@charset "utf-8";
@import url('https://fonts.googleapis.com/css2?family=Quicksand:wght@400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* CSS Variables for consistent theming */
:root {
	--primary-color: #2563eb;
	--primary-hover: #1d4ed8;
	--secondary-color: #475569;
	--background: #f8fafc;
	--surface: #ffffff;
	--text-primary: #1e293b;
	--text-secondary: #64748b;
	--border-color: #e2e8f0;
	--shadow: rgba(15, 23, 42, 0.08);
	--shadow-lg: rgba(15, 23, 42, 0.15);
	--success: #16a34a;
	--accent: #8b5cf6;
}

/* Reset and base styles */
* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

html {
	font-size: 16px;
	scroll-behavior: smooth;
}

body {
	font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
	background-color: var(--background);
	color: var(--text-primary);
	line-height: 1.6;
	min-height: 100vh;
	display: flex;
	flex-direction: column;
}

/* Skip to main content for accessibility */
.skip-to-main {
	position: absolute;
	left: -9999px;
	z-index: 999;
}

.skip-to-main:focus {
	left: 50%;
	top: 10px;
	transform: translateX(-50%);
	background: var(--primary-color);
	color: white;
	padding: 0.75rem 1.5rem;
	border-radius: 4px;
	text-decoration: none;
}

/* Navigation */
nav {
	background: var(--surface);
	box-shadow: 0 1px 3px var(--shadow);
	position: sticky;
	top: 0;
	z-index: 100;
	padding: 0;
}

nav ul {
	list-style: none;
	display: flex;
	justify-content: center;
	align-items: center;
	gap: 1rem;
	max-width: 1200px;
	margin: 0 auto;
	padding: 1rem;
	flex-wrap: wrap;
}

nav li {
	margin: 0;
}

nav a {
	color: var(--text-secondary);
	text-decoration: none;
	padding: 0.5rem 1rem;
	border-radius: 6px;
	transition: all 0.2s ease;
	font-weight: 500;
	display: flex;
	align-items: center;
	gap: 0.5rem;
}

nav a:hover,
nav a:focus {
	color: var(--primary-color);
	background: var(--background);
	outline: 2px solid var(--primary-color);
	outline-offset: 2px;
}

nav img {
	width: 32px;
	height: 32px;
	object-fit: contain;
	transition: transform 0.2s ease;
	float: none;
	display: inline-block;
}

nav a:hover img {
	transform: scale(1.1);
}

/* Main content container */
main {
	flex: 1;
	max-width: 1200px;
	margin: 0 auto;
	padding: 2rem 1rem;
	width: 100%;
}

/* Header styles */
h1 {
	font-family: 'Quicksand', sans-serif;
	font-size: 2.5rem;
	font-weight: 700;
	margin-bottom: 1rem;
	color: var(--text-primary);
	text-align: center;
}

h1 a {
	color: var(--text-primary);
	text-decoration: none;
	transition: color 0.2s ease;
}

h1 a:hover,
h1 a:focus {
	color: var(--primary-color);
	outline: 2px solid var(--primary-color);
	outline-offset: 4px;
	border-radius: 4px;
}

h2 {
	font-family: 'Quicksand', sans-serif;
	font-size: 1.875rem;
	font-weight: 600;
	margin: 2rem 0 1rem;
	color: var(--text-primary);
}

h3 {
	font-family: 'Quicksand', sans-serif;
	font-size: 1.5rem;
	font-weight: 600;
	margin: 1.5rem 0 1rem;
	color: var(--text-primary);
}

/* Paragraph styles */
p {
	margin-bottom: 1rem;
	color: var(--text-secondary);
	max-width: 65ch;
}

.intro {
	font-size: 1.125rem;
	text-align: center;
	margin: 1rem auto 2rem;
	color: var(--text-secondary);
}

/* Section styles */
section {
	margin: 3rem 0;
	padding: 2rem;
	background: var(--surface);
	border-radius: 12px;
	box-shadow: 0 1px 3px var(--shadow);
}

.about {
	text-align: center;
}

.about p {
	margin: 0 auto 1rem;
}

/* Card grid for project categories */
.category-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
	gap: 1.5rem;
	margin: 2rem 0;
}

.category-card {
	background: var(--surface);
	border: 2px solid var(--border-color);
	border-radius: 12px;
	padding: 1.5rem;
	text-align: center;
	transition: all 0.3s ease;
	text-decoration: none;
	display: block;
}

.category-card:hover,
.category-card:focus {
	transform: translateY(-4px);
	box-shadow: 0 8px 16px var(--shadow-lg);
	border-color: var(--primary-color);
	outline: none;
}

.category-card img {
	width: 80px;
	height: 80px;
	margin: 0 auto 1rem;
	object-fit: contain;
	display: block;
	float: none;
}

.category-card h3 {
	margin: 0.5rem 0;
	color: var(--text-primary);
	font-size: 1.25rem;
}

.category-card p {
	color: var(--text-secondary);
	font-size: 0.875rem;
	margin: 0;
}

/* List styles */
ul {
	list-style: none;
	padding: 0;
	border: none;
	float: none;
	clear: none;
	width: 100%;
	text-align: left;
	display: block;
}

ul li {
	margin: 0.75rem 0;
	padding-left: 1.5rem;
	position: relative;
}

ul li::before {
	content: "→";
	position: absolute;
	left: 0;
	color: var(--primary-color);
	font-weight: bold;
}

ul.Left,
ul.Right {
	width: 100%;
	float: none;
	clear: none;
	list-style: none;
	text-align: left;
}

/* Two column layout for project lists */
.project-columns {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
	gap: 2rem;
	margin: 1rem 0;
}

/* Link styles */
a {
	color: var(--primary-color);
	text-decoration: none;
	transition: all 0.2s ease;
}

a:hover {
	color: var(--primary-hover);
	text-decoration: underline;
}

a:focus {
	outline: 2px solid var(--primary-color);
	outline-offset: 2px;
	border-radius: 2px;
}

/* Button styles */
.btn {
	display: inline-block;
	padding: 0.75rem 1.5rem;
	background: var(--primary-color);
	color: white;
	border-radius: 6px;
	font-weight: 500;
	text-decoration: none;
	transition: all 0.2s ease;
	border: none;
	cursor: pointer;
}

.btn:hover,
.btn:focus {
	background: var(--primary-hover);
	transform: translateY(-2px);
	box-shadow: 0 4px 12px var(--shadow-lg);
	text-decoration: none;
	color: white;
}

.btn-secondary {
	background: var(--surface);
	color: var(--text-primary);
	border: 2px solid var(--border-color);
}

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

/* Footer */
footer {
	background: var(--surface);
	border-top: 1px solid var(--border-color);
	padding: 2rem 1rem;
	margin-top: auto;
	text-align: center;
	font-family: 'Quicksand', sans-serif;
	position: relative;
	width: 100%;
	bottom: auto;
	clear: both;
}

footer p {
	margin: 0.5rem auto;
	color: var(--text-secondary);
	font-size: 0.875rem;
	max-width: 100%;
}

footer a {
	color: var(--primary-color);
	font-weight: 500;
}

#lastModified {
	display: block;
	margin-top: 0.5rem;
	font-size: 0.75rem;
	color: var(--text-secondary);
}

/* Image styles */
img {
	max-width: 100%;
	height: auto;
	display: block;
	float: none;
}

/* Responsive Design */
@media (max-width: 768px) {
	h1 {
		font-size: 2rem;
	}

	h2 {
		font-size: 1.5rem;
	}

	h3 {
		font-size: 1.25rem;
	}

	main {
		padding: 1rem;
	}

	section {
		padding: 1.5rem;
	}

	.category-grid {
		grid-template-columns: 1fr;
	}

	.project-columns {
		grid-template-columns: 1fr;
	}

	nav ul {
		flex-direction: column;
		gap: 0.5rem;
	}
}

@media (max-width: 480px) {
	h1 {
		font-size: 1.75rem;
	}

	section {
		padding: 1rem;
		margin: 1.5rem 0;
	}

	.btn {
		display: block;
		width: 100%;
		text-align: center;
	}
}

/* Print styles */
@media print {
	nav,
	footer {
		display: none;
	}

	body {
		background: white;
	}

	a {
		text-decoration: underline;
	}
}