/* ============================================================================
   Lintje — colour themes

   Document level only: linked by the page next to `tokens.css`, never imported into TypeScript,
   so the two properties are declared once on the document and inherit into every shadow root.
   `tokens.css` must not declare them: a re-declaration on an element host would beat the
   inherited value.

   A theme sets exactly `--primary` and `--accent`. The dark tints are derived in `tokens.css`
   at a fixed lightness, sized for the themes here.

   To add a theme: one block here and its row in `SPECIFICATION` in `colour-scheme.test.ts`,
   which checks that its tints clear their floors.
   ========================================================================= */

/* The default theme: a page that sets no `data-theme` still has a primary. */
:root {
  --primary: #01689B;
  --accent: #E17000;
}

/* Rijksoverheid — donkerblauw. Not lintblauw (`#154273`): the ribbon's own colour would vanish. */
[data-theme='rijksoverheid'] {
  --primary: #01689B;
  --accent: #E17000;
}

/* Koninklijke Marechaussee — Nassau blue. */
[data-theme='marechaussee'] {
  --primary: #0E3B6E;
  --accent: #E17000;
}

/* Koninklijke Landmacht — dark green. */
[data-theme='landmacht'] {
  --primary: #00423C;
  --accent: #E17000;
}

/* Koninklijke Marine — mid blue. */
[data-theme='marine'] {
  --primary: #0E61AA;
  --accent: #E17000;
}

/* Koninklijke Luchtmacht — deep blue. */
[data-theme='luchtmacht'] {
  --primary: #005187;
  --accent: #E17000;
}

/* Defensie — orange primary, so the accent is the blue instead. Lighter than the line tint's
   lightness, so its line is the primary itself. */
[data-theme='defensie'] {
  --primary: #E17000;
  --accent: #007BC7;
}

/* ============================================================================
   Lintje — design tokens

   Colour is in three groups: themable UI colour (a theme sets only `--primary` and `--accent`, in
   `themes.css`), fixed data colour (`--data-*`, identical in every
   mode and theme except the two grays) and fixed status colour (`--status-*`).

   Three layers, one direction: component -> semantic (`--color-*`) -> primitives. Only the
   primitive blocks may hold a colour literal. To change a colour in one mode, re-point the
   layer-2 name inside `[data-mode='dark']`.

   `color-mix(in srgb, …)` and the relative `oklch(from …)` need Chrome/Edge 122+, Firefox 128+
   or Safari 18+;
   `colour-scheme.test.ts` repeats the arithmetic. The `@font-face` rules live in `fonts.css`:
   they cannot work inside a shadow root.
   ========================================================================= */

/* ============================================================================
   Layer 1 — primitives (the only literals)
   ========================================================================= */
:root {
  /* --- Neutral (light). The one mode-dependent primitive family ----------
     Neutral-5 is the cool-grey step 600, not 500, because it carries muted TEXT:
     #64748B is 4.34:1 on neutral-2, #475569 is 6.92:1. */
  --neutral-0: #FFFFFF;
  --neutral-1: #F8FAFC;
  --neutral-2: #F1F5F9;
  --neutral-3: #E2E8F0;
  --neutral-4: #94A3B8;
  --neutral-5: #475569;
  --neutral-6: #0F172A;

  /* --- Fixed ink ---------------------------------------------------------
     The same in both modes because it sits on a fill, not on the page. */
  --ink-white: #FFFFFF;
  --ink-black: #0F172A;
  --alpha-white-82: rgba(255, 255, 255, 0.82);
  --alpha-white-45: rgba(255, 255, 255, 0.45);

  /* --- Focus -------------------------------------------------------------
     Its own constant: it must not move with the accent or the attention status. The orange is
     3.22:1 on white and falls short on the light grey surfaces and the status tints; the deep
     orange is the smallest share of black that reaches 3:1 on all of them. */
  --focus-orange: #E17000;
  --focus-orange-deep: color-mix(in srgb, var(--focus-orange), black 9%);

  /* --- The ribbon --------------------------------------------------------
     Lintblauw, and the Rijkshuisstijl's own lighter tint for the ribbon in the logo in dark. */
  --ribbon-blue: #154273;
  --ribbon-blue-dark: #004A8D;

  /* --- Data (fixed Rijkshuisstijl, identical in light, dark and every theme)
     The two grays follow the mode: as fixed literals the comparison line landed at 2.69:1
     on the dark surface. Light #475569 / #94A3B8, dark #B0B0B0 / #808080. The variables
     stand in the order of `tokens/colors.ts`, the one list of their names. */
  --data-sky-blue: #007BC7;
  --data-dark-yellow: #FFB612;
  --data-red: #D52B1E;
  --data-green: #39870C;
  --data-mint-green: #76D2B6;
  --data-violet: #A90061;
  --data-orange: #E17000;
  --data-pink: #F092CD;
  --data-dark-green: #275937;
  --data-purple: #42145F;
  --data-ruby-red: #CA005D;
  --data-yellow: #F9E11E;
  --data-dark-brown: #673328;
  --data-brown: #94710A;
  --data-dark-blue: #01689B;
  --data-light-blue: #8FCAE7;
  --data-moss-green: #777B00;
  /* Sky blue's ladder is written out: the map's areas draw in from the land to these classes,
     and Chromium interpolates a `color-mix()` target wrongly (the land's RGB numbers taken as
     oklab), so the areas flash yellow. The values are its mix with white; the test checks. */
  --data-sky-blue-75: #409CD5;
  --data-sky-blue-60: #66B0DD;
  --data-sky-blue-45: #8CC4E6;
  --data-sky-blue-30: #B2D7EE;
  --data-sky-blue-15: #D9EBF7;
  --data-comparison: var(--neutral-5);
  --data-other: var(--neutral-4);
  /* Yellow as TEXT fails contrast on white: light writes a wait time in this dark gold. */
  --data-dark-yellow-text: #B07A00;
  /* A light colour as a line or a mark reaches 3:1 by an edge: the colour halfway to black,
     written out so it never follows a mix. Dark yellow takes its text colour. */
  --data-mint-green-edge: #3B695B;
  --data-orange-edge: #703800;
  --data-pink-edge: #784966;
  --data-yellow-edge: #7C700F;
  --data-light-blue-edge: #476573;
  /* Grid and emphasis follow the surface, like the two grays. */
  --data-grid: var(--neutral-3);
  --data-emphasis: var(--neutral-6);

  /* --- Status (fixed) ---------------------------------------------------- */
  --status-success: #39870C;
  --status-warning: #FFB612;
  --status-attention: #E17000;
  --status-error: #D52B1E;
  --status-info: #007BC7;

  /* Black at the alphas the shadows and overlays use; the digits are the alpha in percent. */
  --alpha-black-08: rgba(0, 0, 0, 0.08);
  --alpha-black-14: rgba(0, 0, 0, 0.14);
  --alpha-black-16: rgba(0, 0, 0, 0.16);
  --alpha-black-18: rgba(0, 0, 0, 0.18);
  --alpha-black-22: rgba(0, 0, 0, 0.22);
  --alpha-black-40: rgba(0, 0, 0, 0.4);
  --alpha-black-55: rgba(0, 0, 0, 0.55);
  --alpha-black-60: rgba(0, 0, 0, 0.6);
}

/* ============================================================================
   Layer 1 — derivations

   Mixes of the primitives and of the theme's two properties. The tint ladder is 75 / 60 / 45
   / 30 / 15 % of the base over white; every data colour carries the complete ladder.
   ========================================================================= */
:root {
  /* Darker than the primary in light: a lighter fill under white text lost contrast (2.80:1 on
     orange). The dark block re-declares it lighter. */
  --primary-hover: color-mix(in srgb, var(--primary), black 30%);
  --primary-line: color-mix(in srgb, var(--primary), white 22%);
  /* The dark tints lift only the perceived lightness, so they keep the primary's colour; a mix
     with white greys it. Each lightness is the smallest hundredth that clears its floor in every
     theme: 3:1 on #282828 for a line, 4.5:1 on #333333 (neutral-2), the lightest neutral
     surface a word stands on, for text. A primary that is lighter already keeps its own. */
  --primary-tint: oklch(from var(--primary) max(l, 0.55) c h);
  --primary-tint-text: oklch(from var(--primary) max(l, 0.71) c h);
  /* A wash behind a word or under a band, never a colour that reads by itself. Fixed in
     perceived lightness, so it is equally light in every theme and keeps the primary's hue; an
     sRGB mix with white greys a dark primary. The chroma cap keeps every theme inside sRGB. */
  --primary-wash: oklch(from var(--primary) 0.955 min(c, 0.02) h);

  --data-dark-yellow-75: color-mix(in srgb, var(--data-dark-yellow) 75%, white);
  --data-dark-yellow-60: color-mix(in srgb, var(--data-dark-yellow) 60%, white);
  --data-dark-yellow-45: color-mix(in srgb, var(--data-dark-yellow) 45%, white);
  --data-dark-yellow-30: color-mix(in srgb, var(--data-dark-yellow) 30%, white);
  --data-dark-yellow-15: color-mix(in srgb, var(--data-dark-yellow) 15%, white);

  --data-red-75: color-mix(in srgb, var(--data-red) 75%, white);
  --data-red-60: color-mix(in srgb, var(--data-red) 60%, white);
  --data-red-45: color-mix(in srgb, var(--data-red) 45%, white);
  --data-red-30: color-mix(in srgb, var(--data-red) 30%, white);
  --data-red-15: color-mix(in srgb, var(--data-red) 15%, white);

  --data-green-75: color-mix(in srgb, var(--data-green) 75%, white);
  --data-green-60: color-mix(in srgb, var(--data-green) 60%, white);
  --data-green-45: color-mix(in srgb, var(--data-green) 45%, white);
  --data-green-30: color-mix(in srgb, var(--data-green) 30%, white);
  --data-green-15: color-mix(in srgb, var(--data-green) 15%, white);

  --data-mint-green-75: color-mix(in srgb, var(--data-mint-green) 75%, white);
  --data-mint-green-60: color-mix(in srgb, var(--data-mint-green) 60%, white);
  --data-mint-green-45: color-mix(in srgb, var(--data-mint-green) 45%, white);
  --data-mint-green-30: color-mix(in srgb, var(--data-mint-green) 30%, white);
  --data-mint-green-15: color-mix(in srgb, var(--data-mint-green) 15%, white);

  --data-violet-75: color-mix(in srgb, var(--data-violet) 75%, white);
  --data-violet-60: color-mix(in srgb, var(--data-violet) 60%, white);
  --data-violet-45: color-mix(in srgb, var(--data-violet) 45%, white);
  --data-violet-30: color-mix(in srgb, var(--data-violet) 30%, white);
  --data-violet-15: color-mix(in srgb, var(--data-violet) 15%, white);

  --data-orange-75: color-mix(in srgb, var(--data-orange) 75%, white);
  --data-orange-60: color-mix(in srgb, var(--data-orange) 60%, white);
  --data-orange-45: color-mix(in srgb, var(--data-orange) 45%, white);
  --data-orange-30: color-mix(in srgb, var(--data-orange) 30%, white);
  --data-orange-15: color-mix(in srgb, var(--data-orange) 15%, white);

  --data-pink-75: color-mix(in srgb, var(--data-pink) 75%, white);
  --data-pink-60: color-mix(in srgb, var(--data-pink) 60%, white);
  --data-pink-45: color-mix(in srgb, var(--data-pink) 45%, white);
  --data-pink-30: color-mix(in srgb, var(--data-pink) 30%, white);
  --data-pink-15: color-mix(in srgb, var(--data-pink) 15%, white);

  --data-dark-green-75: color-mix(in srgb, var(--data-dark-green) 75%, white);
  --data-dark-green-60: color-mix(in srgb, var(--data-dark-green) 60%, white);
  --data-dark-green-45: color-mix(in srgb, var(--data-dark-green) 45%, white);
  --data-dark-green-30: color-mix(in srgb, var(--data-dark-green) 30%, white);
  --data-dark-green-15: color-mix(in srgb, var(--data-dark-green) 15%, white);

  --data-purple-75: color-mix(in srgb, var(--data-purple) 75%, white);
  --data-purple-60: color-mix(in srgb, var(--data-purple) 60%, white);
  --data-purple-45: color-mix(in srgb, var(--data-purple) 45%, white);
  --data-purple-30: color-mix(in srgb, var(--data-purple) 30%, white);
  --data-purple-15: color-mix(in srgb, var(--data-purple) 15%, white);

  --data-ruby-red-75: color-mix(in srgb, var(--data-ruby-red) 75%, white);
  --data-ruby-red-60: color-mix(in srgb, var(--data-ruby-red) 60%, white);
  --data-ruby-red-45: color-mix(in srgb, var(--data-ruby-red) 45%, white);
  --data-ruby-red-30: color-mix(in srgb, var(--data-ruby-red) 30%, white);
  --data-ruby-red-15: color-mix(in srgb, var(--data-ruby-red) 15%, white);

  --data-yellow-75: color-mix(in srgb, var(--data-yellow) 75%, white);
  --data-yellow-60: color-mix(in srgb, var(--data-yellow) 60%, white);
  --data-yellow-45: color-mix(in srgb, var(--data-yellow) 45%, white);
  --data-yellow-30: color-mix(in srgb, var(--data-yellow) 30%, white);
  --data-yellow-15: color-mix(in srgb, var(--data-yellow) 15%, white);

  --data-dark-brown-75: color-mix(in srgb, var(--data-dark-brown) 75%, white);
  --data-dark-brown-60: color-mix(in srgb, var(--data-dark-brown) 60%, white);
  --data-dark-brown-45: color-mix(in srgb, var(--data-dark-brown) 45%, white);
  --data-dark-brown-30: color-mix(in srgb, var(--data-dark-brown) 30%, white);
  --data-dark-brown-15: color-mix(in srgb, var(--data-dark-brown) 15%, white);

  --data-brown-75: color-mix(in srgb, var(--data-brown) 75%, white);
  --data-brown-60: color-mix(in srgb, var(--data-brown) 60%, white);
  --data-brown-45: color-mix(in srgb, var(--data-brown) 45%, white);
  --data-brown-30: color-mix(in srgb, var(--data-brown) 30%, white);
  --data-brown-15: color-mix(in srgb, var(--data-brown) 15%, white);

  --data-dark-blue-75: color-mix(in srgb, var(--data-dark-blue) 75%, white);
  --data-dark-blue-60: color-mix(in srgb, var(--data-dark-blue) 60%, white);
  --data-dark-blue-45: color-mix(in srgb, var(--data-dark-blue) 45%, white);
  --data-dark-blue-30: color-mix(in srgb, var(--data-dark-blue) 30%, white);
  --data-dark-blue-15: color-mix(in srgb, var(--data-dark-blue) 15%, white);

  --data-light-blue-75: color-mix(in srgb, var(--data-light-blue) 75%, white);
  --data-light-blue-60: color-mix(in srgb, var(--data-light-blue) 60%, white);
  --data-light-blue-45: color-mix(in srgb, var(--data-light-blue) 45%, white);
  --data-light-blue-30: color-mix(in srgb, var(--data-light-blue) 30%, white);
  --data-light-blue-15: color-mix(in srgb, var(--data-light-blue) 15%, white);

  --data-moss-green-75: color-mix(in srgb, var(--data-moss-green) 75%, white);
  --data-moss-green-60: color-mix(in srgb, var(--data-moss-green) 60%, white);
  --data-moss-green-45: color-mix(in srgb, var(--data-moss-green) 45%, white);
  --data-moss-green-30: color-mix(in srgb, var(--data-moss-green) 30%, white);
  --data-moss-green-15: color-mix(in srgb, var(--data-moss-green) 15%, white);

  /* 15 % of the status colour over the surface, so one declaration covers both modes. */
  --status-success-bg: color-mix(in srgb, var(--status-success) 15%, var(--neutral-0));
  --status-warning-bg: color-mix(in srgb, var(--status-warning) 15%, var(--neutral-0));
  --status-attention-bg: color-mix(in srgb, var(--status-attention) 15%, var(--neutral-0));
  --status-error-bg: color-mix(in srgb, var(--status-error) 15%, var(--neutral-0));
  --status-info-bg: color-mix(in srgb, var(--status-info) 15%, var(--neutral-0));
}

/* ============================================================================
   Layers 2 and 3 — semantic and component tokens (light)

   No colour literal below this line.
   ========================================================================= */
:root {
  /* --- Typography -------------------------------------------------------- */
  --font-ui: 'RijksSans', 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Source Code Pro', ui-monospace, SFMono-Regular, Menlo, monospace;

  --text-dashboard: 700 1.25rem/1.2 var(--font-ui);
  --text-h1: 700 1.75rem/1.2 var(--font-ui);
  --text-h1-mobile: 700 1.5rem/1.15 var(--font-ui);
  --text-h1-display: 700 2.5rem/1.1 var(--font-ui);
  --text-h2: 700 1.25rem/1.25 var(--font-ui);
  --text-tile-title: 700 1rem/1.3 var(--font-ui);
  --text-kpi: 700 2rem/1.1 var(--font-ui);
  --text-kpi-mobile: 700 1.5rem/1.1 var(--font-ui);
  --text-kpi-secondary: 700 1.25rem/1.1 var(--font-ui);
  --text-body: 400 1rem/1.5 var(--font-ui);
  /* Larger than body, read at a glance: the text being translated, a hero's introduction, a
     transcript in its large size. */
  --text-translation: 400 1.25rem/1.5 var(--font-ui);
  --text-ui: 400 1rem/1.4 var(--font-ui);
  /* Secondary text is one token: a hint, a sub-line, a meta line, a date. */
  --text-small: 400 0.875rem/1.45 var(--font-ui);
  /* Former names of the same token; they go with the next breaking release. */
  --text-meta: var(--text-small);
  --text-tile-sub: var(--text-small);
  --text-table: 400 1rem/1.4 var(--font-ui);
  --text-table-head: 700 0.875rem/1.3 var(--font-ui);
  --text-axis: 400 0.75rem/1.2 var(--font-ui);

  --label-size: 0.875rem;
  --label-weight: 700;
  --label-tracking: 0.08em;
  --kpi-tracking: -0.02em;

  /* --- Spacing (4 px scale) --------------------------------------------- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;

  /* --- Component sizes --------------------------------------------------- */
  --h-topbar: 3.5rem;
  --h-contextbar: 3rem;
  --h-mobile-header: 4.5rem;
  --h-control: 3rem;
  --h-button: 3rem;
  --h-button-compact: 2.5rem;
  --h-button-chrome: 2.5rem;
  --h-icon-button: 2.5rem;
  --h-chip: 2rem;
  --h-chip-field: 1.75rem;
  --h-nav-row: 3rem;
  --h-nav-head: 6.5rem;
  --h-table-row: 3rem;
  --h-touch: 3rem;
  /* The smallest pointer target. A box that draws smaller reaches it through a
     transparent hit area (`::after`, negative inset). */
  --h-target: 3rem;
  /* The WCAG AA floor: a link in a list of text links (one line of text, as on rijksoverheid.nl)
     and a finger's hit area on a split pane's strip. */
  --h-target-text: 1.5rem;
  /* The two dense exceptions to the target: a date picker day cell and a listbox option row. */
  --h-option: 2.5rem;
  /* The sparkline of a KPI: a line and its area under the figure, with no axes. */
  --h-sparkline: 2rem;

  --w-nav: 288px;
  --w-rail: 72px;
  --w-text: 760px;
  --w-message: 560px;
  /* A language choice in the translator's bar. */
  --w-translator-language: 18rem;
  /* The widest the page's content gets. A host sets `--lintje-content-width` to change it. */
  --w-content: 1360px;
  --nav-edge: 4px;
  /* The ribbon is the unit: 48 px, 40 on a phone. Both bars are in rem, so they grow with the
     reader's text size. */
  --w-ribbon: 3rem;
  --h-logobar: calc(2.5 * var(--w-ribbon));
  /* The top bar's height: what pins under the bar measures `--h-topbar`. */
  --h-navbar: var(--h-topbar);
  /* How far what follows the hero stands over its band's lower edge. */
  --hero-overlap: var(--space-10);
  /* The widest the picture beside the hero's text gets: four of the twelve columns at 1440. */
  --w-hero-aside: 400px;
  /* The narrowest a card gets in a card list before the list drops a column. */
  --w-card: 320px;
  /* The same for a horizontal card, whose picture takes a column of its own. */
  --w-card-wide: 480px;
  --w-card-media: 200px;
  --w-card-logo: 3.5rem;
  --w-card-logo-wide: 5rem;
  /* The narrowest thumbnail under a gallery's large picture. */
  --w-gallery-thumb: 120px;
  /* The narrowest column of links in a footer before the columns stand under each other. */
  --w-footer-column: 220px;

  --page-pad-y: 32px;
  --page-pad-x: 24px;
  /* What a full-width bar or the content adds to its side padding so what stands in it keeps to
     `--w-content`; the percentage is taken of the box the bar stands in. */
  --page-gutter: max(
    0px,
    calc((100% - var(--lintje-content-width, var(--w-content)) - 2 * var(--page-pad-x)) / 2)
  );
  --grid-gutter: 24px;
  --tile-pad-y: 20px;
  --tile-pad-x: 24px;
  --chart-h-main: 260px;
  --chart-h-small: 180px;
  --chart-h-expanded: 560px;

  /* Sticky context = top bar + summary bar. */
  --h-sticky: calc(var(--h-topbar) + var(--h-contextbar));

  --radius: 0px;
  --radius-round: 50%;

  --shadow-sticky: 0 2px 6px var(--alpha-black-08);
  --shadow-sticky-up: 0 -2px 6px var(--alpha-black-08);
  --shadow-popover: 0 4px 16px var(--alpha-black-14);
  --shadow-nav: 2px 0 8px var(--alpha-black-08);
  --shadow-chart-hover: 0 1px 4px var(--alpha-black-22);
  --shadow-scroll-start: inset 12px 0 10px -10px var(--alpha-black-18);
  --shadow-scroll-end: inset -12px 0 10px -10px var(--alpha-black-18);
  /* A group of cards in a graph: two edges stepped out behind the card, without blur. */
  --shadow-stack:
    4px 4px 0 -1px var(--color-bg-surface), 4px 4px 0 0 var(--color-border-default),
    8px 8px 0 -1px var(--color-bg-surface), 8px 8px 0 0 var(--color-border-default);

  --color-overlay-page: var(--alpha-black-60);
  --color-overlay-nav: var(--alpha-black-16);

  --focus-width: 3px;
  --focus-offset: 2px;

  /* --- Motion ------------------------------------------------------------ */
  /* `@kind other` marks these for design tooling as neither colors, sizes nor type; the library
     CSS ships unminified so the notes reach it. */
  --ease-in-motion: cubic-bezier(0.2, 0, 0, 1); /* @kind other */
  --ease-out-motion: cubic-bezier(0.4, 0, 1, 1); /* @kind other */
  /* A fade that runs both ways: straight, so out is in played backwards; a curve leaves a ghost. */
  --ease-fade: linear; /* @kind other */
  --dur-base: 200ms; /* @kind other */
  --dur-hover: 120ms; /* @kind other */
  --dur-popover: var(--dur-base); /* @kind other */
  --dur-submenu: 300ms; /* @kind other */
  --dur-toast: var(--dur-base); /* @kind other */
  --dur-scrim: var(--dur-base); /* @kind other */
  --dur-rail: var(--dur-base); /* @kind other */
  --dur-collapse: var(--dur-base); /* @kind other */
  --dur-modal: var(--dur-base); /* @kind other */
  --dur-sheet: var(--dur-base); /* @kind other */
  --dur-kpi: var(--dur-base); /* @kind other */
  --dur-badge: 300ms; /* @kind other */
  --dur-draw: 900ms; /* @kind other */
  --dur-data-label: 300ms; /* @kind other */
  --dur-layer: 400ms; /* @kind other */
  --dur-skeleton: 1200ms; /* @kind other */
  --dur-wave: 600ms; /* @kind other */
  /* A graph's nodes moving to their new place, after another layout or an opened branch. */
  --dur-graph: 320ms; /* @kind other */

  /* --- Semantic: surfaces ------------------------------------------------ */
  --color-bg-page: var(--neutral-1);
  --color-bg-surface: var(--neutral-0);
  --color-bg-subtle: var(--neutral-2);
  --color-bg-title: var(--neutral-1);
  /* Between steps 2 and 3: on the cool-grey ramp neutral-2 sits too close to the page to read
     as a band. Without the ramp's blue: on a band this wide it reads as a colour. */
  --color-bg-filter: oklch(from color-mix(in srgb, var(--neutral-2), var(--neutral-3)) l 0 h);
  --color-bg-selected: var(--neutral-2);
  --color-bg-inset: var(--neutral-2);

  /* --- Semantic: text ---------------------------------------------------- */
  --color-text-primary: var(--neutral-6);
  --color-text-secondary: var(--neutral-6);
  --color-text-muted: var(--neutral-5);
  --color-text-inverse: var(--neutral-0);
  --color-text-disabled: var(--neutral-4);
  /* A placeholder must stay readable: 4.5:1 on the surface in both modes. */
  --color-text-placeholder: var(--neutral-5);
  --color-text-on-fill: var(--ink-white);
  --color-text-on-light-fill: var(--ink-black);
  --color-qr-bg: var(--ink-white);
  --color-qr-fg: var(--ink-black);
  --color-media-bg: var(--ink-black);

  /* --- Semantic: borders ------------------------------------------------- */
  --color-border-default: var(--neutral-3);
  --color-border-strong: var(--neutral-3);
  --color-border-filter: oklch(from var(--neutral-3) l 0 h);
  --color-border-heavy: var(--neutral-4);
  /* The resting edge of a field box: 3:1 (WCAG 1.4.11) on the surface and the filter band. */
  --color-border-field: var(--neutral-5);
  /* The 2 px edge of a checkbox and a radio: 3:1 on the surface; dark re-points it. */
  --color-border-choice: var(--neutral-5);
  /* In dark a sheet is the same #282828 as the tile under it, so this line separates them. */
  --color-border-popover: var(--neutral-3);
  /* A DASHED outline (a suggestion, an uncertain term): neutral-5, because a dashed line has half
     the ink of a solid one and must still reach 3:1. */
  --color-border-suggestion: var(--neutral-5);

  /* --- Semantic: avatar -------------------------------------------------- */
  /* A person's circle: one neutral fill for everyone; a person is no variable. */
  --color-avatar-bg: var(--neutral-3);
  /* The initials and the icon on that fill: 14.5:1 in light, 8.9:1 in dark. */
  --color-avatar-text: var(--color-text-primary);
  /* The DASHED edge of the circle where nobody stands yet: neutral-5, as a dashed line has half the
     ink of a solid one and must still reach 3:1. */
  --color-avatar-empty-line: var(--neutral-5);

  /* --- Semantic: action -------------------------------------------------- */
  --color-action-primary: var(--primary);
  --color-action-primary-hover: var(--primary-hover);
  --color-action-primary-text: var(--ink-white);
  /* A primary fill in dark is a dark box on a dark page (WCAG 1.4.11): it gets a tint border. */
  --color-action-primary-border: var(--primary);
  --color-action-secondary-border: var(--primary);
  /* The destructive fill: the error red, white text on it (5.01:1). Hover is darker in light,
     lighter in dark. In dark the border is a tint, because #D52B1E is 2.94:1 on #282828. */
  --color-action-danger: var(--status-error);
  --color-action-danger-hover: color-mix(in srgb, var(--status-error), black 30%);
  --color-action-danger-border: var(--status-error);
  /* The word of the outlined danger button; dark re-points it (the red is 2.94:1 on #282828). */
  --color-action-danger-text: var(--status-error);
  --color-link: var(--primary);
  --color-link-hover: var(--primary-hover);
  /* A link on a status background: in dark no tint of the primary reaches 4.5:1 there, so it
     reads in the text colour. It is bold and underlined, so colour never carried it alone. */
  --color-link-on-status: var(--primary);

  /* The accent splits in three, because a fill, a line and a word have different floors:
     fill (the primary), line (non-text, 3:1: `--primary-tint` in dark) and text (4.5:1:
     `--primary-tint-text` in dark). A word in the line token fails: it is sized for 3:1. */
  --color-accent: var(--primary);
  --color-accent-line: var(--primary);
  --color-accent-text: var(--primary);

  --color-focus: var(--focus-orange-deep);

  /* --- Semantic: status -------------------------------------------------- */
  --color-attention: var(--status-attention);
  --color-success: var(--status-success);
  --color-warning: var(--status-warning);
  --color-error: var(--status-error);
  --color-info: var(--status-info);

  --color-warning-bg: var(--status-warning-bg);
  --color-attention-bg: var(--status-attention-bg);
  --color-error-bg: var(--status-error-bg);
  --color-info-bg: var(--status-info-bg);
  --color-success-bg: var(--status-success-bg);

  /* A status mark on its own tint: the status colour, nudged to 3:1 where it falls short. */
  --color-attention-line: color-mix(in srgb, var(--status-attention), black 10%);
  --color-error-line: var(--status-error);
  --color-info-line: var(--status-info);
  --color-success-line: var(--status-success);
  /* A status WORD at 4.5:1 on the surface and on `--color-bg-subtle`: the red itself, the green
     5 % darker (4.13:1 on neutral-2); dark lifts both. A glyph or an edge keeps the line token. */
  --color-error-text: var(--status-error);
  --color-success-text: color-mix(in srgb, var(--status-success), black 5%);

  /* --- Navigation (the theme fill; neutral in dark) ---------------------- */
  --color-nav-bg: var(--primary);
  --color-nav-text: var(--ink-white);
  --color-nav-text-sub: var(--alpha-white-82);
  --color-nav-hover: var(--primary-hover);
  --color-nav-active: var(--primary-hover);
  --color-nav-active-edge: var(--ink-white);
  --color-nav-active-text: var(--ink-white);
  --color-nav-line: var(--primary-line);
  --color-nav-disabled: var(--alpha-white-45);
  --color-nav-badge-bg: var(--status-error);
  --color-nav-badge-text: var(--ink-white);
  /* The avatar is white with black initials wherever it stands, in both modes. */
  --color-nav-avatar-bg: var(--ink-white);
  --color-nav-avatar-text: var(--ink-black);
  /* Orange fails on the theme fill (1.89:1 on #01689B, 1:1 on #E17000); white reaches 3:1 on
     all six primaries. Dark re-points it to the orange. */
  --color-focus-on-theme: var(--ink-white);
  /* The theme's ACCENT, not the attention status: on `defensie` the menu is `#E17000` and the
     status colour made the band disappear. `--accent` is document level only. */
  --color-nav-environment-bg: var(--accent);
  /* White is 3.22:1 on the orange accent, ink 3.96:1 on Defensie's blue: above lightness 0.6 the
     word is ink (`--ink-black`, written as its oklch), below it white. */
  --color-nav-environment-text: oklch(from var(--accent) clamp(0.208, (0.6 - l) * 1000, 1) clamp(0, (l - 0.6) * 1000, 0.04) 265.8);
  /* The page's surface in both modes. The navigation bar under it is the menu turned a quarter,
     on `--color-nav-*`. */
  --color-logobar-bg: var(--color-bg-surface);
  --color-logobar-text: var(--color-text-primary);
  /* The ribbon in the emblem; only the logo re-points it in dark, never lintblauw elsewhere. */
  --color-logo-ribbon: var(--ribbon-blue);
  /* The name beside it, in lintblauw as rijksoverheid.nl writes it. */
  --color-logo-name: var(--ribbon-blue);
  /* What marks an entry in that bar. They name the primitives, never `--color-nav-*`: the bar
     points those at these, and the two would refer to each other. */
  --color-navbar-hover: var(--primary-hover);
  --color-navbar-active: var(--primary-hover);
  --color-navbar-active-edge: var(--ink-white);
  --color-navbar-open-text: var(--color-accent-text);
  /* The start page's band is the primary's wash, so it never reads as the menu. */
  --color-hero-bg: var(--primary-wash);
  --color-hero-text: var(--color-text-primary);
  /* The site's foot stands on the menu's own fill, as on rijksoverheid.nl; in dark it follows the menu. */
  --color-footer-bg: var(--color-nav-bg);
  --color-footer-text: var(--color-nav-text);
  --color-footer-line: var(--color-nav-line);
  --color-footer-focus: var(--color-focus-on-theme);

  /* The box behind a recognised term: the primary's wash; dark re-points it. */
  --color-term-bg: var(--primary-wash);
  /* The chosen option of a row of options: the primary's wash; dark re-points it. */
  --color-choice-active-bg: var(--primary-wash);
  /* The days between the start and the end of a chosen period: a clear tint of the primary,
     unlike the grey of a hover or a selected row, so the period reads as one stretch. The
     endpoints and the words carry the period, so the fill needs no 3:1. Dark re-declares it. */
  --color-range-bg: oklch(from var(--primary) 0.86 min(c, 0.04) h);
  /* The edge of a chosen day in a calendar: lighter than its primary fill, as dark's is, so two
     chosen days and a chosen day beside the period's tint stay apart. Dark re-declares it. */
  --color-chosen-day-edge: oklch(from var(--primary) 0.8 min(c, 0.1) h);
  /* The 2 px line under a term; dark takes the text tint, as the line tint falls short on it. */
  --color-term-line: var(--color-accent-line);
  /* The 4 px edge of a chosen row; dark takes the text tint, as the line tint falls short on the
     selected surface. */
  --color-selected-edge: var(--color-accent-line);
  /* The empty part of a progress bar. Light keeps the border grey: the inset grey vanishes on
     white; dark sinks it, so every fill reaches 3:1 on it. */
  --color-progress-track: var(--color-border-default);

  /* --- Data colors ------------------------------------------------------- */
  /* One colour per variable, named after the Rijkshuisstijl colour. */
  --color-chart-sky-blue: var(--data-sky-blue);
  --color-chart-dark-yellow: var(--data-dark-yellow);
  --color-chart-dark-yellow-text: var(--data-dark-yellow-text);
  --color-chart-red: var(--data-red);
  --color-chart-green: var(--data-green);
  --color-chart-mint-green: var(--data-mint-green);
  --color-chart-mint-green-edge: var(--data-mint-green-edge);
  --color-chart-violet: var(--data-violet);
  --color-chart-orange: var(--data-orange);
  --color-chart-orange-edge: var(--data-orange-edge);
  --color-chart-pink: var(--data-pink);
  --color-chart-pink-edge: var(--data-pink-edge);
  --color-chart-dark-green: var(--data-dark-green);
  --color-chart-purple: var(--data-purple);
  --color-chart-ruby-red: var(--data-ruby-red);
  --color-chart-yellow: var(--data-yellow);
  --color-chart-yellow-edge: var(--data-yellow-edge);
  --color-chart-dark-brown: var(--data-dark-brown);
  --color-chart-brown: var(--data-brown);
  --color-chart-dark-blue: var(--data-dark-blue);
  --color-chart-light-blue: var(--data-light-blue);
  --color-chart-light-blue-edge: var(--data-light-blue-edge);
  --color-chart-moss-green: var(--data-moss-green);
  --color-chart-secondary: var(--data-comparison); /* comparison, context */
  --color-chart-other: var(--data-other);          /* "Overig" */
  --color-chart-remainder: var(--neutral-3);       /* the rest of a whole, e.g. a donut's open part */
  --color-chart-emphasis: var(--data-emphasis);    /* trend, threshold, target */
  --color-chart-grid: var(--data-grid);
  --color-chart-axis: var(--neutral-5);
  /* The zero line (darker than the grid) and the hatch of missing data carry meaning, so they
     reach 3:1 on the surface: a fifth of the way from neutral-4 to neutral-5 (3.1:1; 4.0:1 dark). */
  --color-chart-zero: color-mix(in srgb, var(--neutral-5) 20%, var(--neutral-4));
  --color-chart-hatch: color-mix(in srgb, var(--neutral-5) 20%, var(--neutral-4));
  /* A speaker's colour under a whole fragment: this share of it over the surface, so text keeps
     its contrast in light and in dark. */
  --tint-speaker: 12%;
  /* What a recording still has to play: this share of the speaker's colour over the surface; in
     light that is the `-tint-4` step of its ladder. */
  --tint-speaker-ahead: 45%;
  /* A graph's mark, zoomed out: this share of its kind's colour over the surface. */
  --tint-graph-mark: 15%;

  /* These map colours stay deliberately neutral so the data is the only colour on the map. */
  --color-map-water: var(--neutral-0);
  --color-map-land: var(--neutral-2);
  --color-map-border: var(--neutral-4);
  /* An area with a figure: 3:1 against the land and the lightest class, which are 1.1:1 apart. */
  --color-map-border-data: var(--neutral-5);

  /* The variable a figure draws when its data names none: the first colour of the list, the
     same decision as `DEFAULT_SERIES_COLOR` in `charts/shared/colors.ts`. */
  --color-chart-default: var(--color-chart-sky-blue);

  /* Subdivision of one variable: its colour in its tint ladder, strongest first, on the steps
     100 / 75 / 60 / 45 / 30. Every colour carries its ladder, so a figure that brings a colour
     brings its tints: a renderer names `--color-chart-<colour>` and
     `--color-chart-<colour>-tint-N`, never a --data-* colour. */
  --color-chart-sky-blue-tint-2: var(--data-sky-blue-75);
  --color-chart-sky-blue-tint-3: var(--data-sky-blue-60);
  --color-chart-sky-blue-tint-4: var(--data-sky-blue-45);
  --color-chart-sky-blue-tint-5: var(--data-sky-blue-30);

  --color-chart-dark-yellow-tint-2: var(--data-dark-yellow-75);
  --color-chart-dark-yellow-tint-3: var(--data-dark-yellow-60);
  --color-chart-dark-yellow-tint-4: var(--data-dark-yellow-45);
  --color-chart-dark-yellow-tint-5: var(--data-dark-yellow-30);

  --color-chart-red-tint-2: var(--data-red-75);
  --color-chart-red-tint-3: var(--data-red-60);
  --color-chart-red-tint-4: var(--data-red-45);
  --color-chart-red-tint-5: var(--data-red-30);

  --color-chart-green-tint-2: var(--data-green-75);
  --color-chart-green-tint-3: var(--data-green-60);
  --color-chart-green-tint-4: var(--data-green-45);
  --color-chart-green-tint-5: var(--data-green-30);

  --color-chart-mint-green-tint-2: var(--data-mint-green-75);
  --color-chart-mint-green-tint-3: var(--data-mint-green-60);
  --color-chart-mint-green-tint-4: var(--data-mint-green-45);
  --color-chart-mint-green-tint-5: var(--data-mint-green-30);

  --color-chart-violet-tint-2: var(--data-violet-75);
  --color-chart-violet-tint-3: var(--data-violet-60);
  --color-chart-violet-tint-4: var(--data-violet-45);
  --color-chart-violet-tint-5: var(--data-violet-30);

  --color-chart-orange-tint-2: var(--data-orange-75);
  --color-chart-orange-tint-3: var(--data-orange-60);
  --color-chart-orange-tint-4: var(--data-orange-45);
  --color-chart-orange-tint-5: var(--data-orange-30);

  --color-chart-pink-tint-2: var(--data-pink-75);
  --color-chart-pink-tint-3: var(--data-pink-60);
  --color-chart-pink-tint-4: var(--data-pink-45);
  --color-chart-pink-tint-5: var(--data-pink-30);

  --color-chart-dark-green-tint-2: var(--data-dark-green-75);
  --color-chart-dark-green-tint-3: var(--data-dark-green-60);
  --color-chart-dark-green-tint-4: var(--data-dark-green-45);
  --color-chart-dark-green-tint-5: var(--data-dark-green-30);

  --color-chart-purple-tint-2: var(--data-purple-75);
  --color-chart-purple-tint-3: var(--data-purple-60);
  --color-chart-purple-tint-4: var(--data-purple-45);
  --color-chart-purple-tint-5: var(--data-purple-30);

  --color-chart-ruby-red-tint-2: var(--data-ruby-red-75);
  --color-chart-ruby-red-tint-3: var(--data-ruby-red-60);
  --color-chart-ruby-red-tint-4: var(--data-ruby-red-45);
  --color-chart-ruby-red-tint-5: var(--data-ruby-red-30);

  --color-chart-yellow-tint-2: var(--data-yellow-75);
  --color-chart-yellow-tint-3: var(--data-yellow-60);
  --color-chart-yellow-tint-4: var(--data-yellow-45);
  --color-chart-yellow-tint-5: var(--data-yellow-30);

  --color-chart-dark-brown-tint-2: var(--data-dark-brown-75);
  --color-chart-dark-brown-tint-3: var(--data-dark-brown-60);
  --color-chart-dark-brown-tint-4: var(--data-dark-brown-45);
  --color-chart-dark-brown-tint-5: var(--data-dark-brown-30);

  --color-chart-brown-tint-2: var(--data-brown-75);
  --color-chart-brown-tint-3: var(--data-brown-60);
  --color-chart-brown-tint-4: var(--data-brown-45);
  --color-chart-brown-tint-5: var(--data-brown-30);

  --color-chart-dark-blue-tint-2: var(--data-dark-blue-75);
  --color-chart-dark-blue-tint-3: var(--data-dark-blue-60);
  --color-chart-dark-blue-tint-4: var(--data-dark-blue-45);
  --color-chart-dark-blue-tint-5: var(--data-dark-blue-30);

  --color-chart-light-blue-tint-2: var(--data-light-blue-75);
  --color-chart-light-blue-tint-3: var(--data-light-blue-60);
  --color-chart-light-blue-tint-4: var(--data-light-blue-45);
  --color-chart-light-blue-tint-5: var(--data-light-blue-30);

  --color-chart-moss-green-tint-2: var(--data-moss-green-75);
  --color-chart-moss-green-tint-3: var(--data-moss-green-60);
  --color-chart-moss-green-tint-4: var(--data-moss-green-45);
  --color-chart-moss-green-tint-5: var(--data-moss-green-30);

  /* The default ladder, for a figure that names no colour: the sky blue's. */
  --color-chart-tint-1: var(--color-chart-sky-blue);
  --color-chart-tint-2: var(--color-chart-sky-blue-tint-2);
  --color-chart-tint-3: var(--color-chart-sky-blue-tint-3);
  --color-chart-tint-4: var(--color-chart-sky-blue-tint-4);
  --color-chart-tint-5: var(--color-chart-sky-blue-tint-5);

  /* Sequential scale for ordinal classes (heatmap, choropleth), lightest first. A component names
     these, never a --data-* colour directly. */
  --color-chart-seq-1: var(--data-sky-blue-15);
  --color-chart-seq-2: var(--data-sky-blue-30);
  --color-chart-seq-3: var(--data-sky-blue-45);
  --color-chart-seq-4: var(--data-sky-blue-75);
  --color-chart-seq-5: var(--data-sky-blue);
}

/* ============================================================================
   Dark mode — the Logius range, no inversion

   Redefines the seven `--neutral-*` primitives, re-declares `--primary-hover` lighter and
   re-points the layer-2/3 names whose meaning changes; everything that merely follows a
   neutral is absent on purpose. Page and tiles are both #282828, the border separates them: the
   step below is the menu's, so it stays a band beside the page and under the logo bar.
   Screen only: paper is always light, whatever the reader chose.
   ========================================================================= */
@media screen {
  [data-mode='dark'] {
    --neutral-0: #282828;
    --neutral-1: #1D1D1D;
    --neutral-2: #333333;
    --neutral-3: #4A4A4A;
    --neutral-4: #7A7A7A;
    --neutral-5: #B0B0B0;
    --neutral-6: #FFFFFF;

    /* The hover goes UP in dark: the light mix would put a near-black fill on the near-black page. */
    --primary-hover: color-mix(in srgb, var(--primary), white 12%);

    /* The order of light holds: menu under page under surface. The series has no step between
       the menu (neutral-1, L 0.231) and the surface (L 0.277), so the page is their midpoint
       (L 0.252); neutral-1 itself was too dark for the menu's step under it. */
    --color-bg-page: color-mix(in srgb, var(--neutral-0), var(--neutral-1));
    --color-bg-title: var(--color-bg-page);
    /* The hero's wash sits halfway between the menu and the page, under the page as in light:
       a panel or tab on it is lighter than its ground. */
    --primary-wash: oklch(from var(--primary) 0.241 min(c, 0.02) h);

    /* The filter zone must read as a band, so in dark it steps UP to neutral-2 (neutral-1 turned
       the fields in it into light boxes). `--color-bg-inset` is "sunken": neutral-1, under the
       page, as in light. */
    --color-bg-filter: var(--neutral-2);
    --color-bg-inset: var(--neutral-1);

    --color-text-inverse: var(--neutral-1);

    /* Colour that must read by itself on #282828 becomes the tint; a FILL keeps the primary. */
    --color-action-primary-border: var(--primary-tint);
    --color-action-secondary-border: var(--primary-tint);
    /* Danger hover: 8 % white is the most that keeps white text at 4.5:1 (4.56:1). The border and
       the word lift the red as the primary's tints do, to 3:1 on #282828 and 4.5:1 on #333333,
       the hover surface; the word's chroma cap keeps it inside sRGB. */
    --color-action-danger-hover: color-mix(in srgb, var(--status-error), white 8%);
    --color-action-danger-border: oklch(from var(--status-error) max(l, 0.58) c h);
    --color-action-danger-text: oklch(from var(--status-error) max(l, 0.71) min(c, 0.18) h);
    /* A status mark at 3:1 on its own tint. */
    --color-attention-line: var(--status-attention);
    --color-error-line: oklch(from var(--status-error) max(l, 0.6) c h);
    --color-info-line: oklch(from var(--status-info) max(l, 0.58) c h);
    --color-success-line: oklch(from var(--status-success) max(l, 0.57) c h);
    /* A status word at 4.5:1 on #333333, lifted as the danger word is. */
    --color-error-text: oklch(from var(--status-error) max(l, 0.71) min(c, 0.18) h);
    --color-success-text: oklch(from var(--status-success) max(l, 0.68) min(c, 0.18) h);
    /* A link is text: the text tint, not the line tint. The hover stays white. */
    --color-link: var(--primary-tint-text);
    --color-link-hover: var(--neutral-6);
    --color-link-on-status: var(--neutral-6);
    --color-accent-line: var(--primary-tint);
    --color-accent-text: var(--primary-tint-text);

    /* Lintblauw has too little contrast on the dark surface; the house style lightens it. */
    --color-logo-ribbon: var(--ribbon-blue-dark);
    --color-logo-name: var(--color-text-primary);

    /* The menu is neutral in dark: near-black, under the page, in the rail and in the bar alike,
       so it stays its own band beside the page and under the logo bar. Hover and active are one
       step up, as they are one fill in light; the edge is the text tint, as the line tint is
       3:1 on neutral-0 only. */
    --color-nav-bg: var(--neutral-1);
    --color-nav-text: var(--neutral-6);
    --color-nav-text-sub: var(--neutral-5);
    --color-nav-hover: var(--neutral-2);
    --color-nav-active: var(--neutral-2);
    --color-nav-active-edge: var(--primary-tint-text);
    --color-navbar-hover: var(--neutral-2);
    --color-navbar-active: var(--neutral-2);
    --color-navbar-active-edge: var(--primary-tint-text);
    /* The open entry's word stands on the panel's surface: full text contrast, not the tint. */
    --color-navbar-open-text: var(--color-text-primary);
    /* The label is 16 px text: the tint is 3.0:1 and needs 4.5:1. The edge keeps the tint. */
    --color-nav-active-text: var(--neutral-6);
    /* The sheet is told from the page by its shadow and this quiet line; 1.66:1 is accepted here. */
    --color-border-popover: var(--neutral-3);
    --color-nav-line: var(--neutral-2);
    --color-nav-disabled: var(--neutral-4);
    /* The deep orange falls under 3:1 on the dark warning tint; the house orange reaches 3.3:1 on
       every dark surface. */
    --color-focus: var(--focus-orange);
    /* The menu is neutral here, so its ring is the orange of every other surface. */
    --color-focus-on-theme: var(--color-focus);
    /* The choice edge keeps neutral-4 in dark: it already reaches 3:1 there (3.43:1 on #282828). */
    --color-border-choice: var(--neutral-4);

    /* A term's box is the subtle surface: behind a word on #282828 the dark wash would be a hole. */
    --color-term-bg: var(--neutral-2);
    --color-choice-active-bg: var(--neutral-2);
    /* The dark counterpart: above the surface and the subtle grey, under white text. */
    --color-range-bg: oklch(from var(--primary) 0.36 min(c, 0.04) h);
    /* The primary tint, and always a step above the fill: an orange primary is its own tint. */
    --color-chosen-day-edge: oklch(from var(--primary) max(l + 0.1, 0.55) min(c, 0.15) h);
    --color-term-line: var(--primary-tint-text);
    --color-selected-edge: var(--primary-tint-text);
    --color-progress-track: var(--color-bg-inset);

    /* Yellow as text works on the dark surface, so the dark gold is not needed. */
    --color-chart-dark-yellow-text: var(--data-dark-yellow);
    /* The edges melt into their line: on the dark surface a light colour reaches 3:1 itself. */
    --color-chart-mint-green-edge: var(--data-mint-green);
    --color-chart-orange-edge: var(--data-orange);
    --color-chart-pink-edge: var(--data-pink);
    --color-chart-yellow-edge: var(--data-yellow);
    --color-chart-light-blue-edge: var(--data-light-blue);
    /* A label on "Overig" is ink: neutral-4 holds it at 4.16:1, so the gray takes the smallest
       share of neutral-5 that reaches 4.5:1. */
    --data-other: color-mix(in srgb, var(--neutral-5) 11%, var(--neutral-4));
    --color-map-water: var(--neutral-1);

    --shadow-sticky: 0 2px 6px var(--alpha-black-40);
    --shadow-sticky-up: 0 -2px 6px var(--alpha-black-40);
    --shadow-popover: 0 4px 16px var(--alpha-black-55);
    --shadow-nav: 2px 0 8px var(--alpha-black-40);
    --shadow-chart-hover: 0 1px 4px var(--alpha-black-60);
    --shadow-scroll-start: inset 12px 0 10px -10px var(--alpha-black-60);
    --shadow-scroll-end: inset -12px 0 10px -10px var(--alpha-black-60);
    --color-overlay-nav: var(--alpha-black-40);
  }
}

/* ============================================================================
   Below 768 px the gutter follows the page padding and every pointer target is the touch
   floor. Screen only: a portrait page is narrower than 768 px and keeps the desktop form.
   ========================================================================= */
@media screen and (max-width: 767px) {
  :root {
    --grid-gutter: 16px;
    --h-target: var(--h-touch);
    --h-option: var(--h-touch);
    --chart-h-expanded: 320px;
    --w-ribbon: 2.5rem;
  }
}

/* ============================================================================
   Paper — white under the content, since Lintje prints its own fills
   (`print-color-adjust: exact` in base.css): a band in the page's grey would cost ink and
   say nothing.
   ========================================================================= */
@media print {
  :root {
    /* The paper's margin is the page's edge: bars and content start at it, aligned. */
    --page-pad-x: 0px;
    --color-bg-page: var(--neutral-0);
    --color-bg-title: var(--neutral-0);
    --color-bg-filter: var(--neutral-0);
  }
}

/* The sheet's own margin, so the content never runs to the paper's edge: room for the browser's
   date, address and page number above and below, and a portrait sheet still wide enough for the
   tablet's form. A custom property does not reach `@page`, so the value stands here. */
@page { margin: 15mm 12mm; }