@font-face {
  font-family: 'Barlow Semi Condensed';
  src: local('Barlow Semi Condensed'),
    url('./assets/fonts/BarlowSemiCondensed-SemiBold.woff2') format('woff2'),
    url('./assets/fonts/BarlowSemiCondensed-SemiBold.ttf') format('truetype');
  font-style: normal;
  font-display: swap;
  font-weight: 600;
}

@font-face {
  font-family: 'Barlow Semi Condensed';
  src: local('Barlow Semi Condensed'),
    url('./assets/fonts/BarlowSemiCondensed-Bold.woff2') format('woff2'),
    url('./assets/fonts/BarlowSemiCondensed-Bold.ttf') format('truetype');
  font-style: normal;
  font-display: swap;
  font-weight: bold;
}

*, 
*::before, 
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --dark-text-color: hsl(229, 25%, 31%);
  --score-text-color: hsl(229, 64%, 46%);

  --radial-gradient-from: hsl(214, 47%, 23%);
  --radial-gradient-to: hsl(237, 49%, 15%);

  --transition-time: 250ms;

  font-family: 'Barlow Semi Condensed', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  line-height: 1.5;
  font-size: 16px;
  text-size-adjust: none;
  -webkit-text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--radial-gradient-from);
  background-image: -webkit-radial-gradient(var(--radial-gradient-from), var(--radial-gradient-to));
  background-image: -moz-radial-gradient(var(--radial-gradient-from), var(--radial-gradient-to));
  background-image: radial-gradient(var(--radial-gradient-from), var(--radial-gradient-to));
}

body,
html {
  overflow: hidden;
}

body,
main,
.game {
  min-height: 100dvh;
}

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

button {
  appearance: none;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
}

[aria-hidden='true']:not(img) {
  pointer-events: none;
  visibility: hidden;
}

/* prevents clicking on these elements... 
 * this is how avoid verifying targets in the JavaScript code */
.game__option--house,
.game__option--selected,
.rules__button__image,
.game__rules-desktop-overlay,
.game__rules-overlay .game__button,
.game__rules-overlay .game__option,
.game__option,
.game__option__background {
  pointer-events: none;
}

.game__background,
.rules__image {
  user-select: none;
}

.game {
  --background-image-height: 9.75rem;
  --background-image-width: 11.625rem;
  --header-max-height: 6rem;
  --header-margin-top: 1rem;

  --scissors-gradient-from: hsl(40, 84%, 53%);
  --scissors-gradient-to: hsl(39, 89%, 49%);
  --scissors-bg: hsl(39, 89%, 39%);

  --paper-gradient-from: hsl(230, 89%, 65%);
  --paper-gradient-to: hsl(230, 89%, 62%);
  --paper-bg: hsl(230, 89%, 52%);

  --rock-gradient-from: hsl(349, 70%, 56%);
  --rock-gradient-to: hsl(349, 71%, 52%);
  --rock-bg: hsl(349, 71%, 32%);

  --lizard-gradient-from: hsl(261, 72%, 63%);
  --lizard-gradient-to: hsl(261, 73%, 60%);
  --lizard-bg: hsl(261, 73%, 50%);

  --spock-gradient-from: hsl(189, 58%, 57%);
  --spock-gradient-to: hsl(189, 59%, 53%);
  --spock-bg: hsl(189, 59%, 43%);

  display: grid;
  grid-template-areas:
    "score"
    "content";
  grid-template-rows: calc(var(--header-max-height) * 1.2 + var(--header-margin-top)) calc(100dvh - var(--header-max-height) * 1.2 - var(--header-margin-top));
  color: var(--dark-text-color);
}

.game__header {
  --header-outline-color: hsl(217, 16%, 45%);

  --score-width: calc(var(--header-max-height) / 1.3);
  --score-height: calc(var(--header-max-height) / 1.5);
  --fs-score-text: .6rem;
  --fs-score-value: 1.8rem;

  --image-width: calc(var(--header-max-height) / 1.5);

  border: 4px solid var(--header-outline-color);
  border-radius: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  grid-area: score;
  min-width: 90%;
  z-index: 60;
  min-height: clamp(var(--header-max-height), var(--header-max-height) + 2.5vh, var(--header-max-height) * 1.2);
  max-height: calc(var(--header-max-height) * 1.2);
  margin-top: var(--header-margin-top);
  margin-inline: auto;
  padding-inline: .5rem;
}

.game__title {
  display: flex;
  align-items: center;
  padding: 1rem;
  flex-grow: 1;
}

.game__image {
  width: clamp(var(--image-width), var(--image-width) + 2.5vw, var(--image-width) * 1.5);
  opacity: 0;
  transition: opacity var(--transition-time) ease-in;

  &.game__image--loaded {
    opacity: 1;
  }
}

.game__score {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: white;
  border-radius: .5rem;
  line-height: 1;
  width: clamp(var(--score-width), var(--score-width) + 2.5vw, var(--score-width) * 1.2);
  height: clamp(var(--score-height), var(--score-height) + 2.5vw, var(--score-height) * 1.2);
  max-height: calc(var(--score-height) * 2);
  margin-inline: .5rem;
}

.game__score__text {
  font-size: clamp(var(--fs-score-text), var(--fs-score-text) + 1vw, var(--fs-score-text) * 2);
  text-transform: uppercase;
  color: var(--score-text-color);
  letter-spacing: .2rem;
}

.game__score__value {
  font-size: clamp(var(--fs-score-value), var(--fs-score-value) + 1vw, var(--fs-score-value) * 2);
  font-weight: bold;
  margin-top: .3rem;
}

.game__content__container {
  grid-area: content;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.game__content {
  position: relative;
  min-width: 100%;
  min-height: 100%;
  padding: 1.5rem 2rem;
  padding-bottom: 0;
  display: flex;
  flex-direction: column;
}

.game__content--user-select .game__options {
  --option-size-min: 6rem;
}

.game__content>* {
  flex: 1 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.game__options__container {
  flex-grow: 1.5;
}

.game:not(.game__content--user-select) .game__result__container {
  max-height: 0;
}

.game__rules-btn__container {
  flex-grow: 0;
}

.game__options {
  --option-size-min: 6rem;
  --option-size-sum: 6vw;
  --option-multiplier: 2;

  --option-width: clamp(var(--option-size-min), var(--option-size-min) + var(--option-size-sum), calc(var(--option-size-min) * var(--option-multiplier)));
  --option-height: clamp(var(--option-size-min), var(--option-size-min) + var(--option-size-sum), calc(var(--option-size-min) * var(--option-multiplier)));

  --play-again-color: unset;

  --option-opacity-time: 250ms;

  --winner-box-shadow-1: hsla(229, 25%, 31%, .8);
  --winner-box-shadow-2: hsla(229, 25%, 31%, .6);
  --winner-box-shadow-3: hsla(229, 25%, 31%, .4);

  --winner-bs-width-1: calc(var(--option-width) / 6);
  --winner-bs-width-2: calc(var(--option-width) / 3);
  --winner-bs-width-3: calc(var(--option-width) / 2);

  --options-multiplier-w: 2;
  --options-multiplier-h: 1.5;

  --options-width: calc(var(--option-size-min) * var(--options-multiplier-w));
  --options-height: calc(var(--option-size-min) * var(--options-multiplier-h));

  min-width: calc(var(--options-width) + var(--option-size-sum));
  min-height: calc(var(--options-height) + var(--option-size-sum));

  position: relative;
}

.game.options__winner--rock {
  --play-again-color: var(--rock-gradient-from);
}

.game.options__winner--paper {
  --play-again-color: var(--paper-gradient-from);
}

.game.options__winner--scissors {
  --play-again-color: var(--scissors-gradient-from);
}

.game.options__winner--lizard {
  --play-again-color: var(--lizard-gradient-from);
}

.game.options__winner--spock {
  --play-again-color: var(--spock-gradient-from);
}

.game__option__container {
  position: absolute;
  min-width: var(--option-width);
  min-height: var(--option-height);
  left: calc(50% - var(--option-width) / 2);
  top: calc(50% - var(--option-height) / 2);
  border-radius: 50%;
  z-index: 50;
  opacity: 1;

  &.game__option--show.game__option--house {
    transition: scale calc(var(--transition-time) * 2) ease-in,
      opacity calc(var(--option-opacity-time) * 2) ease-in;
  }

  &.game__option--loaded.game__option--show:not(.game__option--hide) {
    box-shadow: 0 0 .5rem var(--option-shadow);
  }

  &.game__option--show .game__option {
    opacity: 1;
    scale: 1;
  }

  &.game__option--start .game__option {
    transition: opacity var(--option-opacity-time) ease-in,
      transform var(--transition-time) ease-in,
      scale var(--transition-time) ease-in;
  }

  &.game__option--hide {
    visibility: hidden;
    pointer-events: none;
    opacity: 0;
  }

  &.game__option--winner::after {
    opacity: 1;
  }

  &:not(.game__option--winner) {
    z-index: 60;
  }
}

.game:not(.game__content--user-select) .game__option__container{
  transition: opacity calc(var(--option-opacity-time) * 2) ease-in,
    scale calc(var(--transition-time) / 1.5) ease-in,
    box-shadow calc(var(--transition-time) / 1.5) ease-in;
}

.game__option__container::after {
  content: '';
  position: absolute;
  min-width: 100%;
  min-height: 100%;
  border-radius: 50%;
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-time) ease-in-out, transform var(--transition-time) ease-in-out;
  box-shadow: 0 0 0 var(--winner-bs-width-1) var(--winner-box-shadow-1),
    0 0 0 var(--winner-bs-width-2) var(--winner-box-shadow-2),
    0 0 0 var(--winner-bs-width-3) var(--winner-box-shadow-3);
}

.game__option {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 100%;
  min-height: 100%;
  overflow: hidden;
  position: absolute;
  border-radius: 50%;
  transition: transform var(--transition-time) ease-in-out;
  opacity: 0;
  scale: 0;

  &::after {
    content: '';
    position: absolute;
    z-index: 60;
    bottom: 5%;
    min-height: 120%;
    min-width: 120%;
    border-radius: 50%;
  }
}

.game__option--house-selecting {
  position: absolute;
  background-color: var(--radial-gradient-to);
  min-width: var(--option-width);
  min-height: var(--option-height);
  border-radius: 50%;
  z-index: -1;
}

.game__option__text {
  --option-text-size: clamp(.6rem, .6rem + 1vw, 1.5rem);

  position: absolute;
  z-index: 50;
  color: white;
  text-transform: uppercase;
  letter-spacing: 0.12rem;
  bottom: -30%;
  text-wrap: nowrap;
  z-index: 50;
  left: 50%;
  transform: translateX(-50%);
  font-size: var(--option-text-size);
}

.game__option--rock {
  --option-shadow: var(--rock-bg);

  & .game__option {
    background-color: var(--rock-bg);
  }
}

.game__option--rock .game__option::after {
  background-image: -moz-linear-gradient(var(--rock-gradient-from), var(--rock-gradient-to));
  background-image: -webkit-linear-gradient(var(--rock-gradient-from), var(--rock-gradient-to));
  background-image: linear-gradient(var(--rock-gradient-from), var(--rock-gradient-to));
}

.game__option--paper {
  --option-shadow: var(--paper-bg);

  & .game__option {
    background-color: var(--paper-bg);
  }
}

.game__option--paper .game__option::after {
  background-image: -moz-linear-gradient(var(--paper-gradient-from), var(--paper-gradient-to));
  background-image: -webkit-linear-gradient(var(--paper-gradient-from), var(--paper-gradient-to));
  background-image: linear-gradient(var(--paper-gradient-from), var(--paper-gradient-to));
}

.game__option--scissors {
  --option-shadow: var(--scissors-bg);

  & .game__option {
    background-color: var(--scissors-bg);
  }
}

.game__option--scissors .game__option::after {
  background-image: -moz-linear-gradient(var(--scissors-gradient-from), var(--scissors-gradient-to));
  background-image: -webkit-linear-gradient(var(--scissors-gradient-from), var(--scissors-gradient-to));
  background-image: linear-gradient(var(--scissors-gradient-from), var(--scissors-gradient-to));
}

.game__option--spock {
  --option-shadow: var(--spock-bg);

  & .game__option {
    background-color: var(--spock-bg);
  }
}

.game__option--spock .game__option::after {
  background-image: -moz-linear-gradient(var(--spock-gradient-from), var(--spock-gradient-to));
  background-image: -webkit-linear-gradient(var(--spock-gradient-from), var(--spock-gradient-to));
  background-image: linear-gradient(var(--spock-gradient-from), var(--spock-gradient-to));
}

.game__option--lizard {
  --option-shadow: var(--lizard-bg);

  & .game__option {
    background-color: var(--lizard-bg);
  }
}

.game__option--lizard .game__option::after {
  background-image: -moz-linear-gradient(var(--lizard-gradient-from), var(--lizard-gradient-to));
  background-image: -webkit-linear-gradient(var(--lizard-gradient-from), var(--lizard-gradient-to));
  background-image: linear-gradient(var(--lizard-gradient-from), var(--lizard-gradient-to));
}

.game {
  & .game__option--paper:not(.game__option--selected, .game__option--house, .game__option--hide) {
    transform: translate(-70%, -70%);
  }

  & .game__option--scissors:not(.game__option--selected, .game__option--house, .game__option--hide) {
    transform: translate(70%, -70%);
  }

  & .game__option--rock:not(.game__option--selected, .game__option--house, .game__option--hide) {
    transform: translateY(50%);
  }
}

.game__content--rpsls {
  &:not(.game__content--user-select) .game__options {
    --option-size-min: 4rem;
    --option-size-sum: 8vw;
    --options-multiplier-w: 3;
    --options-multiplier-h: 2.5;
  }

  & .game__option--scissors:not(.game__option--selected, .game__option--house, .game__option--hide) {
    transform: translate(0%, -90%);
  }

  & .game__option--paper:not(.game__option--selected, .game__option--house, .game__option--hide) {
    transform: translate(100%, -25%);
  }

  & .game__option--rock:not(.game__option--selected, .game__option--house, .game__option--hide) {
    transform: translate(60%, 90%);
  }

  & .game__option--lizard:not(.game__option--selected, .game__option--house, .game__option--hide) {
    transform: translate(-60%, 90%);
  }

  & .game__option--spock:not(.game__option--selected, .game__option--house, .game__option--hide) {
    transform: translate(-100%, -25%);
  }
}

.game__option--selected,
.game__option--house {
  top: unset;
}

.game__option--selected {
  transform: translateX(calc(-60% - 5vw));
}

.game__option--house {
  transform: translateX(calc(60% + 5vw));
}

.game__option__background,
.game__option__background::after {
  background-color: #ccc;
  min-width: calc(var(--option-width) / 1.3);
  min-height: calc(var(--option-height) / 1.3);
  border-radius: 50%;
  z-index: 70;
}

.game__option__background {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;

  &::after {
    content: '';
    position: absolute;
    background-color: #eeeeee;
    top: 6%;
  }
}

.game__option__image {
  transition: opacity var(--transition-time) ease-in,
    width var(--transition-time) ease-in,
    height var(--transition-time) ease-in;
  opacity: 0;
  z-index: 80;
  width: calc(var(--option-width) / 3);
  height: calc(var(--option-height) / 2.5);
  object-fit: contain;
  user-select: none;

  &.image--show {
    opacity: 1;
  }
}

@media (any-hover: hover) {
  .game__option:hover:not(.game__option--start) {
    --transition-time: 150ms;
    cursor: pointer;
  }

  .game:not(.options__winner--rock, .options__winner--paper, .options__winner--scissors,
    .options__winner--lizard, .options__winner--spock) .game__result__button:hover {
    color: white;
    background-color: var(--dark-text-color);
  }

  .game__result__button:hover {
    color: var(--play-again-color, var(--dark-text-color));
    border: 1px solid white;
  }

  .game__rules-btn:hover {
    background-color: white;
    color: var(--dark-text-color)
  }

  .game__option__container.game__option--show:not(.game__option--selected, .game__option--house, .game__option--start):hover {
    scale: 1.05;
    box-shadow: 0 0 1.5rem var(--option-shadow);
  }
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-time: 0.01ms;
  }
}

.game__background {
  position: absolute;
  left: 50%;
  transform: translate(-50%);
  opacity: 0;
  max-height: 100%;
  min-height: 100%;
  min-width: 100%;
  transition: opacity var(--transition-time) ease-in;

  &.game__background--hide {
    visibility: hidden;
  }

  &.game__background--show {
    opacity: 1;
  }
}

.game__result {
  visibility: hidden;
  opacity: 0;
  transition: opacity var(--transition-time) ease-in;
  z-index: 60;
  text-align: center;
  position: absolute;
  display: flex;
  align-items: center;
  flex-direction: column;
  top: 0;

  &[aria-hidden='false'] {
    visibility: visible;
    opacity: 1;
  }
}

.result__buttons {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.game__result__button,
.game__rules-btn {
  text-transform: uppercase;
  transition: color var(--transition-time) ease-in,
    background-color var(--transition-time) ease-in;
  border-radius: .5rem;
  letter-spacing: .1rem;
}

.game__result__text {
  --result-text-fs: 1.8rem;
  font-size: clamp(var(--result-text-fs), var(--result-text-fs) + 1.5vw, var(--result-text-fs) * 1.5);
  color: white;
  text-transform: uppercase;
  line-height: 1;
  margin-bottom: .5rem;
}

.game__result__button {
  --result-button-fs: .9rem;
  color: var(--dark-text-color);
  background-color: white;
  font-size: clamp(var(--result-button-fs), var(--result-button-fs) + 1vw, var(--result-button-fs) * 1.5);
  flex: 1 1 2rem;
  padding-inline: 1rem;
  border: 1px solid transparent;
}

.game__rules-btn {
  --rules-btn-text-size: clamp(1rem, 1rem + .5vw, 1.5rem);

  color: white;
  border: 1px solid white;
  padding: .5rem 2rem;
  font-size: var(--rules-btn-text-size);
  font-weight: 600;
  z-index: 60;
  margin-bottom: 2rem;

  &.game__rules--clicked {
    background-color: white;
    color: var(--dark-text-color)
  }
}

.game__rules-overlay {
  --fs-rules-text: 2rem;

  display: flex;
  align-items: center;
  flex-direction: column;
  background-color: white;
  text-align: center;
  min-height: 100dvh;
  min-width: 100vw;
  position: fixed;
  top: 0;
  left: 0;
  z-index: -1;
  opacity: 0;

  &.game__rules--show {
    opacity: 1;
    z-index: 100;
  }
}

.rules__title {
  font-size: var(--fs-rules-text);
  text-transform: uppercase;
  position: absolute;
  top: 5%;
}

.rules__image {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  min-width: 10rem;
  max-width: 75%;
  opacity: 0;
  visibility: hidden;

  &.rules__image--show{
    opacity: 1;
    visibility: visible;
  }
}

.rules__button {
  position: absolute;
  bottom: 5%;
}

.rules__button__image {
  min-width: 2rem;
}

.game__rules-desktop-overlay {
  margin: 0;
  display: none;
}

@media screen and (max-height: 30rem) {
  .game__content--user-select .game__options{
    --option-size-min: 5rem;
  }

  .game:not(.game__content--user-select) .game__result__container {
    max-height: 0;
  }

  .game__result {
    flex-direction: row;
    gap: .5rem;
  }

  .game__rules-btn{
    margin-bottom: .5rem;
  }

  .game__content {
    padding: 1.5rem;
    padding-bottom: 0;
  }
}

/* change game rules overlay in +640px/+560px screens */

@media screen and (min-height: 35rem) and (min-width: 40rem){
  .game__rules-overlay--show .game__rules-desktop-overlay {
    display: block;
    min-width: 100vw;
    min-height: 100vh;
    position: fixed;
    background-color: black;
    pointer-events: auto;
    margin: 0;
    opacity: .5;
    z-index: 90;
  }

  .game__rules-overlay {
    min-height: 28rem;
    min-width: 25rem;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: .5rem;
  }

  .rules__title {
    left: 2rem;
    top: 5%;
  }

  .rules__button {
    bottom: initial;
    right: 2rem;
    top: 8%;
  }

  .rules__image {
    top: 55%;
  }

  .game__result__button {
    --result-button-fs: 1rem;
    padding: .5rem;
    padding-inline: 1.5rem
  }

  .game__content--user-select .game__options{
    --option-size-min: 8rem;
  }

  .game__result__text{
    --result-text-fs: 2.5rem;
  }
}

@media screen and (min-width: 40rem){
  .game{
     --header-max-height: 8rem; 
  }

  .game__header{
    min-width: calc(100% - 20vw);
  }
}

@media screen and (max-height: 40rem){
  .game__options__container {
    max-height: 25rem; /* 400px */
  }

  .game__result__container{
    max-height: 12.5rem; /* 200px */
  }
}