#exercise {
    max-width: 1200px;

    text-align: initial !important;
}

#playGround {
    display: flex;
    flex-direction: column;
    align-items: center;
}

#instructions {
    background-color: white;
    border-radius: 6px;
    margin-bottom: 20px;

    line-height: 1.3;
    min-width: 500px;
}

#instructions-content {
    margin: 15px;
}

.mission:not(:last-child) {
    margin-bottom: 6px;
}

#instructions:empty {
    display: none;
}

#workspace {
    display: grid;
    grid-template-columns: auto auto;
    grid-template-areas:
        "plan-header blockly-header"
        "plan-column blockly-column";
    gap: 10px;

    justify-content: center;
}

#blockly-workspace {
    grid-area: blockly-column;
    width: 600px;
    height: 500px;

    z-index: 0;
    position: relative;
}

#plan-column {
    grid-area: plan-column;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#plan {
    line-height: 0;
    padding: 2px;
}

#block-count {
    grid-area: blockly-header;
    text-align: center;
}
#block-count .display {
    font-weight: 500;
}
#block-count.over-limit {
    color: var(--red);
}

#block-count .dropdown img {
    height: 1em;
    opacity: 0.8; /* simulate gray */
}

#plan.correct {
    box-shadow: 0 0 0 3px var(--green);
    animation: var(--animation-blink);
    animation-name: blink;
}

#exercise .exerciseFooter {
    text-align: center;
}

/******************* BACKPACK *******************/
#backpack {
    align-self: flex-start;

    display: flex;
    align-items: center;
    gap: 5px;
}
#backpack-icon {
    height: 30px;
}
#backpack-content {
    max-height: 30px;
    max-width: 50px;
    object-fit: none;
}

/******************* SPEED SLIDER *******************/
.speed-slider {
    position: relative;
    display: block;
    margin-top: 25px;
}
.speed-slider::before,
.speed-slider::after {
    bottom: 100%;
}
#speed-slider {
    appearance: none;
    background-color: transparent;
    cursor: pointer;
    width: 100%;
}
#speed-slider:active {
    cursor: grabbing;
}
#speed-slider::-moz-range-track {
    appearance: none;
    border-radius: 3px;
    height: 10px;
    border: 1px solid var(--gray);
    background-color: white;
}
#speed-slider::-webkit-slider-runnable-track {
    appearance: none;
    border-radius: 3px;
    height: 12px;
    border: 1px solid var(--gray);
    background-color: white;
}
#speed-slider::-webkit-slider-thumb {
    appearance: none;
    border-radius: 3px;
    width: 16px;
    height: 16px;
    border: 1px solid var(--gray);
    background-color: var(--lightGray);

    position: relative;
    top: -3px;
}
#speed-slider::-moz-range-thumb {
    appearance: none;
    border-radius: 3px;
    width: 14px;
    height: 14px;
    border: 1px solid var(--gray);
    background-color: var(--lightGray);
}

/******************* ADMIN CONSOLE *******************/
#admin-console {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

    text-align: center;

    margin: 20px 0;
    gap: 10px;
}

#admin-console .editor-group {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 10px;
}

#admin-console textarea {
    padding: 5px;
    width: auto;
    font-family: monospace;
}

#admin-console h3 {
    margin: 10px 0;
}

#admin-console textarea.valid,
#admin-console input.valid {
    background-color: var(--faintGreen);
}

#admin-console textarea.invalid,
#admin-console input.invalid {
    background-color: var(--faintRed);
}

#plan-editor {
    letter-spacing: 0.3em;
    line-height: 1;
}

/* override form.css */
#admin-console input[type=text] {
    min-width: 0;
    width: auto;
}