code/frontend/src/tailwind.css
/*! tailwindcss v4.1.14 | MIT License | https://tailwindcss.com */
@layer theme {

    :root,
    :host {
        --font-sans: ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
        --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
        --default-font-family: var(--font-sans);
        --default-mono-font-family: var(--font-mono)
    }
}

@layer base {

    *,
    :after,
    :before,
    ::backdrop {
        box-sizing: border-box;
        border: 0 solid;
        margin: 0;
        padding: 0
    }

    ::file-selector-button {
        box-sizing: border-box;
        border: 0 solid;
        margin: 0;
        padding: 0
    }

    html,
    :host {
        -webkit-text-size-adjust: 100%;
        tab-size: 4;
        line-height: 1.5;
        font-family: var(--default-font-family, ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");
        font-feature-settings: var(--default-font-feature-settings, normal);
        font-variation-settings: var(--default-font-variation-settings, normal);
        -webkit-tap-highlight-color: transparent
    }

    hr {
        height: 0;
        color: inherit;
        border-top-width: 1px
    }

    abbr:where([title]) {
        -webkit-text-decoration: underline dotted;
        text-decoration: underline dotted
    }

    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
        font-size: inherit;
        font-weight: inherit
    }

    a {
        color: inherit;
        -webkit-text-decoration: inherit;
        -webkit-text-decoration: inherit;
        -webkit-text-decoration: inherit;
        text-decoration: inherit
    }

    b,
    strong {
        font-weight: bolder
    }

    code,
    kbd,
    samp,
    pre {
        font-family: var(--default-mono-font-family, ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);
        font-feature-settings: var(--default-mono-font-feature-settings, normal);
        font-variation-settings: var(--default-mono-font-variation-settings, normal);
        font-size: 1em
    }

    small {
        font-size: 80%
    }

    sub,
    sup {
        vertical-align: baseline;
        font-size: 75%;
        line-height: 0;
        position: relative
    }

    sub {
        bottom: -.25em
    }

    sup {
        top: -.5em
    }

    table {
        text-indent: 0;
        border-color: inherit;
        border-collapse: collapse
    }

    :-moz-focusring {
        outline: auto
    }

    progress {
        vertical-align: baseline
    }

    summary {
        display: list-item
    }

    ol,
    ul,
    menu {
        list-style: none
    }

    img,
    svg,
    video,
    canvas,
    audio,
    iframe,
    embed,
    object {
        vertical-align: middle;
        display: block
    }

    img,
    video {
        max-width: 100%;
        height: auto
    }

    button,
    input,
    select,
    optgroup,
    textarea {
        font: inherit;
        font-feature-settings: inherit;
        font-variation-settings: inherit;
        letter-spacing: inherit;
        color: inherit;
        opacity: 1;
        background-color: #0000;
        border-radius: 0
    }

    ::file-selector-button {
        font: inherit;
        font-feature-settings: inherit;
        font-variation-settings: inherit;
        letter-spacing: inherit;
        color: inherit;
        opacity: 1;
        background-color: #0000;
        border-radius: 0
    }

    :where(select:is([multiple], [size])) optgroup {
        font-weight: bolder
    }

    :where(select:is([multiple], [size])) optgroup option {
        padding-inline-start: 20px
    }

    ::file-selector-button {
        margin-inline-end: 4px
    }

    ::placeholder {
        opacity: 1
    }

    @supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px) {
        ::placeholder {
            color: currentColor
        }

        @supports (color:color-mix(in lab, red, red)) {
            ::placeholder {
                color: color-mix(in oklab, currentcolor 50%, transparent)
            }
        }
    }

    textarea {
        resize: vertical
    }

    ::-webkit-search-decoration {
        -webkit-appearance: none
    }

    ::-webkit-date-and-time-value {
        min-height: 1lh;
        text-align: inherit
    }

    ::-webkit-datetime-edit {
        display: inline-flex
    }

    ::-webkit-datetime-edit-fields-wrapper {
        padding: 0
    }

    ::-webkit-datetime-edit {
        padding-block: 0
    }

    ::-webkit-datetime-edit-year-field {
        padding-block: 0
    }

    ::-webkit-datetime-edit-month-field {
        padding-block: 0
    }

    ::-webkit-datetime-edit-day-field {
        padding-block: 0
    }

    ::-webkit-datetime-edit-hour-field {
        padding-block: 0
    }

    ::-webkit-datetime-edit-minute-field {
        padding-block: 0
    }

    ::-webkit-datetime-edit-second-field {
        padding-block: 0
    }

    ::-webkit-datetime-edit-millisecond-field {
        padding-block: 0
    }

    ::-webkit-datetime-edit-meridiem-field {
        padding-block: 0
    }

    ::-webkit-calendar-picker-indicator {
        line-height: 1
    }

    :-moz-ui-invalid {
        box-shadow: none
    }

    button,
    input:where([type=button], [type=reset], [type=submit]) {
        appearance: button
    }

    ::file-selector-button {
        appearance: button
    }

    ::-webkit-inner-spin-button {
        height: auto
    }

    ::-webkit-outer-spin-button {
        height: auto
    }

    [hidden]:where(:not([hidden=until-found])) {
        display: none !important
    }
}

@layer components, utilities;

:root {
    color-scheme: light dark;
    color: #ffffffde;
    font-synthesis: none;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-color: #242424;
    font-family: system-ui, Avenir, Helvetica, Arial, sans-serif;
    font-weight: 400;
    line-height: 1.5
}

a {
    color: #646cff;
    -webkit-text-decoration: inherit;
    -webkit-text-decoration: inherit;
    text-decoration: inherit;
    font-weight: 500
}

a:hover {
    color: #535bf2
}

body {
    place-items: center;
    min-width: 320px;
    min-height: 100vh;
    margin: 0;
    display: flex
}

h1 {
    font-size: 3.2em;
    line-height: 1.1
}

button {
    cursor: pointer;
    background-color: #1a1a1a;
    border: 1px solid #0000;
    border-radius: 8px;
    padding: .6em 1.2em;
    font-family: inherit;
    font-size: 1em;
    font-weight: 500;
    transition: border-color .25s
}

button:hover {
    border-color: #646cff
}

button:focus,
button:focus-visible {
    outline: 4px auto -webkit-focus-ring-color
}

@media (prefers-color-scheme:light) {
    :root {
        color: #213547;
        background-color: #fff
    }

    a:hover {
        color: #747bff
    }

    button {
        background-color: #f9f9f9
    }
}

/* --- App overrides --- */
html,
body,
#root {
    height: 100%;
}

body {
    display: block;
    /* override previous flex centering */
    min-height: 100vh;
    background-color: #252d33;
    /* deep gray background */
    color: #e5e7eb;
    /* gray-200 text */
}

/* Optional container rhythm */
.container-px {
    padding-left: 1rem;
    padding-right: 1rem;
}

@media (min-width: 1024px) {
    .container-px {
        padding-left: 2rem;
        padding-right: 2rem;
    }
}