:root{--bg:#0a0a0a;--surface:#111;--surface-2:#1a1a1a;--border:#262626;--border-active:#3a3a3a;--text:#e8e8e8;--text-muted:#a0a0a0;--text-dim:#7a7a7a;--accent:#c8f55a;--accent-ink:#0a0a0a;--danger:#ff7f7f;--warning:#f5c85a;--success:#7ee081;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{background:var(--bg);color:var(--text);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;font-size:14px}.loading,.placeholder,.empty{height:100%;color:var(--text-dim);justify-content:center;align-items:center;display:flex}.empty{height:auto;padding:32px 16px}.btn{font:inherit;border:1px solid var(--border);background:var(--surface-2);color:var(--text);cursor:pointer;border-radius:8px;padding:7px 14px;transition:border-color .15s,background .15s}.btn:hover{border-color:var(--border-active)}.btn:disabled{opacity:.5;cursor:default}.btn-primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);align-items:center;gap:8px;font-weight:600;text-decoration:none;display:inline-flex}.btn-ghost{background:0 0}.btn-sm{padding:4px 10px;font-size:12px}.btn.danger{color:var(--danger)}.app{grid-template-columns:340px 1fr;height:100vh;display:grid}.sidebar{border-right:1px solid var(--border);background:var(--surface);flex-direction:column;min-height:0;display:flex}.sidebar-head{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:14px 16px;display:flex}.brand{letter-spacing:.02em;font-weight:700}.filters{border-bottom:1px solid var(--border);flex-wrap:wrap;gap:6px;padding:10px 12px;display:flex}.chip{font:inherit;border:1px solid var(--border);color:var(--text-muted);cursor:pointer;background:0 0;border-radius:999px;padding:3px 10px;font-size:12px}.chip.active{border-color:var(--border-active);background:var(--surface-2);color:var(--text)}.conv-list{flex:1;min-height:0;overflow-y:auto}.conv{text-align:left;border:none;border-bottom:1px solid var(--border);cursor:pointer;width:100%;color:var(--text);background:0 0;padding:12px 16px;display:block}.conv:hover{background:var(--surface-2)}.conv.active{background:var(--surface-2);box-shadow:inset 3px 0 0 var(--accent)}.conv-top{align-items:center;gap:8px;margin-bottom:4px;display:flex}.conv-title{text-overflow:ellipsis;white-space:nowrap;flex:1;font-weight:600;overflow:hidden}.conv-time{color:var(--text-dim);font-size:12px}.conv-bottom{align-items:center;gap:8px;display:flex}.conv-preview{color:var(--text-muted);text-overflow:ellipsis;white-space:nowrap;flex:1;font-size:13px;overflow:hidden}.unread{background:var(--accent);color:var(--accent-ink);border-radius:999px;padding:1px 7px;font-size:11px;font-weight:700}.channel-badge{white-space:nowrap;border:1px solid;border-radius:5px;padding:1px 7px;font-size:11px;font-weight:600}.main{flex-direction:column;min-height:0;display:flex}.thread-head{border-bottom:1px solid var(--border);align-items:center;gap:10px;padding:14px 20px;display:flex}.thread-title{font-weight:600}.thread{flex-direction:column;flex:1;gap:10px;min-height:0;padding:20px;display:flex;overflow-y:auto}.bubble{border:1px solid var(--border);border-radius:12px;max-width:64%;padding:9px 13px}.bubble.in{background:var(--surface);border-bottom-left-radius:4px;align-self:flex-start}.bubble.out{background:var(--surface-2);border-bottom-right-radius:4px;align-self:flex-end}.bubble-author{color:var(--text-dim);margin-bottom:3px;font-size:12px}.bubble-body{white-space:pre-wrap;word-break:break-word;line-height:1.45}.bubble-body a{color:var(--accent)}.attach{color:var(--accent);margin-top:6px;font-size:12px;display:inline-block}.bubble-meta{color:var(--text-dim);text-align:right;margin-top:5px;font-size:11px}.msg-status.failed{color:var(--danger)}.msg-status.sending{color:var(--text-dim)}.composer{border-top:1px solid var(--border);align-items:flex-end;gap:10px;padding:14px 20px;display:flex}.composer textarea{resize:none;background:var(--surface);border:1px solid var(--border);color:var(--text);font:inherit;border-radius:10px;flex:1;padding:10px 12px;line-height:1.4}.composer textarea:focus{border-color:var(--border-active);outline:none}.signin{justify-content:center;align-items:center;height:100vh;display:flex}.signin-card{background:var(--surface);border:1px solid var(--border);text-align:center;border-radius:16px;max-width:360px;padding:40px}.signin-title{margin-bottom:8px;font-size:24px}.signin-sub{color:var(--text-muted);margin-bottom:24px}.callout{border:1px solid var(--border);color:var(--text-muted);border-radius:8px;margin-bottom:12px;padding:10px 12px;font-size:13px}.callout.error{border-color:color-mix(in srgb, var(--danger) 40%, transparent);color:var(--danger)}.callout.warn{border-color:color-mix(in srgb, var(--warning) 40%, transparent);color:var(--warning)}.modal-backdrop{z-index:20;background:#0009;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{background:var(--surface);border:1px solid var(--border);border-radius:14px;width:100%;max-width:560px;max-height:85vh;padding:22px;overflow-y:auto}.modal-sm{max-width:420px}.modal-head{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.modal-actions{justify-content:flex-end;gap:10px;margin-top:16px;display:flex}.conn-section{margin-bottom:20px}.conn-h{text-transform:uppercase;letter-spacing:.05em;color:var(--text-dim);margin-bottom:8px;font-size:12px}.conn-row{border-bottom:1px solid var(--border);align-items:center;gap:10px;padding:9px 0;display:flex}.conn-label{flex:1}.conn-status{color:var(--text-dim);font-size:12px}.status-connected{color:var(--success)}.status-error,.status-auth_required{color:var(--danger)}.status-connecting{color:var(--warning)}.conn-warn{color:var(--warning);font-size:12px}.conn-error{color:var(--danger)}.conn-actions{gap:6px;display:flex}.field{margin-bottom:12px;display:block}.field span{color:var(--text-muted);margin-bottom:5px;font-size:12px;display:block}.field input{background:var(--surface-2);border:1px solid var(--border);width:100%;color:var(--text);font:inherit;border-radius:8px;padding:9px 11px}.field input:focus{border-color:var(--border-active);outline:none}.pairing{text-align:center}.pairing-msg{color:var(--text-muted);margin-bottom:14px}.pairing-qr{background:#fff;border-radius:12px;width:264px;height:264px;margin:0 auto 12px;padding:10px;display:block}.pairing-hint{color:var(--text-dim);margin-bottom:8px;font-size:12px}@media (max-width:720px){.app{grid-template-columns:1fr}}