:root {
  --ink: #0f172a;
  --muted: #475569;
  --line: #e2e8f0;
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --accent: #1e40af;
  --accent-dark: #1e3a8a;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
a { color: var(--accent); }
a:hover { color: var(--accent-dark); }

/* ── Top bar ── */
.topbar {
  padding: 14px 24px;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  font-size: 14px;
  color: var(--muted);
}
.topbar-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; flex-wrap: wrap;
  align-items: center; justify-content: space-between; gap: 8px;
}
.topbar-brand {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; color: var(--ink); letter-spacing: 0.02em;
  text-decoration: none;
}
.topbar-brand img { height: 28px; width: auto; display: block; }
.topbar-links {
  display: inline-flex; align-items: center; gap: 14px; flex-wrap: wrap;
}
.topbar-links a { color: var(--muted); text-decoration: none; font-weight: 600; }
.topbar-links a:hover { color: var(--ink); }

/* ── Trust strip ── */
.trust-strip {
  background: var(--accent); color: #ffffff;
  padding: 10px 24px; font-size: 13.5px; font-weight: 600;
}
.trust-strip-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 8px 22px; justify-content: center;
}
.trust-strip a { color: #ffffff; text-decoration: none; }
.trust-strip a:hover { text-decoration: underline; }
.trust-strip-sep { opacity: 0.45; }

/* ── Hero ── */
.hero {
  padding: 28px 24px 32px;
  background: linear-gradient(180deg, #ffffff 0%, var(--bg-soft) 100%);
  border-bottom: 1px solid var(--line);
}
.hero-inner { max-width: 1100px; margin: 0 auto; }
.hero-eyebrow {
  display: inline-block; font-size: 12px; font-weight: 700;
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--accent);
  padding: 6px 12px; background: rgba(30, 64, 175, 0.08);
  border-radius: 999px; margin-bottom: 20px;
}
.hero h1 {
  margin: 0; font-size: 44px; line-height: 1.15;
  font-weight: 800; letter-spacing: -0.015em; max-width: 820px;
}
.hero-lead {
  margin: 18px 0 0; font-size: 19px; color: var(--muted); max-width: 720px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 22px; border-radius: 12px; font-weight: 700;
  text-decoration: none; font-size: 15px; border: 2px solid transparent;
  transition: transform 0.08s ease, box-shadow 0.15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--accent); color: #ffffff;
  box-shadow: 0 4px 14px rgba(30, 64, 175, 0.25);
}
.btn-primary:hover { background: var(--accent-dark); color: #fff; }
.btn-ghost {
  background: transparent; color: var(--ink); border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); }

/* ── Sections / main ── */
main { max-width: 1100px; margin: 0 auto; padding: 32px 24px 48px; }
section { margin-bottom: 40px; }
section:last-child { margin-bottom: 0; }
h2 { margin: 0 0 12px; font-size: 26px; font-weight: 800; letter-spacing: -0.01em; }
h3 { font-size: 18px; margin: 0 0 8px; font-weight: 700; }

.two-col {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px; margin-top: 18px;
}
.card {
  border: 1px solid var(--line); border-radius: 14px;
  padding: 22px; background: var(--bg);
  text-decoration: none; color: inherit; display: block;
  transition: border-color 0.12s, box-shadow 0.12s, transform 0.08s;
}
.card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 18px rgba(30, 64, 175, 0.08);
  transform: translateY(-2px);
}
.card h3 { margin: 0 0 8px; font-size: 16px; font-weight: 700; color: var(--ink); }
.card p { margin: 0; color: var(--muted); font-size: 14.5px; }
.card-link { margin-top: 12px; font-weight: 700; color: var(--accent); font-size: 14px; }

/* ── Hero stats ── */
.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 14px; margin-top: 32px; padding: 20px;
  background: #ffffff; border: 1px solid var(--line);
  border-radius: 14px; max-width: 720px;
}
.hero-stat { text-align: center; }
.hero-stat-value {
  font-size: 22px; font-weight: 800; color: var(--accent);
  letter-spacing: -0.01em; line-height: 1.1;
}
.hero-stat-label {
  margin-top: 4px; font-size: 12px; color: var(--muted); letter-spacing: 0.02em;
}

/* ── Residential redirect box ── */
.resi {
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 14px; padding: 24px;
  display: flex; flex-wrap: wrap; gap: 12px 20px;
  align-items: center; justify-content: space-between;
}
.resi-text { flex: 1; min-width: 220px; }
.resi-text strong { display: block; font-size: 16px; margin-bottom: 4px; }
.resi-text p { margin: 0; color: var(--muted); font-size: 14.5px; }

/* ── FAQ ── */
.faq details {
  border: 1px solid var(--line); border-radius: 12px;
  padding: 14px 18px; margin-bottom: 10px; background: var(--bg);
}
.faq summary {
  font-weight: 700; cursor: pointer; list-style: none;
  display: flex; justify-content: space-between; gap: 12px;
}
.faq summary::after { content: "+"; color: var(--accent); font-weight: 800; }
.faq details[open] summary::after { content: "−"; }
.faq details[open] { border-color: var(--accent); }
.faq-answer { margin-top: 10px; color: var(--muted); font-size: 15px; }

/* ── Service nav (in-content links between service pages) ── */
.svc-nav {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin: 20px 0; padding: 16px; background: var(--bg-soft);
  border: 1px solid var(--line); border-radius: 12px; font-size: 13.5px;
}
.svc-nav-label { color: var(--muted); font-weight: 700; margin-right: 4px; }
.svc-nav a {
  color: var(--accent); text-decoration: none; padding: 2px 8px;
  border-radius: 999px; background: rgba(30, 64, 175, 0.06);
}
.svc-nav a:hover { background: rgba(30, 64, 175, 0.12); }
.svc-nav a.current { background: var(--accent); color: #fff; }

/* ── Footer ── */
footer {
  border-top: 1px solid var(--line);
  padding: 40px 24px 56px; background: var(--bg-soft);
  color: var(--muted); font-size: 14px;
}
.footer-inner { max-width: 1100px; margin: 0 auto; }
.footer-top {
  display: flex; flex-wrap: wrap; gap: 24px;
  justify-content: space-between; margin-bottom: 28px;
}
.footer-brand strong { color: var(--ink); font-size: 16px; }
footer h3 {
  font-size: 13px; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--ink); margin: 0 0 10px;
}
footer ul { list-style: none; padding: 0; margin: 0; }
footer ul li { margin: 4px 0; font-size: 13.5px; }
footer ul a { color: var(--muted); text-decoration: none; }
footer ul a:hover { color: var(--ink); text-decoration: underline; }

/* ── NPC ecosystem strip ── */
.ecosystem {
  border-top: 1px solid var(--line); padding-top: 20px;
  display: flex; flex-wrap: wrap; gap: 4px 12px; font-size: 13px;
}
.ecosystem-label { color: var(--muted); margin-right: 4px; }
.ecosystem a {
  color: var(--muted); text-decoration: none;
  padding: 2px 8px; border-radius: 999px; background: rgba(0, 0, 0, 0.04);
}
.ecosystem a:hover { color: var(--ink); background: rgba(0, 0, 0, 0.08); }

/* ── Mobile ── */
@media (max-width: 640px) {
  .hero { padding: 24px 20px 36px; }
  .hero h1 { font-size: 30px; }
  .hero-lead { font-size: 16px; }
  main { padding: 40px 20px; }
  h2 { font-size: 22px; }
  .trust-strip { font-size: 12px; padding: 8px 16px; }
  .trust-strip-inner { gap: 4px 14px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}