}

/* ==========================================================================
   SEÇÃO 10: APRESENTAÇÃO DO PROFESSOR
   ========================================================================== */
.teacher-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.teacher-avatar-placeholder {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: linear-gradient(135deg, #cbd5e1 0%, #94a3b8 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 2.5rem;
  font-weight: bold;
  border: 4px solid var(--bg-surface);
  box-shadow: var(--shadow-md);
  flex-shrink: 0;
}

.teacher-info h3 {
  font-size: 1.35rem;
  margin-bottom: 0.25rem;
}

.teacher-title {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.925rem;
  margin-bottom: 1rem;
}

.teacher-bio {
  font-size: 0.95rem;
  color: #475569;
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

/* ==========================================================================
   SEÇÃO 11 & 12: O QUE VOCÊ RECEBE & PREÇO
   ========================================================================== */
.summary-box {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  margin-bottom: 2.5rem;
}

.summary-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
}

.summary-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1rem;
  color: #1e293b;
  font-weight: 500;
}

/* Card de Preço */
.pricing-card {
  background: #ffffff;
  border: 2px solid var(--primary);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.75rem;
  text-align: center;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  position: relative;
  max-width: 540px;
  margin: 0 auto;
}

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.35rem 1rem;
  border-radius: var(--radius-pill);
}

.pricing-title {
  font-size: 1.25rem;
  color: #0f172a;
  margin-bottom: 0.5rem;
  margin-top: 0.5rem;
}

.pricing-subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.pricing-value-wrapper {
  margin-bottom: 1.75rem;
}

.price-currency {
  font-size: 1.5rem;
  font-weight: 700;
  vertical-align: super;
  color: #0f172a;
}

.price-amount {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1;
  color: #0f172a;
  letter-spacing: -0.03em;
}

.price-details {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  margin-bottom: 0;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin: 1.75rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.925rem;
  color: #334155;
}

/* ==========================================================================
   SEÇÃO 13: GARANTIA
   ========================================================================== */
.guarantee-box {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.25rem;
  max-width: 680px;
  margin: 2.5rem auto 0;
  box-shadow: var(--shadow-sm);
}

.guarantee-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #f0fdf4;
  color: #16a34a;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.guarantee-content h4 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: #0f172a;
}

.guarantee-content p {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 0;
}

/* ==========================================================================
   SEÇÃO 14: PERGUNTAS FREQUENTES (FAQ)
   ========================================================================== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  max-width: 780px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: #cbd5e1;
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 1.2rem 1.5rem;
  font-family: inherit;
  font-size: 1.05rem;
  font-weight: 700;
  color: #0f172a;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  gap: 1rem;
}

.faq-icon {
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--text-muted);
  transition: transform 0.2s ease;
  line-height: 1;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease;
  padding: 0 1.5rem;
  font-size: 0.95rem;
  color: #475569;
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  padding: 0 1.5rem 1.25rem;
  max-height: 500px;
}

/* ==========================================================================
   SEÇÃO 15: CTA FINAL
   ========================================================================== */
.final-cta-section {
  background: linear-gradient(180deg, #ffffff 0%, var(--bg-page) 100%);
  border-top: 1px solid var(--border);
  padding: 4.5rem 0;
  text-align: center;
}

.final-cta-content {
  max-width: 680px;
  margin: 0 auto;
}

.final-cta-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1rem;
  color: #0f172a;
}

.final-cta-desc {
  font-size: 1.1rem;
  color: #475569;
  margin-bottom: 1.75rem;
}

.final-price-tag {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 1.25rem;
}

/* ==========================================================================
   RODAPÉ
   ========================================================================== */
.site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 3rem 0 2rem;
  font-size: 0.85rem;
  border-top: 1px solid #1e293b;
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: #cbd5e1;
  text-decoration: none;
  transition: color 0.15s;
}

.footer-links a:hover {
  color: #ffffff;
  text-decoration: underline;
}

.footer-legal {
  line-height: 1.6;
  max-width: 640px;
  margin: 0 auto;
  font-size: 0.8rem;
  color: #64748b;
}

/* ==========================================================================
   RESPONSIVIDADE (TABLET & DESKTOP)
   ========================================================================== */
@media (min-width: 640px) {
  .problem-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .modules-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .pdf-items-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .summary-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .timeline-track {
    grid-template-columns: repeat(3, 1fr);
  }

  .timeline-step {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }
}

@media (min-width: 768px) {
  h1 {
    font-size: 2.75rem;
  }

  h2 {
    font-size: 2.1rem;
  }

  .hero-title {
    font-size: 2.75rem;
  }

  .hero-section {
    padding: 4.5rem 0 5rem;
  }

  .section {
    padding: 4.5rem 0;
  }

  .audience-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .teacher-card {
    flex-direction: row;
    text-align: left;
    padding: 2.5rem;
  }

  .guarantee-box {
    flex-direction: row;
    text-align: left;
    padding: 2rem 2.5rem;
  }
}

@media (min-width: 1024px) {
  .modules-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1100px) {
  .modules-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ==========================================================================
   NOVOS COMPONENTES: VSL, GANHOS, CASTELO, TABELA, MOCKUP PDF
   ========================================================================== */

/* 1. VSL / Aula Inaugural */
.vsl-container {
  margin: 2.25rem auto 1.5rem;
  max-width: 720px;
  background: #0f172a;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 30px -10px rgba(15, 23, 42, 0.35);
  border: 1px solid #1e293b;
  text-align: left;
}

.vsl-header-badge {
  background: #1e293b;
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.825rem;
  font-weight: 700;
  color: #38bdf8;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-bottom: 1px solid #334155;
}

.vsl-video-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: radial-gradient(circle at center, #1e293b 0%, #090d16 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  text-align: center;
  padding: 1.5rem;
}

.vsl-play-btn {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  box-shadow: 0 0 25px rgba(29, 78, 216, 0.7);
  transition: transform 0.2s ease, background-color 0.2s ease;
  cursor: pointer;
}

.vsl-play-btn svg {
  margin-left: 4px;
}

.vsl-video-wrapper:hover .vsl-play-btn {
  transform: scale(1.08);
  background: var(--primary-hover);
}

.vsl-video-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #f8fafc;
  max-width: 520px;
}

.vsl-caption {
  background: #0b1120;
  color: #94a3b8;
  padding: 0.95rem 1.25rem;
  font-size: 0.875rem;
  line-height: 1.5;
  border-top: 1px solid #1e293b;
  text-align: center;
  font-style: italic;
}

/* 2. Ganhos Rápidos (Hero) */
.hero-quick-wins {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin: 2rem auto 2.25rem;
  max-width: 680px;
  text-align: left;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.hero-quick-wins li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.975rem;
  color: #1e293b;
  font-weight: 600;
  line-height: 1.45;
}

.hero-quick-wins .win-icon {
  color: #16a34a;
  font-weight: bold;
  font-size: 1.1rem;
  flex-shrink: 0;
  line-height: 1.2;
}

/* 3. Link WhatsApp */
.whatsapp-help-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: #0f766e;
  font-size: 0.925rem;
  font-weight: 600;
  text-decoration: none;
  margin-top: 0.9rem;
  transition: var(--transition);
}

.whatsapp-help-link:hover {
  color: #115e59;
  text-decoration: underline;
}

.whatsapp-icon {
  width: 18px;
  height: 18px;
  fill: currentColor;
  flex-shrink: 0;
}

/* 4. Texto de Conexão (Problema) */
.problem-connection {
  background: #ffffff;
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 1.5rem 1.75rem;
  box-shadow: var(--shadow-sm);
  margin-top: 1rem;
  margin-bottom: 2.5rem;
}

.problem-connection p {
  color: #334155;
  font-size: 1.05rem;
  line-height: 1.65;
  margin-bottom: 0.75rem;
}

.problem-connection p:last-child {
  margin-bottom: 0;
}

/* 5. A Metáfora do Castelo de Blocos */
.castle-stages-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin: 2rem 0;
}

.castle-stage-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  transition: var(--transition);
}

.castle-stage-card:hover {
  border-color: #cbd5e1;
  box-shadow: var(--shadow-md);
}

.castle-stage-num {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 1.2rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.castle-stage-body h4 {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
  color: #0f172a;
}

.castle-stage-body p {
  font-size: 0.95rem;
  color: #475569;
  margin-bottom: 0;
  line-height: 1.55;
}

.castle-states-wrapper {
  margin: 2.5rem 0 1.5rem;
}

.castle-states-wrapper h3 {
  font-size: 1.35rem;
  text-align: center;
  margin-bottom: 1.5rem;
  color: #0f172a;
}

.castle-states-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.castle-state-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  position: relative;
  box-shadow: var(--shadow-sm);
}

.castle-state-card.state-unstable {
  border-top: 4px solid #f59e0b;
}

.castle-state-card.state-empty {
  border-top: 4px solid #3b82f6;
}

.castle-state-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.75rem;
}

.state-unstable .castle-state-tag {
  background: #fef3c7;
  color: #92400e;
}

.state-empty .castle-state-tag {
  background: #eff6ff;
  color: #1d4ed8;
}

.castle-state-card h4 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  color: #0f172a;
}

.castle-state-card p {
  font-size: 0.95rem;
  color: #475569;
  line-height: 1.6;
  margin-bottom: 0;
}

.architect-box {
  background: linear-gradient(135deg, #f0fdfa 0%, #e0f2fe 100%);
  border: 1px solid #99f6e4;
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
}

.architect-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: #0f766e;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.architect-content h3 {
  font-size: 1.25rem;
  color: #0f766e;
  margin-bottom: 0.5rem;
}

.architect-content p {
  color: #1e293b;
  font-size: 1.025rem;
  line-height: 1.65;
  margin-bottom: 0;
}

/* 6. Os Blocos no Mundo Real */
.social-practice-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

.social-practice-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.social-practice-card:hover {
  border-color: #93c5fd;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.social-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.social-practice-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.65rem;
  color: #0f172a;
}

.social-practice-card p {
  font-size: 0.95rem;
  color: #475569;
  line-height: 1.6;
  margin-bottom: 0;
}

/* 7. Tabela Comparativa */
.comparison-table-wrapper {
  overflow-x: auto;
  margin: 2.5rem 0;
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
  text-align: left;
}

.comparison-table th, .comparison-table td {
  padding: 1.1rem 1.35rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
  line-height: 1.5;
}

.comparison-table th {
  background: #f8fafc;
  color: #0f172a;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
}

.comparison-table th.col-highlight {
  background: #f0fdfa;
  color: #0f766e;
  border-bottom: 2px solid #0f766e;
}

.comparison-table td.col-highlight {
  background: #f0fdfa;
  color: #0f172a;
  font-weight: 600;
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table td.aspect-title {
  font-weight: 700;
  color: #1e293b;
  width: 20%;
  background: #fafbfc;
}

.comparison-table td.col-traditional {
  color: #64748b;
  width: 40%;
}

.comparison-table td.col-highlight {
  width: 40%;
}

/* 8. Mockup Visual do PDF de 2 Páginas */
.pdf-preview-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  margin-top: 2.5rem;
}

.pdf-page-card {
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 1.75rem;
  position: relative;
  display: flex;
  flex-direction: column;
}

.pdf-page-badge {
  display: inline-block;
  align-self: flex-start;
  background: #0f172a;
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-pill);
  margin-bottom: 1.25rem;
}

.pdf-mockup-header {
  border-bottom: 2px solid #0f172a;
  padding-bottom: 0.75rem;
  margin-bottom: 1.25rem;
}

.pdf-mockup-header h4 {
  font-size: 1.15rem;
  color: #0f172a;
  margin-bottom: 0.25rem;
}

.pdf-mockup-header span {
  font-size: 0.8rem;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}

.gold-rule-box {
  background: #fefce8;
  border: 1px solid #fde047;
  border-left: 4px solid #eab308;
  border-radius: var(--radius-sm);
  padding: 0.9rem 1.1rem;
  margin: 1rem 0;
}

.gold-rule-box h5 {
  color: #854d0e;
  font-size: 0.875rem;
  font-weight: 800;
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.gold-rule-box p {
  color: #713f12;
  font-size: 0.875rem;
  margin-bottom: 0;
  line-height: 1.45;
}

.pdf-mockup-item {
  margin-bottom: 1rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px dashed var(--border);
}

.pdf-mockup-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.pdf-mockup-item h5 {
  font-size: 0.9rem;
  color: #1e293b;
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.pdf-mockup-item p {
  font-size: 0.85rem;
  color: #64748b;
  margin-bottom: 0;
  line-height: 1.45;
}

.exercise-level-tag {
  display: inline-block;
  font-size: 0.725rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.tag-fixacao { background: #dbeafe; color: #1e40af; }
.tag-aplicacao { background: #dcfce7; color: #166534; }
.tag-desafio { background: #fef3c7; color: #92400e; }

/* Media Queries para os novos componentes */
@media (min-width: 640px) {
  .castle-stages-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .castle-states-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .social-practice-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .pdf-preview-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .architect-box {
    flex-direction: row;
    align-items: center;
    padding: 2.5rem;
  }
}