#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  height: 64px;
  display: flex;
  align-items: center;
  padding: 0 36px;
  gap: 6px;
  background: rgba(248,250,249,.94);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid transparent;
  transition: var(--t);
}
#nav.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 2px 20px rgba(11,15,26,.07);
}
.nav-logo {
  font-family: 'Playfair Display', sans-serif;
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -.04em;
  color: var(--ink);
  cursor: pointer;
  margin-right: auto;
  flex-shrink: 0;
  transition: var(--t);
}
.nav-logo:hover { color: var(--teal); }
.nav-logo .dot { color: var(--teal); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-link {
  padding: 7px 14px;
  border-radius: var(--r-pill);
  font-size: 14px;
  font-weight: 500;
  color: var(--body);
  cursor: pointer;
  transition: var(--t);
  border: none;
  background: none;
  white-space: nowrap;
}
.nav-link:hover  { background: var(--bg-2); color: var(--ink); }
.nav-link.on     { color: var(--teal); background: var(--teal-lt); font-weight: 600; }
.nav-cta {
  margin-left: 12px;
  height: 40px;
  padding: 0 22px;
  background: var(--teal);
  color: #fff;
  border-radius: var(--r-pill);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  box-shadow: 0 2px 12px rgba(13,158,117,.3);
  transition: var(--t);
  white-space: nowrap;
  flex-shrink: 0;
}
.nav-cta:hover { background: var(--teal-dk); transform: translateY(-1px); box-shadow: 0 6px 24px rgba(13,158,117,.35); }

/* Hamburger */
.ham {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: var(--t);
  margin-left: 8px;
}
.ham:hover { background: var(--bg-2); }
.ham span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: var(--t);
}
.ham.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.ham.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.ham.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
#mob-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 800;
  background: rgba(11,15,26,.55);
  backdrop-filter: blur(4px);
}
#mob-menu.on { display: block; }
.mob-panel {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: min(300px, 85vw);
  background: var(--white);
  padding: 88px 20px 40px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-shadow: -12px 0 60px rgba(11,15,26,.2);
  animation: slideIn .28s cubic-bezier(.4,0,.2,1);
}
@keyframes slideIn { from { transform: translateX(100%); } to { transform: translateX(0); } }
.mob-link {
  display: block;
  padding: 13px 18px;
  border-radius: var(--r-lg);
  font-size: 16px;
  font-weight: 600;
  color: var(--body);
  cursor: pointer;
  transition: var(--t);
  text-align: left;
}
.mob-link:hover, .mob-link.on { background: var(--teal-lt); color: var(--teal); }
.mob-link.on { font-weight: 700; }

/* Back button (floating) */
#nav-back-btn {
  position: fixed;
  top: 70px;
  left: 16px;
  z-index: 200;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--white);
  border: 1.5px solid var(--border);
  color: var(--ink);
  font-size: 16px;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,.1);
  transition: var(--t);
}
#nav-back-btn:hover { background: var(--bg); transform: translateX(-2px); }
#nav-back-btn.visible { display: flex; }

@media (max-width: 960px) {
  .ham { display: flex; }
  .nav-links, .nav-cta { display: none; }
}
@media (max-width: 640px) {
  #nav-back-btn { top: 64px; }
}