* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background: #f5f7fa;
  color: #222;
  line-height: 1.6;
}

header {
  background: #0d6efd;
  color: #fff;
  padding: 30px 20px;
  text-align: center;
}

header h1 {
  font-size: 28px;
  margin-bottom: 10px;
}

.container {
  max-width: 900px;
  margin: 30px auto;
  padding: 0 20px;
}

section {
  background: #fff;
  padding: 20px;
  margin-bottom: 25px;
  border-radius: 6px;
}

h1 {
  font-size: 26px;
  margin-bottom: 15px;
}

h2 {
  font-size: 22px;
  margin: 20px 0 10px;
}

h3 {
  font-size: 18px;
  margin: 15px 0 8px;
}

p {
  margin-bottom: 15px;
}

ul {
  margin-left: 20px;
  margin-bottom: 15px;
}

a {
  color: #0d6efd;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.breadcrumb {
  max-width: 900px;
  margin: 20px auto 0;
  padding: 0 20px;
  font-size: 14px;
}

footer {
  background: #222;
  color: #ccc;
  text-align: center;
  padding: 15px;
  font-size: 14px;
}

.site-header {
  background: #0d6efd;
  border-bottom: 3px solid #084298;
}

.header-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
}

.site-logo {
  color: #fff;
  font-size: 20px;
  font-weight: bold;
  text-decoration: none;
}

.site-nav a {
  color: #fff;
  margin-left: 15px;
  font-size: 15px;
  text-decoration: none;
}

.site-nav a:hover {
  text-decoration: underline;
}

/* Mobile simples */
@media (max-width: 700px) {
  .header-flex {
    flex-direction: column;
    gap: 10px;
  }

  .site-nav a {
    margin-left: 10px;
    margin-right: 10px;
  }
}