:root{--bg-primary: #faf6f0;--bg-secondary: #f0eae0;--bg-chat: #ffffff;--text-primary: #2c2418;--text-secondary: #6b5e4f;--text-muted: #9b8e7f;--border: #d4c5b0;--border-light: #e8dfd2;--accent: #8b6914;--accent-light: #c4a44a;--error: #b33a3a;--font-heading: "Cormorant Garamond", "Georgia", serif;--font-body: "Inter", "system-ui", sans-serif;--radius: 8px;--radius-lg: 12px;--chat-max-width: 860px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{font-family:var(--font-body);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased}#root{height:100%;display:flex;flex-direction:column}button{font-family:var(--font-body);cursor:pointer;border:none;background:none}textarea{font-family:var(--font-body);border:none;background:none;resize:none}.header{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;border-bottom:1px solid var(--border-light);background:var(--bg-secondary)}.header-left{display:flex;align-items:center;gap:8px;text-align:left}.btn-back{width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--text-secondary);transition:background .2s,color .2s;flex-shrink:0}.btn-back:hover{background:var(--border-light);color:var(--text-primary)}.header h1{font-family:var(--font-heading);font-size:2.2rem;font-weight:700;color:var(--text-primary);letter-spacing:.02em}.header p{font-family:var(--font-heading);font-size:1.1rem;color:var(--text-secondary);font-style:italic;margin-top:2px}.header-user{display:flex;align-items:center;gap:10px;flex-shrink:0}.user-avatar{width:32px;height:32px;border-radius:50%}.user-name{font-size:.85rem;color:var(--text-secondary);white-space:nowrap}.btn-signout{font-size:.8rem;color:var(--text-muted);text-decoration:underline;text-underline-offset:2px}.btn-signout:hover{color:var(--text-secondary)}.login-page{display:flex;align-items:center;justify-content:center;height:100%;background:var(--bg-primary)}.login-card{text-align:center;padding:48px 40px;background:var(--bg-chat);border:1px solid var(--border-light);border-radius:var(--radius-lg);max-width:400px;width:100%}.login-title{font-family:var(--font-heading);font-size:2.4rem;font-weight:700;color:var(--text-primary);margin-bottom:8px}.login-subtitle{font-family:var(--font-heading);font-size:1.1rem;color:var(--text-secondary);font-style:italic;margin-bottom:32px}.btn-google{display:inline-flex;align-items:center;gap:10px;padding:12px 24px;background:#fff;border:1px solid #dadce0;border-radius:var(--radius);font-size:.95rem;font-weight:500;color:#3c4043;cursor:pointer;transition:box-shadow .2s,background .2s}.btn-google:hover{background:#f8f9fa;box-shadow:0 1px 3px #0000001f}.participant-picker{padding:16px;max-width:var(--chat-max-width);margin:0 auto;width:100%}.participant-picker h3{font-family:var(--font-heading);font-size:1.2rem;font-weight:600;margin-bottom:12px;color:var(--text-secondary)}.persona-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:10px}.persona-card{display:flex;align-items:flex-start;gap:10px;padding:12px;border:2px solid var(--border-light);border-radius:var(--radius);background:var(--bg-chat);transition:border-color .2s,box-shadow .2s;cursor:pointer;text-align:left;width:100%}.persona-card:hover{border-color:var(--border)}.persona-card.selected{box-shadow:0 0 0 1px var(--border)}.persona-avatar{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-family:var(--font-heading);font-weight:700;font-size:1rem;flex-shrink:0}.persona-info{flex:1;min-width:0}.persona-info .name{font-weight:600;font-size:.9rem;color:var(--text-primary)}.persona-info .style{font-size:.78rem;color:var(--text-muted);line-height:1.4;margin-top:2px}.topic-input{padding:0 16px 16px;max-width:var(--chat-max-width);margin:0 auto;width:100%}.topic-form{display:flex;gap:10px;align-items:flex-end}.topic-form textarea{flex:1;padding:12px 14px;border:2px solid var(--border-light);border-radius:var(--radius);font-size:.95rem;color:var(--text-primary);background:var(--bg-chat);min-height:52px;max-height:120px;transition:border-color .2s;line-height:1.5}.topic-form textarea:focus{outline:none;border-color:var(--accent)}.topic-form textarea::placeholder{color:var(--text-muted);font-style:italic}.btn-primary{padding:12px 24px;background:var(--accent);color:#fff;border-radius:var(--radius);font-weight:600;font-size:.9rem;white-space:nowrap;transition:background .2s,opacity .2s}.btn-primary:hover:not(:disabled){background:var(--accent-light)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.chat-window{flex:1;overflow-y:auto;padding:20px 16px;max-width:var(--chat-max-width);margin:0 auto;width:100%}.chat-empty{display:flex;align-items:center;justify-content:center;height:100%;color:var(--text-muted);font-family:var(--font-heading);font-size:1.2rem;font-style:italic}.message-bubble{display:flex;gap:12px;margin-bottom:20px;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.message-avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-family:var(--font-heading);font-weight:700;font-size:1.1rem;flex-shrink:0;margin-top:2px}.message-body{flex:1;min-width:0}.message-header{display:flex;align-items:baseline;gap:8px;margin-bottom:4px}.message-name{font-weight:600;font-size:.9rem}.message-turn{font-size:.75rem;color:var(--text-muted)}.message-content{background:var(--bg-chat);border:1px solid var(--border-light);border-radius:2px var(--radius-lg) var(--radius-lg) var(--radius-lg);padding:12px 16px;font-size:.92rem;line-height:1.7;color:var(--text-primary);white-space:pre-wrap;word-break:break-word}.message-content.streaming:after{content:"●";animation:blink 1s infinite;margin-left:2px;color:var(--accent)}@keyframes blink{0%,50%{opacity:1}51%,to{opacity:0}}.turn-indicator{max-width:var(--chat-max-width);margin:0 auto;width:100%;padding:0 16px}.turn-indicator-inner{display:flex;align-items:center;gap:12px;padding:10px 16px;background:var(--bg-secondary);border-radius:var(--radius);border:1px solid var(--border-light)}.turn-progress{display:flex;gap:4px}.turn-dot{width:8px;height:8px;border-radius:50%;background:var(--border-light);transition:background .3s}.turn-dot.filled{background:var(--accent)}.turn-dot.active{background:var(--accent);animation:pulse 1.5s infinite}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.4)}}.turn-text{font-size:.85rem;color:var(--text-secondary)}.turn-text strong{color:var(--text-primary)}.status-bar{padding:12px 16px;max-width:var(--chat-max-width);margin:0 auto;width:100%;display:flex;justify-content:center;gap:10px}.btn-secondary{padding:8px 20px;border:2px solid var(--border);border-radius:var(--radius);color:var(--text-secondary);font-weight:500;font-size:.85rem;transition:border-color .2s,color .2s}.btn-secondary:hover{border-color:var(--text-secondary);color:var(--text-primary)}.btn-danger{padding:8px 20px;border:2px solid var(--error);border-radius:var(--radius);color:var(--error);font-weight:500;font-size:.85rem;transition:background .2s}.btn-danger:hover{background:var(--error);color:#fff}.error-message{text-align:center;padding:12px;color:var(--error);font-size:.9rem}.chat-input-bar{padding:12px 16px;max-width:var(--chat-max-width);margin:0 auto;width:100%;display:flex;align-items:center;gap:10px}.btn-continue{padding:8px 20px;border:2px solid var(--accent);border-radius:var(--radius);color:var(--accent);font-weight:600;font-size:.85rem;white-space:nowrap;transition:background .2s,color .2s}.btn-continue:hover{background:var(--accent);color:#fff}.chat-input-form{flex:1;display:flex;align-items:center;gap:0;background:var(--bg-chat);border:2px solid var(--border-light);border-radius:var(--radius);padding:2px 2px 2px 12px;transition:border-color .2s}.chat-input-form:focus-within{border-color:var(--accent)}.chat-input{flex:1;border:none;background:transparent;font-size:.9rem;color:var(--text-primary);outline:none;padding:8px 0}.chat-input::placeholder{color:var(--text-muted);font-style:italic}.btn-send{width:32px;height:32px;border-radius:6px;display:flex;align-items:center;justify-content:center;color:#fff;background:var(--accent);transition:opacity .2s;flex-shrink:0}.btn-send:disabled{opacity:.35;cursor:not-allowed}.btn-send:hover:not(:disabled){opacity:.85}.btn-danger.btn-sm{padding:6px 14px;font-size:.8rem}.message-bubble.user-message .message-content{background:var(--bg-secondary);border-color:var(--border);font-style:italic}.symposia-section{padding:16px;max-width:var(--chat-max-width);margin:0 auto;width:100%}.symposia-heading{font-family:var(--font-heading);font-size:1.3rem;font-weight:600;color:var(--text-secondary);margin-bottom:12px}.symposia-tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}.symposium-tile{display:flex;flex-direction:column;gap:10px;padding:16px;border:1px solid var(--border-light);border-radius:var(--radius-lg);background:var(--bg-chat);text-align:left;width:100%;transition:border-color .2s,box-shadow .2s}.symposium-tile:hover{border-color:var(--accent);box-shadow:0 2px 8px #0000000f}.tile-topic{font-family:var(--font-heading);font-size:1.05rem;font-weight:600;color:var(--text-primary);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.tile-meta{display:flex;align-items:center;justify-content:space-between}.tile-participants{display:flex;gap:4px}.tile-avatar{width:24px;height:24px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:#fff;font-family:var(--font-heading);font-weight:700;font-size:.7rem}.tile-date{font-size:.75rem;color:var(--text-muted)}.symposium-layout{display:flex;height:100%;overflow:hidden}.symposium-main{flex:1;display:flex;flex-direction:column;min-width:0;overflow:hidden}.sidebar{background:var(--bg-secondary);border-right:1px solid var(--border-light);display:flex;flex-direction:column;transition:width .2s ease;overflow:hidden;flex-shrink:0}.sidebar.open{width:280px}.sidebar.collapsed{width:44px}.sidebar-header{display:flex;align-items:center;gap:8px;padding:12px;border-bottom:1px solid var(--border-light);min-height:52px}.sidebar-toggle{width:28px;height:28px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:var(--text-secondary);transition:background .2s;flex-shrink:0}.sidebar-toggle:hover{background:var(--border-light)}.sidebar-title{font-family:var(--font-heading);font-size:1.1rem;font-weight:600;color:var(--text-primary);flex:1;white-space:nowrap}.btn-new{width:28px;height:28px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:600;color:var(--accent);transition:background .2s}.btn-new:hover{background:var(--border-light)}.sidebar-list{flex:1;overflow-y:auto;padding:8px}.sidebar-item{display:flex;flex-direction:column;gap:2px;width:100%;padding:10px 12px;border-radius:var(--radius);text-align:left;transition:background .15s;margin-bottom:2px}.sidebar-item:hover{background:var(--border-light)}.sidebar-item.active{background:var(--bg-chat);box-shadow:0 1px 3px #00000014}.sidebar-item-topic{font-size:.85rem;font-weight:500;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-item-date{font-size:.72rem;color:var(--text-muted)}.sidebar-empty{padding:16px 12px;font-size:.85rem;color:var(--text-muted);font-style:italic}