#tdApp {
	--td-ink: #1f2937;
	--td-muted: #6b7280;
	--td-line: #e5e7eb;
	--td-bg: #ffffff;
	--td-soft: #f9fafb;
	--td-primary: #2563eb;
	--td-primary-hover: #1d4ed8;
	--td-add: #047857;
	--td-add-bg: #d1fae5;
	--td-del: #b91c1c;
	--td-del-bg: #fecaca;
	--td-radius: 0.5rem;
	color: var(--td-ink);
}

#tdApp .td-workspace {
	display: flex;
	flex-direction: column;
	gap: 1rem;
}

#tdApp .td-editors {
	display: grid;
	grid-template-columns: 1fr;
	gap: 0.75rem;
	align-items: stretch;
}

@media (min-width: 768px) {
	#tdApp .td-editors {
		grid-template-columns: 1fr auto 1fr;
		gap: 0.75rem;
	}
}

#tdApp .td-editor {
	min-width: 0;
	background: var(--td-bg);
	border: 1px solid var(--td-line);
	border-radius: var(--td-radius);
	overflow: hidden;
	transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

#tdApp .td-editor:focus-within {
	border-color: var(--td-primary);
}

#tdApp .td-editor-head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 0.75rem;
	padding: 0.75rem 1rem 0;
}

#tdApp .td-label {
	display: block;
	margin: 0;
	font-size: 0.875rem;
	font-weight: 600;
	color: #374151;
}

#tdApp .td-meta {
	margin: 0;
	font-size: 0.75rem;
	color: var(--td-muted);
	font-variant-numeric: tabular-nums;
}

#tdApp .td-textarea {
	width: 100%;
	min-height: 14rem;
	padding: 0.65rem 1rem 1rem;
	border: 0;
	background: transparent;
	color: var(--td-ink);
	font-size: 0.9375rem;
	line-height: 1.65;
	resize: vertical;
	font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
	outline: none;
}

#tdApp .td-textarea:focus {
	outline: none;
}

#tdApp .td-textarea::placeholder {
	color: #9ca3af;
}

#tdApp .td-swap-col {
	display: flex;
	align-items: center;
	justify-content: center;
}

@media (min-width: 768px) {
	#tdApp .td-swap-col {
		padding-top: 1.75rem;
	}
}

#tdApp .td-swap {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 2.5rem;
	height: 2.5rem;
	border-radius: 999px;
	border: 1px solid var(--td-line);
	background: var(--td-bg);
	color: #4b5563;
	cursor: pointer;
	transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

#tdApp .td-swap:hover {
	background: var(--td-soft);
	border-color: #cbd5e1;
	color: var(--td-ink);
}

#tdApp .td-swap:focus-visible {
	outline: 2px solid var(--td-primary);
	outline-offset: 2px;
}

@media (max-width: 767px) {
	#tdApp .td-swap svg {
		transform: rotate(90deg);
	}
}

#tdApp .td-toolbar {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 0.75rem 1rem;
}

#tdApp .td-legend {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 0.85rem 1.1rem;
	font-size: 0.8125rem;
	color: var(--td-muted);
}

#tdApp .td-legend-item {
	display: inline-flex;
	align-items: center;
	gap: 0.35rem;
}

#tdApp .td-dot {
	display: inline-block;
	width: 0.55rem;
	height: 0.55rem;
	border-radius: 999px;
}

#tdApp .td-dot-same {
	background: #9ca3af;
}

#tdApp .td-dot-del {
	background: var(--td-del);
}

#tdApp .td-dot-add {
	background: var(--td-add);
}

#tdApp .td-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
}

#tdApp .td-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-height: 2.4rem;
	padding: 0 1rem;
	border-radius: 0.4rem;
	border: 1px solid var(--td-line);
	background: var(--td-bg);
	color: #374151;
	font-size: 0.875rem;
	font-weight: 600;
	cursor: pointer;
	transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

#tdApp .td-btn:hover {
	background: var(--td-soft);
}

#tdApp .td-btn:focus-visible {
	outline: 2px solid var(--td-primary);
	outline-offset: 2px;
}

#tdApp .td-btn-primary {
	background: var(--td-primary);
	border-color: var(--td-primary);
	color: #fff;
}

#tdApp .td-btn-primary:hover {
	background: var(--td-primary-hover);
	border-color: var(--td-primary-hover);
}

#tdApp .td-btn-primary.is-done {
	background: var(--td-add);
	border-color: var(--td-add);
}

#tdApp .td-stage {
	background: var(--td-bg);
	border: 1px solid var(--td-line);
	border-radius: var(--td-radius);
	overflow: hidden;
}

#tdApp .td-stage-head {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 0.65rem 1rem;
	padding: 0.85rem 1rem;
	border-bottom: 1px solid var(--td-line);
	background: var(--td-soft);
}

#tdApp .td-stats {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 0.65rem;
	font-size: 0.8125rem;
	font-variant-numeric: tabular-nums;
}

#tdApp .td-stat {
	font-weight: 700;
}

#tdApp .td-stat-add {
	color: var(--td-add);
}

#tdApp .td-stat-del {
	color: var(--td-del);
}

#tdApp .td-stat-same {
	color: #4b5563;
}

#tdApp .td-stat-hint {
	color: var(--td-muted);
	font-weight: 500;
}

#tdApp .td-empty {
	display: flex;
	align-items: center;
	justify-content: center;
	min-height: 10rem;
	padding: 2rem 1rem;
	color: #9ca3af;
	font-size: 0.875rem;
	text-align: center;
}

#tdApp .td-result {
	padding: 0;
}

#tdApp .td-merge-view {
	padding: 1rem 1.1rem;
	min-height: 8rem;
	max-height: 28rem;
	overflow: auto;
	font-size: 0.975rem;
	line-height: 1.8;
	color: var(--td-ink);
	word-break: break-word;
}

#tdApp .td-same {
	color: var(--td-ink);
}

#tdApp .td-del {
	background: var(--td-del-bg);
	color: var(--td-del);
	text-decoration: line-through;
	border-radius: 0.15rem;
	padding: 0 0.1em;
}

#tdApp .td-add {
	background: var(--td-add-bg);
	color: var(--td-add);
	text-decoration: none;
	border-radius: 0.15rem;
	padding: 0 0.1em;
}

#tdApp .td-identical {
	padding: 1.5rem 1rem;
	text-align: center;
	color: var(--td-add);
	font-weight: 600;
}

#tdApp .hidden {
	display: none !important;
}

#tdApp .td-notes {
	padding: 1.5rem;
	background: var(--td-bg);
	border: 1px solid var(--td-line);
	border-radius: var(--td-radius);
}

@media (min-width: 640px) {
	#tdApp .td-notes {
		padding: 2rem;
	}
}

#tdApp .td-notes a {
	color: var(--td-primary);
}

#tdApp .td-notes code {
	font-size: 0.85em;
	background: #f3f4f6;
	padding: 0.05em 0.3em;
	border-radius: 0.25rem;
}

@media (prefers-reduced-motion: reduce) {
	#tdApp .td-btn,
	#tdApp .td-swap {
		transition: none !important;
	}
}