body {
  font-family: system-ui, sans-serif;
  background: #f7f7f7;
  color: #111;
  margin: 0;
  min-height: 100vh;

  display: flex;
  justify-content: center;
  align-items: center;
}

/* CONTENEDOR PRINCIPAL */
main {
  max-width: 700px;
  width: 100%;
  padding: 64px 32px;
  text-align: center;
}

/* HEADER */
header {
  margin-bottom: 80px;
}

header h1 {
  font-size: 3rem;
  letter-spacing: 4px;
  margin-bottom: 12px;
}

header p {
  color: #666;
  font-size: 1rem;
}

/* POSTS */
.post {
  margin-bottom: 72px;
}

.post img,
article img {
  width: 140px;
  height: 140px;
  object-fit: cover;
  display: block;
  margin: 0 auto 16px auto;
  border-radius: 8px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.post img:hover,
article img:hover {
  transform: scale(1.05);
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

/* LINKS */
a {
  color: #000;
  text-decoration: none;
  border-bottom: 2px solid #000;
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}

a:hover {
  color: #555;
  border-color: #555;
}