/* VIP Pro Level Base Styles */
            :root {
                --primary: #6366f1;
                --primary-hover: #4f46e5;
                --primary-light: #e0e7ff;
                --primary-ultra-light: #f0f4ff;
                --success: #10b981;
                --success-hover: #059669;
                --success-light: #d1fae5;
                --accent: #f59e0b;
                --accent-light: #fef3c7;
                --bg-primary: #fefefe;
                --bg-secondary: #f8fafc;
                --bg-tertiary: #f1f5f9;
                --card-bg: #ffffff;
                --card-shadow: rgba(15, 23, 42, 0.08);
                --card-shadow-hover: rgba(15, 23, 42, 0.12);
                --border-primary: #e2e8f0;
                --border-secondary: #cbd5e1;
                --border-accent: #6366f1;
                --text-primary: #1e293b;
                --text-secondary: #475569;
                --text-muted: #64748b;
                --text-light: #94a3b8;
                --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
                --gradient-secondary: linear-gradient(135deg, #f0f4ff 0%, #e0e7ff 100%);
                --gradient-accent: linear-gradient(135deg, #fef3c7 0%, #fed7aa 100%);
                --glass-bg: rgba(255, 255, 255, 0.95);
                --glass-border: rgba(255, 255, 255, 0.2);
                --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
                --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
                --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
                --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
            }
            
            * {
                margin: 0;
                padding: 0;
                box-sizing: border-box;
            }
            
            body {
                font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
                background: var(--bg-primary);
                background-image: 
                    radial-gradient(circle at 20% 50%, rgba(120, 119, 198, 0.1) 0%, transparent 50%),
                    radial-gradient(circle at 80% 20%, rgba(255, 206, 84, 0.1) 0%, transparent 50%),
                    radial-gradient(circle at 40% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
                color: var(--text-primary);
                line-height: 1.6;
                overflow-x: hidden;
                min-height: 100vh;
            }
            
            /* Premium Header Styles */
            header {
                background: var(--glass-bg);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border-primary);
                padding: 2rem 0;
                position: relative;
                overflow: hidden;
            }
            
            header::before {
                content: '';
                position: absolute;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;
                background: var(--gradient-secondary);
                opacity: 0.6;
                z-index: -1;
            }
            
            .header-content {
                text-align: center;
                position: relative;
                z-index: 2;
            }
            
            .header-content h2 {
                font-family: 'Orbitron', monospace;
                font-weight: 700;
                font-size: 2.5rem;
                background: var(--gradient-primary);
                -webkit-background-clip: text;
                -webkit-text-fill-color: transparent;
                background-clip: text;
                margin-bottom: 0.5rem;
                letter-spacing: 2px;
                text-shadow: 0 0 30px rgba(99, 102, 241, 0.3);
            }
            
            .header-tagline {
                color: var(--text-secondary);
                font-size: 1.1rem;
                font-weight: 500;
                letter-spacing: 1px;
                text-transform: uppercase;
                opacity: 0.9;
            }
            
            /* Premium Container */
            .container {
                max-width: 1000px;
                margin: 4rem auto;
                padding: 0 2rem;
                position: relative;
                z-index: 1;
            }
            
            /* Premium Main Card */
            .main-card {
                background: var(--card-bg);
                border-radius: 24px;
                padding: 3.5rem;
                box-shadow: var(--shadow-xl);
                border: 1px solid var(--border-primary);
                position: relative;
                overflow: hidden;
                transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            }
            
            .main-card::before {
                content: '';
                position: absolute;
                top: 0;
                left: 0;
                right: 0;
                height: 4px;
                background: var(--gradient-primary);
                z-index: 1;
            }
            
            .main-card:hover {
                transform: translateY(-4px);
                box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
                border-color: var(--primary-light);
            }
            
            .main-card h1 {
                font-size: 2.2rem;
                font-weight: 700;
                color: var(--text-primary);
                text-align: center;
                margin-bottom: 2.5rem;
                position: relative;
                letter-spacing: 0.5px;
            }
            
            .main-card h1::after {
                content: '';
                position: absolute;
                bottom: -12px;
                left: 50%;
                transform: translateX(-50%);
                width: 60px;
                height: 3px;
                background: var(--gradient-primary);
                border-radius: 2px;
            }
            
            /* Premium Editor Styles */
            .editor-container {
                display: flex;
                background: var(--bg-secondary);
                border-radius: 16px;
                border: 2px solid var(--border-primary);
                margin-bottom: 2.5rem;
                height: 380px;
                overflow: hidden;
                position: relative;
                transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            }
            
            .editor-container::before {
                content: '';
                position: absolute;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;
                background: linear-gradient(45deg, transparent 49%, rgba(99, 102, 241, 0.05) 50%, transparent 51%);
                pointer-events: none;
                z-index: 1;
            }
            
            .editor-container:focus-within {
                border-color: var(--primary);
                box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
                background: var(--card-bg);
            }
            
            .line-numbers {
                background: var(--bg-tertiary);
                color: var(--text-muted);
                padding: 16px;
                font-family: 'JetBrains Mono', 'Fira Code', monospace;
                text-align: right;
                overflow-y: hidden;
                border-right: 2px solid var(--border-primary);
                user-select: none;
                font-size: 0.9rem;
                line-height: 1.7;
                min-width: 60px;
                position: relative;
            }
            
            .line-numbers::before {
                content: '';
                position: absolute;
                top: 0;
                right: 0;
                width: 1px;
                height: 100%;
                background: var(--gradient-primary);
                opacity: 0.3;
            }
            
            .line-number {
                padding: 2px 8px;
                transition: all 0.2s ease;
                border-radius: 4px;
                font-weight: 500;
            }
            
            .line-number:hover {
                background: var(--primary-ultra-light);
                color: var(--primary);
            }
            
            #usernames {
                flex: 1;
                background: transparent;
                color: var(--text-primary);
                border: none;
                padding: 16px 20px;
                font-family: 'JetBrains Mono', 'Fira Code', monospace;
                resize: none;
                line-height: 1.7;
                font-size: 0.95rem;
                outline: none;
                tab-size: 4;
                font-weight: 500;
                position: relative;
                z-index: 2;
            }
            
            #usernames::placeholder {
                color: var(--text-light);
                font-style: italic;
            }
            
            #usernames:focus {
                color: var(--text-primary);
            }
            
            /* Premium Button Styles */
            #createBtn {
                background: var(--gradient-primary);
                color: white;
                border: none;
                padding: 18px 36px;
                border-radius: 12px;
                cursor: pointer;
                font-weight: 600;
                width: 100%;
                transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
                position: relative;
                overflow: hidden;
                margin-bottom: 2.5rem;
                font-size: 1.1rem;
                letter-spacing: 1px;
                text-transform: uppercase;
                box-shadow: var(--shadow-lg);
            }
            
            #createBtn::before {
                content: '';
                position: absolute;
                top: 0;
                left: -100%;
                width: 100%;
                height: 100%;
                background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
                transition: left 0.5s ease;
            }
            
            #createBtn:hover {
                transform: translateY(-2px);
                box-shadow: 0 15px 30px rgba(99, 102, 241, 0.3);
            }
            
            #createBtn:hover::before {
                left: 100%;
            }
            
            #createBtn:active {
                transform: translateY(0);
            }
            
            #btnText {
                display: inline-flex;
                align-items: center;
                gap: 8px;
            }
            
            #btnLoader {
                display: none;
                align-items: center;
                justify-content: center;
                position: absolute;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;
                background: var(--primary-hover);
            }
            
            .spinner {
                border: 2px solid rgba(255, 255, 255, 0.3);
                border-radius: 50%;
                border-top: 2px solid white;
                width: 20px;
                height: 20px;
                animation: spin 1s linear infinite;
                margin-right: 12px;
            }
            
            @keyframes spin {
                0% { transform: rotate(0deg); }
                100% { transform: rotate(360deg); }
            }
            
            /* Premium Download Section */
            #downloadLinks {
                background: var(--bg-secondary);
                border-radius: 20px;
                padding: 2.5rem;
                border: 1px solid var(--border-primary);
                position: relative;
                overflow: hidden;
            }
            
            #downloadLinks::before {
                content: '';
                position: absolute;
                top: 0;
                left: 0;
                right: 0;
                height: 2px;
                background: var(--gradient-accent);
                z-index: 1;
            }
            
            #downloadLinks p {
                margin: 0 0 2rem 0;
                color: var(--text-secondary);
                font-size: 1.1rem;
                text-transform: uppercase;
                letter-spacing: 1.5px;
                font-weight: 600;
                text-align: center;
            }
            
            .no-files {
                color: var(--text-muted);
                font-style: italic;
                padding: 40px;
                text-align: center;
                font-size: 1rem;
                background: var(--primary-ultra-light);
                border-radius: 12px;
                border: 2px dashed var(--border-secondary);
            }
            
            /* Premium File Cards */
            .files-grid {
                display: grid;
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
                gap: 1.5rem;
                margin-bottom: 2rem;
            }
            
            .file-card {
                background: var(--card-bg);
                border-radius: 16px;
                padding: 1.8rem;
                border: 2px solid var(--border-primary);
                transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
                display: flex;
                flex-direction: column;
                position: relative;
                overflow: hidden;
            }
            
            .file-card::before {
                content: '';
                position: absolute;
                top: 0;
                left: 0;
                right: 0;
                height: 3px;
                background: var(--gradient-primary);
                transform: scaleX(0);
                transition: transform 0.3s ease;
            }
            
            .file-card:hover {
                transform: translateY(-6px);
                box-shadow: var(--shadow-lg);
                border-color: var(--primary-light);
            }
            
            .file-card:hover::before {
                transform: scaleX(1);
            }
            
            .file-name {
                color: var(--text-primary);
                font-size: 1rem;
                font-weight: 600;
                margin-bottom: 1.5rem;
                word-break: break-all;
                flex-grow: 1;
                display: flex;
                align-items: center;
                gap: 12px;
            }
            
            .file-icon {
                color: var(--primary);
                flex-shrink: 0;
            }
            
            .download-btn {
                display: inline-flex;
                align-items: center;
                justify-content: center;
                gap: 8px;
                background: var(--gradient-primary);
                color: white;
                padding: 12px 20px;
                border-radius: 10px;
                font-size: 0.9rem;
                font-weight: 600;
                text-decoration: none;
                transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
                border: none;
                cursor: pointer;
                text-transform: uppercase;
                letter-spacing: 0.5px;
                position: relative;
                overflow: hidden;
            }
            
            .download-btn::before {
                content: '';
                position: absolute;
                top: 0;
                left: -100%;
                width: 100%;
                height: 100%;
                background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
                transition: left 0.4s ease;
            }
            
            .download-btn:hover {
                transform: translateY(-2px);
                box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
            }
            
            .download-btn:hover::before {
                left: 100%;
            }
            
            /* Premium Download All Button */
            .download-all-btn {
                background: var(--success);
                background-image: linear-gradient(135deg, var(--success) 0%, #059669 100%);
                color: white;
                border: none;
                padding: 18px 36px;
                border-radius: 12px;
                cursor: pointer;
                font-weight: 600;
                width: 100%;
                transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
                font-size: 1.1rem;
                margin-bottom: 2rem;
                display: flex;
                align-items: center;
                justify-content: center;
                gap: 12px;
                text-transform: uppercase;
                letter-spacing: 1px;
                box-shadow: var(--shadow-lg);
                position: relative;
                overflow: hidden;
            }
            
            .download-all-btn::before {
                content: '';
                position: absolute;
                top: 0;
                left: -100%;
                width: 100%;
                height: 100%;
                background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
                transition: left 0.5s ease;
            }
            
            .download-all-btn:hover {
                transform: translateY(-2px);
                box-shadow: 0 15px 30px rgba(16, 185, 129, 0.3);
            }
            
            .download-all-btn:hover::before {
                left: 100%;
            }
            
            /* Premium Particles */
            .particles {
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                z-index: -1;
                overflow: hidden;
            }
            
            .particle {
                position: absolute;
                background: radial-gradient(circle, rgba(99, 102, 241, 0.6) 0%, rgba(139, 92, 246, 0.3) 50%, transparent 100%);
                border-radius: 50%;
                animation: float-up linear infinite;
                filter: blur(1px);
            }
            
            @keyframes float-up {
                0% {
                    transform: translateY(0) rotate(0deg) scale(0);
                    opacity: 0;
                }
                10% {
                    transform: scale(1);
                    opacity: 1;
                }
                90% {
                    opacity: 1;
                }
                100% {
                    transform: translateY(-100vh) rotate(360deg) scale(0);
                    opacity: 0;
                }
            }
            
            /* Premium Footer */
            footer {
                background: var(--glass-bg);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-top: 1px solid var(--border-primary);
                padding: 2.5rem 0;
                text-align: center;
                margin-top: 4rem;
                position: relative;
                overflow: hidden;
            }
            
            footer::before {
                content: '';
                position: absolute;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;
                background: var(--gradient-secondary);
                opacity: 0.4;
                z-index: -1;
            }
            
            .footer-brand {
                font-family: 'Orbitron', monospace;
                font-weight: 700;
                font-size: 1.5rem;
                background: var(--gradient-primary);
                -webkit-background-clip: text;
                -webkit-text-fill-color: transparent;
                background-clip: text;
                margin-bottom: 0.5rem;
                letter-spacing: 1px;
            }
            
            .footer-copyright {
                color: var(--text-secondary);
                font-size: 0.95rem;
                font-weight: 500;
            }
            
            /* Premium Progress Bar */
            .progress-container {
                width: 100%;
                background: var(--bg-tertiary);
                border-radius: 10px;
                margin: 1.5rem 0;
                overflow: hidden;
                display: none;
                border: 1px solid var(--border-primary);
            }
            
            .progress-bar {
                height: 12px;
                background: var(--gradient-primary);
                width: 0%;
                transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                border-radius: 10px;
                position: relative;
                overflow: hidden;
            }
            
            .progress-bar::before {
                content: '';
                position: absolute;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;
                background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
                animation: shimmer 2s infinite;
            }
            
            @keyframes shimmer {
                0% { transform: translateX(-100%); }
                100% { transform: translateX(100%); }
            }
            
            /* Premium Tooltip */
            .tooltip {
                position: relative;
                display: inline-block;
            }
            
            .tooltip .tooltiptext {
                visibility: hidden;
                width: 250px;
                background: var(--card-bg);
                color: var(--text-primary);
                text-align: center;
                border-radius: 12px;
                padding: 12px 16px;
                position: absolute;
                z-index: 1000;
                bottom: 130%;
                left: 50%;
                transform: translateX(-50%);
                opacity: 0;
                transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
                font-size: 0.9rem;
                border: 1px solid var(--border-primary);
                box-shadow: var(--shadow-lg);
                font-weight: 500;
            }
            
            .tooltip .tooltiptext::after {
                content: '';
                position: absolute;
                top: 100%;
                left: 50%;
                margin-left: -5px;
                border-width: 5px;
                border-style: solid;
                border-color: var(--card-bg) transparent transparent transparent;
            }
            
            .tooltip:hover .tooltiptext {
                visibility: visible;
                opacity: 1;
                transform: translateX(-50%) translateY(-5px);
            }
            
            /* Premium Responsive Design */
            @media (max-width: 768px) {
                .container {
                    padding: 0 1.5rem;
                    margin: 2.5rem auto;
                }
                
                .main-card {
                    padding: 2.5rem 2rem;
                }
                
                .main-card h1 {
                    font-size: 1.8rem;
                }
                
                .header-content h2 {
                    font-size: 2rem;
                }
                
                .editor-container {
                    height: 320px;
                }
                
                .files-grid {
                    grid-template-columns: 1fr;
                }
                
                #createBtn, .download-all-btn {
                    padding: 16px 28px;
                    font-size: 1rem;
                }
            }
            
            /* Premium Animations */
            @keyframes fadeIn {
                from {
                    opacity: 0;
                    transform: translateY(30px);
                }
                to {
                    opacity: 1;
                    transform: translateY(0);
                }
            }
            
            @keyframes slideIn {
                from {
                    opacity: 0;
                    transform: translateX(-30px);
                }
                to {
                    opacity: 1;
                    transform: translateX(0);
                }
            }
            
            @keyframes scaleIn {
                from {
                    opacity: 0;
                    transform: scale(0.9);
                }
                to {
                    opacity: 1;
                    transform: scale(1);
                }
            }
            
            /* Apply animations */
            .container {
                animation: fadeIn 0.6s ease-out;
            }
            
            .file-card {
                animation: scaleIn 0.4s ease-out;
            }
            
            .download-btn {
                animation: slideIn 0.5s ease-out;
            }
            
            /* Premium Scrollbar */
            ::-webkit-scrollbar {
                width: 8px;
            }
            
            ::-webkit-scrollbar-track {
                background: var(--bg-tertiary);
                border-radius: 10px;
            }
            
            ::-webkit-scrollbar-thumb {
                background: var(--gradient-primary);
                border-radius: 10px;
                border: 2px solid var(--bg-tertiary);
            }
            
            ::-webkit-scrollbar-thumb:hover {
                background: var(--primary-hover);
            }