:root {
	--bg: #0b0d12;
	--bg-elev: #141821;
	--bg-elev-2: #1c2230;
	--border: #262c3a;
	--border-strong: #323a4d;
	--text: #e8ebf2;
	--text-dim: #9aa3b5;
	--accent: #7aa2f7;
	--accent-2: #b48aff;
	--accent-hover: #a4bffc;
	--radius: 12px;
	--radius-lg: 16px;
	--max: 1100px;
	--shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
	--shadow-md: 0 8px 24px rgba(0,0,0,0.25);
}

* { box-sizing: border-box; }

html, body {
	margin: 0;
	padding: 0;
	background: var(--bg);
	color: var(--text);
	font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
	font-feature-settings: "cv11", "ss01", "ss03";
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

::selection {
	background: rgba(122, 162, 247, 0.35);
	color: var(--text);
}

a {
	color: var(--accent);
	text-decoration: none;
}
a:hover { color: var(--accent-hover); }

/* ---------- Nav ---------- */
.nav {
	position: sticky;
	top: 0;
	z-index: 50;
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 1rem 2rem;
	background: rgba(11, 13, 18, 0.75);
	backdrop-filter: blur(14px);
	-webkit-backdrop-filter: blur(14px);
	border-bottom: 1px solid var(--border);
}
.nav-brand {
	font-weight: 600;
	color: var(--text);
	letter-spacing: -0.01em;
}
.nav-links {
	display: flex;
	gap: 1.5rem;
	align-items: center;
}
.nav-links a {
	color: var(--text-dim);
	font-size: 0.95rem;
	transition: color 0.15s;
}
.nav-links a:hover { color: var(--text); }
.nav-links a.nav-active { color: var(--accent); }

.nav-toggle {
	display: none;
	background: transparent;
	border: 1px solid var(--border);
	color: var(--text);
	width: 40px;
	height: 40px;
	border-radius: 8px;
	cursor: pointer;
	padding: 0;
	align-items: center;
	justify-content: center;
}
.nav-toggle svg { display: block; }

/* ---------- Hero ---------- */
.hero {
	position: relative;
	padding: 6rem 2rem 5rem;
	border-bottom: 1px solid var(--border);
	overflow: hidden;
	isolation: isolate;
}
.hero::before {
	content: "";
	position: absolute;
	inset: -20% -10% auto -10%;
	height: 120%;
	background:
		radial-gradient(60% 55% at 20% 25%, rgba(122, 162, 247, 0.18), transparent 70%),
		radial-gradient(45% 45% at 85% 15%, rgba(180, 138, 255, 0.14), transparent 70%);
	pointer-events: none;
	z-index: -1;
}
.hero::after {
	content: "";
	position: absolute;
	inset: 0;
	background-image:
		linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
		linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
	background-size: 56px 56px;
	mask-image: radial-gradient(ellipse at top, black 40%, transparent 75%);
	-webkit-mask-image: radial-gradient(ellipse at top, black 40%, transparent 75%);
	pointer-events: none;
	z-index: -1;
}
.hero-inner {
	max-width: var(--max);
	margin: 0 auto;
}
.eyebrow {
	color: var(--accent);
	font-size: 0.9rem;
	font-weight: 500;
	margin: 0 0 0.75rem;
	letter-spacing: 0.04em;
	text-transform: uppercase;
}
.hero h1 {
	font-size: clamp(2rem, 5.2vw, 3.4rem);
	line-height: 1.1;
	margin: 0 0 1.25rem;
	max-width: 900px;
	letter-spacing: -0.025em;
	font-weight: 700;
	background: linear-gradient(180deg, #ffffff 0%, #c9d1e4 100%);
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
}
.lede {
	color: var(--text-dim);
	max-width: 640px;
	font-size: 1.1rem;
	margin: 0 0 2.5rem;
}
.lede--tight { margin-bottom: 2.5rem; }

/* ---------- Chat (shared) ---------- */
.chat-hero { max-width: 720px; }

.chat-form {
	display: flex;
	gap: 0.5rem;
	background: var(--bg-elev);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 0.5rem;
	transition: border-color 0.15s;
}
.chat-form:focus-within {
	border-color: var(--accent);
}
.chat-form input {
	flex: 1;
	background: transparent;
	border: none;
	outline: none;
	color: var(--text);
	font-size: 1rem;
	padding: 0.5rem 0.75rem;
	font-family: inherit;
}
.chat-form input::placeholder { color: var(--text-dim); }
.chat-form button[type="submit"] {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	background: var(--accent);
	color: #0b0d12;
	border: none;
	border-radius: 8px;
	cursor: pointer;
	transition: background 0.15s;
}
.chat-form button[type="submit"]:hover { background: var(--accent-hover); }
.chat-form button[type="submit"]:disabled {
	opacity: 0.5;
	cursor: not-allowed;
}

.suggestions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin-top: 1rem;
}
.chip {
	background: var(--bg-elev);
	border: 1px solid var(--border);
	color: var(--text-dim);
	padding: 0.5rem 0.9rem;
	border-radius: 999px;
	font-size: 0.85rem;
	cursor: pointer;
	font-family: inherit;
	transition: all 0.15s;
}
.chip:hover {
	border-color: var(--accent);
	color: var(--text);
}

.hero-response {
	margin-top: 1.5rem;
	padding: 1.25rem 1.5rem;
	background: var(--bg-elev);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	white-space: pre-wrap;
	font-size: 1rem;
}

/* ---------- Sections ---------- */
.section {
	max-width: var(--max);
	margin: 0 auto;
	padding: 5rem 2rem;
	border-bottom: 1px solid var(--border);
}
.section h2 {
	font-size: 1.9rem;
	margin: 0 0 2rem;
	letter-spacing: -0.02em;
	font-weight: 700;
	position: relative;
	padding-left: 1rem;
}
.section h2::before {
	content: "";
	position: absolute;
	left: 0;
	top: 0.35em;
	bottom: 0.35em;
	width: 3px;
	border-radius: 2px;
	background: linear-gradient(180deg, var(--accent), var(--accent-2));
}

/* ---------- Projects ---------- */
.grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
	gap: 1.25rem;
}
.card {
	position: relative;
	background: var(--bg-elev);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 1.5rem;
	transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
	overflow: hidden;
}
.card::before {
	content: "";
	position: absolute;
	inset: 0;
	border-radius: inherit;
	padding: 1px;
	background: linear-gradient(135deg, rgba(122,162,247,0.5), rgba(180,138,255,0.3));
	-webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
	mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
	-webkit-mask-composite: xor;
	mask-composite: exclude;
	opacity: 0;
	transition: opacity 0.2s;
	pointer-events: none;
}
.card:hover {
	transform: translateY(-3px);
	box-shadow: var(--shadow-md);
}
.card:hover::before { opacity: 1; }
.card.featured {
	background: linear-gradient(180deg, var(--bg-elev), var(--bg-elev-2));
	border-color: var(--border-strong);
}
.card.featured::after {
	content: "Featured";
	position: absolute;
	top: 1rem;
	right: 1rem;
	font-size: 0.7rem;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	padding: 0.2rem 0.5rem;
	border-radius: 999px;
	background: rgba(122, 162, 247, 0.12);
	color: var(--accent);
	border: 1px solid rgba(122, 162, 247, 0.3);
}
.card h3 {
	margin: 0 0 0.5rem;
	font-size: 1.1rem;
	letter-spacing: -0.01em;
}
.card p {
	color: var(--text-dim);
	margin: 0.5rem 0;
	font-size: 0.95rem;
}
.card-tags {
	color: var(--accent);
	font-size: 0.78rem;
	margin-top: 1rem !important;
	letter-spacing: 0.02em;
}
.card-link {
	display: inline-block;
	margin-top: 0.75rem;
	font-size: 0.85rem;
	color: var(--accent);
	text-decoration: none;
	opacity: 0.85;
	transition: opacity 0.15s, transform 0.15s;
}
.card-link:hover { opacity: 1; transform: translateX(2px); }

/* ---------- About ---------- */
.about-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
	gap: 2rem;
}
.about-grid h3 {
	font-size: 1rem;
	margin: 0 0 0.5rem;
	color: var(--accent);
}
.about-grid p {
	color: var(--text-dim);
	margin: 0;
	font-size: 0.95rem;
}

/* ---------- Tab cards (homepage site map) ---------- */
.tab-cards {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
	gap: 1rem;
	margin-top: 1.5rem;
}
.tab-card {
	display: block;
	padding: 1.25rem 1.4rem;
	background: var(--bg-elev);
	border: 1px solid var(--border);
	border-radius: 12px;
	text-decoration: none;
	color: inherit;
	transition: border-color 0.15s, transform 0.15s, background 0.15s;
}
.tab-card:hover {
	border-color: var(--accent);
	background: var(--bg-elev-2);
	transform: translateY(-2px);
}
.tab-card h3 {
	margin: 0 0 0.5rem;
	font-size: 1rem;
	color: var(--accent);
}
.tab-card p {
	margin: 0;
	font-size: 0.92rem;
	color: var(--text-dim);
	line-height: 1.5;
}
.badge-soon {
	display: inline-block;
	margin-top: 0.6rem;
	padding: 0.1rem 0.5rem;
	font-size: 0.7rem;
	font-weight: 600;
	letter-spacing: 0.03em;
	text-transform: uppercase;
	color: var(--accent-2);
	background: rgba(180, 138, 255, 0.12);
	border: 1px solid rgba(180, 138, 255, 0.35);
	border-radius: 999px;
	vertical-align: middle;
}

/* ---------- Coming soon box ---------- */
.coming-soon {
	max-width: 520px;
	margin: 4rem auto;
	padding: 2.5rem 2rem;
	text-align: center;
	background: var(--bg-elev);
	border: 1px solid var(--border);
	border-radius: 16px;
}
.coming-soon h2 {
	margin: 0 0 0.75rem;
	font-size: 1.5rem;
}
.coming-soon p {
	margin: 0;
	color: var(--text-dim);
	font-size: 0.95rem;
	line-height: 1.6;
}

/* ---------- About page ---------- */
.about-page { max-width: 820px; }
.about-header {
	display: grid;
	grid-template-columns: 180px 1fr;
	gap: 2rem;
	align-items: center;
	margin-bottom: 3rem;
}
@media (max-width: 640px) {
	.about-header { grid-template-columns: 1fr; text-align: center; }
	.about-photo { margin: 0 auto; }
}
.about-photo {
	width: 180px;
	height: 180px;
	border-radius: 50%;
	overflow: hidden;
	background: var(--bg-elev);
	border: 1px solid var(--border);
	position: relative;
}
.about-photo::after {
	content: "";
	position: absolute;
	inset: 0;
	border-radius: 50%;
	box-shadow: 0 0 40px rgba(59, 107, 217, 0.25);
	pointer-events: none;
}
.about-photo img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}
.about-intro h1 {
	font-size: 2.5rem;
	margin: 0.25rem 0 0.75rem;
	letter-spacing: -0.02em;
}
.about-cta {
	display: flex;
	flex-wrap: wrap;
	gap: 0.6rem;
	margin-top: 1.25rem;
}
.btn-primary, .btn-ghost {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	padding: 0.65rem 1.1rem;
	border-radius: 8px;
	font-size: 0.9rem;
	font-weight: 600;
	text-decoration: none;
	transition: transform 0.1s, background 0.15s, border-color 0.15s;
}
.btn-primary {
	background: var(--accent);
	color: #0b0d12;
}
.btn-primary:hover { background: var(--accent-hover, #8fb2ff); transform: translateY(-1px); }
.btn-ghost {
	background: transparent;
	color: var(--text);
	border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.about-sections {
	display: flex;
	flex-direction: column;
	gap: 2.5rem;
}
.about-block h2 {
	font-size: 1.25rem;
	margin: 0 0 0.9rem;
	letter-spacing: -0.01em;
}
.about-block p {
	margin: 0 0 0.9rem;
	color: var(--text-dim);
	line-height: 1.65;
}
.about-list {
	margin: 0;
	padding-left: 1.1rem;
	display: flex;
	flex-direction: column;
	gap: 0.7rem;
	color: var(--text-dim);
	line-height: 1.55;
}
.about-list strong { color: var(--text); font-weight: 600; }
.about-stack {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
	gap: 1.25rem;
}
.about-stack h3 {
	font-size: 0.8rem;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: var(--accent);
	margin: 0 0 0.4rem;
}
.about-stack p {
	margin: 0;
	font-size: 0.92rem;
}
.about-footer-cta {
	margin-top: 3.5rem;
	padding-top: 2rem;
	border-top: 1px solid var(--border);
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
	align-items: center;
}

/* ---------- Keystroke Sandbox ---------- */
.ks-status {
	display: flex;
	align-items: center;
	gap: 0.6rem;
	padding: 0.6rem 0.9rem;
	background: var(--bg-elev);
	border: 1px solid var(--border);
	border-radius: 999px;
	font-size: 0.85rem;
	color: var(--text-dim);
	margin: 0 0 1.25rem;
	width: fit-content;
}
.ks-status-dot {
	width: 8px;
	height: 8px;
	border-radius: 50%;
	background: var(--accent);
	box-shadow: 0 0 8px var(--accent);
	animation: ks-pulse 1.6s ease-in-out infinite;
}
.ks-status[data-tone="ready"] .ks-status-dot { background: #4ade80; box-shadow: 0 0 8px #4ade80; animation: none; }
.ks-status[data-tone="error"] .ks-status-dot { background: #f87171; box-shadow: 0 0 8px #f87171; animation: none; }
.ks-status[data-tone="working"] .ks-status-dot { background: var(--accent-2); box-shadow: 0 0 8px var(--accent-2); }
@keyframes ks-pulse {
	0%, 100% { opacity: 1; transform: scale(1); }
	50%      { opacity: 0.5; transform: scale(1.4); }
}

.ks-tabs {
	display: inline-flex;
	background: var(--bg-elev);
	border: 1px solid var(--border);
	border-radius: 999px;
	padding: 4px;
	margin: 0 0 1.5rem;
}
.ks-tab {
	background: transparent;
	border: none;
	color: var(--text-dim);
	padding: 0.55rem 1.1rem;
	border-radius: 999px;
	cursor: pointer;
	font-family: inherit;
	font-size: 0.9rem;
	font-weight: 500;
	transition: color 0.15s, background 0.15s;
}
.ks-tab:hover { color: var(--text); }
.ks-tab.active {
	background: var(--bg-elev-2);
	color: var(--text);
	box-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.ks-panel { animation: ks-fade 0.2s ease; }
@keyframes ks-fade {
	from { opacity: 0; transform: translateY(4px); }
	to   { opacity: 1; transform: none; }
}
.ks-panel-hint {
	color: var(--text-dim);
	margin: 0 0 1rem;
	font-size: 0.95rem;
	max-width: 640px;
}

.ks-textarea {
	width: 100%;
	background: var(--bg-elev);
	color: var(--text);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 0.85rem 1rem;
	font-family: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
	font-size: 0.95rem;
	line-height: 1.5;
	resize: vertical;
	transition: border-color 0.15s;
	outline: none;
}
.ks-textarea:focus { border-color: var(--accent); }

.ks-meta {
	display: flex;
	align-items: center;
	gap: 0.75rem;
	margin: 0.75rem 0 1.25rem;
	flex-wrap: wrap;
}
.ks-spacer { flex: 1; }
.ks-counter {
	color: var(--text-dim);
	font-size: 0.82rem;
	font-variant-numeric: tabular-nums;
}
.ks-speed {
	color: var(--text-dim);
	font-size: 0.85rem;
	display: inline-flex;
	align-items: center;
	gap: 0.4rem;
}
.ks-speed select {
	background: var(--bg-elev);
	color: var(--text);
	border: 1px solid var(--border);
	border-radius: 8px;
	padding: 0.3rem 0.5rem;
	font-family: inherit;
	font-size: 0.85rem;
}

.ks-btn {
	background: var(--accent);
	color: #0b0d12;
	border: none;
	border-radius: 8px;
	padding: 0.55rem 1rem;
	cursor: pointer;
	font-family: inherit;
	font-size: 0.9rem;
	font-weight: 600;
	transition: background 0.15s, transform 0.1s;
}
.ks-btn:hover:not(:disabled) { background: var(--accent-hover); }
.ks-btn:active:not(:disabled) { transform: scale(0.97); }
.ks-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.ks-btn-ghost {
	background: transparent;
	color: var(--text-dim);
	border: 1px solid var(--border);
}
.ks-btn-ghost:hover:not(:disabled) {
	background: var(--bg-elev);
	color: var(--text);
}

/* Playback area */
.ks-playback {
	min-height: 100px;
	background: var(--bg-elev);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 1.25rem 1.4rem;
	font-family: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
	font-size: 1.05rem;
	line-height: 1.8;
	letter-spacing: 0.01em;
	word-break: break-word;
	white-space: pre-wrap;
}
.ks-char {
	display: inline-block;
	opacity: 0;
	transform: translateY(-4px);
	transition: opacity 0.08s ease, transform 0.08s ease, color 0.25s ease, text-shadow 0.25s ease;
	color: var(--accent);
	text-shadow: 0 0 12px rgba(122, 162, 247, 0.6);
}
.ks-char-pressed {
	opacity: 1;
	transform: none;
}
.ks-char-released {
	opacity: 1;
	transform: none;
	color: var(--text);
	text-shadow: none;
}
.ks-char-space { min-width: 0.5ch; }

/* Stats */
.ks-stats {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
	gap: 1rem;
	margin-top: 1.25rem;
}
.ks-stat {
	background: var(--bg-elev);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 0.9rem 1rem;
	display: flex;
	flex-direction: column;
	gap: 0.3rem;
}
.ks-stat-label {
	color: var(--text-dim);
	font-size: 0.75rem;
	text-transform: uppercase;
	letter-spacing: 0.06em;
}
.ks-stat-value {
	color: var(--text);
	font-size: 1.3rem;
	font-weight: 600;
	font-variant-numeric: tabular-nums;
}
.ks-stat-big .ks-stat-value {
	font-size: 2.5rem;
	background: linear-gradient(180deg, var(--accent), var(--accent-2));
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
}
.ks-verdict {
	margin: 0.5rem 0 0;
	font-size: 0.85rem;
	line-height: 1.5;
	color: var(--text-dim);
}
.ks-verdict strong {
	color: var(--text);
	font-weight: 600;
}

/* Compare results */
.ks-compare-results { margin-top: 1rem; }
.ks-compare-summary {
	display: grid;
	grid-template-columns: minmax(180px, 1fr) 2fr;
	gap: 1.25rem;
	align-items: center;
	margin-bottom: 2rem;
}
@media (max-width: 640px) {
	.ks-compare-summary { grid-template-columns: 1fr; }
}
.ks-compare-grid {
	background: var(--bg-elev);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	overflow: hidden;
}
.ks-compare-row {
	display: grid;
	grid-template-columns: 1.2fr 1fr 1fr;
	padding: 0.7rem 1rem;
	font-size: 0.95rem;
	border-bottom: 1px solid var(--border);
	align-items: center;
	font-variant-numeric: tabular-nums;
}
.ks-compare-row:last-child { border-bottom: none; }
.ks-compare-row span:first-child { color: var(--text-dim); }
.ks-compare-head {
	background: var(--bg-elev-2);
	color: var(--text-dim);
	font-size: 0.75rem;
	text-transform: uppercase;
	letter-spacing: 0.06em;
}

/* Per-char chart */
.ks-chart-wrap {
	background: var(--bg-elev);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	padding: 1.25rem;
}
.ks-chart-header {
	display: flex;
	align-items: center;
	gap: 1rem;
	margin-bottom: 1rem;
	flex-wrap: wrap;
}
.ks-chart-header h3 {
	margin: 0;
	font-size: 1rem;
	letter-spacing: -0.01em;
}
.ks-legend {
	display: flex;
	gap: 1rem;
	font-size: 0.82rem;
	color: var(--text-dim);
	margin-left: auto;
}
.ks-legend-item { display: inline-flex; align-items: center; gap: 0.35rem; }
.ks-swatch {
	display: inline-block;
	width: 10px;
	height: 10px;
	border-radius: 2px;
}
.ks-swatch-you { background: var(--accent); }
.ks-swatch-model { background: var(--accent-2); }
.ks-chart-toggle {
	display: inline-flex;
	background: var(--bg);
	border: 1px solid var(--border);
	border-radius: 999px;
	padding: 3px;
}
.ks-chip {
	background: transparent;
	border: none;
	color: var(--text-dim);
	padding: 0.35rem 0.8rem;
	font-size: 0.8rem;
	font-family: inherit;
	border-radius: 999px;
	cursor: pointer;
	transition: color 0.15s, background 0.15s;
}
.ks-chip.active {
	background: var(--bg-elev-2);
	color: var(--text);
}

.ks-chart {
	display: flex;
	flex-direction: column;
	gap: 4px;
	max-height: 400px;
	overflow-y: auto;
	padding-right: 0.5rem;
}
.ks-chart-row {
	display: grid;
	grid-template-columns: 2ch 1fr;
	align-items: center;
	gap: 0.6rem;
	font-family: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
}
.ks-chart-label {
	color: var(--text-dim);
	font-size: 0.8rem;
	text-align: center;
}
.ks-chart-bars {
	display: flex;
	flex-direction: column;
	gap: 2px;
	min-width: 0;
}
.ks-bar {
	height: 8px;
	border-radius: 2px;
	transition: width 0.35s cubic-bezier(.2,.9,.2,1);
	min-width: 1px;
}
.ks-bar-you   { background: var(--accent); }
.ks-bar-model { background: var(--accent-2); opacity: 0.85; }


/* ---------- Footer ---------- */
.footer {
	max-width: var(--max);
	margin: 0 auto;
	padding: 4rem 2rem;
	text-align: center;
}
.footer h2 {
	margin: 0 0 1rem;
}
.footer p {
	margin: 0.25rem 0;
	color: var(--text-dim);
}
.footnote {
	margin-top: 2rem !important;
	font-size: 0.85rem;
	color: var(--text-dim);
	opacity: 0.7;
}

/* ---------- Floating bubble ---------- */
.chat-bubble {
	position: fixed;
	bottom: 1rem;
	right: 1rem;
	width: 80px;
	height: 80px;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.08);
	border: 1px solid rgba(255, 255, 255, 0.15);
	cursor: pointer;
	box-shadow: 0 0 16px rgba(255, 255, 255, 0.08);
	z-index: 100;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: transform 0.15s;
	overflow: hidden;
	padding: 0;
}
.chat-bubble:hover { transform: scale(1.08); }
.chat-bubble img {
	width: 120%;
	height: 120%;
	object-fit: cover;
	object-position: 75% center;
}
.bubble-fallback {
	color: var(--text);
	font-weight: 600;
	font-size: 0.85rem;
}
.chat-bubble img:not([style*="display: none"]) + .bubble-fallback {
	display: none;
}

/* ---------- Chat panel ---------- */
.chat-panel {
	position: fixed;
	bottom: 6.5rem;
	right: 1rem;
	width: min(400px, calc(100vw - 3rem));
	height: min(560px, calc(100vh - 9rem));
	background: var(--bg-elev);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
	z-index: 99;
	display: flex;
	flex-direction: column;
	overflow: hidden;
}
.chat-panel[hidden] {
	display: none;
}
.chat-panel-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 1rem 1.25rem;
	border-bottom: 1px solid var(--border);
	background: var(--bg-elev-2);
}
.chat-panel-header button {
	background: transparent;
	border: none;
	color: var(--text-dim);
	font-size: 1.5rem;
	cursor: pointer;
	line-height: 1;
}
.chat-panel-header button:hover { color: var(--text); }

.chat-log {
	flex: 1;
	overflow-y: auto;
	padding: 1rem 1.25rem;
	display: flex;
	flex-direction: column;
	gap: 0.75rem;
}
.chat-log .msg {
	padding: 0.7rem 0.95rem;
	border-radius: 12px;
	font-size: 0.95rem;
	white-space: pre-wrap;
	max-width: 85%;
	line-height: 1.5;
}
.chat-log .msg.user {
	background: var(--accent);
	color: #0b0d12;
	align-self: flex-end;
}
.chat-log .msg.bot {
	background: var(--bg-elev-2);
	color: var(--text);
	align-self: flex-start;
}
.panel-form {
	border-radius: 0;
	border: none;
	border-top: 1px solid var(--border);
	padding: 0.75rem;
}

/* ---------- Scroll-reveal ---------- */
.reveal {
	opacity: 0;
	transform: translateY(22px);
	transition: opacity 0.45s ease, transform 0.45s ease;
}
.reveal.visible {
	opacity: 1;
	transform: none;
}

/* ---------- Typing indicator ---------- */
.msg.bot.typing::after {
	content: '';
	display: inline-block;
	width: 0.65em;
	height: 0.65em;
	margin-left: 4px;
	border-radius: 50%;
	background: var(--text-dim);
	animation: blink 0.8s step-start infinite;
	vertical-align: middle;
}
@keyframes blink {
	0%, 100% { opacity: 1; }
	50% { opacity: 0; }
}

/* hero response typing cursor */
.hero-response.streaming::after {
	content: '▋';
	animation: blink 0.8s step-start infinite;
	color: var(--accent);
}

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
	.nav { padding: 0.85rem 1.25rem; }
	.nav-toggle { display: inline-flex; }
	.nav-links {
		position: absolute;
		top: 100%;
		left: 0;
		right: 0;
		flex-direction: column;
		align-items: stretch;
		gap: 0;
		padding: 0.5rem 1.25rem 1rem;
		background: rgba(11, 13, 18, 0.96);
		backdrop-filter: blur(14px);
		-webkit-backdrop-filter: blur(14px);
		border-bottom: 1px solid var(--border);
		transform: translateY(-8px);
		opacity: 0;
		visibility: hidden;
		transition: opacity 0.15s, transform 0.15s, visibility 0.15s;
	}
	.nav.nav-open .nav-links {
		opacity: 1;
		visibility: visible;
		transform: none;
	}
	.nav-links a {
		padding: 0.65rem 0.25rem;
		border-bottom: 1px solid var(--border);
		font-size: 1rem;
	}
	.nav-links a:last-child { border-bottom: none; }
	.hero { padding: 3.5rem 1.25rem 3rem; }
	.section { padding: 3rem 1.25rem; }
	.footer { padding: 3rem 1.25rem; }
}