/* ==========================================================================
   Neighborhood Takeover — Shared Brand System
   PlusAutomation visual language + BCA corporate trust signals
   ========================================================================== */

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

:root {
  /* PlusAutomation dark palette */
  --bg-primary: #0a0f1a;
  --bg-secondary: #0f1629;
  --bg-card: #141b2d;
  --bg-card-hover: #1a2340;
  --bg-elevated: #1e2540;

  /* Text */
  --text-primary: #f0f2f5;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-dim: #475569;

  /* Gradients & accents */
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-gradient: linear-gradient(135deg, #3b82f6, #8b5cf6);
  --accent-gradient-r: linear-gradient(135deg, #8b5cf6, #3b82f6);
  --accent-gradient-soft: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(139, 92, 246, 0.15));

  /* Borders */
  --border-color: rgba(148, 163, 184, 0.1);
  --border-strong: rgba(148, 163, 184, 0.2);
  --border-glow: rgba(59, 130, 246, 0.3);
  --border-glow-strong: rgba(59, 130, 246, 0.5);

  /* BCA trust signals */
  --bca-blue: #1a56db;
  --success: #22c55e;
  --success-dark: #16a34a;
  --success-soft: rgba(34, 197, 94, 0.12);
  --warn: #eab308;
  --danger: #ef4444;
  --danger-soft: rgba(239, 68, 68, 0.1);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 32px rgba(59, 130, 246, 0.25);
  --shadow-glow-strong: 0 10px 40px rgba(59, 130, 246, 0.4);

  /* Layout */
  --nav-height: 72px;
  --container-max: 1200px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* ─── GEAR BACKGROUND PATTERN ─── */
.gear-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.04;
}
.gear-bg svg { width: 100%; height: 100%; }

@keyframes spin-slow { to { transform: rotate(360deg); } }
@keyframes pulse-dot { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ─── NAV ─── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(10, 15, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
}
.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  text-decoration: none;
  color: var(--text-primary);
}
.nav-logo .gear-icon {
  width: 28px;
  height: 28px;
  animation: spin-slow 20s linear infinite;
  flex-shrink: 0;
}
.nav-logo .brand-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-logo .product-tag {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-left: 8px;
  margin-right: 28px;
  padding-left: 10px;
  border-left: 1px solid var(--border-color);
  white-space: nowrap;
}
@media (max-width: 1250px) {
  .nav-logo .product-tag { display: none; }
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
}
.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a.active {
  color: var(--text-primary);
  position: relative;
}
.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-gradient);
  border-radius: 2px;
}
.nav-cta {
  background: var(--accent-gradient);
  color: #fff !important;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 13px;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.25);
  white-space: nowrap;
}
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.4);
}

/* ─── CONTAINER + SECTIONS ─── */
section { position: relative; z-index: 1; }
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 100px 0;
}
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 60px;
}
.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  line-height: 1.12;
  margin-bottom: 20px;
  letter-spacing: -0.015em;
}
.section-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 720px;
  line-height: 1.7;
  margin: 0 auto;
}
.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── BUTTONS ─── */
.btn {
  padding: 16px 32px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: none;
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px rgba(59, 130, 246, 0.5);
}
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
}
.btn-ghost:hover {
  border-color: var(--accent-blue);
  background: rgba(59, 130, 246, 0.08);
}
.btn-small {
  padding: 10px 18px;
  font-size: 13px;
}

/* ─── CARDS ─── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all 0.3s var(--ease-out);
}
.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
  transform: translateY(-4px);
}

/* ─── BADGES ─── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 100px;
  border: 1px solid var(--border-color);
  background: rgba(59, 130, 246, 0.08);
  font-size: 13px;
  font-weight: 500;
  color: var(--accent-blue);
}
.badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse-dot 2s ease infinite;
}
.badge-success {
  background: var(--success-soft);
  border-color: rgba(34, 197, 94, 0.3);
  color: var(--success);
}

/* ─── FOOTER ─── */
.site-footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  padding: 80px 0 40px;
  position: relative;
  overflow: hidden;
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 40% at 50% 0%, rgba(59, 130, 246, 0.08), transparent);
  pointer-events: none;
}
.site-footer > .container { position: relative; z-index: 1; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}
.footer-brand .nav-logo {
  margin-bottom: 20px;
}
.footer-brand p {
  color: var(--text-secondary);
  max-width: 360px;
  line-height: 1.7;
  font-size: 14px;
}
.footer-col h4 {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.footer-col ul {
  list-style: none;
}
.footer-col li {
  margin-bottom: 12px;
}
.footer-col a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}
.footer-col a:hover {
  color: var(--text-primary);
}
.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 16px;
}
.footer-bottom .legal {
  display: flex;
  gap: 24px;
}
.footer-bottom a {
  color: var(--text-muted);
  text-decoration: none;
}
.footer-bottom a:hover { color: var(--text-secondary); }

/* ─── RESPONSIVE ─── */
@media (max-width: 1100px) {
  .nav-links {
    display: none;
  }
}
@media (max-width: 900px) {
  .section { padding: 60px 0; }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}