@import url('https://fonts.googleapis.com/css2?family=Quicksand:wght@300;400;500;600;700&display=swap');
        
  *{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    outline:none;
    text-decoration: none;
    border:none;
    font-family: 'Quicksand', sans-serif;
    list-style: none;
    font-weight: 500;
  }

  :root {
    --primary-color: linear-gradient(135deg, #4ade80, #16a34a);
    --one:#4ade80;
    --two:#16a34a;
    
  }
  .bg-green{
    color: var(--two);
  }
  .bg-coo{
    background:var(--two);
  }
  .hover:hover{
    cursor: pointer;
    color: #16a34a;
  }
   .bghover:hover{
    cursor: pointer;
    background-color: #16a34a60;
    color: white;
  }
  .bg-one{
    background: #4ade80;
  }

    .bg-two{
        background: #16a34a;
    }
  .active-tab{
    color: #16a34a;
    font-weight: 700;
  }

  .bg-linear{
    background:#16a34af3;
  }
        body {
        
            background-color: #ffffff;
        }
        
        .nav-item {
            position: relative;
            transition: all 0.3s ease;
        }
        
        .nav-item:hover::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--primary-color);
            border-radius: 3px;
        }
        
        .btn-primary {
            background: var(--primary-color);
            color: white;
            transition: all 0.2s ease;
            transform: translateY(0);
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
        }
        
        .card {
            transition: all 0.3s ease;
            border-radius: 12px;
        }
        
        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        
        .active-tab {
            border-bottom: 3px solid  var(--primary-color);
            font-weight: 600;
        }
        
        .message-bubble {
            max-width: 70%;
            border-radius: 18px;
        }
        
        .code-editor {
            font-family: 'Fira Code', monospace;
            background-color: #f8f9fa;
            border-radius: 8px;
        }
        
        .pulse {
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }
        
        .section { display: none; }
        .section.active { display: block; }

      
    
        
        .card-hover {
            transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }
        
        .card-hover:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }
        
        .comment-input {
            transition: all 0.3s;
        }
        
        .comment-input:focus {
            box-shadow: 0 0 0 2px rgba(0,0,0,0.1);
        }
        
        .like-btn:hover .like-icon {
            color: #ef4444;
        }
        
        .like-btn.active .like-icon {
            color: #ef4444;
        }
        
        .reply-btn:hover .reply-icon {
            color:  var(--primary-color);
        }

         .course-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
        }
        
        .live-indicator {
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0% { opacity: 1; }
            50% { opacity: 0.6; }
            100% { opacity: 1; }
        }
        
        .progress-ring__circle {
            transition: stroke-dashoffset 0.5s;
            transform: rotate(-90deg);
            transform-origin: 50% 50%;
        }
        
        .enrollment-card:hover .enroll-btn {
            background: var(--primary-color);
            color: white;
        }
        
        .tab-active {
            border-bottom: 2px solid black;
            font-weight: 600;
        }