:root {
	--bg-color: #0f0f1a;
	--text-color: #e0e0ff;
	--accent-color: #4d4dff;
	--card-bg: rgba(30, 30, 50, 0.8);
	--card-hover: rgba(40, 40, 70, 0.9);
	--error-color: #ff4d4d;
	--max-width: 1200px;
	--spacing-sm: 0.5rem;
	--spacing-md: 1rem;
	--spacing-lg: 2rem;
	--spacing-xl: 3rem;
	--border-radius: 8px;
	--transition-speed: 0.3s;
}

* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

body {
	background-color: var(--bg-color);
	color: var(--text-color);
	min-height: 100vh;
	display: flex;
	flex-direction: column;
	align-items: center;
	padding: var(--spacing-lg);
	font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Arial', sans-serif;
	line-height: 1.6;
	background-image: radial-gradient(circle at 10% 20%, rgba(77, 77, 255, 0.1) 0%, transparent 40%),
		radial-gradient(circle at 90% 80%, rgba(77, 77, 255, 0.1) 0%, transparent 40%);
}

main {
	width: 100%;
	max-width: var(--max-width);
	flex: 1;
}

header {
	margin-bottom: var(--spacing-xl);
	text-align: center;
	width: 100%;
	max-width: var(--max-width);
}

h1 {
	font-size: clamp(1.8rem, 5vw, 2.5rem);
	font-weight: 300;
	letter-spacing: 2px;
	margin-bottom: var(--spacing-md);
	position: relative;
}

h1::after {
	content: '';
	position: absolute;
	bottom: -10px;
	left: 50%;
	transform: translateX(-50%);
	width: 60px;
	height: 3px;
	background-color: var(--accent-color);
}

.project-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
	gap: var(--spacing-lg);
	width: 100%;
}

.project-card {
	background-color: var(--card-bg);
	border-radius: var(--border-radius);
	padding: 1.5rem;
	transition: transform var(--transition-speed) ease, background-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
	border: 1px solid rgba(77, 77, 255, 0.2);
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
	position: relative;
	overflow: hidden;
	height: 100%;
}

.project-card::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	width: 4px;
	height: 0;
	background-color: var(--accent-color);
	transition: height var(--transition-speed) ease;
}

.project-card:hover,
.project-card:focus-within {
	transform: translateY(-5px);
	background-color: var(--card-hover);
	box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.project-card:hover::before,
.project-card:focus-within::before {
	height: 100%;
}

.project-card h2 {
	margin-bottom: 0.8rem;
	font-weight: 500;
	color: #ffffff;
}

.project-card p {
	margin-bottom: 1.5rem;
	line-height: 1.6;
	opacity: 0.9;
}

.project-card a {
	color: var(--text-color);
	text-decoration: none;
	display: block;
	width: 100%;
	height: 100%;
	outline: none;
}

.project-card a:focus {
	outline: 2px solid var(--accent-color);
	border-radius: calc(var(--border-radius) - 2px);
}

.view-project {
	display: inline-block;
	color: var(--accent-color);
	font-weight: 500;
	transition: transform var(--transition-speed) ease;
}

.project-card:hover .view-project,
.project-card:focus-within .view-project {
	transform: translateX(5px);
}

.loading-indicator,
.empty-state,
.error-message {
	text-align: center;
	padding: var(--spacing-xl);
	grid-column: 1 / -1;
}

.loading-indicator {
	animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
	0% {
		opacity: 0.6;
	}
	50% {
		opacity: 1;
	}
	100% {
		opacity: 0.6;
	}
}

.error-message {
	color: var(--error-color);
}

.sr-only {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border-width: 0;
}

footer {
	margin-top: var(--spacing-xl);
	opacity: 0.7;
	font-size: 0.9rem;
	width: 100%;
	max-width: var(--max-width);
	text-align: center;
}

/* Dark mode preference support */
@media (prefers-reduced-motion: reduce) {
	* {
		transition-duration: 0.01ms !important;
		animation-duration: 0.01ms !important;
		animation-iteration-count: 1 !important;
		scroll-behavior: auto !important;
	}
}

@media (prefers-color-scheme: light) {
	:root {
		--bg-color: #f0f0ff;
		--text-color: #1a1a2e;
		--card-bg: rgba(240, 240, 255, 0.9);
		--card-hover: rgba(230, 230, 255, 1);
	}

	.project-card h2 {
		color: #0f0f1a;
	}
}

@media (max-width: 768px) {
	body {
		padding: var(--spacing-md);
	}

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

@media (max-width: 480px) {
	header,
	footer {
		margin-bottom: var(--spacing-lg);
	}

	h1 {
		font-size: 1.8rem;
	}

	.project-card {
		padding: var(--spacing-md);
	}
}