/*
 * Gaming demo dashboard — layout + state styles.
 *
 * M2 laid down tokens and grid. M3 adds: Panel A traffic-light widget,
 * state-driven cross-fade on the reveal readout, and Panel C endpoint
 * reference cards.
 */

:root {
	/* Canvas */
	--demo-bg:         #0a0a0a;
	--demo-bg-panel:   #0f0f0f;
	--demo-bg-inset:   #060606;

	/* Accents */
	--demo-amber:      #d4a017;
	--demo-amber-dim:  #8a6810;
	--demo-green:      #00ff41;
	--demo-green-dim:  #009a27;
	--demo-red:        #ff2a2a;

	/* Text */
	--demo-text:       #e6e6e6;
	--demo-text-dim:   #9a9a9a;
	--demo-dim:        #6a6a6a;

	/* Texture */
	--demo-scanline:   rgba(212, 160, 23, 0.06);
	--demo-grid:       rgba(230, 230, 230, 0.03);

	/* Typography */
	--demo-font-data:  'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
	--demo-font-hud:   var(--demo-font-data);

	--demo-size-hash:  14px;
	--demo-size-body:  14px;
	--demo-size-label: 11px;
	--demo-size-value: 32px;

	--demo-tracking-hud: 0.12em;
	--demo-tracking-tab: 0.04em;
	--demo-line:         1.5;

	/* Layout */
	--demo-gutter:     24px;
	--demo-pad:        32px;
}

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

html, body {
	margin: 0;
	padding: 0;
	min-height: 100vh;
	background-color: var(--demo-bg);
	color: var(--demo-text);
	font-family: var(--demo-font-data);
	font-size: var(--demo-size-body);
	line-height: var(--demo-line);
}

body {
	background-image:
		repeating-linear-gradient(
			0deg,
			transparent 0,
			transparent 2px,
			var(--demo-scanline) 2px,
			var(--demo-scanline) 4px
		),
		linear-gradient(var(--demo-grid) 1px, transparent 1px),
		linear-gradient(90deg, var(--demo-grid) 1px, transparent 1px);
	background-size: auto, 24px 24px, 24px 24px;
	padding: var(--demo-pad);
	display: flex;
	flex-direction: column;
	gap: var(--demo-gutter);
}

/* ── HUD header ──────────────────────────────────────────────────────────── */

.hud-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 12px 16px;
	background: var(--demo-bg-panel);
	color: var(--demo-text);
}

.hud-header-left,
.hud-header-right {
	display: flex;
	align-items: center;
	gap: 12px;
}

.hud-brand,
.hud-label {
	font-size: var(--demo-size-label);
	letter-spacing: var(--demo-tracking-hud);
	text-transform: uppercase;
	color: var(--demo-amber);
}

.hud-sep {
	color: var(--demo-dim);
}

.hud-value {
	font-size: var(--demo-size-body);
	color: var(--demo-text);
}

.hud-pill {
	font-size: var(--demo-size-label);
	letter-spacing: var(--demo-tracking-hud);
	text-transform: uppercase;
	padding: 4px 8px;
	border: 1px solid var(--demo-amber-dim);
	color: var(--demo-amber);
}

.hud-pill[data-state="resolved"],
.hud-pill[data-state="anchored"] {
	border-color: var(--demo-green-dim);
	color: var(--demo-green);
}

.hud-pill[data-state="error"] {
	border-color: var(--demo-red);
	color: var(--demo-red);
}

/* ── Grid ───────────────────────────────────────────────────────────────── */

.demo-grid {
	flex: 1;
	display: grid;
	grid-template-columns: 2fr 1fr;
	grid-template-rows: auto auto;
	grid-template-areas:
		"panel-a panel-b"
		"panel-c panel-b";
	gap: var(--demo-gutter);
	min-height: 0;
}

.panel-a { grid-area: panel-a; }
.panel-b { grid-area: panel-b; }
.panel-c { grid-area: panel-c; }

.panel {
	background: var(--demo-bg-panel);
	padding: 24px;
	display: flex;
	flex-direction: column;
	gap: 16px;
	min-height: 0;
}

.panel-heading {
	margin: 0;
	font-size: var(--demo-size-label);
	letter-spacing: var(--demo-tracking-hud);
	text-transform: uppercase;
	color: var(--demo-amber);
	font-weight: 500;
}

.panel-body {
	display: flex;
	flex-direction: column;
	gap: 12px;
}

/* ── Traffic light (Panel A) ────────────────────────────────────────────── */

.traffic-light {
	display: flex;
	align-items: center;
	gap: 14px;
	padding: 14px 16px;
	background: var(--demo-bg-inset);
}

.tl-dot {
	width: 18px;
	height: 18px;
	border-radius: 50%;
	background: var(--demo-dim);
	box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05);
	transition: background-color 600ms ease-out, box-shadow 600ms ease-out;
}

.tl-label {
	margin-left: 8px;
	font-size: var(--demo-size-label);
	letter-spacing: var(--demo-tracking-hud);
	text-transform: uppercase;
	color: var(--demo-text-dim);
}

/* State: idle — all dim */
body[data-state="idle"] .tl-dot {
	background: var(--demo-dim);
}

/* State: committing — amber pulse on the committing dot */
body[data-state="committing"] .tl-dot[data-dot="committing"] {
	background: var(--demo-amber);
	animation: tl-pulse 1200ms ease-in-out infinite;
}
body[data-state="committing"] .tl-dot[data-dot="idle"] {
	background: var(--demo-amber-dim);
}

/* State: awaiting_reveal — amber steady */
body[data-state="awaiting_reveal"] .tl-dot[data-dot="committing"] {
	background: var(--demo-amber);
}
body[data-state="awaiting_reveal"] .tl-dot[data-dot="idle"] {
	background: var(--demo-amber-dim);
}

/* State: verified — amber → green cross-fade */
body[data-state="verified"] .tl-dot[data-dot="committing"] {
	background: var(--demo-amber);
}
body[data-state="verified"] .tl-dot[data-dot="verified"] {
	background: var(--demo-green);
}
body[data-state="verified"] .tl-dot[data-dot="idle"] {
	background: var(--demo-amber-dim);
}

/* State: anchored — all green */
body[data-state="anchored"] .tl-dot {
	background: var(--demo-green);
	box-shadow: inset 0 0 0 1px rgba(0, 255, 65, 0.12);
}

body[data-state="anchored"] .tl-label,
body[data-state="verified"] .tl-label {
	color: var(--demo-green);
}

body[data-state="committing"] .tl-label,
body[data-state="awaiting_reveal"] .tl-label {
	color: var(--demo-amber);
}

@keyframes tl-pulse {
	0%, 100% { opacity: 1; }
	50%      { opacity: 0.4; }
}

/* ── Readouts (Panel A) ─────────────────────────────────────────────────── */

.readout {
	display: flex;
	flex-direction: column;
	gap: 4px;
	padding: 12px;
	background: var(--demo-bg-inset);
}

.readout-label {
	font-size: var(--demo-size-label);
	letter-spacing: var(--demo-tracking-hud);
	text-transform: uppercase;
	color: var(--demo-text-dim);
}

.readout-value {
	font-family: var(--demo-font-data);
	font-size: var(--demo-size-hash);
	letter-spacing: var(--demo-tracking-tab);
	word-break: break-all;
	color: var(--demo-text);
	transition: color 600ms ease-out;
}

.readout-value[data-verified="true"] {
	color: var(--demo-green);
}

.outcome-badge {
	font-size: var(--demo-size-value);
	text-transform: uppercase;
	letter-spacing: var(--demo-tracking-hud);
}

body[data-state="verified"] .outcome-badge,
body[data-state="anchored"] .outcome-badge {
	color: var(--demo-green);
}

.readout-outcome {
	align-items: flex-start;
}

.readout-actions {
	flex-direction: row;
	align-items: center;
	gap: 16px;
}

.readout-hint {
	font-size: var(--demo-size-label);
	color: var(--demo-text-dim);
}

.flip-btn {
	font-family: var(--demo-font-data);
	font-size: var(--demo-size-label);
	letter-spacing: var(--demo-tracking-hud);
	text-transform: uppercase;
	background: transparent;
	color: var(--demo-amber);
	border: 1px solid var(--demo-amber);
	padding: 10px 18px;
	min-height: 44px;
	cursor: pointer;
}

.flip-btn:disabled {
	color: var(--demo-dim);
	border-color: var(--demo-dim);
	cursor: not-allowed;
}

.flip-btn:focus-visible {
	outline: 2px solid var(--demo-amber);
	outline-offset: 2px;
}

.flip-btn-ghost {
	display: inline-flex;
	align-items: center;
	text-decoration: none;
	color: var(--demo-green);
	border-color: var(--demo-green-dim);
}

.flip-btn-ghost:hover {
	color: var(--demo-green);
	border-color: var(--demo-green);
	background: rgba(0, 255, 65, 0.06);
}

.hud-qr {
	display: inline-flex;
	flex-direction: column;
	align-items: center;
	gap: 4px;
	margin-left: 12px;
	padding: 4px 6px 2px;
	border: 1px solid var(--demo-green-dim);
	background: rgba(0, 255, 65, 0.03);
	text-decoration: none;
	color: var(--demo-green);
}

.hud-qr img {
	display: block;
	width: 64px;
	height: 64px;
	image-rendering: pixelated;
}

.hud-qr-caption {
	font-family: var(--demo-font-data);
	font-size: 9px;
	letter-spacing: var(--demo-tracking-hud);
}

.hud-qr:hover {
	border-color: var(--demo-green);
}

/* ── Event stream (Panel B) ─────────────────────────────────────────────── */

.event-list {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: 8px;
	overflow-y: auto;
	min-height: 0;
}

.event-list li {
	padding: 10px 12px;
	background: var(--demo-bg-inset);
	font-size: var(--demo-size-body);
}

.event-empty {
	color: var(--demo-text-dim);
}

.event-row {
	display: flex;
	flex-direction: column;
	gap: 4px;
}

.event-row .event-meta {
	display: flex;
	gap: 10px;
	font-size: var(--demo-size-label);
	color: var(--demo-text-dim);
	letter-spacing: var(--demo-tracking-tab);
}

.event-row .event-type {
	text-transform: uppercase;
	letter-spacing: var(--demo-tracking-hud);
	color: var(--demo-amber);
}

.event-row[data-type="seed_verified"] .event-type,
.event-row[data-type="outcome_attested"] .event-type {
	color: var(--demo-green);
}

.event-row .event-text {
	color: var(--demo-text);
}

.event-row .event-anchor {
	font-size: var(--demo-size-label);
	color: var(--demo-text-dim);
	word-break: break-all;
}

/* Fade older events from text → text-dim starting at the 5th row */
.event-row:nth-child(n+5) .event-text {
	color: var(--demo-text-dim);
}
.event-row:nth-child(n+10) .event-text {
	color: var(--demo-dim);
}

/* ── Panel C — tier cards ───────────────────────────────────────────────── */

.tier-grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: var(--demo-gutter);
	min-height: 0;
}

.tier-card {
	display: flex;
	flex-direction: column;
	gap: 10px;
	padding: 16px;
	background: var(--demo-bg-inset);
	border-top: 2px solid var(--demo-amber-dim);
}

.tier-card.tier-b2b {
	border-top-color: var(--demo-green-dim);
}

.tier-card.tier-admin {
	border-top-color: var(--demo-red);
}

.tier-head {
	display: flex;
	flex-direction: column;
	gap: 4px;
}

.tier-badge {
	font-size: var(--demo-size-label);
	letter-spacing: var(--demo-tracking-hud);
	text-transform: uppercase;
	color: var(--demo-amber);
}

.tier-card.tier-b2b .tier-badge {
	color: var(--demo-green);
}

.tier-card.tier-admin .tier-badge {
	color: var(--demo-red);
}

.tier-title {
	margin: 0;
	font-size: var(--demo-size-body);
	font-weight: 500;
	letter-spacing: var(--demo-tracking-tab);
	color: var(--demo-text);
}

.tier-meta {
	display: grid;
	grid-template-columns: 70px 1fr;
	gap: 4px 12px;
	margin: 0;
}

.tier-meta dt {
	font-size: var(--demo-size-label);
	letter-spacing: var(--demo-tracking-hud);
	text-transform: uppercase;
	color: var(--demo-text-dim);
}

.tier-meta dd {
	margin: 0;
	font-size: var(--demo-size-label);
	color: var(--demo-text);
	word-break: break-word;
}

.tier-meta code {
	font-family: var(--demo-font-data);
	font-size: var(--demo-size-label);
	color: var(--demo-text);
}

.tier-sample {
	margin-top: 6px;
}

.tier-sample summary {
	cursor: pointer;
	font-size: var(--demo-size-label);
	letter-spacing: var(--demo-tracking-hud);
	text-transform: uppercase;
	color: var(--demo-text-dim);
	padding: 4px 0;
}

.tier-sample summary:hover {
	color: var(--demo-amber);
}

.tier-sample summary:focus-visible {
	outline: 2px solid var(--demo-amber);
	outline-offset: 2px;
}

.tier-sample pre {
	margin: 8px 0 0 0;
	padding: 10px;
	background: var(--demo-bg);
	font-family: var(--demo-font-data);
	font-size: 12px;
	color: var(--demo-text-dim);
	white-space: pre-wrap;
	word-break: break-word;
	overflow-x: auto;
}

/* ── Toast ──────────────────────────────────────────────────────────────── */

.toast {
	position: fixed;
	bottom: 24px;
	left: 50%;
	transform: translateX(-50%);
	background: var(--demo-bg-panel);
	border: 1px solid var(--demo-red);
	color: var(--demo-text);
	padding: 12px 16px;
	font-size: var(--demo-size-body);
	max-width: 560px;
	z-index: 10;
}

.toast[hidden] {
	display: none;
}

/* ── Reduced motion ─────────────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
	* {
		animation: none !important;
		transition: none !important;
	}
}