/*
  NOTE: In order to avoid a bunch of boilerplate reset code at the top of this file,
  this stylesheet relies on the underlying HTML page importing the `ress` CSS reset
  
  Stylesheet: https://unpkg.com/ress/dist/ress.min.css
  Docs: https://ress.page/docs
*/

:root {
  font-size: 14px;

  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;

  --background: 247, 247, 247;
  --foreground: 23, 23, 23;

  --color-background: #f7f7f7;
  --color-foreground: #232323;
  --color-border: #ccc;

  /* we're going to use this to style some non-link stuff in a link-like way */
  --color-link: #0000ee;

  /* we're going to use this to style some marker-like effects */
  --highlight: 236, 203, 52;
  --cross-out: 22, 22, 52;
}

body {
  min-height: 100%;
  min-width: 100%;

  font-size: 1rem;

  color: var(--color-foreground);
  background-color: var(--color-background);

  /* force a vertical scrollbar to avoid any layout shifts when toggling content */
  overflow-y: scroll;
  /* hide horizontal scrollbar */
  overflow-x: hidden;
}

@media (min-width: 768px) {
  body {
    overflow-x: scroll;
  }
}

/* Anything that has been anchored to should have extra scroll margin */
/* borrowed from: https://piccalil.li/blog/a-more-modern-css-reset/ */
:target {
  scroll-margin-block: 5ex;
}

/* A elements that don't have a class get default styles */
/* borrowed from: https://piccalil.li/blog/a-more-modern-css-reset/ */
a:not([class]) {
  text-decoration-skip-ink: auto;
  color: currentColor;
}

/* fix focus reset from ress */
a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
  outline-width: initial;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 400;
}

strong {
  font-weight: 600;
}

ol {
  list-style-type: decimal;
}

ul {
  list-style-type: disc;
}

ol,
ul {
  padding-left: 1rem;
}

ol:not(.util--bullets),
ul:not(.util--bullets) {
  list-style-type: none;
  padding-left: initial;
}

#recipe-book {
  position: relative;
  min-height: 100%;
  min-width: 100%;
  padding: 1rem;
}

#recipe-book > h1 {
  position: fixed;
  top: 0;
  left: 0;
  padding: 1rem 1rem 0.5rem;
  background-color: var(--color-background);
  width: 100%;
  font-size: 2rem;
  margin-bottom: 1rem;

  z-index: 1;
}

#recipe-book > section {
  margin-top: 4rem;
  margin-bottom: 1rem;
}

#recipes {
  position: relative;
  width: 100%;
  height: 100%;
}

.recipe-list {
  display: flex;
  flex-direction: column;
  gap: 1;
}

.recipe__items_list:only-child {
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .recipe-list {
    flex-direction: row;
    flex: auto;
    scroll-padding: 0;
    scroll-snap-stop: always;
  }

  /*
    HACK: this makes sure that the horizontal scrolling container has equal
    padding at the epnd without this pseudo-element, the container's padding collapses.
  */
  .recipe-list::after {
    content: "";
    display: block;
    padding-right: 0.1rem;
  }
}

.recipe-list__item {
  position: relative;
  display: inline-block;
  width: 100%;
  height: fit-content;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  margin-bottom: 1rem;
  overflow: hidden;

  /* Improve transition for height changes */
  transition: all 0.3s ease;
  /* We need a separate max-height transition with a longer duration for smoother animation */
  transition-property: all, max-height;
  transition-duration: 0.3s, 0.6s;
  transition-timing-function: ease, cubic-bezier(0, 1, 0, 1);
}

@media (min-width: 768px) {
  .recipe-list__item {
    min-width: 50%;
    margin-right: 1rem;
    margin-bottom: 0;
  }
}

@media (min-width: 1024px) {
  .recipe-list__item {
    min-width: 33%;
  }
}

.recipe {
  margin-bottom: 2.25rem;
}

.recipe:only-child {
  margin-bottom: 0;
}

.recipe__header {
  margin-bottom: 1rem;
}

.recipe__header__title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.recipe__header__prep-time,
.recipe__header__serves {
  font-size: 0.875rem;
  margin-bottom: 0.1rem;
}

.recipe__notes {
  font-size: 0.875rem;
  padding: 0.5rem;
  border: 1px solid var(--color-border);
  margin: 0.5rem 0;
}

.recipe__form {
  position: relative;
  margin-bottom: 50px;
}

.recipe-list__item--demo .recipe__form,
.recipe-list__item--demo .recipe__items {
  margin-bottom: 0;
}

.recipe__form__header {
  margin-bottom: 0.25rem;
  font-size: 1.125rem;
}

.recipe__description {
  font-size: 1rem;
  line-height: 1.5;
}

.recipe__description :not(:last-child) {
  margin-bottom: 1rem;
}

.recipe__header ~ .recipe__description {
  margin-bottom: 3rem;
}

.recipe__items {
  margin-bottom: 1rem;
}

.recipe__items-list__item {
  position: relative;
  flex-direction: row;
  align-items: center;
  margin-bottom: 0.5rem;
}

.recipe code {
  /* Add a highlight effect to the important bits of each item that we can designate with `<code>` tags. */
  /* Adapted from: https://stackoverflow.com/a/62484130/14144258 */
  background: linear-gradient(
      104deg,
      rgba(var(--highlight), 0) 0.9%,
      rgba(var(--highlight), 0.7) 2.4%,
      rgba(var(--highlight), 0.5) 5.8%,
      rgba(var(--highlight), 0.1) 93%,
      rgba(var(--highlight), 0.4) 96%,
      rgba(var(--highlight), 0) 98%
    ),
    linear-gradient(
      183deg,
      rgba(var(--highlight), 0) 0%,
      rgba(var(--highlight), 0.3) 7.9%,
      rgba(var(--highlight), 0) 15%
    );
  text-shadow: -7px 0px 9.8px rgba(var(--highlight), 1),
    21px -18.1px 7.3px rgba(var(--background), 1),
    -18.1px -27.3px 30px rgba(var(--background), 1);
  padding: 0.1rem;
  border-radius: 0.5rem;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.recipe__items-list__item:has(input:checked) > label {
  text-decoration: line-through;
  /* Add a marker crossing out effect to checked items from the lists. */
  /* Adapted from: https://stackoverflow.com/a/62484130/14144258 */
  background: linear-gradient(
      104deg,
      rgba(var(--cross-out), 0) 0.9%,
      rgba(var(--cross-out), 0.7) 2.4%,
      rgba(var(--cross-out), 0.5) 5.8%,
      rgba(var(--cross-out), 0.2) 93%,
      rgba(var(--cross-out), 0.3) 96%,
      rgba(var(--cross-out), 0) 98%
    ),
    linear-gradient(
      183deg,
      rgba(var(--cross-out), 0) 0%,
      rgba(var(--cross-out), 0.3) 7.9%,
      rgba(var(--cross-out), 0) 15%
    );
  text-shadow: -7px 0px 9.8px rgba(var(--cross-out), 1),
    21px -18.1px 7.3px rgba(var(--background), 1),
    -18.1px -27.3px 30px rgba(var(--background), 1);
  padding: 0.1rem;
  border-radius: 0.5rem;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.recipe__items-list__item:has(input:checked) > label code {
  mix-blend-mode: multiply;
}

@media (prefers-color-scheme: dark) {
  .recipe__items-list__item:has(input:checked) > label code {
    mix-blend-mode: initial;
  }
}

.recipe__items-list__note__trigger {
  width: 1rem;
  height: 1rem;
  font-size: 0.65rem;
  color: var(--color-link);
  border: 1px solid var(--color-link);
  border-radius: 50%;
  margin-left: 0;
  vertical-align: middle;

  appearance: none;
}

[popover] {
  font-size: 0.875rem;
  padding: 1rem;
  border: 1px solid var(--color-border);

  color: var(--color-foreground);
  background-color: var(--color-background);
  border-color: var(--color-border);

  z-index: 1;
}

/*
  HACK: unfortunately anchor positioning isn't well-supported yet,
  so native popover position isn't great and we have to rely on the
  fixed position of the popover and just center it and then we'll use
  the ::backdrop pseudo-element to make it stand out from the rest of the UI.
*/
:popover-open {
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 90%;
}

[popover]::backdrop {
  background-color: rgba(0, 0, 0, 0.5);
}

@media (min-width: 768px) {
  :popover-open {
    width: 70%;
  }
}

.recipe__footer {
  position: absolute;
  bottom: 0;
  left: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  padding: 0.75rem 1rem 1rem;
  background-color: var(--color-background);
}

.recipe__footer::before {
  content: "";
  position: absolute;
  bottom: 100%;
  left: 0;
  width: 100%;
  height: 1.5rem;
  background: linear-gradient(
    to bottom,
    rgba(247, 247, 247, 0.3) 0%,
    rgba(247, 247, 247, 0.5) 60%,
    rgba(247, 247, 247, 0.65) 85%,
    rgba(247, 247, 247, 1) 100%
  );

  pointer-events: none;
}

.recipe__footer__reset {
  display: none;
  position: absolute;
  top: 50%;
  left: 1rem;
  transform: translateY(-50%);
  font-size: 0.875rem;
  color: var(--color-link);
  text-decoration: underline;
  text-underline-offset: 0.25rem;
  appearance: none;
}

/*
  HACK: This is a hack to show the reset button when any checkbox in the form is checked.

  The Show More/Less button is outside of the form to prevent it from triggering the reset button's visibility.
*/
.recipe__form:has(input[type="checkbox"]:checked)
  ~ .recipe__footer
  .recipe__footer__reset {
  display: initial;
}

.recipe__footer__toggle {
  display: none;
}

.recipe__footer__toggle + label {
  display: block;
}

.recipe__footer__toggle__label__span {
  display: inline-block;
  content: "";
  width: 100%;
  cursor: pointer;
}

.recipe__footer__toggle:not(:checked) + label span::before {
  content: "Show Less";
}

.recipe__footer__toggle:checked + label span::before {
  content: "Show More";
}

.recipe-list__item:has(.recipe__footer__toggle:checked) {
  max-height: 23rem;
  transition-timing-function: ease, ease-out;
}

.recipe-list__item:has(.recipe__footer__toggle:not(:checked)) {
  /* HACK: height large enough to fit any recipe so we can transition */
  max-height: 10000px;
  transition-timing-function: ease, ease-in;
}

/*
  HACK: This is a hack to hide the Show More/Less toggle when the
  parent element doesn't have enough content to overflow and need
  the show/hide functionality.
  
  Blink supports scroll-driven animations that we can use to set the
  `--has-overflow` variable. Webkit and Gecko* don't yet.

  * There is a Firefox experimental flag you can enable to support this.

  Ideally as browser support catches up, the experience will just improve
  slighty for Firefox and Safari users.
*/
@supports (animation-timeline: scroll()) {
  /* Create keyframes for overflow detection */
  @keyframes detect-overflow {
    from,
    to {
      --has-overflow: ;
    }
  }

  .recipe-list__item {
    animation: detect-overflow linear forwards;
    animation-timeline: scroll(self);
  }

  .recipe__footer__toggle__label__span {
    --visibility-if-has-overflow: var(--has-overflow) inline-block;
    --visibility-if-no-overflow: none;
    display: var(
      --visibility-if-has-overflow,
      var(--visibility-if-no-overflow)
    );
  }

  .recipe-list__item:has(.recipe__footer__toggle:not(:checked))
    .recipe__footer__toggle__label__span {
    display: inline-block;
  }

  .recipe-list__item:has(.recipe__items) .recipe__footer__toggle__label__span {
    display: inline-block;
  }
}

/*
  HACK: This is a hack to show the demo recipe at the fixed height of
  10 items that the original challenge asked for.
*/
.recipe-list__item--demo:has(
    .recipe__items_list > li:nth-child(-n + 10):nth-last-child(1)
  ) {
  max-height: 23rem;
}

.recipe-list__item--demo:has(
    .recipe__items_list > li:nth-child(-n + 10):nth-last-child(1)
  )
  .recipe__footer__toggle,
.recipe-list__item--demo:has(
    .recipe__items_list > li:nth-child(-n + 10):nth-last-child(1)
  )
  .recipe__footer__toggle
  + label {
  display: none;
}

.recipe-list__item--demo:has(
    .recipe__items_list > li:nth-child(-n + 10):nth-last-child(1)
  ) {
  height: auto;
}

/* Borrowed from: https://css-tricks.com/nuking-motion-with-prefers-reduced-motion/ */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}