/* ─────────────────────────────────────────────────────────────────
   CNLab — Production Stylesheet (extracted from wireframe v1.0)
   Dark B2B tech aesthetic, with light-mode override.
   ───────────────────────────────────────────────────────────────── */

/* Tokens — Dark default */
:root {
  --bg-primary: #05050A;
  --bg-secondary: #0D1B2A;
  --bg-tertiary: #111827;
  --bg-card: #0B1424;
  --bg-elevated: #16243C;
  --accent: #3B82F6;
  --accent-hover: #2563EB;
  --accent-soft: rgba(59, 130, 246, 0.12);
  --success: #27C93F;
  --warning: #FAB387;
  --danger: #FF5F56;
  --text-primary: #F0F4F8;
  --text-secondary: #CBD5E1;
  --text-muted: #94A3B8;
  --text-faint: #64748B;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --gradient-accent: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);
}

body.light-mode {
  --bg-primary: #FFFFFF;
  --bg-secondary: #F1F5F9;
  --bg-tertiary: #E2E8F0;
  --bg-card: #FFFFFF;
  --bg-elevated: #F8FAFC;
  --accent: #2563EB;
  --accent-hover: #1D4ED8;
  --accent-soft: rgba(37, 99, 235, 0.08);
  --text-primary: #0F172A;
  --text-secondary: #1E293B;
  --text-muted: #475569;
  --text-faint: #64748B;
  --border: rgba(15, 23, 42, 0.08);
  --border-strong: rgba(15, 23, 42, 0.16);
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  transition: background 200ms ease, color 200ms ease;
}

/* Typography */
.tag-line {
  font-size: 11px;
  letter-spacing: 0.16em;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 14px;
  display: inline-block;
}
.h1 {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-size: clamp(32px, 4.6vw, 56px);
  line-height: 1.05;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.h2 {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.18;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
.h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.sub {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 24px;
  max-width: 56ch;
  line-height: 1.75;
}
.sub2 {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}
.metric {
  font-family: 'JetBrains Mono', 'Menlo', monospace;
  font-weight: 700;
  color: var(--accent);
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* Layout */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; width: 100%; }
.container-narrow { max-width: 880px; margin: 0 auto; padding: 0 24px; }
.section {
  padding: 96px 0;
  border-bottom: 1px solid var(--border);
}
.section.dark { background: var(--bg-primary); }
.section.mid { background: var(--bg-secondary); }
.section.tertiary { background: var(--bg-tertiary); }
.section.accent-bg {
  background: linear-gradient(135deg, #1E3A8A 0%, #1E40AF 50%, #2563EB 100%);
  color: #fff;
  border: none;
}
.section-label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--text-faint);
  text-transform: uppercase;
  margin-bottom: 12px;
  display: block;
}
.section-title { text-align: center; margin-bottom: 48px; }
.section-title .sub { margin-left: auto; margin-right: auto; }
.center { text-align: center; }

/* Grids */
.row { display: flex; gap: 32px; align-items: flex-start; }
.row.center-y { align-items: center; }
.col { flex: 1 1 0; }
.col-2 { flex: 2 1 0; }
.card-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.card-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: border-color 150ms ease, transform 200ms ease;
}
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card.flat:hover { transform: none; }
.card .h3 { margin-bottom: 8px; }
.prod-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--text-faint);
  margin-bottom: 16px;
  font-weight: 700;
}
.tech-icon-box {
  font-size: 28px;
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.case-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 5px 10px;
  border-radius: 4px;
  margin-bottom: 14px;
}
.case-quote {
  font-style: italic;
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.7;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
}
.stat-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 32px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* CTAs and pills */
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: transform 150ms ease, background 150ms ease;
  border: 1.5px solid transparent;
}
.cta-btn.primary { background: var(--accent); color: #fff; }
.cta-btn.primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.cta-btn.secondary {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-strong);
}
.cta-btn.secondary:hover { border-color: var(--accent); color: var(--accent); }
.pill {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  border: 1px solid var(--border-strong);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 150ms ease;
}
.pill.accent { background: var(--accent); color: #fff; border-color: var(--accent); }
.pill.outline:hover { border-color: var(--accent); color: var(--accent); }
.link-btn {
  color: var(--accent);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 150ms ease;
}
.link-btn:hover { gap: 10px; }
.badge-blue {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent);
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
}
.badge-orange {
  background: rgba(250, 179, 135, 0.15);
  color: #FAB387;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
}

/* Navigation */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 5, 10, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 32px;
}
body.light-mode .nav { background: rgba(255, 255, 255, 0.85); }
.nav .logo {
  font-weight: 800;
  font-size: 20px;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.nav-links {
  display: flex;
  gap: 26px;
  flex: 1;
  margin-left: 18px;
}
.nav-links a {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color 150ms ease;
}
.nav-links a:hover, .nav-links a.active { color: var(--accent); }
.nav-right { display: flex; align-items: center; gap: 10px; }
.icon-btn {
  font-size: 16px;
  padding: 6px 8px;
  cursor: pointer;
  border-radius: 6px;
  border: 1px solid transparent;
}
.icon-btn:hover { border-color: var(--border-strong); }
.hamburger { display: none; }

/* Hero */
.hero {
  position: relative;
  padding: 96px 0 80px;
  overflow: hidden;
}
.hero-canvas {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  width: 100%; height: 100%;
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}
.hero-h1 span { display: block; }
.hero-h1 .accent { color: var(--accent); }
.hero-cta-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 8px; }

/* Hero carousel */
.hero-carousel { position: relative; }
.carousel-viewport {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  aspect-ratio: 4 / 3;
  background: var(--bg-secondary);
}
.carousel-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 700ms ease;
}
.carousel-slide.active { opacity: 1; }
.carousel-slide img { width: 100%; height: 100%; object-fit: cover; }
.carousel-nav {
  margin-top: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.slide-info .slide-label { font-size: 11px; letter-spacing: 0.12em; color: var(--accent); text-transform: uppercase; }
.slide-info .slide-title { font-size: 14px; color: var(--text-primary); font-weight: 700; }
.carousel-dots { display: flex; gap: 6px; }
.dot {
  width: 28px; height: 4px; border-radius: 4px;
  background: var(--border-strong);
  cursor: pointer;
  transition: background 200ms;
}
.dot.active { background: var(--accent); }

/* Marquee */
.marquee-bar {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
  overflow: hidden;
}
.marquee-inner {
  display: flex;
  gap: 48px;
  animation: marquee 38s linear infinite;
  width: max-content;
}
.marquee-item {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  white-space: nowrap;
  font-weight: 600;
  text-transform: uppercase;
}
.marquee-item.label { color: var(--accent); font-weight: 800; }
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Comparison matrix */
.matrix-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  font-size: 14px;
}
.matrix-table th, .matrix-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.matrix-table th {
  background: var(--bg-secondary);
  font-weight: 700;
  color: var(--text-primary);
  font-size: 13px;
  letter-spacing: 0.04em;
}
.matrix-table tr:last-child td { border-bottom: 0; }
.matrix-table tbody tr:hover td { background: var(--accent-soft); }

/* Form */
.form-group { margin-bottom: 18px; }
.form-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  margin-bottom: 6px;
  text-transform: uppercase;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
  transition: border-color 150ms ease;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-textarea { min-height: 110px; resize: vertical; }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-row { display: flex; gap: 14px; align-items: flex-end; }

/* Footer */
.footer {
  background: #02060F;
  border-top: 1px solid var(--border);
  padding: 56px 0 32px;
  color: var(--text-muted);
}
body.light-mode .footer { background: #0F172A; color: #CBD5E1; }
.footer .logo { color: #fff; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 36px;
}
.footer-col-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 14px;
}
.footer-link {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
  cursor: pointer;
  transition: color 150ms ease;
}
.footer-link:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-faint);
}
.input-row { display: flex; gap: 8px; }
.input-row .form-input { flex: 1; padding: 8px 10px; font-size: 12px; }
.btn-sm {
  padding: 8px 14px;
  background: var(--accent);
  color: #fff;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  border: none;
}
.btn-sm:hover { background: var(--accent-hover); }

/* Tabs */
.tabs { display: flex; gap: 6px; margin-bottom: 24px; border-bottom: 1px solid var(--border); }
.tab {
  padding: 12px 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* Doc layout */
.doc-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  padding: 48px 24px;
  max-width: 1200px;
  margin: 0 auto;
  min-height: 80vh;
}
.doc-sidebar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  height: fit-content;
  position: sticky;
  top: 90px;
}
.doc-nav-group {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  text-transform: uppercase;
  margin: 12px 0 6px;
}
.doc-nav-item {
  display: block;
  padding: 7px 12px;
  font-size: 13px;
  color: var(--text-secondary);
  border-radius: 6px;
  cursor: pointer;
  transition: all 150ms ease;
}
.doc-nav-item:hover { background: var(--accent-soft); color: var(--accent); }
.doc-nav-item.active { background: var(--accent); color: #fff; }
.doc-content { min-width: 0; }
.doc-content h1 { font-size: 32px; margin-bottom: 14px; color: var(--text-primary); }
.doc-content h2 { font-size: 22px; margin: 36px 0 12px; color: var(--text-primary); }
.doc-content h3 { font-size: 17px; margin: 24px 0 8px; color: var(--text-primary); }
.doc-content p { margin-bottom: 14px; }
.doc-content code, .doc-content pre {
  font-family: 'JetBrains Mono', 'Menlo', monospace;
  background: var(--bg-secondary);
  border-radius: 6px;
  font-size: 13px;
}
.doc-content code { padding: 2px 6px; color: var(--accent); }
.doc-content pre {
  padding: 16px;
  border: 1px solid var(--border);
  overflow-x: auto;
  margin: 14px 0;
}
.doc-content pre code { background: transparent; padding: 0; color: var(--text-secondary); }
.doc-content ul, .doc-content ol { padding-left: 22px; margin-bottom: 14px; }
.doc-content li { margin-bottom: 6px; }
.callout {
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  padding: 14px 16px;
  border-radius: 6px;
  margin: 18px 0;
  font-size: 14px;
}

/* Admin panel */
.admin-shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
  background: var(--bg-primary);
}
.admin-sidebar {
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  padding: 14px 0;
  overflow-y: auto;
}
.admin-brand {
  padding: 12px 18px;
  font-weight: 800;
  color: var(--accent);
  font-size: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.admin-menu-group {
  padding: 14px 18px 6px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  text-transform: uppercase;
}
.admin-menu-item {
  padding: 9px 18px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  border-left: 2px solid transparent;
  transition: all 150ms ease;
}
.admin-menu-item:hover { background: var(--accent-soft); color: var(--accent); }
.admin-menu-item.active { background: var(--accent-soft); color: var(--accent); border-left-color: var(--accent); }
.admin-content { padding: 24px 36px; overflow-y: auto; }
.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}
.table-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 8px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.table-row.head {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  text-transform: uppercase;
}
.act-btn {
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 700;
  border-radius: 4px;
  cursor: pointer;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text-secondary);
}
.act-btn.edit:hover { border-color: var(--accent); color: var(--accent); }
.act-btn.del:hover { border-color: var(--danger); color: var(--danger); }
.col-name { flex: 2; font-weight: 600; color: var(--text-primary); }
.col-actions { display: flex; gap: 6px; flex: 1; }
.toggle {
  width: 36px; height: 20px;
  background: var(--accent);
  border-radius: 12px;
  position: relative;
  cursor: pointer;
}
.toggle::after {
  content: '';
  position: absolute;
  top: 2px; right: 2px;
  width: 16px; height: 16px;
  background: #fff;
  border-radius: 50%;
}
.toggle.off { background: var(--border-strong); }
.toggle.off::after { right: auto; left: 2px; }

/* Animated chart placeholder */
.chart {
  width: 100%;
  height: 240px;
  border-radius: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
}

/* Responsive */
@media (max-width: 980px) {
  .nav-links { display: none; }
  .hamburger { display: block; cursor: pointer; font-size: 22px; }
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .row { flex-direction: column; }
  .card-grid-3, .card-grid-4 { grid-template-columns: 1fr; }
  .card-grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .doc-shell { grid-template-columns: 1fr; }
  .doc-sidebar { position: static; }
  .admin-shell { grid-template-columns: 1fr; }
  .admin-sidebar { display: none; }
  .form-grid-2 { grid-template-columns: 1fr; }
  .matrix-table { font-size: 12px; }
  .matrix-table th, .matrix-table td { padding: 10px 8px; }
}

/* Utility */
.mt-12 { margin-top: 12px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mb-12 { margin-bottom: 12px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.text-center { text-align: center; }
.text-accent { color: var(--accent); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }