body {
	font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
	margin: 0;
	background: #f8fafc;
	color: #1f2937;
}

.page {
	max-width: 1100px;
	margin: 0 auto;
	padding: 20px;
}

.page-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	margin-bottom: 16px;
}

.page-header h1 {
	font-size: 22px;
	margin: 0;
}

.page-header a {
	color: #2563eb;
	text-decoration: none;
}

.drop-area {
	border: 2px dashed #9ca3af;
	border-radius: 8px;
	padding: 25px;
	text-align: center;
	color: #6b7280;
	margin: 0 0 20px;
	background: #ffffff;
}

.message-area {
	margin: 0 0 18px;
}

.message-error {
	border: 1px solid #d32f2f;
	background: #ffebee;
	color: #b71c1c;
	padding: 10px 12px;
	border-radius: 4px;
	margin-bottom: 8px;
}

.message-warning {
	border: 1px solid #f59e0b;
	background: #fff7ed;
	color: #92400e;
	padding: 10px 12px;
	border-radius: 4px;
	margin-bottom: 8px;
}

.demo-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
	gap: 16px;
}

.demo-card {
	background: #ffffff;
	border: 1px solid #e5e7eb;
	border-radius: 8px;
	overflow: hidden;
}

.demo-card-title {
	font-size: 16px;
	font-weight: 600;
	padding: 12px 14px;
	border-bottom: 1px solid #e5e7eb;
	word-break: break-word;
}

.demo-card-media {
	background: #f3f4f6;
	padding: 10px;
}

.thumbnail {
	max-width: 100%;
	display: block;
}

.demo-card-content {
	padding: 10px 14px 14px;
}

.demo-card-content ul {
	padding-left: 18px;
	margin: 0;
}