:root {
            --primary: #6D28D9;
            --primary-light: #8B5CF6;
            --secondary: #1E293B;
            --background: #0F172A;
            --card-bg: #1E293B;
            --text: #E2E8F0;
            --text-muted: #94A3B8;
            --accent: #F59E0B;
            --success: #10B981;
            --border-radius: 8px;
            --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }

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

        body {
            font-family: 'Inter', system-ui, -apple-system, sans-serif;
            background-color: var(--background);
            color: var(--text);
            line-height: 1.6;
            min-height: 100vh;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .header {
            background: linear-gradient(135deg, var(--primary), #4C1D95);
            color: var(--text);
            padding: 2rem 0;
            text-align: center;
            border-bottom: 4px solid var(--accent);
        }

        .logo-container {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1rem;
            margin-bottom: 1rem;
        }

        .kali-logo {
            width: 48px;
            height: 48px;
            background-color: var(--primary);
            border-radius: 50%;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 2px solid var(--accent);
        }

        .kali-eye {
            width: 16px;
            height: 16px;
            background-color: var(--accent);
            border-radius: 50%;
            position: absolute;
        }

        .kali-qr-squares {
            position: absolute;
            width: 24px;
            height: 24px;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            grid-template-rows: repeat(2, 1fr);
            gap: 2px;
        }

        .qr-square {
            background-color: var(--accent);
            border-radius: 2px;
        }

        .qr-square:nth-child(1) { opacity: 1; }
        .qr-square:nth-child(2) { opacity: 0.75; }
        .qr-square:nth-child(3) { opacity: 0.5; }
        .qr-square:nth-child(4) { opacity: 0.25; }

        .header h1 {
            font-size: 2.5rem;
            margin-bottom: 0;
            font-weight: 700;
            letter-spacing: -0.5px;
            background: linear-gradient(to right, var(--text), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .header p {
            font-size: 1.1rem;
            color: var(--text-muted);
        }

        .navbar {
            background-color: var(--card-bg);
            box-shadow: var(--box-shadow);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .navbar ul {
            display: flex;
            list-style: none;
        }

        .navbar li {
            flex: 1;
            text-align: center;
        }

        .navbar a {
            display: block;
            padding: 1rem;
            text-decoration: none;
            color: var(--text-muted);
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .navbar a:hover {
            color: var(--primary-light);
        }

        .navbar a.active {
            color: var(--primary-light);
            border-bottom: 3px solid var(--primary-light);
        }

        .generator-section {
            display: none;
            padding: 2rem 0;
        }

        .generator-section.active {
            display: block;
        }

        .generator-section h2 {
            margin-bottom: 1.5rem;
            color: var(--primary-light);
        }

        .generator-card {
            background-color: var(--card-bg);
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 2rem;
            margin-bottom: 2rem;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .input-group {
            margin-bottom: 1.5rem;
        }

        .input-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
            color: var(--text);
        }

        .input-group input[type="text"],
        .input-group textarea {
            width: 100%;
            padding: 0.75rem;
            background-color: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            color: var(--text);
            transition: all 0.3s ease;
        }

        .input-group textarea {
            min-height: 100px;
            resize: vertical;
        }

        .input-group input[type="text"]:focus,
        .input-group textarea:focus {
            outline: none;
            border-color: var(--primary-light);
            box-shadow: 0 0 0 2px rgba(109, 40, 217, 0.2);
        }

        .options-group {
            display: flex;
            gap: 1.5rem;
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
        }

        .option {
            flex: 1;
            min-width: 150px;
        }

        .option label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
            color: var(--text);
        }

        .option select {
            width: 100%;
            padding: 0.75rem;
            background-color: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            color: var(--text);
        }

        .option input[type="color"] {
            width: 100%;
            height: 40px;
            padding: 0;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--border-radius);
            cursor: pointer;
            background: transparent;
        }

        .btn-primary {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: var(--border-radius);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            width: 100%;
        }

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

        .result {
            margin-top: 2rem;
            text-align: center;
            padding: 1.5rem;
            background-color: rgba(0, 0, 0, 0.2);
            border-radius: var(--border-radius);
            display: none;
            border: 1px dashed var(--primary);
        }

        #qr-code-result, #wifi-qr-result {
            margin: 0 auto;
            max-width: 300px;
        }

        #barcode-result {
            margin: 0 auto;
            max-width: 100%;
            height: auto;
        }

        .download-options {
            display: flex;
            gap: 1rem;
            justify-content: center;
            margin-top: 1.5rem;
            flex-wrap: wrap;
        }

        .btn-secondary {
            background-color: rgba(255, 255, 255, 0.05);
            color: var(--primary-light);
            border: 1px solid var(--primary);
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            font-size: 0.9rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-secondary:hover {
            background-color: var(--primary);
            color: white;
        }

        .footer {
            background-color: var(--secondary);
            color: var(--text-muted);
            text-align: center;
            padding: 1.5rem 0;
            margin-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-branding {
            margin-bottom: 1rem;
        }

        .kali-signature {
            color: var(--accent);
            font-weight: 600;
            display: block;
            margin-bottom: 0.25rem;
        }

        .kali-tagline {
            font-size: 0.9rem;
            opacity: 0.8;
        }

        .footer p {
            margin-bottom: 0.5rem;
            font-size: 0.9rem;
        }

        @media (max-width: 768px) {
            .options-group {
                flex-direction: column;
                gap: 1rem;
            }
            
            .option {
                min-width: 100%;
            }
            
            .header h1 {
                font-size: 2rem;
            }
            
            .header p {
                font-size: 1rem;
            }
        }