:root {
            --primary-color: #6a0dad;
            --secondary-color: #8a2be2;
            --dark-bg: #121212;
            --card-bg: #1e1e1e;
            --text-color: #e0e0e0;
            --heading-color: #ffffff;
            --border-color: rgba(255, 255, 255, 0.1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: var(--dark-bg);
            color: var(--text-color);
            overflow-x: hidden;
            line-height: 1.6;
        }

        /* Navbar */
        .navbar {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(18, 18, 18, 0.8);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            padding: 0 20px;
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }
        
        .logo-container img {
            width: 180px;
             filter: brightness(1.5);
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 30px;
        }

        .nav-menu a {
            color: var(--text-color);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            position: relative;
            padding: 5px 0;
        }
        
        .nav-menu a.active,
        .nav-menu a:hover {
            color: var(--primary-color);
        }

        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-color);
            transition: width 0.3s ease;
        }
        
        .nav-menu a.active::after,
        .nav-menu a:hover::after {
            width: 100%;
        }

        .nav-buttons, .auth-user-info {
            display: flex;
            gap: 15px;
            align-items: center;
        }

        .btn {
            padding: 10px 20px;
            border: none;
            border-radius: 25px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

        .btn-login, .btn-logout {
            background: transparent;
            color: var(--heading-color);
            border: 2px solid var(--primary-color);
        }

        .btn-login:hover, .btn-logout:hover {
            background: var(--primary-color);
            transform: translateY(-2px);
        }

        .btn-signup {
            background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
            color: white;
            border: 2px solid transparent;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(106, 13, 173, 0.3);
        }

        .hamburger {
            display: none;
            cursor: pointer;
        }

        .hamburger .bar {
            display: block;
            width: 25px;
            height: 3px;
            margin: 5px auto;
            -webkit-transition: all 0.3s ease-in-out;
            transition: all 0.3s ease-in-out;
            background-color: white;
        }
        
        .hidden {
            display: none !important;
        }
        
        #username-display {
            font-weight: bold;
        }

        /* General Section Styling */
        section {
            padding: 100px 20px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .section-title {
            font-size: 3rem;
            margin-bottom: 20px;
            background: linear-gradient(45deg, var(--heading-color), var(--primary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .section-subtitle {
            font-size: 1.2rem;
            color: var(--text-color);
            max-width: 800px;
            margin-bottom: 60px;
        }
        
        /* Hero Section */
        #home {
            background: linear-gradient(rgba(18, 18, 18, 0.7), rgba(18, 18, 18, 0.9)), url('https://www.transparenttextures.com/patterns/cubes.png');
        }
        
        .hero-content h1 {
            font-size: 4rem;
            font-weight: 800;
            margin-bottom: 20px;
            background: linear-gradient(45deg, var(--heading-color), var(--secondary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
        }

        .hero-content p {
            font-size: 1.3rem;
            margin-bottom: 40px;
            max-width: 800px;
        }

        .hero-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
        }
        
        .btn-primary {
            padding: 15px 40px;
            font-size: 1.1rem;
            background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
            color: white;
            border-radius: 30px;
        }

        .btn-secondary {
             padding: 15px 40px;
            font-size: 1.1rem;
            background: transparent;
            border: 2px solid var(--primary-color);
            color: white;
            border-radius: 30px;
        }

        /* Features Section */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 40px;
            width: 100%;
            max-width: 1200px;
        }

        .feature-card {
            background: var(--card-bg);
            padding: 40px 30px;
            border-radius: 20px;
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }

        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
            border-color: var(--primary-color);
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
            border-radius: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 24px;
        }

        .feature-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: var(--heading-color);
        }

        /* Projects Section */
        .projects-grid {
             display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
            width: 100%;
            max-width: 1200px;
        }

        .project-card {
            background: var(--card-bg);
            border-radius: 15px;
            overflow: hidden;
            text-align: left;
            border: 1px solid var(--border-color);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .project-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.3);
        }

        .project-image {
            width: 100%;
            height: 200px;
            background-color: #333;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: #555;
            background: linear-gradient(45deg, #2a2a2a, #3a3a3a);
        }
        .project-content {
            padding: 25px;
        }
        .project-title {
            font-size: 1.5rem;
            color: var(--heading-color);
            margin-bottom: 10px;
        }
        .project-description {
            margin-bottom: 15px;
        }
        .project-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 20px;
        }
        .tag {
            background: rgba(106, 13, 173, 0.2);
            color: var(--primary-color);
            padding: 5px 10px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .project-links a {
            color: var(--primary-color);
            text-decoration: none;
            margin-right: 15px;
            font-weight: bold;
        }
        .project-links a:hover {
            text-decoration: underline;
        }

        /* Community Section */
        .community-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            width: 100%;
            max-width: 1200px;
        }
        .testimonial-card, .contributor-card {
            background: var(--card-bg);
            padding: 30px;
            border-radius: 15px;
            border: 1px solid var(--border-color);
        }
        .testimonial-author {
            display: flex;
            align-items: center;
            margin-top: 20px;
        }
        .author-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary-color);
            margin-right: 15px;
        }
        .author-info h4 {
            color: var(--heading-color);
        }
        
        /* Docs Section */
        #docs {
            flex-direction: row;
            align-items: flex-start;
            max-width: 1200px;
            margin: 0 auto;
            width: 100%;
        }
        .docs-sidebar {
            width: 250px;
            padding-right: 30px;
            border-right: 1px solid var(--border-color);
        }
        .docs-sidebar ul {
            list-style: none;
            position: sticky;
            top: 100px;
        }
        .docs-sidebar li a {
            display: block;
            padding: 10px;
            color: var(--text-color);
            text-decoration: none;
            border-radius: 5px;
            transition: background-color 0.3s ease;
        }
        .docs-sidebar li a:hover, .docs-sidebar li a.active-doc {
            background-color: var(--card-bg);
            color: var(--primary-color);
        }
        .docs-content {
            flex: 1;
            padding-left: 40px;
            text-align: left;
        }
        .doc-page {
            display: none;
        }
        .doc-page.active {
            display: block;
        }
        .docs-content h2 {
             font-size: 2.5rem;
             color: var(--heading-color);
             margin-bottom: 20px;
             padding-bottom: 10px;
             border-bottom: 1px solid var(--border-color);
        }
        .docs-content h3 {
             font-size: 1.8rem;
             color: var(--heading-color);
             margin-top: 30px;
             margin-bottom: 15px;
        }
        .docs-content code {
            background: var(--card-bg);
            padding: 2px 6px;
            border-radius: 4px;
            font-family: 'Courier New', Courier, monospace;
            color: var(--primary-color);
        }
        .docs-content pre {
            background: var(--card-bg);
            padding: 20px;
            border-radius: 8px;
            overflow-x: auto;
            margin: 20px 0;
            border: 1px solid var(--border-color);
        }
        .docs-content pre code {
            color: var(--text-color);
        }

        /* Modal (Login/Signup) */
        .modal {
            position: fixed;
            z-index: 2000;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0,0,0,0.7);
            display: none;
            justify-content: center;
            align-items: center;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .modal.show {
            display: flex;
            opacity: 1;
        }

        .modal-content {
            background: var(--card-bg);
            padding: 40px;
            border-radius: 15px;
            width: 90%;
            max-width: 450px;
            position: relative;
            transform: scale(0.9);
            transition: transform 0.3s ease;
        }
        .modal.show .modal-content {
            transform: scale(1);
        }

        .close-btn {
            position: absolute;
            top: 15px;
            right: 20px;
            font-size: 2rem;
            color: #aaa;
            cursor: pointer;
        }
        .close-btn:hover {
            color: white;
        }

        .modal-title {
            text-align: center;
            font-size: 2rem;
            margin-bottom: 30px;
            color: var(--heading-color);
        }

        .form-group {
            margin-bottom: 20px;
        }
        
        .form-error {
            color: #e57373;
            font-size: 0.9rem;
            margin-top: 10px;
            text-align: center;
            display: none;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: var(--text-color);
        }

        .form-group input {
            width: 100%;
            padding: 12px;
            background: var(--dark-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            color: white;
            font-size: 1rem;
        }
        .form-group input:focus {
            outline: none;
            border-color: var(--primary-color);
        }

        .modal-btn {
            width: 100%;
            padding: 15px;
            font-size: 1.1rem;
        }
        
        /* Footer */
        .footer {
            background: #0a0a0a;
            padding: 50px 20px;
            text-align: center;
            border-top: 1px solid var(--border-color);
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
        }
        .footer .logo-container img {
            margin-bottom: 20px;
            width: 200px;
        }
        .footer p {
            margin-bottom: 20px;
        }
        .social-links a {
            color: white;
            margin: 0 15px;
            font-size: 1.5rem;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .social-links a:hover {
            color: var(--primary-color);
        }

        /* Responsive Design */
        @media (max-width: 992px) {
            .nav-menu {
                position: absolute;
                left: -100%;
                top: 70px;
                flex-direction: column;
                background-color: rgba(18, 18, 18, 0.95);
                width: 100%;
                text-align: center;
                transition: 0.3s;
                gap: 0;
            }

            .nav-menu.active {
                left: 0;
            }
            
            .nav-menu li {
                width: 100%;
            }

            .nav-menu a {
                padding: 1rem 0;
                display: block;
                border-bottom: 1px solid var(--border-color);
            }
            
             .nav-menu a::after {
                display: none;
            }

            .hamburger {
                display: block;
            }

            .hamburger.active .bar:nth-child(2) {
                opacity: 0;
            }

            .hamburger.active .bar:nth-child(1) {
                transform: translateY(8px) rotate(45deg);
            }

            .hamburger.active .bar:nth-child(3) {
                transform: translateY(-8px) rotate(-45deg);
            }
            
            .hero-content h1 {
                font-size: 3rem;
            }
            
            #docs {
                flex-direction: column;
            }
            .docs-sidebar {
                width: 100%;
                border-right: none;
                border-bottom: 1px solid var(--border-color);
                padding-right: 0;
                margin-bottom: 30px;
            }
            .docs-sidebar ul {
                position: static;
                display: flex;
                flex-wrap: wrap;
                justify-content: center;
            }
            .docs-content {
                padding-left: 0;
            }
        }
        
         @media (max-width: 768px) {
             .hero-content h1 {
                font-size: 2.5rem;
            }
            .hero-content p {
                font-size: 1.1rem;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            .section-title {
                font-size: 2.5rem;
            }
         }