*{
    padding: 16px;
    margin: 16px;
}

:root{
    --background-color: white;
    --text-color: black;

    --shadow-color-dark: lightgray;

    --font-size-small: 0.9rem;
    --font-size-normal : 1rem;
    --font-size-large: 1.5rem;
    --font-size-xl: 2rem;

    /* --font-weight-high: 900;
    --font-weight-regular: 500;
    --font-weight-low: 300; */
}

main, header, footer{
    margin: 0%;
    padding: 0%;
}

body{
    font-family: Arial, Helvetica, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
}

.lang svg{
    margin: 0%;
}
svg{
    margin: 2%;
    padding: 0%;
}

.button{
    background-color: green;
    border-radius: 2rem;
}



.cards{
    margin: 10%;
    padding: 0%;
    margin-top: 0;
    margin-bottom: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
}
.cards div{
    width: 30%;
}
.card-text h3{
    font-size: var(--font-size-large);
    margin: 0%;
    padding: 0%;
}
.card-text p{
    margin: 0%;
    padding: 0%;
    margin-bottom: 4%;
    margin-top: 4%;
    font-size: var(--font-size-small);
}
.card-image img{
    width: 100%;
    margin: 0%;
    padding: 0%;
}

.grid-card{
    display: grid;
    grid-template-columns: repeat(3, 30%);
    justify-content: center;
    margin: 0%;
    padding: 0%;
}
.grid-cards{
    padding: 0%;
    margin: 0%;
    transition: transform 0.5s ease-in-out, box-shadow 0.5s ease-in-out;
}
.grid-cards:hover{
    transform: translateY(-10px) ;
    box-shadow: 3px 3px 8px 9px var(--shadow-color-dark);
    
}
.grid-cards-image{
    margin: 0%;
    padding: 0%;
}
.grid-cards-image img{
    max-width: 100%;
}
.grid-cards-text{
    margin: 0%;
    padding: 0%;
    text-align: center;
}
.grid-cards-text h4{
    margin: 0;
    padding: 0%;
    font-size: var(--font-size-large);
}
.grid-cards-text p{
    margin: 0%;
    font-size: var(--font-size-small);
}

.icon{
    width: 2rem;
    margin: 0%;
    padding: 0%;
}

.header p{
    
    display: inline-block;
    margin: 0%;
    padding: 0%;
}




/* .header{
    /* font-size: 30px; 
    font-size: var(--font-size-xl);
} */
/* .image-background{
    position: relative;
}
.lang{
    position: absolute;
    /* float: right; 
    top: 10rem;
    right: 10rem;
}
.logo{
    position: absolute;
    /* top: 80px; 
    left: 6rem;
    top: 4rem;
}
.avater{
    position: absolute;
    top: 24.9rem;
    right: 15rem;
}
.main{
    text-align: center;
    
}
.main h1{
    position: absolute;
    top: 12rem;
    left: 22rem;
    font-size: 350%;
}
.main h5{
    position: absolute;
    top: 16rem;
    font-size: var(--font-size-large);
    left: 26rem;
}
.main button{
    position: absolute;
    top: 20rem;
    left: 36rem;
}
.main p{
    position: absolute;
    top: 23rem;
    left: 500px;
}
*/
.main, .header, .logo, .logo img, .lang, .intro{
    margin: 0%;
    padding: 0%;
} 
header{
    background-image: url(backgroung-image-vpn.avif);
    
    background-size: 100% 100%;
    background-repeat: no-repeat;
}
.logo{
    margin-left: 1rem;
    display: inline-block;
}
.logo img{
    width: 12rem;
}
.lang{
    display: inline-block;
    float: right;
    margin-top: 2rem;
    margin-right: 1.5rem;
    font-size: 1.5rem;
}
.main-heading{
    text-align: center;
    margin: 0%;
    padding: 0%;
}
.main-heading h1{
    margin: 0%;
    padding: 0%;
    font-size: 4rem;
}
.main-heading h5{
    padding: 0%;
    margin: 0;
    font-size: 1.5rem;
}
.main-heading p{
    margin: 0%;
    padding: 0%;
}
.avater{
    margin: 0%;
    padding: 0%;
    background-image: url(homepage-pingzhu-hero-figures-v2-opt__1___3_.avif);
    background-repeat: no-repeat;
    background-size: cover;
    height: 30rem;
}

.link {
    text-align: center;
}

/* .server-arround-globe{
    position: absolute;
    bottom: 550px;
    left: 350px;
   
    margin: 0%; 
    padding: 0%;

    font-size: 30px;
}  */
/* 
.time{
    position: absolute;
    bottom: 200px;
    left: 900px;
    /* float: right; 
    margin: 0%;
    padding: 0%;  
}

.time div h3,
.time div p{
    margin: 0%;
    padding: 0%;
}

.time div h3{
    font-size: 40px;
}

#footer a{
    position: absolute;
    bottom: 100px;
    left: 450px;
}

#footer{
    position: relative;
    text-align: center;
} */

#footer{
    margin-top: 4rem;
    background-image: url(map-background.jpg);
    background-size: 100%;
    width: 100%;
    height:80vmin;
    background-repeat: no-repeat;
}
 
.local-time,
.local-time h3,
.local-time p{
    display: inline-block;
    padding: 0%;
    margin: 0%;
}
.server-arround-globe{
    text-align: center;
}
.time{
    float: right;
}
.local-time h3{
    font-size: 3rem;
    margin-right: 5rem;
}
#footer h2{
    font-size: 2rem;
}
.map a{
    margin-top: 100%;
    margin-right: 50%;
}


@media (prefers-color-scheme: dark) {
    body {
    --background-color: black;
    --text-color: white;
    --shadow-color-dark: royalblue;
    }
    #footer{
        color: black;
    }
}


@media (width<900px){
    *{
        margin: 0%;
        padding: 0%;
    }
    .button{
        font-size: 1rem;
        padding: 2%;
    }
    .avater{
        height: 20rem;
    }
    
}

@media (width<600px){
    .card-text h3{
        font-size: 1rem;
    }
    .card-text p{
        font-size: 0.5rem;
    }
    .button{
        font-size: 0.5rem;
    }
    .logo img{
        width: 5rem;
    }
    .lang p{
        font-size: 0.8rem;
    }
    .lang{
        margin-top: 0%;
    }
    .main-heading h1{
        font-size: 1rem;
    }
    .main-heading h5{
        font-size: 0.5rem;
    }
    .main-heading p{
        font-size: 0.5rem;
    }
    .avater{
        height: 10rem;
    }
    .grid-cards-text h4{
        font-size: 1rem;
    }
    .grid-cards-text p{
        font-size: 0.5rem;
    }
    .local-time h3{
        font-size: 1rem;
        /* margin-right: 5rem; */
    }
    #footer h2{
        margin-top: 20px;
        font-size: 1rem;
    }
    #footer{
        height: 100vmax;
    }
}