:root{--bg-primary: #0a0a0f;--bg-secondary: #13141f;--bg-glass: rgba(19, 20, 31, .85);--bg-card: rgba(30, 32, 48, .7);--text-primary: #ffffff;--text-secondary: #a0a3b5;--accent: #6366f1;--accent-glow: rgba(99, 102, 241, .3);--success: #22c55e;--warning: #f59e0b;--danger: #ef4444;--border: rgba(255, 255, 255, .08);--radius: 12px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100dvh;overflow:hidden}.app-container{max-width:480px;margin:0 auto;height:100dvh;display:flex;flex-direction:column;background:var(--bg-secondary)}.header{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid var(--border);flex-shrink:0}.header h1{font-size:18px;font-weight:700;background:linear-gradient(135deg,var(--accent),#a855f7);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.header-actions{display:flex;align-items:center;gap:8px}.user-name{font-size:13px;color:var(--text-secondary)}.scenario-label{font-size:13px;color:var(--text-secondary);padding:4px 10px;background:var(--bg-card);border-radius:20px}.icon-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:6px;border-radius:8px;font-size:13px;display:flex;align-items:center;gap:4px}.icon-btn:hover{color:var(--text-primary);background:var(--bg-card)}.end-btn{background:var(--danger);color:#fff;border:none;padding:6px 14px;border-radius:20px;font-size:13px;cursor:pointer}.end-btn:hover{opacity:.9}.login-screen{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:16px;padding:40px}.app-title{font-size:48px;font-weight:800;background:linear-gradient(135deg,var(--accent),#a855f7);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.app-subtitle{font-size:18px;color:var(--text-primary)}.app-desc{font-size:14px;color:var(--text-secondary);margin-bottom:24px}.login-btn{display:flex;align-items:center;gap:8px;background:var(--accent);color:#fff;border:none;padding:14px 32px;border-radius:30px;font-size:16px;font-weight:600;cursor:pointer;transition:transform .15s,box-shadow .15s}.login-btn:hover{transform:translateY(-2px);box-shadow:0 4px 20px var(--accent-glow)}.scenario-grid{flex:1;padding:24px 16px;overflow-y:auto}.scenario-title{font-size:20px;font-weight:700;margin-bottom:20px;text-align:center}.scenario-cards{display:flex;flex-direction:column;gap:12px}.scenario-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;cursor:pointer;text-align:left;color:var(--text-primary);transition:border-color .2s,transform .15s;display:flex;align-items:center;gap:16px}.scenario-card:hover{border-color:var(--accent);transform:translate(4px)}.scenario-icon{color:var(--accent);flex-shrink:0}.scenario-name{font-size:16px;font-weight:600}.scenario-desc{font-size:13px;color:var(--text-secondary);margin-top:2px}.chat-view{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px}.chat-bubble{max-width:85%;padding:12px 16px;border-radius:var(--radius);line-height:1.5}.chat-bubble.ai{background:var(--bg-card);border:1px solid var(--border);align-self:flex-start}.chat-bubble.user{background:var(--accent);color:#fff;align-self:flex-end}.chat-bubble.interim{opacity:.6}.bubble-label{font-size:11px;font-weight:600;text-transform:uppercase;margin-bottom:4px;opacity:.6}.bubble-text{font-size:15px}.feedback-card{margin-top:8px;padding:10px 14px;background:#f59e0b1f;border:1px solid rgba(245,158,11,.3);border-radius:8px}.feedback-header{display:flex;align-items:center;gap:6px;margin-bottom:6px}.feedback-icon{font-size:16px}.feedback-word{font-weight:700;color:var(--warning);font-size:14px}.feedback-message{font-size:13px;color:var(--text-primary);line-height:1.5;margin-bottom:4px}.feedback-tip{font-size:12px;color:var(--text-secondary);font-style:italic}.chat-controls{padding:16px;display:flex;justify-content:center;flex-shrink:0;border-top:1px solid var(--border)}.mic-button{display:flex;flex-direction:column;align-items:center;gap:6px;background:var(--bg-card);border:2px solid var(--border);color:var(--text-primary);padding:16px 40px;border-radius:30px;cursor:pointer;transition:all .2s;font-size:14px}.mic-button:hover{border-color:var(--accent)}.mic-button.active{background:var(--danger);border-color:var(--danger);animation:pulse 1.5s infinite}.mic-label{font-size:12px;color:var(--text-secondary)}.mic-button.active .mic-label{color:#fffc}@keyframes pulse{0%,to{box-shadow:0 0 #ef444466}50%{box-shadow:0 0 0 12px #ef444400}}.session-summary{padding:16px;background:var(--bg-card);border-top:1px solid var(--border);text-align:center}.session-summary h3{font-size:16px;margin-bottom:8px}.session-summary p{font-size:14px;color:var(--text-secondary)}.issues-summary{margin-top:8px}.issue-badge{display:inline-block;padding:4px 10px;margin:4px;background:#f59e0b26;border-radius:20px;font-size:12px;color:var(--warning)}.stats-view{flex:1;overflow-y:auto;padding:20px 16px}.stats-loading{padding:40px;text-align:center;color:var(--text-secondary)}.stats-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:24px}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;text-align:center}.stat-value{font-size:28px;font-weight:700;color:var(--accent)}.stat-label{font-size:12px;color:var(--text-secondary);margin-top:4px}.stats-section{margin-bottom:24px}.stats-section h3{font-size:16px;font-weight:600;margin-bottom:12px}.issue-cards{display:flex;flex-direction:column;gap:10px}.issue-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px}.issue-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.issue-card-label{font-size:13px;font-weight:600;color:var(--warning)}.issue-card-count{font-size:13px;font-weight:700;color:var(--text-secondary)}.issue-card-bar{height:6px;background:#ffffff0f;border-radius:3px;overflow:hidden;margin-bottom:8px}.issue-bar-fill{height:100%;background:var(--warning);border-radius:3px;transition:width .3s}.issue-card-tip{font-size:12px;color:var(--text-secondary);line-height:1.6;padding:8px 10px;background:#f59e0b0f;border-radius:8px;border-left:3px solid var(--warning)}.session-list{display:flex;flex-direction:column;gap:8px}.session-item{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;background:var(--bg-card);border-radius:8px;font-size:13px}.session-scenario{font-weight:600}.session-meta{color:var(--text-secondary)}.session-date{color:var(--text-secondary);font-size:12px}.period-tabs{display:flex;gap:4px;margin-bottom:20px;background:var(--bg-card);border-radius:10px;padding:4px}.period-tab{flex:1;background:none;border:none;color:var(--text-secondary);padding:8px 0;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;transition:all .2s}.period-tab.active{background:var(--accent);color:#fff}.period-tab:hover:not(.active){color:var(--text-primary)}.daily-chart{display:flex;gap:4px;align-items:flex-end;height:140px;padding:8px 0;overflow-x:auto}.daily-bar-col{display:flex;flex-direction:column;align-items:center;flex:1;min-width:36px}.daily-bar-wrapper{width:20px;height:80px;background:var(--bg-card);border-radius:4px;display:flex;align-items:flex-end;overflow:hidden}.daily-bar-fill{width:100%;background:linear-gradient(180deg,var(--accent),#a855f7);border-radius:4px;transition:height .3s}.daily-bar-label{font-size:10px;color:var(--text-secondary);margin-top:4px}.daily-bar-value{font-size:10px;color:var(--accent);font-weight:600}.hint-btn{background:var(--bg-card);border:2px solid var(--border);color:var(--warning);width:48px;height:48px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;flex-shrink:0}.hint-btn:hover{border-color:var(--warning);background:#f59e0b1a}.hint-btn.loading{opacity:.5;cursor:wait;animation:pulse 1.5s infinite}.chat-controls{gap:12px}.hint-card{margin:0 16px;padding:14px;background:#f59e0b14;border:1px solid rgba(245,158,11,.25);border-radius:var(--radius);flex-shrink:0}.hint-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.hint-title{font-size:14px;font-weight:700;color:var(--warning)}.hint-close{background:none;border:none;color:var(--text-secondary);font-size:20px;cursor:pointer;padding:0 4px;line-height:1}.hint-section-label{font-size:11px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;margin-bottom:6px}.hint-suggestions{margin-bottom:12px}.hint-suggestion{font-size:14px;color:var(--text-primary);padding:6px 10px;background:var(--bg-card);border-radius:8px;margin-bottom:4px;display:flex;justify-content:space-between;align-items:center}.hint-model{border-top:1px solid var(--border);padding-top:10px}.hint-model-header{display:flex;justify-content:space-between;align-items:center}.fav-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:4px;border-radius:4px;display:flex;align-items:center;transition:all .2s;flex-shrink:0}.fav-btn:hover,.fav-btn.saved{color:var(--warning)}.fav-btn.saved svg{fill:var(--warning)}.hint-model-en{font-size:14px;color:var(--text-primary);line-height:1.5;margin-bottom:4px}.hint-model-ja{font-size:12px;color:var(--text-secondary);line-height:1.5}.favorites-view{flex:1;overflow-y:auto;padding:20px 16px}.favorites-title{font-size:20px;font-weight:700;margin-bottom:16px}.favorites-empty{text-align:center;padding:60px 20px;color:var(--text-secondary)}.favorites-empty p{margin-bottom:8px}.favorites-empty-hint{font-size:13px;opacity:.7}.favorites-list{display:flex;flex-direction:column;gap:10px}.favorite-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:14px;display:flex;gap:12px;align-items:flex-start}.favorite-content{flex:1;min-width:0}.favorite-expression{font-size:14px;color:var(--text-primary);line-height:1.5;margin-bottom:4px}.favorite-translation{font-size:12px;color:var(--text-secondary);line-height:1.5;margin-bottom:6px}.favorite-meta{display:flex;gap:8px;align-items:center}.favorite-context{font-size:11px;padding:2px 8px;background:#6366f126;color:var(--accent);border-radius:10px}.favorite-date{font-size:11px;color:var(--text-secondary)}.favorite-delete{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:6px;border-radius:6px;display:flex;align-items:center;flex-shrink:0;transition:all .2s}.favorite-delete:hover{color:var(--danger);background:#ef44441a}