:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.5;font-weight:400;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color-scheme:light dark;--bg-gradient-start: #f5f7fa;--bg-gradient-end: #c3cfe2;--text-primary: #333;--text-secondary: #666;--card-bg: #ffffff;--border-color: #e0e0e0;--input-border: #e0e0e0;--input-focus: #1a73e8;--primary-color: #1a73e8;--primary-hover: #1557b0;--warning-bg: #fff3cd;--warning-border: #ffc107;--warning-text: #856404;--success-bg: #f0f9f4;--error-bg: #fef3f3;--success-color: #22c55e;--error-color: #ef4444;--table-border: #f0f0f0;--table-header-bg: #f5f5f5;--gradient-start: #667eea;--gradient-end: #764ba2;--shadow-color: rgba(0, 0, 0, .1)}@media(prefers-color-scheme:dark){:root{--bg-gradient-start: #1a1a2e;--bg-gradient-end: #16213e;--text-primary: #e4e4e7;--text-secondary: #a1a1aa;--card-bg: #27293d;--border-color: 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.3s}.btn-primary:hover:not(:disabled){background-color:var(--primary-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.test-screen{max-width:600px;width:100%;text-align:center}.test-screen h2{color:var(--primary-color);margin-bottom:2rem}.progress-info{margin-bottom:2rem}.progress-text{font-size:1.2rem;margin-bottom:.5rem;color:var(--text-primary);font-weight:500}.progress-bar{width:100%;height:8px;background-color:var(--border-color);border-radius:4px;overflow:hidden}.progress-fill{height:100%;background-color:var(--primary-color);transition:width .3s ease}.listening-indicator{background:linear-gradient(135deg,var(--gradient-start) 0%,var(--gradient-end) 100%);color:#fff;padding:2rem;border-radius:12px;margin-bottom:2rem;position:relative;min-height:160px;display:flex;flex-direction:column;align-items:center;justify-content:center}.pulse{width:60px;height:60px;background-color:#ffffff4d;border-radius:50%;margin:0 auto 1rem;animation:pulse 1.5s ease-in-out 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