/* ─── CUSTOM CURSOR ─────────────────────────────────────────── */
.cursor {
  width: 10px; height: 10px;
  background: var(--accent);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.15s, height 0.15s;
  box-shadow: 0 0 8px var(--accent), 0 0 20px var(--accent-glow);
}
.cursor-ring {
  width: 32px; height: 32px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s;
  opacity: 0.4;
}

/* ─── NAV ───────────────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.4rem 3rem;
  border-bottom: 1px solid transparent;
  transition: all 0.3s;
}
nav.scrolled {
  background: rgba(8, 8, 18, 0.92);
  border-color: var(--border);
  backdrop-filter: blur(16px);
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 0.6rem;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.05em;
  text-shadow: 0 0 12px var(--accent-glow);
  line-height: 1;
}
.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 0.2s, text-shadow 0.2s;
}
.nav-links a:hover {
  color: var(--accent);
  text-shadow: 0 0 12px var(--accent-glow);
}

/* ─── ACTIVE NAV LINK ───────────────────────────────────────── */
.nav-links a.nav-active {
  color: var(--accent);
  text-shadow: 0 0 12px var(--accent-glow);
}

/* ─── HAMBURGER BUTTON ──────────────────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: transparent;
  border: 1px solid var(--border2);
  cursor: none;
  position: fixed;
  top: 1.2rem; right: 1.5rem;
  z-index: 200;
  padding: 0;
  transition: border-color 0.2s;
}
.hamburger:hover { border-color: var(--accent); cursor: pointer; }
.hamburger span {
  display: block;
  width: 18px; height: 1.5px;
  background: var(--text);
  transition: all 0.3s ease;
  transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ─── MOBILE NAV OVERLAY ────────────────────────────────────── */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(8,8,18,0.97);
  z-index: 150;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  backdrop-filter: blur(12px);
}
.mobile-nav-overlay.open {
  opacity: 1;
  pointer-events: all;
}
.mobile-nav-overlay a {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--text-dim);
  text-decoration: none;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 0.2s, text-shadow 0.2s;
  line-height: 2;
}
.mobile-nav-overlay a:hover,
.mobile-nav-overlay a.nav-active {
  color: var(--accent);
  text-shadow: 0 0 16px var(--accent-glow);
}
.mobile-nav-divider {
  width: 40px; height: 1px;
  background: var(--border2);
}

/* ─── RESPONSIVE NAV ────────────────────────────────────────── */
@media (max-width: 768px) {
  nav { padding: 1.2rem 1.5rem; }
  .nav-logo { font-size: 0.45rem; }
  .nav-links { display: none; }
  .hamburger { display: flex; cursor: pointer; }
  .mobile-nav-overlay { display: flex; }
}