@import url(https://fonts.googleapis.com/css?family=Poppins:wght@300,400,600,700,800,900&display=swap);

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    margin: 0;
    padding: 20px;
    display: flex;
    transition: background-color 0.3s, color 0.3s;
    overflow: hidden;
}

video{
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    top: 0;
    left: 0;
    z-index: -1;
}

#date-time {
    background-color: #fff;
    width: 150px;
    text-align: center;
    height: 120px;
    padding: 10px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    position: fixed;
}

.date-time {  
    position: fixed;  
    top: 20px;  
    right: 20px;  
    text-align: right;  
    color: #333;  
    display: flex;  
    flex-direction: column;  
}  

.large-time {  
    font-size: 34px;  
    font-weight: bold;  
    margin-bottom: 5px;  
}  

.small-time {  
    font-size: 20px;  
}


.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 80px;
    height: 100%;
    background: transparent;
    backdrop-filter: blur(40px);
    border-right: 2px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    color: #fff;
    transition: 0.5s;
    padding: 6px 14px;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar.active {
    width: 260px;
}

.sidebar .logo-menu {
    display: flex;
    align-items: center;
    width: 100%;
    height: 70px;
}

.sidebar .logo-menu .logo {
    font-size: 25px;
    color: #fff;
    pointer-events: none;
    opacity: 0;
    transition: 0.3s;
}

.sidebar.active .logo-menu .logo {
    opacity: 1;
    transition-delay: 0.2s;
}



.sidebar .logo-menu .toggle-btn {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    font-size: 22px;
    color: #fff;
    text-align: center;
    line-height: 40px;
    cursor: pointer;
    transition: 0.5s;
}

.sidebar.active .logo-menu .toggle-btn {
    left: 90%;
}



.sidebar .list {
    margin-top: 10px;
}

.sidebar .list-item {
    list-style: none;
    width: 100%;
    height: 50px;
    margin: 5px 0;
    line-height: 50px;
}

.list .list-item a {
    display: flex;
    align-items: center;
    font-size: 18px;
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    white-space: nowrap;
    transition: 0.5s;

}

.list .list-item.active a,
.list .list-item a:hover {
    background: rgba(255, 255, 255, 0.2);
}


.list .list-item a i {
    min-width: 50px;
    height: 50px;
    text-align: center;
    line-height: 50px;
}

.sidebar .link-name {
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.sidebar.active .link-name {
    opacity: 1;
    pointer-events: auto;
    transition-delay: calc(0.1s * var(--i));
}


.content {
    margin-left: 200px;
    padding: 1px 16px;
}

@media screen and (max-width: 700px) {
    .sidebar {
      width: 100%;
      height: auto;
      position: relative;
    }
    .sidebar a {float: left;}
    div.content {margin-left: 0;}
  }
  
  @media screen and (max-width: 400px) {
    .sidebar a {
      text-align: center;
      float: none;
    }
  }