/* ============================================================
   Oh Wow Cloud — Navigation
   ============================================================ */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-modal);
  padding: var(--space-5) var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--duration-slow) var(--ease-out),
              border-color var(--duration-slow) var(--ease-out),
              backdrop-filter var(--duration-slow) var(--ease-out);
  border-bottom: 1px solid transparent;
}

.site-nav.scrolled {
  background: rgba(8,12,16,0.85);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-color: var(--clr-border);
}

/* Logo */
.nav-logo {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--clr-white);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.nav-logo span { color: var(--clr-accent); }

/* Desktop links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-links a {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--clr-text-muted);
  letter-spacing: 0.01em;
  position: relative;
  transition: color var(--duration-fast) var(--ease-out);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--clr-accent);
  transition: width var(--duration-base) var(--ease-out);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--clr-white);
}
.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

/* CTA button in nav */
.nav-cta {
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  border: 1px solid var(--clr-accent);
  color: var(--clr-accent);
  transition: background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}
.nav-cta:hover {
  background: var(--clr-accent);
  color: var(--clr-bg);
  box-shadow: var(--glow-accent);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  height: 1.5px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: transform var(--duration-base) var(--ease-out),
              opacity var(--duration-base) var(--ease-out),
              width var(--duration-base) var(--ease-out);
}
.nav-hamburger span:nth-child(2) { width: 70%; }
.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; width: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile drawer */
.nav-mobile {
  display: none;
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-modal) - 1);
  background: rgba(8,12,16,0.97);
  backdrop-filter: blur(24px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-out);
}
.nav-mobile.open {
  display: flex;
  opacity: 1;
  pointer-events: all;
}
.nav-mobile a {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--clr-text-muted);
  transition: color var(--duration-fast) var(--ease-out);
}
.nav-mobile a:hover { color: var(--clr-accent); }

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