@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
	color-scheme: dark;
	--bg: #06060a;
	--bg-2: #0b0c14;
	--ink: #eef0fb;
	--ink-dim: #9ba0c0;
	--ink-dimmer: #6c7093;
	--accent: #8b7bff;
	--accent-2: #ff5da2;
	--accent-3: #35d0ba;
	--line: rgba(255,255,255,0.09);
	--sidebar-w: 250px;
	--font-display: 'Space Grotesk', system-ui, sans-serif;
	--font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;
}

* { box-sizing: border-box; }

html, body {
	margin: 0;
	padding: 0;
	width: 100%;
	background: var(--bg);
	color: var(--ink);
	font-family: var(--font-display);
	-webkit-font-smoothing: antialiased;
}

a { color: inherit; }

/* faint carbon-fibre texture, matches sites/hurd */
body::before {
	content: '';
	position: fixed;
	inset: 0;
	z-index: 1;
	pointer-events: none;
	opacity: 0.5;
	background-image:
		repeating-linear-gradient(135deg, rgba(255,255,255,0.02) 0px, rgba(255,255,255,0.02) 1px, transparent 1px, transparent 6px),
		repeating-linear-gradient(45deg, rgba(255,255,255,0.015) 0px, rgba(255,255,255,0.015) 1px, transparent 1px, transparent 6px);
}

#hero-webgl { position: fixed; inset: 0; z-index: 0; }
#hero-webgl canvas { display: block; }

/* ---------------- sidebar ---------------- */
#sidebar {
	position: fixed;
	top: 0; left: 0; bottom: 0;
	width: var(--sidebar-w);
	z-index: 20;
	display: flex;
	flex-direction: column;
	background: var(--bg-2);
	border-right: 1px solid var(--line);
	padding: 26px 24px;
	overflow-y: auto;
}
.brand { display: flex; flex-direction: column; gap: 4px; margin-bottom: 34px; }
.brand-row { display: flex; align-items: center; gap: 8px; }
.brand-mark {
	font-family: var(--font-mono);
	font-size: 17px;
	font-weight: 500;
	letter-spacing: 0.01em;
	text-decoration: none;
	color: var(--ink);
}
.brand-mark::before { content: '> '; color: var(--accent); }
.brand-badge {
	font-family: var(--font-mono);
	font-size: 10px;
	color: var(--accent-3);
	border: 1px solid var(--line);
	border-radius: 999px;
	padding: 2px 8px;
}
.brand-tag { font-size: 11px; color: var(--ink-dimmer); letter-spacing: 0.06em; text-transform: uppercase; }

.side-nav { display: flex; flex-direction: column; gap: 26px; flex: 1; }
.side-group h3 {
	margin: 0 0 10px;
	font-size: 11px;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--ink-dimmer);
	font-weight: 500;
}
.side-group { display: flex; flex-direction: column; }
.side-group a {
	display: block;
	padding: 6px 0;
	font-size: 14px;
	color: var(--ink-dim);
	text-decoration: none;
	transition: color 0.15s ease, transform 0.15s ease;
}
.side-group a:hover { color: var(--accent-3); transform: translateX(2px); }

.side-foot { font-size: 11px; color: var(--ink-dimmer); padding-top: 18px; margin-top: 18px; border-top: 1px solid var(--line); }

/* ---------------- main ---------------- */
#main {
	position: relative;
	z-index: 10;
	margin-left: var(--sidebar-w);
	min-height: 100vh;
}

.topbar {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 22px 40px 0;
}
.crumb { font-family: var(--font-mono); font-size: 12px; color: var(--ink-dimmer); }
.crumb span { color: var(--accent); margin: 0 4px; }
.topbar-links a { display: flex; color: var(--ink-dimmer); transition: color 0.15s ease; }
.topbar-links a:hover { color: var(--ink); }

/* ---------------- hero ---------------- */
.hero {
	min-height: 86vh;
	display: flex;
	flex-direction: column;
	justify-content: center;
	padding: 40px 40px 60px;
	max-width: 920px;
}
.eyebrow {
	font-family: var(--font-mono);
	font-size: 12px;
	letter-spacing: 0.08em;
	color: var(--accent-3);
	margin-bottom: 18px;
	text-transform: uppercase;
}
.hero h1 {
	font-size: clamp(2.3rem, 5vw, 3.6rem);
	line-height: 1.08;
	letter-spacing: -0.02em;
	margin: 0 0 22px;
}
.hero h1 em {
	font-style: normal;
	background: linear-gradient(90deg, var(--accent), var(--accent-2));
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
}
.lede { font-size: 1.05rem; line-height: 1.6; color: var(--ink-dim); max-width: 560px; margin: 0 0 34px; }

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	padding: 13px 22px;
	border-radius: 999px;
	font-size: 14px;
	font-weight: 500;
	text-decoration: none;
	transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost { border: 1px solid var(--line); color: var(--ink-dim); background: rgba(255,255,255,0.02); }
.btn-ghost:hover { border-color: var(--accent); color: var(--ink); }

.hero-hint {
	margin-top: 48px;
	font-family: var(--font-mono);
	font-size: 11px;
	color: var(--ink-dimmer);
	letter-spacing: 0.04em;
}

/* ---------------- section shell ---------------- */
.projects, .about {
	position: relative;
	background: var(--bg);
	padding: 90px 40px;
	border-top: 1px solid var(--line);
}
.section-head { max-width: 640px; margin-bottom: 44px; display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.section-index { font-family: var(--font-mono); font-size: 12px; color: var(--ink-dimmer); }
.section-head h2 { font-size: 1.8rem; margin: 0; letter-spacing: -0.01em; }
.section-head p { margin: 0; color: var(--ink-dim); font-size: 0.95rem; flex-basis: 100%; }

/* ---------------- gallery grid ---------------- */
.gallery-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
	gap: 22px;
	max-width: 1180px;
}
.gallery-tile {
	display: flex;
	flex-direction: column;
	background: var(--bg-2);
	border: 1px solid var(--line);
	border-radius: 18px;
	overflow: hidden;
	text-decoration: none;
	color: inherit;
	will-change: transform;
	transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease-out;
}
.gallery-tile--featured { grid-column: span 2; flex-direction: row; }
.gallery-tile--featured .gallery-visual { flex: 0 0 42%; min-height: 220px; }
.gallery-tile--featured .gallery-body { flex: 1; }
a.gallery-tile:hover {
	border-color: var(--accent);
	box-shadow: 0 24px 60px -30px rgba(139,123,255,0.45);
}
.gallery-visual {
	position: relative;
	background:
		radial-gradient(circle at 30% 20%, rgba(139,123,255,0.18), transparent 55%),
		radial-gradient(circle at 80% 80%, rgba(255,93,162,0.14), transparent 55%),
		#0a0b12;
	min-height: 200px;
	display: flex;
	align-items: center;
	justify-content: center;
}
.node-graph { width: 78%; height: auto; color: var(--ink-dimmer); }
.node-graph .ng-edges line { stroke-width: 1; opacity: 0.5; }
.node-graph .ng-nodes circle { fill: var(--ink-dim); }
.node-graph .ng-nodes .ng-core { fill: var(--accent); }
.gallery-tile:hover .node-graph .ng-nodes circle { fill: var(--accent-3); }
.gallery-tile:hover .node-graph .ng-nodes .ng-core { fill: var(--accent-2); }
.gallery-badge {
	position: absolute;
	top: 16px;
	left: 16px;
	font-family: var(--font-mono);
	font-size: 10px;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--ink);
	background: rgba(6,6,10,0.6);
	border: 1px solid var(--line);
	padding: 5px 10px;
	border-radius: 999px;
}
.gallery-body { padding: 30px 30px 32px; display: flex; flex-direction: column; flex: 1; }
.gallery-kicker { font-family: var(--font-mono); font-size: 11px; color: var(--accent-3); letter-spacing: 0.04em; margin-bottom: 10px; }
.gallery-body h3 { margin: 0 0 12px; font-size: 1.4rem; display: flex; align-items: center; gap: 10px; }
.gallery-body h3 .arrow { transition: transform 0.2s ease; color: var(--accent); }
.gallery-tile:hover .gallery-body h3 .arrow { transform: translateX(4px); }
.gallery-body p { margin: 0 0 20px; color: var(--ink-dim); font-size: 0.92rem; line-height: 1.6; }
.gallery-body p a { color: var(--accent-3); }
.gallery-tags { display: flex; gap: 8px; margin-top: auto; }
.gallery-tags span {
	font-family: var(--font-mono);
	font-size: 11px;
	color: var(--ink-dimmer);
	border: 1px solid var(--line);
	padding: 4px 10px;
	border-radius: 999px;
}

/* ---------------- gallery: coming-soon tiles ---------------- */
.gallery-tile--soon { cursor: default; }
.gallery-tile--soon .gallery-visual {
	background: none;
	border-bottom: 1px dashed var(--line);
	min-height: 140px;
}
.gallery-visual--soon .soon-icon {
	font-family: var(--font-mono);
	font-size: 28px;
	color: var(--ink-dimmer);
	border: 1px dashed var(--line);
	width: 52px;
	height: 52px;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
}
.gallery-tile--soon { border-style: dashed; }
.gallery-tile--soon .gallery-body h3 { color: var(--ink-dim); font-size: 1.15rem; }

/* ---------------- about ---------------- */
.about p { max-width: 680px; color: var(--ink-dim); font-size: 1rem; line-height: 1.7; margin: 0 0 20px; }
.about a { color: var(--accent-3); }

/* ---------------- footer ---------------- */
#foot {
	display: flex;
	align-items: center;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 10px;
	padding: 26px 40px 40px;
	border-top: 1px solid var(--line);
	font-size: 12px;
	color: var(--ink-dimmer);
}
#foot a { color: var(--ink-dim); text-decoration: none; }
#foot a:hover { color: var(--accent-3); }

/* ---------------- floating action button ---------------- */
.fab {
	position: fixed;
	right: 24px;
	bottom: 24px;
	z-index: 30;
	display: flex;
	align-items: center;
	gap: 8px;
	padding: 12px 18px;
	border-radius: 999px;
	background: var(--ink);
	color: var(--bg);
	font-size: 13px;
	font-weight: 500;
	text-decoration: none;
	box-shadow: 0 12px 30px -10px rgba(0,0,0,0.6);
	transition: transform 0.15s ease;
}
.fab:hover { transform: translateY(-2px); }

/* ---------------- responsive ---------------- */
@media (max-width: 900px) {
	:root { --sidebar-w: 0px; }
	#sidebar {
		position: static;
		width: 100%;
		flex-direction: row;
		align-items: center;
		flex-wrap: wrap;
		gap: 18px;
		padding: 18px 20px;
		border-right: none;
		border-bottom: 1px solid var(--line);
	}
	.brand { margin-bottom: 0; }
	.side-nav { flex-direction: row; flex-wrap: wrap; gap: 20px; }
	.side-group { flex-direction: row; align-items: center; gap: 10px; }
	.side-group h3 { margin: 0; }
	.side-group a { padding: 4px 0; }
	.side-foot { display: none; }
	#main { margin-left: 0; }
	.topbar { padding: 20px 20px 0; }
	.hero { padding: 32px 20px 50px; min-height: auto; }
	.projects, .about { padding: 60px 20px; }
	.gallery-grid { grid-template-columns: 1fr; }
	.gallery-tile--featured { grid-column: span 1; flex-direction: column; }
	.gallery-tile--featured .gallery-visual { flex-basis: auto; width: 100%; min-height: 200px; }
	#foot { flex-direction: column; align-items: flex-start; padding: 22px 20px 90px; }
}

@media (max-width: 640px) {
	[data-tilt] { transform: none !important; }
}