*{
  margin: 0;
  padding: 0;
  font-family: Inter;
  scroll-margin: 7rem;
  scroll-behavior: smooth;
  color: var(--text);
}

:root{
  --primary: rgb(60, 60, 255);
  --secondary: rgb(100, 100, 255);
  --tertiary: rgb(140, 140, 255);
  --header: black;
  --text: rgb(25, 25, 25);
  --glass-bg: rgba(255, 255, 255, .3);
  --bg: rgba(240, 240, 240);
  --bg-darker: rgba(220, 220, 220);
  --border: 1px solid rgb(200, 200, 200);
  --border-shadow: 0 0 .5rem rgb(200, 200, 200) inset;
  --hover-bg: rgba(0, 0, 0, 0.1);
  --shadow: 0 2.5px 5px rgba(0, 0, 0, .2);
  --text-shadow: 0 1px 1px rgba(0, 0, 0, .2);
}

h1,h2,h3{color: var(--header);}
h1{font-size: 3rem;} h2{font-size: 2rem;} h3{font-size: 1.5rem;} p{color: var(--text);}
br{line-height: 2rem;}

a{
  text-decoration: none;
  color: var(--primary);
}

a:hover{
  color: var(--secondary);
  text-decoration: underline;
}

body{
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--body-bg);
  height: 100vh;
}

button{
  color: white;
  background: linear-gradient(var(--secondary), var(--primary));
  padding: 1rem;
  font-size: 1rem;
  border-radius: .8rem;
  border: 1px solid var(--secondary);
  cursor: pointer;
  transition: all 100ms, scale 100ms;
  box-shadow: 0px 1px 1px var(--tertiary) inset, 0 -1px 1px var(--tertiary) inset, 1px 0px 1px var(--tertiary) inset, -1px 0px 1px var(--tertiary) inset;
  user-select: none;
}

/* button:hover befindet sich unten im @media */

ul {
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
  text-align: left;
  list-style-position: inside;
}

nav{
  position: fixed;
  top: 1rem;
  z-index: 1000;
  display: flex;
  padding: .2rem;
  background: var(--glass-bg);
  backdrop-filter: blur(4px);
  border-radius: 9999px;
  border: var(--border);
  box-shadow: var(--border-shadow), var(--shadow);
  user-select: none;
}

nav ul{
  list-style-type: none;
  display: flex;
  align-items: center;
  gap: .2rem;
}

nav ul li a{
  display: flex;
  padding: 1rem;
  color: var(--header);
  text-decoration: none;
  transition: all 50ms;
  border: 1px solid transparent;
}

nav ul li a:hover{
  background: var(--hover-bg);
  border-radius: 9999px;
  color: var(--header);
  text-decoration: none;
}

.nav-active{
  color: white;
  background: linear-gradient(var(--secondary), var(--primary));
  padding: 1rem;
  font-size: 1rem;
  border-radius: 9999px;
  border: 1px solid var(--secondary);
  cursor: pointer;
  transition: all 150ms;
  box-shadow: 0px 1px 1px var(--tertiary) inset, 0 -1px 1px var(--tertiary) inset, 1px 0px 1px var(--tertiary) inset, -1px 0px 1px var(--tertiary) inset;
}

.nav-active:hover{
  background: linear-gradient(var(--secondary), var(--primary));
  cursor: default;
  color: white;
}

.nav-active:active{
  opacity: 1;
}

table{
  table-layout: fixed;
  width: 100%;
  border: var(--border);
  background: var(--bg-darker);
  border-radius: .8rem;
  user-select: none;
}

th, td{
  transition: all 400ms;
  padding: .5rem;
}

th{
  padding: .5rem;
}

tr:nth-child(even){
  background: var(--bg);
}

.content-column{
  margin-top: 6rem;
  width: min(calc(100% - 0rem), 55rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  padding-bottom: 1rem;
}

.main{
  width: calc(100% - 4rem);
  text-align: center;
  padding: 1rem;
  background: var(--bg);
  border: var(--border);
  border-radius: 1rem;
  flex: 1;
}

.button-container{
  display: flex;
  gap: .5rem;
  justify-content: center;
}

table button{
  width: 100%;
  padding: .5rem;
  border-radius: .5rem;
  border: 1px solid var(--secondary);
}

.covered{
  scale: 1.2;
  filter: blur(3px);
  opacity: 0;
  cursor: help;
}

.covered:hover{
  opacity: 1;
  filter: blur(0px);
  scale: 1;
}

.scroll-button{
  scale: 0;
  opacity: 0;
  transition: all 300ms, opacity 50ms;
}
.visible{
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0;
  opacity: .33;
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  z-index: 1000;
  width: 3rem;
  height: 3rem;
  border-radius: 100%;
  scale: 1;
  transition: all 300ms, opacity 50ms;
}

footer{
  border-top: var(--border);
  background: var(--bg);
  width: calc(100% - 1rem);
  text-align: center;
  padding: .5rem;
  margin-top: auto;
}

.list{
  list-style-type: disc;
  margin: center;
  font-size: 1rem;
}

.under-list{
  list-style-type: circle;
  margin-left: 0;
  padding-left: 40px;
  font-size: .9rem;
  text-align: left;
}

.square-list{
  list-style-type: square;
  padding-left: 2rem;
  font-size: 1rem;
}

.underline{
  text-decoration: underline;
}

.hover-underline{
  text-decoration: underline;
  cursor: help;
}

.hidden-text{
  color: red;
  visibility: hidden;
}

.hover-underline:hover + .hidden-text,
.hover-underline:focus ~ .hidden-text{
  visibility: visible;
}

.bold{
  font-weight: bold;
}

@media (hover: hover){
  button:hover{
    opacity: 1;
    cursor: wait;
  }
}

@media (prefers-color-scheme: dark){
  :root{
    --header: white;
    --text: rgb(230, 230, 230);
    --glass-bg: rgba(0, 0, 0, .3);
    --bg: rgba(15, 15, 25);
    --bg-darker: rgba(10, 10, 20);
    --body-bg: rgba(0, 0, 5);
    --border: 1px solid rgb(50, 50, 60);
    --border-shadow: 0 0 .5rem rgb(50, 50, 60) inset;
    --hover-bg: rgba(255, 255, 255, 0.1);
    --shadow: 0 2.5px 5px rgba(0, 0, 0, .2);
    --text-shadow: none;
  }
  a{
    color: var(--secondary);
  }
  a:hover{
    color: var(--tertiary);
  }
}

@keyframes popIn {
  0%{
    scale: .8 .8;
    opacity: 0;
    filter: blur(10px);
  }
  25%{
    scale: 1.1;
    opacity: 1;
    filter: blur(0px);
  }
  100%{
    scale: 1;
    opacity: 1;
    filter: blur(0px);
  }
}