:root {
  --glass-bg: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.25);
  --glass-blur: 14px;
  --glass-shadow: 0 20px 50px rgba(0,0,0,0.6);
  --glass-radius: 18px;
  --glass-darkness: 0.35;
}

/* Glass hover base */

.navbar-glass .nav-item {
  position: relative;
}

/* Glass blur hover */

.navbar-glass .nav-link {
  position: relative;
  padding: 8px 16px;
  border-radius: 12px;
  transition: all 0.3s ease;
  z-index: 1;
}

/* Hover glass layer */

.navbar-glass .nav-link::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 12px;
  opacity: 0;
  transition: opacity 0.25s ease;
  z-index: -1;
  color: #f4e183;
}

/* Hover state */

.navbar-glass .nav-link:hover::before, .navbar-glass .nav-link.active::before {
  opacity: 1;
  color: #f4e183;
}

/* Text glow on hover */

.navbar-glass .nav-link:hover {
  color: #fff;
  text-shadow: #709ecd 8px rgba(255,255,255,0.3);
}

.navbar-glass .nav-link::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient( 120deg, rgba(255,255,255,0.25), rgba(255,255,255,0.05) );
  border-radius: 12px;
  opacity: 0;
  transform: translateX(-10px);
  transition: all 0.3s ease;
  z-index: -2;
}

.navbar-glass .nav-link:hover::after {
  opacity: 1;
  transform: translateX(0);
}

/* 🔹 Mobile-Friendly Fix (Important)
Glass blur can break on mobile menus if not handled. */

@media (max-width: 991px) {
  .navbar-glass .nav-link::before, .navbar-glass .nav-link::after {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(255,255,255,0.15);
  }
}

/* iOS Liquid Glass Button */

.btn-liquid {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  padding: 12px 28px;
  font-weight: 600;
  color: #fff;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.35);
  box-shadow: inset 0 1px 1px rgba(255,255,255,0.4), 0 10px 30px rgba(0,0,0,0.25);
  transition: all 0.3s ease;
}

/* Shine effect */

.btn-liquid::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient( 120deg, transparent, rgba(255,255,255,0.35), transparent );
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.btn-liquid:hover::before {
  transform: translateX(100%);
}

/* Hover */

.btn-liquid:hover {
  transform: translateY(-1px);
  box-shadow: inset 0 1px 1px rgba(255,255,255,0.5), 0 15px 40px rgba(0,0,0,0.35);
}

/* Active press */

.btn-liquid:active {
  transform: scale(0.97);
}

.btn-liquid.ios-blue {
  background: linear-gradient( 135deg, rgba(0,122,255,0.6), rgba(64,156,255,0.4) );
  border-color: rgba(255,255,255,0.45);
}

.btn-liquid {
  animation: liquidFloat 3s ease-in-out infinite;
}

/* Attach one gradient class to buttons or cards. */

/* iOS Blue */

.glass-blue {
  background: linear-gradient(135deg,#0a84ff,#409cff);
}

/* Purple */

.glass-purple {
  background: linear-gradient(135deg,#bf5af2,#da8fff);
}

/* Pink */

.glass-pink {
  background: linear-gradient(135deg,#ff375f,#ff7a8a);
}

/* Red */

.glass-red {
  background: linear-gradient(135deg,#ff453a,#ff7b72);
}

/* Orange */

.glass-orange {
  background: linear-gradient(135deg,#ff9f0a,#ffb340);
}

/* Yellow */

.glass-yellow {
  background: linear-gradient(135deg,#ffd60a,#ffe066);
  color: #000;
}

/* Green */

.glass-green {
  background: linear-gradient(135deg,#30d158,#6ee7b7);
}

/* Mint */

.glass-mint {
  background: linear-gradient(135deg,#00f2c3,#7cfadf);
}

/* Teal */

.glass-teal {
  background: linear-gradient(135deg,#64d2ff,#5ac8fa);
}

/* Indigo */

.glass-indigo {
  background: linear-gradient(135deg,#5e5ce6,#8e8dfa);
}

/* Graphite */

.glass-graphite {
  background: linear-gradient(135deg,#2c2c2e,#48484a);
}

/* Sunset */

.glass-sunset {
  background: linear-gradient(135deg,#ff7a18,#ffb347);
}

@keyframes liquidFloat {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-2px);
  }
}

.card-glass {
  position: relative;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 20px;
  box-shadow: 0 30px 70px rgba(0,0,0,0.6);
  color: #fff;
  overflow: hidden;
}

.card-glass::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, var(--glass-darkness));
}

/* Add this (Bootstrap-safe): */

.card-glass > * {
  position: relative;
  z-index: 1;
}

.card-glass.light {
  --glass-darkness: 0.12;
  color: #000;
}

.card-glass.dark-1 {
  --glass-darkness: 0.2;
}

.card-glass.dark-2 {
  --glass-darkness: 0.35;
}

.card-glass.dark-3 {
  --glass-darkness: 0.55;
}

.card-glass .card-header {
  background: transparent;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}

.card-glass .card-footer {
  background: transparent;
  border-top: 1px solid rgba(255,255,255,0.15);
}