/* ── Design Tokens ─────────────────────────────────── */
:root {
  --bg:             #000000;
  --surface:        #0a0a1a;
  --surface-2:      #111128;
  --border:         #1e1e3a;
  --panel:          #0d0d1a;
  --panel-item:     #1a1a2e;
  --panel-border:   #2a2a4a;
  --primary:        #6366f1;
  --primary-hover:  #4f46e5;
  --secondary:      #a855f7;
  --accent:         #ec4899;
  --text:           #e2e8f0;
  --text-secondary: #94a3b8;
  --text-dim:       #64748b;
  --radius:         12px;
  --radius-lg:      20px;
  --nav-width:      240px;
  --toc-width:      240px;
  --content-max:    900px;
}

/* ── Reset & Base ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--text); }

.gradient {
  background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Scrollbar ────────────────────────────────────── */
* { scrollbar-width: thin; scrollbar-color: var(--panel-border) transparent; }
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--panel-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* ── Top Bar ──────────────────────────────────────── */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--panel-border);
}

.topbar-brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-brand span { color: var(--primary); }

.topbar-badge {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--panel-item);
  border: 1px solid var(--panel-border);
  padding: 2px 10px;
  border-radius: 100px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.topbar-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.topbar-links a {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}

.topbar-links a:hover { color: var(--text); }

.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  color: var(--text-secondary);
  padding: 6px 10px;
  cursor: pointer;
  font-size: 18px;
}

/* ── Layout ───────────────────────────────────────── */
.docs-layout {
  display: flex;
  margin-top: 56px;
  min-height: calc(100vh - 56px);
}

/* ── Left Navigation ──────────────────────────────── */
.docs-nav {
  position: fixed;
  top: 56px;
  left: 0;
  bottom: 0;
  width: var(--nav-width);
  padding: 24px 16px;
  border-right: 1px solid var(--panel-border);
  overflow-y: auto;
  background: var(--bg);
  z-index: 50;
}

.nav-section {
  margin-bottom: 24px;
}

.nav-section-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0 12px;
  margin-bottom: 8px;
}

.nav-link {
  display: block;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 6px;
  transition: all .15s;
  margin-bottom: 1px;
}

.nav-link:hover {
  color: var(--text);
  background: var(--panel-item);
}

.nav-link.active {
  color: var(--primary);
  background: rgba(99, 102, 241, 0.08);
}

/* ── Content Area ─────────────────────────────────── */
.docs-content {
  flex: 1;
  margin-left: var(--nav-width);
  margin-right: var(--toc-width);
  padding: 40px 48px 80px;
  min-width: 0;
}

.docs-content-inner {
  max-width: var(--content-max);
  margin: 0 auto;
}

/* ── Right TOC ────────────────────────────────────── */
.docs-toc {
  position: fixed;
  top: 56px;
  right: 0;
  bottom: 0;
  width: var(--toc-width);
  padding: 24px 16px;
  border-left: 1px solid var(--panel-border);
  overflow-y: auto;
  background: var(--bg);
}

.toc-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 0 8px;
  margin-bottom: 12px;
}

.toc-link {
  display: block;
  padding: 4px 8px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-dim);
  border-left: 2px solid transparent;
  transition: all .15s;
  margin-bottom: 1px;
}

.toc-link:hover {
  color: var(--text-secondary);
}

.toc-link.active {
  color: var(--primary);
  border-left-color: var(--primary);
}

.toc-link.toc-h3 {
  padding-left: 16px;
  font-size: 11px;
}

/* ── Typography ───────────────────────────────────── */
.docs-content h1 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.2;
  margin-bottom: 8px;
}

.docs-content .subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.6;
}

.docs-content h2 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin-top: 48px;
  margin-bottom: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--panel-border);
  scroll-margin-top: 80px;
}

.docs-content h2:first-of-type {
  border-top: none;
  margin-top: 0;
  padding-top: 0;
}

.docs-content h3 {
  font-size: 17px;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 12px;
  scroll-margin-top: 80px;
}

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

.docs-content strong { color: var(--text); font-weight: 600; }

.docs-content ul, .docs-content ol {
  margin-bottom: 16px;
  padding-left: 20px;
}

.docs-content li {
  margin-bottom: 6px;
  color: var(--text-secondary);
}

.docs-content li strong { color: var(--text); }

/* ── Code ─────────────────────────────────────────── */
.docs-content code {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 13px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--accent);
}

.docs-content pre {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 16px 20px;
  overflow-x: auto;
  margin-bottom: 20px;
}

.docs-content pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.6;
}

/* ── Cards & Callouts ─────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color .2s;
}

.card:hover { border-color: rgba(99, 102, 241, 0.3); }

.card-icon {
  font-size: 20px;
  margin-bottom: 10px;
}

.card h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
}

.card p {
  font-size: 13px;
  margin-bottom: 0;
}

.callout {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 20px;
}

.callout.callout-warning { border-left-color: #eab308; }
.callout.callout-danger { border-left-color: #f43f5e; }

.callout p { margin-bottom: 0; font-size: 14px; }
.callout strong { color: var(--text); }

/* ── Steps ────────────────────────────────────────── */
.step {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.step-number {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.25);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-body h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}

.step-body p { font-size: 14px; margin-bottom: 0; }

/* ── Tables ───────────────────────────────────────── */
.docs-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
  font-size: 14px;
}

.docs-content th {
  text-align: left;
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  padding: 8px 12px;
  border-bottom: 1px solid var(--panel-border);
}

.docs-content td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--panel-border);
  color: var(--text-secondary);
}

.docs-content tr:last-child td { border-bottom: none; }

/* ── Badge ────────────────────────────────────────── */
.badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 8px;
  border-radius: 10px;
}

.badge-primary { background: rgba(99,102,241,0.12); color: var(--primary); }
.badge-purple { background: rgba(168,85,247,0.12); color: var(--secondary); }
.badge-green { background: rgba(52,211,153,0.12); color: #34d399; }
.badge-amber { background: rgba(234,179,8,0.12); color: #eab308; }
.badge-pink { background: rgba(236,72,153,0.12); color: var(--accent); }
.badge-gray { background: rgba(148,163,184,0.15); color: var(--text-secondary); }

/* ── Image / Screenshot placeholder ───────────────── */
.screenshot {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  color: var(--text-dim);
  font-size: 13px;
  margin-bottom: 20px;
}

/* ── App Mockups ──────────────────────────────────── */
.mockup {
  background: #000;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}

.mockup-modal {
  padding: 0;
}

/* ── Footer ───────────────────────────────────────── */
.docs-footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--panel-border);
  display: flex;
  justify-content: space-between;
}

.docs-footer a {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.docs-footer a:hover { color: var(--primary); }

/* ── Responsive ───────────────────────────────────── */
@media (max-width: 1100px) {
  .docs-toc { display: none; }
  .docs-content { margin-right: 0; }
}

@media (max-width: 768px) {
  .mobile-toggle { display: block; }

  .docs-nav {
    transform: translateX(-100%);
    transition: transform .2s ease;
    width: 260px;
    box-shadow: 4px 0 24px rgba(0,0,0,0.5);
  }

  .docs-nav.open {
    transform: translateX(0);
  }

  .docs-content {
    margin-left: 0;
    padding: 24px 20px 60px;
  }

  .card-grid { grid-template-columns: 1fr; }

  .docs-content h1 { font-size: 26px; }
  .docs-content h2 { font-size: 20px; }
}