/* ============================================================
   WayGo — Navigation
   Glass sticky nav with backdrop blur
   ============================================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  height: var(--nav-height);
  transition: background var(--duration-base) var(--ease-out-expo),
              box-shadow var(--duration-base) var(--ease-out-expo),
              transform var(--duration-base) var(--ease-out-expo);
}

.nav--scrolled {
  background: rgba(10, 10, 12, 0.72);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.nav--hidden {
  transform: translateY(-100%);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  transition: opacity var(--duration-fast) ease;
}

.nav-logo:hover {
  opacity: 0.9;
}

.nav-logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: 0 0 20px var(--brand-teal-glow);
}

.nav-logo-mark img {
  width: 100%;
  height: 100%;
  display: block;
}

.nav-logo-text {
  background: linear-gradient(135deg, #FAFAFA 0%, #A1A1AA 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  padding: 8px 16px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: color var(--duration-fast) ease,
              background var(--duration-fast) ease;
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

/* CTA Button */
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: white;
  background: var(--gradient-brand);
  border-radius: var(--radius-full);
  transition: box-shadow var(--duration-base) var(--ease-out-expo),
              transform var(--duration-fast) var(--ease-out-expo);
}

.nav-cta:hover {
  box-shadow: var(--shadow-glow-teal);
  transform: translateY(-1px);
}

.nav-cta:active {
  transform: translateY(0);
}

/* Mobile burger */
.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  z-index: calc(var(--z-nav) + 1);
}

.nav-burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: transform var(--duration-base) var(--ease-out-expo),
              opacity var(--duration-fast) ease;
}

.nav-burger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-burger.active span:nth-child(2) {
  opacity: 0;
}

.nav-burger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu */
.nav-mobile {
  display: none;
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-nav) - 1);
  background: rgba(7, 7, 8, 0.96);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  padding: calc(var(--nav-height) + 32px) var(--container-padding) 48px;
  flex-direction: column;
  gap: 8px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-base) var(--ease-out-expo),
              visibility var(--duration-base) var(--ease-out-expo);
}

.nav-mobile.active {
  opacity: 1;
  visibility: visible;
}

.nav-mobile .nav-link {
  font-size: 1.25rem;
  padding: 14px 20px;
}

.nav-mobile .nav-cta {
  margin-top: 16px;
  justify-content: center;
  width: 100%;
}

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

  .nav-burger {
    display: flex;
  }

  .nav-mobile {
    display: flex;
  }
}