*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
:root{
  --text-color: white;
  --bg-url: url(assets/bg-mobile.jpg);
  --stroke-color: rgba(255, 255, 255, 0.5);
  --surface-color: rgba(255, 255, 255, 0.05);
  --surface-color-hover: rgba(0, 0, 0, 0.02);
  --highlight-color: rgba(255, 255, 255, 0.02);
  --swtich-bg-url: url(./assets/moon-stars.svg);
}
.light{
  --text-color: black;
  --bg-url: url(assets/bg-mobile-light.jpg);
  --stroke-color: rgba(0, 0, 0, 0.5);
  --surface-color: rgba(0, 0, 0, 0.05);
  --surface-color-hover: rgba(255, 255, 255, 0.02);
  --highlight-color: rgba(0, 0, 0, 0.1);
  --swtich-bg-url: url(./assets/sun.svg);
}
body {
  background: var(--bg-url) no-repeat top center/cover;
  height: 100vh;
}
body *{
  font-family: 'Inter', sans-serif;
  color: var(--text-color);
}
#container {
  width: 100%;
  max-width: 588px;
  margin: auto;
  margin-top: 56px;
  padding: 0 24px;
}
#profile{
  text-align: center;
  padding: 24px;
}
#profile img{
  width: 112px;
}
#profile p{
  font-weight: 500;
  line-height: 24px;
  margin-top: 8px;
}
#switch{
  position: relative;
  width: 64px;
  margin: 4px auto;
}
#switch button{
  width: 32px;
  height: 32px;
  background: white var(--swtich-bg-url) no-repeat center;
  border: 0;
  border-radius: 50%;
  position: absolute;
  z-index: 1;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  animation: slide-back 0.2s;
}
#switch button:hover{
  outline: 8px solid var(--highlight-color);
}
#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;
}
.light #switch button{
  animation: slide-in 0.2s forwards;
}
ul{
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 24px 0;
}
ul li a{
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--surface-color);
  padding: 16px 24px;
  border: 1px solid var(--stroke-color);
  border-radius: 8px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  text-decoration: none;
  font-weight: 500;
  transition: background 0.2s;
}
ul li a:hover{
  background: var(--surface-color-hover);
  border: 1.5px solid var(--text-color);;
}
#social-links{
  display: flex;
  padding: 24px 0;
  font-size: 24px;
  justify-content: center;
}
#social-links a{
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  transition: background 0.2s;
  border-radius: 50%;
}
#social-links a:hover{
  background: var(--highlight-color);
}
footer{
  padding: 24px;
  text-align: center;
}

@media (min-width: 700px){
  :root{
    --bg-url: url(./assets/bg-desktop.jpg);
  }
  .light{
    --bg-url: url(./assets/bg-desktop-light.jpg)
  }
}

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

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