@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400&display=swap');
/* Roboto */
/* reset css */
*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
/* set up base */
html {
    font-size: 62.5%;
    font-family: "Roboto";
}

.display-none{
    display:none !important;
}

body {
    width: 100%;
    height: 100vh;
}
.main {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}
.main-video {
    z-index: 1;
    object-fit: cover;
    position:absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
.header {
    position:absolute;
    top: 0;
    width: 100%;
    height: 10%;
    z-index: 10;
    background-image: linear-gradient(180deg, rgba(0,0,0,0.8), transparent);
    display: flex;
    justify-content: space-between;
    padding: 28px 36px 0;
    /* margin-top: 28px; */
    /* box-shadow: 0px -50px 2px rgba(0, 0, 0, 0.2); */
}
/* logo */
.logo img {
    height: 120%;
}
/* middle navbar navigation */
.navigation {
    display: flex;
    justify-content:center;
    align-items: center;
}
.navigation a{
    text-decoration: none;
    font-size: 1.8rem;
    color: #fff;
    margin: 0 18px;
    font-weight: bold;
    transition: 0.5s;
    cursor: default;
}
.navigation a:hover {
    opacity: 0.5;
}
/* more */
#more {
    position: relative;
}
#more:hover #more-info {
    display: flex;
}
#more-info {
    position: absolute;
    display: block;
    flex-direction: column;
    background-color: rgba(255, 255, 255, 0.4);
    border-radius: 5px;
    top: 130%;
    left: -12px;
    padding:5px 10px;
    text-align: center;
    display:none;
    animation: scaleMore 0.4s;
    transform-origin: top;
}
#more-info::before {
    content: " ";
    width: 100%;
    height: 10px;
    background-color: transparent;
    position:absolute;
    top: -10px;
    left: 0;
}
@keyframes scaleMore {
    from {
        transform: scaleY(0)
    }
    to{
        transform: scaleY(1)
    }
}
#more-info a {
    margin: 3px;
}
/*======= right header ======*/
.action {
    display: flex;
    justify-content:center;
    align-items:center;
}
.action button {
    margin: 0 16px;
    padding: 6px;
    outline: none;
    transition: 0.5s;
}
.action button:hover {
    opacity : 0.5;
}
/* switch */
#switch-btn { 
    background-color: transparent;
    border: none;
}
.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
}
/* Hide default HTML checkbox */
.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}
/* The slider */
.slider-btn {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: black;
    -webkit-transition: .4s;
    transition: .4s;
    border-radius: 34px;
}

.slider-btn:before {
    position: absolute;
    border-radius: 50%;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 2px;
    background-color: white;
    -webkit-transition: .4s;
    transition: .4s;
}

input:checked + .slider-btn {
    background-color: #f3a952;
}

input:focus + .slider-btn {
    box-shadow: 0 0 1px #2196F3;
}
  
input:checked + .slider-btn:before {
    -webkit-transform: translateX(26px);
    -ms-transform: translateX(26px);
    transform: translateX(26px);
}
/* zoom button */
#zoom {
    border:none;
    background-color: transparent;
    color : #fff;
    border-radius: 35%;
}
.action button:nth-child(3) {
    background-color:transparent;
    color : #fff !important;
    border-radius:16px;
    border-color: #fff !important;
    width: 80px;
    border-width: 1px;
    font-size: 1.4rem;
}
.action button:nth-child(4) {
    background-color:transparent;
    color : #fff !important;
    border-radius:22px;
    border-color: #fff !important;
    width: 120px;
    height: 50px;
    border-width: 1px;
    font-size: 1.8rem;
}
.action button:nth-child(5) {
    background-color:transparent;
    color : #fff !important;
    font-size: 2rem;
    font-weight: bold;
    border: none;
}
/* ======================footer=================== */
.footer {
    position :absolute;
    bottom:0;
    width: 100%;
    z-index:10;
    display:flex;
    height: 15%;
    overflow: hidden;
    align-items: center;
    padding: 0 26px;
    margin-bottom: 16px;
}
.music-info {
    display:flex;
    align-items: center;
    cursor: default;
}
.music-info span:nth-child(1) {
    font-size: 1.4rem;
    color: #fff ;
    opacity: 0.5;
    margin-left:25px;
    margin-right: 10px;
}
#music-icon p {
    color: #fff ;
    opacity: 0.5;
    font-size: 1.4rem;
    cursor: default;
}
#music-icon img {
    margin-left: 0px;
    width: 100px;
    cursor: default;
}
/* controls */
.control {
    display:flex;
    align-items: center;
    position:absolute;
    left:50%;
    transform: translateX(-50%);
}
.control svg:hover {
    transition: .4s;
    opacity: 0.5;
}
#pause-btn {
    display:none;
}
/* +================================= */
/* day night effect */
#day-video {
    opacity:1;
    transition: 2s linear;
}
#night-video {
    opacity:0;
    transition: 2s linear;
}