h1.tools {
	color: #2c3e50;
	border-bottom: 3px solid #3498db;
	padding-bottom: 10px;
	font-size: 28px;
}
h2.tools {
	color: #34495e;
	margin-top: 5px;
	border-left: 4px solid #3498db;
	padding-left: 15px;
	font-size: 22px;
}
h3.tools {
	position: relative;
	margin-top: 5px;
	padding: 20px 0 10px 0;
	font-size: 18px;
	font-weight: 500;
	color: #012970;
	font-family: "Poppins", sans-serif;
}

h3.tools::after {
	position: absolute;
	bottom: 0;
	left: 0;
	width: 100%;
	height: 2px;
	content: '';
	border-radius: 3px;
	background-color: #a0a0a0;
}

h4.tools {
	padding: 10px 0 0 0;
	font-size: 16px;
	font-weight: 500;
	color: #012970;
	font-family: "Poppins", sans-serif;
}
h5.tools {
	margin-top: 5px;
	padding: 20px 0 0 0;
	font-size: 13px;
	font-weight: 500;
	color: #012970;
	font-family: "Poppins", sans-serif;
}
section {
	background: #fff;
	padding: 25px;
	margin: 20px 0;
	border-radius: 8px;
	box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.category-tabs {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	margin: 20px 0;
	border-bottom: 2px solid #ddd;
	padding-bottom: 0;
}
.category-tab {
	padding: 12px 24px;
	background: transparent;
	border: none;
	border-bottom: 3px solid transparent;
	cursor: pointer;
	transition: all 0.3s;
	font-size: 16px;
	font-weight: 500;
	color: #7f8c8d;
	position: relative;
	bottom: -2px;
}
.category-tab:hover {
	background: #ecf0f1;
	color: #2c3e50;
	border-radius: 5px 5px 0 0;
}
.category-tab.active {
	background: #fff;
	color: #3498db;
	border-bottom: 3px solid #3498db;
	border-radius: 5px 5px 0 0;
}
.tab-content {
	display: none;
	background: #fff;
	padding: 30px;
	border-radius: 0 8px 8px 8px;
	box-shadow: 0 2px 10px rgba(0,0,0,0.1);
	animation: fadeIn 0.3s;
}
.tab-content.active {
	display: block;
}
@keyframes fadeIn {
	from {
		opacity: 0;
		transform: translateY(-10px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}
.highlight-box {
	background: #e8f5e9;
	padding: 20px;
	border-left: 4px solid #4caf50;
	margin: 20px 0;
	border-radius: 4px;
}
.note-box {
	background: #fff3cd;
	padding: 15px;
	border-left: 4px solid #ffc107;
	margin: 15px 0;
	border-radius: 4px;
}
.unit-input-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
	gap: 15px;
	margin: 20px 0;
}
.unit-input-item {
	display: flex;
	flex-direction: column;
	gap: 10px;
}
.unit-input-item label {
	min-width: 120px;
	font-weight: 500;
	color: #555;
	margin-bottom: 5px;
	font-size: 14px;
}
.unit-input-item input {
	flex: 1;
	padding: 8px 12px;
	border: 1px solid #ddd;
	border-radius: 4px;
	font-size: 14px;
}
.unit-input-item input:focus {
	outline: none;
	border-color: #3498db;
	box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.1);
}
.unit-input-item .unit-label {
	min-width: 60px;
	color: #7f8c8d;
	font-size: 13px;
}
.unit-input-wrapper {
	display: flex;
	align-items: center;
	gap: 8px;
}
.unit-input-wrapper input {
	flex: 1;
	padding: 10px;
	border: 1px solid #ddd;
	border-radius: 5px;
	font-size: 14px;
	transition: border-color 0.3s;
}
.unit-input-wrapper input:focus {
	outline: none;
	border-color: #3498db;
	box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}
.unit-symbol {
	color: #7f8c8d;
	font-size: 13px;
	min-width: 45px;
	text-align: left;
}
table {
	width: 100%;
	border-collapse: collapse;
	margin: 20px 0;
}
table, th, td {
	border: 1px solid #ddd;
}
th, td {
	padding: 12px;
	text-align: left;
}
th {
	background-color: #3498db;
	color: white;
	font-weight: 600;
}
tr:nth-child(even) {
	background-color: #f8f9fa;
}
ul, ol {
	margin: 10px 0;
	padding-left: 30px;
}
li {
	margin: 8px 0;
}
.related-tools ul {
	list-style: none;
	padding-left: 0;
}
.related-tools li {
	padding: 10px 0;
	border-bottom: 1px solid #ecf0f1;
}
.related-tools a {
	color: #3498db;
	text-decoration: none;
	font-weight: 500;
}
.related-tools a:hover {
	text-decoration: underline;
}

pre {
	word-wrap: break-word;
	background-color: #f4f4f4;
	padding: 10px;
	border-radius: 4px;
	font-size: 16px;
}