* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  
  -moz-user-select: none;
  -webkit-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
  
:root {
  --text-color: rgb(255,255,255,0.87);
  --bg-url: rgb(17,17,17);
  --stroke-color: rgba(255, 255, 255,);
  --surface-color: rgba(255, 255, 255, 0.3);
  --surface-color-hover: rgba(255, 255, 255, 0.6);
  --highlight-color: rgba(255, 255, 255, 0.2);
  --switch-bg-url: url(./assets/moon-stars.svg);
}
  
.space {
  --text-color: white;
  --bg-url: url(./assets/bg-mobile-space.png);
  --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, 0.2);
  --switch-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);
}
/*
.skeleton {
  animation: skeleton-loading 1s linear infinite alternate;
}

@keyframes skeleton-loading {
  0% {
    background-color: #4C4C4C;
  }
  100% {
    background-color: #BFBFBF;
  }
}

.skeleton-text {
  width: 100%;
  height: .5rem;
  margin-bottom: .25rem;
  border-radius: .125rem;
}
*/
.wrapper {
  display: flex;
  justify-content: center;
  flex-direction: column;
  align-items: center;
  width: 100%;
  padding: 0 32px;
  margin: 56px auto 0px;
  gap: 32px;
}

hero {
  font-size: 8rem;
}

.wrapper img {
  width: 400px;
  height: 400px;
}

#hero-bg img {
  display: none;
}

#container {
  width: 100%;
  max-width: 588px;
  margin: 56px auto 0px;
  padding: 0 24px;
}
  
#button-container {
  position: relative;
  display: flex;
  margin: 8px auto;
}

/* switch */
#switch {
  position: absolute;
  width: 64px;
  right: 0;
}
  
#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 0.2s;
}
  
.space #switch button {
  animation: slide-in 0.2s forwards;
}
  
#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;
}
  
/* profile */
#profile {
  text-align: center;
  padding: 24px;
}

#profile img {
  width: 112px;
}
  
#profile h1 {
  font-size: 32px;
  font-weight: 600;
  line-height: 32px;
  margin-top: 10px;
}

#profile h3 {
  font-size: 24px;
  font-weight: 500;
  line-height: 24px;
  margin-top: 8px;
}

#profile p {
  font-size: 16px;
  font-weight: 400;
  line-height: 16px;
  margin-top: 4px;
}

  
/* 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;
  
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  
  text-decoration: none;
  font-weight: 500;
  
  transition: background 0.2s;
}
  
/* pseudo-selector */
ul li a:hover {
  background: var(--surface-color-hover);
  border: 1.5px solid var(--text-color);
}

ul li a img {
  padding: 0px 4px 0px 2px;
}

#black_space {
  padding-right: 10px;
}

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

  padding: 24px 0;

  font-size: 24px;
}

#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 0;
  text-align: center;
  font-size: 14px;
}

/* media queries */
@media (min-width: 700px) {
  .space {
    --bg-url: url(./assets/bg-desktop-space.png);
  }
}

@media (min-width: 1130px) {

  #hero-bg img {
    display: flex;
    position: absolute;
    margin-top: 100px;
    width: 300px;
    right: 20px;
    -webkit-animation: updown 3s linear infinite;
    animation: updown 3s linear infinite;
  }
}

@media (min-width: 1350px) {

  #hero-bg img {
    display: flex;
    position: absolute;
    margin-top: 100px;
    width: 300px;
    right: 97.5px;
    -webkit-animation: updown 3s linear infinite;
    animation: updown 3s linear infinite;
  }
}

@media (min-width: 1660px) {

  #hero-bg img {
    display: flex;
    position: absolute;
    width: 400px;
    right: 130px;
    -webkit-animation: updown 3s linear infinite;
    animation: updown 3s linear infinite;
  }
}

/* animation */
@keyframes updown {
  0% {
      transform: translateY(-20px);
  }
  50% {
      transform: translateY(20px);
  }
  100% {
      transform: translateY(-20px);
  }
}

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