:root{color:#152033;font-synthesis:none;background:#eef2f6;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif}*{box-sizing:border-box}html,body,#app{height:100%;min-height:100%;margin:0}button,textarea{font:inherit}.chat-page{background:linear-gradient(145deg,#edf4ff 0,#f5f7fa 45%,#eef2f6 100%);place-items:center;min-height:100dvh;padding:20px;display:grid}.chat-shell{background:#fff;border:1px solid #e3e8ef;border-radius:24px;grid-template-rows:auto auto 1fr auto;width:min(760px,100%);height:min(860px,100dvh - 40px);min-height:560px;display:grid;overflow:hidden;box-shadow:0 24px 70px #1e293b1f}.chat-header{background:#fffffff5;border-bottom:1px solid #edf0f4;align-items:center;gap:12px;min-height:76px;padding:13px 18px;display:flex}.avatar{color:#1d62d8;background:#e9f2ff;border-radius:50%;place-items:center;width:46px;height:46px;font-weight:800;display:grid}.header-copy{flex:1;min-width:0}.notify-toggle{color:#2457a7;cursor:pointer;white-space:nowrap;background:#f8fbff;border:1px solid #d7e2f3;border-radius:10px;align-items:center;gap:5px;padding:7px 10px;font-size:12px;font-weight:650;display:inline-flex}.notify-toggle:disabled{opacity:.55;cursor:not-allowed}.header-copy h1{margin:0 0 4px;font-size:17px}.header-copy p{color:#6b7280;align-items:center;gap:6px;margin:0;font-size:12px;display:flex}.header-copy p.error{color:#b42318}.presence{background:#98a2b3;border-radius:50%;width:7px;height:7px}.presence.online{background:#22a35a;box-shadow:0 0 0 3px #22a35a1f}.presence.pending{background:#f59e0b}.top-alert{color:#9a3412;background:#fff7ed;border-bottom:1px solid #fed7aa;padding:9px 16px;font-size:13px}.message-list{scroll-behavior:smooth;background:#f7f9fb;padding:22px 18px 26px;overflow-y:auto}.empty-state{text-align:center;color:#8a94a3;flex-direction:column;justify-content:center;align-items:center;gap:6px;height:100%;min-height:260px;display:flex}.empty-state strong{color:#3d4755;font-size:16px}.empty-state span{font-size:13px}.empty-icon{background:#fff;border:1px solid #e8ecf1;border-radius:18px;place-items:center;width:50px;height:50px;margin-bottom:5px;display:grid}.message-row{margin:8px 0;display:flex}.message-row.mine{justify-content:flex-end}.message-row.theirs{justify-content:flex-start}.bubble{border-radius:17px;max-width:min(78%,560px);padding:10px 12px 7px;box-shadow:0 1px 1px #0f172a08}.mine .bubble{color:#fff;background:#2563eb;border-bottom-right-radius:5px}.theirs .bubble{color:#1f2937;background:#fff;border:1px solid #e5e9ef;border-bottom-left-radius:5px}.bubble p{white-space:pre-wrap;overflow-wrap:anywhere;margin:0;font-size:15px;line-height:1.48}.meta{opacity:.78;justify-content:flex-end;align-items:center;gap:7px;min-height:16px;margin-top:5px;font-size:10.5px;display:flex}.theirs .meta{color:#7b8492}.retry{color:inherit;cursor:pointer;background:0 0;border:0;padding:0;font-size:10.5px;text-decoration:underline}.composer-wrap{background:#fff;border-top:1px solid #e8ecf1;padding:10px 13px 9px}.composer{align-items:flex-end;gap:9px;display:flex}.composer textarea{resize:none;color:#18212f;background:#f8fafc;border:1px solid #dce2e9;border-radius:14px;outline:none;flex:1;min-height:44px;max-height:130px;padding:11px 13px;line-height:1.45;display:block}.composer textarea:focus{background:#fff;border-color:#9dbcf5;box-shadow:0 0 0 3px #2563eb14}.send{color:#fff;cursor:pointer;background:#2563eb;border:0;border-radius:14px;place-items:center;width:44px;height:44px;display:grid}.send:disabled{cursor:not-allowed;background:#cbd5e1}.send span{font-size:18px;transform:rotate(-18deg)translate(1px,-1px)}.composer-note{color:#98a2b3;justify-content:flex-end;min-height:17px;margin-top:5px;padding:0 5px;font-size:10.5px;display:flex}@media (width<=640px){.chat-page{background:#fff;padding:0;display:block}.chat-shell{width:100%;height:100dvh;min-height:100dvh;box-shadow:none;border:0;border-radius:0}.chat-header{min-height:64px;padding:9px 12px}.avatar{width:40px;height:40px}.message-list{padding:16px 11px 20px}.bubble{max-width:84%;font-size:14px}.composer-wrap{padding:8px 9px calc(8px + env(safe-area-inset-bottom))}.composer-note{display:none}}.media-tools{align-items:center;gap:7px;min-height:32px;margin-bottom:7px;display:flex}.tool{color:#475467;cursor:pointer;background:#fff;border:1px solid #dce2e9;border-radius:10px;align-items:center;gap:4px;padding:6px 9px;font-size:12px;display:inline-flex}.tool input{display:none}.tool:disabled,.tool.disabled{opacity:.5;cursor:not-allowed}.tool.recording{color:#b42318;background:#fff1f0;border-color:#f04438}.uploading{color:#667085;margin-left:auto;font-size:11px}.media-bubble{min-width:160px}.chat-image{object-fit:contain;background:#fff;border-radius:12px;max-width:min(360px,65vw);max-height:360px;display:block}.chat-audio{width:min(320px,65vw);height:42px;display:block}.file-card{min-width:210px;color:inherit;background:#ffffff24;border-radius:11px;align-items:center;gap:10px;padding:9px;text-decoration:none;display:flex}.theirs .file-card{color:#344054;background:#f8fafc;border:1px solid #eef0f3}.file-card span:last-child{min-width:0;display:grid}.file-card strong{text-overflow:ellipsis;white-space:nowrap;max-width:260px;font-size:13px;overflow:hidden}.file-card small{opacity:.72;margin-top:3px;font-size:10px}.file-icon{font-size:22px}.media-pending{opacity:.82;font-size:13px}.mine .chat-audio{filter:none}@media (width<=640px){.media-tools{gap:5px}.tool{padding:6px 8px}.tool span{display:none}.chat-image{max-width:70vw;max-height:280px}.chat-audio{width:68vw}.file-card{min-width:190px}.media-bubble{max-width:88%}.notify-toggle{padding:7px 8px}.notify-toggle span{display:none}}.peer-state{color:#667085;margin-top:3px;font-size:11px;display:block}.peer-state.typing{color:#2563eb;font-weight:650}