:root {
            --c-bg: #f5f5f7;
            --c-surface: #ffffff;
            --c-text: #1d1d1f;
            --c-muted: #86868b;
            --c-border: rgba(0, 0, 0, 0.08);
            
            --c-accent: #000000;
            --c-accent-hover: #333333;
            
            --c-success: #34c759;
            --c-error: #ff3b30;
            
            --radius-lg: 24px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.08);
        }

        /* Automatischer Dark Mode */
        @media (prefers-color-scheme: dark) {
            :root {
                --c-bg: #000000;
                --c-surface: #1c1c1e;
                --c-text: #f5f5f7;
                --c-muted: #86868b;
                --c-border: rgba(255, 255, 255, 0.1);
                
                --c-accent: #ffffff;
                --c-accent-hover: #e5e5ea;
                
                --c-success: #32d74b;
                --c-error: #ff453a;
                
                --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
                --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.6);
            }
        }

        /* Reset & Base */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            background: var(--c-bg);
            color: var(--c-text);
            line-height: 1.5;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }
        
        /* Typography */
        h1 {
            font-size: 3.5rem;
            font-weight: 700;
            letter-spacing: -0.04em;
            margin-bottom: 0.5rem;
            line-height: 1.1;
        }
        
        h2 {
            font-size: 1.25rem;
            font-weight: 600;
            letter-spacing: -0.02em;
            margin-bottom: 0.5rem;
        }
        
        p {
            color: var(--c-muted);
            font-size: 0.95rem;
        }

        main {
            max-width: 1000px;
            margin: 0 auto;
            padding: 4rem 2rem;
        }

        /* Header */
        .header {
            text-align: center;
            margin-bottom: 4rem;
        }
        
        .header-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--c-surface);
            border: 1px solid var(--c-border);
            padding: 0.5rem 1.25rem;
            border-radius: 99px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
            box-shadow: var(--shadow);
            color: var(--c-text);
        }

        /* Bento Grid */
        .bento-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
            margin-bottom: 2rem;
        }
        
        .bento-card {
            background: var(--c-surface);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            box-shadow: var(--shadow);
            border: 1px solid var(--c-border);
            display: flex;
            flex-direction: column;
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease;
        }
        
        .bento-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        
        .bento-card--large {
            grid-column: span 2;
        }
        
        @media (max-width: 768px) {
            .bento-card--large {
                grid-column: span 1;
            }
            h1 {
                font-size: 2.5rem;
            }
            .top-bar {
                position: relative;
                top: 0;
                right: 0;
                justify-content: center;
                margin-bottom: 2rem;
            }
        }

        .card-icon {
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
        }

        /* Upload Zone */
        .upload-zone {
            border: 2px dashed var(--c-border);
            border-radius: var(--radius-md);
            padding: 2rem;
            text-align: center;
            cursor: pointer;
            transition: all 0.2s ease;
            margin-top: 1.5rem;
            background: var(--c-bg);
        }
        
        .upload-zone:hover, .upload-zone:focus-within {
            border-color: var(--c-muted);
            background: var(--c-surface);
            outline: none;
        }
        
        .upload-zone:focus-visible {
            border: 2px solid var(--c-accent);
        }

        .upload-zone.dragover {
            border-color: var(--c-accent);
            background: var(--c-surface);
            transform: scale(1.02);
            border-style: solid;
        }
        
        .upload-zone input {
            display: none;
        }
        
        .upload-zone strong {
            color: var(--c-text);
            display: block;
            margin-bottom: 0.25rem;
            font-weight: 500;
            font-size: 1rem;
        }
        
        .upload-zone span {
            font-size: 0.85rem;
            color: var(--c-muted);
        }

        /* Lists */
        .file-list {
            margin-top: 1rem;
            max-height: 140px;
            overflow-y: auto;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        
        .file-list--empty {
            display: none;
        }
        
        .file-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0.75rem 1rem;
            background: var(--c-bg);
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            border: 1px solid var(--c-border);
        }
        
        .file-item__name {
            flex: 1;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            margin-right: 1rem;
            color: var(--c-text);
            font-weight: 500;
        }
        
        .file-item__size {
            color: var(--c-muted);
            font-variant-numeric: tabular-nums;
        }

        /* Buttons & Actions */
        .actions {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 1rem;
            margin-top: auto;
            padding-top: 2rem;
        }
        
        @media (max-width: 600px) {
            .actions {
                grid-template-columns: 1fr;
            }
        }
        
        .btn {
            width: 100%;
            padding: 1rem 1.5rem;
            border-radius: 99px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            border: none;
            font-family: inherit;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            text-decoration: none;
        }
        
        .btn-primary {
            background: var(--c-accent);
            color: var(--c-bg);
        }
        
        .btn-primary:hover:not(:disabled) {
            background: var(--c-accent-hover);
            transform: scale(1.02);
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
        }
        
        .btn-primary:active:not(:disabled) {
            transform: scale(0.98);
        }
        
        .btn-primary:disabled {
            opacity: 0.3;
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }
        
        .btn-secondary {
            background: transparent;
            color: var(--c-text);
            border: 1px solid var(--c-border);
        }
        
        .btn-secondary:hover {
            background: var(--c-border);
        }

        /* Status & Progress */
        .progress-section {
            display: none;
            margin: 1.5rem 0;
            background: var(--c-bg);
            padding: 1.5rem;
            border-radius: var(--radius-md);
            border: 1px solid var(--c-border);
        }
        
        .progress-section--visible {
            display: block;
        }
        
        .progress-bar {
            height: 8px;
            background: var(--c-border);
            border-radius: 99px;
            overflow: hidden;
            margin-bottom: 0.75rem;
        }
        
        .progress-bar__fill {
            height: 100%;
            background: var(--c-accent);
            width: 0%;
            transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .progress-text {
            font-size: 0.85rem;
            color: var(--c-text);
            text-align: right;
            font-weight: 600;
            font-variant-numeric: tabular-nums;
        }

        .status-box {
            display: none;
            margin-top: 1.5rem;
            padding: 1rem;
            background: var(--c-bg);
            border-radius: var(--radius-sm);
            font-size: 0.8rem;
            max-height: 200px;
            overflow-y: auto;
            border: 1px solid var(--c-border);
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
            line-height: 1.6;
        }
        
        .status-box--visible {
            display: block;
        }
        
        .status-item {
            padding: 0.25rem 0;
            color: var(--c-text);
        }
        
        .status-item--ok {
            color: var(--c-success);
        }
        
        .status-item--error {
            color: var(--c-error);
        }

        /* Top Bar */
        .top-bar {
            position: absolute;
            top: 2rem;
            right: 2rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            z-index: 10;
        }

        .lang-switcher {
            display: flex;
            gap: 0.5rem;
        }
        
        .github-btn {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--c-surface);
            border: 1px solid var(--c-border);
            color: var(--c-text);
            padding: 0.5rem 0.75rem;
            border-radius: var(--radius-sm);
            text-decoration: none;
            font-size: 0.85rem;
            font-weight: 600;
            transition: all 0.2s ease;
        }

        .github-btn:hover {
            background: var(--c-accent);
            color: var(--c-bg);
            border-color: var(--c-accent);
        }
        
        .lang-btn {
            background: var(--c-surface);
            border: 1px solid var(--c-border);
            color: var(--c-text);
            padding: 0.5rem 0.75rem;
            border-radius: var(--radius-sm);
            cursor: pointer;
            font-size: 0.85rem;
            font-weight: 600;
            transition: all 0.2s ease;
        }
        
        .lang-btn:hover {
            background: var(--c-accent);
            color: var(--c-bg);
            border-color: var(--c-accent);
        }
        
        .lang-btn.active {
            background: var(--c-accent);
            color: var(--c-bg);
            border-color: var(--c-accent);
        }

        /* Custom Scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: transparent; 
        }
        ::-webkit-scrollbar-thumb {
            background: var(--c-border); 
            border-radius: 8px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--c-muted); 
        }

        /* Processing Banner */
        .processing-banner {
            background: var(--c-success);
            color: white;
            padding: 0.75rem 1.25rem;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 1rem;
        }

        .processing-banner[hidden] {
            display: none !important;
        }

        .processing-dot {
            width: 10px;
            height: 10px;
            background: white;
            border-radius: 50%;
            flex-shrink: 0;
            animation: blink 1.5s ease-in-out infinite;
        }

        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        .progress-bar__fill--processing {
            animation: pulse 2s ease-in-out infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.7; }
        }

/* Extracted Inline Styles */
.compat-warning-box {
    background: rgba(14, 11, 11, 0.1);
    border-left: 4px solid var(--c-error);
    border-radius: var(--radius-sm);
    padding: 1.25rem;
    margin-bottom: 2rem;
    color: var(--c-text);
}

.compat-warning-title {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.compat-warning-list {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.bento-card-title {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.bento-card-text {
    margin: 0;
    font-size: 0.95rem;
    opacity: 0.9;
    line-height: 1.5;
}

.bento-card-list {
    margin: 0.8rem 0 0 0;
    padding-left: 1.2rem;
    font-size: 0.95rem;
    opacity: 0.9;
    line-height: 1.5;
}

.bento-card-list-item {
    margin-bottom: 0.4rem;
}

.bento-card--info {
    background: var(--c-surface);
    border: 1px dashed var(--c-accent);
}

.card-icon--info {
    color: var(--c-accent);
}

.info-title {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.info-text {
    margin: 0;
    font-size: 0.95rem;
    opacity: 0.9;
}

.elapsed-time {
    margin-left: auto;
    font-variant-numeric: tabular-nums;
}

.footer-main {
    text-align: center;
    margin-top: 3rem;
    padding: 2rem 1rem;
    color: var(--c-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--c-surface);
}

.footer-text-secondary {
    margin-top: 1rem;
    opacity: 0.8;
}

.footer-disclaimer {
    margin-top: 1rem;
    opacity: 0.7;
    font-size: 0.8rem;
}

.footer-links {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.footer-link {
    color: var(--c-muted);
    text-decoration: underline;
}

.text-error {
    color: var(--c-error);
}

.text-success {
    color: var(--c-success);
}

.compat-warning-item {
    margin: 0;
    color: var(--c-text);
}