/* =====================================================
   nav.css — Navigation Bar + Mobile Menu
   Edit this file to change: nav height, colors, links
===================================================== */

nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 500;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 48px;
  background: rgba(8,12,20,0.9);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s, box-shadow 0.3s;
}
nav.scrolled { background: rgba(8,12,20,0.98); box-shadow: 0 4px 24px rgba(0,0,0,0.4); }

/* Logo */
.nav-logo {
  font-family: var(--font-display); font-size: 0.93rem;
  font-weight: 700; letter-spacing: 0.04em; color: var(--text);
  display: flex; align-items: center; gap: 8px;
}
.nav-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 10px var(--accent);
  animation: navDotPulse 2.4s ease-in-out infinite;
}
@keyframes navDotPulse {
  0%,100% { box-shadow: 0 0 8px var(--accent); }
  50%      { box-shadow: 0 0 20px var(--accent), 0 0 38px var(--accent3); }
}
.nav-accent { color: var(--accent); }

/* Desktop links */
.nav-links { display: flex; gap: 4px; }
.nav-link {
  padding: 7px 15px; border-radius: 8px;
  font-size: 0.875rem; font-weight: 500; color: var(--text2);
  transition: all 0.2s; cursor: pointer;
}
.nav-link:hover  { color: var(--text); background: rgba(255,255,255,0.05); }
.nav-link.active { background: var(--accent); color: #fff; }

/* Hamburger */
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 4px; background: none; border: none;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--text); border-radius: 2px; transition: all 0.3s var(--ease);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  position: fixed; top: var(--nav-h); left: 0; right: 0; z-index: 499;
  background: rgba(8,12,20,0.97); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 4px; padding: 16px 24px;
  transform: translateY(-110%); transition: transform 0.35s var(--ease);
}
.mobile-menu.open { transform: translateY(0); }
.mob-link {
  padding: 13px 16px; border-radius: 10px;
  color: var(--text2); font-size: 0.95rem; font-weight: 500; transition: all 0.2s;
}
.mob-link:hover, .mob-link.active { background: var(--accent); color: #fff; }

/* Responsive */
@media (max-width: 900px) {
  nav        { padding: 0 20px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
}