/* ─── ZSky AI — Unified Nav Styles with Limelight ─── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 1.25rem 3rem; display: flex; align-items: center; justify-content: space-between;
  background: rgba(3,3,6,0.85); backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.logo {
  font-family: 'Silkscreen', cursive; font-size: 1.3rem; font-weight: 700;
  color: #fff; letter-spacing: 0.02em; text-transform: lowercase;
  text-decoration: none; z-index: 2;
}
.logo span {
  font-weight: 700;
  background: linear-gradient(135deg, #38bdf8, #818cf8);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.nav-links {
  display: flex; gap: 2.5rem; list-style: none; z-index: 2;
  position: relative;
}
.nav-links a {
  color: #6b6b80; text-decoration: none; font-size: 0.875rem; font-weight: 500;
  transition: color 0.3s; position: relative; padding: 0.25rem 0;
}
.nav-links a:hover { color: #fff; }
.nav-links a.active { color: #fff; }

/* Limelight beam */
.nav-limelight {
  position: absolute; top: -8px; height: 3px; width: 30px;
  border-radius: 2px;
  background: #38bdf8;
  box-shadow: 0 4px 12px #38bdf8, 0 8px 24px rgba(56,189,248,0.3);
  transition: left 0.35s cubic-bezier(0.4, 0, 0.15, 1), width 0.35s cubic-bezier(0.4, 0, 0.15, 1);
  pointer-events: none;
}
.nav-limelight::after {
  content: ''; position: absolute; left: -15%; top: 3px;
  width: 130%; height: 40px;
  clip-path: polygon(10% 0%, 90% 0%, 75% 100%, 25% 100%);
  background: linear-gradient(to bottom, rgba(56,189,248,0.25), transparent);
  pointer-events: none;
}

.nav-actions { display: flex; gap: 0.75rem; z-index: 2; align-items: center; }
.btn-ghost {
  padding: 0.55rem 1.25rem; border: 1px solid rgba(255,255,255,0.1); border-radius: 10px;
  background: rgba(255,255,255,0.03); color: #e0e0ec; font-size: 0.85rem; font-weight: 500;
  cursor: pointer; transition: all 0.3s; font-family: inherit;
  backdrop-filter: blur(10px);
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.2); background: rgba(255,255,255,0.06); }
.btn-primary {
  padding: 0.55rem 1.5rem; border: none; border-radius: 10px;
  background: linear-gradient(135deg, #38bdf8, #818cf8);
  color: #fff; font-size: 0.85rem; font-weight: 600; cursor: pointer;
  transition: all 0.3s; font-family: inherit; text-decoration: none;
  display: inline-flex; align-items: center;
}
.btn-primary:hover { opacity: 0.9; color: #fff; }
.hamburger {
  display: none; background: none; border: none; color: #fff;
  cursor: pointer; padding: 4px; z-index: 100;
}
.hamburger svg { width: 24px; height: 24px; }

/* Mobile menu */
.mobile-menu {
  display: none; position: fixed; inset: 0; z-index: 9998;
  background: rgba(3,3,6,0.98); backdrop-filter: blur(20px);
  flex-direction: column; align-items: center; justify-content: center; gap: 1.5rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu a { color: #e0e0ec; text-decoration: none; font-size: 1.2rem; }
.mobile-menu-close {
  position: absolute; top: 1rem; right: 1.25rem;
  background: none; border: none; color: #e0e0ec; font-size: 2rem; cursor: pointer;
}

@media (max-width: 768px) {
  nav { padding: 1rem 1.5rem; }
  .nav-links { display: none !important; }
  .hamburger { display: block; }
  .nav-actions .btn-ghost { display: none; }
}