/* ==========================================================================
   Colour Essentials — app layer on top of the TenX design system (tenx.css).
   ========================================================================== */

:root {
    --cl-rail: 14.5rem;
    --cl-tabbar: 4rem;
    --cl-gutter: var(--tx-space-4);
}

html, body { min-height: 100%; }

body {
    overscroll-behavior-y: none;
    -webkit-tap-highlight-color: transparent;
}

h1:focus, h1:focus-visible { outline: none; }
a { color: inherit; }

/* ---------- Shell ---------- */
.cl-app { min-height: 100vh; min-height: 100dvh; }

.cl-main {
    min-width: 0;
    padding-bottom: calc(var(--cl-tabbar) + var(--tx-inset-bottom) + var(--tx-space-6));
}

.cl-page {
    width: min(100%, 76rem);
    margin: 0 auto;
    /* Keep clear of the status bar and any cutout. */
    padding: calc(var(--tx-space-6) + var(--tx-inset-top)) calc(var(--cl-gutter) + var(--tx-inset-right))
             var(--tx-space-6) calc(var(--cl-gutter) + var(--tx-inset-left));
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--tx-space-5);
    align-content: start;
    animation: tx-fade-up var(--tx-duration-slow) var(--tx-ease);
}

.cl-page--narrow { width: min(100%, 46rem); }

.cl-rail { display: none; }

.cl-brand {
    display: flex;
    align-items: center;
    gap: var(--tx-space-3);
    padding: var(--tx-space-2);
    text-decoration: none;
    font-weight: 600;
    letter-spacing: var(--tx-tracking-tight);
}

.cl-brand__mark {
    display: grid;
    place-items: center;
    width: 2.25rem;
    height: 2.25rem;
    flex: none;
    border-radius: 10px;
    background: var(--tx-accent);
    color: var(--tx-on-accent);
}

.cl-brand__mark--lg { width: 3rem; height: 3rem; border-radius: 14px; }
.cl-mark { width: 68%; height: 68%; display: block; }

/* Bottom tabs (phones) */
.cl-tabbar {
    position: fixed;
    z-index: 50;
    left: 0;
    right: 0;
    bottom: 0;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    height: calc(var(--cl-tabbar) + var(--tx-inset-bottom));
    padding-bottom: var(--tx-inset-bottom);
    background: color-mix(in srgb, var(--tx-bg) 84%, transparent);
    backdrop-filter: blur(18px) saturate(1.4);
    -webkit-backdrop-filter: blur(18px) saturate(1.4);
    border-top: 1px solid var(--tx-border-subtle);
}

.cl-tab {
    display: grid;
    justify-items: center;
    align-content: center;
    gap: 3px;
    color: var(--tx-fg-subtle);
    text-decoration: none;
    font-size: 0.6875rem;
    font-weight: 500;
    transition: color var(--tx-duration) var(--tx-ease);
}

.cl-tab__icon {
    display: grid;
    place-items: center;
    width: 2.75rem;
    height: 1.75rem;
    border-radius: var(--tx-radius-full);
    font-size: 1.25rem;
    transition: background-color var(--tx-duration) var(--tx-ease);
}

.cl-tab.active { color: var(--tx-fg); }
.cl-tab.active .cl-tab__icon { background: var(--tx-surface-active); }

@media (max-width: 899px) {
    .tx-toaster { bottom: calc(var(--cl-tabbar) + var(--tx-inset-bottom) + var(--tx-space-3)); }
}

@media (min-width: 900px) {
    :root { --cl-gutter: var(--tx-space-8); }

    .cl-app { display: grid; grid-template-columns: var(--cl-rail) minmax(0, 1fr); }
    .cl-tabbar { display: none; }
    .cl-main { padding-bottom: var(--tx-space-10); }
    .cl-page { padding-top: calc(var(--tx-space-8) + var(--tx-inset-top)); gap: var(--tx-space-6); }

    .cl-rail {
        position: sticky;
        top: 0;
        height: 100vh;
        display: flex;
        flex-direction: column;
        gap: var(--tx-space-6);
        padding: var(--tx-space-6) var(--tx-space-4);
        border-right: 1px solid var(--tx-border-subtle);
        background: var(--tx-bg-subtle);
    }

    .cl-rail__nav { display: grid; gap: 2px; }

    .cl-rail__link {
        display: flex;
        align-items: center;
        gap: var(--tx-space-3);
        height: 2.5rem;
        padding: 0 var(--tx-space-3);
        border-radius: var(--tx-radius-sm);
        color: var(--tx-fg-muted);
        text-decoration: none;
        font-size: var(--tx-text-sm);
        font-weight: 500;
        transition: background-color var(--tx-duration-fast) var(--tx-ease), color var(--tx-duration-fast) var(--tx-ease);
    }

    .cl-rail__link:hover { background: var(--tx-surface-hover); color: var(--tx-fg); }
    .cl-rail__link.active { background: var(--tx-surface); color: var(--tx-fg); box-shadow: var(--tx-shadow-xs), 0 0 0 1px var(--tx-border-subtle); }

    .cl-rail__foot {
        margin-top: auto;
        display: flex;
        gap: var(--tx-space-2);
        padding: var(--tx-space-3);
        color: var(--tx-fg-subtle);
        font-size: var(--tx-text-xs);
        line-height: var(--tx-leading-snug);
    }
}

/* ---------- Header ---------- */
.cl-header { display: flex; align-items: flex-start; gap: var(--tx-space-4); }
.cl-header__titles { display: grid; gap: 2px; min-width: 0; }

.cl-header__title {
    margin: 0;
    font-size: var(--tx-text-2xl);
    font-weight: 600;
    letter-spacing: var(--tx-tracking-tight);
    line-height: var(--tx-leading-tight);
}

.cl-header__subtitle { margin: 0; font-size: var(--tx-text-sm); color: var(--tx-fg-muted); text-wrap: pretty; }
.cl-header__actions { margin-left: auto; display: flex; gap: var(--tx-space-2); flex: none; }

/* ---------- Panels & layout ---------- */
.cl-panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--tx-space-4);
    padding: var(--tx-space-5);
    background: var(--tx-surface);
    border: 1px solid var(--tx-border);
    border-radius: var(--tx-radius-xl);
    min-width: 0;
}

.cl-layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--tx-space-5); align-items: start; }

@media (min-width: 1040px) {
    .cl-layout { grid-template-columns: minmax(0, 24rem) minmax(0, 1fr); gap: var(--tx-space-6); }
    .cl-input { position: sticky; top: var(--tx-space-8); }
}

.cl-group { display: grid; gap: var(--tx-space-2); min-width: 0; }

.cl-group__title {
    margin: 0 0 var(--tx-space-1);
    padding: 0 var(--tx-space-1);
    font-size: var(--tx-text-xs);
    font-weight: 600;
    letter-spacing: var(--tx-tracking-wide);
    text-transform: uppercase;
    color: var(--tx-fg-subtle);
}

.cl-field { display: grid; gap: var(--tx-space-2); min-width: 0; }
.cl-field__label { font-size: var(--tx-text-sm); font-weight: 500; }
.cl-hint { margin: 0; font-size: var(--tx-text-xs); color: var(--tx-fg-subtle); line-height: var(--tx-leading-snug); text-wrap: pretty; }
.cl-hint code { font-family: var(--tx-font-mono); font-size: 0.95em; padding: 0.1em 0.3em; border-radius: var(--tx-radius-xs); background: var(--tx-surface-sunken); }

/* ---------- Chips & segmented ---------- */
.cl-chips { display: flex; flex-wrap: wrap; align-items: center; gap: var(--tx-space-2); }

.cl-chip {
    all: unset;
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 2rem;
    padding: 0 var(--tx-space-3);
    border: 1px solid var(--tx-border);
    border-radius: var(--tx-radius-full);
    background: var(--tx-surface);
    color: var(--tx-fg-muted);
    font-size: var(--tx-text-xs);
    font-weight: 500;
    cursor: pointer;
    transition: background-color var(--tx-duration) var(--tx-ease), color var(--tx-duration) var(--tx-ease), border-color var(--tx-duration) var(--tx-ease);
}

.cl-chip:hover:not(:disabled) { color: var(--tx-fg); border-color: var(--tx-border-strong); }
.cl-chip:focus-visible { outline: 2px solid var(--tx-ring); outline-offset: 2px; }
.cl-chip.is-selected { background: var(--tx-accent); border-color: var(--tx-accent); color: var(--tx-on-accent); }
.cl-chip:disabled { opacity: 0.4; cursor: not-allowed; }

.cl-segmented {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: 1fr;
    gap: 4px;
    padding: 4px;
    border-radius: var(--tx-radius-md);
    background: var(--tx-surface-sunken);
}

.cl-segmented__item {
    all: unset;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--tx-space-2);
    padding: var(--tx-space-2);
    border-radius: var(--tx-radius-sm);
    color: var(--tx-fg-muted);
    font-size: var(--tx-text-xs);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: background-color var(--tx-duration) var(--tx-ease), color var(--tx-duration) var(--tx-ease), box-shadow var(--tx-duration) var(--tx-ease);
}

.cl-segmented__item:hover { color: var(--tx-fg); }
.cl-segmented__item:focus-visible { outline: 2px solid var(--tx-ring); outline-offset: 1px; }
.cl-segmented__item.is-selected { background: var(--tx-surface-raised); color: var(--tx-fg); box-shadow: var(--tx-shadow-sm); }

/* ---------- Results ---------- */
.cl-results { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--tx-space-4); align-content: start; min-width: 0; }
.cl-results__bar { display: flex; align-items: center; gap: var(--tx-space-3); flex-wrap: wrap; min-width: 0; }
.cl-results__bar .cl-segmented { flex: 1; min-width: 10rem; }
.cl-results__tools { margin-left: auto; display: flex; gap: var(--tx-space-2); }

.cl-digests { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--tx-space-2); min-width: 0; }

.cl-digest {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--tx-space-2);
    padding: var(--tx-space-3) var(--tx-space-4);
    border: 1px solid var(--tx-border);
    border-radius: var(--tx-radius-lg);
    background: var(--tx-surface);
    min-width: 0;
    transition: border-color var(--tx-duration) var(--tx-ease), background-color var(--tx-duration) var(--tx-ease);
}

.cl-digest--match {
    border-color: var(--tx-success);
    background: color-mix(in srgb, var(--tx-success) 8%, var(--tx-surface));
}

.cl-digest__head { display: flex; align-items: center; gap: var(--tx-space-2); flex-wrap: wrap; min-width: 0; }
.cl-digest__name { font-size: var(--tx-text-sm); font-weight: 600; }
.cl-digest__bits { font-size: var(--tx-text-xs); color: var(--tx-fg-subtle); font-variant-numeric: tabular-nums; }
.cl-digest__tools { margin-left: auto; display: flex; gap: var(--tx-space-1); }

.cl-digest__value {
    margin: 0;
    font-family: var(--tx-font-mono);
    font-size: var(--tx-text-sm);
    line-height: var(--tx-leading-snug);
    word-break: break-all;
    overflow-wrap: anywhere;
    user-select: all;
    min-width: 0;
}

.cl-digest__value--empty { color: var(--tx-fg-subtle); font-family: inherit; font-size: var(--tx-text-sm); user-select: none; }
.cl-digest__note { margin: 0; font-size: var(--tx-text-xs); color: var(--tx-fg-subtle); line-height: var(--tx-leading-snug); }
.cl-digest--legacy .cl-digest__name { color: var(--tx-fg-muted); }

/* ---------- Guide ---------- */
.cl-prose { display: grid; gap: var(--tx-space-4); line-height: var(--tx-leading-normal); }
.cl-prose h2 { margin: var(--tx-space-2) 0 0; font-size: var(--tx-text-lg); font-weight: 600; letter-spacing: var(--tx-tracking-tight); }
.cl-prose h2:first-child { margin-top: 0; }
.cl-prose p { margin: 0; color: var(--tx-fg-muted); text-wrap: pretty; }
.cl-prose strong { color: var(--tx-fg); font-weight: 600; }
.cl-prose code { font-family: var(--tx-font-mono); font-size: 0.9em; padding: 0.1em 0.35em; border-radius: var(--tx-radius-xs); background: var(--tx-surface-sunken); }

/* ---------- Input side ---------- */
.cl-input { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--tx-space-4); align-content: start; }

.cl-preview {
    display: grid;
    align-content: end;
    gap: 2px;
    min-height: 9rem;
    padding: var(--tx-space-4);
    border-radius: var(--tx-radius-lg);
    background: var(--cl-current);
    color: var(--cl-current-text);
    /* A checkerboard shows through a translucent colour, the way every picker does it. */
    background-image:
        linear-gradient(var(--cl-current), var(--cl-current)),
        conic-gradient(var(--tx-surface-sunken) 0 25%, var(--tx-surface) 0 50%, var(--tx-surface-sunken) 0 75%, var(--tx-surface) 0);
    background-size: 100% 100%, 16px 16px;
}

.cl-preview__hex { font-family: var(--tx-font-mono); font-size: 1.6rem; font-weight: 600; letter-spacing: -0.01em; }
.cl-preview__name { font-size: var(--tx-text-sm); opacity: 0.85; }

.cl-pickrow { display: flex; align-items: flex-end; gap: var(--tx-space-3); }
.cl-pickrow > :last-child { flex: 1; min-width: 0; }

.cl-native {
    width: 3rem;
    height: 2.5rem;
    padding: 0;
    border: 1px solid var(--tx-border);
    border-radius: var(--tx-radius-md);
    background: none;
    cursor: pointer;
    flex: none;
}

.cl-native::-webkit-color-swatch-wrapper { padding: 3px; }
.cl-native::-webkit-color-swatch { border: none; border-radius: calc(var(--tx-radius-md) - 3px); }
.cl-hexfield input { font-family: var(--tx-font-mono); }

.cl-sliders { display: grid; gap: var(--tx-space-3); }
.cl-slider { display: grid; gap: 2px; }
.cl-slider__head { display: flex; justify-content: space-between; font-size: var(--tx-text-xs); color: var(--tx-fg-muted); }
.cl-slider__value { font-variant-numeric: tabular-nums; color: var(--tx-fg); }
.cl-range { width: 100%; accent-color: var(--tx-accent); cursor: pointer; }

.cl-field { display: grid; gap: var(--tx-space-2); min-width: 0; }
.cl-field__row { display: flex; align-items: baseline; justify-content: space-between; gap: var(--tx-space-3); }
.cl-field__label { font-size: var(--tx-text-sm); font-weight: 500; }
.cl-hint { margin: 0; font-size: var(--tx-text-xs); color: var(--tx-fg-subtle); line-height: var(--tx-leading-snug); text-wrap: pretty; }
.cl-warn { margin: 0; font-size: var(--tx-text-sm); color: var(--tx-danger); }
.cl-panel__title { margin: 0; font-size: var(--tx-text-sm); font-weight: 600; }

.cl-linkish { all: unset; cursor: pointer; font-size: var(--tx-text-xs); color: var(--tx-fg-subtle); }
.cl-linkish:hover { color: var(--tx-fg); text-decoration: underline; }
.cl-linkish:focus-visible { outline: 2px solid var(--tx-ring); outline-offset: 2px; }

/* ---------- Swatches ---------- */
.cl-swatch {
    all: unset;
    box-sizing: border-box;
    display: grid;
    align-content: end;
    gap: 1px;
    min-height: 3rem;
    padding: var(--tx-space-2);
    border-radius: var(--tx-radius-md);
    background: var(--cl-swatch);
    color: var(--cl-swatch-text);
    cursor: pointer;
    transition: transform var(--tx-duration-fast) var(--tx-ease), box-shadow var(--tx-duration) var(--tx-ease);
}

.cl-swatch:hover { transform: translateY(-2px); box-shadow: var(--tx-shadow-md); }
.cl-swatch:focus-visible { outline: 2px solid var(--tx-ring); outline-offset: 2px; }
.cl-swatch--lg { min-height: 6rem; }
.cl-swatch__label { font-size: var(--tx-text-xs); font-weight: 600; opacity: 0.85; }
.cl-swatch__hex { font-family: var(--tx-font-mono); font-size: var(--tx-text-xs); }

.cl-recent { display: grid; grid-template-columns: repeat(auto-fill, minmax(2.5rem, 1fr)); gap: var(--tx-space-2); }
.cl-recent__item { min-height: 2.5rem; border: 1px solid var(--tx-border-subtle); }

/* ---------- Results ---------- */
.cl-results { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--tx-space-4); align-content: start; min-width: 0; }
.cl-results__bar { display: flex; align-items: center; gap: var(--tx-space-3); flex-wrap: wrap; }
.cl-results__bar > *:last-child { margin-left: auto; }

.cl-formats { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 15rem), 1fr)); gap: var(--tx-space-2); }

.cl-format {
    all: unset;
    box-sizing: border-box;
    display: grid;
    gap: 1px;
    padding: var(--tx-space-2) var(--tx-space-3);
    border: 1px solid var(--tx-border);
    border-radius: var(--tx-radius-md);
    cursor: pointer;
    min-width: 0;
}

.cl-format:hover { border-color: var(--tx-border-strong); background: var(--tx-surface-hover); }
.cl-format:focus-visible { outline: 2px solid var(--tx-ring); outline-offset: 2px; }
.cl-format__name { font-size: 0.625rem; text-transform: uppercase; letter-spacing: var(--tx-tracking-wide); color: var(--tx-fg-subtle); }
.cl-format__value { font-family: var(--tx-font-mono); font-size: var(--tx-text-sm); word-break: break-all; }

.cl-onpair { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 10rem), 1fr)); gap: var(--tx-space-2); }

.cl-onpair__box {
    display: grid;
    gap: 2px;
    padding: var(--tx-space-4);
    border: 1px solid var(--tx-border);
    border-radius: var(--tx-radius-md);
    font-size: var(--tx-text-sm);
}

.cl-onpair__ratio { font-size: var(--tx-text-xs); opacity: 0.8; font-variant-numeric: tabular-nums; }

/* ---------- Contrast ---------- */
.cl-sample {
    display: grid;
    gap: var(--tx-space-3);
    padding: var(--tx-space-6);
    border: 1px solid var(--tx-border);
    border-radius: var(--tx-radius-xl);
}

.cl-sample p { margin: 0; text-wrap: pretty; }
.cl-sample__big { font-size: 1.5rem; font-weight: 600; letter-spacing: -0.01em; }
.cl-sample__body { font-size: 1rem; line-height: 1.6; }
.cl-sample__small { font-size: 0.8125rem; }

.cl-ratio {
    display: grid;
    gap: 2px;
    padding: var(--tx-space-5);
    border: 1px solid var(--tx-border);
    border-radius: var(--tx-radius-xl);
    background: var(--tx-surface);
}

.cl-ratio--aaa { border-color: var(--tx-success); background: color-mix(in srgb, var(--tx-success) 8%, var(--tx-surface)); }
.cl-ratio--aa { border-color: var(--tx-success); background: color-mix(in srgb, var(--tx-success) 5%, var(--tx-surface)); }
.cl-ratio--large { border-color: var(--tx-warning); background: color-mix(in srgb, var(--tx-warning) 7%, var(--tx-surface)); }
.cl-ratio--fail { border-color: var(--tx-danger); background: color-mix(in srgb, var(--tx-danger) 7%, var(--tx-surface)); }

.cl-ratio__value { margin: 0; font-size: 2.6rem; font-weight: 600; font-variant-numeric: tabular-nums; letter-spacing: -0.03em; line-height: 1; }
.cl-ratio__value span { font-size: 1.2rem; color: var(--tx-fg-subtle); }
.cl-ratio__verdict { margin: 0; font-size: var(--tx-text-sm); color: var(--tx-fg-muted); }

.cl-levels { display: grid; gap: var(--tx-space-2); }
.cl-level { display: flex; align-items: flex-start; gap: var(--tx-space-3); font-size: var(--tx-text-sm); }
.cl-level__icon { line-height: 1.4; }
.cl-level.is-pass .cl-level__icon { color: var(--tx-success); }
.cl-level.is-fail .cl-level__icon { color: var(--tx-danger); }
.cl-level__label { display: block; font-weight: 500; }
.cl-level__note { display: block; font-size: var(--tx-text-xs); color: var(--tx-fg-subtle); }

.cl-pair-actions { display: flex; gap: var(--tx-space-2); flex-wrap: wrap; }
.cl-fix { display: flex; gap: var(--tx-space-4); align-items: stretch; }
.cl-fix > :first-child { flex: 0 0 8rem; }
.cl-fix__text { display: grid; gap: var(--tx-space-2); align-content: center; }

/* ---------- Palette ---------- */
.cl-palette { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 8rem), 1fr)); gap: var(--tx-space-2); }
.cl-scale { display: grid; grid-template-columns: repeat(auto-fit, minmax(4.5rem, 1fr)); gap: 2px; }
.cl-scale__step { border-radius: var(--tx-radius-sm); min-height: 4rem; }

.cl-export {
    margin: 0;
    padding: var(--tx-space-4);
    border-radius: var(--tx-radius-md);
    background: var(--tx-surface-sunken);
    font-family: var(--tx-font-mono);
    font-size: var(--tx-text-xs);
    line-height: 1.6;
    overflow-x: auto;
    white-space: pre;
}

/* ---------- Vision ---------- */
.cl-vision { display: grid; gap: var(--tx-space-3); }
.cl-vision__row { display: grid; gap: var(--tx-space-2); }
.cl-vision__label { display: flex; align-items: baseline; gap: var(--tx-space-2); flex-wrap: wrap; }
.cl-vision__name { font-size: var(--tx-text-sm); font-weight: 500; }
.cl-vision__prevalence { font-size: var(--tx-text-xs); color: var(--tx-fg-subtle); }
.cl-vision__swatches { display: flex; gap: 2px; border-radius: var(--tx-radius-md); overflow: hidden; }
.cl-vision__swatch { flex: 1; min-height: 3rem; }

.cl-clashes { margin: var(--tx-space-2) 0; padding-left: 0; list-style: none; display: grid; gap: var(--tx-space-2); }
.cl-clashes li { display: flex; align-items: center; gap: var(--tx-space-2); font-size: var(--tx-text-sm); }
.cl-clash__dot { width: 1rem; height: 1rem; border-radius: 50%; border: 1px solid var(--tx-border); flex: none; }

/* ---------- Guide ---------- */
.cl-prose { display: grid; gap: var(--tx-space-4); line-height: var(--tx-leading-normal); }
.cl-prose h2 { margin: var(--tx-space-2) 0 0; font-size: var(--tx-text-lg); font-weight: 600; letter-spacing: var(--tx-tracking-tight); }
.cl-prose h2:first-child { margin-top: 0; }
.cl-prose p { margin: 0; color: var(--tx-fg-muted); text-wrap: pretty; }
.cl-prose em { font-style: normal; font-family: var(--tx-font-mono); font-size: 0.92em; }

/* ---------- Settings ---------- */
.cl-setting { display: flex; flex-wrap: wrap; align-items: center; gap: var(--tx-space-4); }
.cl-setting__text { display: grid; gap: 2px; flex: 1; min-width: 10rem; }
.cl-setting__label { font-weight: 500; }
.cl-setting__desc { font-size: var(--tx-text-sm); color: var(--tx-fg-muted); text-wrap: pretty; }

.cl-about { display: flex; align-items: flex-start; gap: var(--tx-space-4); }
.cl-about p { margin: 0 0 var(--tx-space-1); }
.cl-about__name { font-weight: 600; }

.cl-tenx {
    all: unset;
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    gap: var(--tx-space-2);
    margin-top: var(--tx-space-3);
    padding: var(--tx-space-2) var(--tx-space-4);
    border: 1px solid var(--tx-border);
    border-radius: var(--tx-radius-full);
    background: var(--tx-surface);
    color: var(--tx-fg);
    font-size: var(--tx-text-sm);
    font-weight: 500;
    cursor: pointer;
    transition: background-color var(--tx-duration) var(--tx-ease), border-color var(--tx-duration) var(--tx-ease), transform var(--tx-duration-fast) var(--tx-ease);
}

.cl-tenx:hover { background: var(--tx-surface-hover); border-color: var(--tx-border-strong); }
.cl-tenx:active { transform: scale(0.98); }
.cl-tenx:focus-visible { outline: 2px solid var(--tx-ring); outline-offset: 2px; }
.cl-tenx__go { font-size: 0.9em; color: var(--tx-fg-subtle); }

/* ---------- Blazor plumbing ---------- */
#blazor-error-ui {
    color-scheme: light only;
    position: fixed;
    z-index: 3000;
    left: 0;
    bottom: 0;
    display: none;
    width: 100%;
    padding: 0.75rem 1.25rem calc(0.75rem + var(--tx-inset-bottom));
    background: var(--tx-danger-soft);
    color: var(--tx-danger);
    box-shadow: 0 -1px 2px rgb(0 0 0 / 0.2);
    font-size: var(--tx-text-sm);
}

#blazor-error-ui .dismiss {
    position: absolute;
    right: 0.75rem;
    top: 0.5rem;
    cursor: pointer;
}