:root{--primary: #6366f1;--primary-dark: #4f46e5;--secondary: #8b5cf6;--bg-dark: #0f172a;--bg-medium: #1e293b;--bg-light: #334155;--bg-card: #2a2a2a;--bg-hover: #333333;--text: #f1f5f9;--text-dim: #94a3b8;--text-secondary: #b0b0b0;--border: #475569;--success: #10b981;--success-dark: #388e3c;--warning: #f59e0b;--shadow: rgba(0, 0, 0, .3)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#0f172a,#1e293b);color:var(--text);line-height:1.6;min-height:100vh;padding:2rem;padding-bottom:100px}.container{max-width:1200px;margin:0 auto}.app-header{text-align:center;margin-bottom:2rem;padding-bottom:1rem}.app-header 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h4{margin:0;font-size:1rem;color:var(--text)}.waveform-canvas{width:100%;height:120px;border-radius:4px;background:#1a1a2e;display:block;margin-bottom:.5rem}.waveform-info{margin:0;font-size:.85rem;color:var(--text-muted);text-align:center}.btn-small{padding:.4rem .8rem;font-size:.85rem;min-width:auto}.output-stats-large{font-size:1.1rem;font-weight:600;color:var(--success)}.hex-output{width:100%;background:var(--bg-dark);border:2px solid var(--border);border-radius:8px;color:var(--text);font-family:Courier New,monospace;font-size:.85rem;padding:1rem;resize:vertical;line-height:1.5}.output-info{margin-bottom:1rem;padding:.75rem 1rem;background:var(--bg-light);border-radius:6px;border:4px solid var(--primary);font-weight:600;color:var(--text)}@media (max-width: 768px){.settings-grid{grid-template-columns:1fr}.encode-controls{flex-direction:column}.encode-controls .btn{width:100%}}.upload-section{margin-bottom:2rem}.upload-area{position:relative;display:flex;flex-direction:column;align-items:center;gap:.75rem;padding:3rem 2rem;background:var(--bg-dark);border:3px dashed var(--border);border-radius:12px;cursor:pointer;transition:all .3s ease;min-height:200px;justify-content:center}.upload-area:hover{border-color:var(--primary);background:#6366f10d;transform:scale(1.01)}.upload-area.drag-over{background:#6366f126;border-color:var(--primary);border-width:3px;transform:scale(1.02)}.upload-prompt{display:flex;flex-direction:column;align-items:center;gap:.75rem}.upload-prompt .upload-icon{font-size:3rem}.upload-prompt p{margin:0;text-align:center}.upload-info{display:flex;flex-direction:column;align-items:center;gap:.75rem}.upload-info .upload-icon{font-size:3rem;color:var(--success)}.upload-info p{margin:0;text-align:center}.status-section{margin-bottom:2rem}.status-info{padding:1rem;background:var(--bg-light);border-radius:8px;border:4px solid var(--primary)}.status-info p{margin:0;font-size:1rem}.waveform-section{margin-bottom:2rem}.waveform-item{background:var(--bg-card);border-radius:8px;padding:1.5rem;border:2px solid var(--border);margin-bottom:1.5rem}.waveform-item h4{margin:0 0 1rem;font-size:1rem;color:var(--text)}.waveform-item canvas{width:100%;border-radius:4px;background:#1a1a2e;display:block;margin-bottom:.75rem}.compression-info{margin-top:1.5rem;padding:1rem;background:var(--bg-light);border-radius:8px;border:4px solid var(--success)}.compression-info p{margin:.5rem 0}.export-actions{display:flex;gap:1rem;margin-bottom:1.5rem}.code-preview{background:var(--bg-card);border-radius:8px;padding:1.5rem;border:2px solid var(--border)}.code-preview h4{margin:0 0 1rem;font-size:1rem;color:var(--text)}.code-preview .tabs{display:flex;gap:.5rem;margin-bottom:1rem;border-bottom:2px solid var(--border);padding-bottom:.5rem}.code-preview .tab-btn{padding:.5rem 1rem;background:transparent;border:none;border-bottom:2px solid transparent;color:var(--text-dim);cursor:pointer;font-family:inherit;font-size:.95rem;transition:all .2s ease}.code-preview .tab-btn:hover{color:var(--text);border-bottom-color:var(--primary)}.code-preview .tab-btn.active{color:var(--primary);border-bottom-color:var(--primary);font-weight:600}.code-preview pre{background:var(--bg-dark);border:2px solid var(--border);border-radius:8px;padding:1rem;overflow-x:auto;font-family:Courier New,monospace;font-size:.85rem;line-height:1.5;color:var(--text);margin:0}@media (max-width: 768px){.export-actions{flex-direction:column}.export-actions .btn{width:100%}.waveform-item canvas{width:100%;height:auto}}