/* =========================================================================
   CSI theme — tokens, base, shared components (buttons, links, fields, tags)
   Source of values: Design/drafts/wip/Carbon Standards Home v6 (rendered DOM).
   ========================================================================= */

:root {
	/* colour */
	--csi-green: #2E9751;
	--csi-green-dark: #257a42;
	--csi-green-light: #ADDEBE;
	--csi-green-tint: rgba(46, 151, 81, 0.12);
	--csi-dark: #1D272B;
	--csi-sand: #F5EFE3;
	--csi-grey: #F2F2F2;
	--csi-grey-strong: #E4E4E4;
	--csi-white: #FFFFFF;
	--csi-text: #1D272B;
	--csi-text-2: #3F4B50;
	--csi-text-3: #56636A;
	--csi-line: rgba(29, 39, 43, 0.12);
	--csi-line-soft: rgba(29, 39, 43, 0.08);
	--csi-line-inverse: rgba(255, 255, 255, 0.18);
	--csi-on-dark-2: rgba(255, 255, 255, 0.72);
	--csi-overlay: rgba(29, 39, 43, 0.62);

	/* type */
	--csi-font-display: 'Poppins', system-ui, sans-serif;
	--csi-font-body: 'Work Sans', system-ui, sans-serif;
	--csi-text-xs: 0.75rem;     /* 12 */
	--csi-text-sm: 0.875rem;    /* 14 */
	--csi-text-base: 1rem;      /* 16 */
	--csi-text-body: 1.0625rem; /* 17 */
	--csi-text-lg: 1.125rem;    /* 18 */
	--csi-tracking-caps: 0.14em;
	--csi-tracking-caps-wide: 0.2em;

	/* space (design scale 4/8/16/32 …) */
	--csi-space-1: 4px;
	--csi-space-2: 8px;
	--csi-space-3: 12px;
	--csi-space-4: 16px;
	--csi-space-5: 20px;
	--csi-space-6: 24px;
	--csi-space-8: 32px;
	--csi-space-10: 40px;
	--csi-space-12: 48px;
	--csi-space-14: 56px;
	--csi-space-16: 64px;
	--csi-space-20: 80px;
	--csi-space-24: 96px;
	--csi-section-y: clamp(96px, 11.6vw, 168px);
	--csi-section-y-compact: clamp(64px, 6.6vw, 96px);

	/* layout */
	--csi-container: 1320px;           /* incl. 2 × 32 px gutter → 1256 content */
	--csi-gutter: 32px;
	--csi-header-h: 74px;
	--csi-topbar-h: 48px;

	/* motion */
	--csi-ease: cubic-bezier(0.65, 0, 0.35, 1);
	--csi-t-fast: 0.18s;
	--csi-t-radius: 0.28s;
	--csi-radius-hover: 10px;
}

/* section rhythm of design v7: 120 px (≤1024), 88 px (≤720) */
@media (max-width: 1024px) {
	:root { --csi-section-y: 120px; }
}
@media (max-width: 720px) {
	:root {
		--csi-gutter: 20px;
		--csi-header-h: 64px;
		--csi-section-y: 88px;
	}
}

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

html {
	scroll-behavior: smooth;
	scroll-padding-top: calc(var(--csi-header-h) + 16px);
	-webkit-text-size-adjust: 100%;
}

body {
	margin: 0;
	background: var(--csi-white);
	color: var(--csi-text);
	font-family: var(--csi-font-body);
	font-size: var(--csi-text-body);
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
	text-rendering: optimizeLegibility;
	overflow-x: hidden;
	overflow-x: clip; /* clip: no scroll container, so position: sticky keeps working */
}

h1, h2, h3, h4, h5 {
	margin: 0;
	font-family: var(--csi-font-display);
	font-weight: 600;
	line-height: 1.08;
	letter-spacing: -0.03em;
}

p { margin: 0; }
ul, ol { margin: 0; padding: 0; }
img, svg, video { max-width: 100%; height: auto; display: block; }
figure { margin: 0; }

a {
	color: var(--csi-green);
	text-decoration: none;
	transition: color var(--csi-t-fast) ease;
}
a:hover { color: var(--csi-dark); }

button { font: inherit; cursor: pointer; }
::selection { background: var(--csi-green); color: var(--csi-white); }
:focus-visible { outline: 2px solid var(--csi-green); outline-offset: 3px; }

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

.csi-skip-link {
	position: absolute;
	left: 16px; top: -60px;
	z-index: 200;
	background: var(--csi-green);
	color: var(--csi-white);
	font-family: var(--csi-font-display);
	font-weight: 500;
	font-size: 14.5px;
	padding: 12px 20px;
	border-radius: 0 0 12px 12px;
	transition: top 0.16s;
}
.csi-skip-link:focus { top: 0; color: var(--csi-white); }

/* ------------------------------------------------------------------ layout */
.csi-container {
	width: 100%;
	max-width: var(--csi-container);
	margin-inline: auto;
	padding-inline: var(--csi-gutter);
}

.csi-section { position: relative; }
.csi-section--bg-sand { background: var(--csi-sand); }
.csi-section--bg-grey { background: var(--csi-grey); }
.csi-section--bg-white { background: var(--csi-white); }
.csi-section--bg-dark { background: var(--csi-dark); color: var(--csi-white); }
.csi-section--space-default { padding-block: var(--csi-section-y); }
.csi-section--space-compact { padding-block: var(--csi-section-y-compact); }
.csi-section--space-none { padding-block: 0; }

.csi-split {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
	gap: var(--csi-space-6) var(--csi-space-16);
	align-items: end;
}

/* ------------------------------------------------------------------ eyebrow tag */
.csi-eyebrow {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	padding: 7px 14px 7px 12px;
	border: 1px solid rgba(29, 39, 43, 0.14);
	font-size: 12px;
	font-weight: 600;
	letter-spacing: var(--csi-tracking-caps);
	text-transform: uppercase;
	line-height: 1.6;
	color: var(--csi-dark);
}
.csi-eyebrow::before {
	content: "";
	width: 7px; height: 7px;
	border-radius: 50%;
	background: var(--csi-green);
	flex: 0 0 auto;
}
.csi-eyebrow--inverse {
	color: var(--csi-white);
	border-color: rgba(255, 255, 255, 0.35);
	background: rgba(29, 39, 43, 0.25);
	backdrop-filter: blur(8px);
}

.csi-kicker {
	font-size: 12px;
	font-weight: 600;
	letter-spacing: var(--csi-tracking-caps);
	line-height: 1.45;
	text-transform: uppercase;
	color: var(--csi-green);
}

/* ------------------------------------------------------------------ buttons */
.csi-button {
	display: inline-flex;
	align-items: center;
	gap: 12px;
	padding: 14px 24px;
	border: 1px solid transparent;
	border-radius: 0;
	font-family: var(--csi-font-display);
	font-weight: 500;
	font-size: 15px;
	line-height: 1.6;
	white-space: nowrap;
	text-decoration: none;
	cursor: pointer;
	transition: background var(--csi-t-fast), color var(--csi-t-fast), border-color var(--csi-t-fast), border-radius var(--csi-t-radius);
}
.csi-button:hover,
.csi-button:focus-visible { border-radius: var(--csi-radius-hover); }
.csi-button__icon { display: inline-flex; width: 1em; justify-content: center; }
.csi-button__icon svg { width: 16px; height: 16px; }

.csi-button--lg { padding: 16px 28px; font-size: 16px; }
.csi-button--sm { padding: 10px 16px; font-size: 14px; gap: 10px; }

.csi-button--primary { background: var(--csi-green); color: var(--csi-white); }
.csi-button--primary:hover,
.csi-button--primary:focus-visible { background: var(--csi-white); color: var(--csi-dark); }
.csi-on-light .csi-button--primary:hover,
.csi-on-light .csi-button--primary:focus-visible { background: var(--csi-dark); color: var(--csi-white); }

.csi-button--dark { background: var(--csi-dark); color: var(--csi-white); }
.csi-button--dark:hover,
.csi-button--dark:focus-visible { background: var(--csi-green); color: var(--csi-white); }

.csi-button--ghost {
	background: rgba(29, 39, 43, 0.22);
	color: var(--csi-white);
	border-color: rgba(255, 255, 255, 0.35);
	backdrop-filter: blur(6px);
}
.csi-button--ghost:hover,
.csi-button--ghost:focus-visible { background: var(--csi-white); color: var(--csi-dark); border-color: var(--csi-white); }
.csi-on-light .csi-button--ghost { background: transparent; color: var(--csi-dark); border-color: rgba(29, 39, 43, 0.25); backdrop-filter: none; }
.csi-on-light .csi-button--ghost:hover,
.csi-on-light .csi-button--ghost:focus-visible { background: var(--csi-dark); color: var(--csi-white); border-color: var(--csi-dark); }

.csi-button--light { background: var(--csi-white); color: var(--csi-dark); }
.csi-button--light:hover,
.csi-button--light:focus-visible { background: var(--csi-dark); color: var(--csi-white); }

.csi-buttons { display: flex; flex-wrap: wrap; gap: 10px 12px; }

/* square icon buttons (slider arrows) */
.csi-arrow {
	width: 52px; height: 52px;
	display: inline-flex; align-items: center; justify-content: center;
	border: 1px solid rgba(29, 39, 43, 0.25);
	background: var(--csi-white);
	color: var(--csi-dark);
	border-radius: 0;
	transition: background var(--csi-t-fast), color var(--csi-t-fast), border-radius var(--csi-t-radius), opacity var(--csi-t-fast);
}
.csi-arrow svg { width: 20px; height: 20px; }
.csi-arrow:not([disabled]):hover,
.csi-arrow:not([disabled]):focus-visible { background: var(--csi-dark); color: var(--csi-white); border-radius: var(--csi-radius-hover); }
.csi-arrow--next { background: var(--csi-green); border-color: var(--csi-green); color: var(--csi-white); }
.csi-arrow--next:not([disabled]):hover,
.csi-arrow--next:not([disabled]):focus-visible { background: var(--csi-dark); border-color: var(--csi-dark); }
.csi-section--bg-dark .csi-arrow:not([disabled]):hover,
.csi-section--bg-dark .csi-arrow:not([disabled]):focus-visible { border-radius: var(--csi-radius-hover); }
.csi-arrow[disabled] { opacity: 0.35; cursor: default; }
/* on dark sections the dark hover would vanish: both arrows green, white on hover (Emil, 05.10.) */
.csi-section--bg-dark .csi-arrow { background: var(--csi-green); border-color: var(--csi-green); color: var(--csi-white); }
.csi-section--bg-dark .csi-arrow:not([disabled]):hover,
.csi-section--bg-dark .csi-arrow:not([disabled]):focus-visible { background: var(--csi-white); border-color: var(--csi-white); color: var(--csi-dark); }
.csi-arrows { display: flex; gap: 12px; }

/* text link with underline */
.csi-textlink {
	display: inline-flex; align-items: center; gap: 10px;
	padding-bottom: 6px;
	border-bottom: 1px solid var(--csi-green);
	font-family: var(--csi-font-display);
	font-weight: 500;
	font-size: 16px;
	color: var(--csi-dark);
}
.csi-textlink:hover { color: var(--csi-green); }

/* ------------------------------------------------------------------ form fields */
.csi-field { display: flex; flex-direction: column; gap: 6px; }
.csi-field__label { font-size: 14px; font-weight: 500; color: var(--csi-text); }
.csi-input,
.csi-select,
.csi-textarea {
	width: 100%;
	border: 1px solid rgba(29, 39, 43, 0.2);
	border-radius: 0;
	background: var(--csi-white);
	padding: 12px 14px;
	font: inherit;
	font-size: 15px;
	color: var(--csi-text);
	transition: border-color var(--csi-t-fast), box-shadow var(--csi-t-fast);
}
.csi-input::placeholder,
.csi-textarea::placeholder { color: var(--csi-text-3); }
.csi-input:focus,
.csi-select:focus,
.csi-textarea:focus { outline: none; border-color: var(--csi-green); box-shadow: 0 0 0 3px var(--csi-green-tint); }

/* ------------------------------------------------------------------ rich text */
.csi-prose { font-size: var(--csi-text-body); line-height: 1.7; color: var(--csi-text-2); }
.csi-prose > * + * { margin-top: 1em; }
.csi-prose a { color: var(--csi-green); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.csi-prose a:hover { color: var(--csi-dark); }
.csi-prose strong { color: var(--csi-text); font-weight: 600; }
/* tables in plain text pages, e.g. the cookie table of the privacy statement (S4pr, 15.10.2026); narrow screens scroll the table, not the page */
.csi-prose table { display: block; max-width: 100%; overflow-x: auto; border-collapse: collapse; font-size: 14px; line-height: 1.5; }
.csi-prose th, .csi-prose td { padding: 10px 12px; border-bottom: 1px solid var(--csi-line); text-align: left; vertical-align: top; min-width: 120px; }
.csi-prose thead th { background: var(--csi-grey); color: var(--csi-text); font-weight: 600; }
.csi-prose code { font-size: 13px; overflow-wrap: anywhere; }
.csi-prose ul, .csi-prose ol { padding-left: 1.3em; }
.csi-prose li + li { margin-top: 0.35em; }
.csi-prose ul li::marker { color: var(--csi-green); }
.csi-prose h3, .csi-prose h4 { color: var(--csi-text); font-size: 1.15em; letter-spacing: -0.02em; margin-top: 1.4em; }

/* staging-only marker for missing content */
.csi-content-needed {
	display: inline-flex; align-items: center; gap: 8px;
	padding: 6px 10px;
	background: #FFF3CD;
	color: #6B4E00;
	border: 1px dashed #C99A00;
	font-family: var(--csi-font-body);
	font-size: 13px; font-weight: 600;
	letter-spacing: 0.02em;
}

@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	*, *::before, *::after {
		animation-duration: 0.001ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.001ms !important;
	}
}

/* "C-Sink" never breaks at its hyphen (inc/typography.php) */
.csi-nb { white-space: nowrap; }