/*
 * The suite sits on a desk: ink-blue in the dark, pale periwinkle in the
 * light. Paper stays paper in both, and each app keeps one colour of its own.
 */
:root {
	--desk: #121433;
	--desk-lit: #22265a;
	--surface: #191c42;
	--ink: #ecedf8;
	--ink-soft: #a3a6cc;
	--line: rgba(236, 237, 248, 0.13);
	--paper: #fcfcf9;
	--paper-ink: #1d2040;
	--paper-rule: #dfe1ea;
	--shadow: 0 2.2cqw 4cqw -1cqw rgba(3, 4, 22, 0.6), 0 0.3cqw 0.6cqw rgba(3, 4, 22, 0.35);
	--shadow-lift: 0 4cqw 6cqw -1.5cqw rgba(3, 4, 22, 0.7), 0 0.4cqw 0.8cqw rgba(3, 4, 22, 0.4);
	--slide: #e2552d;
	--page: #3d6bf0;
	--sheet: #1f9d63;
	--diagram: #8a6cf0;

	--font: 'Schibsted Grotesk', system-ui, -apple-system, 'Segoe UI', sans-serif;
	--topbar: 3.5rem;
	--gutter: clamp(1rem, 5vw, 4.5rem);
	color-scheme: dark;
}

@media (prefers-color-scheme: light) {
	:root:not([data-theme='dark']) {
		--desk: #e4e6f1;
		--desk-lit: #f6f7fc;
		--surface: #ffffff;
		--ink: #121433;
		--ink-soft: #4f547d;
		--line: rgba(18, 20, 51, 0.13);
		--shadow: 0 2cqw 4cqw -1.2cqw rgba(18, 20, 51, 0.3), 0 0.3cqw 0.6cqw rgba(18, 20, 51, 0.1);
		--shadow-lift:
			0 4cqw 6cqw -1.8cqw rgba(18, 20, 51, 0.36), 0 0.4cqw 0.8cqw rgba(18, 20, 51, 0.12);
		color-scheme: light;
	}
}

:root[data-theme='light'] {
	--desk: #e4e6f1;
	--desk-lit: #f6f7fc;
	--surface: #ffffff;
	--ink: #121433;
	--ink-soft: #4f547d;
	--line: rgba(18, 20, 51, 0.13);
	--shadow: 0 2cqw 4cqw -1.2cqw rgba(18, 20, 51, 0.3), 0 0.3cqw 0.6cqw rgba(18, 20, 51, 0.1);
	--shadow-lift: 0 4cqw 6cqw -1.8cqw rgba(18, 20, 51, 0.36), 0 0.4cqw 0.8cqw rgba(18, 20, 51, 0.12);
	color-scheme: light;
}

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

html,
body {
	margin: 0;
	background: var(--desk);
	color: var(--ink);
	font-family: var(--font);
	font-size: 1.0625rem;
	-webkit-font-smoothing: antialiased;
}

body.in-app {
	height: 100dvh;
	overflow: hidden;
}

a {
	color: inherit;
}

:focus-visible {
	outline: 2px solid var(--ink);
	outline-offset: 3px;
}

[hidden] {
	display: none !important;
}

.visually-hidden {
	position: absolute;
	width: 1px;
	height: 1px;
	overflow: hidden;
	clip-path: inset(50%);
	white-space: nowrap;
}

.tag {
	display: inline-block;
	padding: 0.1rem 0.5rem;
	border-radius: 999px;
	font-size: 0.72rem;
	font-weight: 600;
	line-height: 1.5;
	color: #fff;
	background: var(--app, var(--ink-soft));
}

.tag--planned {
	color: var(--ink);
	background: var(--line);
}

/* ---- Top bar ------------------------------------------------------ */

.topbar {
	position: sticky;
	top: 0;
	z-index: 10;
	display: flex;
	align-items: center;
	gap: 0.75rem;
	height: var(--topbar);
	padding: 0 1rem;
	background: color-mix(in srgb, var(--desk) 85%, transparent);
	backdrop-filter: blur(14px);
	border-bottom: 1px solid var(--line);
}

.topbar__waffle,
.topbar__theme {
	display: grid;
	place-items: center;
	width: 2.25rem;
	height: 2.25rem;
	border: 0;
	border-radius: 8px;
	background: transparent;
	color: var(--ink-soft);
	cursor: pointer;
}

.topbar__waffle svg {
	width: 1.05rem;
	height: 1.05rem;
}

.topbar__theme svg {
	width: 1.15rem;
	height: 1.15rem;
}

.topbar__waffle:hover,
.topbar__theme:hover {
	background: var(--line);
	color: var(--ink);
}

.topbar__brand {
	font-weight: 800;
	letter-spacing: -0.02em;
	text-decoration: none;
	white-space: nowrap;
}

.topbar__app {
	display: flex;
	align-items: center;
	gap: 0.65rem;
	min-width: 0;
	padding-left: 0.9rem;
	border-left: 1px solid var(--line);
}

.topbar__app .app-icon {
	width: 1.7rem;
	height: 1.7rem;
	flex-shrink: 0;
}

.topbar__app-name {
	font-weight: 700;
	white-space: nowrap;
}

.topbar__framework select {
	font: 500 0.85rem var(--font);
	color: var(--ink);
	background: var(--surface);
	border: 1px solid var(--line);
	border-radius: 6px;
	padding: 0.3rem 0.5rem;
}

.topbar__action {
	font-size: 0.875rem;
	font-weight: 600;
	color: var(--ink);
	text-decoration: none;
	white-space: nowrap;
	padding: 0.35rem 0.6rem;
	border-radius: 6px;
}

.topbar__action:hover {
	background: var(--line);
}

.topbar__action--quiet {
	color: var(--ink-soft);
	font-weight: 500;
}

.topbar__links {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	margin-left: auto;
	font-size: 0.9rem;
}

.topbar__links > a {
	color: var(--ink-soft);
	text-decoration: none;
	padding: 0.4rem 0.5rem;
}

.topbar__links > a:hover {
	color: var(--ink);
}

/* ---- Hero copy ---------------------------------------------------- */

.hero {
	display: grid;
	grid-template-columns: minmax(0, 11fr) minmax(0, 13fr);
	align-items: center;
	gap: clamp(2rem, 5vw, 5rem);
	max-width: 88rem;
	min-height: calc(100svh - var(--topbar));
	margin: 0 auto;
	padding: clamp(2.5rem, 7vh, 5rem) var(--gutter) clamp(3rem, 8vh, 6rem);
	/* One lamp over the desk, centred on the papers. */
	background: radial-gradient(48rem 34rem at 72% 48%, var(--desk-lit), transparent 70%);
}

.hero h1 {
	margin: 0;
	font-size: clamp(3.2rem, 6.4vw, 7rem);
	font-weight: 850;
	line-height: 0.88;
	letter-spacing: -0.05em;
	text-wrap: balance;
}

.hero__lede {
	max-width: 30rem;
	margin: 1.75rem 0 0;
	font-size: 1.2rem;
	line-height: 1.55;
	color: var(--ink-soft);
}

.hero__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
	margin-top: 2.25rem;
}

.button {
	display: inline-flex;
	align-items: center;
	gap: 0.55rem;
	padding: 0.85rem 1.3rem;
	border-radius: 10px;
	font-weight: 700;
	text-decoration: none;
	transition: transform 140ms ease;
}

.button:hover {
	transform: translateY(-1px);
}

.button--slide {
	color: #fff;
	background: var(--slide);
}

.button--page {
	color: var(--ink);
	box-shadow: inset 0 0 0 1.5px var(--line);
}

.button--page:hover {
	box-shadow: inset 0 0 0 1.5px var(--page);
}

.button__tag {
	padding: 0.05rem 0.45rem;
	border-radius: 999px;
	font-size: 0.72rem;
	font-weight: 600;
	color: #fff;
	background: var(--page);
}

/* ---- App dock ----------------------------------------------------- */

.dock,
.core,
.footer {
	max-width: 88rem;
	margin: 0 auto;
	padding-left: var(--gutter);
	padding-right: var(--gutter);
}

h2 {
	margin: 0;
	font-size: clamp(1.6rem, 3vw, 2.3rem);
	font-weight: 800;
	letter-spacing: -0.03em;
	line-height: 1.05;
}

.dock {
	padding-top: clamp(2rem, 6vh, 4rem);
	padding-bottom: clamp(3rem, 8vh, 5rem);
	border-top: 1px solid var(--line);
}

.dock__grid {
	display: grid;
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: 1rem clamp(1rem, 3vw, 2.5rem);
	margin: 2rem 0 0;
	padding: 0;
	list-style: none;
}

.app {
	display: grid;
	gap: 0.35rem;
	justify-items: start;
	padding: 0.75rem;
	margin: -0.75rem;
	border-radius: 14px;
	text-decoration: none;
}

a.app:hover {
	background: color-mix(in srgb, var(--app) 12%, transparent);
}

a.app:focus-visible {
	outline-color: var(--app);
}

.app .app-icon {
	width: 4.25rem;
	height: 4.25rem;
	margin-bottom: 0.6rem;
	transition: transform 160ms ease;
}

a.app:hover .app-icon {
	transform: translateY(-3px) rotate(-3deg);
}

.app--off .app-icon {
	filter: grayscale(0.7);
	opacity: 0.5;
}

.app__name {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	font-size: 1.2rem;
	font-weight: 750;
	letter-spacing: -0.01em;
}

.app--off .app__name {
	color: var(--ink-soft);
}

.app__desc {
	font-size: 0.95rem;
	line-height: 1.45;
	color: var(--ink-soft);
}

/* ---- One core ----------------------------------------------------- */

.core {
	display: grid;
	grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
	grid-template-rows: auto 1fr;
	column-gap: clamp(2rem, 5vw, 5rem);
	padding-top: clamp(3rem, 8vh, 5rem);
	padding-bottom: clamp(3rem, 8vh, 5rem);
	border-top: 1px solid var(--line);
}

.core__lede {
	grid-column: 1;
	margin: 1rem 0 0;
	max-width: 28rem;
	line-height: 1.6;
	color: var(--ink-soft);
}

.core h2 {
	grid-column: 1;
}

.core__list {
	grid-column: 2;
	grid-row: 1 / span 2;
	margin: 0;
}

.core__list div {
	display: grid;
	grid-template-columns: 11rem minmax(0, 1fr);
	gap: 1.5rem;
	padding: 1.1rem 0;
	border-bottom: 1px solid var(--line);
}

.core__list div:first-child {
	padding-top: 0.3rem;
}

.core__list dt {
	font-weight: 750;
}

.core__list dt a {
	text-decoration: underline;
	text-decoration-color: var(--line);
	text-underline-offset: 0.25em;
	text-decoration-thickness: 2px;
}

.core__list dt a:hover {
	text-decoration-color: currentColor;
}

.core__list dd {
	margin: 0;
	line-height: 1.55;
	color: var(--ink-soft);
}

.footer {
	padding-top: 2rem;
	padding-bottom: 2.5rem;
	font-size: 0.85rem;
	line-height: 1.6;
	color: var(--ink-soft);
}

.footer p {
	max-width: 52rem;
	margin: 0;
}

/* ---- Workspace (embedded app) ------------------------------------- */

.button--visio {
	background: #6546c0;
	color: white;
}
.button--excel {
	background: #167848;
	color: white;
}

.workspace {
	position: relative;
	height: calc(100dvh - var(--topbar));
	background: var(--surface);
}

.workspace iframe {
	display: block;
	width: 100%;
	height: 100%;
	border: 0;
}

.workspace__loading {
	position: absolute;
	inset: 0;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 1rem;
	font-size: 0.95rem;
	color: var(--ink-soft);
	background: var(--desk);
	pointer-events: none;
}

.spinner {
	width: 28px;
	height: 28px;
	border-radius: 50%;
	border: 2.5px solid var(--line);
	border-top-color: var(--app, var(--ink));
	animation: spin 0.9s linear infinite;
}

@keyframes spin {
	to {
		transform: rotate(360deg);
	}
}

/* ---- Small screens ------------------------------------------------ */

@media (max-width: 900px) {
	.hero,
	.core {
		grid-template-columns: minmax(0, 1fr);
	}
	.core {
		grid-template-rows: none;
		row-gap: 2rem;
	}
	.hero {
		min-height: 0;
		background: radial-gradient(40rem 30rem at 50% 75%, var(--desk-lit), transparent 70%);
	}
	.core__list {
		grid-column: 1;
		grid-row: auto;
	}
	.dock__grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
		gap: 2rem 1.5rem;
	}
}

@media (max-width: 720px) {
	.topbar__links > a,
	.topbar__action--quiet {
		display: none;
	}
	body.in-app .topbar__brand,
	.topbar__app .tag {
		display: none;
	}
	.topbar__app {
		padding-left: 0;
		border-left: 0;
	}
	.core__list div {
		grid-template-columns: minmax(0, 1fr);
		gap: 0.35rem;
	}
}

@media (max-width: 480px) {
	.topbar__action {
		display: none;
	}
}

@media (prefers-reduced-motion: reduce) {
	.spinner {
		animation-duration: 2.5s;
	}
	.button,
	.app .app-icon {
		transition: none;
	}
}