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

/* Corpo da página */
body {
  font-family: 'Arial', sans-serif;
  background-color: #ffffff;
  color: #333333;
  line-height: 1.6;
}

/* Navegação */
nav {
  background-color: #0073b1;
  padding: 1rem;
  text-align: center;
}

nav ul {
  list-style: none;
}

nav ul li {
  display: inline;
  margin: 0 15px;
}

nav ul li a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
}

nav ul li a:hover,
nav ul li a.active {
  border-bottom: 2px solid #fff;
}

/* Cabeçalho */
header {
  text-align: center;
  padding: 2rem;
  background-color: #f8f9fa;
  border-bottom: 1px solid #ddd;
}

header h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: #0073b1;
}

header p {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.perfil-img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  display: block;
  margin: 0 auto 15px auto;
  border: 3px solid #0073b1;
}

/* Botões sociais */
.social-buttons {
  margin-top: 1rem;
}

.social-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 10px 10px 0;
  font-size: 1rem;
  color: #fff;
  background-color: #0073b1;
  border-radius: 25px;
  padding: 8px 15px;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: inset 0 0 0 rgba(0,0,0,0.1);
}

.social-btn:hover {
  background-color: #005f8a;
  box-shadow: inset 0 0 10px rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

/* Conteúdo principal */
main {
  max-width: 900px;
  margin: 2rem auto;
  padding: 0 1rem;
}

/* Cards e Sections modernizados */
.card,
section {
  background: linear-gradient(135deg, #f4f6f8, #e0e7ed);
  border: 2px solid #0073b1;
  border-radius: 18px;
  padding: 2rem;
  margin: 2rem 0;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.4s ease;
}

.card:hover,
section:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.15);
  background: linear-gradient(135deg, #e0e7ed, #f4f6f8);
}

/* Títulos dentro de cards e sections */
.card h2,
section h2 {
  font-size: 1.9rem;
  margin-bottom: 1rem;
  color: #0073b1;
}

/* Listas dentro de cards e sections */
.card ul,
section ul {
  list-style: disc inside;
}

.card ul li,
section ul li {
  margin-bottom: 0.8rem;
}

/* Responsividade */
@media screen and (max-width: 768px) {
  nav ul li {
    display: block;
    margin: 10px 0;
  }

  .card,
  section {
    padding: 1.5rem;
  }

  .social-btn {
    margin: 5px 0;
  }
}