/* initial some arameters */
* {
  font-family: "Acme", cursive, Candara, system-ui, Calibri, Segoe, Segoe UI,
    Optima, Arial, sans-serif;
}

* html,
body,
div,
span,
ul,
li {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}

* html,
body {
  min-height: 100vh;
  width: 100%;
}

* p {
  margin-block-start: 0;
  margin-block-end: 0;
  margin-bottom: 20px;
}

* ul,
h1.greeting {
  width: 100%;
  margin-block-start: 0;
  margin-block-end: 0;
  padding-inline-start: 0;
  list-style: none;
  /*I would like to change the style of bullet*/
}

* ul li {
  margin-bottom: 5px;
  -webkit-flex: 1;
  flex: 1;
}

* ul li::before {
  /*I would like to change the style of bullet*/
  content: "・";
  color: var(--line-gray);
  content: "\2022";
  /* I'm not very sure what is this */
  margin-right: 10px;
}

* h2 {
  margin: 10px 0;
}

* h3 {
  margin-block-start: 0;
  margin-block-end: 0;
}

* button {
  border: 0;
  background-color: none;
}

* a {
  text-decoration: none;
  color: unset;
}

/* set parameters I need */

.margin-border {
  margin: 20px 0;
}

.flexbox {
  display: flex;
}

.fb-row {
  flex-direction: row;
}

.fb-column {
  flex-direction: column;
}

.fb-center {
  align-items: center;
  justify-content: center;
}

.two-sides {
  justify-content: space-between;
  align-items: center;
}

.margin-bottom {
  margin-bottom: 50px;
}

.item-margin {
  margin-bottom: 15px;
}

.fixed {
  position: fixed;
}

.pointer {
  cursor: pointer;
}

.inactive {
  bottom: -400px; /*more than navHeight*/
}

.nactive {
  bottom: 0;
}

/* set parameters by items */

/*** navigation ***/

.banner {
  background-color: white;
  padding: 0;
  width: 100%;
  top: 0;
  border-bottom: 3px dotted var(--line-gray);
  z-index: 999;
}
.banner > div {
  padding: 0 40px;
}

.nav-position {
  bottom: 30px;
  right: 30px;
}

#f-btn {
  height: 50px;
  width: 50px;
  border-radius: 60px;
  z-index: 999;
  visibility: hidden; /*initial state is hidden*/
}

/* @keyframes change-color {
  from {
    background-color: var(--primary);
  }
  to {
    background-color: white;
  }
} */

.f-btn-active {
  background-color: white;
  border: none;
}

.f-btn-inactive {
  background-color: var(--primary);
  border: white solid 3px;
}

#icon-link {
  width: auto;
}

#icon {
  width: 70px;
  color: white;
}

#logo-text {
  color: var(--primary);
  font-size: 22pt;
  margin: 0px 10px;
}

.tab-item {
  display: flex;
  padding: 10px;
  color: var(--primary);
  font-size: 16pt;
}

.tab-item:hover {
  color: var(--primary);
  background-color: var(--secondary);
}

.tab-active {
  color: white;
  background-color: var(--primary);
}

.subnav {
  width: auto;
  height: auto;
}

.subnav-tab {
  display: none;
  position: absolute;
  background-color: var(--bg-gray);
  z-index: 1;
}

.subnav-tab a {
  /* float: left; */
  color: var(--primary);
  text-decoration: none;
  padding: 10px;
  font-size: 14pt;
  transition: color 0.3s;
}
.subnav:hover .tab-item {
  background-color: var(--secondary);
  color: var(--primary);
  transition: color 0.3s;
  transition: background-color 0.3s;
}
.subnav-tab a:hover {
  background-color: var(--secondary-variant);
  color: white;
}

.subnav:hover .subnav-tab {
  display: flex;
}

.subtab-active {
  display: flex;
  /* transition: visible 1s ease-out; */
}

/* @keyframes visible {
  from {
    opacity: 0;
    display: none;
    transform: translate(0, -30px);
  }
  to {
    opacity: 1;
    display: flex;
    transform: translate(0, 0);
  }
} */

.subtab-inactive {
  transition: visible 1s ease-out;
  display: none;
}

#trivia-subtab {
  background-color: white;
  justify-content: end;
  padding: 0 25px;
}

#trivia-subtab a {
  color: var(--primary);
  padding: 10px 15px;
  font-size: 14pt;
}

#trivia-subtab a:hover {
  background-color: var(--secondary);
  color: var(--primary);
}

/*** section 1 ***/

#sloganSction {
  width: 35%;
  margin: 30px;
}

.slogan {
  color: var(--primary);
  font-style: italic;
  font-size: 18pt;
  margin: 15px 0;
  text-align: center;
  line-height: 30pt;
  letter-spacing: 1pt;
}

.rule-img {
  max-width: 500px;
}
.reminder {
  font-size: 12pt;
  color: var(--primary);
  margin: 10px 0;
}

#reminderIco {
  width: 15px;
  margin-left: 10px;
}

.highlight {
  color: var(--primary-variant);
  font-size: 24pt;
}

/*circle animation from week 7 class material*/

.circle {
  width: 330px;
  height: 330px;
  border-radius: 50%;
  padding: 3px;
  position: absolute;
  border: 8px dotted var(--secondary);
  animation: configure-clockwise 15s ease-in-out 0s infinite;
  z-index: -1;
}

@keyframes configure-clockwise {
  0% {
    transform: rotate(0);
  }
  25% {
    transform: rotate(90deg);
  }
  50% {
    transform: rotate(180deg);
  }
  75% {
    transform: rotate(270deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
/*** game ***/
#game {
  width: auto;
  height: 360px;
  text-align: center;
  font-size: 30pt;
  color: var(--primary-variant);
  margin: 30px 0;
}
#showSection {
  height: 100%;
}

#play-show {
  width: 90%;
  height: 70%;
}

#hands {
  width: 500px;
  height: 200px;
}

#com-img,
#player-img {
  width: 150px;
}

#com-img {
  transform: rotate(90deg);
  transform-origin: 50% 100%;
}

.leftHandRotate {
  animation: leftHandRotate 0.5s infinite alternate;
}

.leftHandRotate-active {
  animation: leftHandShoot 0.35s infinite ease-in-out alternate;
}
@keyframes leftHandRotate {
  from {
    transform: rotate(70deg);
  }
  to {
    transform: rotate(110deg);
  }
}
@keyframes leftHandShoot {
  0% {
    transform: rotate(70deg);
  }
  50% {
    transform: rotate(110deg);
  }
  100% {
    transform: rotate(90deg);
  }
}
#player-img {
  transform: rotate(-90deg);
  transform-origin: 50% 100%;
}
.rightHandRotate {
  animation: rightHandRotate 0.5s infinite alternate;
}
.rightHandRotate-active {
  animation: rightHandShoot 0.35s infinite ease-in-out alternate;
}

@keyframes rightHandRotate {
  from {
    transform: rotate(-70deg);
  }
  to {
    transform: rotate(-110deg);
  }
}
@keyframes rightHandShoot {
  0% {
    transform: rotate(-70deg);
  }
  50% {
    transform: rotate(-110deg);
  }
  100% {
    transform: rotate(-90deg);
  }
}
.forReady {
  width: 200px;
}
.forReady::after {
  color: var(--primary-variant);
  /* content: "ready"; */
}

.forReady-active::after {
  animation-name: changeText;
  animation-duration: 3s;
  content: "";
  color: var(--primary-variant);
}

@keyframes changeText {
  20% {
    content: "Rock";
  }
  40% {
    content: "Paper";
  }
  60% {
    content: "Scissores";
  }
  80% {
    content: "SHOOT!";
  }
  100% {
    content: "SHOOT!";
  }
}

/*css change text
> https://stackoverflow.com/questions/42236440/change-text-with-a-css3-animation
> https://www.geeksforgeeks.org/how-to-create-text-changing-animation-effect-using-css/
> https://codepen.io/Rafu/pen/VJYRyY*/

.choiceBtn {
  height: 100px;
  width: 100px;
  border-radius: 15px;
  margin: 10px 50px;
  background-color: var(--highlight);
  color: white;
  font-size: 15pt;
  transform: rotate(-90deg);
}
.lose {
  background-color: var(--primary-variant);
  color: white;
}
.win {
  background-color: var(--secondary);
  color: var(--primary-variant);
}
.draw {
  border: var(--primary) dotted 5px;
  color: var(--primary);
}
/*** -end- game ***/

/* introduction sections */
.international-img {
  /* background-size
  https://developer.mozilla.org/en-US/docs/Web/CSS/background-size*/
  background-size: cover;
  background-position: 50% 65%;
  /* linear-gradient
  https://developer.mozilla.org/en-US/docs/Web/CSS/gradient/linear-gradient*/
  background-image: linear-gradient(
      rgba(255, 255, 255, 0),
      rgba(255, 255, 255, 0.7)
    ),
    url(https://build1snowman.neocities.org/images/international.jpg);
}

.trivia-img {
  background-size: cover;
  background-position: 50% 50%;
  background-image: linear-gradient(
      rgba(255, 255, 255, 0),
      rgba(255, 255, 255, 0.7)
    ),
    url(https://build1snowman.neocities.org/images/trivia.jpg);
}

.tournament-img {
  background-size: cover;
  background-position: 50% 50%;
  background-image: linear-gradient(
      rgba(255, 255, 255, 0),
      rgba(255, 255, 255, 0.7)
    ),
    url(https://build1snowman.neocities.org/images/tournament.jpg);
}

#section2,
#section4 {
  background: linear-gradient(0deg, var(--secondary), transparent);
}

#section3 {
  background: linear-gradient(0deg, var(--secondary-variant), transparent);
  flex-direction: row-reverse;
}

@keyframes changeWidth {
  from {
    width: 60%;
  }
  to {
    width: 70%;
  }
}

.intro-img-l {
  clip-path: polygon(0% 0%, 0% 100%, 75% 100%, 100% 0%);
}

.intro-img-r {
  clip-path: polygon(0% 00%, 25% 100%, 100% 100%, 100% 00%);
}
.intro-img-l,
.intro-img-r {
  height: 300px;
  width: 70%;
  animation: changeWidth 1.5s;
}

.intro-text-r,
.intro-text-l {
  width: 30%;
  color: var(--primary);
}

.intro-text-r {
  justify-content: start;
}

.intro-text-l {
  justify-content: center;
}

.mobile-text-l,
.mobile-text-r {
  display: none;
}

/*international page*/
.listName {
  color: var(--primary);
  margin: 10px 0;
}
#international {
  /* border-top: 2px solid var(--primary); */
  border-collapse: collapse;
  width: 90%;
}

/*footer*/
#footer {
  /* position: absolute; */
  width: 100%;
  height: 100px;
  background-color: var(--bg-gray);
  bottom: 0;
  left: 0;
  transition: height 0.5s ease;
  justify-content: center;
}

#footer h4,
#footer a {
  font-size: 10pt;
  font-family: "Fira Sans", sans-serif;
  color: var(--text-gray);
  margin: 5px 0;
  font-weight: 400;
}

#footer-logo {
  width: 60px;
  margin-right: 20px;
}

#logoSec {
  align-items: flex-start;
  margin: 10px 0;
}

#ig {
  align-items: center;
}

#ico_ig {
  margin-right: 3px;
  width: 20px;
}

#contactSec {
  margin: 10px 0;
}

.contact-item,
.contact-slash {
  margin-right: 10px;
}

.cite {
  font-size: 10pt;
  color: var(--text-gray);
  text-align: end;
}

.block-type {
  max-width: 800px;
}

.article-type {
  max-width: 800px;
}

.table-type {
  max-width: 900px;
}
/* reference website
> W3Schools
> https://www.itread01.com/p/653335.html

> button: https://www.webdesigns.com.tw/css_button.asp

> color custom properties
https://developer.mozilla.org/en-US/docs/Web/CSS/Using_CSS_custom_properties

>background position
https://developer.mozilla.org/en-US/docs/Web/CSS/background-position

>flex-wrap
https://ithelp.ithome.com.tw/articles/10239122
*/