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

body {
  font-family: 'Montserrat', sans-serif;
  background-color: #f5f5f5;
  color: #111;
  line-height: 1.6;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  background-color: #111;
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
}

header .logo {
  font-size: 1.5rem;
  font-weight: bold;
}

header nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
}

header nav ul li a {
  color: #fff;
  text-decoration: none;
  transition: color 0.3s;
}

header nav ul li a:hover {
  color: #9b59b6;
}

#modeToggle {
  margin-left: 20px;
  cursor: pointer;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.2rem;
}

/* Banner */
.banner {
  text-align: center;
  padding: 100px 20px;
  background: linear-gradient(to right, #6a0dad, #8e44ad);
  color: #fff;
}

.banner h1 {
  font-size: 3rem;
  margin-bottom: 10px;
}

.banner p {
  font-size: 1.2rem;
}

/* Filtro de categorias */
.filtro-categorias {
  text-align: center;
  padding: 20px;
}

.filtro-categorias button {
  padding: 10px 20px;
  margin: 5px;
  border: none;
  background-color: #eee;
  cursor: pointer;
  transition: all 0.3s;
}

.filtro-categorias button.active,
.filtro-categorias button:hover {
  background-color: #9b59b6;
  color: #fff;
}

/* Artigos */
.artigos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  padding: 40px;
}

.card {
  background-color: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0px 0px 15px rgba(0,0,0,0.1);
  transition: transform 0.3s;
}

.card:hover {
  transform: translateY(-5px);
}

.card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.card h2 {
  padding: 15px;
  font-size: 1.2rem;
}

.card p {
  padding: 0 15px 15px 15px;
}

.card a {
  display: inline-block;
  margin: 0 15px 15px 15px;
  text-decoration: none;
  color: #9b59b6;
  font-weight: bold;
}

/* Sobre e Contato */
.sobre, .contato {
  padding: 60px 40px;
  background-color: #f0f0f0;
}

.sobre h2, .contato h2 {
  margin-bottom: 20px;
  color: #6a0dad;
}

/* Formulário */
form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

form input, form textarea {
  padding: 10px;
  border-radius: 5px;
  border: 1px solid #ccc;
}

form button {
  padding: 10px;
  border: none;
  background-color: #9b59b6;
  color: #fff;
  font-weight: bold;
  cursor: pointer;
  border-radius: 5px;
}

form button:hover {
  background-color: #6a0dad;
}

/* Footer */
footer {
  text-align: center;
  padding: 20px;
  background-color: #111;
  color: #fff;
}

/* Modo Escuro */
body.dark-mode {
  background-color: #111;
  color: #f5f5f5;
}

body.dark-mode .banner {
  background: linear-gradient(to right, #8e44ad, #6a0dad);
}

body.dark-mode .card {
  background-color: #222;
  color: #f5f5f5;
}

body.dark-mode .filtro-categorias button {
  background-color: #333;
  color: #f5f5f5;
}

body.dark-mode .filtro-categorias button.active {
  background-color: #9b59b6;
}
/* Banner do artigo */
.banner-artigo {
  text-align: center;
  padding: 80px 20px;
  background: linear-gradient(to right, #6a0dad, #8e44ad);
  color: #fff;
}

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

.banner-artigo p {
  font-size: 1.1rem;
}

/* Conteúdo do artigo */
.conteudo-artigo {
  max-width: 900px;
  margin: 40px auto;
  padding: 0 20px;
}

.conteudo-artigo img.imagem-destaque {
  width: 100%;
  height: auto;
  border-radius: 10px;
  margin-bottom: 20px;
}

.conteudo-artigo h2 {
  color: #6a0dad;
  margin: 20px 0 10px 0;
}

.conteudo-artigo h3 {
  color: #8e44ad;
  margin: 15px 0 10px 0;
}

.conteudo-artigo p {
  margin-bottom: 15px;
  line-height: 1.8;
}

.conteudo-artigo blockquote {
  border-left: 4px solid #9b59b6;
  padding-left: 15px;
  font-style: italic;
  color: #555;
  margin: 20px 0;
}

/* Navegação do artigo */
.nav-artigo {
  display: flex;
  justify-content: space-between;
  margin-top: 40px;
}

.nav-artigo a {
  text-decoration: none;
  color: #9b59b6;
  font-weight: bold;
  transition: color 0.3s;
}

.nav-artigo a:hover {
  color: #6a0dad;
}