.hero-section{
    margin-top: 80px;
  }
  @media (max-width: 768px) and (min-width: 500px) {
  .hero-section {
    margin-top: 100px;
  }
}
@media (max-width: 500px) and (min-width: 0px) {
  .hero-section {
    margin-top: 120px;
  }
}

  @keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
  }
  @keyframes float-rev {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(15px); }
  }



  .text-gradient {
    background: linear-gradient(90deg, #015c8b, #66c6ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }

  .btn-gradient {
    background: linear-gradient(to right, #0077c2, #00aaff);
    color: white;
    font-weight: 600;
    border: none;
    transition: all 0.3s ease;
    padding: 12px 18px;
  }

  .btn-gradient:hover {
    opacity: 0.95;
    transform: scale(1.02);
    box-shadow: 0 0 0 4px rgba(0, 119, 194, 0.1);
  }

  .btn-group .btn.active {
    background-color: #0077c2 !important;
    color: white !important;
  }

  .btn-group .btn {
    transition: all 0.2s ease-in-out;
  }

  .glass-card {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(6px);
    border-radius: 20px;
    padding: 35px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.08);
  }

  .result-box {
    color: #e1e1e1;
    border-radius: 20px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    color: #fff;
    padding: 40px;
    transition: all 0.3s ease-in-out;
  }

  .result-box h2 {
    font-size: 3rem;
  }

  

  .glowing-label {
    font-weight: 600;
    font-size: 1rem;
    color: #003366;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
    display: block;
    margin-bottom: 6px;
  }

  .custom-range {
  -webkit-appearance: none;
  width: 100%;
  height: 6px; /* Slim track */
  background: linear-gradient(90deg, #0077c2, #66ccff);
  border-radius: 3px;
  outline: none;
  transition: background 0.3s ease;
  margin-top: 12px;
  position: relative;
  padding: 8px;
}

/* Chrome / Safari Thumb */
.custom-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  height: 25px;
  width: 25px;
  background: white;
  border: 3px solid #0077c2;
  border-radius: 50%;
  box-shadow: 0 0 6px rgba(0, 119, 194, 0.4);
  cursor: pointer;
  margin-top: -1px; /* PERFECT vertical center */
  transition: transform 0.2s ease;
}

.custom-range::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

/* Firefox Thumb */
.custom-range::-moz-range-thumb {
  height: 18px;
  width: 18px;
  background: white;
  border: 3px solid #0077c2;
  border-radius: 50%;
  box-shadow: 0 0 6px rgba(0, 119, 194, 0.4);
  cursor: pointer;
}

/* Track fallback for Firefox */
.custom-range::-moz-range-track {
  background: linear-gradient(90deg, #0077c2, #66ccff);
  height: 6px;
  border-radius: 3px;
}

  .form-text {
    font-size: 0.95rem;
  }