/**
 * KB design system components
 * All selectors are scoped under .kb-design.
 */

/* -------------------------------------------------------------------------- */
/* Base                                                                       */
/* -------------------------------------------------------------------------- */

.kb-design {
	background: var(--kb-bg);
	color: var(--kb-text);
	font-family: var(--kb-font-sans);
	font-size: var(--kb-fs-base);
	font-weight: var(--kb-fw-regular);
	line-height: var(--kb-lh-body);
	-webkit-font-smoothing: antialiased;
	text-rendering: optimizeLegibility;
}

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

.kb-design img {
	max-width: 100%;
	height: auto;
	display: block;
}

.kb-design a {
	color: var(--kb-accent);
	text-decoration-thickness: 1px;
	text-underline-offset: 0.18em;
	transition: color var(--kb-duration) var(--kb-ease);
}

.kb-design a:hover,
.kb-design a:focus-visible {
	color: var(--kb-accent-hover);
}

.kb-design :focus-visible {
	outline: 2px solid var(--kb-color-focus);
	outline-offset: 3px;
	box-shadow: var(--kb-shadow-focus);
}

.kb-design :focus:not(:focus-visible) {
	outline: none;
	box-shadow: none;
}

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

@media (prefers-reduced-motion: reduce) {
	.kb-design,
	.kb-design * {
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		transition-duration: 0.01ms !important;
		scroll-behavior: auto !important;
	}
}

/* -------------------------------------------------------------------------- */
/* Layout                                                                     */
/* -------------------------------------------------------------------------- */

.kb-design .kb-container {
	width: min(100% - (var(--kb-container-pad) * 2), var(--kb-container-max));
	margin-inline: auto;
}

.kb-design .kb-container--narrow {
	width: min(100% - (var(--kb-container-pad) * 2), var(--kb-container-narrow));
}

.kb-design .kb-section {
	padding-block: var(--kb-section-pad-y);
}

.kb-design .kb-section + .kb-section {
	border-top: var(--kb-border-width) solid var(--kb-border);
}

.kb-design .kb-stack {
	display: flex;
	flex-direction: column;
	gap: var(--kb-content-gap);
}

.kb-design .kb-stack--sm {
	gap: var(--kb-space-md);
}

.kb-design .kb-cluster {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: var(--kb-space-md);
}

.kb-design .kb-grid {
	display: grid;
	gap: var(--kb-space-lg);
}

.kb-design .kb-grid--2 {
	grid-template-columns: 1fr;
}

.kb-design .kb-grid--3 {
	grid-template-columns: 1fr;
}

.kb-design .kb-grid--4 {
	grid-template-columns: 1fr;
}

@media (min-width: 640px) {
	.kb-design .kb-grid--2 {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.kb-design .kb-grid--4 {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (min-width: 960px) {
	.kb-design .kb-grid--3 {
		grid-template-columns: repeat(3, minmax(0, 1fr));
	}

	.kb-design .kb-grid--4 {
		grid-template-columns: repeat(4, minmax(0, 1fr));
	}
}

/* -------------------------------------------------------------------------- */
/* Typography                                                                 */
/* -------------------------------------------------------------------------- */

.kb-design .kb-eyebrow {
	margin: 0;
	font-size: var(--kb-fs-xs);
	font-weight: var(--kb-fw-semibold);
	letter-spacing: var(--kb-tracking-wide);
	text-transform: uppercase;
	color: var(--kb-accent);
}

.kb-design .kb-title,
.kb-design .kb-title-sm,
.kb-design .kb-title-lg,
.kb-design .kb-display {
	margin: 0;
	font-family: var(--kb-font-display);
	font-weight: var(--kb-fw-bold);
	letter-spacing: var(--kb-tracking-tight);
	line-height: var(--kb-lh-tight);
	color: var(--kb-text);
	text-wrap: balance;
}

.kb-design .kb-display {
	font-size: var(--kb-fs-3xl);
}

.kb-design .kb-title-lg {
	font-size: var(--kb-fs-2xl);
}

.kb-design .kb-title {
	font-size: var(--kb-fs-xl);
}

.kb-design .kb-title-sm {
	font-size: var(--kb-fs-lg);
	line-height: var(--kb-lh-snug);
}

.kb-design .kb-lead {
	margin: 0;
	font-size: var(--kb-fs-md);
	color: var(--kb-text-muted);
	max-width: 40rem;
}

.kb-design .kb-text {
	margin: 0;
	color: var(--kb-text);
}

.kb-design .kb-text-muted {
	margin: 0;
	color: var(--kb-text-muted);
}

.kb-design .kb-code {
	font-family: var(--kb-font-mono);
	font-size: 0.92em;
	padding: 0.1em 0.35em;
	border-radius: var(--kb-radius-sm);
	background: rgba(220, 166, 0, 0.12);
	color: var(--kb-accent);
}

/* -------------------------------------------------------------------------- */
/* Section heading                                                            */
/* -------------------------------------------------------------------------- */

.kb-design .kb-section-heading {
	display: flex;
	flex-direction: column;
	gap: var(--kb-space-sm);
	max-width: 40rem;
	margin-bottom: var(--kb-space-xl);
}

.kb-design .kb-section-heading__rule {
	width: 2.5rem;
	height: 2px;
	background: var(--kb-accent);
	border: 0;
	margin: var(--kb-space-2xs) 0 0;
}

.kb-design .kb-section-heading--center {
	margin-inline: auto;
	text-align: center;
	align-items: center;
}

/* -------------------------------------------------------------------------- */
/* Buttons                                                                    */
/* -------------------------------------------------------------------------- */

.kb-design .kb-btn {
	--kb-btn-bg: var(--kb-accent);
	--kb-btn-fg: var(--kb-on-accent);
	--kb-btn-border: var(--kb-accent);
	--kb-btn-bg-hover: var(--kb-accent-hover);
	--kb-btn-fg-hover: var(--kb-on-accent);
	--kb-btn-border-hover: var(--kb-accent-hover);

	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: var(--kb-space-xs);
	min-height: var(--kb-btn-height);
	padding: 0.65rem var(--kb-btn-pad-x);
	border: var(--kb-border-width) solid var(--kb-btn-border);
	border-radius: var(--kb-radius-md);
	background: var(--kb-btn-bg);
	color: var(--kb-btn-fg);
	font-family: inherit;
	font-size: var(--kb-fs-sm);
	font-weight: var(--kb-fw-semibold);
	line-height: 1.2;
	text-decoration: none;
	cursor: pointer;
	transition:
		background-color var(--kb-duration) var(--kb-ease),
		border-color var(--kb-duration) var(--kb-ease),
		color var(--kb-duration) var(--kb-ease),
		transform var(--kb-duration) var(--kb-ease);
}

.kb-design .kb-btn:hover,
.kb-design .kb-btn:focus-visible {
	background: var(--kb-btn-bg-hover);
	border-color: var(--kb-btn-border-hover);
	color: var(--kb-btn-fg-hover);
	text-decoration: none;
}

.kb-design .kb-btn:active {
	transform: translateY(1px);
}

.kb-design .kb-btn:disabled,
.kb-design .kb-btn[aria-disabled="true"] {
	opacity: 0.5;
	cursor: not-allowed;
	transform: none;
	pointer-events: none;
}

.kb-design .kb-btn--secondary {
	--kb-btn-bg: transparent;
	--kb-btn-fg: var(--kb-text);
	--kb-btn-border: var(--kb-border);
	--kb-btn-bg-hover: rgba(245, 245, 240, 0.06);
	--kb-btn-fg-hover: var(--kb-text);
	--kb-btn-border-hover: var(--kb-accent);
}

.kb-design .kb-btn--text {
	--kb-btn-bg: transparent;
	--kb-btn-fg: var(--kb-accent);
	--kb-btn-border: transparent;
	--kb-btn-bg-hover: transparent;
	--kb-btn-fg-hover: var(--kb-accent-hover);
	--kb-btn-border-hover: transparent;
	min-height: auto;
	padding: 0.25rem 0;
	border-radius: 0;
	text-decoration: underline;
	text-underline-offset: 0.18em;
}

.kb-design .kb-theme-light .kb-btn--secondary {
	--kb-btn-bg-hover: rgba(12, 22, 40, 0.04);
}

/* -------------------------------------------------------------------------- */
/* Badges                                                                     */
/* -------------------------------------------------------------------------- */

.kb-design .kb-badge {
	display: inline-flex;
	align-items: center;
	gap: 0.35rem;
	padding: 0.2rem 0.55rem;
	border-radius: var(--kb-radius-sm);
	border: var(--kb-border-width) solid var(--kb-border);
	background: rgba(220, 166, 0, 0.12);
	color: var(--kb-accent);
	font-size: var(--kb-fs-xs);
	font-weight: var(--kb-fw-semibold);
	letter-spacing: 0.04em;
	text-transform: uppercase;
	line-height: 1.4;
}

.kb-design .kb-badge--neutral {
	background: rgba(245, 245, 240, 0.06);
	color: var(--kb-text-muted);
}

.kb-design .kb-theme-light .kb-badge--neutral {
	background: rgba(21, 25, 31, 0.05);
}

/* -------------------------------------------------------------------------- */
/* Cards                                                                      */
/* -------------------------------------------------------------------------- */

.kb-design .kb-card {
	display: flex;
	flex-direction: column;
	gap: var(--kb-space-md);
	height: 100%;
	padding: var(--kb-space-lg);
	border: var(--kb-border-width) solid var(--kb-border);
	border-radius: var(--kb-radius-lg);
	background: var(--kb-bg-elevated);
	box-shadow: var(--kb-shadow-sm);
}

.kb-design .kb-card__title {
	margin: 0;
	font-size: var(--kb-fs-md);
	font-weight: var(--kb-fw-semibold);
	line-height: var(--kb-lh-snug);
	color: var(--kb-text);
}

.kb-design .kb-card__body {
	margin: 0;
	color: var(--kb-text-muted);
	flex: 1;
}

.kb-design .kb-card__meta {
	margin: 0;
	font-size: var(--kb-fs-xs);
	color: var(--kb-text-muted);
}

.kb-design .kb-card--interactive {
	transition:
		border-color var(--kb-duration) var(--kb-ease),
		transform var(--kb-duration) var(--kb-ease),
		box-shadow var(--kb-duration) var(--kb-ease);
}

.kb-design a.kb-card--interactive {
	text-decoration: none;
	color: inherit;
}

.kb-design a.kb-card--interactive:hover,
.kb-design a.kb-card--interactive:focus-visible {
	border-color: rgba(220, 166, 0, 0.45);
	box-shadow: var(--kb-shadow-md);
	transform: translateY(-2px);
	color: inherit;
}

/* Media card */
.kb-design .kb-media-card {
	display: flex;
	flex-direction: column;
	height: 100%;
	overflow: hidden;
	border: var(--kb-border-width) solid var(--kb-border);
	border-radius: var(--kb-radius-lg);
	background: var(--kb-bg-elevated);
	box-shadow: var(--kb-shadow-sm);
}

.kb-design .kb-media-card__media {
	aspect-ratio: var(--kb-media-ratio);
	background: var(--kb-color-charcoal);
	overflow: hidden;
}

.kb-design .kb-media-card__media img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.kb-design .kb-media-card__body {
	display: flex;
	flex-direction: column;
	gap: var(--kb-space-sm);
	padding: var(--kb-space-lg);
	flex: 1;
}

.kb-design .kb-media-card__title {
	margin: 0;
	font-size: var(--kb-fs-md);
	font-weight: var(--kb-fw-semibold);
	color: var(--kb-text);
}

.kb-design .kb-media-card__text {
	margin: 0;
	color: var(--kb-text-muted);
}

/* -------------------------------------------------------------------------- */
/* Quote                                                                      */
/* -------------------------------------------------------------------------- */

.kb-design .kb-quote {
	margin: 0;
	padding: var(--kb-space-xl);
	border-left: 3px solid var(--kb-accent);
	border-radius: 0 var(--kb-radius-lg) var(--kb-radius-lg) 0;
	background: var(--kb-bg-elevated);
}

.kb-design .kb-quote__text {
	margin: 0 0 var(--kb-space-md);
	font-size: var(--kb-fs-md);
	font-weight: var(--kb-fw-medium);
	line-height: var(--kb-lh-snug);
	color: var(--kb-text);
}

.kb-design .kb-quote__cite {
	display: block;
	font-style: normal;
	font-size: var(--kb-fs-sm);
	color: var(--kb-text-muted);
}

.kb-design .kb-quote__cite strong {
	color: var(--kb-text);
	font-weight: var(--kb-fw-semibold);
}

/* -------------------------------------------------------------------------- */
/* Stat panel                                                                 */
/* -------------------------------------------------------------------------- */

.kb-design .kb-stat {
	display: flex;
	flex-direction: column;
	gap: var(--kb-space-xs);
	padding: var(--kb-space-lg);
	border: var(--kb-border-width) solid var(--kb-border);
	border-radius: var(--kb-radius-lg);
	background: var(--kb-bg-elevated);
}

.kb-design .kb-stat__value {
	margin: 0;
	font-family: var(--kb-font-display);
	font-size: var(--kb-fs-2xl);
	font-weight: var(--kb-fw-bold);
	letter-spacing: var(--kb-tracking-tight);
	line-height: 1;
	color: var(--kb-accent);
}

.kb-design .kb-stat__label {
	margin: 0;
	font-size: var(--kb-fs-sm);
	font-weight: var(--kb-fw-semibold);
	color: var(--kb-text);
}

.kb-design .kb-stat__detail {
	margin: 0;
	font-size: var(--kb-fs-sm);
	color: var(--kb-text-muted);
}

/* -------------------------------------------------------------------------- */
/* Design preview chrome (demo page only)                                     */
/* -------------------------------------------------------------------------- */

.kb-design .kb-preview-hero {
	padding-block: clamp(3.5rem, 8vw, 6rem);
	background:
		radial-gradient(ellipse 80% 60% at 100% 0%, rgba(220, 166, 0, 0.12), transparent 55%),
		var(--kb-color-navy);
}

.kb-design .kb-preview-swatch-row {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(7.5rem, 1fr));
	gap: var(--kb-space-md);
}

.kb-design .kb-preview-swatch {
	border: var(--kb-border-width) solid var(--kb-border);
	border-radius: var(--kb-radius-md);
	overflow: hidden;
	background: var(--kb-bg-elevated);
}

.kb-design .kb-preview-swatch__chip {
	height: 4rem;
}

.kb-design .kb-preview-swatch__meta {
	padding: var(--kb-space-sm);
	font-size: var(--kb-fs-xs);
}

.kb-design .kb-preview-swatch__meta code {
	font-family: var(--kb-font-mono);
	color: var(--kb-text-muted);
}

.kb-design .kb-preview-note {
	padding: var(--kb-space-md) var(--kb-space-lg);
	border: var(--kb-border-width) solid rgba(220, 166, 0, 0.35);
	border-radius: var(--kb-radius-md);
	background: rgba(220, 166, 0, 0.08);
	color: var(--kb-text-muted);
	font-size: var(--kb-fs-sm);
}

.kb-design .kb-preview-note strong {
	color: var(--kb-text);
}

/* Placeholder media for demos without local images */
.kb-design .kb-media-placeholder {
	width: 100%;
	height: 100%;
	display: grid;
	place-items: center;
	background:
		linear-gradient(135deg, rgba(220, 166, 0, 0.18), transparent 50%),
		var(--kb-color-surface-dark);
	color: var(--kb-text-muted);
	font-size: var(--kb-fs-sm);
	font-weight: var(--kb-fw-medium);
}