:root {
  --vermelho: #d43131;
  --preto: #0a0a0a;
  --branco: #f5f5f5;
  --cinza: #aaa;
  --fonte-display: 'Bebas Neue', sans-serif;
  --fonte-texto: 'IBM Plex Mono', monospace;
}

body {
  margin: 0;
  font-family: var(--fonte-texto);
  color: var(--preto);
  background-color: var(--branco);
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(to right, var(--cinza) 1px, transparent 1px),
    linear-gradient(to bottom, var(--cinza) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.1;
  z-index: -1;
}

header {
  text-align: center;
  background-color: var(--vermelho);
  color: var(--branco);
  padding: 1.5rem 0;
  font-family: var(--fonte-display);
  letter-spacing: 2px;
}

.site-grid {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: 1rem;
  padding: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.side {
  border: 2px solid var(--preto);
  padding: 1rem;
}

.side.left ul {
  list-style: none;
  padding: 0;
}

.side.left li {
  margin: 0.5rem 0;
}

.side.left a {
  color: var(--vermelho);
  text-decoration: none;
  font-weight: bold;
}

.side.left a:hover {
  text-decoration: underline;
}

.content {
  border: 3px solid var(--preto);
  padding: 1.5rem;
  background: var(--branco);
  box-shadow: 8px 8px 0 var(--vermelho);
  text-transform: uppercase;
}

.feature img {
  width: 100%;
  border: 3px solid var(--preto);
  margin-bottom: 1rem;
}

.grid-posts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 2rem;
}

.grid-posts article {
  border: 2px solid var(--preto);
  padding: 1rem;
  background: var(--branco);
}

.grid-posts a {
  color: var(--vermelho);
  text-decoration: none;
}

.grid-posts a:hover {
  text-decoration: underline;
}

footer {
  text-align: center;
  padding: 1rem;
  border-top: 3px solid var(--preto);
  font-family: var(--fonte-display);
}