HTML {
  --gap: 4rem;
  --radius: 5px;
  --icon-size: 1.5rem;

  scroll-behavior: smooth;
}

BODY {
  margin: 0;
  background: #FFF;
  font-family: Trebuchet MS,Lucida Grande,Lucida Sans Unicode,Lucida Sans,Tahoma,sans-serif;
  font-size: calc(1rem + .15vw);
  line-height: 1.5;
  color: #000;
}

.body--intro {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--gap) / 2) 0;
  box-sizing: border-box;
}

A {
  color: crimson;
  transition: all .15s;
}

A:visited {
  color: orangered;
}

A:hover {
  color: #000;
  text-decoration: none;
}

IMG {
  display: block;
  border-radius: var(--radius);
}

P:first-child {
  margin-top: 0;
}

.body--intro P {
  background: #FFF;
}

.nowrap {
  white-space: nowrap;
}

.title {
  font-family: 'Neucha', cursive;
  font-weight: bold;
  letter-spacing: .05em;
}

.list {
  display: block;
  list-style-type: disc;
  margin: 0 0 1.5rem;
  padding-inline-start: 40px;
}

.list--numeric {
  list-style-type: decimal;
}

.form__list--colors {
  display: flex;
}

.item {
  display: list-item;
}

.item + .item {
  margin-top: 0.5em;
}

.img {
  display: block;
  max-width: 100%;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  border: 0;
  padding: 0;
  -webkit-clip-path: inset(100%);
  clip-path: inset(100%);
  clip: rect(0 0 0 0);
  overflow: hidden;
}

/* Layout
------------------------------ */
.page {
  display: grid;
  gap: var(--gap);
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 calc(2vw * 2 + 1rem);
  box-sizing: border-box;
}

.page-header {
  border-bottom: 1px solid #CCC;
}

.body--intro .page-header {
  border: 0;
}

.page-header__title {
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  margin: 0 -2vw;
  padding-top: 12vw;
  background: crimson url(img/matheus-cenali-wXuzS9xR49M-unsplash.jpg);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: 50% 0%;
  border-radius: 0 0 2vw 2vw;
  text-transform: uppercase;
  font-size: 9vw;
  line-height: .5;
  text-shadow:
    0 0 15px rgba(0,0,0,.5),
    0 0 25px black;
  color: #FFF;
  letter-spacing: 1vw;
}

.body--intro .page-header__title {
  padding-top: 2vw;
  background: transparent;
  text-shadow: none;
  overflow: visible;
  color: #000;
}

.page-footer {
  border-top: 1px solid #CCC;
}

.page-aside__content {
  position: sticky;
  top: 1rem;
}

.inner-nav {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-content {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 4rem;
}

@media (max-width: 960px) {
  .page-content {
    grid-template-columns: 1fr;
  }
}

/* Demo limks
------------------------------ */
.demo-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
  margin-top: var(--gap);
}

@media (max-width: 550px) {
  .demo-links {
    grid-template-columns: 1fr;
    gap: calc(var(--gap) / 2);
  }
}

.demo-links__link {
  padding: 3vw;
  text-align: center;
  font-size: calc(1rem + 1vw);
  border: 2px solid #000;
}

.demo-links__link:hover {
  transform: translateY(-10px);
}

.demo-links__link:link,
.demo-links__link:visited {
  color: #000;
}

.demo-links__link--bad {
  background: #000;
}

.demo-links__link--bad:link,
.demo-links__link--bad:visited {
  color: #FFF;
}

/* Page nav
------------------------------ */
.page-nav {
  padding: 2rem 0;
}

.page-nav__list {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-nav__item {
  margin: 0 .75rem;
}

.page-nav__link:not([href]) {
  font-weight: bold;
  color: inherit;
}

.page-nav__link:not([href]):hover {
  color: inherit;
}

.page-nav__link--has-icon {
  display: block;
  border-radius: 50%;
  text-decoration: none;
}

.page-nav__link--has-icon::before {
  content: '';
  display: block;
  width: var(--icon-size);
  height: var(--icon-size);
  background: currentColor;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center center;
  mask-position: center center;
}

.page-nav__link--top {
  border: 2px solid;
}

.page-nav__link--top::before {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 466.667 466.667'%3E%3Cpath d='M423.57 176.43L256.905 9.764c-13.017-13.018-34.122-13.018-47.14 0L43.098 176.43c-13.018 13.018-13.018 34.123 0 47.14 13.018 13.02 34.123 13.02 47.14 0L200 113.807v319.527c0 18.408 14.926 33.333 33.335 33.333 18.41 0 33.333-14.925 33.333-33.333V113.807L376.43 223.57c6.51 6.51 15.04 9.763 23.57 9.763 8.53 0 17.063-3.254 23.57-9.764 13.018-13.02 13.018-34.124 0-47.14z'%3E%3C/path%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 466.667 466.667'%3E%3Cpath d='M423.57 176.43L256.905 9.764c-13.017-13.018-34.122-13.018-47.14 0L43.098 176.43c-13.018 13.018-13.018 34.123 0 47.14 13.018 13.02 34.123 13.02 47.14 0L200 113.807v319.527c0 18.408 14.926 33.333 33.335 33.333 18.41 0 33.333-14.925 33.333-33.333V113.807L376.43 223.57c6.51 6.51 15.04 9.763 23.57 9.763 8.53 0 17.063-3.254 23.57-9.764 13.018-13.02 13.018-34.124 0-47.14z'%3E%3C/path%3E%3C/svg%3E");
  -webkit-mask-size: 80%;
  mask-size: 80%;
}

.page-nav__link--github::before {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 33 32' xmlns='http://www.w3.org/2000/svg'%3E%3Cg id='codepen' fill='%23000' fill-rule='nonzero'%3E%3Cpath d='M16.288 0C7.294 0 0 7.293 0 16.29c0 7.197 4.667 13.302 11.14 15.456.815.15 1.112-.353 1.112-.785 0-.387-.014-1.411-.022-2.77-4.531.984-5.487-2.184-5.487-2.184-.741-1.882-1.809-2.383-1.809-2.383-1.479-1.01.112-.99.112-.99 1.635.115 2.495 1.679 2.495 1.679 1.453 2.489 3.813 1.77 4.741 1.353.148-1.052.569-1.77 1.034-2.177-3.617-.411-7.42-1.809-7.42-8.051 0-1.778.635-3.233 1.677-4.371-.168-.412-.727-2.069.16-4.311 0 0 1.367-.438 4.479 1.67a15.602 15.602 0 014.078-.549 15.62 15.62 0 014.078.549c3.11-2.108 4.475-1.67 4.475-1.67.889 2.242.33 3.899.163 4.311 1.044 1.138 1.674 2.593 1.674 4.371 0 6.258-3.809 7.635-7.437 8.038.584.503 1.105 1.497 1.105 3.016 0 2.178-.02 3.935-.02 4.469 0 .436.294.943 1.12.784 6.468-2.159 11.131-8.26 11.131-15.455C32.579 7.293 25.285 0 16.288 0'/%3E%3C/g%3E%3C/svg%3E%0A");
  mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 33 32' xmlns='http://www.w3.org/2000/svg'%3E%3Cg id='codepen' fill='%23000' fill-rule='nonzero'%3E%3Cpath d='M16.288 0C7.294 0 0 7.293 0 16.29c0 7.197 4.667 13.302 11.14 15.456.815.15 1.112-.353 1.112-.785 0-.387-.014-1.411-.022-2.77-4.531.984-5.487-2.184-5.487-2.184-.741-1.882-1.809-2.383-1.809-2.383-1.479-1.01.112-.99.112-.99 1.635.115 2.495 1.679 2.495 1.679 1.453 2.489 3.813 1.77 4.741 1.353.148-1.052.569-1.77 1.034-2.177-3.617-.411-7.42-1.809-7.42-8.051 0-1.778.635-3.233 1.677-4.371-.168-.412-.727-2.069.16-4.311 0 0 1.367-.438 4.479 1.67a15.602 15.602 0 014.078-.549 15.62 15.62 0 014.078.549c3.11-2.108 4.475-1.67 4.475-1.67.889 2.242.33 3.899.163 4.311 1.044 1.138 1.674 2.593 1.674 4.371 0 6.258-3.809 7.635-7.437 8.038.584.503 1.105 1.497 1.105 3.016 0 2.178-.02 3.935-.02 4.469 0 .436.294.943 1.12.784 6.468-2.159 11.131-8.26 11.131-15.455C32.579 7.293 25.285 0 16.288 0'/%3E%3C/g%3E%3C/svg%3E%0A");
}

/* Widget
------------------------------ */
.widget + .widget {
  margin-top: calc(var(--gap) * .75);
}

.widget__title {
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: 1.8rem;
}

.widget .list:last-child {
  margin-bottom: 0;
}

/* Section
------------------------------ */
.section {
  margin-top: 4rem;
}

.section__title {
  display: table;
  position: relative;
  z-index: 0;
  margin-bottom: 1.25em;
  padding: .25em .75em;
  font-size: 2rem;
}
.section__title::before,
.section__title::after {
  content: '';
  display: block;
  position: absolute;
  z-index: -1;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  max-width: 280px;
  opacity: .5;
  border-radius: var(--radius);
}

.section__title::before {
  --grad-color: hsla(16, 100%, 50%, .35);
  --bg-size: 1.35rem;

  background-image:
    linear-gradient(var(--grad-color) 50%, transparent 0),
    linear-gradient(90deg, var(--grad-color) 50%, transparent 0);
  background-size: var(--bg-size) var(--bg-size);
  background-repeat: repeat;
  background-position: calc(50% + var(--bg-size) * 0.75) calc(50% + var(--bg-size) * 0.75);
  background-blend-mode: multiply;
  transform: rotate(2.5deg);
  right: -1.5rem;
  left: -.5rem;
}
.section__title::after {
  right: -2rem;
  background: gold;
  transform: rotate(-4deg);
  mix-blend-mode: multiply;
}

/* Examples
------------------------------ */
.examples {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
}

@media (max-width: 650px) {
  .examples {
    grid-template-columns: 1fr;
    gap: calc(var(--gap) / 2);
  }
}

.examples__img-wrapper {
  margin: -1rem 0;
  display: flex;
}

.examples__img {
  margin: -1rem 0;
  object-fit: cover;
}

/* Recipes
------------------------------ */
.recipes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  margin-top: 3rem;
}

@media (max-width: 960px) {
  .recipes {
    grid-template-columns: 1fr;
  }
}

.recipe__title {
  display: table;
  position: relative;
  margin-top: 0;
  margin-bottom: 1.5em;
  padding: .25em .75em;
  font-size: 1.17em;
}

.recipe__title::before,
.recipe__title::after {
  content: '';
  display: block;
  position: absolute;
  z-index: -1;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: .5;
  border-radius: var(--radius);
}

.recipe__title::before {
  --grad-color: hsla(190, 100%, 50%, .6);
  --bg-size: 1.35rem;

  background-image:
    linear-gradient(var(--grad-color) 50%, transparent 0),
    linear-gradient(90deg, var(--grad-color) 50%, transparent 0);
  background-size: var(--bg-size) var(--bg-size);
  background-repeat: repeat;
  background-position: calc(50% + var(--bg-size) * 0.75) calc(50% + var(--bg-size) * 0.75);
  background-blend-mode: multiply;
  transform: rotate(4deg);
  right: -1.5rem;
}

.recipe__title::after {
  right: -2rem;
  background: greenyellow;
  transform: rotate(-6deg);
  mix-blend-mode: multiply;
}

.recipe__list-title {
  --grad-color: hsla(190, 100%, 50%, .4);
  display: table;
  margin-block-start: 2.5em;
  margin-block-end: .75em;
  font-weight: bold;
  background: linear-gradient(to top,
    var(--grad-color) 45%, transparent 0
  );
}

.ingredients {
  max-width: 350px;
  padding-inline-start: 1em;
}

.ingredients .item {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0;
}

.ingredients .item +  .item {
  margin-top: .5em;
}

.ingredients .item::after {
  content: '';
  display: block;
  margin: 0 .5em;
  background: linear-gradient(90deg, currentColor 10%, transparent 0);
  background-size: .5em 1px;
  background-position: 0 1em;
  background-repeat: repeat-x;
  flex-grow: 1;
}

.ingredients__quantity {
  order: 1;
  margin: 0;
}

/* Form
------------------------------ */
.form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

@media (max-width: 680px) {
  .form {
    grid-template-columns: 1fr;
  }
}

.form__group {
  margin: 0;
  padding: 1rem;
  border: 1px solid #CCC;
}

.form__group--wide {
  grid-column: span 2;
}

.form__group:disabled,
.form__group--disabled {
  opacity: .5;
  pointer-events: none;
}

.form__list {
  margin-block-start: 1rem;
  margin-block-end: 1rem;
  padding-inline-start: 1rem;
  list-style-type: none;
}

.form__item + .form__item {
  margin-top: .5em;
}

.form__list--colors .form__item + .form__item {
  margin-top: 0;
  margin-left: .5em;
}


.form__footer {
  grid-column: span 2;
  text-align: center;
}

.form__submit {
  display: inline-block;
  padding: .5em 1em;
  border: 0;
  background: linear-gradient(crimson, orangered);
  font: inherit;
  font-size: 1.5rem;
  border-radius: .5rem;
  line-height: 1;
  cursor: pointer;
  color: #FFF;
}

@media (max-width: 680px) {
  .form__group--wide,
  .form__footer {
    grid-column: span 1;
  }
}

.form__group-title {
  float: left;
  clear: both;
  margin-top: -1.5em;
  margin-left: .5rem;
  padding: 0 .5em;
  line-height: 1em;
  font-weight: bold;
  background: #FFF;
}

.form__label {
  display: block;
  position: relative;
}

.form__label-text {
  position: relative;
  display: flex;
  align-items: flex-start;
}

.form__label--toggler {
  max-width: 50%;
  margin: 1rem 1rem 2.5rem;
}

.form__label-text::before {
  --border-color: #DDD;

  content: '';
  display: block;
  flex-shrink: 0;
  width: 1em;
  height: 1em;
  margin-right: .5em;
  margin-top: .2em;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background-position: center center;
  background-repeat: no-repeat;
}

.form__label-text--radio::before {
  border-radius: 50%;
}

.form__label-text--color {
  display: block;
  width: 2em;
  height: 2em;
  border-radius: var(--radius);
  cursor: pointer;
}

.form__label-text--color::before {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: auto;
  height: auto;
  margin: 0;
  border-color: transparent;
}

.form__label-text--toggler {
  align-items: center;
}

.form__label-text--toggler::before {
  width: 3em;
  height: 1.5em;
  border-radius: .75em;
  background-color: #CCC;
  background-image: radial-gradient(circle, white 70%, transparent 0);
  background-size: 1.25em 1.25em;
  background-position: .1em 50%;
  border-color: transparent;
  transition: background-position .15s;
  cursor: pointer;
}

.form__input:not(.visually-hidden) {
  position: absolute;
  z-index: 2;
  top: .2em;
  left: .25em;
  opacity: 0;
  width: 1em;
  height: 1.5em;
  margin: auto;
}

.form__input--checkbox {
  display: none;
}

.form__input:focus + .form__label-text::before {
  --border-color: currentColor;
  border-color: var(--border-color);
  box-shadow: 0 0 0 2px var(--border-color);
}

.form__input:checked + .form__label-text--checkbox::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 37 32'%3E%3Cpath fill='%23333' d='M31.832 3.098l5.179 4.72-21.582 23.688-14.97-14.381 4.853-5.050 9.78 9.391z'%3E%3C/path%3E%3C/svg%3E");
  background-size: 90% 90%;
}

.form__input:checked + .form__label-text--radio::before {
  background-image: radial-gradient(#333 45%, transparent 0);
}

.form__input:checked + .form__label-text--color::before {
  --border-color: currentColor;
  border-color: var(--border-color);
  box-shadow: 0 0 0 2px var(--border-color);
}

.form__input:checked + .form__label-text--toggler::before {
  background-position: calc(100% - .1em) 50%;
  background-color: yellowgreen;
}

.form__group:disabled .form__label-text--color::before,
.form__group--disabled .form__label-text--color::before {
  box-shadow: none;
  border-color: transparent;
}

.form__textarea {
  display: block;
  width: calc(100% - 2rem);
  min-height: 150px;
  margin: 1rem;
  padding: .5rem;
  border: 1px solid #DDD;
  box-sizing: border-box;
  border-radius: var(--radius);
  font: inherit;
}

.form__textarea:focus {
  border-color: orangered;
  box-shadow: 0 0 0 2px orangered;
  outline: none;
}