html {
  background: #17120d;
}

body#main_body {
  margin: 0;
  padding: 24px 12px;
  color: #332515;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  line-height: 1.55;
  background:
    radial-gradient(circle at 50% 0, rgba(181, 139, 65, 0.28), rgba(23, 18, 13, 0) 260px),
    #17120d;
}

a {
  color: #8f2b18;
}

a:hover {
  color: #ba4b26;
}

#container {
  width: min(940px, 100%);
  margin: 0 auto;
  background: #f4edda;
  border: 1px solid #6f4a25;
  box-shadow: 0 12px 38px rgba(0, 0, 0, 0.52);
}

#header {
  position: relative;
  min-height: 180px;
  background: #2a2117 url(images/kopf_460.gif) center top / cover no-repeat;
  border-bottom: 6px solid #a37631;
}

#key_visual {
  min-height: 180px;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.36), rgba(0, 0, 0, 0.04));
}

#logo {
  position: absolute;
  left: 28px;
  bottom: 22px;
}

#logo a {
  display: block;
  width: 246px;
  height: 82px;
  background: url(images/plg.jpg) left center / contain no-repeat;
}

#main_container {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 0;
  background: linear-gradient(90deg, #efe3c4 0, #efe3c4 230px, #fffaf0 230px);
}

#main_nav_container {
  grid-column: 1;
  padding: 22px 16px;
}

#main_nav_list {
  list-style: none;
  margin: 0;
  padding: 0;
}

#main_nav_list li {
  margin: 0 0 7px;
}

.main_nav_item,
.main_nav_active_item {
  display: block;
  padding: 9px 11px;
  color: #f7ead0;
  font-weight: bold;
  text-decoration: none;
  background: #5d341a;
  border: 1px solid #7a5128;
}

.main_nav_item:hover,
.main_nav_active_item {
  color: #ffffff;
  background: #9a371c;
}

#navitop,
#navibottom,
#left_column_container {
  display: none;
}

#slogan {
  grid-column: 2;
  padding: 18px 28px 0;
  color: #8d6b35;
  font-size: 18px;
  font-weight: bold;
}

.hidden {
  position: static;
}

#sub_container2 {
  grid-column: 2;
  padding: 16px 28px 34px;
}

#content_container {
  min-height: 250px;
}

.content img,
#content_container img {
  max-width: 100%;
  height: auto;
}

#footer {
  color: #ead9b9;
  background: #2b2117;
  border-top: 1px solid #8c642e;
}

#footer_text {
  padding: 16px 28px;
  text-align: center;
  font-size: 12px;
}

@media (max-width: 720px) {
  body#main_body {
    padding: 0;
  }

  #container {
    border-left: 0;
    border-right: 0;
  }

  #header,
  #key_visual {
    min-height: 138px;
  }

  #logo {
    left: 18px;
    bottom: 16px;
  }

  #logo a {
    width: 200px;
    height: 66px;
  }

  #main_container {
    display: block;
    background: #fffaf0;
  }

  #main_nav_container {
    padding: 12px;
    background: #efe3c4;
  }

  #main_nav_list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(138px, 1fr));
    gap: 7px;
  }

  #main_nav_list li {
    margin: 0;
  }

  #slogan,
  #sub_container2 {
    padding-left: 16px;
    padding-right: 16px;
  }
}