:root {
            /* Ultra Professional Color System - Same as other site */
            --primary-50: #fef2f2;
            --primary-100: #fee2e2;
            --primary-200: #fecaca;
            --primary-300: #fca5a5;
            --primary-400: #f87171;
            --primary-500: #ef4444;
            --primary-600: #dc2626;
            --primary-700: #b91c1c;
            --primary-800: #991b1b;
            --primary-900: #7f1d1d;
            
            --secondary-50: #fffbeb;
            --secondary-100: #fef3c7;
            --secondary-200: #fde68a;
            --secondary-300: #fcd34d;
            --secondary-400: #fbbf24;
            --secondary-500: #f59e0b;
            --secondary-600: #d97706;
            --secondary-700: #b45309;
            --secondary-800: #92400e;
            --secondary-900: #78350f;
            
            --success-50: #f0fdf4;
            --success-100: #dcfce7;
            --success-200: #bbf7d0;
            --success-300: #86efac;
            --success-400: #4ade80;
            --success-500: #22c55e;
            --success-600: #16a34a;
            --success-700: #15803d;
            --success-800: #166534;
            --success-900: #14532d;
            
            --neutral-50: #f8fafc;
            --neutral-100: #f1f5f9;
            --neutral-200: #e2e8f0;
            --neutral-300: #cbd5e1;
            --neutral-400: #94a3b8;
            --neutral-500: #64748b;
            --neutral-600: #475569;
            --neutral-700: #334155;
            --neutral-800: #1e293b;
            --neutral-900: #0f172a;
            
            /* Gradients */
            --gradient-primary: linear-gradient(135deg, #dc2626 0%, #ef4444 50%, #f59e0b 100%);
            --gradient-secondary: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
            --gradient-success: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
            --gradient-rainbow: linear-gradient(135deg, #dc2626 0%, #ef4444 25%, #f59e0b 50%, #22c55e 75%, #3b82f6 100%);
            --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
            
            /* Shadows */
            --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
            --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
            --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
            --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
            --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
            --shadow-glow: 0 0 20px rgba(220, 38, 38, 0.3);
            
            /* Animations */
            --ease-in-out-quart: cubic-bezier(0.76, 0, 0.24, 1);
            --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
            --ease-in-out-back: cubic-bezier(0.68, -0.55, 0.265, 1.55);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', sans-serif;
            background: var(--neutral-50);
            min-height: 100vh;
            padding: 120px 20px 20px;
            color: var(--neutral-800);
            overflow-x: hidden;
            transition: all 0.3s var(--ease-out-expo);
            position: relative;
        }

        /* Animated Background Particles */
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: 
                radial-gradient(circle at 20% 80%, rgba(220, 38, 38, 0.1) 0%, transparent 60%),
                radial-gradient(circle at 80% 20%, rgba(245, 158, 11, 0.1) 0%, transparent 60%),
                radial-gradient(circle at 40% 40%, rgba(239, 68, 68, 0.05) 0%, transparent 60%);
            animation: backgroundFloat 20s ease-in-out infinite;
            z-index: -10;
            pointer-events: none;
        }

        @keyframes backgroundFloat {
            0%, 100% { transform: scale(1) rotate(0deg); }
            25% { transform: scale(1.1) rotate(90deg); }
            50% { transform: scale(1.05) rotate(180deg); }
            75% { transform: scale(1.15) rotate(270deg); }
        }

        /* ULTRA MODERN NAVBAR */
        .navbar-custom {
            position: fixed;
            top: 1.5rem;
            left: 50%;
            transform: translateX(-50%);
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(25px) saturate(200%);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 60px;
            padding: 0.75rem 1.5rem;
            z-index: 1050;
            transition: all 0.6s var(--ease-out-expo);
            box-shadow: 
                0 8px 32px rgba(0, 0, 0, 0.08),
                0 1px 2px rgba(0, 0, 0, 0.05),
                inset 0 1px 0 rgba(255, 255, 255, 0.5);
            min-width: 600px;
            opacity: 1;
            visibility: visible;
        }

        .navbar-custom.scrolled {
            top: 1rem;
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 
                0 20px 60px rgba(0, 0, 0, 0.15),
                0 8px 25px rgba(0, 0, 0, 0.1),
                inset 0 1px 0 rgba(255, 255, 255, 0.6);
            transform: translateX(-50%) scale(0.98);
            border-color: rgba(255, 255, 255, 0.3);
        }

        .navbar-custom.hidden {
            opacity: 0;
            visibility: hidden;
            transform: translateX(-50%) translateY(-120%);
            pointer-events: none;
        }

        .navbar-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
            width: 100%;
        }

        /* Brand */
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            text-decoration: none;
            transition: all 0.4s var(--ease-out-expo);
            position: relative;
        }

        .brand-container {
            position: relative;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .brand-icon {
            width: 45px;
            height: 45px;
            background: var(--gradient-primary);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 800;
            font-size: 1.2rem;
            transition: all 0.4s var(--ease-in-out-back);
            position: relative;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(220, 38, 38, 0.3);
        }

        .brand-icon::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
            transition: left 0.8s ease;
        }

        .brand-text {
            font-size: 1.4rem;
            font-weight: 700;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.02em;
            position: relative;
        }

        .navbar-brand:hover .brand-icon {
            transform: scale(1.1) rotate(5deg);
            box-shadow: 0 8px 30px rgba(220, 38, 38, 0.5);
        }

        .navbar-brand:hover .brand-icon::before {
            left: 100%;
        }

        /* Navigation Links */
        .navbar-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
            background: rgba(248, 250, 252, 0.6);
            border-radius: 35px;
            padding: 0.4rem;
            border: 1px solid rgba(226, 232, 240, 0.4);
            backdrop-filter: blur(10px);
            position: relative;
            overflow: hidden;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.25rem;
            text-decoration: none;
            color: var(--neutral-600);
            font-weight: 500;
            font-size: 0.875rem;
            border-radius: 25px;
            transition: all 0.4s var(--ease-out-expo);
            position: relative;
            overflow: hidden;
            white-space: nowrap;
        }

        .nav-link::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--gradient-primary);
            border-radius: 25px;
            opacity: 0;
            transform: scale(0.7) rotate(5deg);
            transition: all 0.4s var(--ease-out-expo);
            z-index: -1;
        }

        .nav-link:hover::before,
        .nav-link.active::before {
            opacity: 1;
            transform: scale(1) rotate(0deg);
        }

        .nav-link:hover,
        .nav-link.active {
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(220, 38, 38, 0.3);
        }

        .nav-icon {
            font-size: 1rem;
            transition: all 0.3s var(--ease-out-expo);
        }

        .nav-link:hover .nav-icon {
            transform: scale(1.15) rotate(10deg);
        }

        /* CTA Button */
        .navbar-cta {
            background: var(--gradient-primary);
            color: white;
            text-decoration: none;
            padding: 0.75rem 1.5rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.875rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: all 0.4s var(--ease-out-expo);
            position: relative;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(220, 38, 38, 0.25);
        }

        .navbar-cta::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
            transition: left 0.6s ease;
        }

        .navbar-cta:hover::before {
            left: 100%;
        }

        .navbar-cta:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 12px 35px rgba(220, 38, 38, 0.4);
            color: white;
            text-decoration: none;
        }

        /* Smooth Scroll Animation */
        @keyframes smoothScrollToTop {
            0% { transform: translateY(0); }
            50% { transform: translateY(-10px); }
            100% { transform: translateY(0); }
        }

        .smooth-scroll-animation {
            animation: smoothScrollToTop 0.6s ease-in-out;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 25px;
            padding: 50px;
            box-shadow: 0 30px 80px rgba(0, 0, 0, 0.15);
            backdrop-filter: blur(20px);
            animation: slideInUp 0.8s ease-out;
            position: relative;
            overflow: hidden;
        }

        .container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--gradient-primary);
            background-size: 200% 100%;
            animation: gradientMove 3s ease-in-out infinite;
        }

        @keyframes gradientMove {
            0%, 100% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
        }

        @keyframes slideInUp {
            from {
                opacity: 0;
                transform: translateY(50px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .header {
            text-align: center;
            margin-bottom: 50px;
            animation: fadeInDown 1s ease-out 0.2s both;
            position: relative;
        }

        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .header h1 {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            font-size: 3.2em;
            margin-bottom: 15px;
            font-weight: 800;
            animation: titleGlow 3s ease-in-out infinite alternate;
            position: relative;
        }

        @keyframes titleGlow {
            from {
                filter: drop-shadow(0 0 10px rgba(220, 38, 38, 0.3));
            }
            to {
                filter: drop-shadow(0 0 30px rgba(220, 38, 38, 0.6));
            }
        }

        .header .subtitle {
            color: var(--neutral-600);
            font-size: 1.3em;
            margin-bottom: 10px;
            font-weight: 500;
        }

        .header .version-info {
            background: var(--gradient-success);
            color: white;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9em;
            font-weight: 600;
            display: inline-block;
            margin-top: 10px;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }

        .professional-badge {
            background: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
            color: #333;
            padding: 12px 25px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1.1em;
            margin: 20px auto;
            max-width: 300px;
            text-align: center;
            box-shadow: 0 8px 25px rgba(255, 215, 0, 0.3);
            animation: shimmerGold 2s ease-in-out infinite alternate;
        }

        @keyframes shimmerGold {
            from { transform: scale(1) rotate(-1deg); }
            to { transform: scale(1.02) rotate(1deg); }
        }

        .features-showcase {
            background: var(--primary-50);
            padding: 30px;
            border-radius: 20px;
            margin-bottom: 40px;
            border: 1px solid var(--primary-200);
            animation: fadeInUp 0.8s ease-out 1s both;
            position: relative;
            overflow: hidden;
        }

        .features-showcase::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 100%;
            height: 200%;
            background: linear-gradient(45deg, transparent, rgba(220, 38, 38, 0.08), transparent);
            transform: rotate(45deg);
            animation: featureShine 4s infinite;
        }

        @keyframes featureShine {
            0%, 100% { transform: translateX(-100%) rotate(45deg); }
            50% { transform: translateX(100%) rotate(45deg); }
        }

        .features-showcase h3 {
            color: var(--primary-700);
            margin-bottom: 25px;
            font-size: 1.6em;
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            position: relative;
            z-index: 1;
        }

        .feature-card {
            background: rgba(255, 255, 255, 0.95);
            padding: 25px;
            border-radius: 15px;
            text-align: center;
            transition: all 0.4s ease;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.5);
            height: 180px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            position: relative;
            overflow: hidden;
            animation: floatCard 6s ease-in-out infinite;
        }

        @keyframes floatCard {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-5px); }
        }

        .feature-card:nth-child(odd) {
            animation-delay: 0s;
        }

        .feature-card:nth-child(even) {
            animation-delay: 3s;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(220, 38, 38, 0.1), transparent);
            transition: left 0.5s ease;
        }

        .feature-card:hover::before {
            left: 100%;
        }

        .feature-card:hover {
            transform: translateY(-10px) scale(1.05);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
            background: rgba(255, 255, 255, 1);
        }

        .feature-icon {
            font-size: 2.8em;
            margin-bottom: 15px;
            animation: iconFloat 3s ease-in-out infinite;
            position: relative;
            z-index: 1;
        }

        @keyframes iconFloat {
            0%, 100% { transform: translateY(0px) rotate(0deg); }
            50% { transform: translateY(-8px) rotate(5deg); }
        }

        .feature-card h4 {
            color: #333;
            margin-bottom: 10px;
            font-size: 1.1em;
            font-weight: 700;
            position: relative;
            z-index: 1;
        }

        .feature-card p {
            color: #666;
            font-size: 0.9em;
            line-height: 1.5;
            position: relative;
            z-index: 1;
        }

        .upload-section {
            background: var(--neutral-100);
            border: 3px dashed var(--primary-500);
            border-radius: 20px;
            padding: 50px;
            text-align: center;
            margin-bottom: 40px;
            transition: all 0.4s ease;
            cursor: pointer;
            position: relative;
            overflow: hidden;
            animation: fadeInUp 0.8s ease-out 0.4s both;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .upload-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(45deg, transparent, rgba(220, 38, 38, 0.1), transparent);
            transform: rotate(45deg);
            transition: all 0.6s ease;
            opacity: 0;
        }

        .upload-section:hover::before {
            animation: shimmer 1.5s ease-in-out;
        }

        @keyframes shimmer {
            0% { transform: translateX(-100%) rotate(45deg); opacity: 0; }
            50% { opacity: 1; }
            100% { transform: translateX(100%) rotate(45deg); opacity: 0; }
        }

        .upload-section:hover {
            border-color: var(--primary-700);
            background: var(--primary-50);
            transform: translateY(-5px) scale(1.01);
            box-shadow: 0 20px 50px rgba(220, 38, 38, 0.3);
        }

        .upload-section.dragover {
            border-color: var(--success-500);
            background: var(--success-50);
            transform: scale(1.03);
            animation: dragPulse 0.6s ease-in-out infinite alternate;
        }

        @keyframes dragPulse {
            from { box-shadow: 0 0 30px rgba(34, 197, 94, 0.4); }
            to { box-shadow: 0 0 50px rgba(34, 197, 94, 0.8); }
        }

        .upload-icon {
            font-size: 4em;
            margin-bottom: 20px;
            color: var(--primary-500);
            animation: uploadFloat 4s ease-in-out infinite;
        }

        @keyframes uploadFloat {
            0%, 100% { transform: translateY(0px) rotate(0deg); }
            25% { transform: translateY(-10px) rotate(2deg); }
            75% { transform: translateY(-5px) rotate(-2deg); }
        }

        .upload-text {
            font-size: 1.4em;
            margin-bottom: 15px;
            color: #333;
            font-weight: 600;
        }

        .upload-subtext {
            color: #666;
            font-size: 1em;
            margin-bottom: 20px;
        }

        .upload-formats {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-top: 20px;
        }

        .format-badge {
            background: var(--gradient-primary);
            color: white;
            padding: 8px 15px;
            border-radius: 20px;
            font-size: 0.9em;
            font-weight: 600;
            animation: formatPulse 2s ease-in-out infinite;
        }

        .format-badge:nth-child(1) { animation-delay: 0s; }
        .format-badge:nth-child(2) { animation-delay: 0.3s; }
        .format-badge:nth-child(3) { animation-delay: 0.6s; }

        @keyframes formatPulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.1); }
        }

        .file-input {
            display: none;
        }

        .uploaded-files-section {
            display: none;
            margin-bottom: 40px;
            animation: slideInUp 0.5s ease-out;
        }

        .uploaded-files-section.show {
            display: block;
        }

        .uploaded-files-title {
            color: #333;
            margin-bottom: 25px;
            font-size: 1.5em;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-weight: 700;
        }

        .uploaded-files-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 20px;
            max-height: 350px;
            overflow-y: auto;
            padding: 20px;
            background: var(--neutral-100);
            border-radius: 20px;
            border: 2px solid var(--primary-200);
        }

        .uploaded-file-item {
            background: white;
            border-radius: 15px;
            padding: 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
            animation: fileCardIn 0.5s ease-out;
        }

        @keyframes fileCardIn {
            from {
                opacity: 0;
                transform: scale(0.8) rotate(5deg);
            }
            to {
                opacity: 1;
                transform: scale(1) rotate(0deg);
            }
        }

        .uploaded-file-item:hover {
            transform: translateY(-8px) scale(1.03);
            box-shadow: var(--shadow-xl);
        }

        .file-preview-img {
            width: 100px;
            height: 100px;
            object-fit: cover;
            border-radius: 12px;
            margin-bottom: 15px;
            border: 3px solid #e1e5e9;
            transition: all 0.3s ease;
            background-color: #f8f9fa;
        }

        .file-preview-img:hover {
            border-color: var(--primary-500);
            transform: scale(1.1) rotate(3deg);
        }

        .file-name {
            font-size: 0.9em;
            color: #333;
            margin-bottom: 8px;
            font-weight: 700;
            word-break: break-all;
        }

        .file-size {
            font-size: 0.8em;
            color: #666;
            margin-bottom: 15px;
            background: var(--primary-50);
            padding: 4px 8px;
            border-radius: 10px;
            display: inline-block;
        }

        .file-remove-btn {
            background: var(--gradient-primary);
            color: white;
            border: none;
            border-radius: 50%;
            width: 30px;
            height: 30px;
            cursor: pointer;
            font-size: 14px;
            position: absolute;
            top: 10px;
            right: 10px;
            transition: all 0.3s ease;
            font-weight: bold;
        }

        .file-remove-btn:hover {
            transform: scale(1.3) rotate(90deg);
            box-shadow: 0 8px 20px rgba(220, 38, 38, 0.5);
        }

        .controls-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
            margin-bottom: 40px;
            animation: fadeInUp 0.8s ease-out 0.6s both;
        }

        .control-group {
            background: white;
            padding: 30px;
            border-radius: 20px;
            box-shadow: var(--shadow-lg);
            border: 2px solid var(--primary-100);
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
            animation: breathe 4s ease-in-out infinite;
        }

        @keyframes breathe {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.02); }
        }

        .control-group:nth-child(even) {
            animation-delay: 2s;
        }

        .control-group::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 4px;
            background: var(--gradient-primary);
            transition: all 0.5s ease;
        }

        .control-group:hover::before {
            left: 0;
        }

        .control-group:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-2xl);
            border-color: var(--primary-500);
        }

        .control-group h3 {
            color: #333;
            margin-bottom: 25px;
            font-size: 1.4em;
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 700;
        }

        .preset-buttons {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-bottom: 25px;
        }

        .preset-btn {
            background: var(--gradient-primary);
            color: white;
            border: none;
            padding: 15px;
            border-radius: 12px;
            font-size: 0.95em;
            cursor: pointer;
            transition: all 0.4s ease;
            font-weight: 700;
            position: relative;
            overflow: hidden;
        }

        .preset-btn::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            background: rgba(255, 255, 255, 0.3);
            border-radius: 50%;
            transform: translate(-50%, -50%);
            transition: all 0.5s ease;
        }

        .preset-btn:hover::before {
            width: 400px;
            height: 400px;
        }

        .preset-btn:hover {
            transform: translateY(-4px);
            box-shadow: 0 15px 35px rgba(220, 38, 38, 0.4);
        }

        .preset-btn.active {
            background: var(--gradient-success);
            animation: activeGlow 1.5s ease-in-out infinite alternate;
        }

        @keyframes activeGlow {
            from { box-shadow: 0 8px 25px rgba(34, 197, 94, 0.4); }
            to { box-shadow: 0 15px 40px rgba(34, 197, 94, 0.8); }
        }

        .input-group {
            display: flex;
            gap: 15px;
            margin-bottom: 20px;
        }

        .input-group input,
        .input-group select {
            flex: 1;
            padding: 15px;
            border: 2px solid var(--neutral-200);
            border-radius: 12px;
            font-size: 16px;
            transition: all 0.3s ease;
            background: white;
            font-weight: 500;
        }

        .input-group input:focus,
        .input-group select:focus {
            outline: none;
            border-color: var(--primary-500);
            box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.1);
            transform: scale(1.02);
        }

        .quality-slider {
            width: 100%;
            margin: 15px 0;
            height: 10px;
            border-radius: 5px;
            background: var(--neutral-200);
            outline: none;
            transition: all 0.3s ease;
        }

        .quality-slider::-webkit-slider-thumb {
            appearance: none;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--gradient-primary);
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(220, 38, 38, 0.4);
            transition: all 0.3s ease;
        }

        .quality-slider::-webkit-slider-thumb:hover {
            transform: scale(1.3);
            box-shadow: 0 8px 25px rgba(220, 38, 38, 0.6);
        }

        .quality-value {
            text-align: center;
            font-weight: 700;
            color: var(--primary-500);
            margin-top: 10px;
            font-size: 1.2em;
        }

        .action-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 40px;
            animation: fadeInUp 0.8s ease-out 0.8s both;
        }

        .btn {
            background: var(--gradient-primary);
            color: white;
            padding: 18px 35px;
            border: none;
            border-radius: 15px;
            font-size: 17px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.4s ease;
            display: flex;
            align-items: center;
            gap: 12px;
            position: relative;
            overflow: hidden;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
            transition: all 0.6s ease;
        }

        .btn:hover::before {
            left: 100%;
        }

        .btn:hover {
            transform: translateY(-4px) scale(1.05);
            box-shadow: 0 20px 45px rgba(220, 38, 38, 0.4);
        }

        .btn:active {
            transform: translateY(-2px) scale(1.02);
        }

        .btn:disabled {
            opacity: 0.6;
            cursor: not-allowed;
            transform: none;
        }

        .btn:disabled:hover {
            transform: none;
            box-shadow: none;
        }

        .btn-success {
            background: var(--gradient-success);
        }

        .btn-success:hover {
            box-shadow: 0 20px 45px rgba(34, 197, 94, 0.4);
        }

        .btn-warning {
            background: var(--gradient-secondary);
        }

        .btn-warning:hover {
            box-shadow: 0 20px 45px rgba(245, 158, 11, 0.4);
        }

        .btn-danger {
            background: linear-gradient(45deg, #dc3545, #e83e8c);
        }

        .btn-danger:hover {
            box-shadow: 0 20px 45px rgba(220, 53, 69, 0.4);
        }

        .progress-section {
            margin-bottom: 40px;
            display: none;
            animation: slideInUp 0.5s ease-out;
            background: white;
            padding: 30px;
            border-radius: 20px;
            box-shadow: var(--shadow-lg);
        }

        .progress-section.show {
            display: block;
        }

        .progress-header {
            text-align: center;
            margin-bottom: 25px;
        }

        .progress-title {
            font-size: 1.4em;
            font-weight: 700;
            color: #333;
            margin-bottom: 10px;
        }

        .progress-bar {
            width: 100%;
            height: 30px;
            background: var(--neutral-200);
            border-radius: 15px;
            overflow: hidden;
            margin-bottom: 20px;
            box-shadow: inset 0 3px 8px rgba(0,0,0,0.1);
            position: relative;
        }

        .progress-fill {
            height: 100%;
            background: var(--gradient-success);
            width: 0%;
            transition: width 0.4s ease;
            border-radius: 15px;
            position: relative;
            overflow: hidden;
        }

        .progress-fill::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
            animation: progressShine 2s infinite;
        }

        @keyframes progressShine {
            0% { left: -100%; }
            100% { left: 100%; }
        }

        .progress-text {
            text-align: center;
            font-weight: 600;
            color: #333;
            font-size: 1.1em;
        }

        .loading-spinner {
            border: 5px solid #f3f3f3;
            border-top: 5px solid var(--primary-500);
            border-radius: 50%;
            width: 50px;
            height: 50px;
            animation: spin 1s linear infinite;
            margin: 0 auto 25px;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .stats-section {
            background: var(--neutral-100);
            padding: 30px;
            border-radius: 20px;
            text-align: center;
            margin-bottom: 30px;
            display: none;
            animation: slideInUp 0.5s ease-out;
            border: 2px solid var(--primary-200);
        }

        .stats-section.show {
            display: block;
        }

        .stats-title {
            font-size: 1.6em;
            font-weight: 700;
            color: #333;
            margin-bottom: 25px;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 25px;
        }

        .stat-item {
            background: white;
            padding: 25px;
            border-radius: 15px;
            box-shadow: var(--shadow-lg);
            transition: all 0.4s ease;
            border: 2px solid transparent;
            animation: statFloat 4s ease-in-out infinite;
        }

        @keyframes statFloat {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-3px); }
        }

        .stat-item:nth-child(odd) {
            animation-delay: 0s;
        }

        .stat-item:nth-child(even) {
            animation-delay: 2s;
        }

        .stat-item:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-2xl);
            border-color: var(--primary-500);
        }

        .stat-number {
            font-size: 2.5em;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 10px;
            animation: countUp 1.5s ease-out;
        }

        @keyframes countUp {
            from {
                opacity: 0;
                transform: scale(0.5);
            }
            to {
                opacity: 1;
                transform: scale(1);
            }
        }

        .stat-label {
            color: #666;
            font-size: 1em;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .preview-section {
            display: none;
            margin-bottom: 30px;
            animation: slideInUp 0.5s ease-out;
        }

        .preview-section.show {
            display: block;
        }

        .preview-title {
            font-size: 1.6em;
            font-weight: 700;
            color: #333;
            margin-bottom: 25px;
            text-align: center;
        }

        .preview-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 25px;
            max-height: 700px;
            overflow-y: auto;
            padding: 25px;
            background: var(--neutral-100);
            border-radius: 20px;
            border: 2px solid var(--primary-200);
        }

        .preview-item {
            background: white;
            border-radius: 18px;
            padding: 25px;
            box-shadow: var(--shadow-lg);
            text-align: center;
            transition: all 0.4s ease;
            animation: slideIn 0.6s ease-out;
            border: 2px solid transparent;
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateX(-50px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        .preview-item:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-2xl);
            border-color: var(--primary-500);
        }

        .toast {
            position: fixed;
            top: 30px;
            right: 30px;
            background: var(--success-500);
            color: white;
            padding: 18px 30px;
            border-radius: 12px;
            box-shadow: var(--shadow-xl);
            transform: translateX(500px);
            transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
            z-index: 1000;
            font-weight: 600;
            font-size: 15px;
            max-width: 400px;
        }

        .toast.show {
            transform: translateX(0);
            animation: toastPulse 0.4s ease-out 0.1s;
        }

        @keyframes toastPulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }

        .toast.error {
            background: var(--gradient-primary);
        }

        .toast.info {
            background: linear-gradient(45deg, #17a2b8, #138496);
        }

        .toast.warning {
            background: var(--gradient-secondary);
            color: #333;
        }

        .footer {
            text-align: center;
            margin-top: 50px;
            padding: 30px;
            background: var(--neutral-100);
            border-radius: 20px;
            border: 2px solid var(--primary-200);
            position: relative;
            overflow: hidden;
        }

        .footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--gradient-primary);
            animation: footerShine 3s ease-in-out infinite;
        }

        @keyframes footerShine {
            0%, 100% { transform: translateX(-100%); }
            50% { transform: translateX(100%); }
        }

        .footer-content {
            color: #666;
            font-size: 1em;
            margin-bottom: 15px;
        }

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

        .social-link {
            background: var(--gradient-primary);
            color: white;
            padding: 12px;
            border-radius: 50%;
            text-decoration: none;
            transition: all 0.3s ease;
            font-size: 1.2em;
        }

        .social-link:hover {
            transform: translateY(-3px) scale(1.1) rotate(10deg);
            box-shadow: 0 8px 20px rgba(220, 38, 38, 0.4);
        }

        /* BIONLUK BUTTON */
        .bionluk-cta {
            display: flex;
            justify-content: center;
            margin: 40px 0;
            animation: fadeInUp 1.2s ease-out;
        }

        .bionluk-btn {
            background: var(--gradient-rainbow);
            color: white !important;
            border: none;
            border-radius: 50px;
            padding: 20px 40px;
            font-weight: 700;
            font-size: 1.2rem;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 15px;
            transition: all 0.4s var(--ease-out-expo);
            box-shadow: var(--shadow-2xl);
            position: relative;
            overflow: hidden;
            text-transform: uppercase;
            letter-spacing: 1px;
            animation: bionlukGlow 3s ease-in-out infinite;
        }

        @keyframes bionlukGlow {
            0%, 100% { 
                box-shadow: 
                    0 25px 50px rgba(220, 38, 38, 0.3),
                    0 0 30px rgba(245, 158, 11, 0.2);
            }
            50% { 
                box-shadow: 
                    0 35px 70px rgba(220, 38, 38, 0.5),
                    0 0 50px rgba(245, 158, 11, 0.4);
            }
        }

        .bionluk-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
            transition: left 0.6s ease;
        }

        .bionluk-btn::after {
            content: '';
            position: absolute;
            inset: -3px;
            background: var(--gradient-rainbow);
            border-radius: 53px;
            z-index: -1;
            opacity: 0;
            transition: opacity 0.4s ease;
            animation: borderRotate 4s linear infinite;
        }

        @keyframes borderRotate {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .bionluk-btn:hover::before {
            left: 100%;
        }

        .bionluk-btn:hover::after {
            opacity: 1;
        }

        .bionluk-btn:hover {
            transform: translateY(-5px) scale(1.05);
            box-shadow: 
                0 40px 80px rgba(220, 38, 38, 0.4),
                0 0 60px rgba(245, 158, 11, 0.3);
            color: white !important;
            text-decoration: none;
        }

        .bionluk-btn i {
            font-size: 1.5rem;
            animation: iconSpin 4s ease-in-out infinite;
        }

        @keyframes iconSpin {
            0%, 100% { transform: rotate(0deg) scale(1); }
            25% { transform: rotate(10deg) scale(1.1); }
            50% { transform: rotate(0deg) scale(1); }
            75% { transform: rotate(-10deg) scale(1.1); }
        }

        /* Mobile Responsive */
        @media (max-width: 768px) {
            .navbar-custom {
                min-width: auto;
                width: calc(100% - 2rem);
                padding: 0.6rem 1rem;
                top: 1rem;
            }

            .navbar-container {
                gap: 1rem;
            }

            .brand-text {
                display: none;
            }

            .navbar-nav {
                gap: 0.1rem;
                padding: 0.3rem;
            }

            .nav-link {
                padding: 0.5rem 0.8rem;
                font-size: 0.8rem;
            }

            .nav-text {
                display: none;
            }

            .navbar-cta {
                padding: 0.6rem 1rem;
                font-size: 0.8rem;
            }

            .navbar-cta span {
                display: none;
            }

            body {
                padding: 100px 20px 20px;
            }

            .container {
                padding: 30px;
                margin: 15px;
            }

            .controls-section {
                grid-template-columns: 1fr;
            }

            .action-buttons {
                flex-direction: column;
            }

            .btn {
                width: 100%;
                justify-content: center;
            }

            .preview-grid {
                grid-template-columns: 1fr;
            }

            .uploaded-files-grid {
                grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
            }

            .features-grid {
                grid-template-columns: 1fr;
            }

            .stats-grid {
                grid-template-columns: 1fr;
            }

            .feature-card {
                height: auto;
                min-height: 140px;
            }

            .upload-formats {
                flex-direction: column;
                align-items: center;
            }

            .bionluk-btn {
                padding: 15px 30px;
                font-size: 1rem;
            }
        }

        /* Scrollbar Styling */
        ::-webkit-scrollbar {
            width: 10px;
        }

        ::-webkit-scrollbar-track {
            background: #f1f1f1;
            border-radius: 10px;
        }

        ::-webkit-scrollbar-thumb {
            background: var(--gradient-primary);
            border-radius: 10px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary-700);
        }

        /* Accessibility */
        .btn:focus {
            outline: 3px solid rgba(220, 38, 38, 0.5);
            outline-offset: 3px;
        }

        .preset-btn:focus {
            outline: 2px solid rgba(255, 255, 255, 0.8);
            outline-offset: 2px;
        }

        .file-remove-btn:focus {
            outline: 2px solid #fff;
            outline-offset: 2px;
        }

        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }