:root {
  --color1: #f27227;
  --color2: #03a7ca;
  --color3: #90c745;
  --color4: #892b7f;
  --color5: #fdcc0d;
  --color1-light: #f2722755;
  --color2-light: #03a7ca55;
  --color3-light: #90c74555;
  --color4-light: #892b7f55;
  --color5-light: #fdcc0d55;
  --color-primary: #022;
  --color-secondary: #EFE;
  --duration: 1s;
  --nav-duration: calc(var(--duration) / 4);
  --ease: cubic-bezier(0.215, 0.61, 0.355, 1);
  --space: 1rem;
  --line-height: 1.5;
}

table {
  border-collapse: collapse;
}
td:first-child {
  white-space: nowrap;
}
td {
  padding: 0 .3em;
  border: 1px solid #444;
  vertical-align: top;
}

@font-face {
  font-family: 'Merry Notes';
  src: url('/img/Merry Notes.woff')  format('woff'),
    url('/img/Merry Notes.ttf')  format('truetype'),
    url("/img/Merry Notes.otf") format("opentype"),
}

body {
  padding: 0 1em;
  background-color: #fff;
  font-family: "Merry Notes", Arial, sans-serif;
  font-size: 20pt;
  line-height: 1.75em;
}

article {
  max-width: 900px;
  margin: 0 auto;
  hyphens: auto
}

article p {
  text-align: justify;
}

h1, .center {
  text-align: center
}

h1 {
  font-size: 2em
}

h2 {
  font-size: 1.6em
}

h3 {
  font-size: 1.4em
}

h4, h5, h6 {
  font-size: 1.25em
}

nav {
  display: block;
  width: 100%;
  margin: 2em auto 2em auto;
  position: sticky;
  top: 0;
  background-color: inherit;
  text-align: center;
  box-shadow: 0em 1.5em 1.1em #fff;
  z-index: 9;
}

nav ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
}
nav li {
  display: inline-block;
  margin: .25em;
}
nav li a {
  display: block;
  min-width: 7em;
  height: 3em;
  text-align: center;
  line-height: 3em;
  text-decoration: none;
}

nav a {
  display: inline-block;
  vertical-align: middle;
  transform: perspective(1px) translateZ(0px);
  box-shadow: rgba(0, 0, 0, 0) 0px 0px 1px;
  position: relative;
  transition-property: color;
  transition-duration: 0.5s;
  color: #335;
  font-weight: bold;
  border-radius: .5em;
}

nav a:hover, nav a:focus, nav a:active {
  color: white;
}

svg .bg {
  fill: #fff
}

.c1 {
  stroke: var(--color1)
}

.c2 {
  stroke: var(--color2)
}

.c3 {
  stroke: var(--color3)
}

.c4 {
  stroke: var(--color4)
}

.c5 {
  stroke: var(--color5)
}

nav li:nth-child(1) a.active {
  background-color: var(--color1-light)
}

nav li:nth-child(2) a.active {
  background-color: var(--color2-light)
}

nav li:nth-child(3) a.active {
  background-color: var(--color3-light)
}

nav li:nth-child(4) a.active {
  background-color: var(--color4-light)
}

nav li:nth-child(5) a.active {
  background-color: var(--color5-light)
}

nav li:nth-child(2) a::before {
  background-color: var(--color2)
}

nav li:nth-child(3) a::before {
  background-color: var(--color3)
}

nav li:nth-child(4) a::before {
  background-color: var(--color4)
}

nav li:nth-child(5) a::before {
  background-color: var(--color5)
}

nav li:nth-child(5) a:hover {
  color: green;
}

nav a::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0px;
  background-color: var(--color1);
  border-radius: inherit;
  transform: scaleY(0);
  transform-origin: 50% 100% 0px;
  transition-property: transform;
  transition-duration: 0.5s;
  transition-timing-function: ease-out;
}

nav a:hover::before, nav a:focus::before, nav a:active::before {
  transform: scaleY(1);
  transition-timing-function: cubic-bezier(0.52, 1.64, 0.37, 0.66);
}

.flip-box {
  perspective: 1000px;
  text-align: center;
}

.flip-box > img {
  max-width: 100%;
  transition: transform 0.8s;
  transform-style: preserve-3d;
}

@keyframes rotating {
  from { transform: rotateY(0deg) }
  to { transform: rotateY(360deg) }
}

.flip-box:hover > img {
  animation: rotating 2s linear infinite;
}

footer {
  background-color: #eee;
  text-align: center;
  position: absolute;
  left: 0;
  right: 0;
}

.nostyle > * {
  display: none
}

a {
  text-decoration: none
}

h1::selection, h2::selection, h3::selection {
  background-color: var(--color1-light)
}
p::selection {
  background-color: var(--color2-light)
}
p > *::selection, li::selection, tr *::selection {
  background-color: var(--color3-light)
}
footer::selection, nav *::selection {
  background-color: var(--color4-light)
}

@media (prefers-color-scheme: dark) {
  h1::selection, h2::selection, h3::selection {
    background-color: var(--color1)
  }
  td {
    border-color: #ccc;
  }
  p::selection {
    background-color: var(--color2)
  }
  p > *::selection, li::selection {
    background-color: var(--color3)
  }
  footer::selection, nav *::selection {
    background-color: var(--color4)
  }

  body {
    background-color: #555;
    color: #ddd
  }
  nav {
    box-shadow: 0em 1.5em 1.1em #555;
  }
  nav a {
    color: #bbf;
  }
  svg .bg {
    fill: #555
  }
  footer {
    background-color: #444;
    color: #ddd;
  }
  article a {
    color: #8cf;
  }
  article a:visited {
    color: #59f;
  }
}

#nav-toggle, .icon-toggle {
  display: none
}

.right {
  float: right;
  margin: 1em 0 1em 1em;
}

.left {
  float: left;
  margin: 1em 1em 1em 0;
}

article img.right, article img.left {
  max-width: 60%;
}

@media screen and (min-width: 800px) and (max-width: 1111px) {
  nav ul {
    font-size: 2.4vw
  }
  article img.right, article img.left {
    width: 100%;
    margin: 1em 0 1em 0;
    max-width: 100%;
  }
}

@media screen and (max-width: 799px) {
  #nav-toggle {
    position: fixed;
    height: 1px;
    width: 1px;
    overflow: hidden;
    clip: rect(1px, 1px, 1px, 1px);
    white-space: nowrap;
  }
  #nav-toggle + label {
    position: fixed;
    top: calc(var(--space) * 1.5);
    right: calc(var(--space) * 2);
    cursor: pointer;
    z-index: 2;
  }
  .icon-toggle {
    --size: calc(1rem + 4vmin);
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--size);
    height: var(--size);
    stroke-width: 6;
  }
  .icon-group {
    transform: translateX(0);
    transition: transform var(--nav-duration) var(--ease);
  }
  .icon-close {
    stroke: var(--color-secondary);
    transform: translateX(-100%);
  }
  article img.right, article img.left {
    width: 100%;
    margin: 1em 0 1em 0;
    max-width: 100%;
  }
  nav {
    position: fixed;
    top: 0;
    left: 0;
    display: flex;
    align-items: center;
    width: 100%;
    height: 100%;
    transform: translateX(-100%);
    transition: transform var(--nav-duration);
    z-index: 1;
    margin: 0;
  }
  nav:after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-primary);
    transform-origin: 0 50%;
    z-index: -1;
  }
  nav ul {
    font-size: 5vmin;
    width: 100%;
  }
  nav li {
    --border-size: 1vmin;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
  }
  nav li:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: var(--border-size);
    background-color: var(--color-secondary);
    transform-origin: 0 50%;
    transform: translateX(-100%) skew(15deg);
  }
  nav a {
    display: inline-block;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    color: var(--color-secondary);
    line-height: 1;
    text-decoration: none;
    user-select: none;
    padding: var(--space) calc(var(--space) * 2) calc(var(--space) + var(--border-size) / 2);
    transform: translateY(100%);
  }
  .main-content {
    margin: 6rem auto;
    max-width: 70ch;
    padding: 0 calc(var(--space) * 2);
    transform: translateX(0);
    transition: transform calc(var(--nav-duration) * 2) var(--ease);
  }
  .main-content > * + * {
    margin-top: calc(var(--space) * var(--line-height));
  }
  #nav-toggle:checked ~ label .icon-toggle .icon-group {
    transform: translateX(100%);
  }
  #nav-toggle:checked ~ .main-content {
    transform: translateX(10%);
  }
  #nav-toggle:checked ~ nav {
    transition-duration: 0s;
    transform: translateX(0);
  }
  #nav-toggle:checked ~ nav:after {
    animation: nav-bg var(--nav-duration) var(--ease) forwards;
  }
  #nav-toggle:checked ~ nav li:after {
    animation: nav-line var(--duration) var(--ease) forwards;
  }
  #nav-toggle:checked ~ nav a {
    animation: link-appear calc(var(--duration) * 1.5) var(--ease) forwards;
  }
  #nav-toggle:checked ~ nav li:nth-child(1):after, #nav-toggle:checked ~ nav li:nth-child(1) a {
    animation-delay: calc((var(--duration) / 2) * 1 * 0.125);
  }
  #nav-toggle:checked ~ nav li:nth-child(2):after, #nav-toggle:checked ~ nav li:nth-child(2) a {
    animation-delay: calc((var(--duration) / 2) * 2 * 0.125);
  }
  #nav-toggle:checked ~ nav li:nth-child(3):after, #nav-toggle:checked ~ nav li:nth-child(3) a {
    animation-delay: calc((var(--duration) / 2) * 3 * 0.125);
  }
  #nav-toggle:checked ~ nav li:nth-child(4):after, #nav-toggle:checked ~ nav li:nth-child(4) a {
    animation-delay: calc((var(--duration) / 2) * 4 * 0.125);
  }
  @keyframes nav-bg {
    from {
      transform: translateX(-100%) skewX(-15deg);
    }
    to {
      transform: translateX(0);
    }
  }
  @keyframes nav-line {
    0% {
      transform: scaleX(0);
      transform-origin: 0 50%;
    }
    35% {
      transform: scaleX(1.001);
      transform-origin: 0 50%;
    }
    65% {
      transform: scaleX(1.001);
      transform-origin: 100% 50%;
    }
    100% {
      transform: scaleX(0);
      transform-origin: 100% 50%;
    }
  }
  @keyframes link-appear {
    0%, 25% {
      transform: translateY(100%);
    }
    50%, 100% {
      transform: translateY(0);
    }
  }
}