/* ============================================================
   portfolio.css — NORTH SOFTWARE SOLUTIONS SRL
   Theme: Dark tech, geometric, neon accents
   Design by: NORTH SOFTWARE SOLUTIONS SRL
   Instagram: @northsolutions.ro
   Url: https://northsolutions.ro
   ============================================================ */

/* ── Portfolio Hero ──────────────────────────────────────── */
.pf-hero {
	position: relative;
	min-height: 60vh;
	display: flex;
	align-items: center;
	padding: 140px 0 80px;
	overflow: hidden;
	background: var(--bg-base);
}

.pf-hero__grid {
	position: absolute;
	inset: 0;
	background-image:
		linear-gradient(rgba(0, 229, 255, 0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 229, 255, 0.035) 1px, transparent 1px);
	background-size: 60px 60px;
	mask-image: radial-gradient(ellipse 90% 90% at 50% 50%, black 20%, transparent 100%);
}

.pf-hero__orb {
	position: absolute;
	border-radius: 50%;
	pointer-events: none;
}

.pf-hero__orb--1 {
	width: 600px;
	height: 600px;
	background: radial-gradient(circle, rgba(0, 229, 255, 0.07) 0%, transparent 65%);
	top: -150px;
	right: -100px;
}

.pf-hero__orb--2 {
	width: 400px;
	height: 400px;
	background: radial-gradient(circle, rgba(124, 58, 237, 0.06) 0%, transparent 65%);
	bottom: -100px;
	left: -50px;
}

.pf-hero__content {
	position: relative;
	z-index: 2;
	max-width: 700px;
}

.pf-hero__title {
	font-size: clamp(2.4rem, 5.5vw, 4.2rem);
	letter-spacing: -0.035em;
	line-height: 1.05;
	margin: 0.75rem 0 1.25rem;
}

.pf-hero__title-accent {
	background: var(--gradient-accent);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}

.pf-hero__subtitle {
	font-size: 1.1rem;
	color: var(--text-secondary);
	font-weight: 400;
	line-height: 1.75;
	margin-bottom: 2.5rem;
	max-width: 520px;
}

/* Stats quick */
.pf-hero__stats {
	display: flex;
	align-items: center;
	gap: 2rem;
	flex-wrap: wrap;
}

.pf-stat {
	display: flex;
	flex-direction: column;
	gap: 0.2rem;
}

.pf-stat__num {
	font-size: 1.8rem;
	font-weight: 800;
	color: var(--accent);
	line-height: 1;
}

.pf-stat__label {
	font-family: var(--font-mono);
	font-size: 0.7rem;
	color: var(--text-muted);
	text-transform: uppercase;
	letter-spacing: 0.1em;
}

.pf-stat__divider {
	width: 1px;
	height: 36px;
	background: var(--border);
}

/* ── Filter Bar ──────────────────────────────────────────── */
.pf-filter-bar {
	position: sticky;
	top: 68px;
	z-index: 90;
	background: rgba(8, 12, 16, 0.95);
	backdrop-filter: blur(16px);
	-webkit-backdrop-filter: blur(16px);
	border-bottom: 1px solid var(--border);
	padding: 0.75rem 0;
}

.pf-filter__inner {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	flex-wrap: wrap;
}

.pf-filter__btn {
	font-family: var(--font-mono);
	font-size: 0.75rem;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--text-muted);
	background: transparent;
	border: 1px solid transparent;
	border-radius: 100px;
	padding: 0.4rem 1rem;
	cursor: pointer;
	transition: all var(--transition);
}

.pf-filter__btn:hover {
	color: var(--text-secondary);
	border-color: var(--border);
}

.pf-filter__btn.active {
	color: var(--accent);
	background: var(--accent-dim);
	border-color: var(--border-hover);
}

/* ── Section wrapper ─────────────────────────────────────── */
.pf-section {
	padding: 60px 0 40px;
	background: var(--bg-base);
}

.pf-section--grid {
	padding-bottom: 80px;
}

.pf-section__label {
	margin-bottom: 2rem;
}

.pf-featured-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(480px, 1fr));
	gap: 1.5rem;
}

.pf-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
	gap: 1.5rem;
}

/* ── Card Base ───────────────────────────────────────────── */
.pf-card {
	background: var(--bg-card);
	border: 1px solid var(--border);
	border-radius: var(--radius-lg);
	overflow: hidden;
	transition:
		transform var(--transition),
		border-color var(--transition),
		box-shadow var(--transition);
	display: flex;
	flex-direction: column;
}

.pf-card:hover {
	transform: translateY(-6px);
	border-color: var(--border-hover);
	box-shadow: var(--shadow-hover);
}

/* ── Card Image ──────────────────────────────────────────── */
.pf-card__image-wrap {
	position: relative;
	overflow: hidden;
}

.pf-card--featured .pf-card__image-wrap {
	aspect-ratio: 16 / 9;
}

.pf-card--small .pf-card__image-wrap {
	aspect-ratio: 16 / 9;
}

.pf-card__image {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
	display: block;
}

.pf-card:hover .pf-card__image {
	transform: scale(1.06);
}

.pf-card__image-overlay {
	position: absolute;
	inset: 0;
	background: linear-gradient(to bottom, transparent 40%, rgba(8, 12, 16, 0.7) 100%);
	transition: opacity var(--transition);
}

.pf-card__links {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	display: flex;
	gap: 0.75rem;
	opacity: 0;
	transition: opacity var(--transition);
	z-index: 2;
}

.pf-card:hover .pf-card__links {
	opacity: 1;
}

.pf-card__link-btn {
	display: inline-flex;
	align-items: center;
	gap: 0.4rem;
	padding: 0.55rem 1.1rem;
	border-radius: 8px;
	font-family: var(--font-mono);
	font-size: 0.78rem;
	font-weight: 500;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	background: var(--accent);
	color: #080c10;
	transition: all var(--transition);
	white-space: nowrap;
}

.pf-card__link-btn:hover {
	background: #fff;
	transform: scale(1.05);
}

.pf-card__link-btn--ghost {
	background: rgba(8, 12, 16, 0.85);
	color: var(--text-primary);
	border: 1px solid var(--border-hover);
}

.pf-card__link-btn--ghost:hover {
	background: rgba(8, 12, 16, 0.95);
	color: var(--accent);
}

/* ── Card Body ───────────────────────────────────────────── */
.pf-card__body {
	padding: 1.5rem;
	display: flex;
	flex-direction: column;
	gap: 0.75rem;
	flex: 1;
}

.pf-card--featured .pf-card__body {
	padding: 1.75rem 2rem;
}

.pf-card__meta {
	display: flex;
	align-items: center;
	justify-content: space-between;
}

.pf-card__cat {
	font-family: var(--font-mono);
	font-size: 0.7rem;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--cat-color, var(--accent));
	background: color-mix(in srgb, var(--cat-color, var(--accent)) 12%, transparent);
	border: 1px solid color-mix(in srgb, var(--cat-color, var(--accent)) 30%, transparent);
	padding: 0.25em 0.75em;
	border-radius: 100px;
}

.pf-card__year {
	display: inline-block;
	font-family: var(--font-mono);
	font-size: 0.72rem;
	color: var(--text-accent);
	letter-spacing: 0.05em;
	padding: 0.25rem 0.5rem;
	border-radius: 999px;
	background: rgba(255, 255, 255, 0.05);
	border: 1px solid rgba(255, 255, 255, 0.08);
	backdrop-filter: blur(4px);
}

.pf-card__title {
	font-size: 1.15rem;
	font-weight: 700;
	letter-spacing: -0.015em;
	line-height: 1.25;
	color: var(--text-primary);
	transition: color var(--transition);
}

.pf-card--featured .pf-card__title {
	font-size: 1.4rem;
}

.pf-card:hover .pf-card__title {
	color: var(--accent);
}

.pf-card__desc {
	font-size: 0.88rem;
	color: var(--text-secondary);
	line-height: 1.7;
	font-weight: 400;
}

.pf-card__tags {
	display: flex;
	flex-wrap: wrap;
	gap: 0.4rem;
	margin-top: auto;
	padding-top: 0.25rem;
}

.pf-tag {
	font-family: var(--font-mono);
	font-size: 0.7rem;
	color: var(--text-muted);
	background: rgba(255, 255, 255, 0.04);
	border: 1px solid var(--border);
	padding: 0.2em 0.65em;
	border-radius: 4px;
	transition: all var(--transition);
}

.pf-card:hover .pf-tag {
	color: var(--text-secondary);
	border-color: rgba(0, 229, 255, 0.15);
}

/* ── Empty state ─────────────────────────────────────────── */
.pf-empty {
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 1rem;
	padding: 5rem 0;
	color: var(--text-muted);
	text-align: center;
}

.pf-empty span {
	font-size: 2.5rem;
	opacity: 0.3;
}

.pf-empty p {
	font-family: var(--font-mono);
	font-size: 0.88rem;
	letter-spacing: 0.06em;
}

/* ── CTA Bottom ──────────────────────────────────────────── */
.pf-cta {
	padding: 80px 0;
	background: linear-gradient(180deg, var(--bg-base) 0%, #060a12 100%);
	border-top: 1px solid var(--border);
}

.pf-cta__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 2rem;
	flex-wrap: wrap;
}

.pf-cta__title {
	font-size: clamp(1.6rem, 3vw, 2.2rem);
	letter-spacing: -0.025em;
}

.pf-cta__sub {
	color: var(--text-secondary);
	font-size: 0.95rem;
	margin-top: 0.35rem;
	font-weight: 400;
}

/* ── Nav active link ─────────────────────────────────────── */
.nav__active {
	color: var(--accent) !important;
}

.nav__active::after {
	width: 100% !important;
}

@keyframes pfFadeIn {
	from {
		opacity: 0;
		transform: translateY(12px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 900px) {
	.pf-featured-grid {
		grid-template-columns: 1fr;
	}
}

@media (max-width: 640px) {
	.pf-hero {
		padding: 110px 0 60px;
	}
	.pf-hero__title {
		font-size: 2.2rem;
	}
	.pf-hero__stats {
		gap: 1.25rem;
	}
	.pf-stat__divider {
		height: 28px;
	}

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

	.pf-card--featured .pf-card__body {
		padding: 1.25rem;
	}

	.pf-cta__inner {
		flex-direction: column;
		align-items: flex-start;
	}

	.pf-filter__btn {
		font-size: 0.7rem;
		padding: 0.35rem 0.75rem;
	}
}