/* Basic theme colors */
:root {
	--bg-main: #05060a;
	--bg-panel: #0d0f16;
	--border-soft: rgba(255, 255, 255, 0.08);
	--accent: #4f8cff;
	--accent-soft: rgba(79, 140, 255, 0.16);
	--text-main: #f5f5f7;
	--text-muted: #a0a3ad;
	--radius-xl: 18px;
	--radius-pill: 999px;
}

* {
	box-sizing: border-box;
}

html,
body {
	margin: 0;
	padding: 0;
	height: 100%;
	font-family:
		system-ui,
		-apple-system,
		BlinkMacSystemFont,
		"Segoe UI",
		sans-serif;
	background: #05060a;
	color: var(--text-main);
}

/* Center the main shell */
body {
	display: flex;
	align-items: stretch;
	justify-content: center;
}

/* Top-level layout */
.page {
	flex: 1;
	display: flex;
	min-height: 100vh;
	padding: 16px;
}

/* Main card / shell */
.shell {
	position: relative;
	flex: 1 1 auto;
	min-width: 0;
	border-radius: var(--radius-xl);
	background: linear-gradient(
		145deg,
		rgba(255, 255, 255, 0.03),
		rgba(0, 0, 0, 0.7)
	);
	border: 1px solid var(--border-soft);
	box-shadow: 0 18px 45px rgba(0, 0, 0, 0.45);
	overflow: hidden;
	display: flex;
	flex-direction: column;
}

/* Header / title bar */
.shell-header {
	padding: 10px 14px;
	display: flex;
	align-items: center;
	gap: 10px;
	border-bottom: 1px solid rgba(255, 255, 255, 0.06);
	background: rgba(7, 10, 20, 0.95);
}

/* Mac-style dots */
.shell-dots {
	display: flex;
	gap: 6px;
	margin-right: 6px;
}

.shell-dot {
	width: 10px;
	height: 10px;
	border-radius: 999px;
	background: rgba(255, 255, 255, 0.15);
}

.shell-dot:nth-child(1) {
	background: #ff5f57;
}
.shell-dot:nth-child(2) {
	background: #febc2e;
}
.shell-dot:nth-child(3) {
	background: #28c840;
}

/* Title block */
.shell-title-block {
	display: flex;
	flex-direction: column;
	gap: 2px;
	min-width: 0;
}

.shell-title-row {
	display: flex;
	align-items: baseline;
	gap: 8px;
	min-width: 0;
}

.shell-title {
	font-size: 0.95rem;
	font-weight: 600;
	white-space: nowrap;
}

.shell-pill {
	font-size: 0.7rem;
	padding: 2px 8px;
	border-radius: var(--radius-pill);
	border: 1px solid rgba(255, 255, 255, 0.18);
	background: rgba(255, 255, 255, 0.03);
	color: var(--text-muted);
}

.shell-subtitle {
	font-size: 0.78rem;
	color: var(--text-muted);
}

/* Spacer to push switcher to the right */
.shell-spacer {
	flex: 1 1 auto;
}

/* App switcher */
.switcher {
	display: inline-flex;
	border-radius: var(--radius-pill);
	padding: 2px;
	background: rgba(0, 0, 0, 0.5);
	border: 1px solid rgba(255, 255, 255, 0.16);
}

.switcher button {
	border: none;
	border-radius: var(--radius-pill);
	padding: 4px 12px;
	font-size: 0.8rem;
	background: transparent;
	color: var(--text-muted);
	cursor: pointer;
	white-space: nowrap;
	transition:
		background 0.15s ease,
		color 0.15s ease;
}

.switcher button:hover {
	background: rgba(255, 255, 255, 0.08);
	color: var(--text-main);
}

/* Main body: CheerpJ display + side panel */
.shell-body {
	position: relative;
	flex: 1 1 auto;
	min-height: 0;
	display: flex;
	overflow: hidden;
}

/* CheerpJ canvas target */
#container {
	flex: 1 1 auto;
	width: 100%;
	height: 100%;
}

/* Right-hand info panel */
.side-panel {
	width: 20%;
	max-width: 32%;
	padding: 10px 12px 12px;
	border-left: 1px solid rgba(255, 255, 255, 0.06);
	background: #0b0d16;
	display: flex;
	flex-direction: column;
	gap: 10px;
}

/* Side panel content */
.side-heading {
	font-size: 0.8rem;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.07em;
	color: var(--text-muted);
}

.step-list {
	list-style: none;
	padding: 0;
	margin: 0;
	display: flex;
	flex-direction: column;
	gap: 6px;
	font-size: 0.8rem;
	color: var(--text-muted);
}

.step-list li {
	display: flex;
	gap: 6px;
	align-items: flex-start;
}

.step-badge {
	flex-shrink: 0;
	width: 18px;
	height: 18px;
	border-radius: 999px;
	border: 1px solid rgba(255, 255, 255, 0.22);
	display: inline-flex;
	align-items: center;
	justify-content: center;
	font-size: 0.7rem;
	color: var(--text-main);
	background: rgba(0, 0, 0, 0.4);
}

.step-note {
	margin-top: 6px;
	padding-top: 6px;
	border-top: 1px dashed rgba(255, 255, 255, 0.08);
}

/* Hint box */
.hint {
	font-size: 0.75rem;
	color: var(--text-muted);
	border-radius: 10px;
	padding: 8px 9px;
	background: #080a12;
	border: 1px solid rgba(255, 255, 255, 0.08);
}

.hint code {
	font-family:
		ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
		"Courier New", monospace;
	font-size: 0.75rem;
	background: rgba(255, 255, 255, 0.06);
	padding: 1px 4px;
	border-radius: 4px;
}

/* Status bar at bottom of side panel */
.status {
	font-size: 0.75rem;
	margin-top: auto;
	padding-top: 6px;
	border-top: 1px solid rgba(255, 255, 255, 0.08);
	color: var(--text-muted);
	display: flex;
	justify-content: space-between;
	gap: 8px;
}

.status-dot {
	width: 8px;
	height: 8px;
	border-radius: 999px;
	background: #17c964;
}

.status-dot.busy {
	background: #febc2e;
	animation: pulse 1.1s ease-in-out infinite;
}

.status-text {
	display: flex;
	align-items: center;
	gap: 6px;
}

.status-app {
	text-align: right;
}

.status-app span {
	color: var(--text-main);
}

@keyframes pulse {
	0%,
	100% {
		opacity: 0.55;
	}
	50% {
		opacity: 1;
	}
}

/* Responsive: hide side panel on narrow screens */
@media (max-width: 900px) {
	.side-panel {
		display: none;
	}

	.shell {
		border-radius: 0;
	}

	.page {
		padding: 0;
	}
}