/* ── PurityGuardian Unified Navbar ── */
:root {
  --nav-bg: #ffffff;
  --nav-border: rgba(26,39,68,0.08);
  --nav-navy: #1a2744;
  --nav-navy-deep: #0f1c2e;
  --nav-blue: #5dade2;
  --nav-cyan: #5dade2;
  --nav-muted: #4B5B72;
  --nav-text: #0F172A;
  --nav-green: #27ae60;
}

.pg-nav {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-border);
  box-shadow: 0 1px 8px rgba(10,22,40,0.06);
}

/* Scrolled state — subtle tint */
.pg-nav.scrolled {
  box-shadow: 0 2px 16px rgba(10,22,40,0.10);
}

.pg-nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  gap: 20px;
}

/* ── Logo / brand ── */
.pg-nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.pg-nav-brand img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  display: block;
}

.pg-nav-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.pg-nav-brand-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--nav-navy);
  white-space: nowrap;
}

.pg-nav-brand-name span { color: var(--nav-blue); }

.pg-nav-brand-tagline {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.62rem;
  font-weight: 500;
  color: var(--nav-muted);
  letter-spacing: 0.15px;
  white-space: nowrap;
}

/* ── Nav links — no wrapping, equal spacing ── */
.pg-nav-links {
  margin-left: 16px;
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 0;
  flex-shrink: 1;
  min-width: 0;
}

.pg-nav-links a {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--nav-muted);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: 6px;
  white-space: nowrap;
  transition: color 0.18s, background 0.18s;
  flex-shrink: 0;
}

.pg-nav-links a:hover {
  color: var(--nav-navy);
  background: rgba(26,58,110,0.05);
}

.pg-nav-links a.active {
  color: var(--nav-green);
  font-weight: 600;
}

/* ── CTA ── */
.pg-nav-cta {
  margin-left: auto;
  flex-shrink: 0;
}

.pg-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  background: var(--nav-navy);
  color: #fff;
  border-radius: 8px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.18s, transform 0.12s;
}

.pg-nav-btn:hover {
  background: #2d4a7a;
  transform: translateY(-1px);
}

/* ── Hamburger ── */
.pg-nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-left: auto;
  border-radius: 6px;
  transition: background 0.18s;
}

.pg-nav-hamburger:hover { background: rgba(26,58,110,0.06); }

.pg-nav-hamburger span {
  display: block;
  width: 22px;
  height: 2.5px;
  background: var(--nav-navy);
  border-radius: 2px;
  transition: transform 0.28s, opacity 0.28s;
}

.pg-nav-hamburger.open span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}
.pg-nav-hamburger.open span:nth-child(2) {
  opacity: 0;
}
.pg-nav-hamburger.open span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* ── Mobile drawer ── */
.pg-nav-drawer {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--nav-border);
  padding: 16px 24px 20px;
  flex-direction: column;
  gap: 2px;
  z-index: 199;
  box-shadow: 0 8px 24px rgba(10,22,40,0.10);
}

.pg-nav-drawer.open { display: flex; }

.pg-nav-drawer a {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.975rem;
  font-weight: 500;
  color: var(--nav-muted);
  text-decoration: none;
  padding: 11px 8px;
  border-bottom: 1px solid rgba(10,22,40,0.05);
  transition: color 0.18s, background 0.18s;
  border-radius: 6px;
}

.pg-nav-drawer a:last-child { border-bottom: none; }

.pg-nav-drawer a:hover {
  color: var(--nav-navy);
  background: rgba(26,58,110,0.05);
}

.pg-nav-drawer a.active { color: var(--nav-green); font-weight: 600; }

.pg-nav-drawer-cta {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--nav-border);
}

.pg-nav-drawer-cta a {
  display: block;
  background: var(--nav-navy);
  color: #fff !important;
  text-align: center;
  padding: 12px 20px;
  border-radius: 8px;
  font-weight: 600;
  border-bottom: none;
}

.pg-nav-drawer-cta a:hover { background: #2d4a7a; }

/* ── Dark page variant — navy bg, white brand, bright links ── */
.pg-nav.pg-nav-dark {
  background: var(--nav-navy-deep);
  border-bottom-color: rgba(255,255,255,0.06);
  box-shadow: none;
}

.pg-nav.pg-nav-dark.scrolled {
  box-shadow: 0 2px 16px rgba(0,0,0,0.40);
}

.pg-nav.pg-nav-dark .pg-nav-brand-name { color: #fff; }
.pg-nav.pg-nav-dark .pg-nav-brand-name span { color: var(--nav-cyan); }
.pg-nav.pg-nav-dark .pg-nav-brand-tagline { color: rgba(255,255,255,0.45); }

.pg-nav.pg-nav-dark .pg-nav-links a { color: rgba(255,255,255,0.65); }
.pg-nav.pg-nav-dark .pg-nav-links a:hover {
  color: #fff;
  background: rgba(255,255,255,0.08);
}

.pg-nav.pg-nav-dark .pg-nav-btn {
  background: var(--nav-green);
}
.pg-nav.pg-nav-dark .pg-nav-btn:hover { background: #219a52; }

.pg-nav.pg-nav-dark .pg-nav-hamburger span { background: rgba(255,255,255,0.8); }
.pg-nav.pg-nav-dark .pg-nav-hamburger:hover { background: rgba(255,255,255,0.08); }

.pg-nav.pg-nav-dark .pg-nav-drawer {
  background: var(--nav-navy-deep);
  border-bottom-color: rgba(255,255,255,0.06);
}

.pg-nav.pg-nav-dark .pg-nav-drawer a { color: rgba(255,255,255,0.65); }
.pg-nav.pg-nav-dark .pg-nav-drawer a:hover { color: #fff; background: rgba(255,255,255,0.06); }
.pg-nav.pg-nav-dark .pg-nav-drawer-cta { border-top-color: rgba(255,255,255,0.08); }

/* ── Simple variant — brand + single CTA (buy-report, report pages) ── */
.pg-nav.pg-nav-simple {
  background: var(--nav-navy);
}

.pg-nav.pg-nav-simple .pg-nav-brand-name { color: #fff; }
.pg-nav.pg-nav-simple .pg-nav-brand-name span { color: var(--nav-cyan); }
.pg-nav.pg-nav-simple .pg-nav-brand-tagline { color: rgba(255,255,255,0.45); }

.pg-nav.pg-nav-simple .pg-nav-back {
  margin-left: auto;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
  white-space: nowrap;
}
.pg-nav.pg-nav-simple .pg-nav-back:hover {
  color: #fff;
  background: rgba(255,255,255,0.08);
}

/* ── Mobile breakpoint ── */
@media (max-width: 900px) {
  .pg-nav-links { display: none; }
  .pg-nav-cta { display: none; }
  .pg-nav-hamburger { display: flex; }
}