/* ============================================================
   NAV
   ============================================================ */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-faint);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad-x);
  height: 68px;
  display: flex;
  align-items: center;
  gap: var(--sp-8);
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-shrink: 0;
}
.nav-logo img { width: 48px; height: 48px; object-fit: contain; }
.nav-logo-text {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--ink);
  letter-spacing: 0.04em;
  line-height: 1;
  text-transform: lowercase;
}
.nav-logo:hover .nav-logo-text { color: var(--accent); }
.nav-logo:hover svg path,
.nav-logo:hover svg line { opacity: 0.8; }

/* Nav links */
.nav-links {
  display: flex;
  gap: var(--sp-6);
  align-items: center;
  margin-left: auto;
}
.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--ink-muted);
  position: relative;
  transition: color var(--t-fast);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-fast);
  border-radius: var(--r-full);
}
.nav-links a:hover { color: var(--accent); }
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); }
.nav-links a.active { color: var(--accent); font-weight: 700; }

/* CTA in nav */
.nav-cta {
  margin-left: var(--sp-4);
  padding: 0.5em 1.2em;
  background: var(--accent);
  color: #fff !important;
  border-radius: var(--r-full);
  font-weight: 700 !important;
  font-size: var(--text-xs) !important;
  letter-spacing: 0.03em;
  transition: background var(--t-fast), transform var(--t-fast) !important;
}
.nav-cta:hover {
  background: var(--accent-warm) !important;
  transform: translateY(-1px) !important;
  color: #fff !important;
}
.nav-cta::after { display: none !important; }

/* Mobile hamburger */
.nav-burger {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  margin-left: auto;
  border-radius: var(--r-md);
  transition: background var(--t-fast);
}
.nav-burger:hover { background: var(--bg-offset); }
.nav-burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: var(--r-full);
  transition: transform var(--t-base), opacity var(--t-base);
}
.nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav drawer */
.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--border-faint);
  background: var(--bg-surface);
  padding: var(--sp-4) var(--pad-x);
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  padding: var(--sp-3) 0;
  font-size: var(--text-md);
  font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid var(--border-faint);
  transition: color var(--t-fast), padding-left var(--t-fast);
}
.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile a:hover { color: var(--accent); padding-left: var(--sp-3); }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-burger { display: flex; }
}