:root {
    /* Colors */
    --primary: #1B75BC;
    --primary-dark: #073957;
    --primary-light: #D6EBF7;
    --secondary: #1B75BC;
    --secondary-hover: #90E0EF;
    --accent: #00B4D8;
    
    /* Background Colors */
    --light-bg: #F8FCFF;
    --feature-bg: #E8F1F8;
    --section-bg: #EBF5FC;
    
    /* Text Colors */
    --dark-text: #2C3E50;
    --medium-text: #3D5A80;
    --light-text: #607D8B;
    
    /* Border Colors */
    --border-light: #CAF0F8;
    --border-medium: #90E0EF;
  }
  
body {
    background-color: #FFFFFF;
    margin: 0;
    padding: 0;
    color: var(--medium-text);
    overflow-x: hidden;
  }
  
  h1, h2, h3, h4, h5, h6 {
    color: var(--dark-text);
  }
  
  .bg-primary {
    background-color: var(--primary);
  }
  
  .bg-secondary {
    background-color: var(--secondary);
  }
  
  .text-primary {
    color: var(--primary);
  }
  
  .text-secondary {
    color: var(--secondary);
  }
  
  .text-dark {
    color: var(--dark-text);
  }
  
  .text-medium {
    color: var(--medium-text);
  }
  
  .text-light {
    color: var(--light-text);
  }
  
  .border-light {
    border-color: var(--border-light);
  }
  
  .border-medium {
    border-color: var(--border-medium);
  }
  

  .btn-primary {
    background-color: var(--primary);
    color: white;
  }
  
  .btn-primary:hover {
    background-color: var(--primary-dark);
  }
  
  .btn-secondary {
    background-color: var(--secondary);
    color: white;
    transition: all 0.3s ease;
  }
  
  .btn-secondary:hover {
    background-color: var(--secondary-hover);
    transform: translateY(-2px);
  }
  

  .section-bg {
    background-color: var(--section-bg);
  }
  
  .feature-bg {
    background-color: var(--feature-bg);
  } 

#particles-js {
  background: linear-gradient(135deg, #0282c2 0%, #039be7 100%);
  opacity: 0.9;
  }
/* Cloud Animation */
.cloud {
  position: absolute;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  width: 100px;
  height: 60px;
  filter: blur(10px);
}
.cloud:before, .cloud:after {
  content: '';
  position: absolute;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
}
.cloud:before {
  width: 60px;
  height: 60px;
  top: -30px;
  left: 15px;
}
.cloud:after {
  width: 70px;
  height: 70px;
  top: -25px;
  right: 15px;
}

.cloud-1 {
  top: 15%;
  left: 20%;
  transform: scale(2);
  opacity: 0.4;
  animation: float 25s linear infinite;
}

.cloud-2 {
  top: 45%;
  right: 15%;
  transform: scale(1.5);
  opacity: 0.3;
  animation: float 35s linear infinite 5s;
}

.cloud-3 {
  bottom: 20%;
  left: 30%;
  transform: scale(1.8);
  opacity: 0.2;
  animation: float 30s linear infinite 10s;
}

.cloud-4 {
  top: 30%;
  left: 60%;
  transform: scale(1.2);
  opacity: 0.25;
  animation: float 28s linear infinite 7s;
}

@keyframes float {
  0% {
    transform: translateX(-100%) scale(1.5);
    opacity: 0;
  }
  10% {
    opacity: 0.3;
  }
  90% {
    opacity: 0.2;
  }
  100% {
    transform: translateX(100vw) scale(2);
    opacity: 0;
  }
}
/* custom checkbox */
input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid var(--primary);
  border-radius: 4px;
  background-color: white;
  cursor: pointer;
  position: relative;
}

input[type="checkbox"]:checked {
  background-color: var(--primary);
}

input[type="checkbox"]:checked::after {
  content: '✓';
  color: white;
  font-size: 14px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-weight: bold;
}