Pendulum/public/styles.css

a:link, a:hover, a:active, a:visited{color: #000;}

html, body{margin: 0; padding: 0; height: 100%; width: 100%;}

canvas{margin: 0; padding: 0; border: none; display: block;}

button:hover{cursor: pointer;}

@font-face{
	font-family: "Tajawal";
	src: url("data/styles/fonts/Tajawal/Tajawal-Regular.ttf");
}
@font-face{
	font-family: "Elronet";
	src: url("data/styles/fonts/Elronet/Elronmonospace.ttf");
}

*{
    font-family: "Tajawal", serif;
	color: #000;
	font-size: 17px;
}

:root{
    --width: 100vw;
    --height: 100vh;
    --opt-width: 400px;
    --opt-padding: 10px;
    --opt-border: 5px;
    --canvas-width: calc(100vw - (var(--opt-width) + var(--opt-padding) * 2 + var(--opt-border)))
}

body {
    overflow: hidden;
}

/**
 * Standard styles
 */

#canvas_holder{
    position: relative;
	width: var(--canvas-width);
    height: var(--height);
    float: left;
}
#canvas_holder canvas{
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
}
#p5_loading{
    display: none;
}


#options {
    float: left;
    width: var(--opt-width);
    height: calc(100vh - var(--opt-padding) * 2);
    padding: var(--opt-padding);
    border-right: var(--opt-border) solid rgb(150, 150, 150);
    background-color: rgb(40, 40, 40);

    display: flex;
    flex-direction: column;
}
#options *:not(input[type=number], input[type=button]){
    color: white;
}

fieldset {
    border-radius: 5px;
    margin: 10px;
    display: flex;
    flex-direction: column;
}

fieldset > * {
    margin: 5px 0;
}

fieldset > legend {
    font-size: 25px;
}

#preparation {
    overflow-y: auto;
}

#segment_view {
    display: grid;
    grid-template-columns: 10% 15% 30% 15% 30%;
}

#segment_header_mass {
    grid-column: 2 / span 2;
}

#segment_header_length {
    grid-column: 4 / span 2;
}

.segment_label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

button {
    width: 100%;
    height: 40px;
    border: 3px solid black;
    border-radius: 5px;
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    flex-shrink: 0;
}
button:hover{
    filter: brightness(80%);
}
button:active {
    filter: brightness(60%);
}

.horizontal_group {
    display: flex;
    justify-content: space-between;
}
.horizontal_group > * {
    width: auto;
    flex: 1;
    margin: 5px;
}
.horizontal_group > *:last-child {
    margin-right: 0;
}
.horizontal_group > *:first-child {
    margin-left: 0;
}

#normalize_btn {
    background-image: url("data/images/compress.svg");
    background-size: 50% 80%;
    background-color: #cbcbcb;
    border-color: #9a9a9a;
}

.reset_btn {
    background-image: url("data/images/refresh.svg");
    background-color: #cbcbcb;
    border-color: #9a9a9a;
}

#add_btn{
    border-color: #007a00;
    background-color: #d3ffd3;
    background-image: url("data/images/add.svg");
}

#delete_btn {
    border-color: #810000;
    background-color: #ffa7a7;
    background-image: url("data/images/delete.svg");
}

#play_btn {
    border-color: #0000c2;
    background-color: #b1b1ff;
}

#play_btn.play {
    background-image: url("data/images/play.svg");
}
#play_btn.pause {
    background-image: url("data/images/pause.svg");
}