/* pandasjs docs - dark theme with vscode-inspired colors */

:root {
	--bg: #0d1117;
	--bg-card: #161b22;
	--bg-code: #1c2128;
	--bg-nav: rgba(13, 17, 23, 0.85);
	--border: #30363d;
	--accent: #58a6ff;
	--accent-glow: rgba(88, 166, 255, 0.3);
	--green: #3fb950;
	--orange: #d29922;
	--purple: #bc8cff;
	--red: #f85149;
	--text: #e6edf3;
	--text-muted: #8b949e;
	--font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
	--font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
}

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

html {
	scroll-behavior: smooth;
	scrollbar-color: rgba(255, 255, 255, 0.15) transparent;
	scrollbar-width: thin;
}

::-webkit-scrollbar {
	height: 4px;
	width: 4px;
}

::-webkit-scrollbar-track {
	background: transparent;
}

::-webkit-scrollbar-thumb {
	background: rgba(255, 255, 255, 0.15);
	border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
	background: rgba(255, 255, 255, 0.25);
}

body {
	background: var(--bg);
	color: var(--text);
	font-family: var(--font-sans);
	line-height: 1.6;
}

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

a:hover {
	text-decoration: underline;
}

/* nav */
nav {
	align-items: center;
	backdrop-filter: blur(12px);
	background: var(--bg-nav);
	border-bottom: 1px solid var(--border);
	display: flex;
	justify-content: space-between;
	padding: 16px 40px;
	position: fixed;
	top: 0;
	width: 100%;
	z-index: 100;
}

nav .logo {
	align-items: center;
	color: var(--text);
	display: flex;
	font-family: var(--font-mono);
	font-size: 20px;
	font-weight: 700;
	gap: 8px;
}

nav .logo .logo-icon {
	height: 24px;
	width: 24px;
}

nav .logo span {
	color: var(--accent);
}

nav .links {
	display: flex;
	gap: 24px;
}

nav .links a {
	color: var(--text-muted);
	font-size: 14px;
	transition: color 0.2s;
}

nav .links a:hover {
	color: var(--text);
	text-decoration: none;
}

.tab {
	display: inline-block;
	width: 3em;
}

/* hero */
.hero {
	align-items: center;
	display: flex;
	flex-direction: column;
	justify-content: center;
	min-height: 50vh;
	overflow: hidden;
	padding: 110px 20px 20px;
	position: relative;
	text-align: center;
}

.hero::before {
	animation: glow 8s ease-in-out infinite;
	background: radial-gradient(ellipse 600px 400px at 50% 40%, var(--accent-glow), transparent);
	content: '';
	height: 100%;
	left: 0;
	pointer-events: none;
	position: absolute;
	top: 0;
	width: 100%;
}

@keyframes glow {

	0%,
	100% {
		opacity: 0.6;
		transform: scale(1);
	}

	50% {
		opacity: 1;
		transform: scale(1.1);
	}
}

.hero h1 {
	font-size: 64px;
	font-weight: 800;
	letter-spacing: -2px;
	line-height: 1.1;
	position: relative;
}

.hero h1 span {
	background: linear-gradient(135deg, var(--accent), var(--purple));
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
}

.hero .tagline {
	color: var(--text-muted);
	font-size: 20px;
	margin-top: 16px;
	position: relative;
}

.hero .install-snippet {
	background: var(--bg-code);
	border: 1px solid var(--border);
	border-radius: 8px;
	display: inline-block;
	font-family: var(--font-mono);
	font-size: 16px;
	margin-top: 32px;
	padding: 12px 24px;
	position: relative;
}

.hero .install-snippet .dollar {
	color: var(--text-muted);
}

.hero .cta {
	display: flex;
	gap: 16px;
	margin-top: 32px;
	position: relative;
}

.btn {
	border: none;
	border-radius: 8px;
	cursor: pointer;
	font-size: 16px;
	font-weight: 600;
	padding: 12px 28px;
	transition: all 0.2s;
}

.btn-primary {
	background: var(--accent);
	color: #fff;
}

.btn-primary:hover {
	box-shadow: 0 0 20px var(--accent-glow);
	filter: brightness(1.1);
	text-decoration: none;
}

.btn-secondary {
	background: var(--bg-card);
	border: 1px solid var(--border);
	color: var(--text);
}

.btn-secondary:hover {
	border-color: var(--accent);
	text-decoration: none;
}

/* sections */
section {
	margin: 0 auto;
	max-width: 1100px;
	padding: 40px;
}

section h2 {
	font-size: 36px;
	font-weight: 700;
	margin-bottom: 40px;
	text-align: center;
}

/* feature cards */
.features-grid {
	display: grid;
	gap: 20px;
	grid-template-columns: repeat(3, 1fr);
}

.feature-card {
	background: var(--bg-card);
	border: 1px solid var(--border);
	border-radius: 12px;
	padding: 28px;
	transition: all 0.3s;
}

.feature-card:hover {
	border-color: var(--accent);
	box-shadow: 0 0 24px rgba(88, 166, 255, 0.1);
	transform: translateY(-2px);
}

.feature-card .icon {
	font-size: 28px;
	margin-bottom: 12px;
}

.feature-card h3 {
	font-size: 18px;
	margin-bottom: 8px;
}

.feature-card p {
	color: var(--text-muted);
	font-size: 14px;
	line-height: 1.5;
}

/* code block */
.code-block {
	background: var(--bg-code);
	border: 1px solid var(--border);
	border-radius: 8px;
	font-family: var(--font-mono);
	font-size: 14px;
	line-height: 1.7;
	overflow-x: auto;
	padding: 20px 24px;
	position: relative;
}

.code-block .copy-btn {
	background: var(--bg-card);
	border: 1px solid var(--border);
	border-radius: 4px;
	color: var(--text-muted);
	cursor: pointer;
	font-size: 12px;
	opacity: 0;
	padding: 4px 8px;
	position: absolute;
	right: 8px;
	top: 8px;
	transition: opacity 0.2s;
}

.code-block:hover .copy-btn {
	opacity: 1;
}

/* syntax highlight token colors - monaco dark+ theme */
.kw {
	color: #569cd6;
}

.str {
	color: #ce9178;
}

.fn {
	color: #dcdcaa;
}

.num {
	color: #b5cea8;
}

.cm {
	color: #6a9955;
}

.op {
	color: #d4d4d4;
}

/* performance table */
.perf-table {
	border-collapse: collapse;
	margin: 0 auto;
	width: 100%;
}

.perf-table th {
	border-bottom: 2px solid var(--border);
	color: var(--text-muted);
	font-size: 13px;
	font-weight: 600;
	padding: 12px 16px;
	text-align: left;
	text-transform: uppercase;
}

.perf-table td {
	border-bottom: 1px solid var(--border);
	font-size: 15px;
	padding: 12px 16px;
}

.perf-table .ratio {
	color: var(--green);
	font-weight: 700;
}

/* footer */
footer {
	border-top: 1px solid var(--border);
	color: var(--text-muted);
	font-size: 14px;
	padding: 40px;
	text-align: center;
}

/* manual layout */
.manual-layout {
	display: flex;
	min-height: 100vh;
	padding-top: 60px;
}

.sidebar,
.sidebar-placeholder {
	height: calc(100vh - 60px);
	top: 60px;
	width: 200px;
}

.sidebar-placeholder {
	flex-shrink: 0;
}

.sidebar {
	border-right: 1px solid var(--border);
	overflow-y: auto;
	padding: 24px 16px;
	position: fixed;
}


.sidebar a {
	border-radius: 4px;
	color: var(--text-muted);
	display: block;
	font-size: 14px;
	padding: 6px 12px;
	transition: all 0.15s;
}

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

.sidebar a.active {
	background: rgba(88, 166, 255, 0.1);
	color: var(--accent);
}

.manual-content {
	flex-grow: 1;
	margin: 0 auto;
	max-width: 1200px;
	min-width: 0;
	overflow-x: auto;
}

.manual-content h2 {
	border-bottom: 1px solid var(--border);
	font-size: 28px;
	margin-bottom: 24px;
	margin-top: 60px;
	padding-bottom: 12px;
	text-align: left;
}

.manual-content h2:first-child {
	margin-top: 0;
}

.manual-content p {
	color: var(--text-muted);
	margin-bottom: 16px;
}

/* side by side code - JS left, Python right */
.code-compare {
	align-items: start;
	display: grid;
	gap: 16px;
	grid-template-columns: 1fr 1fr;
	margin: 20px 0 24px;
}

.code-compare .code-panel {
	display: flex;
	flex-direction: column;
	min-width: 0;
}

.code-panel .label {
	align-items: center;
	color: var(--text-muted);
	display: flex;
	font-size: 12px;
	font-weight: 600;
	gap: 8px;
	justify-content: space-between;
	margin-bottom: 6px;
	text-transform: uppercase;
}

.code-panel .label .lang {
	color: var(--orange);
}

.code-panel .run-btn {
	align-items: center;
	background: none;
	border: none;
	color: var(--accent);
	cursor: pointer;
	display: flex;
	font-size: 12px;
	gap: 4px;
	padding: 0;
}

.code-panel .run-btn:hover {
	filter: brightness(1.3);
}

.code-panel .run-btn:disabled {
	color: var(--text-muted);
	cursor: default;
	filter: none;
	opacity: 0.5;
}

.code-panel .run-btn .play-icon {
	display: inline-block;
	font-size: 10px;
}

.code-panel pre {
	background: var(--bg-code);
	border: 1px solid var(--border);
	border-radius: 6px 6px 0 0;
	font-family: var(--font-mono);
	font-size: 13px;
	line-height: 1.6;
	outline: none;
	overflow: auto;
	padding: 14px 16px;
}

.code-panel pre:focus {
	border-color: var(--accent);
}

.code-panel .output-block {
	background: #0e1116;
	border: 1px solid var(--border);
	border-radius: 0 0 6px 6px;
	border-top: none;
	color: var(--green);
	font-family: var(--font-mono);
	font-size: 12px;
	line-height: 1.5;
	max-height: 200px;
	min-height: 28px;
	overflow-y: auto;
	padding: 10px 14px;
	white-space: pre-wrap;
}

.code-panel .output-block.loading {
	color: var(--text-muted);
}

.code-panel .output-block.error {
	color: var(--red);
}

.code-panel .output-block.empty {
	color: var(--text-muted);
	font-style: italic;
}

/* install tabs */
.install-tabs {
	display: flex;
	gap: 0;
	margin-bottom: -1px;
}

.install-tabs button {
	background: var(--bg);
	border: 1px solid var(--border);
	border-bottom: none;
	border-radius: 6px 6px 0 0;
	color: var(--text-muted);
	cursor: pointer;
	font-size: 13px;
	padding: 8px 16px;
}

.install-tabs button.active {
	background: var(--bg-code);
	color: var(--text);
}

/* responsive */
@media (max-width: 1200px) {

	.sidebar,
	.sidebar-placeholder {
		display: none;
	}

	.manual-content {
		margin-left: 0;
		padding: 40px 20px;
	}

	nav {
		padding: 12px 20px;
	}
}

@media (max-width: 768px) {
	.features-grid {
		grid-template-columns: 1fr;
	}

	.code-compare {
		grid-template-columns: 1fr;
	}

	.hero h1 {
		font-size: 40px;
	}

	/* 
	nav {
		padding: 12px 20px;
	} */

	section {
		padding: 60px 20px;
	}

	.sidebar,
	.sidebar-placeholder {
		display: none;
	}

	/* .manual-content {
		margin-left: 0;
		padding: 40px 20px;
	} */
}