:root {
  --bg: #141618;
  --bg2: #1a1d20;
  --bg3: #1e2124;
  --surface: #242729;
  --border: #2e3235;
  --text: #d4d6d8;
  --text-dim: #8a8f94;
  --text-bright: #f0f1f2;
  --accent: #4a9eed;
  --accent-dim: #3a7bc8;
  --float: #3fc03f;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 64px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) var(--bg);
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent); color: var(--bg); }

/* ─── NAV ─── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 2rem;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(20, 22, 24, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-bright);
  letter-spacing: -0.02em;
  text-decoration: none;
}
.logo span { color: var(--accent); }
.logo .sub { color: var(--text-dim); font-weight: 400; font-size: 0.85rem; }
.nav-links { display: flex; gap: 1.8rem; align-items: center; }
.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text-bright); }
.nav-links a.active { color: var(--accent); }

.nav-hamburger {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  width: 40px;
  height: 40px;
  cursor: pointer;
  padding: 0;
  align-items: center;
  justify-content: center;
  color: var(--text-bright);
}
.nav-hamburger:hover { background: var(--bg2); }
.nav-hamburger svg { width: 20px; height: 20px; }

/* ─── LAYOUT ─── */
.docs-layout {
  max-width: 1180px;
  margin: 0 auto;
  padding: 6rem 2rem 3rem;
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 3rem;
  align-items: start;
}

/* ─── SIDEBAR ─── */
.docs-sidebar {
  position: sticky;
  top: 80px;
  align-self: start;
}
.docs-sidebar-inner {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.2rem 0.5rem 1rem;
}
.docs-sidebar-inner strong {
  display: block;
  font-size: 0.72rem;
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin: 0 0 0.8rem 1rem;
}
.docs-sidebar ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.docs-sidebar li a {
  display: block;
  font-size: 0.85rem;
  color: var(--text-dim);
  text-decoration: none;
  padding: 0.45rem 1rem;
  border-left: 2px solid transparent;
  transition: all 0.15s;
}
.docs-sidebar li a:hover {
  color: var(--text-bright);
  background: var(--bg3);
}
.docs-sidebar li a.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: var(--bg3);
}
.docs-sidebar li a .pro {
  display: inline-block;
  margin-left: 0.4rem;
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  background: rgba(74, 158, 237, 0.15);
  color: var(--accent);
  text-transform: uppercase;
}
.sidebar-footer {
  margin-top: 1rem;
  padding: 0.8rem 1rem 0;
  border-top: 1px solid var(--border);
}
.sidebar-footer a {
  font-size: 0.78rem;
  color: var(--text-dim);
  text-decoration: none;
}
.sidebar-footer a:hover { color: var(--accent); }

/* ─── CONTENT ─── */
.docs-content {
  min-width: 0;
  max-width: 760px;
}

.section-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.6rem;
  font-family: 'JetBrains Mono', monospace;
}

.docs-content h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-bright);
  letter-spacing: -0.03em;
  margin-bottom: 1.6rem;
  line-height: 1.2;
}

.docs-content h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.02em;
  margin-top: 2.4rem;
  margin-bottom: 0.8rem;
  line-height: 1.3;
}
.docs-content h2:first-of-type { margin-top: 1rem; }

.docs-content h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-bright);
  margin-top: 1.6rem;
  margin-bottom: 0.4rem;
}

.docs-content p {
  font-size: 0.92rem;
  color: var(--text);
  line-height: 1.75;
  margin-bottom: 1rem;
  max-width: 680px;
}

.docs-content ul,
.docs-content ol {
  margin: 0 0 1rem 1.3rem;
  color: var(--text);
}
.docs-content li {
  font-size: 0.92rem;
  line-height: 1.75;
  margin-bottom: 0.3rem;
  max-width: 680px;
}

.docs-content strong { color: var(--text-bright); font-weight: 600; }
.docs-content em { color: var(--text); font-style: italic; }
.docs-content a { color: var(--accent); text-decoration: none; }
.docs-content a:hover { text-decoration: underline; }

.docs-content code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85em;
  background: var(--bg2);
  border: 1px solid var(--border);
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  color: var(--text-bright);
}

.docs-content blockquote {
  border-left: 3px solid var(--accent);
  padding: 0.4rem 0 0.4rem 1.2rem;
  margin: 1.2rem 0;
  color: var(--text-dim);
  font-style: italic;
}

.docs-content .callout {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  padding: 1rem 1.2rem;
  margin: 1.4rem 0;
}
.docs-content .callout strong { color: var(--accent); }
.docs-content .callout p:last-child { margin-bottom: 0; }

.docs-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.2rem 0;
  font-size: 0.88rem;
}
.docs-content table th,
.docs-content table td {
  text-align: left;
  padding: 0.6rem 0.8rem;
  border-bottom: 1px solid var(--border);
}
.docs-content table th {
  color: var(--text-dim);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--bg2);
}
.docs-content table .yes { color: var(--float); }
.docs-content table .no { color: var(--text-dim); opacity: 0.4; }

.doc-next {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.doc-next a {
  font-size: 0.9rem;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}
.doc-next a:hover { color: var(--text-bright); }

/* ─── FOOTER ─── */
footer {
  padding: 2rem;
  border-top: 1px solid var(--border);
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-left { font-size: 0.78rem; color: var(--text-dim); }
.footer-left a { color: var(--text-dim); text-decoration: none; }
.footer-right { display: flex; gap: 1.2rem; }
.footer-right a { font-size: 0.78rem; color: var(--text-dim); text-decoration: none; }
.footer-right a:hover { color: var(--text); }
.footer-links {
  width: 100%;
  display: flex;
  gap: 1.3rem;
  margin-top: 0.5rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.footer-links a { font-size: 0.75rem; color: var(--text-dim); text-decoration: none; }
.footer-links a:hover { color: var(--text); }
.legal {
  width: 100%;
  font-size: 0.68rem;
  color: var(--text-dim);
  opacity: 0.4;
  margin-top: 0.5rem;
  line-height: 1.5;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .docs-layout {
    grid-template-columns: 1fr;
    padding-top: 5rem;
  }
  .docs-sidebar {
    position: static;
  }
  .docs-sidebar ul {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .docs-sidebar li a {
    padding: 0.35rem 0.8rem;
    border-left: none;
    border-bottom: 2px solid transparent;
  }
  .docs-sidebar li a.active {
    border-left: none;
    border-bottom-color: var(--accent);
  }
}
@media (max-width: 640px) {
  nav { padding: 0 1rem; }
  .docs-content h1 { font-size: 1.6rem; }
  .docs-layout { padding: 4.5rem 1.25rem 2.5rem; }
  .nav-hamburger { display: inline-flex; }
  .nav-links {
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(20, 22, 24, 0.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0.5rem 0;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }
  nav.open .nav-links {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-links a {
    padding: 0.9rem 1.25rem;
    font-size: 0.95rem;
    border-bottom: 1px solid var(--border);
  }
  .nav-links a:last-child { border-bottom: none; }
}