:root {
    font-size: 18px;

    --theme-bg: #181818;

    --text-color: white;
    --button-primary: #515151;
    --button-secondary: #f38633;
}

body {
    color: var(--text-color);
    background-color: var(--theme-bg);

    font-family: "IBM Plex", sans-serif;
    font-optical-sizing: auto;
    font-weight: 400;
    font-style: normal;
    user-select: none;
    overflow: hidden;
}

.calculator button {
    font-family: "Montserrat", sans-serif;
    font-optical-sizing: auto;
    font-weight: 500;
    font-style: normal;
    font-variation-settings: "slnt" 0;
}

.history-container::-webkit-scrollbar {
    display: none;
}

.history-container {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    overflow-y: scroll;

    padding: 1rem;
    display: flex;
    flex-direction: column;
    justify-content: end;
    align-items: center;
    gap: 0.75rem;
    text-align: center;

    font-family: "IBM Plex", sans-serif;
    font-optical-sizing: auto;
    font-weight: 400;
    font-style: normal;

    transform: scale(1.2);
    filter: blur(10px);
    opacity: 0;
    pointer-events: none;
    z-index: 200;

    transition: all 0.4s;
}

.history-container span {
    
}

.history-container span strong {
    color: var(--text-color);
}

body.history-open .history-container {
    transform: scale(1);
    filter: blur(0);
    opacity: 1;
    pointer-events: initial;
}

body.history-open .calculator {
    transform: scale(0.8);
    filter: blur(10px);
    opacity: 0.4;
}

.settings-container {
    position: absolute;
    width: 100%;
    height: 80%;
    bottom: -80%;
    left: 0;

    font-family: "IBM Plex", sans-serif;
    font-optical-sizing: auto;
    font-weight: 400;
    font-style: normal;
    padding: 0 1rem;

    z-index: 150;

    transition: all 0.4s;
}

body.settings-open .settings-container {
    bottom: 0;
}

body.settings-open .calculator {
    transform: translateY(-80%);
}

.settings-container span {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

input[type=color] {
    border-radius: 50%;
    height: 1.5rem;
    width: 1.5rem;
    border: solid 1px rgb(128, 128, 128);
    outline: none;
    -webkit-appearance: none;
    cursor: pointer;
}

input[type=color]::-webkit-color-swatch-wrapper {
    padding: 0;
}

input[type=color]::-webkit-color-swatch {
    border: none;
    border-radius: 50%;
}

.settings-container button {
    font-family: "IBM Plex", sans-serif;
    font-optical-sizing: auto;
    font-weight: 400;
    font-style: normal;
    font-size: 0.85rem;

    color: var(--text-color);
    padding: 0.4rem 0.8rem;
    border: none;
    background-color: var(--button-primary);
    /* border: solid 1px rgb(128, 128, 128); */
    border-radius: 10px;

    cursor: pointer;

    transition: background-color 0.3s, transform 0.1s;
}

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

.settings-container button:active {
    transform: scale(0.9);
}

.settings-container .container {
    display: flex;
    justify-content: center;
}