.file-input-container { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
            .file-input-container input[type="file"] { padding: 10px; border-radius: 8px; border: 1px solid #cbd5e1; font-size: 0.9rem; background: #fff; cursor: pointer; }
            
            .stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 20px; }
            .stat-card { background: #f8fafc; border: 1px solid #cbd5e1; padding: 12px; border-radius: 8px; display: flex; flex-direction: column; gap: 4px; }
            .stat-label { font-size: 0.75rem; text-transform: uppercase; font-weight: 700; color: #64748b; letter-spacing: 0.05em; }
            .stat-value { font-size: 1rem; font-weight: 600; color: #1e293b; font-family: monospace; word-break: break-all; }

            .meter-container { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; background: #f8fafc; padding: 15px; border-radius: 8px; border: 1px solid #cbd5e1; }
            .meter-label { font-size: 0.85rem; font-weight: 600; color: #334155; display: flex; justify-content: space-between; }
            .meter-bar-bg { width: 100%; height: 20px; background: #e2e8f0; border-radius: 4px; overflow: hidden; position: relative; }
            .meter-bar-fill { height: 100%; width: 0%; background: #10b981; transition: width 0.1s ease; }

            .buttons-flex { display: flex; gap: 10px; margin-bottom: 20px; }

            .info-box { background: #fefce8; border: 1px solid #fef08a; padding: 12px; border-radius: 8px; font-size: 0.85rem; color: #854d0e; margin-bottom: 20px; display: none; }
            .info-box strong { font-weight: 600; }

            .log-container { background: #0f172a; color: #38bdf8; padding: 15px; border-radius: 8px; font-family: monospace; font-size: 0.85rem; max-height: 200px; overflow-y: auto; margin-bottom: 20px; white-space: pre-wrap; word-break: break-all; }
            .log-success { color: #4ade80; }
            .log-error { color: #f87171; }
            .log-warning { color: #facc15; }

            .btn { flex: 1; padding: 12px; border: none; border-radius: 8px; font-size: 0.95rem; font-weight: 600; cursor: pointer; transition: background-color 0.2s; text-align: center; display: flex; align-items: center; justify-content: center; gap: 6px; text-decoration: none; }
            .btn-primary { background-color: var(--primary); color: white; }
            .btn-primary:hover { background-color: var(--primary-hover); }
            .btn-secondary { background-color: #e5e7eb; color: #374151; }
            .btn-secondary:hover { background-color: #d1d5db; }
            .btn:disabled { background-color: #cbd5e1; cursor: not-allowed; }