/* Reset e Variáveis Globais */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
  --primary: #0F4C81;
  --secondary: #25D366;
  --dark: #222222;
  --light: #F4F7F6;
  --white: #FFFFFF;
  --gray: #666666;
}

body {
  color: var(--dark);
  background-color: var(--white);
  line-height: 1.6;
}

/* Utilitários */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  background-color: var(--primary);
  color: var(--white);
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
}

.btn:hover {
  background-color: #093358;
}

.btn-whatsapp {
  background-color: var(--secondary);
}

.btn-whatsapp:hover {
  background-color: #1ebc57;
}

/* Cabeçalho e Menu Responsive */
header {
  background-color: var(--white);
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  position: relative;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary);
  text-decoration: none;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--primary);
  cursor: pointer;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 20px;
}

.nav-menu a {
  text-decoration: none;
  color: var(--dark);
  font-weight: 500;
  transition: color 0.2s;
}

.nav-menu a:hover, 
.nav-menu a.active {
  color: var(--primary);
  font-weight: bold;
}

/* Banner Hero */
.hero {
  background: linear-gradient(rgba(15, 76, 129, 0.85), rgba(15, 76, 129, 0.85)), url('https://images.unsplash.com/photo-1581578731548-c64695cc6952?auto=format&fit=crop&w=1200&q=80') center/cover;
  color: var(--white);
  padding: 60px 0;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.hero p {
  font-size: 1.1rem;
}

/* Conteúdo e Cards */
.about-content {
  padding: 60px 0 30px;
}

.about-box {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about-box h2 {
  color: var(--primary);
  font-size: 2rem;
  margin-bottom: 20px;
}

.about-box p {
  margin-bottom: 15px;
  color: #444;
}

.features {
  padding: 40px 0 60px;
  background-color: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  text-align: center;
}

.feature-card {
  background: var(--light);
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.feature-card i {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 10px;
}

.feature-card h3 {
  color: var(--primary);
  margin: 10px 0;
}

/* Rodapé */
footer {
  background-color: var(--dark);
  color: var(--white);
  padding: 40px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  margin-bottom: 30px;
}

.footer-bottom {
  text-align: center;
  border-top: 1px solid #444;
  padding-top: 20px;
  font-size: 0.9rem;
  color: #aaa;
}

.footer-link {
  color: #aaa;
  text-decoration: none;
}

/* Botão Flutuante do WhatsApp */
.whatsapp-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: var(--secondary);
  color: white;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  box-shadow: 2px 2px 10px rgba(0,0,0,0.2);
  text-decoration: none;
  z-index: 1000;
}

/* Responsividade */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .nav-menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--white);
    padding: 20px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    gap: 15px;
  }

  .nav-menu.show {
    display: flex;
  }

  .hero h1 {
    font-size: 1.8rem;
  }
}