/* Whole document */
:root {
  --font-size: 12px;
  --padding: 60px;
  --paddingHalf: 30px;
  --shadow: 15px;
  --pad-xs: 6px;
  --pad-s: 8px;
  --pad-m: 10px;
  --pad-l: 12px;

  --s: 2;
  --N: 180px;
  --margin: 360px;

  --canvas-direction: row;
  --canvas-gap: var(--padding);
  --text-columns: 2;

  --black: rgb(0, 10, 20);
  --white: rgb(255, 240, 220);
  --red: rgb(180, 40, 40);
  --green: rgb(110, 150, 80);
  --blue: rgb(80, 110, 150);
  --yellow: rgb(220, 170, 60);

  --transition-time: 0.2s;
}

[data-s="2"] {
  --canvas-direction: row;
  --canvas-gap: var(--padding);
}

[data-s="3"] {
  --canvas-direction: column-reverse;
  --canvas-gap: 0;
}

[data-font-size="small"] {
  --text-columns: 2;
}

[data-font-size="medium"] {
  --text-columns: 2;
}

[data-font-size="large"] {
  --text-columns: 1;
}

@font-face {
  font-family: spaced-times;
  src: url(https://www.schoffers.com/stellar-interferometry/assets/fonts/spaced-times.ttf);
}

html {
  background-color: var(--black);
}

html,
body {
  margin: 0;
  padding: 0;
  color: var(--white);
  font-family: spaced-times, serif;
  font-smooth: never;
  -webkit-font-smoothing: none;
}

/* body {
  height: 100vh;
  overflow-y: scroll;
  -webkit-overflow-scrolling: touch;
}

body::-webkit-scrollbar {
  width: var(--margin);
  background-color: var(--white);
}

body::-webkit-scrollbar-thumb {
  background-color: var(--blue);
}

body::-webkit-scrollbar-track {
  background-color: var(--white);
} */

main {
  margin-bottom: var(--margin);
  padding: 0 var(--pad-l) var(--pad-l) var(--pad-l);
}

/* Text */
h1,
h2 {
  height: fit-content;
  width: fit-content;
  max-width: 75vw;
  margin: 0;
  position: sticky;
  top: 0;
}

h1 {
  font-size: calc(var(--font-size) * 6);
}

h2 {
  font-size: calc(var(--font-size) * 4);
}

h3 {
  font-size: calc(var(--font-size) * 2);
  margin: 0;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  white-space: nowrap;
  z-index: 0;
}

p,
.text {
  font-size: var(--font-size);
  line-height: calc(var(--font-size) * 2);
}

a {
  text-decoration: none;
  text-decoration: underline;
  text-underline-position: under;
  text-decoration-color: var(--blue);
  /* text-underline-offset: calc(var(--font-size) / 2); */
  color: var(--white);
}

a.to-element-back {
  text-decoration-color: var(--green);
}

a.to-element-forward {
  text-decoration-color: var(--blue);
}

ul {
  list-style-type: disc;
  margin-block-start: var(--font-size);
  margin-block-end: var(--font-size);
  padding-inline-start: calc(var(--font-size) * 2);
}

li {
  break-inside: avoid;
}

/* Inputs */
input[type="range"] {
  /* removing default appearance */
  appearance: none;
  /* creating new design */
  cursor: pointer;
  z-index: 1;
  width: var(--N);
  height: calc(2 * var(--pad-l));
  background-color: transparent;
}

input[type="range"]::-webkit-slider-runnable-track {
  width: 100%;
  height: calc(1px * var(--s));
  background: var(--white);
  box-shadow:
    0px calc(1px * var(--s)) 0px 0px var(--black),
    0px calc(-1px * var(--s)) 0px 0px var(--black);
}

input[type="range"]::-webkit-slider-thumb {
  /* removing default appearance */
  -webkit-appearance: none;
  appearance: none;
  /* creating new design */
  width: var(--pad-l);
  height: var(--pad-l);
  margin-top: calc(-1 * var(--pad-xs) + 1px * var(--s));
  margin-left: -1px;
  background: var(--blue);
  box-shadow:
    calc(-2px * var(--s)) 0px 0px 0px var(--black),
    calc(2px * var(--s)) 0px 0px 0px var(--black);
  cursor: pointer;
  transition: all var(--transition-time) ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
  background-color: var(--green);
}

input[type="range"]:active::-webkit-slider-thumb {
  background-color: var(--green);
}

@media (pointer: coarse) {
  input[type="range"]::-webkit-slider-thumb {
    width: calc(2 * var(--pad-l));
    height: calc(2 * var(--pad-l));
    margin-top: calc(-1 * var(--pad-l) + 1px * var(--s));
    margin-left: -4px;
  }
}

.tick {
  width: calc(1 / 2 * var(--pad-xs));
  height: calc(2 * var(--pad-l));
  background-color: var(--yellow);
  position: absolute;
  bottom: calc(0.5px * var(--s));
}

#font-default {
  left: calc(var(--N) / 3);
}

#wavelength-default {
  left: calc(var(--N) / 5 - var(--pad-xs));
}

input[type="checkbox"] {
  /* removing default appearance */
  appearance: none;
  /* creating new design */
  position: absolute;
  left: -9999%;
}

input[type="checkbox"] + label,
input[type="button"] {
  appearance: none;
  width: 100%;
  /* width: fit-content; */
  height: fit-content;
  font-family: spaced-times;
  font-size: var(--font-size);
  text-align: center;
  border: none;
  background: var(--blue);
  color: var(--white);
  cursor: pointer;
  padding: var(--pad-s) 0;
  transition: all var(--transition-time) ease;
}

input[type="checkbox"]:hover + label,
input[type="button"]:hover {
  background: var(--green);
}

input[type="checkbox"]:active + label,
input[type="button"]:active {
  background: var(--green);
}

input[type="checkbox"]:checked + label {
  background: var(--green);
}

/* input[type="checkbox"]:checked:hover + label {
  background: var(--blue);
}

input[type="checkbox"]:checked:active + label {
  background: var(--blue);
} */

/* .language {
  width: auto !important;
  padding: var(--pad-s) !important;
} */

.label-line-s {
  font-size: calc(var(--font-size));
  margin: 0;
}
.label-line-l {
  font-size: calc(var(--font-size) * 4);
  line-height: calc(var(--font-size) * 4);
  margin: 0;
  margin-top: calc(-1 * var(--pad-s));
}

.global-button-text {
  height: fit-content;
  width: calc(var(--N) - 2 * var(--pad-s));
  padding-bottom: calc(2 * var(--font-size));
  box-shadow: 0 calc(-1 * var(--pad-l)) var(--black);
  z-index: 10;
}

.sticky {
  position: sticky;
  top: 0;
}

.chapter {
  display: flex;
  flex-direction: row;
  margin: var(--margin) 0 0 0;
}

.chapter .content {
  width: 100%;
}

.sub-chapter {
  display: flex;
  flex-direction: row;
  margin-top: var(--margin);
  justify-content: space-between;
  width: 100%;
}

.content > .sub-chapter {
  margin-top: var(--padding);
}

.content > .sub-chapter ~ .sub-chapter {
  margin-top: var(--margin);
}

.title {
  height: fit-content;
  width: fit-content;
  position: sticky;
  top: 0;
  align-self: start;
  justify-content: center;
}

.content > .title {
  width: 100%;
  z-index: 2;
  background-color: var(--black);
  box-shadow: 0 var(--shadow) var(--shadow) var(--shadow) var(--black);
}

.texts {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  width: 100%;
}

.no-parameters {
  width: calc(100% - var(--N)) !important;
}

.chapter.intro {
  margin-top: 0;
}

.sub-chapter .title {
  width: calc(2 * var(--font-size));
}

.sub-chapter .content {
  display: flex;
  flex-direction: column;
  width: calc(6 * var(--N) + var(--padding));
}

.global {
  position: sticky;
  top: 0;
  z-index: 10;
}

.chapter.global .sub-chapter {
  background: transparent;
  margin: 0;
}

.parameters {
  width: var(--N);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  justify-self: end;
  align-self: start;
  height: fit-content;
  position: sticky;
  top: 0;
  transition: all var(--transition-time) ease;
  gap: var(--paddingHalf);
}

.empty {
  width: 0;
}

#global-parameters {
  margin: 0;
  padding-top: var(--padding);
  background: linear-gradient(0deg, var(--black) 0%, var(--black) 20%);
  box-shadow: 0 0 var(--shadow) var(--shadow) var(--black);
  position: fixed;
  top: 0;
  right: var(--pad-l);
  z-index: 100;
}

#coordinates {
  text-align: center;
}

.sliderAndValue {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: start;
  position: relative;
  width: var(--N);
}

.sliderAndValue:last-child {
  margin-bottom: 0;
}

.canvas {
  /* float: right; */
  display: flex;
  flex-direction: var(--canvas-direction);
  align-items: center;
  justify-content: center;
  gap: var(--canvas-gap);
  scroll-margin-top: var(--N);
  margin: var(--paddingHalf) 0 var(--padding) 0;
  z-index: 0;
}

.canvas:has(> .listened) {
  position: relative;
}

.canvas:has(> .listened)::before {
  content: "🔈";
  padding: 0 var(--pad-xs) var(--pad-xs) var(--pad-s);
  position: absolute;
  top: 2px;
  right: 2px;
  background-color: var(--black);
  font-size: calc(var(--font-size) * 2);
  z-index: 1000;
}

.canvas:first-child {
  margin-top: 0;
}

.canvas:last-child {
  margin-bottom: 0;
}

.canvas.long-plot {
  flex-direction: column-reverse;
  gap: 0;
}

.noScroll > canvas {
  touch-action: none;
}

.sliderAndValue {
  touch-action: none;
}

.parameters,
canvas {
  -webkit-user-select: none; /* Safari */
  -ms-user-select: none; /* IE 10 and IE 11 */
  user-select: none; /* Standard syntax */
}

.caption {
  padding: 0;
  width: calc(var(--s) * var(--N));
}

/* Canvas */
#defaultCanvas0 {
  display: none;
}

/* canvas {
  display: block;
  box-sizing: border-box;
} */

.top {
  width: var(--N);
  position: fixed;
  top: 0;
  right: var(--pad-l);
  display: flex;
  flex-direction: column;
  align-items: end;
  z-index: 1000;
}

#variables-box {
  display: none;
}

#text-parameters {
  background-color: var(--black);
  position: absolute;
  transition: all var(--transition-time) ease;
}

.bottom {
  width: var(--N);
  position: fixed;
  bottom: 0;
  right: var(--pad-l);
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  background-color: var(--black);
  box-shadow: 0 0 var(--shadow) var(--shadow) var(--black);
}

input[type="button"].nav {
  width: calc((var(--N) - var(--pad-l)) / 2);
  font-size: calc(var(--font-size) * 2);
}

.buttons {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  width: calc(var(--N));
  margin: var(--pad-s);
  gap: var(--pad-s);
  flex-wrap: nowrap;
}

.text {
  columns: var(--text-columns);
  column-width: calc(3 * var(--N));
  column-gap: var(--padding);
  column-rule: solid calc(1px * var(--s)) var(--white);
  margin-bottom: var(--padding);
  z-index: 1;
  text-indent: var(--font-size) each-line;
}

/* .text:first-child::first-letter {
  -webkit-initial-letter: 2 1;
  initial-letter: 2 1;
  text-indent: 0;
  margin-right: calc(-1 * var(--font-size));
} */

.text:last-child {
  margin-bottom: 0;
}

img {
  margin-bottom: var(--N);
}

#welcome {
  float: none;
  margin-left: 0;
  margin-bottom: var(--margin);
}

.range-label {
  text-align: center;
  margin: 0;
}

.p5Canvas:not(.plot) {
  border: calc(1px * var(--s)) solid var(--white);
}

/* #caption-figure-14 {
  position: absolute;
  top: 0;
  left: 0;
  margin: 0;
  pointer-events: none;
  background-color: var(--black);
  border-right: calc(1px * var(--s)) solid var(--white);
  border-bottom: calc(1px * var(--s)) solid var(--white);
}
  
#VLTI {
  width: 100%;
  flex-direction: row-reverse;
  align-items: right;
  position: relative;
} */

/* calc(7 * var(--N) + var(--padding) + 2 * var(--font-size) + 2 * var(--pad-l) */

dialog[open] {
  display: flex;
  flex-direction: column;
  justify-content: center;
  font-size: var(--font-size);
  background-color: var(--black);
  color: var(--white);
  border: calc(1px * var(--s)) solid var(--white);
}

dialog::backdrop {
  background: var(--black);
  opacity: 0.5;
}

dialog input {
  align-self: center;
}

dialog input:hover {
  margin: 2px !important;
}

body:has(dialog[open]) {
  overflow: hidden;
}

@media (min-width: 1040px) {
  .long-plot .caption {
    width: calc(2 * var(--N) * var(--s));
  }
}

@media (max-width: 1400px) {
  .text {
    columns: 2;
    column-width: calc(2 * var(--N));
  }

  .sub-chapter .content {
    width: calc(4 * var(--N) + var(--padding));
  }
}

@media (max-width: 1040px) {
  .text {
    columns: 1;
    width: calc(3 * var(--N));
  }

  .sub-chapter .content {
    width: calc(3 * var(--N));
  }

  .canvas {
    flex-direction: column-reverse;
    gap: 0;
  }

  .caption {
    width: calc(3 * var(--N));
  }
}

@media (max-width: 870px) {
  .text {
    width: calc(2 * var(--N));
  }

  .sub-chapter .content {
    width: calc(2 * var(--N));
  }

  .caption {
    width: calc(2 * var(--N));
  }
}

@media (max-width: 680px) {
  h1 {
    font-size: calc(var(--font-size) * 4);
  }

  h2 {
    font-size: calc(var(--font-size) * 3);
  }
  .text {
    width: calc(3 * var(--N));
  }

  .sub-chapter .content {
    width: calc(3 * var(--N));
  }

  .caption {
    width: calc(3 * var(--N));
  }

  .parameters {
    right: calc(-2 * var(--N));
    width: 0;
    opacity: 0;
  }
}

@media (max-width: 630px) {
  .text {
    width: calc(2 * var(--N) + var(--padding));
  }

  .sub-chapter .content {
    width: calc(2 * var(--N) + var(--padding));
  }

  .caption {
    width: calc(2 * var(--N));
  }
}

/* @media all and (orientation: portrait) {
  #variables-box {
    display: flex;
  }

  .top {
    box-shadow: 0 0 var(--shadow) var(--shadow) var(--black);
  }

  .global-button-text {
    width: calc((var(--N) - var(--pad-l)) / 2);
  }

  .bottom {
    width: calc((var(--N) - var(--pad-l)) / 2);
    flex-direction: column;
    gap: var(--pad-l);
  }
  .top {
    top: initial;
    right: initial;
    bottom: 0;
    left: var(--pad-l);
  }
  .bottom {
    flex-direction: column;
    align-items: end;
  }
  .sub-chapter .content {
    width: calc(100vw);
  }
  .parameters {
    position: fixed;
  }
} */