.sp-calc-demo {
    --sp-calc-current-bg: color-mix(in srgb, #ffd43b 35%, var(--bg-color));
    --sp-calc-degree-bg: color-mix(in srgb, #4dabf7 30%, var(--bg-color));
    --sp-calc-done-bg: color-mix(in srgb, #40c057 30%, var(--bg-color));
    --sp-calc-repeat-bg: color-mix(in srgb, #fa5252 28%, var(--bg-color));
    --sp-calc-success-color: #2f9e44;
    --sp-calc-error-color: #e03131;
    margin: 1.5rem 0;
}

.sp-calc-demo [hidden] {
    display: none !important;
}

.sp-calc-demo__sheet {
    overflow-x: auto;
    margin-bottom: 0.5rem;
}

.sp-calc-demo table {
    min-width: min(30rem, 100%);
    margin: 0;
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
    background: var(--bg-color);
}

.sp-calc-demo col:first-child {
    width: 2rem;
}

.sp-calc-demo th,
.sp-calc-demo td {
    border: 1px solid var(--text-decoration-color);
    padding: 0.5rem;
    height: 2.6rem;
    text-align: left;
    vertical-align: middle;
    white-space: nowrap;
}

.sp-calc-demo th {
    padding: 0.15rem 0.3rem;
    color: var(--text-pale-color);
    font-weight: 500;
    text-align: center;
    background: var(--primary-decoration-color);
}

.sp-calc-demo thead th {
    height: 1.4rem;
}

.sp-calc-demo .formula {
    color: var(--text-pale-color);
    font-family: "JetBrains Mono", var(--code-font);
    font-size: 0.85em;
}

.sp-calc-demo [data-value],
.sp-calc-demo [data-formula],
.sp-calc-demo [data-changed] {
    display: inline-block;
}

.sp-calc-demo .sp-calc-value-switch {
    position: relative;
    display: inline-block;
    overflow: visible;
    vertical-align: bottom;
    white-space: nowrap;
}

.sp-calc-demo .sp-calc-value-switch__old,
.sp-calc-demo .sp-calc-value-switch__new {
    animation-duration: 0.5s;
    animation-timing-function: ease-out;
    animation-fill-mode: both;
    white-space: nowrap;
    will-change: transform, opacity;
}

.sp-calc-demo .sp-calc-value-switch__old {
    position: absolute;
    left: 0;
    top: 0;
    animation-name: sp-calc-value-switch-out;
}

.sp-calc-demo .sp-calc-value-switch__new {
    display: inline-block;
    animation-name: sp-calc-value-switch-in;
}

@keyframes sp-calc-value-switch-out {
    0% {
        transform: translateY(0);
        opacity: 1;
    }
    75%,
    100% {
        transform: translateY(-0.9em);
        opacity: 0;
    }
}

@keyframes sp-calc-value-switch-in {
    0%,
    45% {
        transform: translateY(0.9em);
        opacity: 0;
    }
    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

.sp-calc-demo td {
    transition: background-color 0.18s ease;
}

.sp-calc-demo td.is-focus {
    box-shadow: inset 0 0 0 2px var(--primary-color);
    animation: sp-calc-focus 0.28s ease-out;
}

@keyframes sp-calc-focus {
    from {
        box-shadow: inset 0 0 0 0 var(--primary-color);
    }
    to {
        box-shadow: inset 0 0 0 2px var(--primary-color);
    }
}

.sp-calc-demo__controls,
.sp-calc-demo__info {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.sp-calc-demo__controls {
    margin-bottom: 0.75rem;
}

.sp-calc-demo__controls label {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border: 1px solid var(--text-decoration-color);
    padding: 0.3rem 0.55rem;
    background: var(--bg-color);
    cursor: pointer;
}

.sp-calc-demo__controls label:has(input:checked) {
    border-color: var(--primary-color);
    background: var(--primary-decoration-color);
    color: var(--primary-color);
}

.sp-calc-demo__controls label:has(input:focus-visible),
.sp-calc-demo__play:focus-visible,
.sp-calc-demo__scrubber button:focus-visible,
.sp-calc-demo__scrubber input:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.sp-calc-demo__controls input {
    appearance: none;
    flex: 0 0 0.85rem;
    width: 0.85rem;
    height: 0.85rem;
    margin: 0;
    border: 1px solid currentColor;
    border-radius: 50%;
}

.sp-calc-demo__controls input:checked {
    background: radial-gradient(
        circle,
        var(--primary-color) 45%,
        transparent 48%
    );
}

.sp-calc-demo__controls input:focus {
    outline: 0;
}

.sp-calc-demo__timeline {
    display: flex;
    align-items: stretch;
    gap: 0.5rem;
    max-width: 100%;
    margin: 0 0 0.75rem;
}

.kahn-demo__timeline {
    width: min(100%, calc(var(--kahn-slider-size, 18rem) + 10rem));
}

.visicalc-demo__timeline {
    width: min(100%, calc(var(--visicalc-slider-size, 18rem) + 10rem));
}

.sp-calc-demo__scrubber {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1 1 auto;
    min-width: 0;
    border: 1px solid var(--text-decoration-color);
    padding: 0.3rem 0.55rem;
    background: var(--bg-color);
}

.sp-calc-demo__scrubber button,
.sp-calc-demo__play {
    color: inherit;
    cursor: pointer;
    font: inherit;
}

.sp-calc-demo__scrubber button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.6em;
    border: 0;
    padding: 0 0.2rem;
    background: transparent;
}

.sp-calc-demo__play {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    min-width: 2.4rem;
    border: 1px solid var(--text-decoration-color);
    padding: 0.3rem 0.55rem;
    background: var(--bg-color);
}

.sp-calc-demo__scrubber button:disabled,
.sp-calc-demo__play:disabled {
    color: var(--text-pale-color);
    cursor: not-allowed;
    opacity: 0.6;
}

.sp-calc-demo__scrubber input {
    accent-color: var(--primary-color);
    flex: 1 1 auto;
    min-width: 5rem;
}

.sp-calc-demo__step {
    color: var(--text-pale-color);
    flex: 0 0 auto;
    font-family: "JetBrains Mono", var(--code-font);
    font-size: 0.85em;
    white-space: nowrap;
}

.sp-calc-demo [data-icon] {
    display: block;
    flex: 0 0 auto;
    width: 1.25em;
    height: 1.25em;
    background: currentColor;
    -webkit-mask-position: center;
    mask-position: center;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-size: contain;
    mask-size: contain;
}

.sp-calc-demo [data-icon="arrow"] {
    -webkit-mask-image: url("/icons/arrow.svg");
    mask-image: url("/icons/arrow.svg");
}

.sp-calc-demo [data-step="-1"] [data-icon="arrow"] {
    transform: rotate(180deg);
}

.sp-calc-demo [data-icon="play"] {
    -webkit-mask-image: url("/icons/play.svg");
    mask-image: url("/icons/play.svg");
}

.sp-calc-demo [data-icon="pause"] {
    -webkit-mask-image: url("/icons/pause.svg");
    mask-image: url("/icons/pause.svg");
}

.sp-calc-demo [data-icon="check"] {
    -webkit-mask-image: url("/icons/check.svg");
    mask-image: url("/icons/check.svg");
}

.sp-calc-demo [data-icon="cross"] {
    -webkit-mask-image: url("/icons/cross.svg");
    mask-image: url("/icons/cross.svg");
}

.sp-calc-demo__panel {
    width: fit-content;
    max-width: 100%;
    min-height: 1.5em;
    border: 1px solid var(--text-decoration-color);
    padding: 0.5rem;
    line-height: 1.2;
    background: var(--bg-color);
}

.sp-calc-demo__panel.is-hidden {
    visibility: hidden;
}

.sp-calc-demo__panel p {
    margin: 0;
}

.visicalc-demo td.is-current,
.kahn-demo td.is-current {
    background: var(--sp-calc-current-bg);
}

.kahn-demo td.is-degree {
    background: var(--sp-calc-degree-bg);
}

.visicalc-demo td.is-done,
.kahn-demo td.is-done {
    background: var(--sp-calc-done-bg);
}

.visicalc-demo__sheet.is-repeat td {
    background: var(--sp-calc-repeat-bg);
}

.visicalc-demo__sheet table,
.kahn-demo__sheet table,
.kahn-demo__graph svg,
.kahn-demo__threads {
    outline: 2px solid transparent;
    outline-offset: -2px;
    transition: outline-color 0.18s ease;
}

.visicalc-demo__sheet.is-complete table,
.kahn-demo__sheet.is-complete table,
.kahn-demo__graph.is-complete svg,
.kahn-demo__threads.is-complete {
    outline-color: var(--sp-calc-success-color);
}

.sp-calc-demo__info {
    align-items: flex-start;
}

.visicalc-demo__bool--true {
    color: var(--sp-calc-success-color);
}

.visicalc-demo__bool--false {
    color: var(--sp-calc-error-color);
}

.kahn-demo td.is-focus-range-start {
    box-shadow:
        inset 2px 0 0 var(--primary-color),
        inset -2px 0 0 var(--primary-color),
        inset 0 2px 0 var(--primary-color);
}

.kahn-demo td.is-focus-range-end {
    box-shadow:
        inset 2px 0 0 var(--primary-color),
        inset -2px 0 0 var(--primary-color),
        inset 0 -2px 0 var(--primary-color);
}

.kahn-demo td.is-focus-range-middle {
    box-shadow:
        inset 2px 0 0 var(--primary-color),
        inset -2px 0 0 var(--primary-color);
}

.sp-calc-demo__graph {
    overflow-x: auto;
    margin-bottom: 0.5rem;
}

.sp-calc-demo__graph svg {
    display: block;
    width: min(24rem, 100%);
    margin: 0 auto;
    border: 1px solid var(--text-decoration-color);
    background: var(--bg-color);
}

.sp-calc-demo__graph-caption {
    margin: 0.4rem 0 0;
    color: var(--text-pale-color);
    font-size: 0.85em;
    text-align: center;
}

.sp-calc-demo__graph-edge path {
    fill: none;
    stroke: var(--text-pale-color);
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    vector-effect: non-scaling-stroke;
}

.sp-calc-demo__graph-node-shape {
    fill: var(--bg-color);
    stroke: var(--text-decoration-color);
    stroke-width: 2;
    vector-effect: non-scaling-stroke;
}

.sp-calc-demo__graph-name {
    fill: var(--primary-color);
    font-family: "JetBrains Mono", var(--code-font);
    font-size: 22px;
    font-weight: 600;
    text-anchor: middle;
}

.sp-calc-demo__graph-label {
    fill: var(--text-pale-color);
    font-size: 15px;
    text-anchor: middle;
}

.sp-calc-demo__graph-node.is-active .sp-calc-demo__graph-node-shape {
    fill: var(--primary-decoration-color);
    stroke: var(--primary-color);
}

.sp-calc-demo__graph-node.is-alert .sp-calc-demo__graph-node-shape {
    fill: color-mix(in srgb, #fa5252 28%, var(--bg-color));
    stroke: #fa5252;
}

.sp-calc-demo__graph-edge.is-active path {
    stroke: var(--primary-color);
}

.kahn-demo .sp-calc-demo__graph svg {
    box-sizing: border-box;
    width: 100%;
    min-width: min(30rem, 100%);
}

.kahn-demo__graph-arrow {
    fill: none;
    stroke: var(--text-pale-color);
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    vector-effect: non-scaling-stroke;
}

.kahn-demo .sp-calc-demo__graph-name {
    font-size: 16px;
}

.kahn-demo__graph-divider {
    fill: var(--text-pale-color);
    font-family: "JetBrains Mono", var(--code-font);
    font-size: 11px;
    text-anchor: middle;
}

.kahn-demo__graph-degree-wrap {
    width: 100%;
    padding-top: 12px;
    overflow: visible;
    color: var(--text-pale-color);
    font-family: "JetBrains Mono", var(--code-font);
    font-size: 13px;
    font-weight: 600;
    line-height: 1.2;
    text-align: center;
}

.kahn-demo__graph-degree {
    display: inline-block;
}

.kahn-demo__graph-node.is-current .sp-calc-demo__graph-node-shape {
    fill: var(--sp-calc-current-bg);
}

.kahn-demo__graph-node.is-degree .sp-calc-demo__graph-node-shape {
    fill: var(--sp-calc-degree-bg);
}

.kahn-demo__graph-node.is-done .sp-calc-demo__graph-node-shape {
    fill: var(--sp-calc-done-bg);
}

.kahn-demo__threads {
    box-sizing: border-box;
    display: grid;
    gap: 0;
    width: 100%;
    min-width: min(30rem, 100%);
    max-width: 100%;
    margin: 0 0 0.5rem;
    border: 1px solid var(--text-decoration-color);
    padding: 0.75rem;
    background: var(--bg-color);
}

.kahn-demo__thread-row {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 0.5rem;
}

.kahn-demo__thread-row + .kahn-demo__thread-row {
    margin-top: 0.6rem;
}

.kahn-demo__thread-label {
    font-family: "JetBrains Mono", var(--code-font);
    font-weight: 600;
    white-space: nowrap;
}

.kahn-demo__thread-track {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.35rem;
    min-height: 1.7rem;
    min-width: 0;
}

.kahn-demo__thread-track:empty::after {
    content: "0 tasks";
    color: var(--text-pale-color);
    font-family: "JetBrains Mono", var(--code-font);
    font-size: 0.85em;
}

.kahn-demo__thread-note {
    margin: 0.2rem 0 0 !important;
    line-height: 1.1;
    text-align: right;
}

.kahn-demo__thread-task {
    border: 2px solid var(--text-decoration-color);
    padding: 0.2rem 0.4rem;
    background: var(--bg-color);
    font-family: "JetBrains Mono", var(--code-font);
    font-size: 0.85em;
    line-height: 1.2;
    white-space: nowrap;
}

.kahn-demo__thread-task.is-current {
    background: var(--sp-calc-current-bg);
}

.kahn-demo__thread-task.is-done {
    background: var(--sp-calc-done-bg);
}

.parallel-kahn-demo .kahn-demo__info {
    min-height: 4.8em;
}

.dependency-quiz-demo {
    --quiz-correct-bg: color-mix(
        in srgb,
        var(--sp-calc-success-color) 18%,
        var(--bg-color)
    );
    --quiz-wrong-bg: color-mix(
        in srgb,
        var(--sp-calc-error-color) 18%,
        var(--bg-color)
    );
}

.dependency-quiz-demo__feedbacks {
    display: grid;
    align-items: start;
    margin: 0;
}

.dependency-quiz-demo__feedback {
    display: flex;
    grid-area: 1 / 1;
    align-items: center;
    gap: 0.45rem;
    width: fit-content;
    max-width: 100%;
    min-height: 1.5em;
    margin: 0;
    border: 1px solid currentColor;
    padding: 0.5rem;
    line-height: 1.2;
    visibility: hidden;
}

.dependency-quiz-demo__feedback--correct {
    color: var(--sp-calc-success-color);
    background: var(--quiz-correct-bg);
}

.dependency-quiz-demo__feedback--wrong {
    color: var(--sp-calc-error-color);
    background: var(--quiz-wrong-bg);
}

.dependency-quiz-demo:has(input[value="a1"]:checked)
    .dependency-quiz-demo__feedback--wrong,
.dependency-quiz-demo:has(input[value="b1"]:checked)
    .dependency-quiz-demo__feedback--correct {
    visibility: visible;
}

.dependency-quiz-demo__feedback p {
    margin: 0;
}

@media (prefers-reduced-motion: reduce) {
    .sp-calc-demo .sp-calc-value-switch__old,
    .sp-calc-demo .sp-calc-value-switch__new,
    .sp-calc-demo td.is-focus {
        animation-duration: 0.01ms;
    }
}

@media (max-width: 32rem) {
    .sp-calc-demo table {
        min-width: 0;
    }

    .sp-calc-demo col:first-child {
        width: 1.6rem;
    }

    .sp-calc-demo th,
    .sp-calc-demo td {
        padding: 0.35rem;
        height: 2.3rem;
        white-space: normal;
        overflow-wrap: anywhere;
    }

    .sp-calc-demo .formula {
        display: block;
        font-size: 0.75em;
    }

    .sp-calc-demo .formula.sp-calc-value-switch {
        display: block;
    }

    .sp-calc-demo__timeline {
        gap: 0.35rem;
        width: 100%;
    }

    .sp-calc-demo__scrubber {
        gap: 0.35rem;
        padding: 0.25rem 0.4rem;
    }

    .sp-calc-demo__scrubber input {
        min-width: 4rem;
    }

    .sp-calc-demo__step {
        font-size: 0.75em;
    }

    .sp-calc-demo__play {
        min-width: 2rem;
        padding: 0.25rem 0.4rem;
    }

    .kahn-demo .sp-calc-demo__graph svg {
        height: 15rem;
    }

    .kahn-demo__graph-node {
        transform: scale(1.32);
        transform-box: fill-box;
        transform-origin: center;
    }

    .kahn-demo__thread-row {
        grid-template-columns: 1fr;
        gap: 0.2rem;
    }

    .kahn-demo__thread-track {
        min-width: 0;
    }
}