:root {
	--bg: #0f1115;
	--panel: #161a22;
	--panel-2: #1e232d;
	--text: #e6e9ef;
	--muted: #8a93a6;
	--accent: #4f9dff;
	--a: #4ade80;
	--b: #c084fc;
	--border: #262c38;
}

* {
	box-sizing: border-box;
}

body {
	margin: 0;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
	background: var(--bg);
	color: var(--text);
	line-height: 1.5;
}

header {
	padding: 24px;
	border-bottom: 1px solid var(--border);
	display: flex;
	align-items: center;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 12px;
}
header h1 {
	margin: 0;
	font-size: 20px;
}

nav {
	display: flex;
	gap: 8px;
	flex-wrap: wrap;
}
nav button {
	background: var(--panel);
	color: var(--text);
	border: 1px solid var(--border);
	padding: 8px 14px;
	border-radius: 8px;
	cursor: pointer;
	font-size: 14px;
}
nav button.active {
	background: var(--accent);
	border-color: var(--accent);
	color: #fff;
}

main {
	padding: 24px;
	max-width: 900px;
	margin: 0 auto;
}

.screen {
	display: none;
}
.screen.active {
	display: block;
}

h2 {
	margin-top: 0;
}
p.muted {
	color: var(--muted);
}

.cities {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 12px;
	margin-bottom: 24px;
}
.cities input {
	background: var(--panel);
	border: 1px solid var(--border);
	color: var(--text);
	padding: 10px 12px;
	border-radius: 8px;
	font-size: 16px;
	width: 100%;
}

.factor {
	background: var(--panel);
	border: 1px solid var(--border);
	border-radius: 12px;
	padding: 16px;
	margin-bottom: 12px;
}
.factor.unanswered {
	border-color: var(--accent);
	border-style: dashed;
}
.factor-head {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 12px;
	gap: 12px;
}
.factor-head strong {
	font-size: 16px;
}
.factor-head button {
	background: transparent;
	border: 1px solid var(--border);
	color: var(--muted);
	padding: 4px 10px;
	border-radius: 6px;
	cursor: pointer;
	font-size: 12px;
}
.factor-head button:hover {
	color: var(--a);
	border-color: var(--a);
}

.scale-labels {
	display: flex;
	justify-content: space-between;
	font-size: 13px;
	color: var(--muted);
	margin-bottom: 6px;
}
.scale-labels .a {
	color: var(--a);
}
.scale-labels .b {
	color: var(--b);
}

.range-label {
	text-align: center;
	color: var(--muted);
	font-size: 13px;
	margin-top: 8px;
	min-height: 18px;
}
.button-range {
	display: grid;
	grid-auto-flow: column;
	grid-auto-columns: 1fr;
	margin-top: 6px;
}
.button-range button {
	height: 40px;
	min-width: 0;
	padding: 0;
	background: var(--panel-2);
	border: 1px solid var(--border);
	border-left-width: 0;
	color: var(--muted);
	border-radius: 0;
	cursor: pointer;
	font-size: 13px;
	font-variant-numeric: tabular-nums;
	touch-action: pan-y;
	user-select: none;
	-webkit-user-select: none;
}
.button-range button:first-child {
	border-left-width: 1px;
	border-top-left-radius: 6px;
	border-bottom-left-radius: 6px;
}
.button-range button:last-child {
	border-top-right-radius: 6px;
	border-bottom-right-radius: 6px;
}
.button-range button:hover {
	color: var(--text);
	border-color: var(--muted);
}
.button-range button.selected {
	color: #fff;
	font-weight: 600;
}
.button-range button.selected.a-side {
	background: var(--a);
	border-color: var(--a);
}
.button-range button.selected.b-side {
	background: var(--b);
	border-color: var(--b);
}
.button-range button.selected.center {
	background: var(--muted);
	border-color: var(--muted);
}
.button-range button.selected:not(.a-side):not(.b-side):not(.center) {
	background: var(--accent);
	border-color: var(--accent);
}

.add-row {
	display: flex;
	gap: 8px;
	margin: 16px 0 24px;
}
.add-row input {
	flex: 1;
	background: var(--panel);
	border: 1px solid var(--border);
	color: var(--text);
	padding: 10px 12px;
	border-radius: 8px;
	font-size: 14px;
}

button.primary {
	background: var(--accent);
	border: none;
	color: #fff;
	padding: 10px 18px;
	border-radius: 8px;
	cursor: pointer;
	font-size: 14px;
	font-weight: 500;
}
button.primary:hover {
	filter: brightness(1.1);
}
button.primary:disabled {
	background: var(--panel-2);
	color: var(--muted);
	cursor: not-allowed;
	filter: none;
}

button.secondary {
	background: var(--panel-2);
	border: 1px solid var(--border);
	color: var(--text);
	padding: 10px 18px;
	border-radius: 8px;
	cursor: pointer;
	font-size: 14px;
}

.actions {
	display: flex;
	gap: 10px;
	flex-wrap: wrap;
	margin-top: 24px;
}

.weight-row {
	background: var(--panel);
	border: 1px solid var(--border);
	border-radius: 10px;
	padding: 12px 16px;
	margin-bottom: 8px;
}
.weight-head {
	display: flex;
	justify-content: space-between;
	align-items: baseline;
	gap: 12px;
}
.weight-row .name {
	font-weight: 500;
}
.weight-row .range-label {
	margin-top: 0;
	color: var(--accent);
	font-size: 14px;
}

.name-input {
	background: var(--panel);
	border: 1px solid var(--border);
	color: var(--text);
	padding: 10px 12px;
	border-radius: 8px;
	font-size: 14px;
	margin-bottom: 16px;
	width: 100%;
	max-width: 320px;
}

.rate-intro {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	flex-wrap: wrap;
	margin-bottom: 16px;
}
.rate-intro p {
	margin: 0;
}
.load-own {
	display: inline-block;
	background: var(--panel);
	border: 1px solid var(--border);
	color: var(--muted);
	padding: 8px 14px;
	border-radius: 8px;
	cursor: pointer;
	font-size: 13px;
}
.load-own:hover {
	border-color: var(--accent);
	color: var(--accent);
}

.file-drop {
	display: block;
	border: 2px dashed var(--border);
	border-radius: 12px;
	padding: 32px;
	text-align: center;
	color: var(--muted);
	cursor: pointer;
	margin-bottom: 16px;
}
.file-drop:hover {
	border-color: var(--accent);
	color: var(--accent);
}
.file-drop-hint {
	font-size: 12px;
	margin-top: 6px;
}

.visually-hidden {
	position: absolute;
	width: 1px;
	height: 1px;
	overflow: hidden;
	clip: rect(0 0 0 0);
	clip-path: inset(50%);
	white-space: nowrap;
	border: 0;
	margin: -1px;
	padding: 0;
}

.loaded-list {
	margin-bottom: 24px;
}
.loaded-item {
	background: var(--panel);
	border: 1px solid var(--border);
	border-radius: 8px;
	padding: 10px 14px;
	margin-bottom: 6px;
	display: flex;
	justify-content: space-between;
	align-items: center;
}
.loaded-item.disabled {
	opacity: 0.4;
}
.loaded-item input[type="checkbox"] {
	accent-color: var(--accent);
}
.loaded-item label {
	display: flex;
	align-items: center;
	gap: 10px;
	cursor: pointer;
	flex: 1;
}

.matchup {
	text-align: center;
	margin: 0 0 16px;
	font-size: 24px;
	font-weight: 600;
}
.matchup .a {
	color: var(--a);
}
.matchup .b {
	color: var(--b);
}

.result-summary {
	background: var(--panel);
	border: 1px solid var(--border);
	border-radius: 12px;
	padding: 24px;
	text-align: center;
	margin-bottom: 24px;
}
.result-summary .winner {
	font-size: 32px;
	font-weight: 700;
	margin: 12px 0;
}
.result-summary .totals {
	display: flex;
	justify-content: space-between;
	font-size: 13px;
}
.result-summary .totals .a {
	color: var(--a);
}
.result-summary .totals .b {
	color: var(--b);
}

.bar {
	background: var(--panel-2);
	border-radius: 8px;
	overflow: hidden;
	height: 32px;
	display: flex;
	margin-bottom: 8px;
}
.bar .a-side {
	background: var(--a);
}
.bar .b-side {
	background: var(--b);
}

.breakdown {
	display: grid;
	grid-template-columns: auto 1fr auto;
	column-gap: 16px;
	align-items: center;
}
.breakdown-row {
	display: contents;
}
.breakdown-row > * {
	padding: 10px 0;
	border-bottom: 1px solid var(--border);
}
.breakdown-row:last-child > * {
	border-bottom: none;
}

.breakdown-bar {
	background: var(--panel-2);
	border-radius: 6px;
	height: 20px;
	position: relative;
	overflow: hidden;
}
.breakdown-bar .fill {
	position: absolute;
	top: 0;
	bottom: 0;
	background: var(--a);
}
.breakdown-bar .fill.a {
	background: var(--a);
}
.breakdown-bar .fill.b {
	background: var(--b);
}
.breakdown-bar .center {
	position: absolute;
	top: 0;
	bottom: 0;
	left: 50%;
	width: 1px;
	background: var(--border);
}

.breakdown-score {
	font-variant-numeric: tabular-nums;
	color: var(--muted);
	font-size: 13px;
	min-width: 48px;
	text-align: right;
}

.empty {
	text-align: center;
	color: var(--muted);
	padding: 40px 20px;
}

@media (max-width: 600px) {
	.cities {
		grid-template-columns: 1fr;
	}
	.breakdown {
		grid-template-columns: 1fr;
	}
	.button-range button {
		font-size: 12px;
		height: 36px;
	}
}