/* ---------- Навигация ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  z-index: 100;
  background: rgba(6, 10, 20, 0.72);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}
.logo:hover { color: var(--text-primary); }

.logo-dot {
  position: relative;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow-strong);
}
.logo-dot::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2.2s ease-out infinite;
}

@keyframes pulse {
  0%   { transform: scale(1);   opacity: .7; }
  100% { transform: scale(2.8); opacity: 0; }
}

.nav-links {
  display: none;
  align-items: center;
  gap: 32px;
}
.nav-links a:not(.btn) {
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  transition: color .2s;
}
.nav-links a:not(.btn):hover,
.nav-links a[aria-current="page"] { color: var(--text-primary); }

.burger {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  margin-right: -10px;
  background: none;
  border: 0;
  border-radius: 10px;
  cursor: pointer;
}
.burger span {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--text-primary);
  transition: transform .25s, opacity .2s;
}
.nav.open .burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.open .burger span:nth-child(2) { opacity: 0; }
.nav.open .burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  position: absolute;
  top: 72px;
  left: 0;
  right: 0;
  padding: 8px 20px 20px;
  background: rgba(6, 10, 20, 0.97);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav.open .mobile-menu { display: block; }

.mobile-menu a:not(.btn) {
  display: flex;
  align-items: center;
  min-height: 52px;
  font-size: 17px;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}
.mobile-menu a:not(.btn)[aria-current="page"] { color: var(--text-primary); }
.mobile-menu .btn { margin-top: 16px; }

@media (min-width: 860px) {
  .nav-links { display: flex; }
  .burger, .mobile-menu, .nav.open .mobile-menu { display: none; }
}