.paper-interactions {
	--pi-surface: #ffffff;
	--pi-panel: #f5f9f7;
	--pi-panel-strong: #edf5f1;
	--pi-ink: #1d3137;
	--pi-muted: #66777c;
	--pi-line: rgba(29, 49, 55, 0.14);
	--pi-accent: #278261;
	--pi-accent-soft: rgba(39, 130, 97, 0.1);
	--pi-cyan: #2d8795;
	--pi-violet: #7355a6;
	--pi-amber: #b56527;
	--pi-shadow: 0 1.1rem 3rem rgba(26, 48, 43, 0.08);
	color: var(--pi-ink);
	margin: 2rem 0;
}

.app-shell .paper-interactions {
	--pi-surface: rgba(14, 29, 47, 0.94);
	--pi-panel: rgba(20, 40, 61, 0.86);
	--pi-panel-strong: rgba(28, 52, 74, 0.96);
	--pi-ink: #edf6f5;
	--pi-muted: #9fb1bd;
	--pi-line: rgba(164, 198, 221, 0.2);
	--pi-accent: #8ae6b2;
	--pi-accent-soft: rgba(138, 230, 178, 0.1);
	--pi-cyan: #6ee7f2;
	--pi-violet: #b6a4ff;
	--pi-amber: #ffc978;
	--pi-shadow: 0 1.2rem 3.4rem rgba(1, 7, 15, 0.24);
}

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

.paper-interactions-header {
	align-items: end;
	display: flex;
	gap: 1.5rem;
	justify-content: space-between;
	margin: 0 0 1rem;
}

.paper-interactions-header > div {
	max-width: 38rem;
}

.paper-interactions-header h3 {
	color: var(--pi-ink);
	font-size: clamp(1.45rem, 2.5vw, 2rem);
	line-height: 1.1;
	margin: 0;
}

.paper-interactions-header > p {
	color: var(--pi-muted);
	font-size: 0.82rem;
	line-height: 1.55;
	margin: 0;
	max-width: 31rem;
}

.paper-interactions-grid {
	display: grid;
	gap: 1rem;
	grid-template-columns: minmax(0, 1fr);
	min-width: 0;
}

.pi-disclosure {
	background: var(--pi-surface);
	border: 1px solid var(--pi-line);
	border-radius: 0.72rem;
	box-shadow: var(--pi-shadow);
	min-width: 0;
	overflow: clip;
}

.pi-disclosure > summary {
	align-items: center;
	cursor: pointer;
	display: grid;
	gap: 0.18rem 1rem;
	grid-template-columns: minmax(0, 1fr) auto;
	list-style: none;
	padding: 1rem 3.3rem 1rem 1.15rem;
	position: relative;
}

.pi-disclosure > summary::-webkit-details-marker {
	display: none;
}

.pi-disclosure > summary::after {
	align-items: center;
	border: 1px solid var(--pi-line);
	border-radius: 50%;
	color: var(--pi-accent);
	content: "+";
	display: inline-flex;
	font: 500 0.88rem/1 "DM Mono", "SFMono-Regular", Consolas, monospace;
	height: 1.65rem;
	justify-content: center;
	position: absolute;
	right: 1rem;
	top: 50%;
	transform: translateY(-50%);
	width: 1.65rem;
}

.pi-disclosure[open] > summary {
	border-bottom: 1px solid var(--pi-line);
}

.pi-disclosure[open] > summary::after {
	content: "−";
}

.pi-disclosure > summary span {
	color: var(--pi-accent);
	font: 600 0.58rem/1.3 "DM Mono", "SFMono-Regular", Consolas, monospace;
	letter-spacing: 0.09em;
	text-transform: uppercase;
}

.pi-disclosure > summary strong {
	color: var(--pi-ink);
	font-family: "Newsreader", Georgia, serif;
	font-size: 1rem;
	font-weight: 600;
	grid-column: 1;
	line-height: 1.25;
}

.pi-disclosure > summary small {
	color: var(--pi-muted);
	font-size: 0.66rem;
	grid-column: 2;
	grid-row: 1 / span 2;
	line-height: 1.45;
	max-width: 24rem;
	padding-right: 0.6rem;
}

.pi-disclosure-quiet {
	box-shadow: none;
	opacity: 0.9;
}

.pi-disclosure-body {
	min-width: 0;
	padding: 0.75rem;
}

.pi-disclosure-body > .pi-card {
	box-shadow: none;
}

[data-paper-interaction] {
	min-width: 0;
}

.paper-interactions-noscript {
	background: var(--pi-panel);
	border: 1px solid var(--pi-line);
	border-radius: 0.55rem;
	color: var(--pi-muted);
	padding: 1rem;
}

.pi-card {
	background:
		radial-gradient(circle at 0 0, var(--pi-accent-soft), transparent 28rem),
		var(--pi-surface);
	border: 1px solid var(--pi-line);
	border-radius: 0.72rem;
	box-shadow: var(--pi-shadow);
	contain: layout paint;
	overflow: hidden;
}

.pi-card-header {
	align-items: stretch;
	border-bottom: 1px solid var(--pi-line);
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(11rem, 0.27fr);
	min-height: 10rem;
}

.pi-card-heading {
	padding: clamp(1.15rem, 2.5vw, 1.7rem);
}

.pi-kicker,
.pi-step-label {
	color: var(--pi-accent);
	font-family: "DM Mono", "SFMono-Regular", Consolas, monospace;
	font-size: 0.62rem;
	font-weight: 600;
	letter-spacing: 0.08em;
	margin: 0 0 0.48rem;
	text-transform: uppercase;
}

.pi-card-header h4 {
	color: var(--pi-ink);
	font-family: "Newsreader", Georgia, serif;
	font-size: clamp(1.35rem, 2.5vw, 2rem);
	font-weight: 600;
	letter-spacing: -0.02em;
	line-height: 1.08;
	margin: 0 0 0.55rem;
}

.pi-lede {
	color: var(--pi-muted);
	font-size: 0.78rem;
	line-height: 1.55;
	margin: 0;
	max-width: 58rem;
}

.pi-source-links {
	margin: 0.75rem 0 0;
}

.pi-source-links a {
	color: var(--pi-accent);
	font-family: "DM Mono", "SFMono-Regular", Consolas, monospace;
	font-size: 0.64rem;
	font-weight: 600;
	text-decoration: none;
}

.pi-source-figure {
	background: var(--pi-panel);
	border: 0;
	display: block;
	min-height: 10rem;
	overflow: hidden;
	position: relative;
}

.pi-source-figure::after {
	background: rgba(7, 18, 26, 0.76);
	border-radius: 999px;
	bottom: 0.65rem;
	color: #fff;
	content: "authentic figure ↗";
	font-family: "DM Mono", "SFMono-Regular", Consolas, monospace;
	font-size: 0.52rem;
	letter-spacing: 0.04em;
	padding: 0.32rem 0.48rem;
	position: absolute;
	right: 0.65rem;
}

.pi-source-figure img {
	height: 100%;
	inset: 0;
	object-fit: cover;
	position: absolute;
	transition: transform 300ms ease;
	width: 100%;
}

.pi-biolay .pi-source-figure img {
	background: #fff;
	object-fit: contain;
	padding: 0.35rem;
}

.pi-source-figure:hover img {
	transform: scale(1.025);
}

.pi-card-body {
	padding: clamp(1rem, 2.5vw, 1.5rem);
}

.pi-mugo-layout,
.pi-biolay-grid {
	display: grid;
	gap: 1rem;
	grid-template-columns: minmax(19rem, 0.82fr) minmax(22rem, 1.18fr);
}

.pi-control-panel,
.pi-route-panel,
.pi-pipeline-section,
.pi-reward-section,
.pi-metrics-section {
	background: var(--pi-panel);
	border: 1px solid var(--pi-line);
	border-radius: 0.55rem;
	min-width: 0;
	padding: 1rem;
}

.pi-control-heading {
	align-items: start;
	display: flex;
	gap: 1rem;
	justify-content: space-between;
}

.pi-control-heading h5 {
	color: var(--pi-ink);
	font-family: "Newsreader", Georgia, serif;
	font-size: 1.08rem;
	font-weight: 600;
	line-height: 1.2;
	margin: 0;
}

.pi-live-value {
	background: var(--pi-ink);
	border-radius: 999px;
	color: var(--pi-surface);
	flex: 0 0 auto;
	font-family: "DM Mono", "SFMono-Regular", Consolas, monospace;
	font-size: 0.7rem;
	font-variant-numeric: tabular-nums;
	font-weight: 600;
	padding: 0.36rem 0.58rem;
}

.app-shell .pi-live-value {
	background: var(--pi-accent);
	color: #092218;
}

.pi-formula,
.pi-st-path code,
.pi-pipeline-readout code {
	font-family: "DM Mono", "SFMono-Regular", Consolas, monospace;
	font-variant-numeric: tabular-nums;
}

.pi-formula-block {
	background: var(--pi-panel-strong);
	border: 1px solid var(--pi-line);
	border-radius: 0.4rem;
	color: var(--pi-ink);
	display: block;
	font-size: 0.66rem;
	line-height: 1.5;
	margin: 0.85rem 0;
	overflow-wrap: anywhere;
	padding: 0.6rem 0.7rem;
}

.pi-range-label {
	color: var(--pi-ink);
	display: block;
	font-size: 0.7rem;
	font-weight: 700;
	margin-bottom: 0.28rem;
}

.pi-range {
	accent-color: var(--pi-accent);
	cursor: ew-resize;
	display: block;
	margin: 0;
	width: 100%;
}

.pi-range-scale {
	color: var(--pi-muted);
	display: flex;
	font-family: "DM Mono", "SFMono-Regular", Consolas, monospace;
	font-size: 0.52rem;
	justify-content: space-between;
	margin-top: 0.15rem;
}

.pi-preset-row,
.pi-reward-legend,
.pi-mode-toggle {
	display: flex;
	flex-wrap: wrap;
	gap: 0.38rem;
	margin-top: 0.72rem;
}

.paper-interactions button {
	appearance: none;
	background: transparent;
	border: 1px solid var(--pi-line);
	border-radius: 0.35rem;
	box-shadow: none;
	color: var(--pi-muted);
	cursor: pointer;
	font: 600 0.6rem/1.2 "DM Mono", "SFMono-Regular", Consolas, monospace;
	height: auto;
	letter-spacing: 0;
	margin: 0;
	padding: 0.42rem 0.55rem;
	text-align: left;
	text-transform: none;
	transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.paper-interactions button:hover,
.paper-interactions button[aria-pressed="true"] {
	background: var(--pi-accent-soft);
	border-color: var(--pi-accent);
	color: var(--pi-ink);
}

.paper-interactions button:focus-visible,
.paper-interactions input:focus-visible,
.pi-source-figure:focus-visible {
	outline: 3px solid color-mix(in srgb, var(--pi-accent), transparent 48%);
	outline-offset: 2px;
}

.pi-candidate-list {
	display: grid;
	gap: 0.42rem;
	margin-top: 0.8rem;
}

.pi-candidate {
	align-items: center;
	display: grid;
	gap: 0.55rem;
	grid-template-columns: 5.4rem minmax(4rem, 1fr) 3.25rem;
}

.pi-candidate-id {
	display: flex;
	flex-direction: column;
}

.pi-candidate-id strong {
	color: var(--pi-ink);
	font-family: "DM Mono", "SFMono-Regular", Consolas, monospace;
	font-size: 0.66rem;
	line-height: 1.2;
}

.pi-candidate-id small {
	color: var(--pi-muted);
	font-size: 0.52rem;
}

.pi-probability-track,
.pi-entropy-track,
.pi-metric-track {
	background: color-mix(in srgb, var(--pi-ink), transparent 90%);
	border-radius: 999px;
	display: block;
	height: 0.4rem;
	overflow: hidden;
}

.pi-probability-track i,
.pi-entropy-track i,
.pi-metric-track i {
	background: var(--pi-cyan);
	border-radius: inherit;
	display: block;
	height: 100%;
	transition: width 280ms cubic-bezier(0.2, 0.8, 0.2, 1);
	width: 0;
}

.pi-candidate-violet .pi-probability-track i {
	background: var(--pi-violet);
}

.pi-candidate-green .pi-probability-track i,
.pi-entropy-track i {
	background: var(--pi-accent);
}

.pi-candidate-amber .pi-probability-track i {
	background: var(--pi-amber);
}

.pi-candidate.is-selected .pi-candidate-id strong {
	color: var(--pi-accent);
}

.pi-probability-value,
.pi-metric-value {
	color: var(--pi-ink);
	font-family: "DM Mono", "SFMono-Regular", Consolas, monospace;
	font-size: 0.62rem;
	font-variant-numeric: tabular-nums;
	font-weight: 600;
	text-align: right;
}

.pi-entropy {
	align-items: center;
	border-top: 1px solid var(--pi-line);
	display: grid;
	gap: 0.55rem;
	grid-template-columns: 6.5rem 1fr 2.5rem;
	margin-top: 0.75rem;
	padding-top: 0.65rem;
}

.pi-entropy > span:first-child {
	color: var(--pi-muted);
	font-size: 0.6rem;
}

.pi-entropy strong {
	font-family: "DM Mono", "SFMono-Regular", Consolas, monospace;
	font-size: 0.62rem;
	text-align: right;
}

.pi-control-summary,
.pi-reward-readout,
.pi-metrics-status {
	color: var(--pi-accent);
	display: block;
	font-size: 0.64rem;
	font-weight: 700;
	line-height: 1.4;
	margin-top: 0.65rem;
}

.pi-sequence {
	display: grid;
	gap: 0.23rem;
	grid-template-columns: repeat(12, minmax(0, 1fr));
	margin-top: 0.9rem;
}

.pi-sequence span {
	align-items: center;
	aspect-ratio: 1;
	background: var(--pi-panel-strong);
	border: 1px solid var(--pi-line);
	border-radius: 0.24rem;
	color: var(--pi-muted);
	display: flex;
	font: 600 0.62rem/1 "DM Mono", "SFMono-Regular", Consolas, monospace;
	justify-content: center;
}

.pi-sequence span.is-candidate {
	background: var(--pi-accent-soft);
	border-color: color-mix(in srgb, var(--pi-accent), transparent 52%);
	color: var(--pi-accent);
}

.pi-selected-variant {
	align-items: center;
	display: flex;
	justify-content: space-between;
	margin: 0.65rem 0 0;
}

.pi-selected-variant span {
	color: var(--pi-muted);
	font-size: 0.6rem;
}

.pi-selected-variant strong {
	color: var(--pi-accent);
	font: 600 0.64rem/1.3 "DM Mono", "SFMono-Regular", Consolas, monospace;
}

.pi-st-paths {
	align-items: stretch;
	display: grid;
	gap: 0.5rem;
	grid-template-columns: minmax(0, 1fr) auto minmax(8rem, 0.66fr);
	margin-top: 0.85rem;
}

.pi-st-path,
.pi-model-node {
	background: var(--pi-surface);
	border: 1px solid var(--pi-line);
	border-radius: 0.45rem;
	display: flex;
	flex-direction: column;
	justify-content: center;
	min-height: 5rem;
	padding: 0.65rem;
}

.pi-st-path strong,
.pi-model-node strong {
	color: var(--pi-ink);
	font-size: 0.7rem;
	line-height: 1.3;
}

.pi-st-path code {
	color: var(--pi-muted);
	font-size: 0.55rem;
	line-height: 1.45;
	margin-top: 0.35rem;
	overflow-wrap: anywhere;
}

.pi-path-tag,
.pi-model-node small {
	color: var(--pi-accent);
	font: 600 0.5rem/1.2 "DM Mono", "SFMono-Regular", Consolas, monospace;
	letter-spacing: 0.06em;
	margin-bottom: 0.25rem;
	text-transform: uppercase;
}

.pi-st-forward {
	border-left: 3px solid var(--pi-cyan);
}

.pi-st-backward {
	border-left: 3px solid var(--pi-violet);
}

.pi-route-arrow {
	align-items: center;
	color: var(--pi-accent);
	display: flex;
	font-weight: 800;
	justify-content: center;
}

.pi-caveat,
.pi-normalization-note {
	border-left: 2px solid var(--pi-accent);
	color: var(--pi-muted);
	font-size: 0.58rem;
	line-height: 1.55;
	margin: 0.8rem 0 0;
	padding-left: 0.6rem;
}

.pi-pipeline-section {
	margin-bottom: 1rem;
}

.pi-pipeline {
	display: grid;
	gap: 0.38rem;
	grid-template-columns: repeat(6, minmax(5.6rem, 1fr));
	margin-top: 0.85rem;
	overflow-x: auto;
	padding: 0 0 0.25rem;
	scrollbar-width: thin;
}

.paper-interactions .pi-pipeline-stage {
	min-height: 3.55rem;
	padding: 0.55rem;
	position: relative;
}

.paper-interactions .pi-pipeline-stage:not(:last-child)::after {
	color: var(--pi-accent);
	content: "→";
	position: absolute;
	right: -0.39rem;
	top: 1.22rem;
	z-index: 2;
}

.pi-pipeline-stage span {
	color: var(--pi-accent);
	display: block;
	font-size: 0.5rem;
	margin-bottom: 0.18rem;
}

.pi-pipeline-stage strong {
	display: block;
	font-size: 0.58rem;
	line-height: 1.25;
}

.pi-pipeline-readout {
	align-items: baseline;
	background: var(--pi-panel-strong);
	border: 1px solid var(--pi-line);
	border-radius: 0.4rem;
	display: grid;
	gap: 0.35rem 0.75rem;
	grid-template-columns: minmax(9rem, 0.4fr) minmax(0, 1fr);
	margin-top: 0.65rem;
	padding: 0.65rem 0.75rem;
}

.pi-pipeline-readout strong {
	color: var(--pi-ink);
	font-size: 0.68rem;
}

.pi-pipeline-readout span {
	color: var(--pi-muted);
	font-size: 0.62rem;
	line-height: 1.45;
}

.pi-pipeline-readout code {
	color: var(--pi-accent);
	font-size: 0.58rem;
	grid-column: 1 / -1;
	overflow-wrap: anywhere;
}

.pi-reward-formula {
	align-items: stretch;
	display: grid;
	gap: 0.35rem;
	grid-template-columns: auto repeat(3, minmax(0, 1fr));
	margin-top: 0.85rem;
}

.pi-reward-prefix {
	align-items: center;
	color: var(--pi-ink);
	display: flex;
	font: 600 0.7rem/1.3 "DM Mono", "SFMono-Regular", Consolas, monospace;
}

.paper-interactions .pi-reward-terms {
	font-size: 0.54rem;
	line-height: 1.45;
	padding: 0.52rem;
	text-align: center;
}

.pi-reward-section[data-active-branch="factuality"] [data-reward-branch="factuality"],
.pi-reward-section[data-active-branch="relevance"] [data-reward-branch="relevance"],
.pi-reward-section[data-active-branch="readability"] [data-reward-branch="readability"] {
	background: var(--pi-accent-soft);
	border-color: var(--pi-accent);
	color: var(--pi-ink);
}

.pi-normalization-note {
	border-left-color: var(--pi-line);
	margin-top: 0.6rem;
}

.pi-mode-toggle {
	background: var(--pi-panel-strong);
	border: 1px solid var(--pi-line);
	border-radius: 0.4rem;
	display: inline-flex;
	padding: 0.22rem;
}

.paper-interactions .pi-mode-button {
	border-color: transparent;
}

.paper-interactions .pi-mode-button[aria-pressed="true"] {
	background: var(--pi-surface);
	border-color: var(--pi-line);
	box-shadow: 0 0.2rem 0.8rem rgba(8, 25, 32, 0.08);
}

.pi-metric-grid {
	display: grid;
	gap: 0.58rem 0.7rem;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	margin-top: 0.8rem;
}

.pi-metric {
	background: var(--pi-surface);
	border: 1px solid var(--pi-line);
	border-radius: 0.4rem;
	padding: 0.55rem;
}

.pi-metric-meta {
	align-items: start;
	display: grid;
	gap: 0.05rem 0.4rem;
	grid-template-columns: 1fr auto;
}

.pi-metric-meta strong {
	color: var(--pi-ink);
	font-size: 0.62rem;
}

.pi-metric-meta small {
	color: var(--pi-muted);
	font-size: 0.48rem;
	grid-column: 1;
}

.pi-metric-value {
	grid-column: 2;
	grid-row: 1 / span 2;
}

.pi-metric-track {
	margin-top: 0.45rem;
}

.pi-metric-track i {
	background: var(--pi-violet);
}

.pi-metrics-section[data-metric-mode="rl"] .pi-metric-track i {
	background: var(--pi-accent);
}

.pi-metric-change {
	color: var(--pi-muted);
	display: block;
	font: 500 0.48rem/1.35 "DM Mono", "SFMono-Regular", Consolas, monospace;
	margin-top: 0.34rem;
	min-height: 1.35em;
}

@media (max-width: 1040px) {
	.pi-mugo-layout,
	.pi-biolay-grid {
		grid-template-columns: minmax(0, 1fr);
	}

	.pi-source-figure {
		min-width: 10rem;
	}
}

@media (max-width: 720px) {
	.paper-interactions-header {
		align-items: start;
		flex-direction: column;
		gap: 0.55rem;
	}

	.pi-card-header {
		grid-template-columns: 1fr;
	}

	.pi-disclosure > summary {
		display: block;
		padding-right: 3rem;
	}

	.pi-disclosure > summary strong,
	.pi-disclosure > summary small {
		display: block;
	}

	.pi-disclosure > summary small {
		margin-top: 0.25rem;
		max-width: none;
		padding-right: 0;
	}

	.pi-source-figure {
		min-height: 9rem;
	}

	.pi-st-paths {
		grid-template-columns: 1fr;
	}

	.pi-route-arrow {
		transform: rotate(90deg);
	}

	.pi-route-arrow-back {
		transform: rotate(-90deg);
	}

	.pi-pipeline-readout {
		grid-template-columns: 1fr;
	}

	.pi-pipeline-readout code {
		grid-column: auto;
	}

	.pi-reward-formula {
		grid-template-columns: 1fr;
	}

	.pi-reward-prefix {
		margin-bottom: -0.15rem;
	}
}

@media (max-width: 480px) {
	.pi-card-body,
	.pi-control-panel,
	.pi-route-panel,
	.pi-pipeline-section,
	.pi-reward-section,
	.pi-metrics-section {
		padding: 0.75rem;
	}

	.pi-candidate {
		grid-template-columns: 4.55rem minmax(3rem, 1fr) 2.8rem;
	}

	.pi-sequence {
		gap: 0.12rem;
	}

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

	.pi-pipeline {
		grid-template-columns: repeat(6, 6.5rem);
	}
}

@media (prefers-reduced-motion: reduce) {
	.paper-interactions *,
	.paper-interactions *::before,
	.paper-interactions *::after {
		scroll-behavior: auto !important;
		transition: none !important;
	}
}