@font-face {
    font-family: 'LucideIcons';
    src: url(https://cdn.jsdelivr.net/npm/lucide-static@latest/font/Lucide.ttf) format('truetype');
  }
  .lucide {
    font-family: 'LucideIcons';
    font-style: normal;
    font-weight: normal;
    font-variant: normal;
    text-rendering: auto;
    line-height: 1;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    display: inline-block;
    vertical-align: middle;
  }
  /* Custom styles for calculator results animation */
  .result-value {
    transition: color 0.5s cubic-bezier(0.19, 1, 0.22, 1), 
                transform 0.5s cubic-bezier(0.19, 1, 0.22, 1);
  }
  .result-value.updated {
    transform: scale(1.08);
  }
  .result-card.highlight .result-value.updated {
    color: white;
  }
  
  /* Refined card hover effects */
  .feature-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px -5px rgba(0, 44, 122, 0.1);
  }
  
  /* Sophisticated accordion styling */
  details > summary {
    list-style: none;
    cursor: pointer;
    position: relative;
    padding-left: 2rem;
  }
  details > summary::-webkit-details-marker {
    display: none;
  }
  details > summary::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 22px;
    height: 22px;
    background-color: #e6f0ff;
    border-radius: 50%;
  }
  details > summary::after {
    content: '+';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 22px;
    height: 22px;
    text-align: center;
    line-height: 22px;
    color: #1e40af;
    font-weight: bold;
    transition: transform 0.3s;
  }
  details[open] > summary::after {
    content: '−';
    transform: translateY(-50%) rotate(180deg);
  }
  
  /* Enhanced animated components */
  .pulse-dot {
    position: relative;
  }
  .pulse-dot::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: rgba(59, 130, 246, 0.5);
    border-radius: 50%;
    animation: pulse 2s infinite;
  }
  
  @keyframes pulse {
    0% {
      transform: scale(1);
      opacity: 1;
    }
    50% {
      transform: scale(1.5);
      opacity: 0;
    }
    100% {
      transform: scale(1);
      opacity: 0;
    }
  }
  
  /* Payment flow animation */
  .payment-flow {
    position: relative;
    height: 6px;
    background: #e6f0ff;
    border-radius: 3px;
    overflow: hidden;
  }
  .payment-flow::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 30%;
    background: linear-gradient(90deg, #1e40af, #3b82f6);
    border-radius: 3px;
    animation: flowAnimation 3s infinite;
  }
  
  @keyframes flowAnimation {
    0% {
      left: -30%;
    }
    100% {
      left: 100%;
    }
  }
  
  /* Modern select dropdown styling */
  select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23172554' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1.2em 1.2em;
    padding-right: 2.5rem;
  }
  
  /* Progress indicators */
  .dot-indicator {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin: 0 5px;
  }
  
  /* Ensure html has scroll behavior */
  html {
    scroll-behavior: smooth;
  }
  
  /* Data Visualization Animation */
  .chart-container {
    position: relative;
    height: 250px;
    margin: 20px 0;
  }
  
  /* Loading animation */
  .loading-bar {
    height: 3px;
    width: 0;
    background: linear-gradient(90deg, #1e40af, #3b82f6);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 9999;
    animation: loadingProgress 3s ease-out forwards;
  }
  
  @keyframes loadingProgress {
    0% { width: 0; }
    100% { width: 100%; }
  }