:root{--bg: #eef0f5;--panel: #ffffff;--panel-alt: #f6f7fb;--border: #e3e6ee;--text: #1c1d22;--muted: #7a7f8c;--accent: #5b5ff5;--accent-2: #8a4cf7;--accent-soft: #ecebff;--bubble-in: #ffffff;--bubble-out: linear-gradient(135deg, #5b5ff5, #8a4cf7);--bubble-out-text: #ffffff;--chat-bg: #e9ecf4;--danger: #e5484d;--ok: #2fb36b;--radius: 14px;color-scheme:light}@media (prefers-color-scheme: dark){:root{--bg: #111216;--panel: #1a1b21;--panel-alt: #22232b;--border: #2c2e37;--text: #eceef3;--muted: #8d92a0;--accent-soft: #2a2950;--bubble-in: #262832;--chat-bg: #15161b;color-scheme:dark}}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font:15px/1.4 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}button,input,textarea{font:inherit;color:inherit}.btn{border:0;border-radius:10px;padding:9px 14px;cursor:pointer;background:transparent;transition:background .15s,opacity .15s}.btn:disabled{opacity:.5;cursor:default}.btn--primary{background:var(--accent);color:#fff;font-weight:600}.btn--primary:hover:not(:disabled){background:var(--accent-2)}.btn--ghost{color:var(--muted)}.btn--ghost:hover{background:var(--panel-alt);color:var(--text)}.btn--send{width:42px;height:42px;border-radius:50%;flex:none;background:var(--bubble-out);color:#fff;font-size:18px}.login{min-height:100%;display:grid;place-items:center;padding:16px}.login__card{width:100%;max-width:380px;display:flex;flex-direction:column;gap:14px;background:var(--panel);border-radius:20px;padding:28px;box-shadow:0 10px 40px #14143c14}.login__title{margin:0;font-size:22px}.login__hint{margin:-8px 0 4px;color:var(--muted);font-size:14px}.login__error{margin:0;color:var(--danger);font-size:14px}.segmented{display:flex;background:var(--panel-alt);border-radius:12px;padding:4px;gap:4px}.segmented__item{flex:1;border:0;background:transparent;border-radius:9px;padding:8px;cursor:pointer;color:var(--muted)}.segmented__item.is-active{background:var(--panel);color:var(--accent);font-weight:600;box-shadow:0 1px 3px #00000014}.field{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}.field input,.new-chat input{border:1px solid var(--border);background:var(--panel-alt);border-radius:10px;padding:10px 12px;font-size:15px;outline:none}.field input:focus,.new-chat input:focus{border-color:var(--accent)}.layout{height:100%;display:grid;grid-template-columns:340px 1fr}.sidebar{display:flex;flex-direction:column;background:var(--panel);border-right:1px solid var(--border);min-height:0}.sidebar__header{display:flex;align-items:center;justify-content:space-between;padding:16px}.sidebar__title{font-weight:700;font-size:18px}.status{font-size:12px;color:var(--muted)}.status--online{color:var(--ok)}.status--error{color:var(--danger)}.new-chat__open{margin:0 16px 12px}.new-chat{display:flex;flex-wrap:wrap;gap:8px;padding:0 16px 12px}.new-chat input{flex:1 1 100%}.new-chat .btn{flex:1}.new-chat__error{flex-basis:100%;margin:0;color:var(--danger);font-size:13px}.chat-list{list-style:none;margin:0;padding:0 8px 8px;overflow-y:auto;flex:1}.chat-list__empty{color:var(--muted);padding:24px 12px;text-align:center;font-size:14px}.chat-item{width:100%;display:flex;gap:12px;align-items:center;text-align:left;border:0;background:transparent;border-radius:12px;padding:10px;cursor:pointer}.chat-item:hover{background:var(--panel-alt)}.chat-item.is-active{background:var(--accent-soft)}.chat-item__body{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.chat-item__row{display:flex;justify-content:space-between;gap:8px;align-items:center}.chat-item__title{font-weight:600}.chat-item__time{font-size:12px;color:var(--muted);flex:none}.chat-item__preview{color:var(--muted);font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.badge{background:var(--accent);color:#fff;border-radius:999px;min-width:20px;padding:0 6px;font-size:12px;line-height:20px;text-align:center;flex:none}.avatar{width:44px;height:44px;border-radius:50%;flex:none;display:grid;place-items:center;background:var(--bubble-out);color:#fff;font-weight:700}.chat{display:flex;flex-direction:column;background:var(--chat-bg);min-height:0;min-width:0}.chat--empty{align-items:center;justify-content:center;color:var(--muted)}.chat__header{display:flex;align-items:center;gap:12px;padding:10px 16px;background:var(--panel);border-bottom:1px solid var(--border)}.chat__header .avatar{width:38px;height:38px;font-size:14px}.chat__title{font-weight:600}.chat__back{display:none;font-size:20px;padding:4px 10px}.chat__messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:6px}.chat__placeholder{margin:auto;color:var(--muted)}.bubble{max-width:min(75%,560px);padding:8px 12px 6px;border-radius:var(--radius);display:flex;flex-direction:column;box-shadow:0 1px 1px #0000000d}.bubble--in{align-self:flex-start;background:var(--bubble-in);border-bottom-left-radius:4px}.bubble--out{align-self:flex-end;background:var(--bubble-out);color:var(--bubble-out-text);border-bottom-right-radius:4px}.bubble--failed{opacity:.6;outline:2px solid var(--danger)}.bubble__text{white-space:pre-wrap;overflow-wrap:anywhere}.bubble__meta{align-self:flex-end;font-size:11px;opacity:.7;margin-top:2px}.composer{display:flex;gap:10px;align-items:flex-end;padding:12px 16px;background:var(--panel);border-top:1px solid var(--border)}.composer textarea{flex:1;resize:none;border:0;outline:none;background:var(--panel-alt);border-radius:20px;padding:11px 16px;max-height:140px;field-sizing:content}@media (max-width: 720px){.layout{grid-template-columns:1fr}.layout.has-active-chat .sidebar{display:none}.layout:not(.has-active-chat) .chat{display:none}.chat__back{display:inline-block}}