/* ══════════════════════════════════════════════════════════════════════════════
   APEX · Navigation Bar
   ══════════════════════════════════════════════════════════════════════════════ */

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  height: 62px;
  background: rgba(8,12,18,0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background var(--trans);
}

nav::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--teal-glow), transparent);
  opacity: 0.5;
}

/* ── Logo ────────────────────────────────────────────────────────────────────── */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--white);
  user-select: none;
}

.nav-logo .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 10px var(--teal), 0 0 20px var(--teal-glow);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 10px var(--teal), 0 0 20px var(--teal-glow); }
  50%      { opacity: 0.4; box-shadow: 0 0 4px var(--teal); }
}

/* ── Tabs ────────────────────────────────────────────────────────────────────── */
.nav-tabs { display: flex; gap: 4px; }

.nav-tab {
  padding: 6px 16px;
  border: 1px solid transparent;
  background: transparent;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: var(--text2);
  cursor: pointer;
  border-radius: var(--radius);
  transition: all var(--trans);
  text-transform: uppercase;
  position: relative;
  overflow: hidden;
}

.nav-tab::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--teal-dim), transparent);
  opacity: 0;
  transition: opacity var(--trans);
}

.nav-tab:hover {
  color: var(--teal);
  background: var(--teal-dim);
}
.nav-tab:hover::before { opacity: 1; }

.nav-tab.active {
  color: var(--teal);
  background: var(--teal-dim);
  border: 1px solid rgba(0,229,200,0.3);
  box-shadow: 0 0 12px rgba(0,229,200,0.1);
}

/* ── Badge ───────────────────────────────────────────────────────────────────── */
.nav-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--teal2);
  background: var(--teal-dim);
  border: 1px solid rgba(0,229,200,0.2);
  padding: 4px 10px;
  border-radius: 20px;
  transition: all var(--trans);
}

.nav-badge:hover {
  border-color: rgba(0,229,200,0.4);
  box-shadow: 0 0 12px rgba(0,229,200,0.12);
}