body {
  margin: 0;
  font-family: Arial, sans-serif;
}

.site-header {
  width: 100%;
  background: #111;
  color: #fff;
  padding: 10px 20px;
  box-sizing: border-box;
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  width: 25%;
}

.site-logo img {
  max-height: 50px;
  height: auto;
  display: block;
  margin-left: 20px;
}

.site-nav {
  width: 50%;
  text-align: center;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav ul li {
  display: inline-block;
  margin: 0 15px;
}

.site-nav ul li a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
}

.site-nav ul li a:hover {
  color: #00ff88;
}

.site-social {
  width: 25%;
  text-align: right;
}

.site-social a {
  display: inline-block;
  margin-left: 10px;
  color: #fff;
  text-decoration: none;
  font-weight: bold;
  margin-right: 20px;
}

.site-social a:hover {
  color: #00ff88;
}

@media (max-width: 768px) {
  .site-header-inner {
    flex-direction: column;
    text-align: center;
  }

  .site-logo,
  .site-nav,
  .site-social {
    width: 100%;
    margin-bottom: 10px;
    text-align: center;
  }

  .site-nav ul li {
    display: block;
    margin: 10px 0;
  }
}