*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0f0f11;--surface: #1a1a2e;--surface-2: #232340;--border: #2a2a4a;--primary: #0088cc;--primary-hover: #0099e6;--accent: #6c5ce7;--success: #00b894;--danger: #e74c3c;--warning: #f39c12;--text: #e8e8f0;--text-dim: #8888aa;--radius: 12px;--shadow: 0 4px 24px rgba(0, 0, 0, .3)}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;line-height:1.6;min-height:100vh}#app{max-width:720px;margin:0 auto;padding:24px 16px}.header{text-align:center;padding:32px 0 24px}.header h1{font-size:1.8rem;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header p{color:var(--text-dim);font-size:.9rem;margin-top:8px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:16px;box-shadow:var(--shadow)}.card h2{font-size:1.1rem;margin-bottom:16px;display:flex;align-items:center;gap:8px}.card h2 .icon{font-size:1.3rem}label{display:block;font-size:.85rem;color:var(--text-dim);margin-bottom:6px;font-weight:500}input,textarea{width:100%;background:var(--surface-2);border:1px solid var(--border);border-radius:8px;padding:12px 14px;color:var(--text);font-size:.95rem;font-family:inherit;transition:border-color .2s;outline:none}input:focus,textarea:focus{border-color:var(--primary)}input::placeholder,textarea::placeholder{color:var(--text-dim);opacity:.6}.form-group{margin-bottom:16px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}button{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border:none;border-radius:8px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .2s;font-family:inherit}button:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff;width:100%}.btn-primary:hover:not(:disabled){background:var(--primary-hover);transform:translateY(-1px)}.btn-success{background:var(--success);color:#fff;width:100%}.btn-success:hover:not(:disabled){opacity:.9}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover:not(:disabled){opacity:.9}.btn-sm{padding:8px 16px;font-size:.85rem}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text-dim)}.btn-outline:hover:not(:disabled){border-color:var(--primary);color:var(--primary)}.status-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:20px;font-size:.8rem;font-weight:600}.status-badge.connected{background:#00b89426;color:var(--success)}.status-badge.disconnected{background:#e74c3c26;color:var(--danger)}.status-badge.connecting{background:#f39c1226;color:var(--warning)}.status-dot{width:8px;height:8px;border-radius:50%;background:currentColor}.status-badge.connecting .status-dot{animation:pulse 1.2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.3}}.progress-container{margin-top:16px}.progress-bar-bg{width:100%;height:8px;background:var(--surface-2);border-radius:4px;overflow:hidden}.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:4px;transition:width .3s ease;width:0%}.progress-info{display:flex;justify-content:space-between;margin-top:8px;font-size:.82rem;color:var(--text-dim)}.log-container{background:var(--surface-2);border:1px solid var(--border);border-radius:8px;padding:12px;max-height:250px;overflow-y:auto;font-family:SF Mono,Fira Code,Cascadia Code,monospace;font-size:.8rem;line-height:1.8}.log-entry{padding:2px 0;word-break:break-all}.log-entry.info{color:var(--primary)}.log-entry.success{color:var(--success)}.log-entry.error{color:var(--danger)}.log-entry.warn{color:var(--warning)}.log-entry.dim{color:var(--text-dim)}.file-info{display:grid;grid-template-columns:auto 1fr;gap:4px 16px;font-size:.9rem;padding:12px;background:var(--surface-2);border-radius:8px;margin-top:12px}.file-info dt{color:var(--text-dim);font-weight:500}.file-info dd{color:var(--text);font-weight:600}.hidden{display:none!important}.mt-12{margin-top:12px}.mt-16{margin-top:16px}.mb-8{margin-bottom:8px}.flex-between{display:flex;justify-content:space-between;align-items:center}.text-dim{color:var(--text-dim);font-size:.82rem}.hint{font-size:.78rem;color:var(--text-dim);margin-top:6px;opacity:.8}.history-item{display:flex;align-items:center;gap:12px;padding:12px;background:var(--surface-2);border-radius:8px;margin-top:8px}.history-item .file-icon{font-size:1.5rem}.history-item .file-details{flex:1;min-width:0}.history-item .file-name{font-weight:600;font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-item .file-meta{font-size:.78rem;color:var(--text-dim)}.incoming-file-item{background:var(--surface-2);border-radius:8px;padding:12px;margin-top:8px}.incoming-file-header{display:flex;align-items:center;gap:12px}.incoming-file-item .file-icon{font-size:1.5rem}.incoming-dl-btn{margin-top:10px;width:100%}.msg-item{background:var(--surface-2);border-radius:8px;padding:12px;margin-top:8px;cursor:default;transition:border-color .2s;border:1px solid transparent}.msg-item:hover{border-color:var(--border)}.msg-sender{display:flex;align-items:center;gap:8px;margin-bottom:6px;flex-wrap:wrap}.msg-sender-name{font-weight:600;font-size:.88rem;color:var(--text)}.msg-time{font-size:.75rem;color:var(--text-dim);margin-left:auto}.sender-badge{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;border-radius:12px;font-size:.72rem;font-weight:600;flex-shrink:0}.sender-user{background:#0088cc26;color:var(--primary)}.sender-channel{background:#6c5ce726;color:var(--accent)}.sender-group{background:#00b89426;color:var(--success)}.msg-text{font-size:.9rem;color:var(--text);line-height:1.5;word-break:break-word}.msg-media-badge{font-size:.78rem;color:var(--warning);margin-top:4px}.msg-actions{margin-top:8px;display:flex;gap:8px}.msg-reply-btn{width:auto!important}.modal-overlay{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;padding:16px;backdrop-filter:blur(4px)}.modal{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);width:100%;max-width:520px;max-height:80vh;display:flex;flex-direction:column;box-shadow:0 16px 48px #00000080}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--border)}.modal-header h3{font-size:1rem;font-weight:600;margin:0}.modal-body{padding:16px 20px;flex:1;overflow-y:auto;display:flex;flex-direction:column}.reply-original{background:var(--surface-2);border-left:3px solid var(--primary);border-radius:0 8px 8px 0;padding:10px 12px;margin-bottom:12px}.reply-original-sender{font-size:.8rem;font-weight:600;color:var(--primary);margin-bottom:4px}.reply-original-text{font-size:.88rem;color:var(--text-dim);line-height:1.4;word-break:break-word}.reply-conversation{flex:1;min-height:80px;max-height:300px;overflow-y:auto;margin-bottom:12px}.reply-sent{background:#0088cc26;border-radius:12px 12px 4px;padding:8px 12px;margin-bottom:8px;margin-left:40px;max-width:80%;float:right;clear:both}.reply-sent-text{font-size:.88rem;color:var(--text);word-break:break-word}.reply-sent-time{font-size:.7rem;color:var(--text-dim);text-align:right;margin-top:4px}.reply-input-row{display:flex;gap:8px;align-items:center}.reply-input-row input{flex:1}.reply-input-row button{flex-shrink:0;width:auto!important}.reply-received{background:var(--surface-2);border-radius:12px 12px 12px 4px;padding:8px 12px;margin-bottom:8px;margin-right:40px;max-width:80%;clear:both}.reply-received-text{font-size:.88rem;color:var(--text);word-break:break-word}.reply-received-time{font-size:.7rem;color:var(--text-dim);margin-top:4px}.convo-item{cursor:pointer}.convo-item:hover{border-color:var(--primary)!important;background:#0088cc0d}.msg-count{font-size:.72rem;margin-left:auto;margin-right:8px}.clickable-msg{cursor:pointer;transition:background .15s}.clickable-msg:hover{background:#0088cc1a!important}.reply-quote-bar{display:flex;align-items:center;justify-content:space-between;gap:8px;background:var(--surface-2);border-left:3px solid var(--primary);border-radius:0 8px 8px 0;padding:6px 10px}.reply-quote-text{font-size:.78rem;color:var(--primary);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.reply-quote-cancel{background:none;border:none;color:var(--text-dim);cursor:pointer;font-size:.85rem;padding:2px 6px;min-width:auto;width:auto!important}.reply-quote-cancel:hover{color:var(--danger)}.chat-photo-thumb{max-width:200px;max-height:200px;border-radius:8px;margin-bottom:4px;cursor:zoom-in;display:block}.chat-photo-placeholder{background:var(--surface);border:1px dashed var(--border);border-radius:8px;padding:16px;text-align:center;font-size:.85rem;color:var(--text-dim);margin-bottom:4px}.photo-lightbox{position:fixed;inset:0;background:#000000e6;display:flex;align-items:center;justify-content:center;z-index:2000;cursor:pointer;padding:24px}.photo-lightbox img{max-width:90vw;max-height:90vh;border-radius:8px;object-fit:contain}.lightbox-close{position:fixed;top:16px;right:16px;color:#fff;font-size:1.5rem;cursor:pointer;background:#00000080;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%}@media(max-width:600px){.form-row{grid-template-columns:1fr}.header h1{font-size:1.4rem}.card{padding:16px}}