.theme-toggle{font-family:var(--font);color:var(--text-secondary);border-radius:var(--radius);width:28px;height:28px;transition:color var(--transition), background var(--transition);flex-shrink:0;justify-content:center;align-items:center;font-size:1rem;display:flex}.theme-toggle:hover{color:var(--text);background:var(--bg-tertiary)}.home{background:var(--bg);flex-direction:column;min-height:100dvh;display:flex}.home-header{border-bottom:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:center;padding:18px 28px;display:flex}.home-logo{color:var(--text);letter-spacing:-.02em;font-size:1rem;font-weight:700}.home-main{flex:1;justify-content:center;align-items:center;padding:60px 28px;display:flex}.home-content{flex-direction:column;gap:40px;width:100%;max-width:400px;display:flex}.home-title-block{flex-direction:column;gap:14px;display:flex}.home-title{letter-spacing:-.04em;color:var(--text);font-size:clamp(2.2rem,8vw,3.2rem);font-weight:700;line-height:1}.home-desc{color:var(--text-secondary);letter-spacing:.01em;font-size:.88rem;font-weight:300;line-height:2}.home-input-group{flex-direction:column;gap:8px;display:flex}.home-input-wrap{border:1.5px solid var(--border);border-radius:var(--radius);background:var(--bg-secondary);transition:border-color var(--transition), background var(--transition);align-items:stretch;display:flex;overflow:hidden}.home-input-wrap.focused{border-color:var(--text);background:var(--bg)}.home-input-wrap.has-error{border-color:var(--danger)}.home-input{letter-spacing:.01em;color:var(--text);background:0 0;flex:1;min-width:0;padding:13px 14px;font-size:.95rem;font-weight:400;line-height:1.4}.home-input:focus{outline:none}.home-enter-btn{color:var(--text-muted);white-space:nowrap;border-left:1.5px solid var(--border);transition:color var(--transition), background var(--transition);letter-spacing:.03em;align-items:center;padding:13px 14px;font-size:.75rem;font-weight:500;display:flex}.home-input-wrap.focused .home-enter-btn{color:var(--text);border-left-color:var(--border)}.home-enter-btn:hover{color:var(--text);background:var(--bg-tertiary)}.home-error{color:var(--danger);letter-spacing:.01em;padding-left:2px;font-size:.75rem}.home-hints{flex-direction:column;gap:9px;display:flex}.hint-item{color:var(--text-muted);letter-spacing:.01em;align-items:center;gap:10px;font-size:.75rem;line-height:1.4;display:flex}.hint-dot{background:var(--border-strong);border-radius:50%;flex-shrink:0;width:3px;height:3px}.home-footer{border-top:1px solid var(--border);flex-shrink:0;justify-content:center;align-items:center;padding:18px 28px;display:flex}.home-footer-text{color:var(--text-muted);letter-spacing:.08em;font-size:.7rem}.room{flex-direction:column;height:100dvh;display:flex;overflow:hidden}.room-loading{flex-direction:column;justify-content:center;align-items:center;gap:20px;height:100dvh;display:flex}.loading-text{color:var(--text-secondary);letter-spacing:.02em;font-size:.95rem}.loading-tag{color:var(--text)}.loading-cursor{color:var(--text);animation:1s infinite blink}.error-text{color:var(--danger)}.retry-btn{font-family:var(--font);color:var(--text-muted);border:1px solid var(--border);border-radius:var(--radius);transition:all var(--transition);padding:6px 10px;font-size:.82rem}.retry-btn:hover{color:var(--text);border-color:var(--border-strong)}.room-header{border-bottom:1px solid var(--border);background:var(--bg);z-index:10;flex-shrink:0;justify-content:space-between;align-items:center;padding:14px 20px;display:flex;position:sticky;top:0}.room-header-left{align-items:center;gap:14px;min-width:0;display:flex}.back-btn{font-family:var(--font);color:var(--text-muted);border-radius:var(--radius);width:28px;height:28px;transition:color var(--transition), background var(--transition);flex-shrink:0;justify-content:center;align-items:center;font-size:1rem;display:flex}.back-btn:hover{color:var(--text);background:var(--bg-tertiary)}.room-info{flex-direction:column;gap:2px;min-width:0;display:flex}.room-hashtag{letter-spacing:-.01em;white-space:nowrap;text-overflow:ellipsis;font-size:.95rem;font-weight:700;overflow:hidden}.room-meta{color:var(--text-muted);letter-spacing:.02em;align-items:center;gap:6px;font-size:.7rem;display:flex}.meta-item{align-items:center;gap:5px;display:flex}.meta-dot{border-radius:50%;flex-shrink:0;width:5px;height:5px}.meta-dot.online{background:#4caf7d}.room-messages{flex-direction:column;flex:1;gap:0;padding:20px 0 8px;display:flex;overflow-y:auto}.room-empty{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:8px;padding:40px;display:flex}.empty-title{color:var(--text);letter-spacing:-.02em;font-size:1.1rem;font-weight:700}.empty-desc{color:var(--text-muted);letter-spacing:.01em;font-size:.82rem}.message-group{flex-direction:column;display:flex}.date-divider{color:var(--text-muted);letter-spacing:.04em;align-items:center;gap:10px;padding:16px 20px 8px;font-size:.7rem;display:flex}.date-divider:before,.date-divider:after{content:"";background:var(--border);flex:1;height:1px}.message{flex-direction:column;gap:2px;padding:2px 20px;display:flex}.message.show-sender{margin-top:12px}.message.self{align-items:flex-end}.message.other{align-items:flex-start}.msg-sender{color:var(--text-muted);letter-spacing:.02em;margin-bottom:2px;padding:0 2px;font-size:.7rem}.msg-row{align-items:flex-end;gap:8px;max-width:min(80%,520px);display:flex}.message.self .msg-row{flex-direction:row-reverse}.msg-bubble{border-radius:var(--radius);letter-spacing:.01em;word-break:break-word;white-space:pre-wrap;padding:9px 13px;font-size:.88rem;line-height:1.55}.msg-bubble.self{background:var(--bubble-self);color:var(--bubble-self-text)}.msg-bubble.other{background:var(--bg-tertiary);color:var(--text);border:1px solid var(--border)}.file-bubble{cursor:pointer;transition:opacity var(--transition);align-items:center;gap:10px;text-decoration:none;display:flex}.file-bubble:hover{opacity:.8}.file-icon{flex-shrink:0;font-size:.9rem}.file-info{flex-direction:column;gap:2px;min-width:0;display:flex}.file-name{white-space:nowrap;text-overflow:ellipsis;max-width:200px;font-size:.82rem;font-weight:500;overflow:hidden}.file-size{opacity:.65;font-size:.7rem}.file-dl{opacity:.65;flex-shrink:0;font-size:.82rem}.msg-time{color:var(--text-muted);white-space:nowrap;flex-shrink:0;margin-bottom:2px;font-size:.65rem}.error-toast{background:var(--danger);color:#fff;border-radius:var(--radius);cursor:pointer;z-index:100;letter-spacing:.02em;padding:8px 14px;font-size:.78rem;position:fixed;bottom:80px;left:50%;transform:translate(-50%)}.room-footer{border-top:1px solid var(--border);background:var(--bg);flex-shrink:0;padding:12px 20px 10px}.room-input-wrap{background:var(--bg-secondary);border:1.5px solid var(--border);border-radius:var(--radius);transition:border-color var(--transition);align-items:flex-end;gap:8px;padding:6px 8px;display:flex}.room-input-wrap:focus-within{border-color:var(--border-strong)}.file-input-hidden{display:none}.attach-btn{font-family:var(--font);color:var(--text-muted);border-radius:var(--radius);width:30px;height:30px;transition:color var(--transition), background var(--transition);flex-shrink:0;justify-content:center;align-items:center;font-size:1.1rem;font-weight:300;line-height:1;display:flex}.attach-btn:hover:not(:disabled){color:var(--text);background:var(--bg-tertiary)}.attach-btn:disabled{opacity:.4;cursor:not-allowed}.room-textarea{resize:none;letter-spacing:.01em;flex:1;min-width:0;max-height:120px;padding:4px;font-size:.88rem;line-height:1.55;overflow-y:auto}.room-textarea:focus{outline:none}.send-btn{font-family:var(--font);color:var(--text-muted);border-radius:var(--radius);width:30px;height:30px;transition:color var(--transition), background var(--transition);flex-shrink:0;justify-content:center;align-items:center;font-size:1rem;display:flex}.send-btn:hover:not(:disabled){color:var(--text);background:var(--bg-tertiary)}.send-btn:disabled{opacity:.3;cursor:not-allowed}.room-input-hint{color:var(--text-muted);text-align:center;letter-spacing:.03em;opacity:.6;margin-top:6px;font-size:.65rem}@media (width<=480px){.room-input-hint{display:none}.room-header{padding:12px 14px}.room-footer{padding:10px 14px 8px}.room-messages{padding:12px 0 4px}.message{padding:2px 14px}}.admin-login{background:var(--bg);flex-direction:column;min-height:100dvh;display:flex}.admin-login-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:18px 28px;display:flex}.admin-logo{color:var(--text);font-size:1rem;font-weight:700}.admin-login-main{flex:1;justify-content:center;align-items:center;padding:40px 28px;display:flex}.admin-login-box{flex-direction:column;gap:32px;width:100%;max-width:360px;display:flex}.admin-login-title-block{flex-direction:column;gap:6px;display:flex}.admin-login-title{letter-spacing:-.04em;color:var(--text);font-size:2rem;font-weight:700}.admin-login-sub{color:var(--text-muted);letter-spacing:.01em;font-size:.82rem}.admin-login-form{flex-direction:column;gap:16px;display:flex}.admin-field{flex-direction:column;gap:6px;display:flex}.admin-label{color:var(--text-secondary);letter-spacing:.02em;font-size:.75rem}.admin-input{border:1.5px solid var(--border);border-radius:var(--radius);background:var(--bg-secondary);color:var(--text);width:100%;transition:border-color var(--transition);padding:11px 13px;font-size:.88rem}.admin-input:focus{border-color:var(--text);outline:none}.admin-error{color:var(--danger);letter-spacing:.01em;font-size:.75rem}.admin-login-btn{color:var(--bg);background:var(--text);border-radius:var(--radius);letter-spacing:.02em;transition:opacity var(--transition);text-align:left;margin-top:4px;padding:11px 13px;font-size:.85rem;font-weight:500}.admin-login-btn:hover:not(:disabled){opacity:.85}.admin-login-btn:disabled{opacity:.4;cursor:not-allowed}.dashboard{background:var(--bg);height:100dvh;display:flex;overflow:hidden}.dashboard-sidebar{border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;width:260px;height:100%;display:flex;overflow:hidden}.sidebar-header{border-bottom:1px solid var(--border);flex-shrink:0;align-items:center;gap:8px;padding:16px;display:flex}.sidebar-logo{color:var(--text);font-size:1rem;font-weight:700}.sidebar-title{color:var(--text-secondary);letter-spacing:.02em;flex:1;font-size:.82rem;font-weight:500}.sidebar-search{flex-shrink:0;padding:12px 12px 8px}.sidebar-search-input{border:1.5px solid var(--border);border-radius:var(--radius);background:var(--bg-secondary);width:100%;color:var(--text);transition:border-color var(--transition);padding:8px 10px;font-size:.8rem}.sidebar-search-input:focus{border-color:var(--border-strong);outline:none}.sidebar-stats{border-bottom:1px solid var(--border);border-top:1px solid var(--border);flex-shrink:0;gap:0;display:flex}.stat{border-right:1px solid var(--border);flex-direction:column;flex:1;align-items:center;gap:2px;padding:10px 8px;display:flex}.stat:last-child{border-right:none}.stat-value{color:var(--text);letter-spacing:-.02em;font-size:1rem;font-weight:700}.stat-label{color:var(--text-muted);letter-spacing:.03em;font-size:.65rem}.sidebar-rooms{flex-direction:column;flex:1;gap:2px;padding:8px;display:flex;overflow-y:auto}.sidebar-loading,.sidebar-empty{color:var(--text-muted);letter-spacing:.01em;padding:12px 8px;font-size:.78rem}.room-item{border-radius:var(--radius);text-align:left;width:100%;transition:background var(--transition);border:1px solid #0000;justify-content:space-between;align-items:center;gap:8px;padding:8px 10px;display:flex}.room-item:hover{background:var(--bg-secondary)}.room-item.active{background:var(--bg-tertiary);border-color:var(--border)}.room-item.expired .room-item-tag{color:var(--text-muted)}.room-item-tag{color:var(--text);white-space:nowrap;text-overflow:ellipsis;min-width:0;font-size:.82rem;font-weight:500;overflow:hidden}.room-item-meta{color:var(--text-muted);white-space:nowrap;flex-shrink:0;font-size:.68rem}.sidebar-footer{border-top:1px solid var(--border);flex-shrink:0;padding:12px}.signout-btn{font-family:var(--font);color:var(--text-muted);letter-spacing:.02em;border-radius:var(--radius);text-align:left;width:100%;transition:color var(--transition), background var(--transition);padding:6px 8px;font-size:.78rem}.signout-btn:hover{color:var(--text);background:var(--bg-tertiary)}.dashboard-main{flex-direction:column;flex:1;display:flex;overflow-y:auto}.dashboard-empty{flex:1;justify-content:center;align-items:center;display:flex}.dashboard-empty-text{color:var(--text-muted);letter-spacing:.01em;font-size:.82rem}.room-detail{flex-direction:column;height:100%;display:flex}.room-detail-header{border-bottom:1px solid var(--border);flex-shrink:0;justify-content:space-between;align-items:flex-start;gap:16px;padding:20px 24px;display:flex}.room-detail-info{flex-direction:column;gap:4px;display:flex}.room-detail-tag{letter-spacing:-.03em;color:var(--text);font-size:1.3rem;font-weight:700}.room-detail-meta{color:var(--text-muted);letter-spacing:.01em;flex-wrap:wrap;align-items:center;gap:6px;font-size:.72rem;display:flex}.meta-sep{color:var(--border-strong)}.delete-room-btn{font-family:var(--font);color:var(--danger);border:1px solid var(--danger);border-radius:var(--radius);opacity:.7;transition:opacity var(--transition);white-space:nowrap;flex-shrink:0;padding:7px 12px;font-size:.75rem}.delete-room-btn:hover{opacity:1}.room-detail-body{flex-direction:column;flex:1;gap:32px;padding:20px 24px;display:flex;overflow-y:auto}.detail-section{flex-direction:column;gap:12px;display:flex}.detail-section-title{color:var(--text-secondary);letter-spacing:.04em;text-transform:uppercase;align-items:center;gap:8px;font-size:.75rem;font-weight:500;display:flex}.detail-count{color:var(--text-muted);text-transform:none;letter-spacing:0;font-size:.7rem;font-weight:400}.detail-loading,.detail-empty{color:var(--text-muted);letter-spacing:.01em;font-size:.78rem}.messages-list{flex-direction:column;gap:2px;display:flex}.msg-row-admin{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-secondary);transition:background var(--transition);align-items:flex-start;gap:12px;padding:10px 12px;display:flex}.msg-row-admin:hover{background:var(--bg-tertiary)}.msg-admin-meta{flex-direction:column;flex-shrink:0;gap:2px;width:130px;display:flex}.msg-admin-sender{color:var(--text);white-space:nowrap;text-overflow:ellipsis;font-size:.75rem;font-weight:500;overflow:hidden}.msg-admin-time{color:var(--text-muted);white-space:nowrap;font-size:.65rem}.msg-admin-content{color:var(--text-secondary);word-break:break-word;flex:1;min-width:0;font-size:.82rem;line-height:1.5}.msg-delete-btn{font-family:var(--font);color:var(--text-muted);border-radius:var(--radius);width:24px;height:24px;transition:color var(--transition), background var(--transition);flex-shrink:0;justify-content:center;align-items:center;font-size:1rem;line-height:1;display:flex}.msg-delete-btn:hover{color:var(--danger);background:var(--bg-tertiary)}.files-list{flex-direction:column;gap:2px;display:flex}.file-row-admin{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-secondary);transition:background var(--transition);align-items:center;gap:12px;padding:10px 12px;display:flex}.file-row-admin:hover{background:var(--bg-tertiary)}.file-admin-info{flex-direction:column;flex:1;gap:3px;min-width:0;display:flex}.file-admin-name{color:var(--text);white-space:nowrap;text-overflow:ellipsis;text-underline-offset:2px;text-decoration:underline;-webkit-text-decoration-color:var(--border-strong);text-decoration-color:var(--border-strong);font-size:.82rem;font-weight:500;overflow:hidden}.file-admin-name:hover{-webkit-text-decoration-color:var(--text);text-decoration-color:var(--text)}.file-admin-meta{color:var(--text-muted);flex-wrap:wrap;align-items:center;gap:6px;font-size:.68rem;display:flex}.confirm-overlay{z-index:100;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#0000004d;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}[data-theme=dark] .confirm-overlay{background:#0009}.confirm-box{background:var(--bg);border:1.5px solid var(--border);border-radius:var(--radius);flex-direction:column;gap:8px;width:100%;max-width:340px;margin:16px;padding:24px;display:flex}.confirm-title{color:var(--text);letter-spacing:-.01em;font-size:.95rem;font-weight:700}.confirm-label{color:var(--text-secondary);word-break:break-word;font-size:.8rem}.confirm-desc{color:var(--text-muted);margin-bottom:8px;font-size:.75rem}.confirm-actions{gap:8px;margin-top:4px;display:flex}.confirm-cancel{font-family:var(--font);color:var(--text-secondary);border:1px solid var(--border);border-radius:var(--radius);transition:all var(--transition);padding:8px 14px;font-size:.8rem}.confirm-cancel:hover{color:var(--text);border-color:var(--border-strong)}.confirm-delete{font-family:var(--font);color:#fff;background:var(--danger);border-radius:var(--radius);opacity:.85;transition:opacity var(--transition);padding:8px 14px;font-size:.8rem}.confirm-delete:hover{opacity:1}.admin-toast{background:var(--text);color:var(--bg);border-radius:var(--radius);z-index:200;letter-spacing:.02em;white-space:nowrap;padding:8px 16px;font-size:.78rem;position:fixed;bottom:24px;left:50%;transform:translate(-50%)}@media (width<=640px){.dashboard{flex-direction:column}.dashboard-sidebar{border-right:none;border-bottom:1px solid var(--border);width:100%;height:auto;max-height:40dvh}}*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f8f8f6;--bg-secondary:#f1f1ee;--bg-tertiary:#e8e8e4;--border:#d8d8d0;--border-strong:#b4b4ac;--text:#1a1a18;--text-secondary:#6b6b64;--text-muted:#9b9b92;--danger:#c0392b;--bubble-self:#1a1a18;--bubble-self-text:#f8f8f6;--font:"JetBrains Mono", "Courier New", monospace;--radius:2px;--transition:.15s ease}[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#111110;--bg-secondary:#1a1a18;--bg-tertiary:#242422;--border:#2e2e2c;--border-strong:#484844;--text:#f0f0ec;--text-secondary:#9b9b92;--text-muted:#6b6b64;--bubble-self:#f0f0ec;--bubble-self-text:#111110}html,body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;min-height:100dvh;font-family:JetBrains Mono,Courier New,monospace;font-size:14px;overflow-x:hidden}body{transition:background var(--transition), color var(--transition)}#root{background:var(--bg);flex-direction:column;min-height:100dvh;display:flex}::-webkit-scrollbar{width:4px;height:4px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:2px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}::selection{background:var(--text);color:var(--bg)}:focus-visible{outline:1.5px solid var(--text);outline-offset:2px}button{font-family:var(--font);cursor:pointer;background:0 0;border:none}input,textarea{font-family:var(--font);color:var(--text);background:0 0;border:none}input::placeholder,textarea::placeholder{color:var(--text-muted)}a{color:inherit;text-decoration:none}@keyframes fadeUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes blink{0%,to{opacity:1}50%{opacity:0}}.fade-up{animation:.3s both fadeUp}.fade-in{animation:.2s both fadeIn}