body {
            margin: 0;
            padding: 0;
            background-color: #1a1a1a;
            color: #ffffff;
            font-family: 'Segoe UI', system-ui, sans-serif;
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .browser-container {
            width: 90%;
            max-width: 1200px;
            background: #2d2d2d;
            border-radius: 12px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
            overflow: hidden;
        }

        .browser-tab-bar {
            display: flex;
            background: #363636;
            padding: 12px 16px 0;
            gap: 8px;
            border-bottom: 1px solid #404040;
        }

        .browser-tab {
            padding: 12px 24px;
            background: #404040;
            border-radius: 8px 8px 0 0;
            cursor: pointer;
            transition: all 0.2s ease;
            position: relative;
            border: none;
            color: #ffffff;
            font-size: 1rem;
        }

        .browser-tab:hover {
            background: #4d4d4d;
        }

        .browser-tab.active {
            background: #8b1a4a;
            color: #fff;
        }

        .browser-content-container {
            padding: 24px;
            min-height: 400px;
            position: relative;
        }

        .browser-content {
            display: none;
            animation: fadeIn 0.3s ease;
        }

        .browser-content.active {
            display: block;
        }

        .tab-title {
            font-size: 2.5rem;
            font-family: 'Manrope', sans-serif;
            font-weight: 600;
            font-style: normal;
        }

        .ipListTable {
            width: 100%;
            border-collapse: collapse;
        }

        .ipListTable th,
        .ipListTable td {
            padding: 12px;
            text-align: left;
            border-bottom: 1px solid #404040;
        }

        .ipListTable th {
            background: #363636;
        }

        #ipBlockInput,
        #SecretKeyInput {
            width: 100%;
            max-width: 400px;
            padding: 12px;
            background: #404040;
            border: 2px solid #555;
            border-radius: 6px;
            display: block;
            color: #999999;
            font-family: 'Inter', sans-serif;
            font-size: 18px;
            font-weight: 500;
            width: 100%;
            margin: 2rem 0;
        }

        .ipBlockBtn,
        .SecretKeyBtn {
            color: white;
            border: none;
            cursor: pointer;
            transition: background 0.3s ease;
            background-color: #8b1a4a;
            padding: 1rem 2rem;
            border-radius: 0.5rem;
            cursor: pointer;
            font-size: 1rem;
        }

        .ipBlockBtn:hover,
        .SecretKeyBtn:hover {
            background: #ff2167;
        }

        .success-screen {
            opacity: 0;
            visibility: hidden;
            transition: all 0.5s ease;
            background: #363636;
            padding: 20px;
            border-radius: 8px;
            margin-top: 20px;
            text-align: center;
        }

        .success-screen.active {
            opacity: 1;
            visibility: visible;
        }

        .success-icon {
            font-size: 48px;
            color: #4CAF50;
            margin-bottom: 15px;
        }

        .tab-hidden {
            display: none !important;
        }

        .ctb3-w {
            display: flex;
            justify-content: center;
            text-align: justify;
            align-items: center;
        }
        .ctb3-w>p{
            font-size: 1rem;
            font-family: "Inter";
            line-height: 2;
        }

        .alphabet-qr {
            max-width: 300px;
            margin-right: 4rem;
            border-radius: 1rem;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }