*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root{
    --text-color: rgb(0, 0, 0);
    --bg-url:url(./img/bg-desktop\ \(1\).png);
    --stroke-color:rgba(255, 0, 55, 0.74);
    --surface-color: rgba(245, 0, 0, 0.671);
    --surface-color-hover: rgba(163, 0, 0, 0.76);
    --highlight-color: rgba(226, 62, 62, 0.795);
    --switch-bg-url: url(/img/moon-stars.svg);
    
}

.light {
    --text-color: rgb(0, 0, 0);
    --bg-url:url(./img/bg-desktop-light.jpg);
    --stroke-color: rgba(0,0,0,0.5) ;
    --surface-color: rgba(59, 66, 170, 0.767);
    --surface-color-hover: rgb(54, 66, 233);
    --highlight-color: rgba(0, 0, 0, 0.534);
    --switch-bg-url: url(/img/sun.svg);
}

body {
    background: var(--bg-url);
    background-size: cover; 
    background-position: center;
    background-repeat: no-repeat;
    width: 100%;
    height: 50rem;
}

body *{
    font-family: "Inter", sans-serif;
    color: var(--text-color);
}

#container{
    width: 100%;
    max-width: 588px;
    margin: auto;
    margin: auto;

    padding-top: 56px;
}

/* profile*/

#profile{
    text-align: center;
    padding: 24px;
}

#profile img{
    width: 112px;
}

#profile p {
    font-weight: 500;
    line-height: 24px;
    margin-top: 8px;
}

/* switch */

#switch {
    position: relative;
    width: 64px;

    margin: 4px auto;

}

#switch button{
    width: 32px;
    height: 32px;
    background: white var(--switch-bg-url) no-repeat center;
    border: 0;
    border-radius: 50%;
    
    position: absolute;
    top: 50%;
    left: 0;
    z-index: 1;
    transform: translateY(-50%);

    animation: slide-back 0.4s ;
}

#switch button:hover{
    outline: 8px solid var(--highlight-color);
}

.light #switch button{
    animation: slide-in 0.5s forwards;
}

#switch span{
    display: block;
    width: 64px;
    height: 24px;
    background: var(--surface-color);
    border: 1px solid var(--stroke-color);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border-radius: 9999px;
    
}

/* links */
ul{
    list-style: none;

    display: flex;
    flex-direction: column;
    gap: 16px;

    padding: 24px 0;
}

ul li a{
    display: flex;
    align-items: center;
    justify-content: center;

    padding: 16px 24px;

    background: var(--surface-color);
    border: 1px solid var(--stroke-color);
    border-radius: 8px;
    -webkit-background-filter: blur(4px);

    text-decoration: none;
    font-weight: 500;
    transition: background 0.5s;
}

/* pseudo-selector*/
ul li a:hover{
    background: var(--surface-color-hover);
    border: 1.5px solid --text-color;

}

/* social links */
#social-links{
    display: flex;
    gap: 16px;
    justify-content: center;

    padding: 29px 0;

    font-size: 40px;
    
    
}

#social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;

    transition: background 0.5s;
    border-radius: 50%;
}

#social-links a:hover{
    background: var(--highlight-color);
}

footer{
    padding: 24px 0;
    text-align: center;
    color: brown;

}

@keyframes slide-in{
    from{
      left:0;
    }
    to{
      left:50%;
    }
  }
  
  @keyframes slide-back{
    from{
      left: 50%;
    }
    to{
      left: 0;
    }
  }