/* ========================================================================
   Blog Page CSS - Redesign com Tema (Dark/Light)
   Padrão: Dark Mode
   Ativador: .light-mode no <body>
   ======================================================================== */

/* ------------------------------------------
   1. Variáveis Globais e Temas
   ------------------------------------------ */
:root {
  /* --- DARK MODE (PADRÃO) --- */
  --color-bg-primary: #181822;      /* Fundo Principal */
  --color-bg-secondary: #262635;  /* Fundo de Seção/Card */
  --color-accent: #7A4CFF;         /* Destaque (Brand) */
  --color-text-primary: #C8C8D0;   /* Texto principal (parágrafos) */
  --color-text-high: #FFFFFF;      /* Texto de alto contraste (títulos) */
  --color-border: #3a3a4c;         /* Bordas suaves */
  --color-shadow: rgba(0, 0, 0, 0.2); /* Sombra para dark mode */
  --color-shadow-accent: rgba(122, 76, 255, 0.2); /* Sombra de Destaque */
  
  /* --- HOVER/ACTIVE STATES (DARK) --- */
  --color-accent-hover: #8B5FFF;
  --color-accent-active: #6A3BFF;

  /* --- Tipografia (Mantida) --- */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  
  /* --- Transições e Bordas (Mantidas) --- */
  --transition-speed: 0.3s;
  --border-radius-btn: 18px;
  --border-radius-card: 16px;
  --border-radius-input: 12px;
}

/* --- LIGHT MODE (SOBRESCRITA) --- */
body.light-mode {
  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: #F0F0F0;
  --color-accent: #7A4CFF;         /* Destaque (Mantido) */
  --color-text-primary: #333333;   /* Texto principal (cinza escuro) */
  --color-text-high: #000000;      /* Texto de alto contraste (preto) */
  --color-border: #e0e0e0;         /* Bordas claras */
  --color-shadow: rgba(0, 0, 0, 0.05); /* Sombra para light mode */
  --color-shadow-accent: rgba(122, 76, 255, 0.15); /* Sombra de Destaque */
  
  /* --- HOVER/ACTIVE STATES (LIGHT) --- */
  /* (Podem ser os mesmos, já que o accent não muda) */
  --color-accent-hover: #8B5FFF;
  --color-accent-active: #6A3BFF;
}

/* ------------------------------------------
   1b. Reset Básico e Transições Globais
   ------------------------------------------ */
body {
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: var(--font-family);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
  margin: 0;
  /* Transição suave de tema */
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text-high);
  transition: color var(--transition-speed) ease;
}

p {
  color: var(--color-text-primary);
  font-size: 1.05rem;
  transition: color var(--transition-speed) ease;
}

/* Helper para containers (assumindo que você tenha um) */
.container {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ------------------------------------------
   2. Seção: Hero (blog-hero)
   ------------------------------------------ */
.blog-hero {
  background: var(--color-bg-primary);
  color: var(--color-text-high); /* Texto do Hero em alto contraste */
  padding: 80px 0 70px 0;
  text-align: center;
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

.blog-hero h1 {
  font-family: var(--font-family);
  font-weight: 700;
  font-size: 3rem;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.blog-hero p {
  font-size: 1.25rem;
  margin-bottom: 30px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  color: var(--color-text-primary); /* Parágrafo do Hero com cor normal */
}

/* Estilo de botão primário */
.blog-hero .btn-primary {
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--border-radius-btn);
  padding: 14px 32px;
  background: var(--color-accent);
  color: #FFFFFF; /* Texto do botão sempre branco */
  border: none;
  text-decoration: none;
  display: inline-block;
  transition: all var(--transition-speed) ease;
}

.blog-hero .btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--color-shadow-accent);
}

.blog-hero .btn-primary:active {
  transform: translateY(0) scale(0.98);
  background: var(--color-accent-active);
}

/* ------------------------------------------
   3. Seção: Jornada do Cliente (blog-jornada)
   ------------------------------------------ */
.blog-jornada {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
  padding: 80px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

.jornada-title {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 50px;
  color: var(--color-text-high);
  font-weight: 600;
}

.jornada-infografico {
  position: relative;
  max-width: 320px;
  margin: 0 auto;
  padding-top: 18px;
}

.jornada-linha {
  position: absolute;
  left: 28px;
  top: 35px;
  bottom: 30px;
  width: 3px;
  background: var(--color-border);
  z-index: 1;
  border-radius: 3px;
  transition: background-color var(--transition-speed) ease;
}

.jornada-etapa {
  /* Animações de entrada mantidas */
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 48px;
  position: relative;
  opacity: 0;
  transform: translateY(64px);
  transition: opacity 0.65s ease, transform 0.55s ease;
  z-index: 2;
}

.jornada-etapa:last-child { 
  margin-bottom: 0; 
}

.jornada-etapa .jornada-icone {
  background: var(--color-bg-primary);
  border: 2px solid var(--color-border);
  color: var(--color-text-primary);
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  box-shadow: 0 3px 6px var(--color-shadow);
  transition: all var(--transition-speed) ease;
  flex-shrink: 0;
}

.jornada-etapa-titulo {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-text-high);
  display: block;
  margin-bottom: 2px;
}

.jornada-etapa-desc {
  font-size: 0.98rem;
  color: var(--color-text-primary);
}

/* Estado de Animação (quando visível) */
.jornada-etapa.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.jornada-etapa.is-visible .jornada-icone {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
  box-shadow: 0 5px 15px var(--color-shadow-accent);
}

/* ------------------------------------------
   4. Seção: Ferramenta de IA (blog-ia-demo)
   ------------------------------------------ */
.blog-ia-demo {
  background: var(--color-bg-primary);
  color: var(--color-text-high);
  padding: 80px 0;
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

.ia-demo-container {
  max-width: 620px;
  margin: 0 auto;
  text-align: center;
}

.ia-demo-container h2 {
  font-size: 2rem;
  margin-bottom: 25px;
  color: var(--color-text-high);
}

.ia-demo-form {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 20px;
}

/* Estilo do Input */
.ia-demo-form input {
  flex: 3;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-input);
  background: var(--color-bg-secondary); /* Fundo de card */
  color: var(--color-text-high); /* Texto digitado em alto contraste */
  font-family: var(--font-family);
  font-size: 1.05rem;
  padding: 14px 20px;
  outline: none;
  transition: all var(--transition-speed) ease;
  box-shadow: 0 1px 3px var(--color-shadow);
}

.ia-demo-form input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-shadow-accent);
}

.ia-demo-form input::placeholder {
  color: var(--color-text-primary);
  opacity: 0.8;
}

/* Estilo do Botão do Form */
.ia-demo-form button {
  flex: 1;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: var(--border-radius-input);
  padding: 14px 24px;
  font-family: var(--font-family);
  font-size: 1.02rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-speed) ease;
}

.ia-demo-form button:hover {
  background: var(--color-accent-hover);
}

.ia-demo-form button:active {
  transform: scale(0.98);
  background: var(--color-accent-active);
}

/* Área de Resultado */
.ia-result-area {
  margin-top: 30px;
  min-height: 56px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
}

.ia-card {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
  border-radius: var(--border-radius-card);
  box-shadow: 0 4px 15px var(--color-shadow);
  padding: 24px 28px;
  min-width: 230px;
  max-width: 400px;
  text-align: left;
  font-size: 1.06rem;
  border-left: 5px solid var(--color-accent);
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease, box-shadow var(--transition-speed) ease, border-color var(--transition-speed) ease;
  /* Animação de entrada */
  opacity: 0;
  transform: translateY(30px) scale(0.97);
  animation: iaCardIn 0.5s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

@keyframes iaCardIn {
  to { opacity: 1; transform: translateY(0) scale(1);}
}

.ia-card-title {
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 8px;
  font-size: 1.1rem;
  transition: color var(--transition-speed) ease;
}

.ia-card ul {
  margin-left: 16px;
  margin-bottom: 0;
  padding-bottom: 0;
  color: var(--color-text-primary);
  font-size: 0.98rem;
}

.ia-loading {
  color: var(--color-text-primary);
  font-size: 1rem;
  margin-top: 18px;
  letter-spacing: 1px;
  animation: iaEllipsis 1.2s infinite linear;
}

@keyframes iaEllipsis {
  0% { letter-spacing: 1px;}
  30% { letter-spacing: 4px;}
  80% { letter-spacing: 10px;}
  100% { letter-spacing: 1px;}
}

/* ------------------------------------------
   5. Seção: Formatos de Conteúdo (blog-formatos)
   ------------------------------------------ */
.blog-formatos {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
  padding: 68px 0 58px 0;
  border-top: 1px solid var(--color-border);
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

.formatos-title {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 40px;
  color: var(--color-text-high);
  font-weight: 600;
}

.formatos-grid {
  display: flex;
  justify-content: center;
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.formato-card {
  background: var(--color-bg-primary); /* Card no fundo primário */
  border-radius: var(--border-radius-card);
  text-align: center;
  padding: 32px 20px 28px 20px;
  min-width: 180px;
  box-shadow: 0 4px 15px var(--color-shadow);
  color: var(--color-text-primary);
  transition: all var(--transition-speed) ease;
}

.formato-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 20px var(--color-shadow);
}

.formato-card i {
  font-size: 2.2rem;
  color: var(--color-accent);
  margin-bottom: 15px;
  transition: color var(--transition-speed) ease;
}

.formato-titulo {
  color: var(--color-text-high);
  font-size: 1.1rem;
  font-weight: 600;
}

/* ------------------------------------------
   6. Seção: Pilares Estratégicos (blog-pilares)
   ------------------------------------------ */
.blog-pilares {
  background: var(--color-bg-primary);
  padding: 80px 0 70px 0;
  color: var(--color-text-primary);
  border-top: 1px solid var(--color-border);
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

.pilares-grid {
  display: flex;
  gap: 30px;
  justify-content: center;
  max-width: 900px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.pilar-card {
  background: var(--color-bg-secondary); /* Card no fundo secundário */
  min-width: 240px;
  flex: 1;
  border-radius: var(--border-radius-card);
  text-align: center;
  padding: 40px 28px 30px 28px;
  box-shadow: 0 2px 8px var(--color-shadow);
  transition: all var(--transition-speed) ease;
}

.pilar-card:hover {
  box-shadow: 0 5px 20px var(--color-shadow);
  transform: translateY(-3px);
}

.pilar-card i {
  font-size: 2.3rem;
  color: var(--color-accent);
  margin-bottom: 16px;
  transition: color var(--transition-speed) ease;
}

.pilar-card h3 {
  margin: 0 0 10px 0;
  color: var(--color-text-high);
  font-size: 1.2rem;
  font-weight: 600;
}

.pilar-card p {
  font-size: 1rem;
  color: var(--color-text-primary);
  line-height: 1.5;
}

/* ------------------------------------------
   7. Seção: CTA Final (blog-cta-final)
   ------------------------------------------ */
.blog-cta-final {
  background: var(--color-bg-secondary);
  color: var(--color-text-high);
  text-align: center;
  padding: 70px 0;
  border-top: 1px solid var(--color-border);
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

.blog-cta-final h2 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 24px;
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

.blog-cta-final .btn-primary {
  font-size: 1rem;
  padding: 14px 32px;
  border-radius: var(--border-radius-btn);
  background: var(--color-accent);
  color: #fff;
  border: none;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  transition: all var(--transition-speed) ease;
}

.blog-cta-final .btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--color-shadow-accent);
}

.blog-cta-final .btn-primary:active {
  transform: translateY(0) scale(0.98);
  background: var(--color-accent-active);
}

/* ------------------------------------------
   8. Botão de Alternância de Tema
   ------------------------------------------ */
/* Você precisará de um <button class="theme-toggle-button">...</button> no seu HTML */
.theme-toggle-button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-primary); /* Cor Padrão (Dark Mode) */
  font-size: 1.5rem; /* Tamanho do ícone */
  padding: 8px;
  border-radius: 50%;
  
  /* Posicionamento (Exemplo) */
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 999;
  
  transition: color var(--transition-speed) ease, transform 0.2s ease;
}

.theme-toggle-button:hover {
  color: var(--color-accent);
  transform: scale(1.1);
}

/* Cor no Light Mode */
body.light-mode .theme-toggle-button {
  color: var(--color-text-high); /* Cor de Alto Contraste (Light Mode) */
}

body.light-mode .theme-toggle-button:hover {
  color: var(--color-accent);
}


/* ------------------------------------------
   9. Responsividade (Ajustes finos)
   ------------------------------------------ */
@media (max-width: 900px) {
  /* Mantém suas regras de empilhamento originais */
  .formatos-grid, .pilares-grid {
    flex-direction: column;
    align-items: center;
    gap: 18px;
    padding: 0 20px;
  }

  .pilar-card {
    min-width: unset;
    width: 90%;
    max-width: 400px;
  }
  
  .formato-card {
    min-width: unset;
    width: 90%;
    max-width: 400px;
  }
}

@media (max-width: 600px) {
  /* Ajusta a tipografia para telas menores */
  .blog-hero h1 { 
    font-size: 2.2rem; 
  }
  
  .blog-hero p {
    font-size: 1.1rem;
  }
  
  .jornada-title,
  .ia-demo-container h2,
  .formatos-title,
  .blog-cta-final h2 {
    font-size: 1.7rem;
  }
  
  .jornada-infografico { 
    max-width: 95vw; 
    padding-left: 10px;
    box-sizing: border-box;
  }
  
  .ia-demo-form {
    flex-direction: column;
    padding: 0 20px;
  }
  
  .ia-demo-form input,
  .ia-demo-form button {
    flex: unset;
    width: 100%;
    box-sizing: border-box;
  }

  .blog-hero,
  .blog-jornada,
  .blog-ia-demo,
  .blog-formatos,
  .blog-pilares,
  .blog-cta-final {
    padding-top: 60px;
    padding-bottom: 60px;
  }

  /* Ajusta posição do botão de tema em telas pequenas */
  .theme-toggle-button {
    top: 10px;
    right: 10px;
    font-size: 1.3rem;
  }
}