/* Desktop Marketing, Navbar, FAQ & Footer (Web Only) */
        /* Desktop Sticky Navbar */
        .desktop-navbar {
            width: 100%;
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(12, 10, 9, 0.85);
            backdrop-filter: blur(20px) saturate(180%);
            -webkit-backdrop-filter: blur(20px) saturate(180%);
            border-bottom: 1px solid var(--border);
            transition: background 0.3s ease, border-color 0.3s ease;
        }
        body.is-native-app .desktop-navbar {
            display: none !important;
        }
        .navbar-inner {
            max-width: 1060px;
            margin: 0 auto;
            padding: 12px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: #ffffff;
            user-select: none;
        }
        .brand-logo-mini {
            width: 34px;
            height: 34px;
            border-radius: 11px;
            background: var(--primary-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 14px rgba(124, 58, 237, 0.4);
            border: 1px solid rgba(255, 255, 255, 0.2);
            flex-shrink: 0;
        }
        .brand-logo-mini svg {
            width: 20px;
            height: 20px;
        }
        .brand-name {
            font-size: 16px;
            font-weight: 800;
            letter-spacing: -0.3px;
            color: #ffffff;
        }
        .brand-badge {
            font-size: 10px;
            font-weight: 800;
            padding: 2px 7px;
            border-radius: 50px;
            background: rgba(139, 92, 246, 0.15);
            color: #c4b5fd;
            border: 1px solid rgba(139, 92, 246, 0.3);
        }
        .navbar-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-link-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 50px;
            font-family: inherit;
            font-size: 12px;
            font-weight: 700;
            text-decoration: none;
            transition: all 0.2s ease;
            user-select: none;
        }
        .btn-nav-github {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border);
            color: #d6d3d1;
        }
        .btn-nav-github:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.2);
            color: #ffffff;
            transform: translateY(-1px);
        }
        .btn-nav-github svg {
            width: 15px;
            height: 15px;
            fill: currentColor;
        }
        .btn-nav-apk {
            background: var(--primary-gradient);
            color: #ffffff;
            box-shadow: 0 4px 15px rgba(124, 58, 237, 0.35);
        }
        .btn-nav-apk:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(124, 58, 237, 0.5);
        }
        .btn-nav-apk svg {
            width: 14px;
            height: 14px;
            fill: currentColor;
        }
        @media (max-width: 600px) {
            .brand-name, .brand-badge {
                display: none;
            }
            .nav-link-btn span {
                display: none;
            }
            .nav-link-btn {
                padding: 6px 10px;
            }
        }


        /* Download APK Button (Visible on Web only, hidden in native app) */
        .btn-download-apk {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 12px;
            background: rgba(139, 92, 246, 0.12);
            border: 1px solid rgba(139, 92, 246, 0.35);
            border-radius: 50px;
            color: #c4b5fd;
            font-family: 'Inter', 'Cairo', sans-serif;
            font-size: 11px;
            font-weight: 700;
            text-decoration: none;
            backdrop-filter: blur(12px);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
            transition: all 0.2s ease;
            user-select: none;
        }
        .btn-download-apk:hover {
            background: rgba(139, 92, 246, 0.22);
            border-color: rgba(139, 92, 246, 0.6);
            color: #ffffff;
            transform: translateY(-1px);
        }
        .btn-download-apk:active {
            transform: scale(0.96);
        }
        .btn-download-apk svg {
            width: 13px;
            height: 13px;
            fill: currentColor;
        }
        body.is-native-app .btn-download-apk {
            display: none !important;
        }


        /* Marketing Sections (Desktop Web) */
        .desktop-marketing {
            width: 100%;
            max-width: 1060px;
            margin-top: 50px;
            display: flex;
            flex-direction: column;
            gap: 60px;
            position: relative;
            z-index: 5;
        }
        .marketing-section {
            position: relative;
            z-index: 5;
        }
        body.is-native-app .desktop-marketing {
            display: none !important;
        }
        .section-header {
            text-align: center;
            margin-bottom: 30px;
        }
        .section-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            background: rgba(139, 92, 246, 0.12);
            color: #a78bfa;
            border: 1px solid rgba(139, 92, 246, 0.3);
            font-size: 11px;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 10px;
        }
        .section-title {
            font-size: 26px;
            font-weight: 900;
            color: #ffffff;
            letter-spacing: -0.4px;
            margin-bottom: 8px;
        }
        .section-subtitle {
            font-size: 14px;
            color: var(--text-sub);
            max-width: 580px;
            margin: 0 auto;
            line-height: 1.5;
        }

        /* Steps Grid */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        @media (max-width: 768px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }
        .step-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-app);
            padding: 28px 22px;
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            position: relative;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .step-card:hover {
            border-color: rgba(139, 92, 246, 0.4);
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
        }
        .step-card-num {
            position: absolute;
            top: 20px;
            right: 22px;
            font-size: 20px;
            font-weight: 900;
            color: rgba(255, 255, 255, 0.12);
            font-family: 'JetBrains Mono', monospace;
        }
        html[lang="ar"] .step-card-num {
            right: auto;
            left: 22px;
        }
        .step-illustration-box {
            width: 60px;
            height: 60px;
            border-radius: 18px;
            background: rgba(139, 92, 246, 0.1);
            border: 1px solid rgba(139, 92, 246, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
        }
        .step-illustration-box svg {
            width: 32px;
            height: 32px;
        }
        .step-card-heading {
            font-size: 16px;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 8px;
        }
        .step-card-text {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* Features Grid */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        @media (max-width: 900px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
        }
        .feat-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 22px 18px;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            transition: all 0.25s;
        }
        .feat-card:hover {
            border-color: rgba(139, 92, 246, 0.35);
            transform: translateY(-2px);
        }
        .feat-icon-badge {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
            transition: all 0.25s ease;
        }
        .feat-icon-badge svg {
            width: 22px;
            height: 22px;
        }
        .feat-badge-star {
            background: rgba(245, 158, 11, 0.12);
            border-color: rgba(245, 158, 11, 0.3);
            fill: #f59e0b;
        }
        .feat-badge-nfc {
            background: rgba(139, 92, 246, 0.12);
            border-color: rgba(139, 92, 246, 0.3);
            fill: #a78bfa;
        }
        .feat-badge-qr {
            background: rgba(56, 189, 248, 0.12);
            border-color: rgba(56, 189, 248, 0.3);
            fill: #38bdf8;
        }
        .feat-badge-shield {
            background: rgba(16, 185, 129, 0.12);
            border-color: rgba(16, 185, 129, 0.3);
            fill: #10b981;
        }
        .feat-card-title {
            font-size: 15px;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 6px;
        }
        .feat-card-text {
            font-size: 12.5px;
            color: var(--text-sub);
            line-height: 1.5;
        }

        /* FAQ Section */
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        @media (max-width: 768px) {
            .faq-grid {
                grid-template-columns: 1fr;
            }
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-app);
            padding: 24px 22px;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            transition: all 0.25s ease;
        }
        .faq-item:hover {
            border-color: rgba(139, 92, 246, 0.4);
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
        }
        .faq-question {
            font-size: 15.5px;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .faq-answer {
            font-size: 13.5px;
            color: var(--text-sub);
            line-height: 1.65;
        }

        /* Footer */
        .app-footer {
            width: 100%;
            margin-top: 20px;
            padding-top: 30px;
            border-top: 1px solid var(--border);
        }
        .footer-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-brand-title {
            font-size: 16px;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 4px;
        }
        .footer-brand-desc {
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-nav-links {
            display: flex;
            align-items: center;
            gap: 18px;
        }
        .footer-nav-links a {
            color: var(--text-sub);
            text-decoration: none;
            font-size: 12.5px;
            font-weight: 600;
            transition: color 0.2s;
        }
        .footer-nav-links a:hover {
            color: #a78bfa;
        }
        .footer-bottom {
            text-align: center;
            font-size: 12px;
            color: var(--text-muted);
            padding-top: 16px;
            border-top: 1px dashed rgba(255, 255, 255, 0.06);
        }
        .footer-bottom a {
            color: var(--text-sub);
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: #a78bfa;
        }

        /* Desktop Layout Overrides */
        @media (min-width: 768px) {
            header h1 {
                font-size: 28px;
            }
            header p {
                font-size: 14.5px;
            }
            .glass-card {
                padding: 26px 22px;
            }
            .search-field-wrapper {
                height: 56px;
            }
            .input-box-wrapper {
                height: 56px;
            }
            .tool-btn {
                height: 56px;
            }
            .btn-convert {
                height: 56px;
                font-size: 16px;
            }
        }

        /* Scroll-driven Reveal Animations for Marketing Cards & Sections */
        .reveal-on-scroll {
            opacity: 0;
            transform: translateY(28px) scale(0.98);
            transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1), 
                        transform 0.65s cubic-bezier(0.16, 1, 0.3, 1),
                        border-color 0.3s ease,
                        box-shadow 0.3s ease;
            will-change: opacity, transform;
        }
        .reveal-on-scroll.is-revealed {
            opacity: 1;
            transform: translateY(0) scale(1);
        }
        .steps-grid .step-card:nth-child(1) { transition-delay: 0.05s; }
        .steps-grid .step-card:nth-child(2) { transition-delay: 0.16s; }
        .steps-grid .step-card:nth-child(3) { transition-delay: 0.27s; }

        .features-grid .feat-card:nth-child(1) { transition-delay: 0.05s; }
        .features-grid .feat-card:nth-child(2) { transition-delay: 0.13s; }
        .features-grid .feat-card:nth-child(3) { transition-delay: 0.21s; }
        .features-grid .feat-card:nth-child(4) { transition-delay: 0.29s; }