:root {
    --main-bg-color: #ffffff;
    --main-font-color: #292b2c;
    --secondary-color: maroon;
    --button-bg-color: #eee;
    --button-border-color: #555;
    --button-hover-color: #ddd;
    --whitebox-bg-color: #ffffff40;
}

body {
    background-color: var(--main-bg-color);
    font-family: 'Roboto', sans-serif;
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--main-font-color);
}

#content, #content > * {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 30px;
}

.intro {
    font-size: 18px;
    font-weight: 400;
    margin-bottom: 30px;
}

.button {
    display: inline-block;
    font-size: 16px;
    padding: 10px 20px;
    background-color: var(--button-bg-color);
    border: 1px solid var(--button-border-color);
    border-radius: 10px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.button:hover {
    background-color: var(--button-hover-color);
}

.button:active {
    transform: translateY(2px);
}

#particle-tools > p {
    margin:0.1rem;
}

#temp-tool {
    font-family: monospace;
    color: var(--secondary-color);
    font-size: large;
}

#bias-tool svg > * {
    stroke: var(--secondary-color);
}

#bias-tool svg > circle {
    fill: transparent;
    stroke-width: 0.5px;
}

#bias-tool svg defs  {
    fill: var(--secondary-color);
}

div #content, #particles {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
}

.whitebox {
    background-color: var(--whitebox-bg-color);
    border-radius: 10px;
    padding: 20px;
}