verdande/web/src/app.css

/*
 * verdande — design tokens.
 *
 * Nordic minimalism: a near-neutral ground, generous space, and one accent that
 * does all the signalling. The greys are not pure grey — they carry a trace of
 * green, which is what stops a dark interface from reading as cold blue-black and
 * is most of the difference between "calm" and "unfinished".
 *
 * Everything is a token. A component that reaches for a raw hex is a component
 * that will be wrong in one of the two themes.
 */

:root {
	/* Neutrals, dark theme. Named by role, not by lightness, so the light theme
	   below can invert the scale without every name becoming a lie. */
	--ground: #111312;
	--surface: #171a19;
	--surface-raised: #1d211f;
	--surface-sunken: #0d0f0e;
	--line: #262b29;
	--line-strong: #343a37;

	--ink: #e8ebe9;
	--ink-muted: #9aa39e;
	/* The quiet tier, and the one that decides whether the interface is
	   readable: dates, counts and hints all live here. Lifted from #6b736f,
	   which sat at 3.8:1 against the ground — under AA, and it showed. */
	--ink-faint: #828a84;

	/* Nordlys-grøn. One accent, used for the checkmark, focus rings, and the
	   single primary action on a screen — and for nothing else, which is what
	   keeps it meaning "this one". */
	--accent: #5fbf8f;
	--accent-hover: #6fcf9f;
	--accent-sunken: #1c3329;
	--accent-ink: #0d1411;

	/* Priorities. Red is reserved for P1, so it never appears decoratively — if
	   something is red on this screen, it is urgent. */
	--p1: #cf6b6b;
	--p2: #d69f5c;
	--p3: #6b9ecf;
	--p4: var(--ink-faint);

	--danger: #cf6b6b;
	--danger-sunken: #33201f;

	/* Marks for projects, groups, labels and filters.
	 *
	 * The one set of colours in this file that is *not* redefined per theme, and
	 * on purpose. Everything else here is text, a ground or a border, and has to
	 * be measured against whatever sits behind it. These are none of those: they
	 * are small solid dots beside a label that carries the meaning, so what they
	 * owe is to be told apart from one another and to be visible on both a
	 * near-black and a white ground. All of them sit in the mid-tone band where
	 * that is true, which is why none is very dark or very pale.
	 *
	 * It also keeps them out of the trap the themes are in: a colour added to four
	 * blocks and forgotten in the fifth looks finished and falls back silently.
	 * There is no fifth block to forget.
	 *
	 * The ids are what the database stores. web/src/lib/colors.js lists them for
	 * the picker, and a Go test reads that file to check the server's list of
	 * accepted names has not drifted from it. */
	--color-graphite: #8a8f98;
	--color-tomato: #d9614f;
	--color-amber: #d9a04f;
	--color-lime: #a3b74d;
	--color-green: #4fae7a;
	--color-teal: #45b0ab;
	--color-blue: #5b9bd9;
	--color-indigo: #7f83d6;
	--color-violet: #a86fd0;
	--color-magenta: #d46aa8;

	/* Type. System stack: it renders instantly, matches the platform, and has
	   proper Danish glyphs on every device — a webfont would cost a round trip
	   and a flash of unstyled text on the one screen people open fifty times a day. */
	--font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', system-ui, sans-serif;
	--font-mono: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, monospace;

	--text-xs: 0.75rem;
	--text-sm: 0.8125rem;
	--text-base: 0.9375rem;
	--text-lg: 1.0625rem;
	--text-xl: 1.375rem;
	--text-2xl: 1.75rem;

	/* Spacing on a 4px grid. */
	--s1: 0.25rem;
	--s2: 0.5rem;
	--s3: 0.75rem;
	--s4: 1rem;
	--s5: 1.5rem;
	--s6: 2rem;
	--s7: 3rem;
	--s8: 4rem;

	--radius-sm: 4px;
	--radius: 8px;
	--radius-lg: 12px;
	--radius-full: 999px;

	/* Shadows are nearly absent by design. A flat surface separated by a hairline
	   reads as calmer than the same surface floating on a drop shadow. */
	--shadow: 0 1px 2px rgb(0 0 0 / 0.2);
	--shadow-lg: 0 8px 32px rgb(0 0 0 / 0.35);

	/* Motion. Fast enough to feel instant, slow enough to be seen. The
	   complete-animation is the one place a longer curve earns its keep. */
	--ease: cubic-bezier(0.2, 0, 0.2, 1);
	--ease-out: cubic-bezier(0.16, 1, 0.3, 1);
	--fast: 120ms;
	--medium: 200ms;
	--slow: 400ms;

	--sidebar-width: 268px;
	--content-max: 720px;
}

/*
 * The dark palette again, by name.
 *
 * :root carries it as the default, and :root only ever matches <html> — so a
 * swatch in the settings picker asking for data-theme="dark" would otherwise
 * inherit whatever the page is wearing. Repeated rather than restructured: the
 * alternative is splitting the token block in two and leaving somebody to work
 * out which half a new token belongs in.
 */
[data-theme='dark'] {
	--ground: #111312;
	--surface: #171a19;
	--surface-raised: #1d211f;
	--surface-sunken: #0d0f0e;
	--line: #262b29;
	--line-strong: #343a37;

	--ink: #e8ebe9;
	--ink-muted: #9aa39e;
	/* The quiet tier, and the one that decides whether the interface is
	   readable: dates, counts and hints all live here. Lifted from #6b736f,
	   which sat at 3.8:1 against the ground — under AA, and it showed. */
	--ink-faint: #828a84;

	--accent: #5fbf8f;
	--accent-hover: #6fcf9f;
	--accent-sunken: #1c3329;
	--accent-ink: #0d1411;

	--p1: #cf6b6b;
	--p2: #d69f5c;
	--p3: #6b9ecf;
	--p4: var(--ink-faint);

	--danger: #cf6b6b;
	--danger-sunken: #33201f;

	--shadow: 0 1px 2px rgb(0 0 0 / 0.2);
	--shadow-lg: 0 8px 32px rgb(0 0 0 / 0.35);
}

/*
 * The other themes.
 *
 * Each one redefines colour and nothing else: no spacing, no type, no radii.
 * That is what keeps them themes rather than five separate designs, and it is
 * why a component that reaches for a raw hex breaks in four places at once
 * instead of one.
 *
 * Every theme states its full palette rather than inheriting the dark one and
 * patching it. A partial theme looks finished until somebody adds a token, at
 * which point four themes silently fall back to a colour from a fifth.
 */

/* Skumring — the same dark, turned warm, with amber where the green was. */
[data-theme='dusk'] {
	--ground: #14110f;
	--surface: #1b1714;
	--surface-raised: #221d19;
	--surface-sunken: #100d0b;
	--line: #2b2521;
	--line-strong: #3a322c;

	--ink: #ece6df;
	--ink-muted: #a3988c;
	/* Light enough to clear 4.5:1 against the ground. The quiet tier is where
	   dates and counts live, and it is the first thing to disappear. */
	--ink-faint: #8d8377;

	--accent: #d99a4e;
	--accent-hover: #e8a95c;
	--accent-sunken: #33261480;
	--accent-ink: #16110a;

	--p1: #cf6b6b;
	--p2: #d69f5c;
	--p3: #6b9ecf;
	--p4: var(--ink-faint);

	--danger: #cf6b6b;
	--danger-sunken: #33201f;

	--shadow: 0 1px 2px rgb(0 0 0 / 0.25);
	--shadow-lg: 0 8px 32px rgb(0 0 0 / 0.4);
}

/* Papir — warm light, closer to paper than to a screen. */
[data-theme='paper'] {
	--ground: #f6f1e7;
	--surface: #fffcf6;
	--surface-raised: #fffcf6;
	--surface-sunken: #ece5d7;
	--line: #ded5c3;
	--line-strong: #c8bda6;

	--ink: #241f18;
	--ink-muted: #665c4c;
	--ink-faint: #756a55;

	--accent: #8a5a2b;
	--accent-hover: #74491f;
	--accent-sunken: #ebdfcb;
	--accent-ink: #fffcf6;

	--p1: #b0452f;
	--p2: #96701f;
	--p3: #3f6b8a;
	--p4: var(--ink-faint);

	--danger: #b0452f;
	--danger-sunken: #f3e2dc;

	--shadow: 0 1px 2px rgb(60 40 10 / 0.08);
	--shadow-lg: 0 8px 32px rgb(60 40 10 / 0.14);
}

/*
 * Kontrast — for reading in bright sun, or for eyes that the quiet greys of the
 * other four do not serve. Pure black on white, borders that are actually
 * visible, and an accent dark enough to pass against white text.
 *
 * The muted inks are deliberately much darker than elsewhere: "secondary text"
 * at 60% grey is the first thing to disappear, and it is where dates live.
 */
[data-theme='contrast'] {
	--ground: #ffffff;
	--surface: #ffffff;
	--surface-raised: #f2f2f2;
	--surface-sunken: #e8e8e8;
	--line: #767676;
	--line-strong: #1a1a1a;

	--ink: #000000;
	--ink-muted: #2b2b2b;
	--ink-faint: #4a4a4a;

	--accent: #005c2e;
	--accent-hover: #00753a;
	--accent-sunken: #cfe8da;
	--accent-ink: #ffffff;

	--p1: #a10000;
	--p2: #7a4a00;
	--p3: #00417a;
	--p4: var(--ink-faint);

	--danger: #a10000;
	--danger-sunken: #f7dcdc;

	--shadow: 0 1px 2px rgb(0 0 0 / 0.3);
	--shadow-lg: 0 8px 32px rgb(0 0 0 / 0.35);
}

[data-theme='light'] {
	--ground: #faf9f7;
	--surface: #ffffff;
	--surface-raised: #ffffff;
	--surface-sunken: #f2f1ee;
	--line: #e5e3de;
	--line-strong: #d3d0c9;

	--ink: #1c201e;
	--ink-muted: #5f6763;
	/* Was #8b918d at 3.1:1 — the worst of the five, and the theme most likely
	   to be read in daylight. */
	--ink-faint: #6e756f;

	--accent: #257552;
	--accent-hover: #1f6a49;
	--accent-sunken: #e2f0e9;
	--accent-ink: #ffffff;

	--p1: #c04a4a;
	--p2: #b57a2b;
	--p3: #3d7ab5;
	--p4: var(--ink-faint);

	--danger: #c04a4a;
	--danger-sunken: #f7e6e5;

	--shadow: 0 1px 2px rgb(0 0 0 / 0.06);
	--shadow-lg: 0 8px 32px rgb(0 0 0 / 0.12);
}

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

html,
body {
	margin: 0;
	padding: 0;
	height: 100%;
}

body {
	background: var(--ground);
	color: var(--ink);
	font-family: var(--font);
	font-size: var(--text-base);
	line-height: 1.5;
	-webkit-font-smoothing: antialiased;
	text-rendering: optimizeLegibility;
	/* The app owns its own scrolling regions; the document itself never scrolls,
	   which is what stops iOS rubber-banding the whole interface. */
	overflow: hidden;
	overscroll-behavior: none;
}

h1,
h2,
h3,
h4 {
	margin: 0;
	font-weight: 560;
	letter-spacing: -0.015em;
	line-height: 1.25;
}

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

button {
	cursor: pointer;
	background: none;
	border: none;
	padding: 0;
}

/* One focus treatment everywhere, and only for keyboard users: a focus ring that
   also appears on mouse clicks is noise that people learn to ignore. */
:focus {
	outline: none;
}

:focus-visible {
	outline: 2px solid var(--accent);
	outline-offset: 2px;
	border-radius: var(--radius-sm);
}

::selection {
	background: var(--accent-sunken);
	color: var(--ink);
}

/* Scrollbars, made quiet. The default on Windows is a wide grey slab that
   dominates a minimal layout. */
* {
	scrollbar-width: thin;
	scrollbar-color: var(--line-strong) transparent;
}

*::-webkit-scrollbar {
	width: 10px;
	height: 10px;
}

*::-webkit-scrollbar-thumb {
	background: var(--line-strong);
	border-radius: var(--radius-full);
	border: 3px solid transparent;
	background-clip: content-box;
}

*::-webkit-scrollbar-track {
	background: transparent;
}

/* Somebody who has asked for less motion gets none of it. The complete-animation
   is satisfying; it is not worth making a person nauseous. */
@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;
	}
}

/* Form fields are 16px on a touch device, whatever the component asked for.
 *
 * Below 16px, iOS Safari zooms the page in when a field takes focus — and it does
 * not zoom back out when the field is blurred. The person is left with the whole
 * interface too large and has to pinch it back themselves, once per field they
 * tap. The type scale here tops out at 15px, so every input in the app did it:
 * quick add, the sign-in form, and the task drawer worst of all, which is four
 * fields deep.
 *
 * `!important` on purpose. This is a browser workaround that has to beat every
 * component's own typography, and each of those is a scoped class that outranks
 * any selector this file could write. Narrowing it further would mean editing the
 * sixty-nine places that set a field's font size and adding a rule none of them
 * can be allowed to break.
 *
 * Touch rather than a width: an iPad in Safari does the same thing at a width no
 * phone breakpoint would catch.
 */
@media (hover: none) and (pointer: coarse) {
	input,
	textarea,
	select {
		font-size: 16px !important;
	}
}

.visually-hidden {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}