:root {
	--primary-color: #6366f1;
	--secondary-color: #8b5cf6;
	--accent-color: #06b6d4;
	--success-color: #10b981;
	--warning-color: #f59e0b;
	--danger-color: #ef4444;
	--dark-color: #1e293b;
	--light-color: #f8fafc;
	--border-color: #e2e8f0;
	--text-color: #334155;
}

body {
	background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
	min-height: 100vh;
	font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
	margin: 0;
	padding: 0;
}

.csv-converter-container {
	background: rgba(255, 255, 255, 0.95);
	backdrop-filter: blur(10px);
	border-radius: 20px;
	margin: 20px;
	box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
	overflow: hidden;
	min-height: calc(100vh - 140px);
}

.csv-header {
	background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
	padding: 25px 30px;
	border-bottom: 1px solid var(--border-color);
	text-align: center;
}

.csv-title {
	font-size: 2rem;
	font-weight: 700;
	color: var(--primary-color);
	margin: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 15px;
}

.csv-subtitle {
	color: #64748b;
	font-size: 1rem;
	margin-top: 8px;
	font-weight: 400;
}

.csv-main {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 0;
	min-height: 600px;
}

.csv-panel {
	display: flex;
	flex-direction: column;
	background: rgba(255, 255, 255, 0.98);
}

.csv-panel:first-child {
	border-right: 1px solid var(--border-color);
}

.panel-header {
	background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
	padding: 15px 20px;
	border-bottom: 1px solid var(--border-color);
	display: flex;
	justify-content: space-between;
	align-items: center;
}

.panel-title {
	font-weight: 600;
	color: var(--dark-color);
	display: flex;
	align-items: center;
	gap: 8px;
}

.panel-actions {
	display: flex;
	gap: 8px;
}

.action-btn {
	background: rgba(255, 255, 255, 0.8);
	border: 1px solid var(--border-color);
	border-radius: 6px;
	padding: 6px 12px;
	font-size: 0.8rem;
	color: var(--text-color);
	cursor: pointer;
	transition: all 0.3s ease;
	display: flex;
	align-items: center;
	gap: 4px;
}

.action-btn:hover {
	background: var(--primary-color);
	color: white;
	border-color: var(--primary-color);
}

.action-btn.primary {
	background: var(--primary-color);
	color: white;
	border-color: var(--primary-color);
}

.action-btn.primary:hover {
	background: var(--secondary-color);
	border-color: var(--secondary-color);
}

.csv-textarea {
	flex: 1;
	border: none;
	outline: none;
	padding: 20px;
	font-family: 'Fira Code', 'Monaco', 'Consolas', monospace;
	font-size: 14px;
	line-height: 1.6;
	resize: none;
	background: transparent;
	color: var(--text-color);
}

.json-output {
	flex: 1;
	padding: 20px;
	font-family: 'Fira Code', 'Monaco', 'Consolas', monospace;
	font-size: 14px;
	line-height: 1.6;
	background: #f8fafc;
	color: var(--text-color);
	overflow-y: auto;
	white-space: pre-wrap;
	word-wrap: break-word;
	position: relative;
}

.csv-controls {
	background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
	padding: 20px 30px;
	border-top: 1px solid var(--border-color);
	display: flex;
	justify-content: center;
	gap: 15px;
	flex-wrap: wrap;
}

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

.control-label {
	font-size: 0.9rem;
	color: var(--text-color);
	font-weight: 500;
}

.control-select, .control-input {
	background: rgba(255, 255, 255, 0.9);
	border: 1px solid var(--border-color);
	border-radius: 6px;
	padding: 6px 10px;
	font-size: 0.85rem;
	color: var(--text-color);
	min-width: 80px;
}

.control-checkbox {
	margin-right: 5px;
}

.error-message {
	background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
	border: 1px solid #fca5a5;
	border-radius: 8px;
	padding: 15px;
	margin: 10px 0;
	color: #dc2626;
	font-weight: 500;
}

.success-message {
	background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
	border: 1px solid #bbf7d0;
	border-radius: 8px;
	padding: 15px;
	margin: 10px 0;
	color: #166534;
	font-weight: 500;
}

.csv-stats {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
	gap: 15px;
	margin: 20px 0;
}

.stat-card {
	background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
	border-radius: 8px;
	padding: 15px;
	text-align: center;
}

.stat-number {
	font-size: 1.5rem;
	font-weight: 700;
	color: var(--primary-color);
}

.stat-label {
	font-size: 0.8rem;
	color: var(--text-color);
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

.copy-btn {
	position: absolute;
	top: 10px;
	right: 10px;
	background: var(--primary-color);
	color: white;
	border: none;
	border-radius: 6px;
	padding: 8px 12px;
	font-size: 0.8rem;
	cursor: pointer;
	transition: all 0.3s ease;
}

.copy-btn:hover {
	background: var(--secondary-color);
	transform: translateY(-1px);
}

/* JSON Syntax Highlighting */
.json-key { color: #0066cc; font-weight: 600; }
.json-string { color: #009900; }
.json-number { color: #cc6600; }
.json-boolean { color: #cc0066; font-weight: 600; }
.json-null { color: #999999; font-style: italic; }
.json-bracket { color: #333333; font-weight: 600; }

/* Mobile Responsive */
@media (max-width: 768px) {
	.csv-converter-container {
		margin: 10px;
		border-radius: 15px;
	}
	
	.csv-main {
		grid-template-columns: 1fr;
	}
	
	.csv-panel:first-child {
		border-right: none;
		border-bottom: 1px solid var(--border-color);
	}
	
	.csv-controls {
		padding: 15px 20px;
		flex-direction: column;
		gap: 10px;
	}
	
	.control-group {
		justify-content: center;
	}
	
	.csv-header {
		padding: 20px;
	}
	
	.csv-title {
		font-size: 1.5rem;
	}
}