:root{--bg: #0f1115;--panel: #1a1d24;--panel-2: #232730;--border: #2c313c;--text: #e6e8ec;--muted: #8a909c;--accent: #25d366;--accent-dim: #1a8f47;--danger: #e5484d}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}button{font:inherit;cursor:pointer;border:none;border-radius:8px;padding:8px 14px;background:var(--accent);color:#06231a;font-weight:600}button.secondary{background:var(--panel-2);color:var(--text);border:1px solid var(--border)}button.danger{background:transparent;color:var(--danger);border:1px solid var(--danger)}button:disabled{opacity:.5;cursor:not-allowed}input,select{font:inherit;background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:9px 12px;width:100%}.error{color:var(--danger);font-size:14px}.login{max-width:380px;margin:12vh auto;background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:28px;display:flex;flex-direction:column;gap:14px}.login h1{margin:0;font-size:20px}.login p{margin:0;color:var(--muted);font-size:14px}.topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;border-bottom:1px solid var(--border);background:var(--panel)}.topbar nav{display:flex;gap:8px}.tab{background:transparent;color:var(--muted);border:1px solid transparent}.tab.active{color:var(--text);background:var(--panel-2);border-color:var(--border)}.content{padding:20px;max-width:1100px;margin:0 auto}.card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:16px;margin-bottom:12px;display:flex;align-items:center;justify-content:space-between;gap:12px}.card.active{border-color:var(--accent-dim)}.row{display:flex;gap:10px;align-items:center}.badge{font-size:12px;padding:3px 9px;border-radius:999px;border:1px solid var(--border);color:var(--muted)}.badge.connected{color:var(--accent);border-color:var(--accent-dim)}.badge.connecting{color:#e0a526;border-color:#7a5e16}.qr{text-align:center;background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:16px;margin-bottom:12px}.qr img{width:240px;height:240px;background:#fff;border-radius:8px}.inbox{display:grid;grid-template-columns:300px 1fr;gap:12px;height:calc(100vh - 110px)}.conv-list{background:var(--panel);border:1px solid var(--border);border-radius:12px;overflow-y:auto}.conv-item{padding:12px 14px;border-bottom:1px solid var(--border);cursor:pointer}.conv-item:hover,.conv-item.active{background:var(--panel-2)}.conv-item small{color:var(--muted)}.thread{background:var(--panel);border:1px solid var(--border);border-radius:12px;display:flex;flex-direction:column}.thread-head{padding:12px 16px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}.messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:8px}.bubble{max-width:70%;padding:8px 12px;border-radius:12px;font-size:14px;line-height:1.4}.bubble.inbound{align-self:flex-start;background:var(--panel-2)}.bubble.outbound{align-self:flex-end;background:var(--accent-dim);color:#eafff3}.composer{display:flex;gap:8px;padding:12px;border-top:1px solid var(--border)}.empty{color:var(--muted);text-align:center;margin-top:30px}