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

/* ------------------ BASE ------------------ */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f9fdf7;
  color: #2e3a21;
  line-height: 1.6;
  padding: 20px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ------------------ HEADER ------------------ */
header {
  background-color: #96db98;
  padding: 20px 30px;
  color: #f0fff0;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

header h1 {
  font-size: 1.8rem;
  user-select: none;
}

/* ------------------ NAV ------------------ */
nav a {
  color: #e6f2d9;
  text-decoration: none;
  margin-left: 20px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 6px;
  transition: background-color 0.3s ease;
}

nav a:hover {
  background-color: #81c784;
  color: #1b3a07;
}

nav a.active,
nav a[aria-current="page"] {
  background-color: #2e7d32;
  color: #e6f2d9;
  cursor: default;
}

/* ------------------ MAIN ------------------ */
main {
  flex-grow: 1;
  max-width: 900px;
  margin: 30px auto;
  background: #ffffff;
  padding: 30px 40px;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

/* ------------------ ARTICLE ------------------ */
article.blog h2 {
  color: #2e7d32;
  margin-bottom: 15px;
  font-size: 2rem;
}

article.blog p {
  margin-bottom: 20px;
  font-size: 1.1rem;
  color: #405d27;
}

/* ------------------ SECTIONS ------------------ */
section h3 {
  margin-top: 30px;
  margin-bottom: 12px;
  color: #4caf50;
  font-size: 1.4rem;
  border-bottom: 2px solid #a5d6a7;
  padding-bottom: 5px;
}

/* ------------------ LISTAS ------------------ */
ul {
  list-style-type: disc;
  margin-left: 20px;
  color: #3a4a18;
  font-size: 1.1rem;
  margin-bottom: 20px;
}

ul li {
  margin-bottom: 10px;
}

/* ------------------ TABELAS ------------------ */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 25px;
  font-size: 1rem;
}

thead {
  background-color: #e8f5e9;
  color: #2e7d32;
}

th,
td {
  border: 1px solid #c8e6c9;
  padding: 12px 15px;
  text-align: left;
}

tbody tr:nth-child(odd) {
  background-color: #f1f8e9;
}

tbody tr:hover {
  background-color: #dcedc8;
  transition: background-color 0.3s ease;
}

/* ------------------ LINKS ------------------ */
a {
  color: #388e3c;
  text-decoration: underline;
}

a:hover {
  color: #1b5e20;
  text-decoration: none;
}

/* ------------------ FOOTER ------------------ */
footer {
  text-align: center;
  padding: 18px 10px;
  background-color: #e8f5e9;
  color: #4caf50;
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: 40px;
  user-select: none;
  border-top: 1px solid #c8e6c9;
}

/* ------------------ RESPONSIVO ------------------ */
@media (max-width: 600px) {
  header {
    flex-direction: column;
    text-align: center;
  }

  nav a {
    margin: 10px 5px 0 5px;
    display: inline-block;
  }

  main {
    padding: 20px;
    margin: 20px 10px;
  }

  article.blog h2 {
    font-size: 1.6rem;
  }

  section h3 {
    font-size: 1.2rem;
  }
}