body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #f0f0f0;
  color: #222;
}

a {
  color: #0066cc;
  text-decoration: none;
}

.container {
  max-width: 900px;
  margin: auto;
  padding: 20px;
}

/* ===== layouts ===== */
.layout-minimalista { background: #ffffff; }
.layout-clasico { background: #eef; font-family: Georgia; }
.layout-moderno { background: #111; color: #eee; }
.layout-rock { background: #000; color: #f00; }
.layout-cyberpunk { background: #0a0014; color: #00ffff; }
.layout-windowsxp { background: #1f6fd2; color: #000; }
.layout-linux { background: #111; color: #8ae234; }

/* ===== bloques ===== */
.post {
  background: #ffffff;
  border: 1px solid #ccc;
  padding: 12px;
  margin-bottom: 15px;
}

.profile-box {
  background: #ffffff;
  border: 1px solid #999;
  padding: 15px;
  margin-bottom: 20px;
}

.profile-box img {
  width: 100px;
}