/* ========= NAV NEO (Glass + Underline + Fullscreen Mobile) ========= */
:root {
  --nav-bg: rgba(16, 18, 27, 0.45);
  --nav-stroke: rgba(255, 255, 255, 0.08);
  --nav-txt: #eaf2ff;
  --nav-muted: #b7c2d8;
  --brand: #22c1c3;
  --brand2: #0aa1ff;
  --ring: rgba(80, 180, 255, 0.4);
  --shadow: 0 8px 26px rgba(6, 11, 40, 0.18);
  --blur: saturate(180%) blur(14px);
  --radius: 14px;
}

/* Base */
.glass-nav {
  background: linear-gradient(180deg, var(--nav-bg), rgba(16, 18, 27, 0.25));
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-bottom: 1px solid var(--nav-stroke);
  box-shadow: none;
  transition: box-shadow 0.25s ease, background 0.25s ease, transform 0.3s ease;
}
.glass-nav .navbar-brand,
.glass-nav .nav-link {
  color: var(--nav-txt);
}

/* Scroll shadow + compact state */
.scrolled .glass-nav {
  box-shadow: var(--shadow);
  background: linear-gradient(
    180deg,
    rgba(16, 18, 27, 0.68),
    rgba(16, 18, 27, 0.36)
  );
}

/* Brand */
.brand-wrap {
  position: relative;
  padding-left: 6px;
}
.brand-logo {
  width: 36px;
  height: 36px;
  object-fit: cover;
  border-radius: 9px;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
}
.brand-text {
  font-family: "Poppins", system-ui, sans-serif;
  letter-spacing: 0.3px;
}
.brand-ring {
  position: absolute;
  left: -10px;
  top: 50%;
  width: 40px;
  height: 40px;
  transform: translateY(-50%);
  border-radius: 50%;
  background: radial-gradient(60% 60% at 50% 50%, var(--ring), transparent 70%);
  filter: blur(6px);
  opacity: 0.9;
  pointer-events: none;
  animation: glowPulse 2.8s ease-in-out infinite;
}
@keyframes glowPulse {
  0%,
  100% {
    transform: translateY(-50%) scale(1);
  }
  50% {
    transform: translateY(-50%) scale(1.08);
  }
}

/* Nav links with active underline */
.nav-pillset .nav-link {
  position: relative;
  padding: 0.5rem 0.75rem;
  margin: 0.25rem 0.15rem;
  font-weight: 500;
  color: var(--nav-muted);
  transition: color 0.2s ease, opacity 0.2s ease;
}
.nav-pillset .nav-link:hover {
  color: #fff;
}
.nav-pillset .nav-link::after {
  content: "";
  position: absolute;
  left: 12%;
  right: 12%;
  bottom: -6px;
  height: 2px;
  background: linear-gradient(90deg, var(--brand), var(--brand2));
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.28s ease;
}
.nav-pillset .nav-link:hover::after {
  transform: scaleX(1);
}
.nav-pillset .nav-link.active {
  color: #fff;
}
.nav-pillset .nav-link.active::after {
  transform: scaleX(1);
}

/* CTA ghost button refinement (keeps your theme) */
.cta-ghost {
  border: 1px solid rgba(255, 255, 255, 0.18) !important;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.08),
    rgba(255, 255, 255, 0.02)
  );
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-radius: 999px;
  transition: transform 0.15s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.cta-ghost:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.22);
}

/* Decorative desktop glow line */
.nav-glow {
  position: absolute;
  left: 50%;
  bottom: -1px;
  transform: translateX(-50%);
  width: 68%;
  height: 1px;
  pointer-events: none;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(34, 193, 195, 0.8),
    rgba(10, 161, 255, 0.9),
    transparent
  );
  filter: drop-shadow(0 0 14px rgba(80, 180, 255, 0.45));
  opacity: 0.85;
}

/* Toggler (hamburger -> X) */
.nav-toggle {
  border: 0;
  padding: 0.25rem 0.2rem;
  outline: none !important;
}
.nav-toggle .bar {
  display: block;
  width: 26px;
  height: 2px;
  margin: 6px 0;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] .bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ===== Mobile fullscreen collapse ===== */
@media (max-width: 991.98px) {
  #navMenu.collapse {
    transition: none;
  }
  #navMenu.show {
    position: fixed;
    inset: 0;
    z-index: 1040;
    display: flex !important;
    align-items: center;
    justify-content: center;
    background: radial-gradient(
      120% 100% at 50% 0%,
      rgba(20, 24, 38, 0.95),
      rgba(15, 18, 30, 0.92)
    );
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
  }
  #navMenu .navbar-nav {
    gap: 0.25rem;
    align-items: center;
  }
  #navMenu .nav-link {
    font-size: 1.25rem;
    padding: 0.6rem 1rem;
  }
  #navMenu .nav-link::after {
    bottom: -2px;
    height: 3px;
  }
  body.menu-open {
    overflow: hidden;
  }
}

/* Progressive scroll bar (optional — if you have #scroll-progress element) */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--brand), var(--brand2));
  z-index: 2000;
  box-shadow: 0 0 10px rgba(10, 161, 255, 0.55);
  transition: width 0.1s linear;
}