:root{--primary: #58CC02;--primary-dark: #46A302;--secondary: #1CB0F6;--secondary-dark: #1899D6;--accent: #FF9600;--accent-dark: #D47D00;--success: #58CC02;--error: #FF4B4B;--error-dark: #EA2B2B;--text-primary: #3C3C3C;--text-secondary: #777777;--text-muted: #AFAFAF;--bg: #FFFFFF;--bg-secondary: #F7F7F7;--surface: #FFFFFF;--surface-border: #E5E5E5;--radius-lg: 20px;--radius-md: 16px;--radius-sm: 12px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-secondary);color:var(--text-primary);min-height:100vh;line-height:1.5;-webkit-font-smoothing:antialiased}#app{display:flex;flex-direction:column;min-height:100vh;max-width:600px;margin:0 auto;padding:0 20px}.header{display:flex;align-items:center;justify-content:space-between;padding:24px 0}.logo{font-size:1.5rem;font-weight:800;color:var(--primary);letter-spacing:-.5px}.main{flex:1;overflow-y:visible;padding-bottom:140px}.section{margin-bottom:16px}.section-title{font-size:.75rem;font-weight:800;text-transform:uppercase;letter-spacing:.8px;color:var(--text-muted);margin-bottom:8px;padding-left:4px}.collapsible{background:var(--surface);border:2px solid var(--surface-border);border-bottom-width:4px;border-radius:var(--radius-lg);overflow:hidden;transition:transform .1s cubic-bezier(.4,0,.2,1)}.section-header{width:100%;display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:transparent;border:none;cursor:pointer;text-align:left}.section-header-label{font-weight:700;color:var(--text-muted);font-size:1.1rem}.section-selected{font-weight:700;color:var(--primary);font-size:1.1rem}.section-content{max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease}.collapsible.expanded .section-content{max-height:500px;padding:4px 16px 20px}.chips{display:flex;flex-wrap:wrap;gap:12px}.chip{padding:12px 20px;background:var(--surface);border:2px solid var(--surface-border);border-bottom-width:4px;border-radius:var(--radius-md);font-size:1rem;font-weight:700;color:var(--text-secondary);cursor:pointer;transition:all .1s ease;flex:1 1 auto;text-align:center;min-width:100px}.chip:hover{background:var(--bg-secondary);transform:translateY(-1px)}.chip:active{transform:translateY(2px);border-bottom-width:2px}.chip.selected{background:var(--secondary);border-color:var(--secondary-dark);color:#fff}.phrase-card{background:var(--surface);border:2px solid var(--surface-border);border-bottom-width:4px;border-radius:var(--radius-lg);padding:24px;margin-top:24px;text-align:center}.phrase-text{font-size:1.1rem;color:var(--text-secondary);margin-bottom:12px;font-weight:500}.phrase-response{font-size:1.5rem;font-weight:800;color:var(--primary);line-height:1.3}.phrase-details{background:transparent;padding:0 12px;margin-top:20px;text-align:left}.phrase-label{font-size:.75rem;font-weight:800;letter-spacing:.8px;color:var(--text-muted);text-transform:uppercase;margin-bottom:6px}.phrase-cultural{background:#fff9e6;border:2px solid #FFE4A3;border-radius:var(--radius-md);padding:16px;margin-top:16px;display:flex;gap:12px;align-items:flex-start}.phrase-cultural-icon{font-size:1.25rem}.phrase-cultural-text{font-size:.95rem;color:#a36a00;font-weight:500;line-height:1.4}.prosody-container{margin-top:24px;padding:0 12px;position:relative}.prosody-legend-overlay{position:absolute;top:-10px;right:0;background:#ffffffe6;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);padding:6px 12px;border-radius:20px;font-size:.75rem;font-weight:700;color:var(--text-muted);display:flex;gap:12px;box-shadow:0 2px 8px #0000000d;z-index:10}.legend-item{display:flex;align-items:center;gap:6px}.legend-dot{width:8px;height:8px;border-radius:50%}.legend-dot.ghost{background:#a5a6f6}.legend-dot.user{background:var(--primary)}#prosody-canvas{display:block;width:100%;height:140px;border-radius:var(--radius-lg)}.controls{position:fixed;bottom:0;left:0;right:0;display:flex;flex-direction:column;align-items:center;padding:0 20px 12px;background:#fff;border-top:2px solid var(--surface-border);z-index:50}.status{font-size:.75rem;font-weight:600;color:var(--text-muted);margin-top:8px;min-height:16px;text-align:center}.collapsible .section-chevron{transition:transform .3s ease}.collapsible.expanded .section-chevron{transform:rotate(180deg)}.mic-button{width:80px;height:80px;border-radius:50%;border:none;background:var(--primary);border-bottom:6px solid var(--primary-dark);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 15px #58cc024d;transition:all .1s ease;margin-top:-40px}.mic-button:active{transform:translateY(6px);border-bottom-width:0;box-shadow:none}.mic-button.active{background:var(--error);border-bottom-color:var(--error-dark);box-shadow:0 4px 15px #ff4b4b4d}.mic-icon,.stop-icon{width:40px;height:40px}.hidden{display:none!important}.loading{padding:40px;text-align:center}.spinner{width:40px;height:40px;border:5px solid var(--surface-border);border-top-color:var(--primary);border-radius:50%;margin:0 auto 16px;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}