:root {
            --primary: #00f0ff; --primary-hover: #00c3ff;
            --bg-dark: #050914; --glass: rgba(16, 25, 43, 0.6);
            --border-glow: rgba(0, 240, 255, 0.3); --text: #ffffff; --text-dim: #94a3b8;
            --success: #10b981; --warning: #f59e0b; --danger: #ef4444;
        }

        * { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Outfit', sans-serif; }
        body { background: var(--bg-dark); color: var(--text); min-height: 100vh; overflow-x: hidden; display: flex; flex-direction: column; }

        /* Animated Background */
        .bg-animated {
            position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; z-index: -1;
            background: radial-gradient(circle at 15% 50%, rgba(0, 240, 255, 0.08), transparent 25%),
                        radial-gradient(circle at 85% 30%, rgba(139, 92, 246, 0.08), transparent 25%);
            animation: bgShift 15s infinite alternate ease-in-out;
        }
        @keyframes bgShift { 0% { transform: scale(1); } 100% { transform: scale(1.1); } }

        /* Main UI Container */
        #mainUI { display: flex; flex-direction: column; flex: 1; }

        /* Navbar */
        nav { padding: 20px 50px; display: flex; justify-content: space-between; align-items: center; background: rgba(5, 9, 20, 0.8); backdrop-filter: blur(15px); border-bottom: 1px solid rgba(255,255,255,0.05); position: sticky; top: 0; z-index: 100; animation: slideDown 0.8s ease; }
        .logo { font-size: 2rem; font-weight: 800; letter-spacing: 2px; text-transform: uppercase; text-shadow: 0 0 20px var(--border-glow); }
        .logo span { color: var(--primary); }

        /* Main Container */
        .container { flex: 1; width: 100%; max-width: 600px; margin: 40px auto; padding: 0 20px; animation: fadeIn 1s ease 0.3s both; display: flex; flex-direction: column; justify-content: center; }
        .glass-card { background: var(--glass); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border: 1px solid rgba(255, 255, 255, 0.08); border-radius: 24px; padding: 40px; box-shadow: 0 20px 40px rgba(0,0,0,0.4), inset 0 0 0 1px var(--border-glow); position: relative; overflow: hidden; }
        .glass-card::before { content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%; background: linear-gradient(45deg, transparent, rgba(255,255,255,0.03), transparent); transform: rotate(45deg); animation: shine 6s infinite; pointer-events: none; }
        
        .header-title { text-align: center; margin-bottom: 10px; font-size: 2.2rem; font-weight: 800; background: linear-gradient(to right, #fff, var(--primary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
        .header-sub { text-align: center; color: var(--text-dim); margin-bottom: 30px; font-size: 0.95rem; }

        /* Upload Area */
        .upload-zone { border: 2px dashed rgba(255,255,255,0.2); border-radius: 16px; padding: 35px 20px; text-align: center; cursor: pointer; transition: 0.3s; background: rgba(0,0,0,0.2); position: relative; margin-bottom: 25px; }
        .upload-zone:hover { border-color: var(--primary); background: rgba(0, 240, 255, 0.05); box-shadow: 0 0 20px var(--border-glow); transform: translateY(-3px); }
        .upload-zone svg { width: 50px; height: 50px; fill: var(--primary); margin-bottom: 15px; animation: bounce 2s infinite; }
        .upload-zone input[type="file"] { position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }
        #fileNameDisplay { display: block; margin-top: 10px; font-weight: 600; color: var(--success); }

        .input-group { position: relative; margin-bottom: 20px; }
        .input-group span { position: absolute; left: 15px; top: 50%; transform: translateY(-50%); color: var(--primary); font-weight: 800; }
        .input-group input { width: 100%; background: rgba(0,0,0,0.3); border: 1px solid rgba(255,255,255,0.1); padding: 16px 20px 16px 65px; border-radius: 12px; color: #fff; font-size: 1rem; transition: 0.3s; outline: none; }
        .input-group input:focus { border-color: var(--primary); box-shadow: 0 0 15px var(--border-glow); background: rgba(0,0,0,0.5); }
        .input-group.no-prefix input { padding-left: 20px; }

        .btn-submit { width: 100%; padding: 18px; background: linear-gradient(45deg, var(--primary), #0077ff); border: none; border-radius: 12px; color: #fff; font-size: 1.1rem; font-weight: 800; text-transform: uppercase; letter-spacing: 1px; cursor: pointer; transition: 0.3s; box-shadow: 0 10px 20px rgba(0, 240, 255, 0.2); position: relative; overflow: hidden; }
        .btn-submit:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 15px 30px rgba(0, 240, 255, 0.4); }
        .btn-submit:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

        /* Success & Action Zone */
        .success-zone { display: none; text-align: center; animation: fadeIn 0.5s ease; }
        .success-icon { width: 70px; fill: var(--success); margin: 0 auto 15px auto; display: block; }
        .action-btns { display: flex; gap: 15px; margin-top: 25px; flex-wrap: wrap; }
        .btn-action { flex: 1; padding: 16px; border-radius: 12px; border: none; font-size: 1.05rem; font-weight: 700; cursor: pointer; transition: 0.3s; color: #fff; min-width: 140px; }
        .btn-copy { background: rgba(0, 240, 255, 0.1); border: 1px solid var(--primary); color: var(--primary); }
        .btn-copy:hover { background: rgba(0, 240, 255, 0.2); transform: translateY(-2px); box-shadow: 0 5px 15px rgba(0,240,255,0.2); }
        .btn-open { background: linear-gradient(45deg, var(--primary), #0077ff); }
        .btn-open:hover { transform: translateY(-2px); box-shadow: 0 10px 20px rgba(0, 240, 255, 0.3); }
        
        .btn-wa { background: #25D366; width: 100%; margin-top: 15px; padding: 16px; border-radius: 12px; border: none; font-weight: 700; font-size: 1rem; cursor: pointer; color: #fff; text-decoration: none; display: flex; justify-content: center; align-items: center; gap: 10px; transition: 0.3s; box-shadow: 0 10px 20px rgba(37, 211, 102, 0.2); }
        .btn-wa:hover { background: #1ebd5a; transform: translateY(-2px); box-shadow: 0 15px 30px rgba(37, 211, 102, 0.3); }
        .btn-wa svg { width: 22px; height: 22px; fill: #fff; }

        /* Watermark (Footer & Viewer) */
        .watermark { text-align: center; padding: 25px 20px; color: var(--text-dim); font-size: 0.9rem; font-weight: 400; letter-spacing: 0.5px; margin-top: auto; }
        .viewer-watermark { text-align: center; padding: 12px; background: var(--bg-dark); color: var(--text-dim); font-size: 0.85rem; width: 100%; border-top: 1px solid rgba(255,255,255,0.05); flex-shrink: 0; }

        /* Custom Toast */
        .toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
        .toast { background: var(--glass); backdrop-filter: blur(10px); border-left: 4px solid var(--primary); padding: 15px 25px; border-radius: 8px; box-shadow: 0 5px 15px rgba(0,0,0,0.5); font-size: 0.95rem; animation: slideInRight 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards; color: #fff; }
        .toast.error { border-color: var(--danger); }
        .toast.success { border-color: var(--success); }
        .toast.warning { border-color: var(--warning); }

        /* Status Screens & Viewer */
        #viewer, #statusScreen { display: none; position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background: var(--bg-dark); z-index: 2000; flex-direction: column; }
        #iframeContainer { flex: 1; width: 100%; position: relative; overflow: hidden; background: #fff; }
        iframe { width: 100%; height: 100%; border: none; position: absolute; top: 0; left: 0; }
        
        .status-msg { display: flex; flex-direction: column; justify-content: center; align-items: center; height: 100%; text-align: center; padding: 20px; }
        .loader { border: 4px solid rgba(255,255,255,0.1); border-left-color: var(--primary); border-radius: 50%; width: 50px; height: 50px; animation: spin 1s linear infinite; margin-bottom: 20px; }
        .status-msg h1 { font-size: 2.5rem; margin-bottom: 10px; text-shadow: 0 0 15px var(--border-glow); }
        .status-msg p { color: var(--text-dim); font-size: 1.1rem; }

        /* Responsive Adjustments For Mobile & PC */
        @media (max-width: 600px) {
            nav { padding: 15px 20px; }
            .logo { font-size: 1.5rem; }
            .container { margin: 20px auto; padding: 0 15px; }
            .glass-card { padding: 30px 20px; border-radius: 20px; }
            .action-btns { flex-direction: column; gap: 12px; margin-top: 20px; }
            .btn-action, .btn-wa { padding: 14px; font-size: 1rem; width: 100%; }
            .header-title { font-size: 1.8rem; }
            .status-msg h1 { font-size: 2rem; }
        }

        /* Animations */
        @keyframes slideDown { from { transform: translateY(-100%); } to { transform: translateY(0); } }
        @keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
        @keyframes shine { 0% { left: -100%; } 20% { left: 200%; } 100% { left: 200%; } }
        @keyframes bounce { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
        @keyframes slideInRight { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
        @keyframes fadeOut { to { opacity: 0; transform: translateX(100%); } }
        @keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }