#excelFunctionBody {
    background: #fafafa;
    color: #1d281f;
}

.excelFunctionMain {
    width: min(1060px, calc(100vw - 40px));
    margin: 0 auto;
    padding: 30px 0 70px;
}

.practiceSection {
    border: solid 1px #d8ded9;
    border-radius: 4px;
    background: white;
    box-shadow: 0 8px 24px rgba(26, 55, 34, 0.08);
}

.functionHero {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(300px, 0.6fr);
    gap: 40px;
    align-items: start;
    padding: 50px;
}

.functionHero h1 {
    margin: 0;
    font-size: 2.5rem;
    font-weight: bold;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.functionHeroCopy > p:last-child {
    margin-bottom: 0;
    color: #4f5c53;
}

.functionLead {
    margin: 18px 0 12px;
    color: #243b2a;
    font-size: 1.2rem;
    line-height: 1.5;
}

.functionWalkthrough {
    padding: 20px;
    border: solid 1px #cfe3d3;
    border-radius: 4px;
    background: #f7fbf8;
}

.functionWalkthroughStep {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 10px;
    align-items: center;
}

.functionWalkthroughStepNumber {
    display: grid;
    width: 34px;
    height: 34px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--principal-green);
    color: white;
    font-weight: bold;
}

.functionWalkthroughStep strong,
.functionWalkthroughStep span:last-child {
    display: block;
}

.functionWalkthroughStep span:last-child {
    color: #617066;
    font-size: 0.9rem;
}

.functionWalkthroughConnector {
    margin: 4px 0 4px 15px;
    color: #8aae92;
    font-size: 1.2rem;
}

.functionSection,
.practiceSection {
    margin-top: 24px;
    padding: 40px;
}

.sectionHeading h2,
.practiceSectionHeading h2 {
    margin: 0;
    font-size: 1.8rem;
    font-weight: bold;
    line-height: 1.2;
}

.sectionHeading > p:last-child,
.practiceSectionHeading > div > p:last-child {
    max-width: 760px;
    margin: 10px 0 0;
    color: #5d685f;
}

.syntaxCard {
    margin-top: 26px;
    padding: 22px 24px;
    overflow-x: auto;
    border: solid 1px #293c2e;
    border-radius: 4px;
    background: #17271c;
    color: white;
}

.syntaxLabel {
    margin: 0 0 12px;
    color: #bcd6c3;
    font-size: 0.8rem;
    font-weight: bold;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.syntaxFormula {
    display: block;
    width: max-content;
    font-family: Consolas, Monaco, monospace;
    font-size: 1.2rem;
    line-height: 1.6;
}

.syntaxFunction {
    color: #ffffff;
    font-weight: bold;
}

.syntaxRequired {
    color: #79e495;
}

.syntaxOptional {
    color: #f4c66d;
}

.syntaxLegend {
    display: flex;
    gap: 18px;
    margin-top: 14px;
    color: #d5dfd7;
    font-size: 0.8rem;
}

.syntaxLegend span {
    display: flex;
    gap: 6px;
    align-items: center;
}

.syntaxLegend i {
    display: inline-block;
    width: 9px;
    height: 9px;
    border-radius: 50%;
}

.requiredLegend {
    background: #79e495;
}

.optionalLegend {
    background: #f4c66d;
}

.argumentList {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
    margin: 16px 0 0;
    padding: 0;
    list-style: none;
}

.argumentList > li {
    display: grid;
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 12px;
    padding: 18px;
    border: solid 1px #dce3de;
    border-radius: 4px;
    background: #fbfcfb;
}

.argumentNumber {
    display: grid;
    width: 32px;
    height: 32px;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    background: #dff5e4;
    color: #086f28;
    font-weight: bold;
}

.optionalArgumentNumber {
    background: #fff0d0;
    color: #885a00;
}

.argumentTitle {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.argumentTitle h3 {
    margin: 0;
    font-family: Consolas, Monaco, monospace;
    font-size: 1rem;
    font-weight: bold;
}

.requiredBadge,
.optionalBadge,
.repeatableBadge {
    padding: 2px 7px;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: bold;
}

.requiredBadge {
    background: #dff5e4;
    color: #086f28;
}

.optionalBadge {
    background: #fff0d0;
    color: #885a00;
}

.repeatableBadge {
    background: #e7edff;
    color: #29407e;
}

.argumentList p {
    margin: 8px 0 0;
    color: #536058;
    font-size: 0.9rem;
}

.argumentOptionList {
    display: grid;
    gap: 6px;
    margin: 6px 0 0;
    padding-left: 20px;
    color: #536058;
    font-size: 0.9rem;
}

.argumentOptionList li {
    padding-left: 2px;
}

.argumentOptionList li::marker {
    color: #885a00;
}

.argumentList code,
.caveatCard code,
.functionNote code {
    padding: 1px 4px;
    border-radius: 2px;
    background: #edf1ee;
    color: #26372b;
    font-family: Consolas, Monaco, monospace;
    font-size: 0.9em;
}

.formulaExample {
    display: grid;
    grid-template-columns: minmax(300px, auto) minmax(0, 1fr);
    gap: 28px;
    align-items: center;
    margin-top: 16px;
    padding: 18px 20px;
    border-left: solid 4px var(--principal-green);
    border-radius: 4px;
    background: #f1f8f3;
}

.formulaExampleLabel {
    margin: 0 0 4px;
    color: #55705c;
    font-size: 0.8rem;
    font-weight: bold;
    text-transform: uppercase;
}

.formulaExample code {
    display: inline-block;
    max-width: 100%;
    padding: 8px 10px;
    overflow-x: auto;
    border: solid 1px #bad8bf;
    border-radius: 4px;
    background: white;
    color: #102516;
    font-family: Consolas, Monaco, monospace;
    font-size: 1rem;
    font-weight: bold;
}

.formulaExample > p {
    margin: 0;
    color: #4e5d52;
}

.caveatGrid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
    margin-top: 24px;
    margin-bottom: 0;
    padding-left: 24px;
}

.caveatCard {
    padding-left: 4px;
}

.caveatCard::marker {
    color: var(--principal-green);
    font-size: 1.2rem;
}

.caveatCard h3 {
    margin: 2px 0 6px;
    font-size: 1rem;
    font-weight: bold;
}

.caveatCard p {
    margin: 0;
    color: #5d625b;
    font-size: 0.9rem;
}

.functionNote {
    margin: 16px 0 0;
    padding: 16px 18px;
    border-radius: 4px;
    background: #eef4ff;
    color: #33445f;
}

.functionNote a,
.caveatCard a {
    color: inherit;
    text-decoration: underline;
}

.introProblemEmbed {
    display: none;
}

.introProblemMobileCard {
    margin-top: 24px;
}

.problemCardGrid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    margin-top: 24px;
    border-top: solid 2px black;
}

.functionProblemCard,
.functionProblemCard:hover,
.functionProblemCard:focus,
.functionProblemCard:active {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: center;
    border-bottom: solid 1px #e1e1e1;
    color: #1d281f;
}

.functionProblemCard:hover,
.functionProblemCard:focus,
.functionProblemCard:active {
    background: #f7f7f7;
}

.functionProblemTitleTags {
    display: grid;
    min-width: 0;
    padding: 15px 20px;
    row-gap: 5px;
}

.functionProblemTitle {
    margin: 0;
    font-size: 1rem;
}

.functionProblemProIcon {
    height: 1rem;
    margin-left: 4px;
    vertical-align: -2px;
}

.functionProblemTags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    line-height: 1;
}

.functionProblemTags span {
    padding: 4px 10px;
    border-radius: 2px;
    background: var(--tag-icon-background);
    color: white;
    font-size: 0.8rem;
    white-space: nowrap;
}

.functionProblemMeta {
    display: grid;
    grid-template-columns: 160px 140px;
    align-items: center;
}

.functionProblemDifficulty,
.functionProblemStatusWrapper {
    width: calc(100% - 40px);
    padding: 15px 20px;
}

.functionProblemDifficulty {
    display: grid;
    grid-template-columns: auto auto;
    justify-content: space-between;
}

.functionProblemDifficultyIntro {
    color: var(--intro-color);
}

.functionProblemDifficultyEasy {
    color: var(--easy-color);
}

.functionProblemDifficultyMedium {
    color: var(--medium-color);
}

.functionProblemDifficultyHard {
    color: var(--hard-color);
}

.functionProblemStatus {
    display: block;
    border: solid 1px currentColor;
    border-radius: 50px;
    text-align: center;
    padding: 2px 0;
    font-size: 0.8rem;
    font-weight: bold;
}

.functionProblemStatus.solved {
    background: var(--solved-background);
    color: var(--solved-color);
}

.functionProblemStatus.pending {
    background: var(--pending-background);
    color: var(--pending-color);
}

.functionProblemStatus.attempted {
    background: var(--attempted-background);
    color: var(--attempted-color);
}

@media screen and (min-width: 1000px) {
    .introProblemEmbed {
        display: grid;
        margin-top: 24px;
        overflow: hidden;
        border: solid 1px #d8ded9;
        border-radius: 4px;
        background: white;
    }

    .introProblemEmbedHeader {
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        gap: 20px;
        align-items: center;
        padding: 16px 18px;
        border-bottom: solid 1px #d8ded9;
        background: #f7f9f7;
    }

    .introProblemEmbedHeader p {
        margin: 0;
        color: #5d685f;
        font-size: 0.9rem;
    }

    .introProblemEmbedHeader a {
        padding: 8px 14px;
        border: solid 1px var(--principal-green);
        border-radius: 4px;
        color: var(--principal-green);
        font-size: 0.9rem;
        font-weight: bold;
        text-align: center;
        white-space: nowrap;
    }

    .introProblemEmbedHeader a:hover,
    .introProblemEmbedHeader a:focus {
        background: var(--principal-green);
        color: white;
    }

    .introProblemEmbed iframe {
        width: 100%;
        height: 780px;
        border: 0;
    }

    .introProblemMobileCard {
        display: none;
    }
}

@media screen and (max-width: 800px) {
    .functionHero {
        grid-template-columns: minmax(0, 1fr);
        padding: 40px;
    }

    .formulaExample {
        grid-template-columns: minmax(0, 1fr);
        gap: 12px;
    }
}

@media screen and (max-width: 560px) {
    .excelFunctionMain {
        width: calc(100% - 24px);
        padding-top: 12px;
    }

    .functionHero,
    .functionSection,
    .practiceSection {
        padding: 24px 20px;
    }

    .functionHero h1 {
        font-size: 2rem;
    }

    .sectionHeading h2,
    .practiceSectionHeading h2 {
        font-size: 1.5rem;
    }

    .syntaxCard {
        margin-right: -20px;
        margin-left: -20px;
        border-right: 0;
        border-left: 0;
        border-radius: 0;
    }

    .syntaxFormula {
        font-size: 1rem;
    }

    .argumentList > li {
        grid-template-columns: 32px minmax(0, 1fr);
        padding: 15px;
    }

    .argumentNumber {
        width: 28px;
        height: 28px;
    }

    .functionProblemCard,
    .functionProblemCard:hover,
    .functionProblemCard:focus,
    .functionProblemCard:active {
        grid-template-columns: minmax(0, 1fr);
    }

    .functionProblemMeta {
        padding-bottom: 15px;
    }

    .functionProblemDifficulty,
    .functionProblemStatusWrapper {
        padding-top: 0;
        padding-bottom: 0;
    }
}