:root{--font:-apple-system, BlinkMacSystemFont, "Roboto", system-ui, "Segoe UI", Helvetica, Arial, sans-serif;--bg-primary:#fff;--bg-secondary:#f5f7fa;--bg-surface:#edeef2;--bg-tertiary:#0909090d;--text-primary:#060708;--text-secondary:#060708ad;--text-tertiary:#06070885;--accent:#007aff;--accent-hover:#479fff;--accent-fade:#007aff29;--negative:#ff303c;--negative-fade:#ff303c29;--positive:#1abe43;--input-bg:#09090914;--separator:#0000000f;--chat-bg-1:#99d5d7;--chat-bg-2:#80bcff;--chat-pattern:#20509d2e;--bubble-in:#fff;--bubble-out:#d7ecff;--radius-m:12px;--radius-l:16px;--sidebar-width:360px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:var(--font);color:var(--text-primary);background:var(--bg-surface);-webkit-font-smoothing:antialiased;font-size:15px;line-height:1.4}button,input,textarea{font:inherit;color:inherit}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.button{border-radius:var(--radius-m);cursor:pointer;border:0;height:44px;padding:0 20px;font-weight:500;transition:background .15s}.button--primary{background:var(--accent);color:#fff}.button--primary:hover:not(:disabled){background:var(--accent-hover)}.button:disabled{opacity:.6;cursor:default}.icon-button{width:40px;height:40px;color:var(--text-secondary);cursor:pointer;background:0 0;border:0;border-radius:50%;justify-content:center;align-items:center;transition:background .15s,color .15s;display:inline-flex}.icon-button:hover{background:var(--bg-tertiary);color:var(--text-primary)}.icon-button[aria-expanded=true]{background:var(--accent-fade);color:var(--accent)}.field{display:block}.field__label{color:var(--text-secondary);margin-bottom:6px;font-size:13px;display:block}.field__input{border-radius:var(--radius-m);background:var(--input-bg);border:1px solid #0000;outline:none;width:100%;height:44px;padding:0 14px;transition:border-color .15s,background .15s}.field__input:focus{border-color:var(--accent);background:var(--bg-primary)}.field__input::placeholder{color:var(--text-tertiary)}.avatar{color:#fff;-webkit-user-select:none;user-select:none;border-radius:50%;flex:none;justify-content:center;align-items:center;font-weight:600;display:flex}.login{background:radial-gradient(circle at 20% 20%, var(--chat-pattern) 0 2px, transparent 3px) 0 0 / 56px 56px, radial-gradient(circle at 70% 60%, var(--chat-pattern) 0 1.5px, transparent 2.5px) 28px 28px / 56px 56px, linear-gradient(160deg, var(--chat-bg-1), var(--chat-bg-2));justify-content:center;align-items:center;min-height:100%;padding:24px 16px;display:flex}.login__card{background:var(--bg-primary);border-radius:24px;flex-direction:column;gap:16px;width:100%;max-width:420px;padding:36px 32px 32px;display:flex;box-shadow:0 24px 64px -24px #20509d66}.login__logo{justify-content:center;margin-bottom:4px;display:flex}.login__title{text-align:center;margin:0;font-size:24px;font-weight:600;line-height:28px}.login__hint{text-align:center;color:var(--text-secondary);margin:-8px 0 4px;font-size:14px}.login__advanced summary{cursor:pointer;color:var(--text-secondary);margin-bottom:8px;font-size:13px}.login__error{border-radius:var(--radius-m);background:var(--negative-fade);color:var(--negative);padding:10px 14px;font-size:14px}.login__submit{height:48px;margin-top:4px}.app{grid-template-columns:var(--sidebar-width) 1fr;background:var(--bg-primary);height:100%;display:grid}.sidebar{border-right:1px solid var(--separator);background:var(--bg-primary);flex-direction:column;min-height:0;display:flex}.sidebar__header{border-bottom:1px solid var(--separator);justify-content:space-between;align-items:center;height:64px;padding:0 8px 0 20px;display:flex}.sidebar__title{flex-direction:column;font-size:20px;font-weight:600;line-height:24px;display:flex}.sidebar__instance{color:var(--text-tertiary);font-size:12px;font-weight:400;line-height:14px}.sidebar__actions{gap:2px;display:flex}.sidebar__banner{border-radius:var(--radius-m);background:var(--accent-fade);color:var(--text-primary);margin:8px 12px 0;padding:10px 14px;font-size:13px}.new-chat{border-bottom:1px solid var(--separator);background:var(--bg-secondary);grid-template-columns:1fr auto;gap:8px;padding:12px;display:grid}.new-chat__error{color:var(--negative);grid-column:1/-1;font-size:13px}.chat-list{flex:1;margin:0;padding:8px;list-style:none;overflow-y:auto}.chat-list__empty{text-align:center;color:var(--text-secondary);padding:32px 20px;font-size:14px}.chat-list__empty svg{vertical-align:middle;width:18px;height:18px}.chat-item{text-align:left;border-radius:var(--radius-l);cursor:pointer;background:0 0;border:0;align-items:center;gap:12px;width:100%;padding:10px 12px;transition:background .15s;display:flex}.chat-item:hover{background:var(--bg-secondary)}.chat-item--active,.chat-item--active:hover{background:var(--accent);color:#fff}.chat-item__body{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.chat-item__row{justify-content:space-between;align-items:center;gap:8px;display:flex}.chat-item__name{white-space:nowrap;text-overflow:ellipsis;font-weight:500;overflow:hidden}.chat-item__time,.chat-item__preview{color:var(--text-secondary);font-size:13px}.chat-item--active .chat-item__time,.chat-item--active .chat-item__preview{color:#ffffffd6}.chat-item__preview{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.chat-item__badge{background:var(--accent);color:#fff;border-radius:10px;flex:none;justify-content:center;align-items:center;min-width:20px;height:20px;padding:0 6px;font-size:12px;font-weight:500;display:inline-flex}.chat-item--active .chat-item__badge{color:var(--accent);background:#fff}.chat{background:radial-gradient(circle at 20% 20%, var(--chat-pattern) 0 2px, transparent 3px) 0 0 / 56px 56px, radial-gradient(circle at 70% 60%, var(--chat-pattern) 0 1.5px, transparent 2.5px) 28px 28px / 56px 56px, linear-gradient(160deg, var(--chat-bg-1), var(--chat-bg-2));flex-direction:column;min-width:0;min-height:0;display:flex}.chat--placeholder{justify-content:center;align-items:center}.chat__placeholder{color:var(--text-secondary);background:#ffffffb8;border-radius:999px;padding:8px 16px;font-size:14px}.chat__header{background:var(--bg-primary);border-bottom:1px solid var(--separator);align-items:center;gap:12px;height:64px;padding:0 16px;display:flex}.chat__back{margin-left:-8px;display:none}.chat__peer{min-width:0}.chat__name{white-space:nowrap;text-overflow:ellipsis;font-weight:600;overflow:hidden}.chat__subtitle{color:var(--text-secondary);font-size:13px}.chat__messages{flex-direction:column;flex:1;gap:4px;padding:16px 16px 8px;display:flex;overflow-y:auto}.chat__empty{color:var(--text-secondary);background:#ffffffb8;border-radius:999px;margin:auto;padding:8px 16px;font-size:14px}.chat__group{flex-direction:column;display:flex}.chat__day{color:var(--text-secondary);background:#ffffffb8;border-radius:999px;align-self:center;margin:12px 0 8px;padding:4px 12px;font-size:13px}.bubble{border-radius:var(--radius-l);max-width:min(70%,520px);padding:8px 12px 6px;font-size:15px;line-height:20px;position:relative;box-shadow:0 1px 1px #0000000d}.bubble--in{background:var(--bubble-in);border-bottom-left-radius:6px;align-self:flex-start}.bubble--out{background:var(--bubble-out);border-bottom-right-radius:6px;align-self:flex-end}.bubble--error{outline:1px solid var(--negative)}.bubble__text{white-space:pre-wrap;overflow-wrap:anywhere}.bubble__meta{color:var(--text-tertiary);justify-content:flex-end;align-items:center;gap:4px;margin-top:2px;font-size:11px;line-height:14px;display:flex}.bubble__read{color:var(--accent);display:inline-flex}.bubble--error .bubble__meta{color:var(--negative)}.bubble__error{color:var(--negative);margin-top:4px;font-size:12px}.composer{background:var(--bg-primary);border-top:1px solid var(--separator);align-items:flex-end;gap:8px;padding:10px 12px;display:flex}.composer__input{background:var(--input-bg);resize:none;field-sizing:content;border:1px solid #0000;border-radius:22px;outline:none;flex:1;min-height:44px;max-height:160px;padding:11px 14px}.composer__input:focus{border-color:var(--accent);background:var(--bg-primary)}.composer__send{background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:50%;flex:none;justify-content:center;align-items:center;width:44px;height:44px;transition:background .15s,opacity .15s;display:inline-flex}.composer__send:hover:not(:disabled){background:var(--accent-hover)}.composer__send:disabled{opacity:.4;cursor:default}@media (width<=720px){.app{grid-template-columns:1fr}.app--chat-open .sidebar,.app:not(.app--chat-open) .chat{display:none}.chat__back{display:inline-flex}.bubble{max-width:85%}}