/* Global variables */
:root {
    --doddle-gray: #444444;
    --doddle-font: "Roboto", sans-serif;
    --doddle-orange: #ff6600;
    --doddle-white: #ffffff;
}

* {
    /* box-sizing: border-box; */
}

body {
    color: var(--doddle-gray);
    font-family: var(--doddle-font);
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
}

.main {
    background-color: var(--doddle-gray);
    border-style: none;
    position: relative;
    margin: 0;
    padding: 0 0 20px 0;
    min-height: 100vh;
}

.content {
    position: relative;
    padding: 10px;
}

.interface button i {
    font-size: 2.5rem;
    font-weight: bold;
}

.interface button {
    background-color: var(--doddle-orange);
    border-radius: 10px;
    border-style: none;
    color: var(--doddle-white);
    font-size: 1.5rem;
    font-weight: bold;
    width: 80px;
    height: 50px;
    margin-left: 10px;
    margin-top: 10px;
    transition: 0.1s;
    text-transform: capitalize;
    box-shadow: 3px 3px 3px 3px black;
}

.interface button:hover {
    background-color: var(--doddle-gray);
    cursor: pointer;
    box-shadow: 0px 0px 0px 0px;
    border: 1px solid black;
}

.interface {
    display: flex;
    justify-content: flex-end;
}

.screen {
    background-color: var(--doddle-white);
    border-radius: 10px;
    padding: 50px 50px 25px 50px;
    margin: 5px auto;
}

.help-text {
    background-color: var(--doddle-white);
    color: var(--doddle-orange);
    border-style: solid;
    border-width: 3px;
    border-color: var(--doddle-gray);
    border-radius: 5px;
    bottom: 20vh;
    right: 5vw;
    width: 25rem;
    box-shadow: 5px 5px 5px 5px black;
    font-family: var(--doddle-font);
    font-size: 1.5rem;
}

.help-text p {
    margin: 10px;
}

.startPanel {
    background-color: var(--doddle-white);
    border-radius: 5px;
    border-color: var(--doddle-gray);
    border-width: 3px;
    border-style: solid;
    font-size: 1.5rem;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 100px;
    box-shadow: 10px 10px 10px 0px black;
}

.startPanel p {
    margin: 100px;
}

.intro img {
    width: 600px;
}

.heading {
    color: var(--doddle-gray);
    text-align: center;
    font-size: 2rem;
    text-transform: capitalize;
}

.intro,
.help-text,
.startPanel {
    position: absolute;
}

/* Content_________________________________________________________________ */
.classroom {
    display: flex;
    margin: 50px auto;
    padding: 10px;
    justify-content: space-evenly;
    align-items: center;
    font-size: 14px;
    border: 5px solid navy;
    border-radius: 10px;
}

@media screen and (max-width: 900px) {
    .classroom {
        flex-direction: column;
    }
}

.classroom-content {
    align-self: flex-start;
    display: flex;
    flex-direction: column;
    font-size: 16px;
    justify-content: center;
    width: 100%;
}

.classroom-content h1 {
    font-size: 3em;
    text-align: left;
    margin: 0;
}

.question {
    font-size: 2em;
    font-weight: 500;
    border: 0.05em solid black;
    min-height: 25vh;
    text-align: center;
    color: navy;
}

sup,
sub,
.division {
    vertical-align: super;
}

#showAnswer {
    font-weight: 500;
    padding: 10px 20px;
    font-size: 1.2em;
    font-weight: bold;
    width: 70%;
    margin: auto;
    text-align: center;
    color: var(--doddle-orange);
    outline: none;
    border-color: var(--doddle-gray);
}

#showAnswer:hover {
    outline: none;
    border-color: transparent;
    color: var(--doddle-white);
    background: var(--doddle-orange);
    cursor: pointer;
}

.answer {
    font-size: 2em;
    font-weight: bold;
    border: 0.05em solid black;
    padding: 0.05em;
    min-height: 20vh;
    text-align: center;
    width: 80%;
    margin: 0 auto 0.5em;
    color: navy;
}

.answer p {
    display: none;
}

.color-picker {
    display: flex;
    justify-content: space-evenly;
    width: 60%;
    margin: auto;
}

.color-picker img {
    transform: rotate(90deg);
}

.color-picker img:hover {
    cursor: pointer;
    opacity: 0.6;
}

.honeycomb {
    width: 100%;
    --cell-size: 75px;
    --cell-gap: 3px;
    --cell-outline: 1.5px;
    --long-diagonal: 1.1547;
    display: grid;
    grid-template-columns: repeat(auto-fill, calc(var(--cell-size) / 2));
    gap: var(--cell-gap);
    padding: 20px;
}

.honeycomb-cell {
    height: calc((var(--cell-size) * var(--long-diagonal) * 0.75 + var(--cell-gap)));
    width: var(--cell-size);
    grid-column: span 2;
    filter: drop-shadow(0px 0px 0px rgba(50, 50, 50, 1));
    transition: filter 0.3s, transform 0.3s;
    transform: rotate(0deg);
    transform-origin: calc(var(--cell-size) / 2) calc(var(--cell-size) * var(--long-diagonal) / 2);
}

.honeycomb-cell:hover {
    cursor: pointer;
}

.honeycomb-spacer {
    grid-column: 1;
    grid-row: calc(var(--index) * 2 + 2);
}

.honeycomb-cell::before {
    background-color: black;
    content: "";
    position: absolute;
    height: calc(var(--cell-size) * var(--long-diagonal) + var(--cell-outline) * 2);
    width: calc(var(--cell-size) + var(--cell-outline) * 2);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    top: calc(var(--cell-outline) * -1);
    left: calc(var(--cell-outline) * -1);
}

.honeycomb-cell-content {
    height: calc(var(--cell-size) * var(--long-diagonal));
    width: var(--cell-size);
    background-color: white;
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5em;
    font-weight: bold;
    color: black;
    user-select: none;
}

.honeycomb-cell-content:hover {
    background-color: lightgreen;
}

.honeycomb-cell-content:last-child {
    font-size: 2.5em;
}