:root {
   --border-color: rgba(50, 50, 50, 0.5);
   --back-color: rgba(0, 0, 0, 0.8);
 }
 
  a {
  -webkit-tap-highlight-color: transparent; /* Android & iOS */
  -webkit-tap-highlight-color: rgba(0,0,0,0); /* alt */
  text-decoration: none;
  color: #ddd;
  }
  .nav_bar .material-symbols-outlined {
  font-variation-settings:
  'FILL' 0,
  'wght' 400,
  'GRAD' 0,
  'opsz' 24;
  }
  .nav_bar summary .material-symbols-outlined, #close {
    font-size: 45px;
  }
  .nav_bar summary, #close {
    list-style: none;
    margin-top: 4px;
  }
  .nav_bar details[open] summary {
    display: none;
  }
  .top_bar * {

  }
  .top_bar {
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    z-index: 999;
    background-color: var(--back-color);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
  }
  .log_bar {
    position: relative;
    height: 10vh;
    min-height: 40px;
    max-height: 50px;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    gap: 20px;
    padding: 20px;
    font-size: 24px;
  }
  .logo {
    position: relative;
    background-image: url('/log.jpg');
    background-size: 150%;
    background-position-x: -15px;
    background-position-y: -7px;
    background-repeat: no-repeat;
    height: 60px;
    width: 60px;
    border-radius: 35%;
  }
  .nav_bar {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
  }
  .site_nav {
    overflow-x: auto;
    scroll-behavior: smooth;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    gap: 10px;
    padding: 5px;
  }
  .nav_op {
    height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding: 20px;
    padding-bottom: 10vh;
    overflow-y: auto;
    scroll-behavior: smooth;
    border: 1px solid green;
    font-size: 25px;
    margin: 10px;
  }
  .nitem {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 20px;
    min-width: 250px;
    width: 80vw;
    padding: 15px;
  }
  .nitem .material-symbols-outlined {
    font-size: 30px;
  }
  .nitem.active {
    color: #A67C52;
  }
  .nitem.active .material-symbols-outlined {
        font-variation-settings: 'FILL' 1;
  }
  .sitem {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 5px;
    padding-bottom: 5px;
    padding-top: 5px;
    border-bottom: 5px solid rgba(0, 0, 0, 0);
    border-radius: 5px;
    flex-shrink: 0;
  }
  .sitem.active {
    border-bottom: 5px solid #A67C52;
    border-radius: 5px;
    color: #A67C52;
  }
  .sitem.active .material-symbols-outlined {
    font-variation-settings: 'FILL' 1;
  }
  /*end_mo*/
  @media (min-width: 800px) {
    .main_nav {
    display: none;
  }
  }