@import url('https://fonts.googleapis.com/css2?family=Patua+One&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Patua+One&family=Raleway:ital,wght@0,100..900;1,100..900&display=swap');

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

body {
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    background-color: #090909;
}

.container {
    width: 100vw;
    height: 100vh;
    position: relative;
}

#left {
    width: 50vw;
    height: 100vh;
    background-color: #2297da;
    position: absolute;
    top: 0;
    left: 0;
}

#right {
    width: 50vw;
    height: 100vh;
    background-color: #2297da;
    position: absolute;
    top: 0;
    right: 0;
}

#left.open,
#right.open {
    animation: screen-open 1s forwards ease-in;
}

@keyframes screen-open {
    0% {
        width: 50vw;
    }

    100% {
        width: 0vw;
    }
}

#startBtn {
    position: absolute;
    top: calc(50vh - 25px);
    left: calc(50vw - 75px);
    z-index: 999;
    width: 150px;
    height: 50px;
    font-size: 26px;
    font-weight: bold;
    font-family: "Raleway", serif;
    cursor: pointer;
    border-radius: 5px;
    outline: none;
    border: 0;
    background-color: #000;
    color: #fff;
}

#year {
    color: #fff;
    font-size: 180px;
    font-weight: bold;
    font-family: "Patua One" serif;
    width: 440px;
    position: absolute;
    top: 200px;
    left: calc(50vw - 220px);
    opacity: 0;

}

#year.color #span1 {
    color: #baff29;
}

#year.color #span2 {
    color: #f85e00;
}

#year.color #span3 {
    color: #4cc9f0;
}

#newSpan.color {
    color: #f72585;
}

#year.show {
    animation: show-year 1s forwards ease-in;
}

@keyframes show-year {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

#year span {
    margin: 5px;
}

#truck {
    position: absolute;
    bottom: 0;
    transform: translateX(-200px);
    will-change: transform;
}

#truck.move {
    animation: move-truck-to-right 4s forwards ease-in;
}

@keyframes move-truck-to-right {
    0% {
        transform: translateX(-200px);
    }

    100% {
        transform: translateX(calc(50vw + 52px));
    }
}

#truck.restart {
    animation: move-truck-to-end 2s forwards ease-in;
}

@keyframes move-truck-to-end {
    0% {
        transform: translateX(calc(50vw + 52px));
    }

    100% {
        transform: translateX(calc(100vw + 200px));
    }
}

.missile-container {
    position: relative;
}

#missile {
    position: absolute;
    left: 58px;
    bottom: 10px;
}

#missile.launch {
    animation: move-missile-to-top 3s forwards ease-in;
}

@keyframes move-missile-to-top {
    0% {
        bottom: 10px;
    }

    100% {
        bottom: 355px;
    }
}

#bomb {
    position: absolute;
    top: 290px;
    left: calc(50vw + 122px);
    width: 0px;
    transform: translate(-50%, -50%) scale(1);
}

#bomb.explode {
    animation: bomb-explod 1s forwards ease-in;
}

@keyframes bomb-explod {
    0% {
        width: 0px;
    }

    50% {
        bottom: 355px;
        width: 350px;
    }

    100% {
        bottom: 355px;
        width: 0px;
    }
}

#flight {
    position: absolute;
    top: 0;
    transform: translateX(200px);
    will-change: transform;
    right: -200px;
}

#flight.move {
    animation: move-flight-to-left 5s forwards ease-in;
}

@keyframes move-flight-to-left {
    0% {
        transform: translateX(200px);
    }

    100% {
        transform: translateX(calc(-100vw - 200px));
    }
}

#newSpan {
    color: #fff;
    font-size: 0px;
    font-weight: bold;
    font-family: "Patua One" serif;
    position: absolute;
    top: 90px;
    right: calc(50vw - 173px);
}

#newSpan.drop {
    animation: drop-span 2s forwards ease-in;
}

@keyframes drop-span {
    0% {
        font-size: 0px;
        top: 90px;
    }

    100% {
        font-size: 180px;
        top: 200px;
    }
}

#message {
    position: absolute;
    top: 500px;
    left: 0;
    width: 100vw;
    font-size: 50px;
    font-weight: bold;
    font-family: "Patua One" serif;
    text-align: center;
    color: #9fffcb;
    opacity: 0;
}

#message.greet {
    opacity: 1;
    animation: greet-message 2s infinite ease-in;
}

@keyframes greet-message {
    0% {
        font-size: 50px;
    }

    50% {
        font-size: 100px;
    }

    100% {
        font-size: 50px;
    }
}

#fireworks {
    display: none;
}

.firework {
    position: absolute;
    top: 100%;
    background: radial-gradient(circle, gold 50px, #0000 0) 80% 90%,
        radial-gradient(circle, gold 50px, #0000 0) 90% 90%,
        radial-gradient(circle, gold 50px, #0000 0) 25% 60%,
        radial-gradient(circle, gold 50px, #0000 0) 30% 20%,
        radial-gradient(circle, gold 50px, #0000 0) 10% 50%,
        radial-gradient(circle, gold 50px, #0000 0) 25% 15%,
        radial-gradient(circle, gold 50px, #0000 0) 95% 85%,
        radial-gradient(circle, gold 50px, #0000 0) 75% 65%,
        radial-gradient(circle, gold 50px, #0000 0) 50% 35%,
        radial-gradient(circle, gold 50px, #0000 0) 40% 60%,
        radial-gradient(circle, gold 50px, #0000 0) 80% 75%,
        radial-gradient(circle, gold 50px, #0000 0) 70% 50%,
        radial-gradient(circle, gold 50px, #0000 0) 10% 30%,
        radial-gradient(circle, gold 50px, #0000 0) 30% 50%,
        radial-gradient(circle, gold 50px, #0000 0) 20% 70%,
        radial-gradient(circle, gold 50px, #0000 0) 45% 96%,
        radial-gradient(circle, gold 50px, #0000 0) 35% 75%,
        radial-gradient(circle, gold 50px, #0000 0) 55% 65%,
        radial-gradient(circle, gold 50px, #0000 0) 95% 75%,
        radial-gradient(circle, gold 50px, #0000 0) 85% 60%,
        radial-gradient(circle, gold 50px, #0000 0) 50% 45%,
        radial-gradient(circle, gold 50px, #0000 0) 45% 20%,
        radial-gradient(circle, gold 50px, #0000 0) 20% 50%,
        radial-gradient(circle, gold 50px, #0000 0) 50% 90%,
        radial-gradient(circle, gold 50px, #0000 0) 64% 34%,
        radial-gradient(circle, gold 50px, #0000 0) 87% 67%,
        radial-gradient(circle, gold 50px, #0000 0) 48% 38%,
        radial-gradient(circle, gold 50px, #0000 0) 30% 54%;
    aspect-ratio: 1;
    background-size: 3px 3px;
    background-repeat: no-repeat;
}

.firework1 {
    left: 50%;
    animation: firework 2s infinite;
    transform: translate(-50%, -900px);
    will-change: transform;
}

.firework2 {
    left: 19%;
    animation: firework 2s infinite;
    transform: translate(-50%, -500px);
    will-change: transform;
}

.firework3 {
    left: 25%;
    animation: firework 2s infinite;
    transform: translate(-50%, -700px);
    will-change: transform;
}


.firework4 {
    left: 80%;
    animation: firework 2s infinite;
    transform: translate(-50%, -650px);
    will-change: transform;
}


.firework5 {
    left: 75%;
    animation: firework 2s infinite;
    transform: translate(-50%, -800px);
    will-change: transform;
}


.firework6 {
    left: 90%;
    animation: firework 2s infinite;
    transform: translate(-50%, -600px);
    will-change: transform;
}
.firework7 {
    left: 38%;
    animation: firework 2s infinite;
    transform: translate(-50%, -600px);
    will-change: transform;
}


@keyframes firework {
    0% {
        transform: translate(-50%, -50%);
        width: 3px;
        opacity: 1;
    }

    50% {
        width: 3px;
        opacity: 1;
    }

    100% {
        width: 300px;
        opacity: 0;
    }
}