body {

            margin: 0;
            font-family: system-ui, Arial, sans-serif;
            background: #0b1220;
            color: #e5e7eb;

        }

        .page {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 60px;
            padding: 40px 16px 60px;
        }

        .card-wrapper {
            width: 100%;
            display: flex;
            justify-content: center;
        }

        .card {
            background: #111827;
            border: 1px solid #1f2937;
            border-radius: 16px;
            padding: 28px;
            width: 100%;
            max-width: 520px;
            text-align: center;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
        }

        .title {
            font-size: 18px;
            color: #9ca3af;
            margin-bottom: 12px;
        }

        .ip {
            font-size: 40px;
            font-weight: 700;
            color: #60a5fa;
            word-break: break-word;
            margin-bottom: 20px;
        }

        .sub {
            font-size: 13px;
            color: #6b7280;
            margin-bottom: 24px;
        }

        button {
            background: #2563eb;
            color: white;
            border: none;
            padding: 10px 16px;
            border-radius: 10px;
            cursor: pointer;
            font-size: 14px;
            transition: 0.2s;
        }

        button:hover {
            background: #1d4ed8;
        }

        button:active {
            transform: scale(0.98);
        }

        .copied {
            margin-top: 10px;
            font-size: 12px;
            color: #34d399;
            display: none;
        }

        .footer {
            margin-top: 18px;
            font-size: 12px;
            color: #6b7280;
        }

        a {
            color: #60a5fa;
            text-decoration: none;
        }

        a:hover {
            text-decoration: underline;
        }


        .seo {
            width: 100%;
            max-width: 520px;
            text-align: left;
            line-height: 1.6;
            color: #cbd5e1;
        }

        .seo h2 {
            font-size: 16px;
            margin-bottom: 10px;
            color: #e5e7eb;
        }

        .seo ul {
            padding-left: 18px;
            margin-bottom: 12px;
        }

        .seo li {
            margin-bottom: 6px;
        }

        .seo p {
            margin-top: 10px;
            font-size: 14px;
            color: #9ca3af;
        }

        /* NAVIGATION */

        .navbar {
            position: sticky;
            top: 0;
            z-index: 1000;

            background: rgba(11, 18, 32, 0.9);
            backdrop-filter: blur(8px);

            border-bottom: 1px solid #1f2937;
        }

        .nav-container {
            max-width: 1100px;
            margin: 0 auto;

            display: flex;
            justify-content: space-between;
            align-items: center;

            padding: 14px 20px;
        }

        .brand {
            font-size: 18px;
            font-weight: 700;
            color: #e5e7eb;
            text-decoration: none;
        }

        .nav-links {
            display: flex;
            gap: 20px;
        }

        .nav-links a {
            color: #9ca3af;
            text-decoration: none;
            font-size: 14px;
        }

        .nav-links a:hover {
            color: #60a5fa;
        }

        .nav-links a.active {
            color: #60a5fa;
        }

        .faq {
            max-width: 720px;
            width: 100%;
            color: #cbd5e1;
        }

        .faq h2 {
            color: #e5e7eb;
            margin-bottom: 12px;
        }

        details {
            background: #111827;
            border: 1px solid #1f2937;
            padding: 12px 14px;
            border-radius: 10px;
            margin-bottom: 10px;
        }

        summary {
            cursor: pointer;
            font-weight: 500;
            color: #e5e7eb;
        }

        details p {
            margin-top: 8px;
            font-size: 14px;
            color: #9ca3af;
        }

        /* privacy */
        .content {
            max-width: 720px;
            width: 100%;
            text-align: left;
            line-height: 1.6;
        }

        .content h1 {
            margin-bottom: 20px;
        }

        .content h2 {
            margin-top: 24px;
            font-size: 18px;
        }

        .content ul {
            padding-left: 20px;
            color: #cbd5e1;
        }

        .updated {
            margin-top: 40px;
            font-size: 12px;
            color: #6b7280;
        }

        /* qr code */
        .tool-card {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 24px;

            background: #111827;
            border: 1px solid #1f2937;
            border-radius: 16px;
            padding: 24px;
        }

        @media (max-width: 768px) {
            .tool-card {
                grid-template-columns: 1fr;
            }
        }

        .preview {
            display: flex;
            justify-content: center;
            align-items: center;

            background: #0b1220;
            border-radius: 12px;
            min-height: 320px;
        }

        input {
            width: 80%;
            padding: 14px;

            background: #0b1220;
            border: 1px solid #1f2937;

            border-radius: 10px;
            color: white;
            font-size: 16px;
        }

        .actions {
            margin-top: 20px;
            display: flex;
            gap: 10px;
            justify-content: center;
        }

        button:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* Password Generator */
        .password-box {
            font-size: 18px;
            padding: 14px;
            background: #0b1220;
            border: 1px solid #1f2937;
            border-radius: 10px;
            word-break: break-all;
            margin-bottom: 16px;
        }

        .row {
            margin: 12px 0;
            text-align: left;
        }

        label {
            display: flex;
            justify-content: space-between;
            font-size: 14px;
            color: #cbd5e1;
        }

        input[type="range"] {
            width: 100%;
        }

        button {
            background: #2563eb;
            color: white;
            border: none;
            padding: 10px 14px;
            border-radius: 10px;
            cursor: pointer;
            margin: 6px;
        }

        button:hover {
            background: #1d4ed8;
        }

        .actions {
            margin-top: 16px;
        }

        .copied {
            font-size: 12px;
            color: #34d399;
            display: none;
            margin-top: 8px;
        }

        footer {
            margin-top: 20px;
            font-size: 12px;
            color: #6b7280;
        }

        a {
            color: #60a5fa;
            text-decoration: none;
        }