* {
	box-sizing: border-box;
}

body {
	margin: 0;
	font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
	background: #0f1117;
	color: #f1f5f9;
}

.app {
	min-height: 100vh;
	display: flex;
	flex-direction: column;
}

.app__header {
	padding: 24px 32px;
	display: flex;
	justify-content: space-between;
	align-items: center;
	border-bottom: 1px solid #1f2430;
	background: #0b0d12;
}

.app__header h1 {
	margin: 0 0 6px;
	font-size: 24px;
}

.app__actions {
	display: flex;
	gap: 12px;
}

.btn {
	border: 1px solid #2a3243;
	background: #151a24;
	color: #e2e8f0;
	padding: 10px 16px;
	border-radius: 8px;
	cursor: pointer;
	transition: all 0.2s ease;
}

.btn:hover {
	border-color: #3b82f6;
	color: #ffffff;
}

.btn:active {
	transform: scale(0.98);
}

.btn--primary {
	background: linear-gradient(135deg, #2563eb, #4f46e5);
	border: none;
	color: #ffffff;
}

.app__main {
	display: grid;
	grid-template-columns: 340px 1fr;
	gap: 24px;
	padding: 24px 32px 32px;
}

.panel {
	background: #11151f;
	border: 1px solid #1e293b;
	border-radius: 16px;
	padding: 20px;
	display: flex;
	flex-direction: column;
	gap: 22px;
	height: fit-content;
}

.panel__section h2 {
	margin: 0 0 12px;
	font-size: 16px;
	color: #e2e8f0;
}

.panel__hint {
	margin: 0;
	color: #94a3b8;
	font-size: 13px;
}

.control {
	display: grid;
	grid-template-columns: 1fr auto;
	gap: 8px 12px;
	align-items: center;
	margin-bottom: 12px;
}

.control span {
	font-size: 13px;
	color: #cbd5f5;
}

.control input[type="range"] {
	width: 100%;
	grid-column: 1 / -1;
}

.control input[type="number"],
.control select {
	width: 100%;
	padding: 6px 8px;
	border-radius: 6px;
	border: 1px solid #2a3243;
	background: #0f1320;
	color: #f1f5f9;
	grid-column: 1 / -1;
}

.control .value {
	grid-column: 2;
	font-size: 12px;
	color: #94a3b8;
}

.control--checkbox {
	display: flex;
	align-items: center;
	gap: 10px;
}

.control-group {
	border: 1px solid #1f2a44;
	border-radius: 12px;
	padding: 10px 12px 2px;
	margin-bottom: 12px;
	background: #0f1626;
}

.control-group__title {
	display: block;
	font-size: 12px;
	color: #94a3b8;
	margin-bottom: 8px;
}

.control-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 8px;
	margin-bottom: 8px;
}

.control-grid label {
	display: flex;
	flex-direction: column;
	gap: 6px;
	font-size: 12px;
	color: #cbd5f5;
}

.control-grid input {
	padding: 6px 8px;
	border-radius: 6px;
	border: 1px solid #2a3243;
	background: #0f1320;
	color: #f1f5f9;
}

.control--checkbox input {
	transform: scale(1.1);
}

.viz {
	position: relative;
	background: #0f1320;
	border-radius: 20px;
	border: 1px solid #1e293b;
	padding: 16px;
	display: flex;
	flex-direction: column;
	gap: 12px;
}

#plot {
	width: 100%;
	height: auto;
	border-radius: 12px;
	border: 1px solid #1f2a44;
	background: #0a0f1a;
}

.viz__legend {
	display: flex;
	gap: 16px;
	font-size: 13px;
	color: #cbd5f5;
}

.viz__legend .dot {
	width: 10px;
	height: 10px;
	border-radius: 50%;
	display: inline-block;
	margin-right: 6px;
}

.dot--class0 {
	background: #f43f5e;
}

.dot--class1 {
	background: #38bdf8;
}


.viz__metrics {
	position: absolute;
	right: 24px;
	bottom: 24px;
	background: rgba(15, 23, 42, 0.85);
	padding: 10px 12px;
	border-radius: 10px;
	border: 1px solid rgba(59, 130, 246, 0.3);
	font-size: 12px;
	color: #e2e8f0;
	min-width: 160px;
}

.viz__metrics .note {
	margin-top: 6px;
	color: #fbbf24;
}

@media (max-width: 1100px) {
	.app__main {
		grid-template-columns: 1fr;
	}
}