body {
            font-family: 'Poppins', sans-serif;
            background-color: rgba(251, 248, 204, 1);
            margin: 0;
            padding: 0;
        }
      /* navbar */
      .navbar {
        background: linear-gradient(135deg, #001d3d, #3a86ff);
        padding: 12px 24px;
      }
  
      .navbar-brand img {
        width: 50px;
        height: 50px;
        object-fit: cover;
        border-radius: 50%;
        border: 2px solid #fff;
        box-shadow: 0 0 10px rgba(0,0,0,0.2);
      }
  
      .nav-link {
        color: #fff !important;
        font-weight: 500;
        margin-left: 15px;
        transition: all 0.3s ease-in-out;
        position: relative;
      }
  
      .nav-link::after {
        content: '';
        height: 3px;
        width: 0;
        background-color: #ffd60a;
        position: absolute;
        left: 0;
        bottom: -5px;
        transition: 0.3s;
      }
  
      .nav-link:hover::after {
        width: 100%;
      }
  
      .nav-link:hover {
        color: #ffd60a !important;
        transform: scale(1.05);
      }
  
      .navbar-toggler {
        border: none;
      }
  
      .navbar-toggler:focus {
        box-shadow: none;
      }
  
      .navbar-collapse {
        text-align: center;
      }
  
      @media (max-width: 768px) {
        .nav-link {
          margin: 10px 0;
        }
      }

      /* hero section */
      .hero {
        background: linear-gradient(135deg, #0a1930, #3a86ff);
        color: white;
        text-align: center;
        padding: 100px 20px;
        position: relative;
        overflow: hidden;
      }
      .hero h1 {
        font-size: 3rem;
        font-weight: 700;
        animation: fadeDown 1s ease-in-out;
      }
      .hero h1 span {
        color: #ffd700;
        animation: glow 2s ease-in-out infinite alternate;
      }
      .hero p {
        font-size: 1.2rem;
        margin-bottom: 30px;
        animation: fadeUp 1.5s ease-in-out;
      }
      .btn-primary, .btn-success {
        padding: 12px 25px;
        font-size: 1rem;
        border-radius: 30px;
        margin: 5px;
        font-weight: 600;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
      }
      .btn-primary:hover, .btn-success:hover {
        transform: scale(1.05);
        box-shadow: 0 0 10px rgba(255,255,255,0.5);
      }
      .floating-shapes {
        position: absolute;
        top: 0; left: 0;
        width: 100%; height: 100%;
        pointer-events: none;
        overflow: hidden;
      }
      .floating-shapes span {
        position: absolute;
        display: block;
        width: 20px; height: 20px;
        background: rgba(255,255,255,0.2);
        animation: float 10s linear infinite;
        border-radius: 50%;
      }
      .floating-shapes span:nth-child(1) { top: 10%; left: 20%; animation-duration: 12s; }
      .floating-shapes span:nth-child(2) { top: 30%; left: 70%; animation-duration: 8s; }
      .floating-shapes span:nth-child(3) { top: 80%; left: 10%; animation-duration: 14s; }
      .floating-shapes span:nth-child(4) { top: 50%; left: 50%; animation-duration: 10s; }
    
      @keyframes float {
        0% { transform: translateY(0) rotate(0deg); }
        100% { transform: translateY(-1000px) rotate(720deg); }
      }
      @keyframes fadeDown {
        0% { opacity: 0; transform: translateY(-30px); }
        100% { opacity: 1; transform: translateY(0); }
      }
      @keyframes fadeUp {
        0% { opacity: 0; transform: translateY(30px); }
        100% { opacity: 1; transform: translateY(0); }
      }
      @keyframes glow {
        from { text-shadow: 0 0 10px #ffd700; }
        to { text-shadow: 0 0 20px #fff, 0 0 30px #ffd700; }
      }


       /* Popup Styling */
.popup {
    display: none;
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    background: rgba(251, 248, 204, 1);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    width: 400px;
    max-width: 90%;
    animation: fadeIn 0.3s ease-in-out;
}

/* Fade-in animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translate(-50%, -55%);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

/* search and category filter */
#searchBar {
    width: 100%;
    max-width: 600px;
    margin: 2rem auto 1.5rem;
    padding: 0.7rem 1rem;
    border: 2px solid darkblue;
    border-radius: 30px;
    font-size: 1rem;
    transition: 0.3s ease;
    box-shadow: 0 0 5px rgba(0, 0, 139, 0.2);
  }
  #searchBar:focus {
    outline: none;
    box-shadow: 0 0 10px rgba(0, 0, 139, 0.5);
    border-color: #1a237e;
  }

  .category-btn {
    background-color: white;
    border: 2px solid darkblue;
    color: darkblue;
    padding: 10px 20px;
    margin: 0.3rem;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
  }

  .category-btn:hover {
    background-color: darkblue;
    color: white;
    box-shadow: 0 4px 12px rgba(0, 0, 139, 0.3);
    transform: scale(1.05);
  }

  .category-btn.active {
    background-color: #1a237e;
    color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 139, 0.4);
  }

  .filters-wrapper {
    text-align: center;
    margin-bottom: 2rem;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
  }


/* Popup Content */
.popup-content {
    text-align: center;
    font-family: 'Poppins', sans-serif;
    color: darkblue;
}

/* Close Button */
.close-btn {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 20px;
    cursor: pointer;
}

/* Input and Textarea Styling */
input, textarea {
    width: 100%;
    padding: 10px;
    margin-top: 8px;
    border-radius: 5px;
    border: 1px solid #ccc;
    font-size: 16px;
}

/* Submit Button */
button {
    background-color: darkblue;
    color: white;
    padding: 10px;
    border: none;
    cursor: pointer;
    border-radius: 5px;
    font-size: 16px;
    transition: 0.3s;
}
button:hover {
    background-color: #003366;
}

/* Responsive Styles */
@media (max-width: 600px) {
    .popup {
        width: 90%;
        height: auto;
        padding: 15px;
    }
    .popup-content {
        font-size: 14px;
    }
    input, textarea {
        font-size: 14px;
    }
    button {
        font-size: 14px;
        padding: 8px;
    }
}

@media (max-width: 400px) {
    .popup {
        width: 95%;
        padding: 10px;
    }
    .close-btn {
        font-size: 18px;
    }
}

        .watermark {
            position: fixed;
            bottom: 10px;
            right: 10px;
            font-size: 0.8rem;
            color: rgba(0, 0, 0, 0.5);
        }
        .blog-post {
            border: 1px solid darkblue;
            border-radius: 5px;
            padding: 15px;
            margin: 20px auto;
            background-color: white;
            max-width: 800px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            overflow: hidden;
        }
        .blog-title {
            font-size: 1.5rem;
            font-weight: bold;
            color: darkblue;
        }
        .blog-image {
            width: 100%;
            height: auto;
            border-radius: 5px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            overflow: hidden;
        }
        .blog-image:hover {
            transform: scale(1.05);
            box-shadow: 0 8px 12px rgba(0, 0, 0, 0.3);
        }
        .blog-content {
            font-size: 1rem;
            color: #333;
        }

        .date {
            display: block;
            margin-top: 10px;
            font-size: 14px;
            color: #555; 
            font-style: italic;
            text-align: right; 
            }


     /* code container styling */

    .code-section-title {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5em;
    color: #2c3e50;
    margin-top: 20px;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-left: 4px solid #3498db;
    padding-left: 10px;
    }

    pre {
        background-color: #f5f5f5; 
        border: 1px solid #ddd; 
        border-radius: 8px; 
        padding: 16px;
        overflow-x: auto; 
        margin: 20px 0;
    }

    code {
        font-family: "Courier New", Courier, monospace; 
        font-size: 14px; 
        line-height: 1.6;
        color: #2c3e50;
    }

    
    .code-keyword {
        color: #2980b9; 
        font-weight: bold; 
    }

    
    .code-string {
        color: #27ae60; 
    }

   
    .code-comment {
        color: #7f8c8d; 
        font-style: italic; 
    }

         .bookmark-btn, .share-btn,.comment-btn {
            padding: 10px 15px;
            margin: 5px;
            border: none;
            border-radius: 5px;
            background-color: darkblue;
            color: white;
            cursor: pointer;
            font-size: 0.9rem;
        }
         .bookmark-btn:hover, .share-btn:hover {
            background-color: #0056b3;
        }
        /* 
        #darkModeToggle {
            padding: 10px 20px;
            border: none;
            border-radius: 5px;
            background-color: darkblue;
            color: white;
            cursor: pointer;
        }
        #darkModeToggle:hover {
            background-color: #0056b3;
        }*/
        #pagination button {
            padding: 10px;
            margin: 0 5px;
            border: none;
            border-radius: 5px;
            background-color: darkblue;
            color: white;
            cursor: pointer;
        }
        #pagination button:hover {
            background-color: #0056b3;
        } 
 /* Scroll to Top Button */
#scrollTopBtn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: darkblue;
    color: white;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    cursor: pointer;
    transition: opacity 0.3s, transform 0.3s;
    opacity: 0;
    transform: scale(0);
}

#scrollTopBtn:hover {
    background: #0056b3;
}

#scrollTopBtn.show {
    opacity: 1;
    transform: scale(1);
}


        /* footer  styling*/
        footer {
            background: darkblue;
            color: white;
            text-align: center;
            padding: 20px;
            margin-top: 20px;
            position: relative;
        }
        footer a {
            color: white;
            text-decoration: none;
            font-weight: bold;
        }
        footer a:hover {
            text-decoration: underline;
        }
        .social-icons {
            margin: 10px 0;
        }
        .social-icons a {
            margin: 0 10px;
            color: white;
            font-size: 1.2rem;
            text-decoration: none;
        }
        .social-icons a:hover {
            color: lightblue;
        }
        .quotes {
            margin: 10px 0;
            font-style: italic;
        }

        /* dark-mode styles */
        .dark-mode {
            background-color: #121212;
            color: #ffffff;
        }
        .dark-mode .blog-title {
            font-size: 1.5rem;
            font-weight: bold;
            color: #ecf0f1;
        }

        .dark-mode .blog-image {
             width: 100%;
             height: auto;
             border-radius: 5px;
             transition: transform 0.3s ease, box-shadow 0.3s ease;
             overflow: hidden;
        }

        .dark-mode .blog-image:hover {
              transform: scale(1.05);
              box-shadow: 0 8px 12px rgba(255, 255, 255, 0.3);
        }

        .dark-mode .blog-post {
            background-color: #1e1e1e;
            color: #ffffff;
        }

        .dark-mode .blog-content{
            color:#E0E0E0;

        }

        .dark-mode .date{
            color:#ffffff;

        }
       
        /*  Code Container Styling */
        .dark-mode .code-section-title {
            font-family: 'Poppins', sans-serif;
            font-size: 1.5em;
            color: #ecf0f1;
            margin-top: 20px;
            margin-bottom: 10px;
            text-transform: uppercase;
            letter-spacing: 1px;
            border-left: 4px solid #3498db;
            padding-left: 10px;
        }

        .dark-mode pre {
            background-color: #2c3e50;
            border: 1px solid #34495e;
            border-radius: 8px;
            padding: 16px;
            overflow-x: auto;
            margin: 20px 0;
        }

        .dark-mode code {
            font-family: "Courier New", Courier, monospace;
            font-size: 14px;
            line-height: 1.6;
            color: #ecf0f1;
        }

        .dark-mode .code-keyword {
            color: #3498db;
            font-weight: bold;
        }

        .dark-mode .code-string {
            color: #2ecc71;
        }

        .dark-mode .code-comment {
            color: #95a5a6;
            font-style: italic;
        }

        /* dark-mode styles for the footer */
        
        .dark-mode footer {
            background: #2c3e50;
            color: #ecf0f1;
            text-align: center;
            padding: 20px;
            margin-top: 20px;
            position: relative;
        }

        .dark-mode footer a {
            color: #ecf0f1;
            text-decoration: none;
            font-weight: bold;
        }

        .dark-mode footer a:hover {
            text-decoration: underline;
        }

        .dark-mode .social-icons {
            margin: 10px 0;
        }

        .dark-mode .social-icons a {
            margin: 0 10px;
            color: #ecf0f1;
            font-size: 1.2rem;
            text-decoration: none;
        }

        .dark-mode .social-icons a:hover {
            color: #3498db;
        }

        .dark-mode .quotes {
            margin: 10px 0;
            font-style: italic;
            color: #bdc3c7;
        }


       /* mediaqueries for responsive design */
        @media (max-width: 768px) {
            body {
                padding: 10px;
            }
            header h1 {
                font-size: 2rem;
            }
            .blog-post {
                margin: 10px;
                padding: 10px;
            }
        }
        /* category Button */
@media (max-width: 768px) {
    .category-btn {
        width: 45%; 
        font-size: 14px;
        padding: 8px 15px;
    }
}

@media (max-width: 480px) {
    .category-btn {
        width: 100%; 
        font-size: 14px;
        padding: 10px;
    }
}