/*
* Site styles. There is no CSS framework and no build step — this file is
* served exactly as written, so everything the site needs is here or in the
* site's own additions below.
*
* ---------------------------------------------------------------------------
* FLUID TYPE & SPACE SCALE
*
* Every size below is derived from the six anchor numbers in --u-*. Change an
* anchor and the whole scale moves with it, in proportion. That is the point:
* retuning a site is editing six numbers, not auditing every value in the file.
*
* Each step is a clamp() between its value at the minimum viewport and its
* value at the maximum, so text and spacing scale smoothly with the viewport
* instead of jumping at breakpoints. No media queries are needed for sizing.
*
* TO RETUNE FOR THIS SITE (see refs/design/DESIGN.md):
* --u-min-ratio / --u-max-ratio how dramatic the jump between sizes is.
* 1.2 (minor third) reads calm and even;
* 1.333 (perfect fourth) reads confident;
* above ~1.4 gets shouty for a practice site.
* --u-min-font / --u-max-font base body size at each end, in px.
* --u-min-vw / --u-max-vw the viewport range the scale spans.
*
* A larger max-ratio with the same min-ratio gives a site that is restrained on
* a phone and expressive on a desktop, which usually suits a hero-led page.
*/
:root {
/* --- Anchors: the dial for this site ------------------------------- */
--u-min-vw: 320;
--u-max-vw: 1240;
--u-min-font: 16;
--u-max-font: 18;
--u-min-ratio: 1.2;
--u-max-ratio: 1.25;
/* --- Derivation. Not usually edited by hand. ----------------------- */
/* Slope and intercept of the line between the two anchor viewports,
* expressed so each step can be written as clamp(min, calc(...), max). */
--u-vw-range: calc(var(--u-max-vw) - var(--u-min-vw));
/* Type steps, in rem at each anchor. Each step multiplies the previous
* one by the ratio, so the relationship between sizes is fixed even as the
* absolute values move. */
--u-min-0: calc(var(--u-min-font) / 16);
--u-max-0: calc(var(--u-max-font) / 16);
--u-min--2: calc(var(--u-min-0) / var(--u-min-ratio) / var(--u-min-ratio));
--u-max--2: calc(var(--u-max-0) / var(--u-max-ratio) / var(--u-max-ratio));
--u-min--1: calc(var(--u-min-0) / var(--u-min-ratio));
--u-max--1: calc(var(--u-max-0) / var(--u-max-ratio));
--u-min-1: calc(var(--u-min-0) * var(--u-min-ratio));
--u-max-1: calc(var(--u-max-0) * var(--u-max-ratio));
--u-min-2: calc(var(--u-min-1) * var(--u-min-ratio));
--u-max-2: calc(var(--u-max-1) * var(--u-max-ratio));
--u-min-3: calc(var(--u-min-2) * var(--u-min-ratio));
--u-max-3: calc(var(--u-max-2) * var(--u-max-ratio));
--u-min-4: calc(var(--u-min-3) * var(--u-min-ratio));
--u-max-4: calc(var(--u-max-3) * var(--u-max-ratio));
--u-min-5: calc(var(--u-min-4) * var(--u-min-ratio));
--u-max-5: calc(var(--u-max-4) * var(--u-max-ratio));
/* --- Type scale ---------------------------------------------------- */
/* step--2 fine print · step-0 body · step-2/3 section headings ·
* step-4/5 hero display. Use these, not raw px. */
--step--2: clamp(calc(var(--u-min--2) * 1rem), calc(var(--u-min--2) * 1rem + (var(--u-max--2) - var(--u-min--2)) * (100vw - var(--u-min-vw) * 1px) / var(--u-vw-range) * 16), calc(var(--u-max--2) * 1rem));
--step--1: clamp(calc(var(--u-min--1) * 1rem), calc(var(--u-min--1) * 1rem + (var(--u-max--1) - var(--u-min--1)) * (100vw - var(--u-min-vw) * 1px) / var(--u-vw-range) * 16), calc(var(--u-max--1) * 1rem));
--step-0: clamp(calc(var(--u-min-0) * 1rem), calc(var(--u-min-0) * 1rem + (var(--u-max-0) - var(--u-min-0)) * (100vw - var(--u-min-vw) * 1px) / var(--u-vw-range) * 16), calc(var(--u-max-0) * 1rem));
--step-1: clamp(calc(var(--u-min-1) * 1rem), calc(var(--u-min-1) * 1rem + (var(--u-max-1) - var(--u-min-1)) * (100vw - var(--u-min-vw) * 1px) / var(--u-vw-range) * 16), calc(var(--u-max-1) * 1rem));
--step-2: clamp(calc(var(--u-min-2) * 1rem), calc(var(--u-min-2) * 1rem + (var(--u-max-2) - var(--u-min-2)) * (100vw - var(--u-min-vw) * 1px) / var(--u-vw-range) * 16), calc(var(--u-max-2) * 1rem));
--step-3: clamp(calc(var(--u-min-3) * 1rem), calc(var(--u-min-3) * 1rem + (var(--u-max-3) - var(--u-min-3)) * (100vw - var(--u-min-vw) * 1px) / var(--u-vw-range) * 16), calc(var(--u-max-3) * 1rem));
--step-4: clamp(calc(var(--u-min-4) * 1rem), calc(var(--u-min-4) * 1rem + (var(--u-max-4) - var(--u-min-4)) * (100vw - var(--u-min-vw) * 1px) / var(--u-vw-range) * 16), calc(var(--u-max-4) * 1rem));
--step-5: clamp(calc(var(--u-min-5) * 1rem), calc(var(--u-min-5) * 1rem + (var(--u-max-5) - var(--u-min-5)) * (100vw - var(--u-min-vw) * 1px) / var(--u-vw-range) * 16), calc(var(--u-max-5) * 1rem));
/* --- Weight -------------------------------------------------------- */
/* Named by the CSS value, not by a word. "bold" is a claim about how a
* typeface renders; 700 is what you actually asked for, and two faces
* disagree about which of their cuts reads as bold.
*
* THREE WEIGHTS, DELIBERATELY. Body, emphasis, headline — that is the
* whole system, and it is expressed by which tokens exist rather than by
* a rule asking politely. Adding --weight-800 needs a reason: the face
* has a visibly distinct heavy cut AND 700 alone is not creating enough
* contrast. If 700 and 800 render identically on screen, that is not one.
* A flat hierarchy is almost always a spacing or size problem, not a
* weight problem. */
--weight-400: 400; /* body */
--weight-600: 600; /* nav, card emphasis, eyebrows */
--weight-700: 700; /* headlines, CTAs */
/* --- Leading ------------------------------------------------------- */
/* A ladder rather than a derived scale, so it is t-shirt sized like
* --space-* rather than numbered like --step-*. Tightest to loosest.
*
* The relationship worth holding: line-height falls as type size rises.
* Display type at body leading looks unset; body copy at display leading
* is unreadable. Pair --leading-xs with --step-4/5 and --leading-l with
* --step-0. */
--leading-xs: 1.05; /* display, very large headlines */
--leading-s: 1.18; /* headings */
--leading-m: 1.3; /* subheadings, ledes, card copy */
--leading-l: 1.5; /* body copy */
--leading-xl: 1.6; /* long-form and small print, which need more air */
/* --- Tracking ------------------------------------------------------ */
/* Same shape: a ladder, tightest to loosest, in em so it scales with
* whatever size it is applied to.
*
* The relationship: tracking tightens as size grows, and ALL-CAPS always
* needs opening up — uppercase at 0 tracking reads cramped at any size.
* Pair --tracking-xs with --step-4/5, --tracking-m with body, and
* --tracking-l or --tracking-xl with any text-transform: uppercase. */
--tracking-xs: -0.02em; /* large display */
--tracking-s: -0.01em; /* headings */
--tracking-m: 0; /* body — the default, stated so it can be reset to */
--tracking-l: 0.04em; /* small caps-ish, buttons */
--tracking-xl: 0.08em; /* eyebrows and other all-caps runs */
/* --- Space scale --------------------------------------------------- */
/* Multiples of the base size rather than the type ratio, so spacing stays
* predictable while type can be as dramatic as the site needs. */
--space-3xs: clamp(0.25rem, calc(0.25rem + 0.1vw), 0.375rem);
--space-2xs: clamp(0.5rem, calc(0.45rem + 0.2vw), 0.625rem);
--space-xs: clamp(0.75rem, calc(0.68rem + 0.3vw), 0.9375rem);
--space-s: clamp(1rem, calc(0.91rem + 0.43vw), 1.25rem);
--space-m: clamp(1.5rem, calc(1.37rem + 0.65vw), 1.875rem);
--space-l: clamp(2rem, calc(1.82rem + 0.87vw), 2.5rem);
--space-xl: clamp(3rem, calc(2.73rem + 1.3vw), 3.75rem);
--space-2xl: clamp(4rem, calc(3.64rem + 1.74vw), 5rem);
--space-3xl: clamp(6rem, calc(5.46rem + 2.61vw), 7.5rem);
/* --- Space pairs --------------------------------------------------- */
/* A pair moves from the SMALLER step on a phone to the LARGER one on a
* desktop, so the gap changes step rather than merely scaling. This is what
* replaces per-breakpoint section padding: --space-l-2xl is roughly the old
* "40-48px mobile, 80-96px desktop" rule, expressed once. */
--space-2xs-xs: clamp(0.5rem, calc(0.35rem + 0.76vw), 0.9375rem);
--space-xs-s: clamp(0.75rem, calc(0.57rem + 0.87vw), 1.25rem);
--space-s-m: clamp(1rem, calc(0.7rem + 1.52vw), 1.875rem);
--space-m-l: clamp(1.5rem, calc(1.13rem + 1.85vw), 2.5rem);
--space-l-xl: clamp(2rem, calc(1.36rem + 3.15vw), 3.75rem);
--space-xl-2xl: clamp(3rem, calc(2.27rem + 3.62vw), 5rem);
--space-l-2xl: clamp(2rem, calc(0.91rem + 5.43vw), 5rem);
--space-s-l: clamp(1.125rem, calc(0.72rem + 2.04vw), 2.5rem); /* skip-a-step: grid gutter */
--space-2xl-3xl: clamp(4rem, calc(2.55rem + 7.24vw), 7.5rem);
/* --- Measure ------------------------------------------------------- */
--measure: 65ch; /* body copy */
--measure-tight: 45ch; /* card and caption copy */
/* =====================================================================
* COLOUR
*
* Three anchors drive the whole palette. Change them to match the
* practice; everything else follows. See refs/design/DESIGN.md.
*
* That is the default path, and most sites never go past it. Underneath,
* the palette is layered so a site can take more control WITHOUT hand-
* writing hex values, which is what a migrated site needs:
*
* 1. Anchors the three below. Tune these first.
* 2. Per-role --chroma-secondary, --l-tertiary and friends. A
* brand's second colour is a designer's pick, not a
* rotation of the first, so each role carries its own
* hue, chroma and lightness, defaulting to the anchors.
* 3. Neutrals --hue-neutral, --chroma-ink, --chroma-ground. Greys
* are their own decision -- see the block below.
* 4. Polarity --scheme. One number flips light/dark.
*
* Derive WITHIN a role, declare ACROSS roles. This is the same split
* Bootstrap 5.3 makes (mix() generates each scale; the base of each theme
* colour is declared) and the opposite of deriving everything from one
* hue, which cannot express a real brand pair.
*
* --palette-hue the practice's brand hue, 0-360.
* Roughly: 25 terracotta · 60 ochre · 145 green
* · 195 teal · 240 blue · 275 violet · 340 rose
* --palette-chroma how saturated the brand reads. OKLCH chroma is
* NOT 0-1 — it runs about 0-0.37 in sRGB, and
* above ~0.15 a surface colour starts to shout.
* 0.04 muted · 0.09 confident · 0.14 vivid
* --palette-secondary-shift
* degrees from the primary to the secondary.
* 150-180 gives a complement; 30-60 an analogous
* neighbour that reads calmer.
* ===================================================================== */
--palette-hue: 195;
--palette-chroma: 0.09;
--palette-secondary-shift: 150;
--hue-primary: var(--palette-hue);
--hue-secondary: calc(var(--palette-hue) + var(--palette-secondary-shift));
/* Secondary and tertiary each carry their OWN chroma and lightness, not
* the primary's. They default to it, so a site built from this template
* still tunes with the three numbers above and renders identically.
*
* The override exists because a brand's second colour is often a designer's
* choice rather than a systematic partner: on a migrated site the secondary
* was measured at 3.6x the primary's chroma and 0.26 lighter in OKLCH
* (deep forest green against warm terracotta). One shared chroma and one
* shared lightness cannot express that pair, and forcing it produced a
* washed-out grey-green beside a dusty mauve.
*
* This is the same concession the feedback colours below already make --
* each of those carries its own chroma because "yellows need more to read
* as yellow, reds less before they turn fluorescent". Brand colours want
* the same latitude. */
--chroma-secondary: var(--palette-chroma);
--l-secondary: var(--l-solid);
/* Tertiary: a third brand colour, typically doing button/CTA work, that is
* neither a tint of the primary nor semantic. Practices routinely have one
* ("Button Brown", "Morning Orange"). Defaults to an analogous neighbour of
* the primary so it is harmless when unused. */
--palette-tertiary-shift: 30;
--hue-tertiary: calc(var(--palette-hue) + var(--palette-tertiary-shift));
--chroma-tertiary: var(--palette-chroma);
--l-tertiary: var(--l-solid);
/* --- Neutrals: their own hue, not the brand's ---------------------
*
* --hue-neutral defaults to the brand hue, so a site that sets nothing
* keeps the "greys feel of a piece with the accent" behaviour. But it is
* a SEPARATE dial, because tying greys to the brand hue is not what any
* mature system does and not what real practices choose:
*
* - Tailwind ships five grey families (slate/gray/zinc/neutral/stone)
* precisely so the temperature of the greys is a decision.
* - Bootstrap keeps $gray independent of $theme-colors.
* - daisyUI declares base-100/200/300 per theme.
*
* And measured on our own migrated sites: both chose warm grounds at hue
* 80-94 despite green brands at 145 and 166 -- roughly 80 degrees off the
* brand. A green practice does not want green text, and at the default
* hue 195 the old derivation gave --ink-strong an R-to-B spread of 17,
* i.e. a visibly blue-black rather than a black.
*
* Set --hue-neutral to taste: the brand hue for a tinted-grey scheme, a
* warm 70-90 for a settled off-black, or leave chroma at 0 for a true
* neutral. --chroma-ink and --chroma-ground are separate because ink
* carries tint better than a large ground does -- the same chroma that
* reads as "warm grey" in a heading reads as "the wrong white" across a
* full-bleed background. */
/* +80 deg off the brand, which is what the previous code already did for
* --ink-strong alone, and what both migrated practices independently
* chose for their grounds (warm 80-94 against green brands at 145/166).
* It defaults to the brand hue so that adding this dial changes nothing on
* an existing site; the interesting values are elsewhere:
*
* var(--palette-hue) greys tinted toward the brand (default)
* calc(var(--palette-hue) + 80) the offset real practices tend to pick
* 70-90 a warm, settled off-black
* with --chroma-ink: 0 a true neutral, no hue at all
*/
--hue-neutral: var(--palette-hue);
--chroma-ink: 0.012; /* text. 0 = true grey; 0.03 = clearly tinted */
--chroma-ground: calc(0.004 + 0.008 * (1 - var(--scheme))); /* page background */
--chroma-surface: calc(0.000 + 0.014 * (1 - var(--scheme))); /* raised surfaces */
--chroma-border: calc(0.008 + 0.007 * (1 - var(--scheme))); /* rules and outlines */
/* Grounds carry MORE tint when dark and less when light: 0.014 across a
* near-black reads as a warm dark, the same 0.014 across a near-white
* reads as a colour cast. The old code expressed this by declaring the
* light and dark neutrals separately; here it rides on --scheme. */
/* Feedback hues are FIXED and do not follow the brand. A danger colour
* that rotates with the practice's hue stops reading as danger — the
* entire value of a semantic colour is that it means the same thing on
* every site. Only the brand colours above derive from --palette-hue. */
--hue-success: 145;
--hue-warning: 75;
--hue-danger: 27;
--hue-info: 240;
/* Lightness ramp. Dark mode overrides these below rather than declaring a
* second palette — in OKLCH, dark mode is largely an inversion of these
* four numbers. */
--l-solid: 0.55; /* solid fills: buttons, badges */
--l-hover: 0.48; /* one step darker for hover */
--l-light: 0.66; /* one step lighter: gradient partner for --primary */
--l-muted: 0.92; /* a touch stronger than pale, for wash gradients */
--l-pale: 0.96; /* tinted backgrounds */
--l-on-solid: 0.99;/* text on a solid fill */
/* --- Polarity -----------------------------------------------------
*
* --scheme is the one number that says which way round the site runs:
* 1 = dark ink on a light ground (the norm), 0 = light ink on a dark
* ground. Every neutral below is written as "light value, plus the
* distance to its dark counterpart, times (1 - scheme)", so flipping the
* one number inverts the whole set consistently.
*
* This is why the dark-mode block further down only sets --scheme and the
* three brand-lightness values, instead of re-declaring eight neutrals
* with a second set of hand-picked literals. Two hand-maintained sets
* drift: the old block never declared --ink-strong at all, so headings
* stayed at lightness 0.18 -- dark text on a dark ground.
*
* A site that should ALWAYS render dark sets --scheme: 0 here and deletes
* the media query. A site that should never flip deletes the query alone. */
--scheme: 1;
/* Neutral lightness, light-mode value first, dark-mode value second.
* Edit these to shift contrast; they are dials, not literals buried in
* the colour definitions. */
--l-ink-strong: calc(0.18 + 0.79 * (1 - var(--scheme)));
--l-ink: calc(0.25 + 0.70 * (1 - var(--scheme)));
--l-ink-mid: calc(0.45 + 0.35 * (1 - var(--scheme)));
--l-ink-soft: calc(0.54 + 0.12 * (1 - var(--scheme)));
--l-bg: calc(0.99 - 0.81 * (1 - var(--scheme)));
--l-surface: calc(1.00 - 0.78 * (1 - var(--scheme)));
--l-border: calc(0.90 - 0.58 * (1 - var(--scheme)));
--l-border-strong: calc(0.82 - 0.40 * (1 - var(--scheme)));
/* Brand */
--primary: oklch(var(--l-solid) var(--palette-chroma) var(--hue-primary));
--primary-hover: oklch(var(--l-hover) var(--palette-chroma) var(--hue-primary));
--primary-light: oklch(var(--l-light) var(--palette-chroma) var(--hue-primary));
--primary-muted: oklch(var(--l-muted) calc(var(--palette-chroma) * 0.35) var(--hue-primary));
/* Chroma falls as lightness rises — a pale tint at full chroma reads
* muddy rather than tinted. */
--primary-pale: oklch(var(--l-pale) calc(var(--palette-chroma) * 0.25) var(--hue-primary));
--on-primary: oklch(var(--l-on-solid) 0 0);
--secondary: oklch(var(--l-secondary) var(--chroma-secondary) var(--hue-secondary));
--secondary-hover: oklch(calc(var(--l-secondary) - 0.07) var(--chroma-secondary) var(--hue-secondary));
--secondary-light: oklch(calc(var(--l-secondary) + 0.11) var(--chroma-secondary) var(--hue-secondary));
--secondary-pale: oklch(var(--l-pale) calc(var(--chroma-secondary) * 0.25) var(--hue-secondary));
--on-secondary: oklch(var(--l-on-solid) 0 0);
/* Tertiary, same shape as the two above. */
--tertiary: oklch(var(--l-tertiary) var(--chroma-tertiary) var(--hue-tertiary));
--tertiary-hover: oklch(calc(var(--l-tertiary) - 0.07) var(--chroma-tertiary) var(--hue-tertiary));
--tertiary-pale: oklch(var(--l-pale) calc(var(--chroma-tertiary) * 0.25) var(--hue-tertiary));
--on-tertiary: oklch(var(--l-on-solid) 0 0);
/* Aliases for the older names in DESIGN.md, so existing markup and any
* site copied from an earlier template keep working. */
--accent: var(--primary);
--accent-dark: var(--primary-hover);
--accent-pale: var(--primary-pale);
/* Feedback. Chroma is per-hue: yellows need more to read as yellow, reds
* less before they turn fluorescent. */
--success: oklch(calc(var(--l-solid) - 0.03) 0.13 var(--hue-success));
--success-pale: oklch(var(--l-pale) 0.03 var(--hue-success));
--warning: oklch(0.75 0.14 var(--hue-warning));
--warning-pale: oklch(var(--l-pale) 0.04 var(--hue-warning));
--danger: oklch(var(--l-solid) 0.17 var(--hue-danger));
--danger-pale: oklch(var(--l-pale) 0.03 var(--hue-danger));
--info: oklch(var(--l-solid) 0.11 var(--hue-info));
--info-pale: oklch(var(--l-pale) 0.03 var(--hue-info));
/* Neutrals. DESIGN.md asked in prose for "a teal practice and a navy
* practice want different --ink warmth"; --hue-neutral is that, made a
* dial instead of a fixed derivation from the brand.
*
* Hue and chroma come from the --hue-neutral / --chroma-*
* dials above, lightness from the --l-* dials, so all three are tunable
* without editing any of these lines. Ink chroma tapers as text gets
* lighter, and grounds use the lower --chroma-ground throughout. */
--ink-strong: oklch(var(--l-ink-strong) calc(var(--chroma-ink) * 2.5) calc(var(--hue-neutral) + 80)); /* headings, dark surfaces */
--ink: oklch(var(--l-ink) calc(var(--chroma-ink) * 1.25) var(--hue-neutral));
--ink-mid: oklch(var(--l-ink-mid) var(--chroma-ink) var(--hue-neutral));
--ink-soft: oklch(var(--l-ink-soft) calc(var(--chroma-ink) * 0.833) var(--hue-neutral));
--bg: oklch(var(--l-bg) var(--chroma-ground) var(--hue-neutral));
--surface: oklch(var(--l-surface) var(--chroma-surface) var(--hue-neutral));
--border: oklch(var(--l-border) var(--chroma-border) var(--hue-neutral));
--border-strong: oklch(var(--l-border-strong) calc(var(--chroma-border) * 1.25) var(--hue-neutral));
/* Paired foreground for each ground, the way daisyUI's -content and
* Bootstrap's -emphasis work. Use --on-bg rather than reaching for --ink
* directly when the ground itself might be flipped. */
--on-bg: var(--ink);
--on-surface: var(--ink);
/* --- Grid ---------------------------------------------------------- */
/* Deliberately minimal: the container and gutter are fluid, placement is
* left to each layout. Use .u-container and .u-grid below. */
--grid-max-width: 77.5rem;
--grid-gutter: var(--space-s-l);
--grid-columns: 12;
/* --- Radius -------------------------------------------------------- */
/* Named by intent rather than by number, so a change of scale does not
* mean auditing every --radius-3 in the stylesheet. */
--radius-xs: 0.25rem; /* tags, inline chips */
--radius-s: 0.5rem; /* buttons, inputs */
--radius-m: 0.75rem; /* cards */
--radius-l: 1.25rem; /* panels, modals, hero media */
--radius-round: 50%; /* avatars */
--radius-pill: 999px; /* pills, badges */
/* --- Border widths ------------------------------------------------- */
--border-thin: 1px;
--border-medium: 2px;
--border-thick: 4px; /* accent rules, active states */
/* --- Shadows ------------------------------------------------------- */
/* Two knobs drive every shadow. --shadow-color takes the brand hue so a
* raised card reads as part of this practice rather than as generic grey;
* --shadow-strength is what dark mode adjusts, because a shadow on a dark
* background needs MORE opacity to be seen, not less. */
--shadow-color: var(--hue-primary, 220) 20% 15%;
--shadow-strength: 1%;
--shadow-s:
0 1px 2px -1px hsl(var(--shadow-color) / calc(var(--shadow-strength) + 9%));
--shadow-m:
0 3px 5px -2px hsl(var(--shadow-color) / calc(var(--shadow-strength) + 3%)),
0 7px 14px -5px hsl(var(--shadow-color) / calc(var(--shadow-strength) + 5%));
--shadow-l:
0 -1px 3px 0 hsl(var(--shadow-color) / calc(var(--shadow-strength) + 2%)),
0 6px 12px -3px hsl(var(--shadow-color) / calc(var(--shadow-strength) + 3%)),
0 15px 30px -6px hsl(var(--shadow-color) / calc(var(--shadow-strength) + 5%));
--shadow-inner-s: inset 0 1px 2px 0 hsl(var(--shadow-color) / calc(var(--shadow-strength) + 6%));
--shadow-inner-m: inset 0 2px 6px 0 hsl(var(--shadow-color) / calc(var(--shadow-strength) + 9%));
/* --- Layers -------------------------------------------------------- */
/* Six values, so z-index is never invented at the call site. */
--layer-behind: -1; /* decorative washes sitting behind content */
--layer-base: 1;
--layer-raised: 2; /* hover cards, sticky rows */
--layer-nav: 3; /* sticky header */
--layer-overlay: 4; /* dropdowns, popovers */
--layer-modal: 5; /* dialogs and their backdrop */
--layer-top: 2147483647;/* skip links, live-region alerts */
/* --- Motion -------------------------------------------------------- */
--duration-fast: 120ms; /* hover, focus */
--duration-base: 220ms; /* most transitions */
--duration-slow: 400ms; /* entrances */
--ease-out: cubic-bezier(0.22, 1, 0.36, 1);
--ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
--reveal-distance: 1.5rem;
/* Typefaces. Set these per site; everything else references them. */
--font-body: system-ui, -apple-system, 'Segoe UI', sans-serif;
--font-heading: var(--font-body); /* override for a display face */
}
/*
* Dark mode. In OKLCH this is mostly an inversion of the lightness ramp
* rather than a second palette — the hues and chroma above are unchanged.
*
* Two things are not simple inversions and are set explicitly:
* - the accent gets LIGHTER (0.68, not 0.55), because a mid-lightness
* accent loses contrast against a dark background;
* - --shadow-strength rises, because a shadow on a dark surface needs more
* opacity to be visible at all.
*
* Delete this block for a site that should only ever render light.
*/
@media (prefers-color-scheme: dark) {
:root {
/* Flipping --scheme inverts every neutral at once, via the --l-*
* dials. The three brand values below are NOT a polarity flip -- a
* brand colour has to get lighter and less contrasty on a dark
* ground to stay legible, which is a different adjustment. */
--scheme: 0;
--l-solid: 0.68;
--l-hover: 0.75;
--l-pale: 0.24;
--l-on-solid: 0.18;
--shadow-strength: 12%;
}
}
/* ═══════════════════════════════════════════════════════════════════════
* RESET
*
* Josh Comeau's Custom CSS Reset (joshwcomeau.com/css/custom-css-reset/),
* lightly adapted. Normalises browser defaults so the base layer below is
* building on the same ground in every browser. Leave this alone; make
* design decisions in the base layer and the tokens above it.
* ═══════════════════════════════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html {
-webkit-text-size-adjust: 100%;
-moz-text-size-adjust: 100%;
text-size-adjust: 100%;
}
body {
-webkit-font-smoothing: antialiased;
line-height: 1.5;
}
/* Media is block-level and never overflows its container. */
img, picture, video, canvas, svg {
display: block;
max-width: 100%;
}
/* Form controls inherit typography rather than using browser chrome. */
input, button, textarea, select { font: inherit; }
/* Long words and URLs wrap instead of forcing a horizontal scrollbar. */
p, h1, h2, h3, h4, h5, h6 { overflow-wrap: break-word; }
/* A new stacking context on the root, so app-level layers cannot escape. */
#root, #__next { isolation: isolate; }
@media (prefers-reduced-motion: reduce) {
*, *::before, *::after {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
scroll-behavior: auto !important;
}
}
/* ═══════════════════════════════════════════════════════════════════════
* ELEMENT BASE LAYER
*
* Bare elements are styled here so a page is correct with no classes at
* all. Without this, an unclassed
falls back to the browser default
* and whoever writes the page patches it with an inline style — which is
* how a site ends up with a different heading treatment per page.
*
* Every heading has a matching .h1-.h6 class. Use the ELEMENT for document
* structure (SEO, screen readers, outline) and the CLASS for appearance,
* so an
can look like an eyebrow without lying about the hierarchy:
*
*
Still the page's real heading, just smaller
*
* Sites override these; they are a floor, not a straitjacket.
* ═══════════════════════════════════════════════════════════════════════ */
body {
font-family: var(--font-body);
font-size: var(--step-0);
font-weight: var(--weight-400);
line-height: var(--leading-l);
color: var(--ink);
background: var(--bg);
}
/* Headings ─────────────────────────────────────────────────────────────
* Margins are top-heavy on purpose: a heading belongs to what follows it,
* so the space above is larger than the space below. */
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
margin: var(--space-l) 0 var(--space-s);
font-family: var(--font-heading);
font-weight: var(--weight-700);
line-height: var(--leading-s);
letter-spacing: var(--tracking-xs);
color: var(--ink-strong);
text-wrap: balance;
}
:where(h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6) + * {
margin-top: 0;
}
/* A heading opening its container needs no space above it. */
:where(h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6):first-child {
margin-top: 0;
}
h1, .h1 { font-size: var(--step-5); }
h2, .h2 { font-size: var(--step-4); }
h3, .h3 { font-size: var(--step-3); }
h4, .h4 { font-size: var(--step-2); }
h5, .h5 { font-size: var(--step-1); line-height: var(--leading-m); }
h6, .h6 {
font-size: var(--step-0);
line-height: var(--leading-m);
letter-spacing: var(--tracking-m);
text-transform: uppercase;
}
/* A highlighted phrase inside a heading. One mechanism, not three. */
:where(h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6) em {
font-style: italic;
color: var(--primary);
}
/* Text ─────────────────────────────────────────────────────────────── */
p, ul, ol, dl, blockquote, figure, table, pre {
margin: 0 0 var(--space-m);
}
/*
* Line length is a container's job, not every paragraph's — capping each
* leaves text hugging the left of any column already sized for reading.
* Use .measure (or set a width on the container) where prose needs it.
*/
.measure { max-width: var(--measure); }
.measure-tight { max-width: var(--measure-tight); }
/* Opening paragraph: larger and looser than body copy. */
.lede {
font-size: var(--step-1);
line-height: var(--leading-m);
color: var(--ink-mid);
}
/* Small label above a heading. */
.eyebrow {
display: block;
margin-bottom: var(--space-2xs);
font-size: var(--step--1);
font-weight: var(--weight-600);
letter-spacing: var(--tracking-l);
text-transform: uppercase;
color: var(--primary);
}
small, .text-small { font-size: var(--step--1); }
strong, b { font-weight: var(--weight-700); }
a {
color: var(--primary);
text-decoration-thickness: 1px;
text-underline-offset: 0.15em;
transition: color var(--duration-fast) var(--ease-out);
}
a:hover { color: var(--primary-hover); }
/* A visible focus ring on every interactive element, always. */
:focus-visible {
outline: 2px solid var(--primary);
outline-offset: 2px;
border-radius: var(--radius-xs);
}
ul, ol { padding-left: var(--space-m); }
/*
* List spacing applies to PROSE lists only. Navigation, button groups and
* card grids are lists too, and flow margins on those knock flex/grid items
* out of alignment (the site header) or balloon the spacing (the footer).
*
* Presence of a class is not the test — a footer nav is a nav whether or not
* anyone put a class on it — so navigation context opts out explicitly.
*/
:where(ul, ol) > li { margin-bottom: var(--space-2xs); }
:where(ul, ol) > li:last-child { margin-bottom: 0; }
nav ul, nav ol,
header ul, header ol,
footer ul, footer ol,
menu {
margin: 0;
padding-left: 0;
list-style: none;
}
nav li, header li, footer li, menu li {
margin-bottom: 0;
}
/* A list explicitly used for layout carries no bullets, indent or margin. */
:where(ul, ol)[class] {
margin: 0;
padding-left: 0;
list-style: none;
}
:where(ul, ol)[class] > li { margin-bottom: 0; }
blockquote {
padding-left: var(--space-m);
border-left: var(--border-thick) solid var(--primary-pale);
color: var(--ink-mid);
font-style: italic;
}
hr {
height: 0;
margin: var(--space-l) 0;
border: 0;
border-top: var(--border-thin) solid var(--border);
}
code, kbd, samp, pre {
font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
font-size: 0.9em;
}
/* Media ────────────────────────────────────────────────────────────────
* Images are rounded by default. The square-photo bug on Wellbrook was an
* with no radius sitting beside cards that had one. */
img, picture, video, canvas, svg {
height: auto;
}
img {
border-radius: var(--radius-m);
background: var(--surface);
}
/*
* Logos, icons and inline SVG are not photographs — a background plate and a
* radius are wrong for them, and show up as a white box on a dark footer.
*/
img[class*="logo"], img[class*="icon"], .logo img, svg {
border-radius: 0;
background: none;
}
/* Opt out where a radius is wrong: full-bleed art, decorative crops. */
img.is-flush, .is-flush img { border-radius: 0; background: none; }
figure { margin-inline: 0; }
figcaption {
margin-top: var(--space-2xs);
font-size: var(--step--1);
color: var(--ink-soft);
}
/* Tables ───────────────────────────────────────────────────────────── */
table {
width: 100%;
border-collapse: collapse;
text-align: left;
}
th, td {
padding: var(--space-2xs) var(--space-xs);
border-bottom: var(--border-thin) solid var(--border);
vertical-align: top;
}
th {
font-weight: var(--weight-600);
color: var(--ink-strong);
}
tbody tr:last-child :where(th, td) { border-bottom: 0; }
/* Forms ────────────────────────────────────────────────────────────── */
label {
display: block;
margin-bottom: var(--space-3xs);
font-size: var(--step--1);
font-weight: var(--weight-600);
color: var(--ink-strong);
}
input, select, textarea {
width: 100%;
padding: var(--space-2xs) var(--space-xs);
font-family: inherit;
font-size: var(--step-0);
color: var(--ink);
background: var(--surface);
border: var(--border-thin) solid var(--border-strong);
border-radius: var(--radius-s);
transition: border-color var(--duration-fast) var(--ease-out);
}
input:hover, select:hover, textarea:hover { border-color: var(--ink-soft); }
input:focus, select:focus, textarea:focus { border-color: var(--primary); }
textarea { min-height: 8rem; resize: vertical; }
input[type="checkbox"], input[type="radio"] {
width: auto;
accent-color: var(--primary);
}
/* Buttons size to their content, not to the form-control full width. */
input[type="submit"], input[type="button"] { width: auto; }
/*
* A bare