/* ============================================================
   NAVIGATION.CSS — Glass Navigation Bar — INSANE EDITION
   ============================================================ */

.navbar {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  width: calc(100% - 48px);
  max-width: var(--max-width);
  border-radius: var(--radius-full);
  padding: 0 8px;
  background: rgba(10, 15, 30, 0.65);
  backdrop-filter: blur(48px);
  -webkit-backdrop-filter: blur(48px);
  transition: all var(--transition-smooth);
  animation: glass-hue 10s ease-in-out infinite;
}

.navbar::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 20px;
  right: 20px;
  height: 2px;
  background: var(--grad-rainbow);
  background-size: 200% auto;
  border-radius: 2px;
  opacity: 1;
  transition: all var(--transition-smooth);
  animation: rainbow-border 2s linear infinite;
}

.navbar.scrolled::after {
  left: 0;
  right: 0;
  border-radius: 0;
}

.navbar.scrolled {
  top: 0;
  width: 100%;
  max-width: none;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  box-shadow:
    0 4px 40px rgba(0,0,0,0.3),
    0 0 60px rgba(77, 166, 255, 0.3),
    0 0 120px rgba(77, 166, 255, 0.16);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 20px;
  height: var(--nav-height);
}

/* ── Logo ── */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  position: relative;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-orb {
  position: absolute;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--grad-aero);
  box-shadow:
    0 0 45px rgba(0, 180, 240, 0.5),
    0 0 90px rgba(0, 180, 240, 0.3),
    inset 0 2px 0 rgba(255,255,255,0.4);
  animation: logo-pulse 0.8s ease-in-out infinite;
}

@keyframes logo-pulse {
  0%, 100% {
    box-shadow: 0 0 60px rgba(0,180,240,0.6), 0 0 120px rgba(0,180,240,0.3), inset 0 2px 0 rgba(255,255,255,0.4);
  }
  50% {
    box-shadow:
      0 0 120px rgba(0,200,255,0.9),
      0 0 240px rgba(0,200,255,0.6),
      0 0 360px rgba(100,100,255,0.3),
      inset 0 3px 0 rgba(255,255,255,0.5);
  }
}

.logo-ring {
  position: absolute;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: none;
  background: conic-gradient(from 0deg, var(--glow-cyan), var(--glow-blue), var(--glow-purple), var(--glow-pink), var(--glow-cyan));
  -webkit-mask: radial-gradient(circle, transparent 15px, black 17px);
  mask: radial-gradient(circle, transparent 15px, black 17px);
  animation: logo-ring-spin 5s linear infinite;
  filter: drop-shadow(0 0 6px var(--glow-cyan));
}

@keyframes logo-ring-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.02em;
}

.logo-accent {
  background: var(--grad-aero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-icon--sm { width: 32px; height: 32px; }
.logo-icon--sm .logo-orb { width: 22px; height: 22px; }
.logo-icon--sm .logo-ring { width: 30px; height: 30px; }

/* ── Nav Links ── */
.nav-links {
  display: flex;
  gap: 8px;
}

.nav-link {
  position: relative;
  padding: 10px 20px;
  font-size: 0.925rem;
  font-weight: 500;
  color: rgba(200, 215, 240, 0.7);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  text-shadow:
    0 0 4px var(--glow-cyan),
    0 0 8px var(--glow-purple);
}

.nav-link::before {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  border-radius: 2px;
  background: var(--grad-rainbow);
  opacity: 1;
  transition: all var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: #fff;
  background: var(--glass-bg-light);
  box-shadow: 0 0 20px var(--glow-cyan);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--grad-rainbow);
  box-shadow:
    0 0 24px var(--glow-cyan),
    0 0 48px var(--glow-purple),
    0 0 72px var(--glow-pink);
  animation: dot-pulse 1s ease-in-out infinite;
}

@keyframes dot-pulse {
  0%, 100% {
    box-shadow:
      0 0 24px var(--glow-cyan),
      0 0 48px var(--glow-purple);
    transform: translateX(-50%) scale(1);
  }
  50% {
    box-shadow:
      0 0 60px var(--glow-cyan),
      0 0 120px var(--glow-purple),
      0 0 180px var(--glow-pink),
      0 0 240px var(--glow-blue);
    transform: translateX(-50%) scale(1.4);
  }
}

/* ── Nav CTA ── */
.nav-cta {
  position: relative;
  white-space: nowrap;
}

.nav-cta::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: conic-gradient(from var(--angle, 0deg), var(--glow-cyan), var(--glow-purple), var(--glow-pink), var(--glow-orange), var(--glow-cyan));
  z-index: -1;
  animation: electric-border 2s linear infinite;
}

@keyframes electric-border {
  from { --angle: 0deg; }
  to   { --angle: 360deg; }
}

@property --angle {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}

/* ── Animations ── */

@keyframes rainbow-border {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

@keyframes glass-hue {
  0%, 100% {
    backdrop-filter: hue-rotate(-5deg) blur(48px);
    -webkit-backdrop-filter: hue-rotate(-5deg) blur(48px);
  }
  50% {
    backdrop-filter: hue-rotate(5deg) blur(48px);
    -webkit-backdrop-filter: hue-rotate(5deg) blur(48px);
  }
}