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

* {
    margin: 0;
    padding: 0;
    font: inherit;
}

html {
    color-scheme: dark light;
}

body {
    min-height: 100vh;
}

/* make these elements responsive */
img, picture, svg, video {
    display: block;
    max-width: 100%;
}
/* --- END CSS RESET ---------------------------------------- */

:root {
    --primary-color: #FF0000;
}

/* * {
    border: 2px solid blue;
} */

html {
    font-family:'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    font-size: 16px;
    line-height: 1.4;
    scroll-behavior: smooth;
}

main {
    background-color: #000000;
    color: #ffffff;
    min-height: 100vh;
    overflow: hidden;
    position: relative;
}

.section {
    height: 100vh;
    padding: 0 20px 0 50px;
}

.section-title {
	color: #ffffff;
	font-size: 2rem;
}

.section-text {
    margin-top: 1rem;
}

.line {
    background-color: #ffffff;
    height: 100%;
    width: 3px;
    left: 40px;
    position: absolute;
    z-index: 1;
}

.dot {
    background-color: var(--primary-color);
    height: 20px;
    width: 5px;
    left: 39px;
    top: 0;
    position: absolute;

    animation: dot 3s ease-out infinite;
    z-index: 1;
}

p sup {
    vertical-align: top;
    font-size: 0.7rem;
}

/* --- INTRO ---------------------------------------- */
.intro {
    position: relative;
}

.intro-content h1 {
    font-size: 2.4rem;
}

.intro-content .hr {
    background-color: var(--primary-color);
    margin: 10px 0;
    height: 2px;
    width: 33%;
}

.singularity {
    background-color: var(--primary-color);
    border:1px solid var(--primary-color);
    border-radius: 1008px;
    height: 7px;
    width: 7px;
    top: 50%;
    left: 50%;
    position: absolute;
    transform: translate(-50%, -50%);
}

/* --- PLANCK EPOCH ---------------------------------------- */
.planck {
    overflow: hidden;
    position: relative;
}

.particle-frame {
    height: 400px;
    width: 400px;
    top: 50%;
    left: 50%;
    overflow: hidden;
    position: absolute;
    transform: translate(-50%, -50%);
}

.particle-frame div {
    background-color:var(--primary-color);
    border-radius: 1008px;
    height: 7px;
    width: 7px;
    position: absolute;
    transform: translate(-50%, -50%);
    animation: bigbang 2s ease-out infinite;
}

.particle1 {
    top: 10%;
    left: 50%;
}
.particle2 {
    top: 20%;
    left: 80%;
}
.particle3 {
    top: 50%;
    left: 90%;  
}
.particle4 {
    top: 80%;
    left: 80%;
}
.particle5 {
    top: 90%;
    left: 50%;
}
.particle6 {
    top: 80%;
    left: 20%;
}
.particle7 {
    top: 50%;
    left: 10%;
}
.particle8 {
    top: 20%;
    left: 20%;
}
.particle9 {
    top: 30%;
    left: 41%;
}
.particle10 {
    top: 30%;
    left: 59%;
}
.particle11 {
    top: 42.5%;
    left: 72.5%;
}
.particle12 {
    top: 58.5%;
    left: 72.5%;
}
.particle13 {
    top: 70%;
    left: 59%;
}
.particle14 {
    top: 70%;
    left: 41%;
}
.particle15 {
    top: 58.5%;
    left: 28.5%;
}
.particle16 {
    top: 42.5%;
    left: 28.5%;
}

/* --- GUT EPOCH ---------------------------------------- */
.gut {
    isolation: isolate;
    position: relative;
  
}

.gut-frame {
    height: 200px;
    width: 200px;
    position: absolute;
    top:50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
}


.gravity-blob {
    border: 2px solid var(--primary-color);
    border-radius: 50% 50% 50% 50% / 35% 35% 65% 65%; 
    height: 70px;
    width: 70px;
    display: flex;
    justify-content: center;
    top: 50%;
    left: 50%;
    position: absolute;
    transform: translate(-50%, -50%);

    animation: gravity 2s ease-in infinite;

    
}

.gut-blob {
    background-color: var(--primary-color);
    height: 150px;
    width: 150px;
    border-radius: 38% 62% 49% 51% / 59% 43% 57% 41%; 
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    position: absolute;
    animation: gutblob 4s linear alternate infinite;

    display: flex;
    justify-content: center;
}

.gut-blob p, .gravity-blob p {
    align-content: center;
    align-self: center;
    font-size: 1.6rem;
    font-weight: 700;
}



/* --- ELECTROWEAK EPOCH ---------------------------------------- */
.electroweak {
    isolation: isolate;
    position: relative;

}

.electroweak-frame div {
    background-color: var(--primary-color);
    border-radius: 1008px;
    left:50%;
    top: 50%;
    position: absolute;

    animation: inflation 5s ease-out infinite;
    z-index: -1;
}

.ew-ring1 {
    height: 20px;
    width: 20px;
}

.ew-ring2 {
    height: 40px;
    width: 40px;
    opacity: 0.8;
}

.ew-ring3 {
    height: 60px;
    width: 60px;
    opacity: 0.6;
}

.ew-ring4 {
    height: 80px;
    width: 80px;
    opacity: 0.4;
}

.ew-ring5 {
    height: 100px;
    width: 100px;
    opacity: 0.2;
}



/* --- ANIMATIONS ---------------------------------------- */
@keyframes dot {	
    100% {
		top: 100%;
	}
}


/* BIG BANG */

@keyframes bigbang {
    from {
        top: 50%;
        left: 50%;
        opacity: 1;
    }
    to {
        opacity: 0.2;
    }
}


/* GUT */
@keyframes gutblob {
    10% {
        border-radius: 38% 62% 49% 51% / 45% 55% 45% 55%;
    }
    20% {
        border-radius:53% 47% 65% 35% / 45% 55% 45% 55% ;
    }
    30% {
        border-radius: 53% 47% 65% 35% / 54% 37% 63% 46%;
    }
    40% {
        border-radius: 45% 55% 47% 53% / 54% 37% 63% 46%;
    }
    50% {
        border-radius: 45% 55% 47% 53% / 66% 25% 75% 34%;
    }
    60% {
        border-radius: 35% 65% 59% 41% / 66% 25% 75% 34%;
    }
    70% {
        border-radius: 35% 65% 59% 41% / 53% 39% 61% 47%; 
    }
    80% {
        border-radius: 45% 55% 37% 63% / 53% 39% 61% 47%;
    }
    90% {
        border-radius: 45% 55% 37% 63% / 63% 53% 47% 37% ;
    }
    100% {
        border-radius: 38% 62% 49% 51% / 59% 43% 57% 41% ;
    }
}

@keyframes gravity {
    0% {

    }
    45% {
        top: 150%; 
        border-radius: 50% 50% 50% 50% / 35% 35% 65% 65%; 
    }
    50% {
        border-radius: 50% 50% 50% 50% / 80% 80% 20% 20%;
    }
    100% {
        border-radius: 1008px;
        top: 150%;
    }
}


/* ELECTROWEAK */
@keyframes inflation {
	0% {
		transform: translate(-50%,-50%) scale(0.3) ;
	}

	100% {
        transform: translate(-50%,-50%) scale(4) ;
	}
}