.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  padding: 0 var(--space-8);
  background: transparent;
  transition: background 250ms, box-shadow 250ms;
}

.navbar.scrolled,
.navbar.solid {
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.navbar.scrolled .nav-link,
.navbar.solid .nav-link { color: var(--ink-muted); }

.navbar.scrolled .nav-link:hover,
.navbar.solid .nav-link:hover { color: var(--ink); background: var(--surface-alt); }

.navbar.scrolled .nav-link.active,
.navbar.solid .nav-link.active { color: var(--structure); }

.navbar.scrolled .logo-text,
.navbar.solid .logo-text { color: var(--ink); }

.navbar.scrolled .logo-text span,
.navbar.solid .logo-text span { color: var(--ink-muted); }

.navbar.scrolled .nav-hamburger svg,
.navbar.solid .nav-hamburger svg { stroke: var(--ink); }

.nav-logo { display: flex; align-items: center; flex-shrink: 0; margin-right: var(--space-8); }

.logo-placeholder {
  width: 140px; height: 40px;
  border: 1.5px dashed rgba(255,255,255,.35);
  border-radius: var(--radius-md);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 1px;
  font-family: var(--font-display); font-size: 10px; font-weight: 700;
  color: rgba(255,255,255,.4);
  line-height: 1.3; text-align: center;
  letter-spacing: .04em;
  transition: border-color 250ms, color 250ms;
}

.navbar.scrolled .logo-placeholder,
.navbar.solid .logo-placeholder {
  border-color: var(--border-strong);
  color: var(--ink-faint);
}

.logo-mark {
  width: 38px; height: 38px;
  background: var(--brand);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: 15px; font-weight: 700;
  color: var(--ink-on-brand);
  flex-shrink: 0;
}

.logo-text {
  font-family: var(--font-display); font-size: 15px; font-weight: 700;
  color: #fff; line-height: 1.2;
  transition: color 250ms;
}

.logo-text span {
  display: block; font-size: 10px; font-weight: 500;
  color: rgba(255,255,255,.7); letter-spacing: .05em;
  text-transform: uppercase;
  transition: color 250ms;
}

.nav-links {
  display: flex; gap: 2px;
  position: absolute; left: 50%; transform: translateX(-50%);
}

.nav-link {
  padding: 6px 12px;
  border-radius: var(--radius-md);
  font-family: var(--font-display); font-size: 14px; font-weight: 500;
  color: rgba(255,255,255,.85);
  transition: all 150ms;
}

.nav-link:hover { background: rgba(255,255,255,.12); color: #fff; }
.nav-link.active { color: #fff; font-weight: 600; }

.nav-cta-wrapper { margin-left: auto; flex-shrink: 0; }

.nav-hamburger {
  display: none;
  background: none; border: none;
  padding: var(--space-2); margin-left: auto;
  align-items: center; justify-content: center;
}

.nav-hamburger svg { width: 24px; height: 24px; stroke: #fff; transition: stroke 250ms; }

.nav-drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: 280px;
  background: var(--surface); box-shadow: var(--shadow-lg);
  z-index: 200; padding: var(--space-8) var(--space-6);
  display: flex; flex-direction: column; gap: var(--space-2);
  transform: translateX(100%); transition: transform 250ms ease-out;
}

.nav-drawer.open { transform: translateX(0); }

.nav-drawer-link {
  font-family: var(--font-display); font-size: 16px; font-weight: 500;
  color: var(--ink); padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md); transition: background 150ms;
}

.nav-drawer-link:hover { background: var(--surface-alt); }

.nav-drawer-close {
  position: absolute; top: var(--space-4); right: var(--space-4);
  background: none; border: none; padding: var(--space-2); cursor: pointer;
}

.nav-overlay {
  position: fixed; inset: 0;
  background: var(--overlay); z-index: 150;
  opacity: 0; pointer-events: none; transition: opacity 250ms;
}

.nav-overlay.open { opacity: 1; pointer-events: all; }

@media (max-width: 767px) {
  .nav-links, .nav-cta-wrapper { display: none; }
  .nav-hamburger { display: flex; }
  .navbar { padding: 0 var(--space-4); }
}