:root{--ink: #111827;--muted: #6b7280;--line: #e5e7eb;--bg: #f3f4f6;--accent: #2563eb;--mine: #2563eb;--ok: #16a34a;--warn: #d97706;--bad: #dc2626;font-family:system-ui,-apple-system,Segoe UI,sans-serif;color:var(--ink);background:var(--bg)}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}.page{max-width:760px;margin:0 auto;min-height:100vh;background:#fff;display:flex;flex-direction:column}.page.narrow{max-width:620px}.topbar{position:sticky;top:0;z-index:2;display:flex;align-items:center;gap:10px;padding:12px 16px;background:#fff;border-bottom:1px solid var(--line)}.topbar h1{margin:0;font-size:20px;flex:1}.back{font-size:20px;padding:2px 8px;border-radius:8px}.back:hover{background:var(--bg)}.who{flex:1;display:flex;flex-direction:column;min-width:0}.who strong{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.muted,.hint{color:var(--muted);font-size:12px}.hint{margin:0 0 10px}.switcher{font-size:12px;color:var(--muted)}.switcher a{color:var(--accent);margin-right:8px}.network{display:flex;align-items:center;gap:6px;font-size:12px;white-space:nowrap}.dot{width:8px;height:8px;border-radius:50%}.dot.on{background:var(--ok)}.dot.off{background:var(--bad)}.pending{background:#fef3c7;color:#92400e;padding:2px 8px;border-radius:999px;font-weight:600}.switch{position:relative;width:36px;height:20px;display:inline-block}.switch input{opacity:0;width:0;height:0}.slider{position:absolute;top:0;right:0;bottom:0;left:0;background:#d1d5db;border-radius:999px;transition:.2s}.slider:before{content:"";position:absolute;width:16px;height:16px;left:2px;top:2px;background:#fff;border-radius:50%;transition:.2s}.switch input:checked+.slider{background:var(--ok)}.switch input:checked+.slider:before{transform:translate(16px)}.intro{margin:16px;color:#374151;font-size:14px;line-height:1.5}.card{margin:0 16px 16px;padding:14px 16px;border:1px solid var(--line);border-radius:12px}.card h2{margin:0 0 8px;font-size:15px}.accounts{list-style:none;margin:0;padding:0}.accounts li{display:flex;align-items:center;gap:8px}.account{flex:1;display:flex;align-items:center;gap:10px;padding:8px;border:0;background:none;border-radius:10px;text-align:left}.account:hover{background:var(--bg)}.tag{font-size:11px;background:#dcfce7;color:#166534;padding:2px 8px;border-radius:999px}.link{border:0;background:none;color:var(--muted);font-size:12px}.link:hover{color:var(--bad)}.join{display:flex;gap:8px;margin-top:12px}.join input,.group-title{flex:1;padding:9px 12px;border:1px solid var(--line);border-radius:10px;font-size:16px}.join button,.toolbar button,.dialog-actions button,.composer button,.failed-actions button{border:0;border-radius:10px;padding:8px 14px;background:var(--accent);color:#fff;font-weight:600}button:disabled{opacity:.5;cursor:default}button.secondary{background:#e5e7eb;color:var(--ink)}.error{color:var(--bad);font-size:13px;margin:8px 16px}.error.slim{margin:6px 16px 0}.empty{color:var(--muted);padding:16px;text-align:center;list-style:none}.avatar{display:inline-flex;align-items:center;justify-content:center;border-radius:50%;color:#fff;font-weight:700;flex:none}.avatar.group{background:#6b7280;font-size:14px}.toolbar{display:flex;align-items:center;justify-content:space-between;padding:12px 16px 4px}.toolbar h2{margin:0;font-size:16px}.chats{list-style:none;margin:0;padding:0 8px}.chat-row{display:flex;align-items:center;gap:12px;padding:10px 8px;border-radius:12px}.chat-row:hover{background:var(--bg)}.chat-main{flex:1;display:flex;flex-direction:column;min-width:0}.chat-title{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-last{color:var(--muted);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-row.unread .chat-title,.chat-row.unread .chat-last{color:var(--ink);font-weight:700}.chat-meta{display:flex;flex-direction:column;align-items:flex-end;gap:4px}.time{font-size:11px;color:var(--muted)}.unread-badge{background:var(--accent);color:#fff;font-size:11px;font-weight:700;min-width:20px;padding:1px 6px;border-radius:999px;text-align:center}.sentinel{list-style:none;text-align:center;color:var(--muted);font-size:12px;padding:12px;min-height:12px}.chat-page{height:100vh;height:100dvh;min-height:0}.messages{flex:1;overflow-y:auto;display:flex;flex-direction:column-reverse;gap:2px;padding:12px 12px 8px;background:#f9fafb}.bubble-row{display:flex;align-items:flex-end;gap:6px}.bubble-row.mine{justify-content:flex-end}.bubble-avatar{width:28px;flex:none}.bubble-wrap{display:flex;flex-direction:column;max-width:75%}.bubble-row.mine .bubble-wrap{align-items:flex-end}.bubble-sender{font-size:11px;color:var(--muted);margin:6px 0 2px 4px}.bubble{padding:7px 11px;border-radius:16px;background:#fff;border:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:flex-end;gap:4px 10px}.bubble-row.mine .bubble{background:var(--mine);color:#fff;border-color:var(--mine)}.bubble.failed{background:#fee2e2!important;color:#7f1d1d!important;border-color:#fecaca!important}.bubble-text{white-space:pre-wrap;word-break:break-word}.bubble-meta{font-size:10px;opacity:.8;margin-left:auto;white-space:nowrap;display:flex;gap:6px}.delivery.seen{color:#bbf7d0;font-weight:700}.delivery.partly-seen{color:#dbeafe}.delivery.queued{color:#fde68a}.failed-actions{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--bad);margin-top:3px}.failed-actions button{padding:3px 10px;font-size:12px}.composer{display:flex;gap:8px;padding:10px 12px calc(10px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:#fff}.composer textarea{flex:1;resize:none;padding:10px 12px;border:1px solid var(--line);border-radius:18px;font:inherit;font-size:16px;max-height:120px}.dialog-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000059;display:flex;align-items:center;justify-content:center;z-index:10}.dialog{background:#fff;border-radius:14px;padding:18px;width:min(420px,92vw);max-height:80vh;overflow:auto}.dialog h3{margin:0 0 6px}.pick{list-style:none;padding:0;margin:8px 0}.pick label{display:flex;align-items:center;gap:10px;padding:6px 4px}.group-title{width:100%;margin:6px 0}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:10px}