:root {
  --bg: #fff;
  --text: #111;
  --muted: #555;
  --sidebar-bg: #fafafa;
  --border: #e5e5e5;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --code-bg: #f5f5f5;
  --pre-bg: #1e1e2e;
  --pre-text: #cdd6f4;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0d0d;
    --text: #e0e0e0;
    --muted: #999;
    --sidebar-bg: #141414;
    --border: #2a2a2a;
    --accent: #818cf8;
    --accent-hover: #a5b4fc;
    --code-bg: #1e1e1e;
    --pre-bg: #161616;
    --pre-text: #cdd6f4;
  }
}

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

html { font-size: 16px; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ── */

.sidebar {
  width: 248px;
  min-height: 100vh;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  padding: 0 0 40px;
  position: fixed;
  top: 0;
  left: 0;
  overflow-y: auto;
  flex-shrink: 0;
}

.sidebar-logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 22px 20px 18px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}

.sidebar-logo a {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: -0.3px;
}

.sidebar-logo .ver {
  font-size: 11px;
  color: var(--muted);
  font-weight: 400;
}

.sidebar nav { padding: 0 10px; }

.nav-section {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
  padding: 14px 10px 4px;
}

.sidebar nav ul { list-style: none; }

.sidebar nav ul li a {
  display: block;
  padding: 5px 10px;
  border-radius: 6px;
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
}

.sidebar nav ul li a:hover {
  background: var(--border);
  color: var(--accent);
}

/* ── Main content ── */

.main {
  margin-left: 248px;
  padding: 52px 72px 80px;
  max-width: 860px;
  width: 100%;
  min-height: 100vh;
}

/* ── Typography ── */

h1 {
  font-size: 2.1em;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
  line-height: 1.2;
}

h2 {
  font-size: 1.35em;
  font-weight: 600;
  margin: 40px 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  letter-spacing: -0.2px;
}

h3 {
  font-size: 1.05em;
  font-weight: 600;
  margin: 28px 0 8px;
}

p { margin-bottom: 16px; }

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

ul, ol { padding-left: 24px; margin-bottom: 16px; }
li { margin-bottom: 5px; }

strong { font-weight: 600; }

code {
  font-family: "JetBrains Mono", "Fira Code", "Cascadia Code", ui-monospace, monospace;
  font-size: 0.85em;
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

pre {
  background: var(--pre-bg);
  border-radius: 10px;
  padding: 18px 22px;
  overflow-x: auto;
  margin-bottom: 22px;
  line-height: 1.55;
}

pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 13.5px;
  color: var(--pre-text);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 22px;
  font-size: 14px;
}

th {
  text-align: left;
  padding: 10px 16px;
  background: var(--sidebar-bg);
  border: 1px solid var(--border);
  font-weight: 600;
}

td {
  padding: 10px 16px;
  border: 1px solid var(--border);
  vertical-align: top;
}

blockquote {
  border-left: 3px solid var(--accent);
  background: var(--code-bg);
  border-radius: 0 8px 8px 0;
  padding: 14px 20px;
  margin-bottom: 20px;
  color: var(--muted);
  font-style: italic;
}

blockquote p { margin-bottom: 0; }

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 36px 0;
}

/* ── Hero (home page) ── */

.hero {
  padding: 24px 0 40px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 40px;
}

.hero h1 { font-size: 2.6em; margin-bottom: 14px; }

.hero .tagline {
  font-size: 1.15em;
  color: var(--muted);
  margin-bottom: 28px;
  max-width: 500px;
}

.install-block {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--pre-bg);
  border-radius: 10px;
  padding: 14px 20px;
  max-width: 520px;
  margin-bottom: 28px;
}

.install-block code {
  background: none;
  border: none;
  color: var(--pre-text);
  font-size: 14px;
  flex: 1;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 9px 20px;
  border-radius: 7px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
}

.btn:hover { background: var(--accent-hover); color: #fff; text-decoration: none; }

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  margin-left: 8px;
}

.btn-outline:hover { background: var(--border); color: var(--text); }

/* ── Feature grid ── */

.features {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin: 32px 0;
}

.feature-card {
  background: var(--sidebar-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}

.feature-card h3 {
  margin: 0 0 6px;
  font-size: 0.95em;
}

.feature-card p {
  font-size: 13.5px;
  color: var(--muted);
  margin: 0;
}

/* ── Callout ── */

.callout {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
  padding: 14px 20px;
  margin-bottom: 20px;
  font-size: 14px;
}

.callout p { margin: 0; }

/* ── Responsive ── */

@media (max-width: 768px) {
  .sidebar { display: none; }
  .main { margin-left: 0; padding: 28px 20px 60px; }
  h1 { font-size: 1.8em; }
  .hero h1 { font-size: 2em; }
  .features { grid-template-columns: 1fr; }
}