/*
 * The UI layer: a reset, then plain elements, then the generic components every page
 * shares (card, segmented control, tabs, menus, notice, badge, chip, KPI, bar list).
 *
 * Written against elements and roles rather than utility classes, so the markup says what a
 * thing is and this file says what that looks like. Where a class is unavoidable it names a
 * component, never a declaration: .segmented, not .d-flex. State lives in attributes
 * (:checked, aria-pressed, aria-selected, aria-current, aria-expanded, [data-level]).
 *
 * Everything is neutral grey; colour only marks status ([data-level]) and data series
 * ([data-series]). Selected states always add a border, bar or outline for forced colors.
 *
 * Layout uses logical properties (inline/block) throughout, so a right-to-left locale would
 * mirror without a second stylesheet.
 */

/* ── Reset ──────────────────────────────────────────────────────────────── */

*,
*::before,
*::after {
    box-sizing: border-box;
}

* {
    margin: 0;
}

html {
    -webkit-text-size-adjust: 100%;
    tab-size: 4;
}

body {
    min-block-size: 100dvb;
    background: var(--surface-1);
    color: var(--text-1);
    font-family: var(--font-sans);
    font-size: var(--font-size-1);
    line-height: var(--line-height-normal);
    -webkit-font-smoothing: antialiased;
}

img,
svg,
video,
canvas {
    display: block;
    max-inline-size: 100%;
}

svg {
    display: inline-block;
    vertical-align: -0.125em;
}

input,
button,
textarea,
select {
    font: inherit;
    color: inherit;
}

button {
    cursor: pointer;
}

:where(p, h1, h2, h3, h4, h5, h6) {
    overflow-wrap: break-word;
}

/* An outline, not only a shadow: it is what forced-colors mode keeps. */
:focus-visible {
    outline: 2px solid var(--focus-color);
    outline-offset: 2px;
}

:is(button, input, select, textarea, a):focus-visible {
    box-shadow: var(--focus-halo);
}

/* Keyboard focus is drawn by the ring above; a mouse click should not paint one. Zero
   specificity, so the forced-colors state outline survives a mouse click. */
:where(:focus:not(:focus-visible)) {
    outline: none;
}

/* ── Typography ─────────────────────────────────────────────────────────── */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    text-wrap: balance;
}

h1 {
    font-size: var(--font-size-4);
}

h2 {
    font-size: var(--font-size-3);
}

h3 {
    font-size: var(--font-size-2);
}

h4,
h5,
h6 {
    font-size: var(--font-size-1);
}

p {
    text-wrap: pretty;
}

small {
    font-size: var(--font-size-0);
    color: var(--text-2);
}

code,
kbd,
samp,
pre {
    font-family: var(--font-mono);
    font-size: 0.9em;
}

code {
    padding-inline: 0.2em;
    border-radius: var(--radius-1);
    background: var(--surface-3);
}

pre {
    overflow-x: auto;
    padding: var(--size-3);
    border-radius: var(--radius-2);
    background: var(--surface-3);
}

pre code {
    padding: 0;
    background: none;
}

hr {
    border: none;
    border-block-start: 1px solid var(--border);
    margin-block: var(--size-4);
}

/* Colour no longer marks a link, so the underline has to. */
a {
    color: var(--text-1);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 0.2em;
}

a:hover {
    text-decoration-thickness: 2px;
}

/* An address that opens the IP info dialog. */
.ip-link {
    text-decoration-style: dotted;
}

.ip-link:hover {
    text-decoration-style: solid;
}

/* ── Layout primitives ──────────────────────────────────────────────────── */

/* Vertical rhythm without a margin utility on every child. */
.stack {
    display: flex;
    flex-direction: column;
    gap: var(--stack-gap, var(--size-3));
}

/* A row of things that wraps when it runs out of room. */
.cluster {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--cluster-gap, var(--size-2));
}

.cluster[data-justify='between'] {
    justify-content: space-between;
}

.cluster[data-justify='end'] {
    justify-content: flex-end;
}

/* Columns that decide their own count from the width available. */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(var(--grid-min, 14rem), 1fr));
    gap: var(--grid-gap, var(--size-3));
}

.visually-hidden:not(:focus-visible) {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
}

/* ── Series slots ───────────────────────────────────────────────────────── */

/* One slot per chart series; every component that shows a series colour reads
   --series-color, so the palette lives in tokens.css only. */
[data-series='1'] {
    --series-color: var(--series-1);
}

[data-series='2'] {
    --series-color: var(--series-2);
}

[data-series='3'] {
    --series-color: var(--series-3);
}

[data-series='4'] {
    --series-color: var(--series-4);
}

[data-series='5'] {
    --series-color: var(--series-5);
}

[data-series='6'] {
    --series-color: var(--series-6);
}

[data-series='7'] {
    --series-color: var(--series-7);
}

[data-series='8'] {
    --series-color: var(--series-8);
}

[data-series='others'] {
    --series-color: var(--series-others);
}

/* ── Dialog and drawer ──────────────────────────────────────────────────── */

dialog {
    max-inline-size: min(48rem, 92vw);
    max-block-size: 85dvb;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-3);
    background: var(--surface-2);
    color: var(--text-1);
    box-shadow: var(--shadow-2);
}

/* The reset's margin: 0 would pin a modal dialog to the corner. */
dialog:modal {
    margin: auto;
}

dialog::backdrop {
    background: var(--backdrop);
    backdrop-filter: blur(2px);
}

dialog > header,
.dialog-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--size-3);
    padding: var(--size-3) var(--size-4);
    border-block-end: 1px solid var(--border);
}

.dialog-body {
    padding: var(--size-4);
    overflow-y: auto;
}

.dialog-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--size-2);
    padding: var(--size-3) var(--size-4);
    border-block-start: 1px solid var(--border);
}

/* A full-height panel from the inline end, sliding in on open. */
dialog.drawer {
    inset-block: 0;
    inset-inline: auto 0;
    inline-size: min(44rem, 100vw);
    max-inline-size: 100vw;
    block-size: 100dvb;
    max-block-size: 100dvb;
    margin: 0;
    border: none;
    border-inline-start: 1px solid var(--border-strong);
    border-radius: 0;
    translate: 100% 0;
    transition:
        translate var(--duration-normal) var(--ease-out),
        overlay var(--duration-normal) allow-discrete,
        display var(--duration-normal) allow-discrete;
}

dialog.drawer:dir(rtl) {
    translate: -100% 0;
}

dialog.drawer[open] {
    display: flex;
    flex-direction: column;
    translate: 0 0;
}

@starting-style {
    dialog.drawer[open] {
        translate: 100% 0;
    }

    dialog.drawer[open]:dir(rtl) {
        translate: -100% 0;
    }
}

dialog.drawer > .dialog-body {
    flex: 1;
}

/* ── Surfaces ───────────────────────────────────────────────────────────── */

.card {
    border: 1px solid var(--border);
    border-radius: var(--radius-3);
    background: var(--surface-2);
}

.card > header,
.card-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--size-2);
    padding: var(--size-3) var(--size-4);
    border-block-end: 1px solid var(--border);
    background: var(--surface-3);
    border-start-start-radius: inherit;
    border-start-end-radius: inherit;
    font-weight: var(--font-weight-semibold);
}

.card-body {
    padding: var(--size-5);
}

.card > footer,
.card-footer {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--size-2);
    padding: var(--size-3) var(--size-4);
    border-block-start: 1px solid var(--border);
    color: var(--text-2);
    font-size: var(--font-size-0);
    border-end-start-radius: inherit;
    border-end-end-radius: inherit;
}

/* Secondary text in a card header: a caveat, a count, a source. */
.card-meta {
    color: var(--text-2);
    font-size: var(--font-size-0);
    font-weight: var(--font-weight-normal);
}

.page-lede {
    color: var(--text-2);
}

/* ── Forms ──────────────────────────────────────────────────────────────── */

label {
    font-size: var(--font-size-0);
}

input[type='text'],
input[type='search'],
input[type='number'],
input[type='email'],
input[type='url'],
input[type='date'],
input[type='datetime-local'],
select,
textarea {
    inline-size: 100%;
    min-inline-size: 0;
    padding: var(--size-2) var(--size-3);
    border: 1px solid var(--control-border);
    border-radius: var(--radius-2);
    background: var(--surface-2);
    color: var(--text-1);
    font-size: var(--font-size-0);
}

textarea {
    resize: vertical;
    field-sizing: content;
    min-block-size: 4lh;
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    border-color: var(--text-1);
}

input:disabled,
select:disabled,
textarea:disabled {
    background: var(--surface-3);
    color: var(--text-2);
    cursor: not-allowed;
}

input::placeholder,
textarea::placeholder {
    color: var(--text-3);
    opacity: 1;
}

input[aria-invalid='true'],
textarea[aria-invalid='true'],
select[aria-invalid='true'] {
    border-color: var(--danger);
}

select[multiple] {
    padding: var(--size-1);
}

select[multiple] option {
    padding: var(--size-1) var(--size-2);
    border-radius: var(--radius-1);
}

/* Native controls follow color-scheme, so they only need the accent. */
input[type='checkbox'],
input[type='radio'],
input[type='range'] {
    accent-color: var(--accent);
    inline-size: auto;
}

input[type='range'] {
    inline-size: 100%;
}

/* A labelled control with its label above it. */
.field {
    display: flex;
    flex-direction: column;
    gap: var(--size-1);
}

.field > label,
.field-label {
    color: var(--text-2);
    font-size: var(--font-size-00);
    font-weight: var(--font-weight-semibold);
}

/* A checkbox or radio beside its label. */
.choice {
    display: inline-flex;
    align-items: center;
    gap: var(--size-2);
    font-size: var(--font-size-0);
}

.choice input {
    flex-shrink: 0;
}

/* An on/off control that reads as one. */
.switch {
    display: inline-flex;
    align-items: center;
    gap: var(--size-2);
    font-size: var(--font-size-0);
    cursor: pointer;
}

.switch input {
    appearance: none;
    inline-size: 2.25rem;
    block-size: 1.25rem;
    flex-shrink: 0;
    padding: 2px;
    border: 1px solid var(--control-border);
    border-radius: var(--radius-round);
    background: var(--surface-3);
    transition: background var(--duration-fast) var(--ease-out);
    cursor: pointer;
}

.switch input::after {
    content: '';
    display: block;
    inline-size: 0.875rem;
    block-size: 0.875rem;
    border-radius: 50%;
    background: var(--text-2);
    transition: translate var(--duration-fast) var(--ease-out);
}

.switch input:checked {
    border-color: var(--accent);
    background: var(--accent);
}

.switch input:checked::after {
    translate: 1rem 0;
    background: var(--on-accent);
}

.switch input:dir(rtl):checked::after {
    translate: -1rem 0;
}

.switch input:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

/* Explanatory line under a control. */
.help {
    color: var(--text-2);
    font-size: var(--font-size-00);
}

/* Controls that read as one unit: a text field with a unit select and a button. */
.input-group {
    display: flex;
    align-items: stretch;
}

.input-group > * {
    border-radius: 0;
}

.input-group > :first-child {
    border-start-start-radius: var(--radius-2);
    border-end-start-radius: var(--radius-2);
}

.input-group > :last-child {
    border-start-end-radius: var(--radius-2);
    border-end-end-radius: var(--radius-2);
}

.input-group > :not(:first-child) {
    margin-inline-start: -1px;
}

.input-group input,
.input-group select {
    inline-size: auto;
    min-inline-size: 3rem;
}

.input-group :focus-visible {
    z-index: 1;
}

/* A definition list reads as two columns: the term, then what it says. */
dl {
    display: grid;
    grid-template-columns: minmax(6rem, auto) 1fr;
    gap: var(--size-2) var(--size-4);
    align-items: baseline;
}

dt {
    color: var(--text-2);
    font-size: var(--font-size-0);
}

dd {
    margin: 0;
    overflow-wrap: anywhere;
}

/* ── Buttons ────────────────────────────────────────────────────────────── */

button,
input[type='submit'],
input[type='reset'] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--size-2);
    padding: var(--size-2) var(--size-3);
    border: 1px solid var(--control-border);
    border-radius: var(--radius-2);
    background: var(--surface-2);
    color: var(--text-1);
    font-size: var(--font-size-0);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-tight);
    text-decoration: none;
    transition:
        background var(--duration-fast) var(--ease-out),
        border-color var(--duration-fast) var(--ease-out);
}

button:hover:not(:disabled, [aria-disabled='true']) {
    background: var(--surface-3);
}

/* aria-disabled keeps a busy button focusable; its click handler guards the action. */
button:is(:disabled, [aria-disabled='true']) {
    opacity: 0.55;
    cursor: not-allowed;
}

button[data-variant='primary'] {
    border-color: var(--accent);
    background: var(--accent);
    color: var(--on-accent);
}

button[data-variant='primary']:hover:not(:disabled, [aria-disabled='true']) {
    border-color: var(--accent-hover);
    background: var(--accent-hover);
}

button[data-variant='danger'] {
    border-color: var(--danger);
    background: var(--danger);
    color: var(--on-danger);
}

button[data-variant='danger']:hover:not(:disabled) {
    border-color: var(--danger-emphasis);
    background: var(--danger-emphasis);
}

button[data-variant='ghost'] {
    border-color: transparent;
    background: none;
}

button[data-variant='ghost']:hover:not(:disabled) {
    background: var(--surface-3);
}

button[data-variant='link'] {
    padding-inline: 0;
    border-color: transparent;
    background: none;
    color: var(--text-1);
    text-decoration: underline;
    text-underline-offset: 0.2em;
}

button[data-variant='link']:hover:not(:disabled) {
    background: none;
    text-decoration-thickness: 2px;
}

button[data-size='sm'] {
    padding: var(--size-1) var(--size-2);
    font-size: var(--font-size-00);
}

/* A close affordance: the × is drawn, not typed, so it needs no icon font. */
button[data-variant='close'] {
    padding: var(--size-1);
    border: none;
    background: none;
    color: var(--text-2);
    font-size: var(--font-size-2);
    line-height: 1;
}

button[data-variant='close']::before {
    content: '\00d7';
}

button[data-variant='close']:hover:not(:disabled) {
    color: var(--text-1);
    background: none;
}

/* Pressed is the accent fill: the strongest contrast the neutral palette has. */
button[aria-pressed='true'] {
    border-color: var(--accent);
    background: var(--accent);
    color: var(--on-accent);
    font-weight: var(--font-weight-semibold);
}

button[aria-pressed='true']:hover:not(:disabled) {
    border-color: var(--accent-hover);
    background: var(--accent-hover);
}

/* Buttons joined into one control. Unlike .segmented these are real buttons that do
   something when pressed, so "currently chosen" is aria-pressed rather than a checked
   input, and the state is announced instead of only drawn. */
.button-group {
    display: inline-flex;
    flex-wrap: wrap;
}

.button-group > button {
    border-radius: 0;
}

.button-group > button:not(:first-child) {
    margin-inline-start: -1px;
}

.button-group > button:first-child {
    border-start-start-radius: var(--radius-2);
    border-end-start-radius: var(--radius-2);
}

.button-group > button:last-child {
    border-start-end-radius: var(--radius-2);
    border-end-end-radius: var(--radius-2);
}

.button-group > button:hover,
.button-group > button[aria-pressed='true'],
.button-group > button:focus-visible {
    z-index: 1;
}

/* ── Segmented control ──────────────────────────────────────────────────── */

/*
 * One choice out of a few, drawn as joined buttons: the radio or checkbox stays in the DOM
 * and keeps the keyboard and the form value, while its label is what is painted. Checked
 * state comes from :checked, not from a class the server has to keep in sync, which is what
 * the old markup got wrong often enough to be worth saying twice.
 */
.segmented {
    display: inline-flex;
    flex-wrap: wrap;
}

.segmented input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.segmented label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--size-1);
    padding: var(--size-2) var(--size-3);
    border: 1px solid var(--control-border);
    background: var(--surface-2);
    color: var(--text-1);
    font-size: var(--font-size-0);
    line-height: var(--line-height-tight);
    cursor: pointer;
    transition: background var(--duration-fast) var(--ease-out);
}

.segmented label:not(:first-of-type) {
    margin-inline-start: -1px;
}

.segmented label:first-of-type {
    border-start-start-radius: var(--radius-2);
    border-end-start-radius: var(--radius-2);
}

.segmented label:last-of-type {
    border-start-end-radius: var(--radius-2);
    border-end-end-radius: var(--radius-2);
}

/* Fills its container instead of hugging its labels. */
.segmented[data-stretch] {
    display: flex;
}

.segmented[data-stretch] label {
    flex: 1;
}

.segmented label:hover {
    background: var(--surface-3);
}

.segmented input:checked + label {
    z-index: 1;
    border-color: var(--accent);
    background: var(--accent);
    color: var(--on-accent);
    font-weight: var(--font-weight-semibold);
}

.segmented input:focus-visible + label {
    z-index: 2;
    outline: 2px solid var(--focus-color);
    outline-offset: 2px;
    box-shadow: var(--focus-halo);
}

.segmented input:disabled + label {
    opacity: 0.55;
    cursor: not-allowed;
}

/* ── Tables ─────────────────────────────────────────────────────────────── */

/* Relative, so a visually hidden cell text is clipped here and cannot widen the page. */
.table-wrap {
    position: relative;
    overflow-x: auto;
}

table {
    inline-size: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-0);
}

th,
td {
    padding: var(--cell-pad-block) var(--cell-pad-inline);
    text-align: start;
    vertical-align: middle;
}

thead th {
    padding-block: calc(var(--cell-pad-block) + var(--size-1));
    border-block-end: 2px solid var(--border);
    color: var(--text-1);
    font-weight: var(--font-weight-semibold);
    white-space: nowrap;
}

/* Figures line up by their digits, read from the end of the cell. */
th[data-num],
td[data-num] {
    text-align: end;
    font-variant-numeric: tabular-nums;
}

td[data-kind='time'] {
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}

td[data-kind='address'] {
    font-family: var(--font-mono);
    font-size: 0.9em;
    overflow-wrap: anywhere;
}

tbody tr {
    border-block-end: 1px solid var(--border);
}

tbody tr:nth-child(odd) {
    background: color-mix(in oklab, var(--surface-3) 60%, transparent);
}

tbody tr:hover {
    background: var(--surface-3);
}

/* Selected is darker than hover and zebra, and carries a bar, so it never reads as either. */
tbody tr[aria-selected='true'] {
    background: var(--surface-4);
}

tbody tr[aria-selected='true'] > :first-child {
    box-shadow: inset 3px 0 0 var(--text-1);
}

tbody tr[aria-selected='true'] > :first-child:dir(rtl) {
    box-shadow: inset -3px 0 0 var(--text-1);
}

/* A heading row inside the body, naming the group of rows under it. */
tbody tr.row-group > th {
    padding-block: var(--size-2);
    background: var(--surface-3);
    color: var(--text-2);
    font-size: var(--font-size-00);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

tbody tr.row-group:hover {
    background: none;
}

/* A row that carries a status: the health table marks what is wrong, and the tint
   has to survive the striping and hover rules above it. */
tbody tr[data-level='warning'],
tbody tr[data-level='warning']:nth-child(odd) {
    background: color-mix(in oklab, var(--warning) 16%, var(--surface-2));
}

tbody tr[data-level='error'],
tbody tr[data-level='error']:nth-child(odd) {
    background: color-mix(in oklab, var(--danger) 16%, var(--surface-2));
}

tbody tr[data-level='warning']:hover {
    background: color-mix(in oklab, var(--warning) 26%, var(--surface-2));
}

tbody tr[data-level='error']:hover {
    background: color-mix(in oklab, var(--danger) 26%, var(--surface-2));
}

/* ── Tabs ───────────────────────────────────────────────────────────────── */

/* <div class="tabs" role="tablist"> of <button role="tab" aria-selected>, keyboard from
   nfsen-controls.js. */
.tabs {
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    gap: var(--size-2);
    padding: 0;
    box-shadow: inset 0 -1px 0 var(--border);
}

.tabs [role='tab'] {
    display: inline-flex;
    align-items: center;
    gap: var(--size-2);
    padding: var(--size-2) var(--size-3);
    border: none;
    border-block-end: 2px solid transparent;
    border-radius: 0;
    background: none;
    color: var(--text-2);
    font-size: var(--font-size-0);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
}

.tabs [role='tab']:not([aria-selected='true']):hover:not(:disabled) {
    border-block-end-color: var(--border-strong);
    background: none;
    color: var(--text-1);
}

.tabs [role='tab'][aria-selected='true'] {
    border-block-end-color: var(--text-1);
    background: none;
    color: var(--text-1);
    font-weight: var(--font-weight-semibold);
}

.tabs [role='tab']:focus-visible {
    outline-offset: -2px;
    box-shadow: none;
}

/* In-card tabs: a step smaller. */
.tabs[data-size='sm'] [role='tab'] {
    padding: var(--size-1) var(--size-2);
    font-size: var(--font-size-00);
}

[role='tabpanel'] {
    min-inline-size: 0;
}

/* ── Menus ──────────────────────────────────────────────────────────────── */

/* Popover: sb-popover > [slot=trigger].menu-toggle + .popover-list. The component draws the
   panel (starbase.css) and writes aria-expanded on the trigger; the list only holds the items. */
.menu-toggle::after {
    content: '';
    inline-size: 0.4em;
    block-size: 0.4em;
    margin-block-start: -0.2em;
    border-block-end: 1.5px solid currentcolor;
    border-inline-end: 1.5px solid currentcolor;
    rotate: 45deg;
    transition: rotate var(--duration-fast) var(--ease-out);
}

.menu-toggle[aria-expanded='true']::after {
    margin-block: 0.2em 0;
    rotate: 225deg;
}

.popover-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.popover-list li > :is(a, button, label),
.menu-item {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: var(--size-2);
    inline-size: 100%;
    padding: var(--size-1) var(--size-2);
    border: none;
    border-radius: var(--radius-1);
    background: none;
    color: var(--text-1);
    font-size: var(--font-size-0);
    font-weight: var(--font-weight-normal);
    text-align: start;
    text-decoration: none;
}

.popover-list li > :is(a, button, label):hover,
.menu-item:hover:not(:disabled),
.menu-item:focus-visible {
    background: var(--surface-3);
}

.menu-item:focus-visible {
    outline-offset: -2px;
    box-shadow: none;
}

/* The current choice gets a check mark, never a fill: menus stay neutral. Every item of such
   a list keeps the mark's column; the mark is a mask, as no font is sure to have U+2713. */
.popover-list:has(.menu-item:is([aria-pressed], [aria-current])) .menu-item::before {
    content: '';
    flex: 0 0 1em;
    block-size: 0.75rem;
}

.menu-item:is([aria-pressed='true'], [aria-current='true'], [aria-current='page']) {
    border-color: transparent;
    background: none;
    color: var(--text-1);
    font-weight: var(--font-weight-semibold);
}

.popover-list .menu-item:is([aria-pressed='true'], [aria-current='true'], [aria-current='page'])::before {
    background: currentcolor;
    mask: var(--glyph-success) center / contain no-repeat;
}

.menu-item:is([aria-pressed='true'], [aria-current='true'], [aria-current='page']):hover:not(:disabled) {
    background: var(--surface-3);
}

.menu-sep {
    block-size: 0;
    margin-block: var(--size-1);
    border-block-start: 1px solid var(--border);
    list-style: none;
}

/* ── Notices ────────────────────────────────────────────────────────────── */

/* Level-less is the neutral hint, caveat or stale note; [data-level] is for real status. */
.notice {
    display: flex;
    align-items: flex-start;
    gap: var(--size-2);
    padding: var(--size-2) var(--size-3);
    border: 1px solid var(--border);
    border-inline-start: 3px solid var(--text-2);
    border-radius: var(--radius-2);
    background: var(--surface-3);
    color: var(--text-1);
    font-size: var(--font-size-0);
}

.notice[data-level='error'] {
    border-inline-start-color: var(--danger);
    background: var(--danger-subtle);
}

.notice[data-level='warning'] {
    border-inline-start-color: var(--warning);
    background: var(--warning-subtle);
}

.notice[data-level='success'] {
    border-inline-start-color: var(--success);
    background: var(--success-subtle);
}

.notice[data-level='info'] {
    border-inline-start-color: var(--info);
    background: var(--info-subtle);
}

/* Results that belong to an earlier query. */
.notice[data-kind='stale'] {
    border-inline-start-style: dashed;
    color: var(--text-2);
}

/* On its way out: the toast keeps its box while it fades, so the ones below it do not
   jump up a row before the animation finishes. */
.notice.is-dismissing {
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-out);
}

/* A quoted nfdump command wraps anywhere, or a phone would cut it off. */
.notice code {
    overflow-wrap: anywhere;
}

/* A notice that can be closed keeps room for the button at its end. */
.notice.dismissible {
    position: relative;
    padding-inline-end: var(--size-6);
}

.notice.dismissible > button[data-variant='close'] {
    position: absolute;
    inset-block-start: var(--size-1);
    inset-inline-end: var(--size-1);
}

/* Dialog interior, matching the header/body/footer above. */
.dialog-content {
    display: flex;
    flex-direction: column;
    max-block-size: inherit;
}

.dialog-title {
    font-size: var(--font-size-2);
    font-weight: var(--font-weight-semibold);
}

/* Said by a chart that has nothing to draw yet. */
.chart-placeholder {
    padding-block: var(--size-7);
    color: var(--text-2);
    text-align: center;
}

/* ── Badge ──────────────────────────────────────────────────────────────── */

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--size-1);
    padding: 0.15em 0.55em;
    border: 1px solid transparent;
    border-radius: var(--radius-round);
    background: var(--surface-4);
    color: var(--text-1);
    font-size: var(--font-size-00);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-tight);
    white-space: nowrap;
}

.badge[data-level='error'] {
    background: var(--danger-subtle);
    color: var(--danger-emphasis);
}

.badge[data-level='warning'] {
    background: var(--warning-subtle);
    color: var(--warning-emphasis);
}

.badge[data-level='success'] {
    background: var(--success-subtle);
    color: var(--success-emphasis);
}

.badge[data-level='info'] {
    background: var(--info-subtle);
    color: var(--info-emphasis);
}

/* A figure from the precomputed per-interval top N rather than an exact query. */
.badge[data-kind='approx'] {
    border: 1px dashed var(--border-strong);
    background: none;
    color: var(--text-2);
}

/* ── Status glyphs ──────────────────────────────────────────────────────── */

/* A status never rests on colour alone: each level has its own shape, drawn as a mask
   unless the markup brings its own <svg>. */
:root {
    --glyph-success: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M.6 6.4 2.3 4.7l2.4 2.4L9.7 2.1l1.7 1.7-6.7 6.7z'/%3E%3C/svg%3E");
    --glyph-warning: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath fill-rule='evenodd' d='M6 .6 11.8 11H.2zM5.2 4.4h1.6v3.4H5.2zm0 4.4h1.6v1.4H5.2z'/%3E%3C/svg%3E");
    --glyph-error: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2.3.6 6 4.3 9.7.6l1.7 1.7L7.7 6l3.7 3.7-1.7 1.7L6 7.7l-3.7 3.7-1.7-1.7L4.3 6 .6 2.3z'/%3E%3C/svg%3E");
    --glyph-info: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath fill-rule='evenodd' d='M6 .5a5.5 5.5 0 1 1 0 11 5.5 5.5 0 0 1 0-11M5.2 5h1.6v4.5H5.2zm0-2.5h1.6V4H5.2z'/%3E%3C/svg%3E");
    --glyph-neutral: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath fill-rule='evenodd' d='M6 .8a5.2 5.2 0 1 1 0 10.4A5.2 5.2 0 0 1 6 .8m0 2a3.2 3.2 0 1 0 0 6.4 3.2 3.2 0 0 0 0-6.4'/%3E%3C/svg%3E");
}

.status-dot,
.nav-dot {
    --glyph: var(--glyph-neutral);
    display: inline-flex;
    flex-shrink: 0;
    inline-size: 0.75rem;
    block-size: 0.75rem;
    color: var(--text-2);
    vertical-align: -0.05em;
}

.status-dot::before,
.nav-dot::before {
    content: '';
    flex: 1;
    background: currentcolor;
    mask: var(--glyph) center / contain no-repeat;
}

.status-dot:has(> svg)::before,
.nav-dot:has(> svg)::before {
    content: none;
}

.status-dot > svg,
.nav-dot > svg {
    inline-size: 100%;
    block-size: 100%;
    fill: currentcolor;
}

/* Text that states a status in words, coloured to match its glyph. */
.status-text {
    color: var(--text-2);
}

/* ── Chip ───────────────────────────────────────────────────────────────── */

/* Neutral for routine activity, levelled only when something needs attention.
   [data-state=running] makes the dot pulse. */
.chip {
    display: inline-flex;
    align-items: center;
    gap: var(--size-2);
    padding: var(--size-1) var(--size-3);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-round);
    background: var(--surface-2);
    color: var(--text-1);
    font-size: var(--font-size-00);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-tight);
    text-decoration: none;
    white-space: nowrap;
}

a.chip:hover,
button.chip:hover:not(:disabled) {
    background: var(--surface-3);
}

.chip-dot {
    --glyph: var(--glyph-neutral);
    inline-size: 0.5rem;
    block-size: 0.5rem;
    flex-shrink: 0;
    border-radius: 50%;
    background: var(--text-2);
}

.chip[data-level] .chip-dot,
.chip-dot[data-level] {
    inline-size: 0.75rem;
    block-size: 0.75rem;
    border-radius: 0;
    background: currentcolor;
    mask: var(--glyph) center / contain no-repeat;
}

.chip[data-state='running'] .chip-dot {
    animation: glyph-pulse 1.2s ease-in-out infinite;
}

:is(.status-dot, .nav-dot, .chip-dot)[data-level='success'],
.chip[data-level='success'] .chip-dot {
    --glyph: var(--glyph-success);
    color: var(--success);
}

:is(.status-dot, .nav-dot, .chip-dot)[data-level='warning'],
.chip[data-level='warning'] .chip-dot {
    --glyph: var(--glyph-warning);
    color: var(--warning);
}

:is(.status-dot, .nav-dot, .chip-dot)[data-level='error'],
.chip[data-level='error'] .chip-dot {
    --glyph: var(--glyph-error);
    color: var(--danger);
}

:is(.status-dot, .nav-dot, .chip-dot)[data-level='info'],
.chip[data-level='info'] .chip-dot {
    --glyph: var(--glyph-info);
    color: var(--info);
}

.chip[data-level='warning'] {
    border-color: var(--warning);
    background: var(--warning-subtle);
    color: var(--warning-emphasis);
}

.chip[data-level='error'] {
    border-color: var(--danger);
    background: var(--danger-subtle);
    color: var(--danger-emphasis);
}

.chip[data-level='success'] {
    border-color: var(--success);
    background: var(--success-subtle);
    color: var(--success-emphasis);
}

@keyframes glyph-pulse {
    50% {
        opacity: 0.35;
    }
}

/* ── Rank chip and series swatch ────────────────────────────────────────── */

/* Neutral unless its row is a charted series; then a solid colour tab at its start, never
   a tint, since the printed key and the legend carry the identity. */
.rank {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-inline-size: 1.75em;
    block-size: 1.75em;
    padding-inline: 0.4em;
    border-radius: var(--radius-1);
    background: var(--surface-4);
    color: var(--text-1);
    font-size: var(--font-size-00);
    font-variant-numeric: tabular-nums;
    font-weight: var(--font-weight-semibold);
    line-height: 1;
}

.rank[data-series] {
    padding-inline-start: calc(0.4em + 0.375rem);
    box-shadow: inset 0.375rem 0 0 var(--series-color);
}

.rank[data-series]:dir(rtl) {
    box-shadow: inset -0.375rem 0 0 var(--series-color);
}

/* A square for areas and bars; with [data-pattern] a short line in that pattern. */
.series-swatch {
    display: inline-block;
    flex-shrink: 0;
    inline-size: 0.75rem;
    block-size: 0.75rem;
    border-radius: 2px;
    background: var(--series-color, currentcolor);
    vertical-align: -0.05em;
}

.series-swatch[data-pattern] {
    inline-size: 1.25rem;
    block-size: 0;
    border-block-start: 3px solid var(--series-color, currentcolor);
    border-radius: 0;
    background: none;
    vertical-align: middle;
}

.series-swatch[data-pattern='dashed'] {
    border-block-start-style: dashed;
}

.series-swatch[data-pattern='dotted'] {
    border-block-start-style: dotted;
}

/* ── KPI ────────────────────────────────────────────────────────────────── */

.kpi-strip {
    --grid-min: 12rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(var(--grid-min), 1fr));
    gap: var(--grid-gap, var(--size-3));
}

.kpi {
    display: flex;
    flex-direction: column;
    gap: var(--size-1);
    min-inline-size: 0;
    padding: var(--size-3) var(--size-4);
    border: 1px solid var(--border);
    border-radius: var(--radius-3);
    background: var(--surface-2);
}

.kpi-label {
    color: var(--text-2);
    font-size: var(--font-size-00);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.kpi-value {
    overflow: hidden;
    font-size: var(--font-size-4);
    font-variant-numeric: tabular-nums;
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* An address has to be read whole: smaller, and an IPv6 one may take a second line. */
.kpi-value[data-kind='address'] {
    display: -webkit-box;
    font-size: var(--font-size-2);
    white-space: normal;
    overflow-wrap: anywhere;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    line-clamp: 2;
}

.kpi-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--size-1) var(--size-2);
    color: var(--text-2);
    font-size: var(--font-size-0);
}

/* ── Bar list and usage bar ─────────────────────────────────────────────── */

/* <ol class="bar-list"> of <li class="bar-row" style="--share: 42%"> with a label, a value
   and a .bar; subgrid keeps every row's bar starting at the same place. */
.bar-list {
    display: grid;
    grid-template-columns: minmax(3rem, max-content) minmax(3rem, 1fr) max-content;
    gap: var(--size-2) var(--size-3);
    align-items: center;
    margin: 0;
    padding: 0;
    list-style: none;
    font-size: var(--font-size-0);
}

.bar-row {
    display: grid;
    grid-column: 1 / -1;
    grid-template-columns: subgrid;
    align-items: center;
}

.bar-label {
    grid-area: 1 / 1;
    min-inline-size: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.bar-value {
    grid-area: 1 / 3;
    font-variant-numeric: tabular-nums;
    text-align: end;
}

.bar {
    position: relative;
    overflow: hidden;
    block-size: 0.5rem;
    border-radius: var(--radius-round);
    background: var(--surface-4);
}

.bar::before {
    content: '';
    position: absolute;
    inset-block: 0;
    inset-inline-start: 0;
    inline-size: var(--share, 0%);
    border-radius: inherit;
    background: var(--bar-color, var(--text-2));
}

.bar[data-series] {
    --bar-color: var(--series-color);
}

.bar-row > .bar {
    grid-area: 1 / 2;
}

/* <div class="usage-bar" role="meter" aria-valuenow="42" style="--share: 42%">42%</div>:
   a filled track followed by its percentage, levelled at 85 % and 95 % by the markup. */
.usage-bar {
    display: grid;
    grid-template-columns: minmax(4rem, 1fr) auto;
    gap: var(--size-2);
    align-items: center;
    font-size: var(--font-size-0);
    font-variant-numeric: tabular-nums;
}

.usage-bar::before {
    content: '';
    block-size: 0.5rem;
    border-radius: var(--radius-round);
    background: linear-gradient(to right, var(--usage-color, var(--text-2)) var(--share, 0%), var(--surface-4) 0);
}

.usage-bar:dir(rtl)::before {
    background: linear-gradient(to left, var(--usage-color, var(--text-2)) var(--share, 0%), var(--surface-4) 0);
}

.usage-bar[data-level='warning'] {
    --usage-color: var(--warning);
}

.usage-bar[data-level='error'] {
    --usage-color: var(--danger);
}

/* A ranked list: rank chip first, then the key, the figures and a share bar. */
table.ranking :is(th, td):first-child {
    inline-size: 1%;
    white-space: nowrap;
}

table.ranking td[data-kind='share'] {
    min-inline-size: 10rem;
    white-space: nowrap;
}

table.ranking td[data-kind='share'] > .bar {
    display: inline-block;
    inline-size: 6rem;
    margin-inline-end: var(--size-2);
    vertical-align: middle;
}

/* ── Empty, loading, skeleton ───────────────────────────────────────────── */

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--size-2);
    padding: var(--size-7) var(--size-4);
    color: var(--text-2);
    text-align: center;
}

.empty-state > svg {
    inline-size: 2rem;
    block-size: 2rem;
}

/* Inside a card with its own h2 title the heading is an h3. */
.empty-state :is(h2, h3) {
    color: var(--text-1);
    font-size: var(--font-size-2);
}

.empty-state p {
    max-inline-size: 42ch;
    font-size: var(--font-size-0);
}

.page-skeleton {
    display: flex;
    flex-direction: column;
    gap: var(--size-3);
}

.page-skeleton > * {
    min-block-size: 4rem;
    border-radius: var(--radius-3);
    background: var(--surface-3);
    animation: skeleton-pulse 1.8s ease-in-out infinite;
}

@keyframes skeleton-pulse {
    50% {
        opacity: 0.55;
    }
}

/* A panel whose content is being replaced: dimmed, with a moving line along its top. */
:is(.card-body, [role='tabpanel'])[aria-busy='true'] {
    position: relative;
}

:is(.card-body, [role='tabpanel'])[aria-busy='true'] > * {
    opacity: 0.5;
    transition: opacity var(--duration-normal) var(--ease-out);
}

:is(.card-body, [role='tabpanel'])[aria-busy='true']::before {
    content: '';
    position: absolute;
    z-index: 1;
    inset-block-start: 0;
    inset-inline: 0;
    block-size: 2px;
    background: linear-gradient(to right, transparent 0 35%, var(--text-2) 35% 65%, transparent 65%) 0 0 / 300% 100% no-repeat;
    animation: busy-sweep 1.4s linear infinite;
}

@keyframes busy-sweep {
    from {
        background-position: 100% 0;
    }

    to {
        background-position: 0 0;
    }
}

/* ── Progress and spinners ──────────────────────────────────────────────── */

progress {
    inline-size: 100%;
    block-size: var(--size-2);
    appearance: none;
    border: none;
    border-radius: var(--radius-round);
    overflow: hidden;
    background: var(--surface-4);
}

progress::-webkit-progress-bar {
    background: var(--surface-4);
}

progress::-webkit-progress-value {
    background: var(--accent);
    transition: inline-size var(--duration-normal) var(--ease-out);
}

progress::-moz-progress-bar {
    background: var(--accent);
}

/* An indeterminate progress bar: a stripe pattern that moves. */
progress[data-indeterminate]::-webkit-progress-value {
    background-image: repeating-linear-gradient(
        45deg,
        color-mix(in oklab, var(--on-accent) 25%, transparent) 0 0.5rem,
        transparent 0.5rem 1rem
    );
    animation: progress-stripes 1s linear infinite;
}

@keyframes progress-stripes {
    from {
        background-position-x: 0;
    }

    to {
        background-position-x: 1.42rem;
    }
}

.spinner {
    display: inline-block;
    inline-size: 1em;
    block-size: 1em;
    border: 2px solid currentcolor;
    border-block-start-color: transparent;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

@keyframes spin {
    to {
        rotate: 1turn;
    }
}

@media (prefers-reduced-motion: reduce) {
    .spinner {
        animation-duration: 2s;
    }

    .page-skeleton > *,
    .chip[data-state='running'] .chip-dot {
        animation: none;
    }

    :is(.card-body, [role='tabpanel'])[aria-busy='true']::before {
        animation: none;
        background: var(--text-2);
        opacity: 0.5;
    }
}

/* ── Forced colors ──────────────────────────────────────────────────────── */

/* The system palette is the contract here, so system colour keywords are allowed. */
@media (forced-colors: active) {
    [aria-pressed='true'],
    [aria-current]:not([aria-current='false']),
    [aria-selected='true'],
    .segmented :checked + label {
        outline: 2px solid Highlight;
        outline-offset: -2px;
    }

    /* Focus on a selected control: the state ring stays inside, the focus ring adds one outside. */
    :is([aria-pressed='true'], [aria-current]:not([aria-current='false']), [aria-selected='true']):focus-visible,
    .segmented :checked:focus-visible + label {
        outline: 6px double Highlight;
        outline-offset: -2px;
    }

    /* A transparent border is forced visible; paint the unselected tabs' bars as Canvas. */
    .tabs [role='tab']:not([aria-selected='true']) {
        border-color: Canvas;
    }

    /* The menu's check mark is a mask on currentcolor, which forced colours would repaint. */
    .menu-item::before {
        forced-color-adjust: none;
    }

    .series-swatch,
    .rank[data-series],
    .status-dot,
    .nav-dot,
    .chip-dot,
    .bar,
    .usage-bar,
    .switch input {
        forced-color-adjust: none;
    }

    .switch input {
        border-color: CanvasText;
        background: Canvas;
    }

    .switch input::after {
        background: CanvasText;
    }

    .switch input:checked {
        border-color: Highlight;
        background: Highlight;
    }

    .switch input:checked::after {
        background: HighlightText;
    }

    /* forced-color-adjust: none keeps the theme's focus colour, which can match Canvas. */
    .switch input:focus-visible {
        outline-color: Highlight;
        box-shadow: none;
    }
}

/* ── Status text ────────────────────────────────────────────────────────── */

/* Status colours last: they say what a piece of text means, so they win against a component
   rule of the same weight that only says where it sits. */
.status-text[data-level='success'] {
    color: var(--success-emphasis);
}

.status-text[data-level='warning'] {
    color: var(--warning-emphasis);
}

.status-text[data-level='error'] {
    color: var(--danger-emphasis);
}

.status-text[data-level='info'] {
    color: var(--info-emphasis);
}