:root {
	--bg: #070b14;
	--bg-alt: #0b111f;
	--bg-card: #0f1525;
	--bg-elevated: #141c2e;
	--accent: #37f8ff;
	--accent-dim: rgba(55, 248, 255, 0.15);
	--accent-glow: rgba(55, 248, 255, 0.3);
	--blue: #3b82f6;
	--text: #d6dde8;
	--text-dim: #7e89a3;
	--text-bright: #f0f4ff;
	--border: rgba(55, 248, 255, 0.08);
	--border-strong: rgba(55, 248, 255, 0.18);
	--font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
	--font-mono: 'Fira Code', 'JetBrains Mono', 'Cascadia Code', 'Consolas', monospace;
	--max-w: 1200px;
	--nav-h: 60px;
	--cursor-x: 50vw;
	--cursor-y: 50vh;
}

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

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

body {
	font-family: var(--font-sans);
	background: var(--bg);
	color: var(--text);
	line-height: 1.65;
	-webkit-font-smoothing: antialiased;
	overflow-x: hidden;
}

body::before {
	content: '';
	position: fixed;
	inset: 0;
	background: radial-gradient(circle 420px at var(--cursor-x) var(--cursor-y), rgba(55,248,255,0.025) 0%, transparent 70%);
	pointer-events: none;
	z-index: 0;
	transition: background 0.08s;
}

a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--text-bright); }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; }

.pf-content { position: relative; z-index: 1; }
.pf-container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

.pf-eyebrow {
	font-family: var(--font-mono);
	font-size: 0.72rem;
	letter-spacing: 0.2em;
	text-transform: uppercase;
	color: var(--accent);
	margin-bottom: 12px;
}

.pf-section-title {
	font-size: 2rem;
	font-weight: 700;
	color: var(--text-bright);
	line-height: 1.2;
	margin-bottom: 24px;
}

@media (max-width: 640px) {
	.pf-section-title { font-size: 1.6rem; }
}

.pf-section {
	padding: 100px 0;
	border-bottom: 1px solid var(--border);
}
.pf-section--alt { background: var(--bg-alt); }

/* Nav */
.pf-nav {
	position: fixed;
	top: 0; left: 0; right: 0;
	height: var(--nav-h);
	background: rgba(7, 11, 20, 0.88);
	backdrop-filter: blur(12px);
	border-bottom: 1px solid var(--border);
	z-index: 100;
}
.pf-nav-inner {
	max-width: var(--max-w);
	margin: 0 auto;
	padding: 0 24px;
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: space-between;
}
.pf-nav-brand {
	font-family: var(--font-mono);
	font-size: 1.1rem;
	font-weight: 700;
	color: var(--text-bright);
}
.pf-nav-brand:hover { color: var(--accent); }
.pf-nav-brand-sub { color: var(--text-dim); font-weight: 400; }
.pf-nav-links { display: flex; gap: 28px; }
.pf-nav-links a {
	font-size: 0.82rem;
	font-weight: 500;
	color: var(--text-dim);
	letter-spacing: 0.04em;
	position: relative;
}
.pf-nav-links a::after {
	content: '';
	position: absolute;
	bottom: -4px; left: 0;
	width: 0; height: 1.5px;
	background: var(--accent);
	transition: width 0.25s;
}
.pf-nav-links a:hover { color: var(--text-bright); }
.pf-nav-links a:hover::after { width: 100%; }

@media (max-width: 640px) {
	.pf-nav-links { gap: 16px; }
	.pf-nav-links a { font-size: 0.75rem; }
}

/* Hero */
.pf-hero {
	min-height: 100vh;
	display: flex;
	align-items: center;
	padding: 120px 24px 80px;
	position: relative;
	overflow: hidden;
}
.pf-hero-bg {
	position: absolute;
	inset: 0;
	background:
		linear-gradient(135deg, rgba(55,248,255,0.03) 0%, transparent 50%),
		radial-gradient(ellipse at 70% 60%, rgba(55,248,255,0.04) 0%, transparent 60%);
	pointer-events: none;
}
.pf-hero-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 60px;
	align-items: center;
	max-width: var(--max-w);
	margin: 0 auto;
	width: 100%;
}
.pf-hero-eyebrow {
	font-family: var(--font-mono);
	font-size: 0.72rem;
	letter-spacing: 0.2em;
	color: var(--accent);
	margin-bottom: 16px;
}
.pf-hero-name {
	font-size: 2.8rem;
	font-weight: 700;
	color: var(--text-bright);
	line-height: 1.1;
	margin-bottom: 8px;
}
.pf-hero-title {
	font-size: 1.1rem;
	color: var(--accent);
	font-weight: 500;
	margin-bottom: 12px;
}
.pf-hero-lead {
	font-size: 0.88rem;
	color: var(--text-dim);
	font-family: var(--font-mono);
	margin-bottom: 20px;
	line-height: 1.5;
}
.pf-hero-tagline {
	font-size: 0.95rem;
	color: var(--text);
	margin-bottom: 32px;
	line-height: 1.6;
	max-width: 540px;
}
.pf-hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 32px; }
.pf-hero-badges { display: flex; flex-wrap: wrap; gap: 8px; }
.pf-hero-badges span {
	display: inline-block;
	padding: 4px 14px;
	font-size: 0.72rem;
	font-family: var(--font-mono);
	color: var(--accent);
	border: 1px solid var(--border-strong);
	border-radius: 20px;
	background: var(--accent-dim);
}

.pf-hero-visual {
	display: flex;
	justify-content: center;
	align-items: center;
}
.pf-orbital {
	width: 100%;
	max-width: 460px;
	aspect-ratio: 1;
	position: relative;
}
.pf-orbital .factory-viewer {
	width: 100%;
	height: 100%;
	border-radius: 50%;
	overflow: hidden;
	border: 1px solid var(--border-strong);
	box-shadow: 0 0 60px rgba(55,248,255,0.06);
}
.pf-orbital .factory-viewer__canvas {
	width: 100% !important;
	height: 100% !important;
	display: block;
}
.pf-orbital .factory-viewer__status {
	position: absolute;
	inset: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	font-family: var(--font-mono);
	font-size: 0.8rem;
	color: var(--text-dim);
}
.pf-orbital .factory-viewer__status.is-error { color: #f87171; }

@media (max-width: 860px) {
	.pf-hero { padding: 100px 24px 60px; }
	.pf-hero-grid { grid-template-columns: 1fr; gap: 40px; }
	.pf-hero-name { font-size: 2rem; }
	.pf-hero-visual { order: -1; }
	.pf-orbital { max-width: 320px; }
}

/* Btn */
.pf-btn {
	display: inline-block;
	padding: 12px 28px;
	font-family: var(--font-mono);
	font-size: 0.82rem;
	font-weight: 600;
	border-radius: 6px;
	border: none;
	transition: all 0.25s;
	text-align: center;
}
.pf-btn--primary {
	background: var(--accent);
	color: var(--bg);
}
.pf-btn--primary:hover {
	background: var(--text-bright);
	color: var(--bg);
	transform: translateY(-1px);
	box-shadow: 0 4px 24px rgba(55,248,255,0.2);
}
.pf-btn--ghost {
	background: transparent;
	color: var(--accent);
	border: 1px solid var(--border-strong);
}
.pf-btn--ghost:hover {
	background: var(--accent-dim);
	color: var(--text-bright);
	border-color: var(--accent);
}
.pf-btn--block { width: 100%; }

/* About */
.pf-about-grid {
	display: grid;
	grid-template-columns: 1.6fr 1fr;
	gap: 60px;
	align-items: start;
}
.pf-about-text p {
	margin-bottom: 16px;
	font-size: 0.95rem;
	color: var(--text);
	line-height: 1.7;
}
.pf-about-lead {
	font-size: 1.05rem !important;
	color: var(--text-bright) !important;
	font-weight: 500;
}
.pf-stack-flow {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 6px 10px;
	margin-top: 20px;
	padding: 16px 20px;
	background: var(--bg-card);
	border: 1px solid var(--border);
	border-radius: 8px;
	font-family: var(--font-mono);
	font-size: 0.78rem;
}
.pf-stack-flow span { color: var(--text-dim); }
.pf-stack-flow .pf-arrow { color: var(--accent); font-size: 1.1rem; }

.pf-about-stats {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 16px;
}
.pf-stat {
	background: var(--bg-card);
	border: 1px solid var(--border);
	border-radius: 10px;
	padding: 24px 16px;
	text-align: center;
}
.pf-stat-num {
	display: block;
	font-size: 2rem;
	font-weight: 700;
	color: var(--accent);
	font-family: var(--font-mono);
	line-height: 1.1;
	margin-bottom: 6px;
}
.pf-stat-label {
	font-size: 0.78rem;
	color: var(--text-dim);
}

@media (max-width: 800px) {
	.pf-about-grid { grid-template-columns: 1fr; gap: 36px; }
	.pf-about-stats { grid-template-columns: 1fr 1fr; }
}

/* Expertise */
.pf-expertise-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 20px;
}
.pf-expert-card {
	background: var(--bg-card);
	border: 1px solid var(--border);
	border-radius: 10px;
	padding: 28px 24px;
	transition: border-color 0.25s, transform 0.2s;
}
.pf-expert-card:hover {
	border-color: var(--border-strong);
	transform: translateY(-2px);
}
.pf-expert-icon {
	width: 28px;
	height: 28px;
	border-radius: 6px;
	margin-bottom: 14px;
	background: var(--accent-dim);
	border: 1px solid var(--border-strong);
	position: relative;
}
.pf-expert-icon::before {
	content: '';
	position: absolute;
	inset: 5px;
	border-radius: 2px;
	background: var(--accent);
	opacity: 0.5;
}
.pf-icon-vision::before { clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%); }
.pf-icon-plc::before { clip-path: polygon(0% 0%, 100% 0%, 100% 100%, 0% 100%); }
.pf-icon-robot::before { clip-path: polygon(20% 0%, 80% 0%, 100% 30%, 80% 60%, 80% 100%, 20% 100%, 20% 60%, 0% 30%); }
.pf-icon-edge::before { clip-path: polygon(50% 0%, 80% 30%, 70% 100%, 30% 100%, 20% 30%); }
.pf-icon-code::before { clip-path: polygon(0% 0%, 100% 20%, 80% 100%, 20% 80%); }
.pf-icon-xr::before { clip-path: circle(40% at 50% 50%); }
.pf-icon-os::before { clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%); }
.pf-icon-net::before { clip-path: polygon(0% 0%, 100% 0%, 100% 30%, 70% 50%, 100% 70%, 100% 100%, 0% 100%, 0% 70%, 30% 50%, 0% 30%); }
.pf-icon-embed::before { clip-path: polygon(10% 10%, 90% 10%, 90% 40%, 100% 50%, 90% 60%, 90% 90%, 10% 90%, 10% 60%, 0% 50%, 10% 40%); }

.pf-expert-card h3 {
	font-size: 1rem;
	font-weight: 600;
	color: var(--text-bright);
	margin-bottom: 8px;
}
.pf-expert-card p {
	font-size: 0.82rem;
	color: var(--text-dim);
	line-height: 1.6;
	margin-bottom: 14px;
}

@media (max-width: 800px) {
	.pf-expertise-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 500px) {
	.pf-expertise-grid { grid-template-columns: 1fr; }
}

/* Tags */
.pf-tag-list {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
}
.pf-tag-list li {
	padding: 2px 10px;
	font-size: 0.68rem;
	font-family: var(--font-mono);
	color: var(--accent);
	background: var(--accent-dim);
	border-radius: 4px;
}

/* Timeline */
.pf-timeline { position: relative; padding-left: 40px; }
.pf-timeline::before {
	content: '';
	position: absolute;
	left: 14px;
	top: 8px;
	bottom: 8px;
	width: 1.5px;
	background: linear-gradient(to bottom, var(--accent), var(--border-strong));
}
.pf-timeline-item {
	position: relative;
	margin-bottom: 48px;
	padding-left: 40px;
}
.pf-timeline-item::before {
	content: '';
	position: absolute;
	left: -26px;
	top: 6px;
	width: 10px;
	height: 10px;
	border-radius: 50%;
	background: var(--bg);
	border: 2px solid var(--accent);
}
.pf-timeline-highlight::before {
	background: var(--accent);
	box-shadow: 0 0 12px rgba(55,248,255,0.4);
}
.pf-timeline-date {
	font-family: var(--font-mono);
	font-size: 0.75rem;
	color: var(--accent);
	display: block;
	margin-bottom: 4px;
}
.pf-timeline-item h3 {
	font-size: 1.05rem;
	font-weight: 600;
	color: var(--text-bright);
	margin-bottom: 2px;
}
.pf-timeline-org {
	font-size: 0.85rem;
	color: var(--text-dim);
	margin-bottom: 12px;
}
.pf-timeline-body ul { list-style: disc; padding-left: 18px; }
.pf-timeline-body li {
	font-size: 0.88rem;
	color: var(--text);
	line-height: 1.6;
	margin-bottom: 4px;
}

@media (max-width: 640px) {
	.pf-timeline { padding-left: 24px; }
	.pf-timeline::before { left: 6px; }
	.pf-timeline-item { padding-left: 28px; }
	.pf-timeline-item::before { left: -18px; width: 8px; height: 8px; }
}

/* Projects */
.pf-projects-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 20px;
}
.pf-project-card {
	background: var(--bg-card);
	border: 1px solid var(--border);
	border-radius: 10px;
	padding: 28px 24px;
	transition: border-color 0.25s, transform 0.2s;
}
.pf-project-card:hover {
	border-color: var(--border-strong);
	transform: translateY(-2px);
}
.pf-project-header { margin-bottom: 12px; }
.pf-project-tag {
	display: inline-block;
	font-family: var(--font-mono);
	font-size: 0.65rem;
	letter-spacing: 0.08em;
	color: var(--blue);
	background: rgba(59, 130, 246, 0.1);
	padding: 3px 10px;
	border-radius: 4px;
	margin-bottom: 8px;
}
.pf-project-card h3 {
	font-size: 1rem;
	font-weight: 600;
	color: var(--text-bright);
	line-height: 1.3;
}
.pf-project-card p {
	font-size: 0.85rem;
	color: var(--text-dim);
	line-height: 1.6;
	margin-bottom: 14px;
}

@media (max-width: 700px) {
	.pf-projects-grid { grid-template-columns: 1fr; }
}

/* Contact */
.pf-contact { border-bottom: none; }
.pf-contact-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 60px;
	align-items: start;
}
.pf-contact-copy p {
	font-size: 0.95rem;
	color: var(--text);
	line-height: 1.7;
	margin-bottom: 24px;
}
.pf-contact-channels { display: flex; flex-direction: column; gap: 12px; margin-bottom: 20px; }
.pf-contact-link {
	display: inline-flex;
	align-items: center;
	gap: 12px;
	font-size: 0.88rem;
	color: var(--text);
	padding: 8px 12px;
	border-radius: 6px;
	transition: background 0.2s;
}
.pf-contact-link:hover { background: var(--bg-card); color: var(--accent); }
.pf-contact-icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 32px;
	height: 32px;
	border-radius: 6px;
	background: var(--accent-dim);
	color: var(--accent);
	font-family: var(--font-mono);
	font-weight: 700;
	font-size: 0.85rem;
	flex-shrink: 0;
}
.pf-contact-base {
	font-size: 0.82rem !important;
	color: var(--text-dim) !important;
}

/* Form */
.pf-form {
	display: flex;
	flex-direction: column;
	gap: 14px;
}
.pf-form input,
.pf-form select,
.pf-form textarea {
	width: 100%;
	padding: 12px 16px;
	font-family: var(--font-sans);
	font-size: 0.88rem;
	color: var(--text);
	background: var(--bg-card);
	border: 1px solid var(--border);
	border-radius: 6px;
	outline: none;
	transition: border-color 0.2s;
}
.pf-form input:focus,
.pf-form select:focus,
.pf-form textarea:focus {
	border-color: var(--accent);
	box-shadow: 0 0 0 2px var(--accent-dim);
}
.pf-form textarea { min-height: 120px; resize: vertical; }
.pf-form select { cursor: pointer; }
.pf-form ::placeholder { color: var(--text-dim); }
.pf-honeypot { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.pf-form-note {
	font-size: 0.72rem !important;
	color: var(--text-dim) !important;
	text-align: center;
	margin-top: 4px;
}

@media (max-width: 800px) {
	.pf-contact-grid { grid-template-columns: 1fr; gap: 36px; }
}

/* Footer */
.pf-footer {
	padding: 40px 0;
	border-top: 1px solid var(--border);
	text-align: center;
}
.pf-footer-links {
	display: flex;
	justify-content: center;
	gap: 24px;
	margin-bottom: 12px;
}
.pf-footer-links li {
	font-size: 0.82rem;
	color: var(--text-dim);
}
.pf-footer-links a { color: var(--text-dim); }
.pf-footer-links a:hover { color: var(--accent); }
.pf-footer-credit {
	font-size: 0.72rem;
	color: var(--text-dim);
}

/* Reveal animations */
.reveal-in {
	opacity: 0;
	transform: translateY(24px);
	transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1),
							transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-in.is-visible {
	opacity: 1;
	transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
	.reveal-in { opacity: 1; transform: none; transition: none; }
	html { scroll-behavior: auto; }
}

/* Responsive */
@media (max-width: 480px) {
	.pf-hero-name { font-size: 1.6rem; }
	.pf-hero-title { font-size: 0.9rem; }
	.pf-section { padding: 60px 0; }
	.pf-about-stats { grid-template-columns: 1fr 1fr; gap: 10px; }
	.pf-stat { padding: 16px 12px; }
	.pf-stat-num { font-size: 1.6rem; }
	.pf-nav-links a:nth-child(4),
	.pf-nav-links a:nth-child(5) { display: none; }
}