:root{--primary: #3B5BDB;--primary-light: #DCE7FF;--bg: #ffffff;--surface: #f8f9fa;--text: #111827;--muted: #6b7280;--border: #e5e7eb;--bubble-me: #DCE7FF;--bubble-other: #f0f0f0;--radius: 12px;--danger: #dc2626}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg: #0f172a;--surface: #1e293b;--text: #f1f5f9;--muted: #94a3b8;--border: #334155;--bubble-me: #1e3a5f;--bubble-other: #1e293b}}:root[data-theme=dark]{--bg: #0f172a;--surface: #1e293b;--text: #f1f5f9;--muted: #94a3b8;--border: #334155;--bubble-me: #1e3a5f;--bubble-other: #1e293b}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{font-family:-apple-system,BlinkMacSystemFont,Noto Sans KR,Segoe UI,sans-serif;font-size:16px;line-height:1.5;color:var(--text);background:var(--bg);-webkit-text-size-adjust:100%;overscroll-behavior:none}.app{display:flex;flex-direction:column;height:100dvh;max-width:600px;margin:0 auto;overflow:hidden}.nav{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--border);background:var(--bg);flex-shrink:0}.nav-title{flex:1;font-size:18px;font-weight:700}.nav-btn{background:none;border:none;cursor:pointer;color:var(--primary);font-size:15px;padding:4px 8px;border-radius:6px}.nav-btn:hover{background:var(--surface)}.scroll-area{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch}button.room-item{font:inherit;background:none;border:none;border-bottom:1px solid var(--border);border-radius:0;text-align:left;width:100%;-webkit-tap-highlight-color:transparent}.room-item{display:flex;align-items:center;padding:12px 16px;border-bottom:1px solid var(--border);cursor:pointer;gap:12px;text-decoration:none;color:inherit}.room-item:active{background:var(--surface)}.room-info{flex:1;min-width:0}.room-name{font-weight:600;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.room-last{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.room-meta{display:flex;flex-direction:column;align-items:flex-end;gap:4px;flex-shrink:0}.room-time{font-size:11px;color:var(--muted)}.unread-badge{background:var(--primary);color:#fff;border-radius:10px;font-size:11px;font-weight:700;padding:1px 6px;min-width:18px;text-align:center}.avatar{width:44px;height:44px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px;flex-shrink:0}.avatar img{width:100%;height:100%;border-radius:50%;object-fit:cover}.message-list{flex:1;overflow-y:auto;padding:8px 0;-webkit-overflow-scrolling:touch}.msg-row{display:flex;padding:2px 16px}.msg-row.me{justify-content:flex-end}.msg-row.other{justify-content:flex-start}.msg-sender-name{font-size:11px;color:var(--muted);margin-bottom:2px;margin-left:2px}.msg-bubble{max-width:75%;padding:8px 12px;border-radius:var(--radius);font-size:15px;line-height:1.5;word-break:break-word;white-space:pre-wrap}.msg-row.me .msg-bubble{background:var(--bubble-me);border-bottom-right-radius:4px}.msg-row.other .msg-bubble{background:var(--bubble-other);border-bottom-left-radius:4px}.msg-bubble.sending{opacity:.6}.msg-bubble.failed{border:1px solid var(--danger)}.msg-time{font-size:10px;color:var(--muted);align-self:flex-end;margin:0 4px;flex-shrink:0}.date-divider{text-align:center;color:var(--muted);font-size:12px;padding:8px 0}.composer{display:flex;align-items:flex-end;gap:8px;padding:8px 12px calc(8px + env(safe-area-inset-bottom));border-top:1px solid var(--border);background:var(--bg);flex-shrink:0}.composer-input{flex:1;resize:none;border:1px solid var(--border);border-radius:20px;padding:8px 14px;font-size:15px;font-family:inherit;background:var(--bg);color:var(--text);max-height:120px;overflow-y:auto;line-height:1.4}.composer-input:focus{outline:none;border-color:var(--primary)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:8px 16px;border:none;border-radius:20px;cursor:pointer;font-size:14px;font-weight:600;font-family:inherit;transition:opacity .1s;white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-secondary{background:var(--border);color:var(--text)}.btn-danger{background:var(--danger);color:#fff}.btn-icon{background:none;border:none;cursor:pointer;color:var(--primary);padding:8px;border-radius:50%;font-size:20px;line-height:1}.sona-panel{position:absolute;bottom:0;left:0;right:0;background:var(--bg);border-top:2px solid var(--primary);padding:16px;z-index:10;box-shadow:0 -4px 24px #0000001f;max-height:60%;overflow-y:auto}.sona-header{display:flex;align-items:center;margin-bottom:10px}.sona-title{flex:1;font-weight:700;font-size:15px;color:var(--primary)}.sona-basis{font-size:12px;color:var(--muted);margin-bottom:10px;padding:6px 10px;background:var(--surface);border-radius:6px}.sona-text{font-size:15px;line-height:1.6;margin-bottom:12px;min-height:60px;white-space:pre-wrap}.sona-actions{display:flex;gap:8px;flex-wrap:wrap}.sona-warning{font-size:12px;color:var(--danger);margin-bottom:8px}.sona-loading{color:var(--muted);font-size:14px;padding:12px 0}.page-content{flex:1;overflow-y:auto;padding:16px}.form-group{margin-bottom:16px}.form-label{display:block;font-weight:500;font-size:14px;margin-bottom:6px}.form-input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:15px;font-family:inherit;background:var(--bg);color:var(--text)}.form-input:focus{outline:none;border-color:var(--primary)}.form-textarea{min-height:80px;resize:vertical}.form-hint{font-size:12px;color:var(--muted);margin-top:4px}.form-error{font-size:12px;color:var(--danger);margin-top:4px}.toggle-row{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-bottom:1px solid var(--border)}.toggle-info{flex:1}.toggle-label{font-weight:500;font-size:15px}.toggle-desc{font-size:13px;color:var(--muted);margin-top:2px}.toggle-switch{position:relative;display:inline-block;width:44px;height:24px;flex-shrink:0}.toggle-switch input{opacity:0;width:0;height:0}.toggle-track{position:absolute;top:0;right:0;bottom:0;left:0;background:var(--border);border-radius:12px;cursor:pointer;transition:background .2s}.toggle-track:after{content:"";position:absolute;top:2px;left:2px;width:20px;height:20px;background:#fff;border-radius:50%;transition:transform .2s}.toggle-switch input:checked+.toggle-track{background:var(--primary)}.toggle-switch input:checked+.toggle-track:after{transform:translate(20px)}.notice{padding:12px 16px;border-radius:8px;font-size:13px;line-height:1.6;margin-bottom:16px}.notice-info{background:#eff6ff;border:1px solid #BFDBFE;color:#1e40af}.notice-warn{background:#fffbeb;border:1px solid #FDE68A;color:#92400e}.notice-danger{background:#fef2f2;border:1px solid #FECACA;color:#991b1b}.search-input-wrap{padding:8px 16px;border-bottom:1px solid var(--border)}.search-input{width:100%;padding:8px 14px;border:1px solid var(--border);border-radius:20px;font-size:15px;font-family:inherit;background:var(--bg);color:var(--text)}.search-input:focus{outline:none;border-color:var(--primary)}button.person-item{font:inherit;background:none;border:none;border-bottom:1px solid var(--border);border-radius:0;text-align:left;width:100%;-webkit-tap-highlight-color:transparent}.person-item{display:flex;align-items:center;padding:10px 16px;border-bottom:1px solid var(--border);gap:12px;cursor:pointer}.person-item.selected{background:var(--primary-light)}.person-name{font-weight:500;font-size:15px}.person-team{font-size:13px;color:var(--muted)}.tag-grid{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}.tag-chip{padding:4px 10px;border-radius:20px;border:1px solid var(--border);font-size:13px;cursor:pointer;background:var(--bg);color:var(--text)}.tag-chip.selected{background:var(--primary);color:#fff;border-color:var(--primary)}.loading-screen{display:flex;align-items:center;justify-content:center;height:100dvh;color:var(--muted);font-size:15px}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 24px;color:var(--muted);font-size:15px;text-align:center;gap:12px}.install-guide{margin:8px 16px;padding:12px 14px;background:var(--surface);border:1px solid var(--border);border-radius:8px;font-size:13px;color:var(--muted);display:flex;align-items:flex-start;gap:8px}.install-guide-steps{margin-top:6px;line-height:1.8}.login-page{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100dvh;padding:24px;gap:24px}.login-logo{width:72px;height:72px;border-radius:20px;background:var(--primary);display:flex;align-items:center;justify-content:center;color:#fff;font-size:36px;font-weight:800}.login-title{font-size:28px;font-weight:800;color:var(--primary)}.login-desc{font-size:15px;color:var(--muted);text-align:center}.google-btn{display:flex;align-items:center;gap:10px;padding:12px 24px;border:1.5px solid var(--border);border-radius:24px;background:var(--bg);color:var(--text);font-size:15px;font-weight:600;cursor:pointer;font-family:inherit;width:100%;max-width:320px;justify-content:center}.google-btn:hover{background:var(--surface)}.email-login-form{width:100%;max-width:320px;display:flex;flex-direction:column;gap:10px}.section-header{padding:10px 16px 6px;font-size:12px;font-weight:700;color:var(--muted);letter-spacing:.05em;text-transform:uppercase}.me-avatar-row{display:flex;flex-direction:column;align-items:center;padding:24px 16px 16px;gap:8px}.me-avatar{width:80px;height:80px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:36px;font-weight:700}.me-name{font-size:20px;font-weight:700}.me-email{font-size:13px;color:var(--muted)}.me-joined{font-size:12px;color:var(--muted)}.me-avatar-btn{position:relative;background:none;border:none;cursor:pointer;padding:0;display:flex;flex-direction:column;align-items:center;gap:4px}.me-avatar-btn:disabled{cursor:default;opacity:.7}.me-avatar-img{object-fit:cover;overflow:hidden}.me-avatar-edit-label{font-size:11px;color:var(--primary)}.divider{height:1px;background:var(--border);margin:8px 0}.danger-zone{padding:16px;border-top:1px solid var(--border)}.danger-zone-title{font-size:12px;font-weight:700;color:var(--danger);margin-bottom:10px;text-transform:uppercase;letter-spacing:.05em}