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

/* Custom Properties, update these for your own design */

:root {
    --ff-primary: 'Kalam';
    --ff-secondary: 'Kalam Light';
    
    --fw-reg: 300;
    --fw-bold: 900;
    
    --clr-light: #fff;
    --clr-dark: #303030;
    --clr-accent: #44d2fd;
    
    --fs-h1: 3rem;
    --fs-h2: 2.25rem;
    --fs-h3: 1.25rem;
    --fs-body: 1rem;
    
    --bs: 0.25em 0.25em 0.75em rgba(0,0,0,.25),
          0.125em 0.125em 0.25em rgba(0,0,0,.15);
}

@media (min-width: 800px) {
    :root {
        --fs-h1: 4.5rem;
        --fs-h2: 3.75rem;
        --fs-h3: 1.5rem;
        --fs-body: 1.125rem;
    }
}

/* General styles */

/* endable this to add smooth scrolling */
/* html {
    scroll-behavior: smooth;
} */


body {
    background: var(--clr-light);
    color: var(--clr-dark);
    margin: 0;
    font-family: var(--ff-primary);
    font-size: var(--fs-body);
    line-height: 1.6;
    font-family: 'Kalam';
}

section {
    padding: 5em 5em;
}

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

strong { font-weight: var(--fw-bold); font-size: var(--fs-h2)}

:focus {
    outline: 3px solid var(--clr-accent);
    outline-offset: 3px;
}

/* Buttons */

.btn {
    display: inline-block;
    padding: .5em 2.5em;
    background: var(--clr-accent);
    color: var(--clr-dark);
    text-decoration: none;
    cursor: pointer;
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: var(--fw-bold);
    transition: transform 200ms ease-in-out;
}

.btn:hover {
    transform: scale(1.1);
}

/* Typography */

h1,
h2,
h3 {
    line-height: 1;
    margin: 0;
}

h1 { font-size: var(--fs-h1) }
h2 { font-size: var(--fs-h2) }
h3 { font-size: var(--fs-h3) }


.section__title {
    margin-bottom: .25em;
}

.section__title--intro {
    font-weight: var(--fw-reg);
}

.section__title--intro strong {
    display: block;
}

.section__subtitle {
    margin: 0;
    font-size: var(--fs-h3);
}

.section__subtitle--intro,
.section__subtitle--about {
    background: var(--clr-accent);
    padding: .25em 1em;
    font-family: var(--ff-secondary);
    font-family: 'Kalam';
    margin-bottom: 1em;
}

.section__subtitle--work {
    color: var(--clr-accent);
    font-weight: var(--fw-bold);
    margin-bottom: 2em;
}

/* header */

header {
    display: flex;
    justify-content: space-between;
    padding: 1em;
}

.logo {
    max-width: 100px;
    z-index: 3;  
}

.nav {
    position: fixed;
    background: var(--clr-dark);
    color: var(--clr-light);
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;   
    transform: translateX(100%);
    transition: transform 250ms cubic-bezier(.5, 0, .5, 1);
}

.nav__list {
    list-style: none;
    display: flex;
    height: 100%;
    flex-direction: column;
    justify-content: space-evenly;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav__link {
    color: inherit;
    font-weight: var(--fw-bold);
    font-size: var(--fs-h2);
    text-decoration: none;
}

.nav__link:hover {
    color: var(--clr-accent);
}

.nav-toggle {
    padding: .5em;
    background: transparent;
    border: 0;
    cursor: pointer;
    position: absolute;
    right: 1em;
    top: 1em;
    z-index: 1000;
}

.nav-open .nav {
    transform: translateX(0);
}

.nav-open .nav-toggle {
    position: fixed;
}

.nav-open .hamburger {
    transform: rotate(.625turn);
}

.nav-open .hamburger::before {
    transform: rotate(90deg) translateX(-6px);
}

.nav-open .hamburger::after {
    opacity: 0;
}




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

.hamburger,
.hamburger::before,
.hamburger::after {
    background: var(--clr-accent);
    width: 2em;
    height: 3px;
    border-radius: 1em;
    transition: transform 250ms ease-in-out;
}


.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
}

.hamburger::before { top: 6px; }
.hamburger::after { bottom: 6px; }


/*  Intro section  */

.intro {
    position: relative;
}

.intro__img {
    box-shadow: var(--bs);
}

.intro1__img {
    transform: scale(3);
    padding: 9.5em 4em; 
}
.intro2__img {
    transform: scale(.1);  
      top: -60px;
      left: 220px;
      width: 60%;
      height: 140%;
}

.intro3__img {
    transform: scale(.13);  
    
    top: -324px;
    left: 1135px;
      width: 50%;
      height: 120%;  
}
.intro4__img {
    transform: scale(.11);  position: absolute;
      top: -255px;
      left: -438px;
      width: 50%;
      height: 100%;
}

/* game1 */
.highlight { background-color: #d1b486; }

.ui-menu{
    width: 25em;
  }
  
#cartDiv{
    border-style: solid;
    border-width: 0px;
    transform: scale(.5);
    z-index: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 35px 1px 1px;
  }

b {
    font-weight: bolder;
    font-size: 1.5em;
}

#next {
	position: absolute;
	bottom: -60px;
	right: -200px;
	font-size: 30px;
	padding: 2px;
	border: 2px solid #000;
	border-radius: 15px;
	cursor: pointer;
	display: none;
	color: #000;
	text-decoration: none;
    z-index: 2;
}
.intr_art__img {
    box-shadow: var(--bs);
} 
.section__subtitle--intro {
    display: inline;
}

@media (min-width: 900px) {
    .intro {
        display: grid;
        width: min-content;
        margin: 0 auto;
        grid-column-gap: 1em;
        grid-template-areas: 
            "img title"
            "img subtitle";
        grid-template-columns: min-content max-content;
    }
    
    .intro__img {
        grid-area: img;
        min-width: 650px;
        position: relative;
        z-index: 2;      
    } 
    
    .intr_art__img {
        grid-area: img;
        min-width: 900px;
        position: relative;
        z-index: 2;
            
    }    
    .lightbox-panel{
        grid-area: img;
        min-width: 600px;
        position: relative;
        z-index: 2;
    }
    .intro1__img {
        grid-area: img;
        min-width: 900px;
        position: relative;
        z-index: 2;
    }
    .intro2__img {
        grid-area: img;
        min-width: 450px;
        position: absolute;
        z-index: 2;
    }
    .intro3__img {
        grid-area: img;
        min-width: 450px;
        position: absolute;
        z-index: 2;
    }
    .intro4__img {
        grid-area: img;
        min-width: 450px;
        position: absolute;
        z-index: 2;
    }
    
    .section__subtitle--intro {
        align-self: start;
        grid-column: -1 / 1;
        grid-row: 2;
        text-align: right;
        position: relative;
        left: -1.5em;
        width: calc(100% + 1.5em);
    }
}



/*  My paintings section  */

.my-paintings {
    background-color: var(--clr-dark);
    background-image: url(../img/明仇英01.png);
    background-size: cover;
    /* background-blend-mode: multiply; */
    color: var(--clr-light);
    text-align: center;
}

.section__title--paintings {
    color: var(--clr-accent);
    position: relative;
}

.section__title--paintings::after {
    content: '';
    display: block;
    width: 2em;
    height: 1px;
    margin: 0.5em auto 1em;
    background: var(--clr-light);
    opacity: 0.25;
}

.paintings {
    margin-bottom: 4em;
}

.painting {
    max-width: 500px;
    margin: 0 auto;
}

@media (min-width: 800px) {
    .paintings {
        display: flex;
        max-width: 1000px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .painting + .painting {
        margin-left: 2em;
    }
}


.about-me {
    max-width: 1000px;
    margin: 0 auto;
}

.about-me__img {
    box-shadow: var(--bs);
}

@media (min-width: 600px) {
    .about-me {
        display: grid;
        grid-template-columns: 1fr 200px;
        grid-template-areas: 
            "title img"
            "subtitle img"
            "text img";
        grid-column-gap: 2em;
    }
    
    .section__title--about {
        grid-area: title;
    }
    
    .section__subtitle--about {
        grid-column: 1 / -1;
        grid-row: 2;
        position: relative;
        left: -1em;
        width: calc(100% + 2em);
        padding-left: 1em;
        padding-right: calc(200px + 4em);
    }
    
    .about-me__img {
        grid-area: img;
        position: relative;
        z-index: 2;
    }
}

/* My Work */

.my-work {
    background-color: var(--clr-dark);
    color: var(--clr-light);
    text-align: center;    
}

.portfolio {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(650px, 1fr));
}

.portfolio__item {
    background: var(--clr-accent);
    overflow: hidden;
}

.portfolio__img {
    transition: 
        transform 750ms cubic-bezier(.5, 0, .5, 1),
        opacity 250ms linear;
}

.portfolio__item:focus {
    position: relative;
    z-index: 2;
}

.portfolio__img:hover,
.portfolio__item:focus .portfolio__img {
    transform: scale(1.2);
    opacity: .5;
}


/* footer */

.footer {
    background: #111;
    color: var(--clr-accent);
    text-align: center;
    padding: 2.5em 0;
    font-size: var(--fs-h3);

}

.footer a { 
    color: inherit;
    text-decoration: none;
}

.footer__link {
    font-weight: var(--fw-bold);
}

.footer__link:hover,
.social-list__link:hover {
    opacity: .7;
}

.footer__link:hover {
    text-decoration: underline;
}

.social-list {
    list-style: none;
    display: flex;
    justify-content: center;
    margin: 2em 0 0;
    padding: 0;
}

.social-list__item {
    margin: 0 .5em;
}

.social-list__link {
    padding: .5em;
}


/* Individual portfolio item styles */

.portfolio-item-individual {
    padding: 0 2em 2em;
    max-width: 1000px;
    margin: 0 auto;
}
.portfolio-img{
    box-shadow: var(--bs);
}
.portfolio-item-individual p {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.intro5__img {
    max-width: 400px;
    margin: 0 auto;
   /*border-style: solid;
    border-width: 1px;
    position: relative;*/
}

/* Helicopter */
.my-heli{
    /* put elements into center */
      width: 50%;
      height: 3vh;
      z-index:5;
      display: flex;
      transform: scale(0.7); 
      align-items: center;
      justify-content: center;

  }

  .cockpit {
    position: absolute;
    overflow: hidden;
    z-index: 1;
    width: 195px;
    height: 195px;
    border-radius: 100px 40px 50px 50px;
    background-color: #44d2fd;
}

.cockpit::before {
    content: "";
    position: absolute;
    z-index: 1;
    top: -10px;
    left: -25px;
    width: 170px;
    height: 170px;
    border-radius: 40px;
    background-color: #302e37;
}
.cockpit::after {
    content: "";
    position: absolute;
    z-index: 1;
    top: -60px;
    left: -60px;
    width: 170px;
    height: 170px;
    border-radius: 40px;
    background-color: rgba(255, 255, 255, 0.05);
}

.tail {
    position: absolute;
    top: 50px;
    left: 150px;
    transform-origin: left center;
    border-top: 10px solid transparent;
    border-bottom: 80px solid transparent;
    border-left: 350px solid #63b9d3;
    border-bottom-right-radius: 10px;
    height: 10px;
}

.main {
    position: absolute;
    left: 130px;
    top: -10px;
    width: 40px;
    height: 20px;
    background: #302e37;
}

.rotor {
    width: 700px;
    height: 700px;
    border-radius: 350px;
    position: absolute;
    top: -360px;
    left: -200px;
    z-index: 2;
    overflow: hidden;
    background-color: #a299ab;
    opacity: 0.12;
    transform: scaleY(0.075);
}

.rotator div {
    position: absolute;
    top: 50%;
    left: 50%;
    margin-left: -350px;
    margin-top: -30px;
    width: 700px;
    height: 80px;
    background-color: #fff;
}
.rotator div:nth-child(1){
    transform: rotate(0deg);
}
.rotor div:nth-child(2) {
    transform: rotate(90deg);
}

@keyframes bounce {
    0%,100%{
        transform: translate(0px, -50px) rotate(-15deg);
    }
    50% {
        transform: translate(0px, 50px) rotate(-10deg);
    }
}

@keyframes rotate {
    0% {
        transform: rotate(0deg);
    }
    100%{
        transform: rotate(360deg);
    }
}

.helicopter {
    position: absolute;
    right: 100px;
    animation: bounce 5s infinite; /* adding bounce keyframes with duration 5s and infinite loop */
}

.rotator {
    position: absolute;
    width: 700px;
    height: 700px;
    border-radius: 350px;
    animation: rotate 0.6s linear infinite; /* added rotate @keyframs */
}

/* Rainbow Loader */
.loader {
    
    width: 25%;
    height: 50px;
    display: inline-block;
    transform: scale(1); 
}
.loader:hover {
    transform: scale(1.2);
}

.loader1 {
    
    width: 25%;
    height: 50px;
    display: inline-block;
    transform: scale(1); 
}
.loader1:hover {
    transform: scale(1.2);
}

.loader-inner {
    bottom: 0;
    height: 10px;
    left: 0;
    margin: auto;
    position: absolute;
    right: 0;
    top: 0;
    width: 100px;
}

.loader-line-wrap {
    animation: 
		spin 2000ms cubic-bezier(.175, .885, .32, 1.275) infinite
	;
    box-sizing: border-box;
    height: 50px;
    left: 0;
    overflow: hidden;
    position: absolute;
    top: 0;
    transform-origin: 50% 100%;
    width: 100px;
}
.loader-line {
    border: 4px solid transparent;
    border-radius: 100%;
    box-sizing: border-box;
    height: 100px;
    left: 0;
    margin: 0 auto;
    position: absolute;
    right: 0;
    top: 0;
    width: 100px;
}
.loader-line-wrap:nth-child(1) { animation-delay: -50ms; }
.loader-line-wrap:nth-child(2) { animation-delay: -100ms; }
.loader-line-wrap:nth-child(3) { animation-delay: -150ms; }
.loader-line-wrap:nth-child(4) { animation-delay: -200ms; }
.loader-line-wrap:nth-child(5) { animation-delay: -250ms; }

.loader-line-wrap:nth-child(1) .loader-line {
    border-color: hsl(0, 80%, 60%);
    height: 90px;
    width: 90px;
    top: 7px;
}
.loader-line-wrap:nth-child(2) .loader-line {
    border-color: hsl(60, 80%, 60%);
    height: 76px;
    width: 76px;
    top: 14px;
}
.loader-line-wrap:nth-child(3) .loader-line {
    border-color: hsl(120, 80%, 60%);
    height: 62px;
    width: 62px;
    top: 21px;
}
.loader-line-wrap:nth-child(4) .loader-line {
    border-color: hsl(180, 80%, 60%);
    height: 48px;
    width: 48px;
    top: 28px;
}
.loader-line-wrap:nth-child(5) .loader-line {
    border-color: hsl(240, 80%, 60%);
    height: 34px;
    width: 34px;
    top: 35px;
}

@keyframes spin {
    0%, 15% {
		transform: rotate(0);
	}
	100% {
		transform: rotate(360deg);
	}
}

/* game2 */

#container {
	position: relative;
	margin: 0 auto;
	width: 1920px;
	height: 793px;
	background-color: #000;
}
#inventory {
	position: relative;
	bottom: 0;
	left: 0;
	width: 1000px;
	height: 50px;
	margin: 5px auto 60px;
}
#inventory .items {
	width: 100px;
	height: 100px;
	float: left;
    margin-right: 5px;
	border: 1px solid black;
    display: flex;
    align-items: center;
    justify-content: center;
}
#inventory .items img {
	display: none;
}
.clickable {
	cursor: pointer;
}
#game02_02 {
	position: absolute;
	bottom: 16px;
	left: 650px;
}
#game02_01 {
	position: absolute;
	top: 375px;
	left: 428px;
}
#game02_03 {
	position: absolute;
	bottom: 80px;
	left: 270px;
    
}
#last {
	position: absolute;
	bottom: 20px;
	right: 250px;
	font-size: 30px;
	padding: 2px;
	border: 2px solid #000;
	border-radius: 15px;
	cursor: pointer;
	display: none;
	color: #000;
	text-decoration: none;
  
}
.audio1{
    position: relative;
    display: flex;
    z-index:2;
    transform: scale(.7);
    opacity: .7;
}

#openDialog{
    font-size: 23px;
    top: -90px;
    left: 120px;
    position: relative;
    float: left;
    max-width: 200px;
    z-index:2;
    color: rgb(255, 255, 255);
    padding: 2px;
    border: 2px solid  rgb(255, 255, 255);
    border-radius: 15px;
    text-align: center;
}
#customDialog{
    font-family: "kalam", Times, serif; 
}
#next1 {
	position: absolute;
	bottom: 180px;
	left: 750px;
	font-size: 23px;
	padding: 2px;
	border: 2px solid  rgb(255, 255, 255);
	border-radius: 15px;
	cursor: pointer;
	display: none;
	color: rgb(255, 255, 255);
	text-decoration: none;
    z-index: 2;
}

/* JQuery Slideshow-lightbox */
.open_lightbox {
    box-shadow: var(--bs);
    font-weight: 900;
	position: absolute;
	bottom: 76px;
	left: 356px;
	font-size: 22px;
	padding: 2px;
	border: 4px solid #6e2520;
	border-radius: 15px;
	cursor: pointer;
	display: none;
	color:  #6e2520;
	text-decoration: none;
    z-index: 25;
    transform: scale(1.12);
    align-items: center;
    justify-content: center;
    
}

.lightbox-panel {
    box-shadow: var(--bs);
    display:none;
    position:absolute;
    top: 42%;
    left: 16%;
    width: 600px;
    background: rgba(250, 234, 234, 0.9);
    padding: 2px 2px 50px;
    text-align: center;
    max-height: 500px;
    max-width: 800px;
    overflow: hidden;
    align-items: center;
    justify-content: center;
   }
   
.ntt_close_button {
       display:none;
        position:absolute;
        bottom: 10px;
        right: 15px;
   }
   
.ntt_next_button{
       display:none;
        position:absolute;
        bottom: 10px;
        left: 50px;
   }
   
.ntt_prev_button{
       display:none;
        position:absolute;
        bottom: 10px;
        left: 15px;
   }/*** GENERAL ***/
/*** TITLE ***/
.awesome-header {
    height: 35vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    transform: skewY(-10deg);
  }
  
  .animated-star {
    fill: rgba(0, 0, 0, 0.075);
    height: 35rem;
    width: 35rem;
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    -webkit-animation: scale-up 0.75s cubic-bezier(0.39, 0.575, 0.565, 1) both;
            animation: scale-up 0.75s cubic-bezier(0.39, 0.575, 0.565, 1) both;
  }
  @-webkit-keyframes scale-up {
    0% {
      transform: translate(-50%, -50%) scaleX(0.4);
    }
    100% {
      transform: translate(-50%, -50%) scaleX(1);
    }
  }
  @keyframes scale-up {
    0% {
      transform: translate(-50%, -50%) scaleX(0.4);
    }
    100% {
      transform: translate(-50%, -50%) scaleX(1);
    }
  }
  
  .awesome-title {
    margin: auto;
  }
  .awesome-title__primary, .awesome-title__secondary {
    margin: 0 auto;
    white-space: nowrap;
  }
  .awesome-title__primary {
    font-size: 5rem;
    font-weight: 700;
    text-transform: uppercase;
    text-shadow: 0.03em 0.03em #f4f4f4, 0.05em 0.05em rgba(0, 0, 0, 0.2);
    -webkit-animation: slide-from-left 0.75s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
            animation: slide-from-left 0.75s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
  }
  @-webkit-keyframes slide-from-left {
    0% {
      transform: translateX(-6rem);
    }
    100% {
      transform: translateX(0);
    }
  }
  @keyframes slide-from-left {
    0% {
      transform: translateX(-6rem);
    }
    100% {
      transform: translateX(0);
    }
  }
  .awesome-title__secondary {
    font-size: 1.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
  }
  .awesome-title__secondary:before, .awesome-title__secondary:after {
    content: "";
    display: block;
    height: 0.125em;
    background-color: rgba(0, 0, 0, 0.2);
    -webkit-animation-duration: 0.75s;
            animation-duration: 0.75s;
    -webkit-animation-timing-function: linear;
            animation-timing-function: linear;
  }
  .awesome-title__secondary:before {
    margin-right: 0.5em;
  }
  .awesome-title__secondary:after {
    margin-left: 0.5em;
  }
  .awesome-title__secondary--left {
    justify-content: flex-end;
  }
  .awesome-title__secondary--left:after, .awesome-title__secondary--right:before {
    width: 100%;
    -webkit-animation-name: scale-to-100-percent;
            animation-name: scale-to-100-percent;
  }
  @-webkit-keyframes scale-to-100-percent {
    0% {
      width: 0;
    }
    100% {
      width: 100%;
    }
  }
  @keyframes scale-to-100-percent {
    0% {
      width: 0;
    }
    100% {
      width: 100%;
    }
  }
  .awesome-title__secondary--left:before, .awesome-title__secondary--right:after {
    width: 3em;
    -webkit-animation-name: scale-to-line-min-width;
            animation-name: scale-to-line-min-width;
  }
  @-webkit-keyframes scale-to-line-min-width {
    0% {
      width: 0;
    }
    100% {
      width: 3em;
    }
  }
  @keyframes scale-to-line-min-width {
    0% {
      width: 0;
    }
    100% {
      width: 3em;
    }
  }
  
  @media (max-width: 640px) {
    .animated-star {
      height: 60rem;
      width: 60rem;
    }
  
    .awesome-title__primary {
      font-size: 3.5rem;
    }
    .awesome-title__secondary {
      font-size: 1.25rem;
    }
  }
  @media (max-width: 420px) {
    .animated-star {
      height: 45rem;
      width: 45rem;
    }
  
    .awesome-title__primary {
      font-size: 2.5rem;
    }
    .awesome-title__secondary {
      font-size: 1rem;
    }
  }