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

html {
  font-family: "Montserrat", sans-serif;
  font-size: 16px;
  width: 100%;
  height: 100%;
}

body {
  width: 100%;
  min-height: 100vh;
  margin: 0;
}

.all-divs {
    margin: 0;
}

.container-cabeca {
    background-color: #02A28F;
    width: 100%;
}

#cabeca {
    color: white;
    padding: 13px 13px;  
}

#cabeça > h1 {
    font-size: 2rem;
    margin-left: 156px;

}

.container-main {
  width: 100%;
  max-width: 70.5rem;
  margin: 0 auto;
  display: flex;
  margin-top: 3.75rem;
  margin-left: 9.75rem;
  margin-right: 9.75rem;
  gap: 2.5rem;
}

.main-content {
  margin: 0;
  display: flex;
} 

.banner-image {
    width: 46.5rem;
    height: auto;
}

#post-bar {
    background-color: #02A28F;
    color: #fff;
    margin: 0;
    border-radius: 0.62rem;
}

#post-bar > h3 {
    width: 22.5rem;
    padding: 0.62rem;
    margin: 0;
    margin-left: 1.5rem;
}

.sidebar-posts {
  width: 22.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 1.25rem; 
}

.post-item {
  width: auto;
  display: flex;
  gap: 0.75rem;
  align-items:flex-start;
  background-color: rgba(255,255,255,0.08);
  padding: 0.75rem;
  border-radius: 0.62rem;
  box-shadow: 0 6px 16px rgba(0,0,0,0.2);

}

.post-item > img {
  width: 8.25rem;
  height: 4.37rem;
  object-fit: cover;
  border-radius: 0.37rem;
}

.post-item > div {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.post-item p {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0;
  color: #000000;
}

.post-item span {
  font-size: 0.75rem;
  opacity: 0.8;
  color: #616161;
}

.recent-posts {
  margin:0;
  margin-top: 2rem;
  width: 46.5rem;
  height: 55.18rem;
  gap: 1.25rem;
  margin-left: 9.75rem;
  margin-right: 9.75rem;
}

.posts-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #02A28F;
  color: white;
  border-radius: 0.5rem;
}

.posts-header > h2 {
  margin-left: 1.5rem;
  font-size: 1.25rem;
  font-style: bold;
}

.posts-header > h3 {
  margin-left: 1.5rem;
  font-size: 1.25rem;
  font-style: bold;
}

.posts-header > a {
  margin-right: 1.5rem;
  text-decoration:underline;
}

.posts-grid {
  margin: 0;
  padding: 0;
  display: grid;
  justify-content: space-between;
  grid-template-columns: repeat(2, 2fr);
  grid-template-rows: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 1rem;
}


.post-card {
  background-color: #f6f6f6;
  padding: 0px;
  border-radius: 0.75rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  width: 22.5rem;
  height: 24.75rem;
  gap: 8px;
  max-width: 22.5rem;
  max-height: 24.75rem; 
  flex: 1; 
}

.post-card img {
  width: 22.5rem;
  height: auto;
  border-radius: 0.5rem;
}

.post-card-text {
  margin: 0.93rem 1rem 0.93rem 1rem;
  display: grid;
  text-align: left;
  justify-content: space-between;
  gap: 8px;
}

.post-card-text > h2 {
  color:#02A28F;
  margin: 0;
  padding: 0;
  font-size: 0.87rem;
  width: 7.56rem;
  height: 1.06rem;
}

.post-card-text > h4 {
  font-size: 1.25rem;
  margin: 0;
  padding: 0;
}

#paragrafo-sombra {
    margin: 0;
    padding: 0;
    font-size: 0.87rem;
    height: 1.06rem;
    color: #616161;
}

#paragrafo-sombra2 {
    margin: 0;
    padding: 0;
    font-size: 0.87rem;
    width: 6.75rem;
    height: 1.06rem;
    color: #616161;
    justify-content: end;
}

#paragrafo-texto {
    margin: 0;
    padding: 0;
    font-size: 0.87rem;
    height: auto;
}

.site-footer {
  margin-top: 4rem;
  text-align: center;
  padding: 1.5rem;
  background-color: #02A28F;
  color: white;
  font-size: 0.9rem;
  margin-left: 0;
}

.site-footer > p {
    padding: 0;
    margin: 0;
}

.categorias {
    width: 22.5rem;
    margin: 0;
    background-color: #02A28F;
    color: #fff;
    height: 3rem;
    margin: 0;
    border-radius: 0.62rem;
    display: grid;
}

.categorias > h3 {
  margin: 0.75rem 13.93rem 0.75rem 1.5rem;
}

.categorias > ul {
  color: #616161;
}

.categorias > ul > li {
  list-style:inside
}

@media (max-width: 320px) {
  /* 1. Empilhar tudo em bloco e remover margens fixas */
  .container-main {
    display: block;
    margin: 0;
    padding: 1rem;
    width: 100%;
  }

  /* 2. Cabeçalho */
  .container-cabeca {
    text-align: center;
  }

  /* 3. Banner */
  .banner-image {
    display: block;
    width: 100%;
    height: auto;
    margin: 1rem 0;
  }

  /* 4. Seção de posts populares */
  #post-bar {
    width: 100%;
    text-align: center;
    margin: 1rem 0;
  }
  .sidebar-posts {
    display: block;
    width: 100%;
    margin: 0.5rem 0;
    gap: 1rem;
  }
  .post-item {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .post-item > img {
    width: 80%;
    margin-bottom: 0.5rem;
  }

  /* 5. Recent posts – grid vira coluna única */
  .recent-posts {
    width: 100%;
    margin: 1rem 0;
  }
  .posts-grid {
    display: grid;
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
    gap: 1rem;
  }
  .post-card {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
  }
  .post-card img {
    width: 100%;
    height: auto;
  }

  /* 6. Categorias como penúltimo elemento */
  .categorias {
    width: 100%;
    margin: 1.5rem 0;
    text-align: center;
  }

  /* 7. Footer centralizado */
  .site-footer {
    text-align: center;
    padding: 1rem;
  }
}