/* ===== RESPONSIVE PORTFOLIO WITH MODERN TECHNIQUES ===== */

:root {
	--primary-color: #3b82f6;
	--secondary-color: #64748b;
	--accent-color: #f59e0b;
	--white: #ffffff;
	--border-color: #e2e8f0;

	/* Fluid spacing */
	--spacing-xs: clamp(0.5rem, 1vw, 0.75rem);
	--spacing-sm: clamp(1rem, 2vw, 1.5rem);
	--spacing-md: clamp(1.5rem, 3vw, 2.5rem);
	--spacing-lg: clamp(2rem, 4vw, 3.5rem);
	--spacing-xl: clamp(3rem, 6vw, 5rem);

	/* Fluid typography */
	--text-xs: clamp(0.75rem, 1.5vw, 0.875rem);
	--text-sm: clamp(0.875rem, 2vw, 1rem);
	--text-base: clamp(1rem, 2.5vw, 1.125rem);
	--text-lg: clamp(1.125rem, 3vw, 1.25rem);
	--text-xl: clamp(1.25rem, 4vw, 1.5rem);
	--text-2xl: clamp(1.5rem, 5vw, 2rem);
	--text-3xl: clamp(2rem, 6vw, 3rem);
	--text-4xl: clamp(2.5rem, 8vw, 4rem);

	/* Shadows */
	--shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
	--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);

	/* Border radius */
	--border-radius: clamp(0.5rem, 1vw, 0.75rem);
	--border-radius-lg: clamp(0.75rem, 1.5vw, 1rem);
}

/* ===== ENHANCED CONTAINER SYSTEM ===== */
.container {
	container-type: inline-size;
	container-name: portfolio-container;
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 var(--spacing-md);
}

/* ===== ENHANCED HEADER ===== */
.portfolio-header {
	background: var(--primary-color);
	color: var(--white);
	padding: var(--spacing-lg) 0;
	position: sticky;
	top: 0;
	z-index: 100;
	box-shadow: var(--shadow);
}

.portfolio-header .container {
	display: flex;
	justify-content: space-between;
	align-items: center;
	flex-wrap: wrap;
	gap: var(--spacing-md);
}

.portfolio-title {
	font-size: var(--text-4xl);
	font-weight: 700;
}

/* ===== ENHANCED NAVIGATION ===== */
.portfolio-nav {
	display: flex;
	gap: var(--spacing-lg);
	flex-wrap: wrap;
}

.portfolio-nav a {
	color: var(--white);
	text-decoration: none;
	padding: var(--spacing-xs) var(--spacing-sm);
	border-radius: var(--border-radius);
	transition: background-color 0.2s;
	font-weight: 500;
}

.portfolio-nav a:hover {
	background-color: rgba(255, 255, 255, 0.1);
}

/* ===== CSS GRID SYSTEM WITH AUTO-FIT ===== */
.projects-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
	gap: var(--spacing-lg);
	margin: var(--spacing-xl) 0;
}

/* ===== SUBGRID IMPLEMENTATION ===== */
.project-card {
	display: grid;
	grid-template-columns: subgrid;
	grid-column: span 1;
	/* Fallback for browsers without subgrid support */
	@supports not (grid-template-columns: subgrid) {
		display: flex;
		flex-direction: column;
	}
}

/* Apply subgrid only when supported */
@supports (grid-template-columns: subgrid) {
	.projects-grid {
		grid-template-rows: auto auto 1fr auto; /* Title, image, description, tags */
	}

	.project-card {
		display: grid;
		grid-template-columns: subgrid;
		grid-template-rows: subgrid;
		grid-column: span 1;
		grid-row: span 1;
	}

	.project-card h3 {
		grid-row: 1;
	}

	.project-card img {
		grid-row: 2;
	}

	.project-card p {
		grid-row: 3;
	}

	.project-card .project-tags {
		grid-row: 4;
		align-self: end;
	}
}

/* ===== CONTAINER QUERIES (MOBILE-FIRST APPROACH) ===== */
/*
 * CONTAINER QUERIES CAN BE MOBILE-FIRST TOO!
 * Base styles are for narrow containers (mobile-like)
 * min-width adds styles for wider containers
 */

/* Base: Narrow containers (mobile-like) - horizontal card layout */
.project-card {
	display: flex;
	flex-direction: row;
	align-items: flex-start;
	gap: var(--spacing-md);
}

.project-card img {
	width: 120px;
	height: 90px;
	object-fit: cover;
	flex-shrink: 0;
}

.project-content {
	flex: 1;
}

/* Progressive enhancement: Wider containers - vertical card layout */
@container portfolio-container (min-width: 600px) {
	.project-card {
		display: flex;
		flex-direction: column;
		align-items: stretch;
		gap: 0;
	}

	.project-card img {
		width: 100%;
		height: 200px;
		object-fit: cover;
		flex-shrink: 0;
	}

	.project-content {
		flex: 1;
		padding: var(--spacing-lg);
	}
}

/* ===== ENHANCED PROJECT CARD ===== */
.project-card {
	background: var(--card-bg);
	border-radius: var(--border-radius);
	box-shadow: var(--shadow);
	overflow: hidden;
	transition: transform 0.2s, box-shadow 0.2s;
}

.project-card:hover {
	transform: translateY(-4px);
	box-shadow: var(--shadow-lg);
}

.project-card img {
	width: 100%;
	height: 200px;
	object-fit: cover;
	transition: transform 0.2s;
}

.project-card:hover img {
	transform: scale(1.05);
}

.project-content {
	padding: var(--spacing-lg);
}

.project-content h3 {
	font-size: var(--text-xl);
	font-weight: 600;
	margin-bottom: var(--spacing-sm);
	color: var(--text-color);
}

.project-content p {
	color: var(--secondary-color);
	margin-bottom: var(--spacing-md);
	line-height: 1.6;
}

/* ===== ENHANCED TAG SYSTEM ===== */
.project-tags {
	display: flex;
	flex-wrap: wrap;
	gap: var(--spacing-xs);
}

.tag {
	background: var(--primary-color);
	color: var(--white);
	padding: var(--spacing-xs) var(--spacing-sm);
	border-radius: 9999px;
	font-size: var(--text-xs);
	font-weight: 500;
}

/* ===== ENHANCED TYPOGRAPHY ===== */
h1,
h2,
h3 {
	font-weight: 600;
	line-height: 1.2;
}

h2 {
	font-size: var(--text-3xl);
	text-align: center;
	margin: var(--spacing-xl) 0;
	color: var(--text-color);
}

/* ===== ENHANCED FOOTER ===== */
.portfolio-footer {
	background: var(--secondary-color);
	color: white;
	text-align: center;
	padding: var(--spacing-lg) 0;
	margin-top: var(--spacing-xl);
}

/* ===== RESPONSIVE IMAGES ===== */
img {
	max-width: 100%;
	height: auto;
}

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