/* ============================================================================
 * DS2+ Extensions — 3-primitives.css
 *
 * Button variants (additive to existing .btn--primary/-secondary/-ghost/-large).
 * Card base + variants + modifiers + sub-classes.
 * Badge status variants.
 * Tooltip CSS-only.
 * Dialog native <dialog> styled.
 *
 * Depends on --transition-smooth, --shadow-hover, --shadow-focus-ring,
 * --hover-glow-ring from 1-tokens.css and --color-*, --s-*, --radius-*,
 * --text-*, --fw-* from tokens.css.
 * ==========================================================================*/

/* === Button variants (additive) === */
.btn--outline {
	background: var(--color-surface);
	color: var(--color-brand);
	border: 1px solid var(--color-brand);
	transition: var(--transition-smooth);
}
.btn--outline:hover {
	background: var(--color-brand-active);
}
.btn--outline:focus-visible {
	box-shadow: var(--shadow-focus-ring);
	outline: none;
}

.btn--link {
	background: transparent;
	color: var(--color-brand);
	border: none;
	padding-inline: 0;
	text-decoration: none;
	position: relative;
	transition: var(--transition-smooth);
}
.btn--link::after {
	content: "";
	position: absolute;
	left: 0;
	right: 0;
	bottom: -4px;
	height: 1px;
	background: currentColor;
	transform: scaleX(0);
	transform-origin: left;
	transition: transform var(--transition-smooth);
}
.btn--link:hover::after {
	transform: scaleX(1);
}
.btn--link:focus-visible {
	box-shadow: var(--shadow-focus-ring);
	outline: none;
}

.btn--danger {
	background: var(--color-error);
	color: #fff;
	transition: var(--transition-smooth);
}
.btn--danger:hover {
	filter: brightness(0.9);
}
.btn--danger:focus-visible {
	box-shadow: 0 0 0 3px rgba(212, 24, 61, 0.3);
	outline: none;
}

.btn--success {
	background: var(--color-success);
	color: #fff;
	transition: var(--transition-smooth);
}
.btn--success:hover {
	filter: brightness(0.9);
}
.btn--success:focus-visible {
	box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.3);
	outline: none;
}

.btn--icon-only {
	width: 2.5rem;
	height: 2.5rem;
	padding: 0;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 40px;
	min-height: 40px;
}
.btn--icon-only > svg {
	width: 1.25rem;
	height: 1.25rem;
}

/* Button sizes — .btn--large already exists in primitives/button.css */
.btn--sm {
	height: 2rem;
	padding: 0.375rem 0.75rem;
	font-size: var(--text-sm);
}
.btn--xl {
	height: 3.5rem;
	padding: 1.125rem 2rem;
	font-size: var(--text-lg);
}

/* === Card base === */
.card {
	display: flex;
	flex-direction: column;
	padding: var(--s-6);
	border-radius: var(--radius-lg);
	background: var(--color-surface);
	border: 1px solid var(--color-border);
}

/* Card modifiers */
.card--elevated {
	box-shadow: var(--shadow-sm);
	transition: var(--transition-smooth);
}
.card--elevated:hover {
	box-shadow: var(--shadow-hover);
	transform: translateY(-2px);
}
.card--outlined {
	box-shadow: none;
	transition: border-color var(--transition-smooth);
}
.card--outlined:hover {
	border-color: var(--color-brand);
}

.card--interactive {
	cursor: pointer;
	position: relative;
}
.card--interactive:focus-within {
	box-shadow: var(--shadow-focus-ring);
	outline: none;
}
.card--interactive .card__link::after {
	content: "";
	position: absolute;
	inset: 0;
}

/* Card sub-classes — prescribed styles to avoid variability between pages. */
.card__icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 2.5rem;
	height: 2.5rem;
	border-radius: var(--radius-md);
	background: var(--color-brand-active);
	color: var(--color-brand);
	flex-shrink: 0;
}
.card__icon > svg {
	width: 1.25rem;
	height: 1.25rem;
}

.card__eyebrow {
	font-size: var(--text-xs);
	font-weight: var(--fw-semi);
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--color-text-muted);
	margin: 0 0 var(--s-2);
}
.card__title {
	font-size: var(--text-lg);
	font-weight: var(--fw-semi);
	color: var(--color-text);
	line-height: var(--lh-tight);
	margin: var(--s-3) 0 var(--s-2);
}
.card__desc {
	font-size: var(--text-sm);
	color: var(--color-text-muted);
	line-height: var(--lh-base);
	margin: 0 0 var(--s-4);
}
.card__link {
	font-size: var(--text-sm);
	font-weight: var(--fw-medium);
	color: var(--color-brand);
	text-decoration: none;
	margin-top: auto; /* requires .card display:flex column */
}
.card__link:hover {
	text-decoration: underline;
	text-underline-offset: 0.25em;
}

.card__metric {
	margin: 0 0 var(--s-2);
	color: var(--color-brand);
}
.card__label {
	font-size: var(--text-sm);
	color: var(--color-text);
	margin: 0 0 var(--s-3);
}

/* Metric variant — sets display scale on the .card__metric value and aligns
   the card as a compact KPI tile. Pairs with .card__metric + .card__label
   + optional .card__desc. */
.card--metric {
	padding: var(--s-6);
}
.card--metric .card__metric {
	font-size: var(--display-md, clamp(2rem, 4vw + 1rem, 3rem));
	font-weight: 700;
	line-height: 1.1;
	letter-spacing: -0.02em;
}
.card__trend {
	display: inline-flex;
	align-items: center;
	gap: var(--s-2);
	font-size: var(--text-xs);
	color: var(--color-text-muted);
	margin: 0;
}
.card__trend--up {
	color: var(--color-success);
}
.card__trend--down {
	color: var(--color-error);
}

/* === Badge status variants === */
/* color-success (#16a34a, green-600) on green-50 bg = 3.14:1 — fails WCAG AA.
   Using green-700 (#15803d) instead gets 5.5:1 which passes AA for normal text. */
.badge--up {
	color: #15803d;
	background: #f0fdf4;
}
.badge--down {
	color: var(--color-error);
	background: #fef2f2;
}
.badge--warning {
	color: var(--color-warning);
	background: #fffbeb;
}
.badge--info {
	color: var(--color-brand);
	background: var(--color-brand-active);
}

.badge--dot {
	display: inline-flex;
	align-items: center;
	gap: 0.375rem;
}
.badge--dot::before {
	content: "";
	width: 0.375rem;
	height: 0.375rem;
	border-radius: 50%;
	background: currentColor;
}

/* === Tooltip CSS-only ===
   Short labels (< 60 chars) on focusable elements only.
   Decorative — a11y content must be duplicated via aria-label / aria-describedby. */
[data-tooltip] {
	position: relative;
}
[data-tooltip]::after {
	content: attr(data-tooltip);
	position: absolute;
	bottom: calc(100% + 6px);
	left: 50%;
	transform: translateX(-50%);
	padding: 0.375rem 0.625rem;
	background: var(--color-brand);
	color: #fff;
	font-size: var(--text-xs);
	border-radius: var(--radius-sm);
	white-space: nowrap;
	opacity: 0;
	pointer-events: none;
	transition: opacity var(--transition-smooth);
	transition-delay: var(--duration-slow);
}
[data-tooltip]:hover::after,
[data-tooltip]:focus-visible::after {
	opacity: 1;
}

[data-tooltip-placement="bottom"]::after {
	top: calc(100% + 6px);
	bottom: auto;
}
[data-tooltip-placement="left"]::after {
	right: calc(100% + 6px);
	left: auto;
	top: 50%;
	bottom: auto;
	transform: translateY(-50%);
}
[data-tooltip-placement="right"]::after {
	left: calc(100% + 6px);
	top: 50%;
	bottom: auto;
	transform: translateY(-50%);
}

/* === Dialog (native <dialog>) === */
.dialog {
	max-width: 32rem;
	width: calc(100% - 2rem);
	padding: var(--s-8);
	border: none;
	border-radius: var(--radius-xl);
	box-shadow: var(--shadow-lg);
	background: var(--color-surface);
	color: var(--color-text);
}
.dialog::backdrop {
	background: rgba(20, 28, 82, 0.5);
}

.dialog__title {
	font-size: var(--text-2xl);
	margin: 0 0 var(--s-3);
	color: var(--color-text);
}
.dialog__body {
	font-size: var(--text-base);
	color: var(--color-text);
	margin: 0 0 var(--s-6);
}
.dialog__actions {
	display: flex;
	gap: var(--s-3);
	justify-content: flex-end;
}
.dialog__close {
	position: absolute;
	top: var(--s-3);
	right: var(--s-3);
}

@keyframes dialog-in {
	from {
		opacity: 0;
		transform: scale(0.98);
	}
	to {
		opacity: 1;
		transform: scale(1);
	}
}
.dialog[open] {
	animation: dialog-in var(--transition-smooth);
}