:root {
  --bg-color: #ffffff;
  --surface-color: #f8f9fa;
  --surface-hover: #f1f3f5;
  --border-color: rgba(0, 0, 0, 0.08);
  --text-primary: #0a0a0a;
  --text-secondary: #52525b;
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: var(--font-family);
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Header & Navegação */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.2rem 8%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-logo {
  height: 28px;
  width: auto;
  /* Como a imagem do logo é preta com fundo transparente/branco, não usamos filtro aqui */
  filter: none; 
}

.logo-text {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: var(--text-primary);
}

.logo-text span {
  color: var(--text-secondary);
  font-weight: 400;
}

.nav-btn {
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  background: var(--text-primary);
  color: #ffffff;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.2s ease;
}

.nav-btn:hover {
  background: #27272a;
  transform: translateY(-1px);
}

/* Layout Geral */
section {
  padding: 6rem 8%;
}

/* Hero Section */
.hero {
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding-top: 8rem;
  background: radial-gradient(circle at 50% 20%, rgba(0, 0, 0, 0.03) 0%, transparent 70%);
}

.hero h1 {
  font-size: 5rem;
  font-weight: 800;
  line-height: 1.1;
  max-width: 1000px;
  margin-bottom: 1.5rem;
  letter-spacing: -1px;
  color: var(--text-primary);
}

.hero h2 {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.1;
  max-width: 1000px;
  margin-bottom: 1.5rem;
  letter-spacing: -1px;
  color: var(--text-primary);
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
}

/* Botões Globais */
.btn-primary {
  padding: 0.8rem 1.8rem;
  border-radius: 6px;
  background: var(--text-primary);
  color: #ffffff;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

.btn-primary:hover {
  background: #27272a;
  transform: translateY(-2px);
}

.btn-primary.large {
  padding: 1rem 2.2rem;
  font-size: 1rem;
}

.btn-secondary {
  padding: 0.8rem 1.8rem;
  border-radius: 6px;
  background: transparent;
  color: var(--text-primary);
  border: 1px solid rgba(0, 0, 0, 0.15);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: var(--surface-hover);
  border-color: rgba(0, 0, 0, 0.3);
}

/* Métrica / Estatísticas */
.stats-section {
  display: flex;
  justify-content: space-around;
  align-items: center;
  background: var(--surface-color);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 3rem 8%;
  gap: 2rem;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -1px;
  color: var(--text-primary);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 0.2rem;
}

/* Features Grid */
.features-section {
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto;
}

.section-header h2 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1rem;
}

.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 2.2rem;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.card:hover {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.2);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  transform: translateY(-4px);
}

.card-icon {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 1.2rem;
  letter-spacing: 1px;
}

.card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
  color: var(--text-primary);
}

.card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.5;
}

/* CTA Box */
.cta-section {
  padding-bottom: 8rem;
}

.cta-box {
  background: linear-gradient(180deg, var(--surface-color) 0%, #f1f3f5 100%);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 4rem 2rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.cta-box h2 {
  font-size: 2.2rem;
  font-weight: 700;
  max-width: 600px;
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

.cta-box p {
  color: var(--text-secondary);
  max-width: 500px;
  margin-bottom: 2rem;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem 8%;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Adaptabilidade Mobile */
@media (max-width: 768px) {
  .navbar {
    padding: 1rem 5%;
  }

  .hero {
    padding-top: 7rem;
    min-height: auto;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero p {
    font-size: 0.98rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .btn-primary, .btn-secondary {
    width: 100%;
    text-align: center;
  }

  .stats-section {
    flex-direction: column;
    gap: 1.8rem;
  }

  .cta-box {
    padding: 2.5rem 1.5rem;
  }

  .cta-box h2 {
    font-size: 1.6rem;
  }
}