:root {
	--haptic-primary: #4f46e5;
	--haptic-primary-dark: #3730a3;
	--haptic-accent: #06b6d4;
	--haptic-accent-dark: #0284c7;
	--haptic-danger: #ef4444;
	--haptic-danger-dark: #b91c1c;
	--haptic-success: #22c55e;
	--haptic-text: #1e1e2f;
	--haptic-text-muted: #6b7280;
	--haptic-border: #e5e7eb;
	--haptic-surface: #ffffff;
	--haptic-bg: #f4f5f7;
	--haptic-bg-deep: #eef2ff;
	--haptic-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
	--haptic-shadow-lg: 0 18px 40px -24px rgb(79 70 229 / 0.32);
	--haptic-radius: 16px;
	--haptic-radius-sm: 10px;
	--haptic-transition: 0.2s ease;
}

* {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
}

body {
	margin: 0;
	font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
	color: var(--haptic-text);
	background:
		radial-gradient(circle at top left, rgb(79 70 229 / 0.08), transparent 28%),
		linear-gradient(180deg, #fafbff 0%, #f4f5f7 100%);
}

a {
	color: inherit;
	text-decoration: none;
}

code {
	font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
	font-size: 0.92em;
	background: rgb(79 70 229 / 0.08);
	padding: 0.15rem 0.4rem;
	border-radius: 0.45rem;
	word-break: break-word;
}

.demo-shell {
	max-width: 1260px;
	margin: 0 auto;
	padding: 24px 16px 72px;
	display: flex;
	flex-direction: column;
	gap: 28px;
}

.demo-main {
	display: flex;
	flex-direction: column;
	gap: 28px;
}

.demo-section {
	display: flex;
	flex-direction: column;
	gap: 18px;
}

.demo-section__heading {
	max-width: 74ch;
}

.demo-section__heading h2 {
	margin: 0 0 12px;
	font-size: clamp(1.8rem, 3vw, 2.5rem);
	letter-spacing: -0.03em;
}

.demo-section__heading p {
	margin: 0;
	color: var(--haptic-text-muted);
	line-height: 1.7;
}

.demo-proof-grid,
.demo-feature-grid {
	display: grid;
	gap: 24px;
	grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.demo-eyebrow {
	margin: 0 0 12px;
	text-transform: uppercase;
	letter-spacing: 0.12em;
	font-size: 0.76rem;
	font-weight: 800;
	color: var(--haptic-primary);
}

.demo-hero {
	margin: 12px 0 0;
	padding: 30px 32px;
	background: linear-gradient(135deg, var(--haptic-primary) 0%, var(--haptic-accent) 100%);
	color: #fff;
	box-shadow: var(--haptic-shadow-lg);
}

.demo-hero .demo-eyebrow {
	color: rgb(255 255 255 / 0.82);
	margin-bottom: 10px;
}

.demo-hero__subtitle {
	max-width: 66ch;
	font-size: 1rem;
	line-height: 1.7;
	opacity: 0.92;
}

.demo-feature-card {
	height: 100%;
	transition: transform var(--haptic-transition), box-shadow var(--haptic-transition), border-color var(--haptic-transition);
}

.demo-feature-card:hover {
	transform: translateY(-3px);
	border-color: rgb(79 70 229 / 0.24);
	box-shadow: var(--haptic-shadow-lg);
}

.demo-feature-card__icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 42px;
	height: 42px;
	margin-bottom: 14px;
	border-radius: 12px;
	background: linear-gradient(135deg, rgb(79 70 229 / 0.14), rgb(6 182 212 / 0.16));
	font-size: 1.15rem;
}

.demo-feature-card h3 {
	margin: 0 0 10px;
	font-size: 1.04rem;
	letter-spacing: -0.02em;
}

.demo-feature-card p {
	margin: 0;
	color: var(--haptic-text-muted);
	line-height: 1.7;
}

.haptic-header {
	border-radius: var(--haptic-radius);
}

.haptic-header__inner {
	display: flex;
	align-items: flex-start;
	gap: 20px;
}

.haptic-header__icon {
	font-size: 44px;
	line-height: 1;
	flex-shrink: 0;
}

.haptic-header__title {
	margin: 0 0 6px;
	font-size: clamp(2.2rem, 4vw, 3.4rem);
	font-weight: 800;
	letter-spacing: -0.04em;
	color: #fff;
}

.haptic-header__subtitle {
	margin: 0;
}

.demo-cta-row {
	display: flex;
	flex-wrap: wrap;
	gap: 12px;
	margin-top: 22px;
}

.demo-intro-grid,
.demo-section--split {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 24px;
}

.demo-intro-card--accent {
	position: relative;
	overflow: hidden;
}

.demo-intro-card--accent::before {
	content: "";
	position: absolute;
	inset: 0;
	background: linear-gradient(135deg, rgb(79 70 229 / 0.04), rgb(6 182 212 / 0.06));
	pointer-events: none;
}

.demo-intro-card .haptic-card__body,
.demo-intro-card .haptic-card__header {
	position: relative;
	z-index: 1;
}

.demo-stat-grid,
.demo-class-grid,
.demo-target-grid {
	display: grid;
	gap: 14px;
}

.demo-stat-grid {
	grid-template-columns: repeat(3, minmax(0, 1fr));
}

.demo-stat-card,
.demo-class-card,
.demo-target-card {
	position: relative;
	background: linear-gradient(180deg, #fff 0%, #fafbff 100%);
	border: 1px solid var(--haptic-border);
	border-radius: 14px;
	padding: 14px;
	box-shadow: var(--haptic-shadow);
}

.demo-stat-card__value,
.demo-class-card strong,
.demo-target-card strong {
	display: block;
	font-size: 0.95rem;
	font-weight: 700;
	color: var(--haptic-text);
	margin-bottom: 6px;
}

.demo-stat-card p,
.demo-class-card span,
.demo-target-card span,
.demo-note,
.demo-checklist,
.demo-steps {
	margin: 0;
	color: var(--haptic-text-muted);
	line-height: 1.7;
}

.demo-checklist {
	padding-left: 18px;
	display: grid;
	gap: 10px;
}

.haptic-grid {
	display: grid;
	grid-template-columns: minmax(0, 1fr) 340px;
	gap: 24px;
	align-items: start;
}

.demo-main-column,
.demo-sidebar-column {
	display: flex;
	flex-direction: column;
	gap: 24px;
}

.haptic-col--sidebar {
	align-self: start;
}

@media (min-width: 901px) {
	.haptic-col--sidebar {
		position: sticky;
		top: 24px;
	}
}

.haptic-card {
	background: var(--haptic-surface);
	border: 1px solid var(--haptic-border);
	border-radius: var(--haptic-radius);
	box-shadow: var(--haptic-shadow);
	overflow: hidden;
}

.haptic-card__header {
	padding: 16px 24px;
	border-bottom: 1px solid var(--haptic-border);
	background: linear-gradient(180deg, #fff 0%, #fafbff 100%);
}

.haptic-card__body {
	padding: 24px;
}

.haptic-card--compact .haptic-card__header {
	padding: 14px 18px;
}

.haptic-card--compact .haptic-card__body {
	padding: 18px;
}

.haptic-card--tools .haptic-card__body {
	display: flex;
	flex-direction: column;
	gap: 0;
}

.haptic-card__title {
	margin: 0 0 4px;
	font-size: 1rem;
	font-weight: 700;
	display: flex;
	align-items: center;
	gap: 8px;
	color: var(--haptic-text);
}

.haptic-card__desc {
	margin: 0;
	font-size: 0.9rem;
	color: var(--haptic-text-muted);
	line-height: 1.6;
}

.haptic-icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 24px;
	height: 24px;
	border-radius: 999px;
	font-size: 0.95rem;
	background: rgb(79 70 229 / 0.1);
}

.demo-stack {
	display: grid;
	gap: 18px;
}

.haptic-field {
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.haptic-field--grow {
	flex: 1 1 auto;
	min-width: 0;
}

.haptic-field--preset {
	flex: 0 0 220px;
}

.haptic-field--class-preview {
	flex: 0 1 280px;
	min-width: 220px;
}

.haptic-field--custom {
	flex: 1 1 180px;
}

.haptic-field--test {
	flex: 0 0 44px;
	margin-left: 4px;
}

.haptic-field__label {
	font-size: 0.78rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.05em;
	color: var(--haptic-text-muted);
}

.haptic-field__help,
.haptic-field__meta,
.demo-screenshot-caption {
	margin: 0;
	font-size: 0.9rem;
	color: var(--haptic-text-muted);
	line-height: 1.7;
}

.haptic-field__meta {
	font-size: 0.82rem;
	padding-left: 2px;
}

.haptic-sidebar-actions {
	display: flex;
	width: 100%;
	margin-top: 16px;
}

.haptic-sidebar-actions--save {
	margin-top: 0;
}

.haptic-input,
.haptic-select {
	width: 100%;
	padding: 10px 12px;
	font: inherit;
	color: var(--haptic-text);
	background: var(--haptic-surface);
	border: 1px solid var(--haptic-border);
	border-radius: var(--haptic-radius-sm);
	transition: border-color var(--haptic-transition), box-shadow var(--haptic-transition), transform var(--haptic-transition);
	box-sizing: border-box;
}

.haptic-input:focus,
.haptic-select:focus {
	outline: none;
	border-color: var(--haptic-primary);
	box-shadow: 0 0 0 4px rgb(79 70 229 / 0.14);
}

.haptic-rule__class-preview[readonly] {
	background: #f8fafc;
	font-family: Consolas, "SFMono-Regular", Menlo, monospace;
	font-size: 0.84rem;
}

.haptic-field__input-wrap--prefix {
	display: flex;
	align-items: stretch;
}

.haptic-field__prefix {
	display: inline-flex;
	align-items: center;
	padding: 0 12px;
	border: 1px solid var(--haptic-border);
	border-right: none;
	border-radius: var(--haptic-radius-sm) 0 0 var(--haptic-radius-sm);
	background: var(--haptic-bg);
	font-weight: 700;
	color: var(--haptic-text-muted);
}

.haptic-field__input-wrap--prefix .haptic-input {
	border-radius: 0 var(--haptic-radius-sm) var(--haptic-radius-sm) 0;
}

.haptic-toggle {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	cursor: pointer;
	user-select: none;
}

.haptic-toggle input {
	position: absolute;
	opacity: 0;
	width: 0;
	height: 0;
}

.haptic-toggle__track {
	position: relative;
	width: 46px;
	height: 26px;
	border-radius: 999px;
	background: #d1d5db;
	transition: background var(--haptic-transition);
	flex-shrink: 0;
}

.haptic-toggle__track::after {
	content: "";
	position: absolute;
	top: 3px;
	left: 3px;
	width: 20px;
	height: 20px;
	border-radius: 50%;
	background: #fff;
	box-shadow: 0 1px 3px rgb(0 0 0 / 0.2);
	transition: transform var(--haptic-transition);
}

.haptic-toggle input:checked + .haptic-toggle__track {
	background: var(--haptic-primary);
}

.haptic-toggle input:checked + .haptic-toggle__track::after {
	transform: translateX(20px);
}

.haptic-toggle__label {
	font-size: 0.95rem;
	font-weight: 500;
}

.haptic-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	position: relative;
	overflow: hidden;
	padding: 11px 18px;
	border: 1px solid transparent;
	border-radius: var(--haptic-radius-sm);
	font: inherit;
	font-weight: 700;
	line-height: 1;
	cursor: pointer;
	text-decoration: none;
	transition: background var(--haptic-transition), border-color var(--haptic-transition), transform 0.1s ease, box-shadow var(--haptic-transition), color var(--haptic-transition);
	appearance: none;
}

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

.haptic-btn:active {
	transform: translateY(0);
}

.haptic-btn:focus-visible,
.demo-target-card:focus-visible {
	outline: 3px solid rgb(79 70 229 / 0.28);
	outline-offset: 2px;
}

.haptic-btn--primary {
	background: linear-gradient(135deg, var(--haptic-primary) 0%, var(--haptic-accent) 100%);
	border-color: var(--haptic-primary);
	color: #fff;
	box-shadow: 0 8px 18px rgb(79 70 229 / 0.14);
}

.haptic-btn--primary:hover {
	background: linear-gradient(135deg, var(--haptic-primary-dark) 0%, var(--haptic-accent-dark) 100%);
	border-color: var(--haptic-primary-dark);
	color: #fff;
}

.haptic-btn--ghost {
	background: #fff;
	border-color: var(--haptic-border);
	color: var(--haptic-text);
	box-shadow: none;
}

.haptic-btn--ghost:hover {
	border-color: rgb(79 70 229 / 0.35);
	background: rgb(79 70 229 / 0.04);
	color: var(--haptic-text);
}

.haptic-btn--danger {
	background: #fff;
	border-color: #fecaca;
	color: var(--haptic-danger);
	box-shadow: none;
}

.haptic-btn--danger:hover {
	background: #fef2f2;
	border-color: #fca5a5;
	color: var(--haptic-danger-dark);
	box-shadow: none;
}

.haptic-btn--icon {
	padding: 10px;
	min-width: 42px;
	min-height: 42px;
}

.haptic-btn--full,
.haptic-save-btn {
	width: 100%;
}

.haptic-rules-list {
	display: flex;
	flex-direction: column;
	gap: 12px;
}

.haptic-rules-empty {
	text-align: center;
	padding: 40px 20px;
	color: var(--haptic-text-muted);
	background: var(--haptic-bg);
	border: 1px dashed var(--haptic-border);
	border-radius: var(--haptic-radius-sm);
}

.haptic-rules-empty__icon {
	font-size: 2.5rem;
	display: block;
	margin-bottom: 8px;
}

.haptic-rules-actions {
	margin-top: 16px;
	display: flex;
	justify-content: flex-start;
}

.haptic-rule {
	display: flex;
	align-items: flex-start;
	gap: 10px;
	background: var(--haptic-bg);
	border: 1px solid var(--haptic-border);
	border-radius: var(--haptic-radius-sm);
	padding: 14px 12px;
	transition: box-shadow var(--haptic-transition), border-color var(--haptic-transition), opacity var(--haptic-transition);
	position: relative;
}

.haptic-rule:hover {
	border-color: #c4c7ce;
	box-shadow: var(--haptic-shadow);
}

.haptic-rule--dragging {
	opacity: 0.55;
	border-color: var(--haptic-primary);
}

.haptic-rule__handle {
	cursor: grab;
	color: var(--haptic-text-muted);
	padding-top: 28px;
	flex-shrink: 0;
	opacity: 0.45;
	font-weight: 700;
	letter-spacing: -0.18em;
	transition: opacity var(--haptic-transition);
	user-select: none;
}

.haptic-rule:hover .haptic-rule__handle {
	opacity: 0.95;
}

.haptic-rule__fields {
	flex: 1 1 auto;
	min-width: 0;
	display: flex;
	flex-direction: column;
	gap: 10px;
}

.haptic-rule__row {
	display: flex;
	flex-wrap: wrap;
	gap: 14px;
	align-items: flex-end;
}

.haptic-rule__remove {
	padding-top: 22px;
	flex-shrink: 0;
}

.haptic-pattern-badge {
	display: inline-flex;
	align-items: center;
	gap: 3px;
	margin-top: 6px;
	flex-wrap: wrap;
	min-height: 14px;
}

.haptic-pattern-badge__pulse {
	display: inline-block;
	height: 14px;
	background: var(--haptic-primary);
	border-radius: 999px;
	opacity: 0.75;
	min-width: 4px;
}

.haptic-pattern-badge__pause {
	background: transparent;
	border: 1px dashed rgb(79 70 229 / 0.24);
	opacity: 1;
}

.haptic-hidden {
	display: none !important;
}

.haptic-invisible {
	opacity: 0;
	pointer-events: none;
}

.haptic-panel-section + .haptic-panel-section {
	margin-top: 20px;
	padding-top: 20px;
	border-top: 1px solid var(--haptic-border);
}

.haptic-debug-preview {
	display: none;
	margin-top: 16px;
	padding: 14px;
	background: var(--haptic-bg);
	border-radius: var(--haptic-radius-sm);
	border: 1px dashed var(--haptic-accent);
	overflow: hidden;
	position: relative;
}

.haptic-debug-preview.is-visible {
	display: block;
}

.haptic-ripple-demo {
	display: flex;
	align-items: center;
	gap: 12px;
	font-size: 0.83rem;
	color: var(--haptic-text-muted);
}

.haptic-ripple-demo__circle {
	width: 36px;
	height: 36px;
	border-radius: 50%;
	background: var(--haptic-accent);
	opacity: 0.5;
	flex-shrink: 0;
	animation: haptic-ripple-pulse 1.6s ease-in-out infinite;
}

.haptic-tester-status {
	margin-top: 10px;
	font-size: 0.82rem;
	min-height: 20px;
	padding: 0 4px;
	transition: opacity var(--haptic-transition);
}

.haptic-tester-status.is-success {
	color: var(--haptic-success);
}

.haptic-tester-status.is-error {
	color: var(--haptic-danger);
}

.haptic-tester-status.is-info {
	color: var(--haptic-accent-dark);
}

.demo-status {
	min-height: 64px;
	padding: 14px;
	border-radius: var(--haptic-radius-sm);
	background: var(--haptic-bg);
	border: 1px solid var(--haptic-border);
	color: var(--haptic-text-muted);
	line-height: 1.7;
}

.demo-status.is-success {
	border-color: rgb(34 197 94 / 0.35);
	background: rgb(34 197 94 / 0.08);
	color: #166534;
}

.demo-status.is-info {
	border-color: rgb(6 182 212 / 0.3);
	background: rgb(6 182 212 / 0.08);
	color: #155e75;
}

.demo-status.is-error {
	border-color: rgb(239 68 68 / 0.28);
	background: rgb(239 68 68 / 0.08);
	color: #991b1b;
}

.demo-target-grid {
	grid-template-columns: repeat(2, minmax(0, 1fr));
}

.demo-target-card {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	gap: 4px;
	font: inherit;
	text-align: left;
	cursor: pointer;
	text-decoration: none;
	color: var(--haptic-text);
	overflow: hidden;
}

.demo-target-card:hover {
	border-color: rgb(79 70 229 / 0.3);
	background: linear-gradient(180deg, #fff 0%, #f5f7ff 100%);
}

.demo-target-card--link {
	text-decoration: none;
}

.demo-target-card.is-ripple::after,
.haptic-debug-preview.is-ripple::after,
.haptic-btn.is-ripple::after {
	content: "";
	position: absolute;
	inset: -12px;
	border: 2px solid rgb(6 182 212 / 0.65);
	border-radius: inherit;
	animation: demo-ripple 0.7s ease-out;
	pointer-events: none;
}

.demo-code-panel {
	padding: 16px;
	border-radius: var(--haptic-radius-sm);
	border: 1px solid var(--haptic-border);
	background: linear-gradient(180deg, #fff 0%, #f9faff 100%);
}

.demo-code-panel__label {
	margin: 0 0 10px;
	font-size: 0.8rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.05em;
	color: var(--haptic-text-muted);
}

.demo-code-panel code {
	display: block;
	padding: 12px;
	line-height: 1.6;
	background: rgb(79 70 229 / 0.06);
}

.demo-screenshot-card {
	height: 100%;
}

.demo-screenshot-figure {
	display: grid;
	gap: 14px;
	margin: 0;
}

.demo-screenshot-image {
	display: block;
	width: 100%;
	height: auto;
	border-radius: 18px;
	border: 1px solid rgb(79 70 229 / 0.14);
	background: linear-gradient(135deg, rgb(79 70 229 / 0.08), rgb(6 182 212 / 0.06)), #fff;
	box-shadow: var(--haptic-shadow-lg);
}

.demo-steps {
	padding-left: 20px;
	display: grid;
	gap: 12px;
}

.demo-note-panel,
.demo-platform-item {
	padding: 14px 16px;
	border-radius: 14px;
	border: 1px solid var(--haptic-border);
	background: linear-gradient(180deg, #fff 0%, #fafbff 100%);
	color: var(--haptic-text-muted);
	line-height: 1.65;
}

.demo-note-panel {
	display: grid;
	gap: 6px;
	background: linear-gradient(135deg, rgb(79 70 229 / 0.06), rgb(6 182 212 / 0.08));
	border-color: rgb(79 70 229 / 0.12);
}

.demo-note-panel strong,
.demo-platform-item strong {
	color: var(--haptic-text);
}

.demo-platform-list {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 12px;
}

.demo-platform-item {
	display: grid;
	gap: 4px;
}

.demo-usecase-list {
	margin: 0;
	padding-left: 18px;
	display: grid;
	gap: 10px;
	color: var(--haptic-text-muted);
	line-height: 1.65;
}

.demo-class-grid {
	grid-template-columns: 1fr;
}

@keyframes demo-ripple {
	from {
		opacity: 0.85;
		transform: scale(0.92);
	}
	to {
		opacity: 0;
		transform: scale(1.08);
	}
}

@keyframes haptic-ripple-pulse {
	0%,
	100% {
		transform: scale(1);
		opacity: 0.5;
	}
	50% {
		transform: scale(1.4);
		opacity: 0.25;
	}
}

@media (max-width: 1180px) {
	.demo-feature-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 980px) {
	.demo-intro-grid,
	.demo-section--split,
	.haptic-grid {
		grid-template-columns: 1fr;
	}

	.demo-proof-grid,
	.demo-platform-list,
	.demo-stat-grid,
	.demo-target-grid {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 720px) {
	.demo-shell {
		padding-inline: 12px;
	}

	.haptic-header__inner {
		flex-direction: column;
	}

	.demo-stat-grid,
	.demo-target-grid,
	.demo-feature-grid,
	.demo-proof-grid,
	.demo-platform-list {
		grid-template-columns: 1fr;
	}

	.haptic-rule__row {
		flex-direction: column;
		align-items: stretch;
	}

	.haptic-field--preset,
	.haptic-field--class-preview,
	.haptic-field--custom {
		flex-basis: auto;
		min-width: 0;
	}

	.haptic-card__body,
	.haptic-card__header,
	.demo-hero {
		padding-inline: 18px;
	}

	.haptic-rule {
		padding-inline: 10px;
	}

	.haptic-rule__remove {
		padding-top: 0;
	}
}

/* --- Intensity slider --- */

.haptic-field--intensity {
	flex: 1 1 auto;
}

.haptic-field__range-wrap {
	display: flex;
	align-items: center;
	gap: 10px;
}

.haptic-range {
	flex: 1 1 auto;
	accent-color: var(--haptic-primary);
	height: 6px;
	cursor: pointer;
}

.haptic-range__value {
	flex: 0 0 auto;
	min-width: 3.2em;
	font-size: 0.82rem;
	font-weight: 700;
	color: var(--haptic-text-muted);
	text-align: right;
}

.haptic-rule__row--intensity {
	display: flex;
	align-items: flex-end;
	gap: 14px;
	padding-top: 4px;
}