:root{--bg:#f4f6f8;--panel:#fff;--sidebar:#f0f3f6;--border:#dfe4ea;--text:#1f2a37;--muted:#6b7684;--accent:#0a84d6;--accent-dark:#0668ab;--unread:#e5484d;--hover:#e6ecf2;--active:#d6e8f7;--mine:#eaf4fd;color:var(--text);font-family:Segoe UI,system-ui,-apple-system,Roboto,sans-serif;font-size:14px}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#14181d;--panel:#1b2027;--sidebar:#171c22;--border:#2b333d;--text:#e6eaf0;--muted:#98a2b3;--hover:#242b34;--active:#1f3a52;--mine:#1e2f3f}}:root[data-theme=dark]{--bg:#14181d;--panel:#1b2027;--sidebar:#171c22;--border:#2b333d;--text:#e6eaf0;--muted:#98a2b3;--hover:#242b34;--active:#1f3a52;--mine:#1e2f3f}*{box-sizing:border-box}html,body,#root{background:var(--bg);height:100%;margin:0}button{font:inherit;cursor:pointer}input,textarea{font:inherit;color:inherit}.login-page{place-items:center;height:100%;padding:16px;display:grid}.login-card{background:var(--panel);border:1px solid var(--border);border-radius:12px;flex-direction:column;gap:14px;width:min(380px,100%);padding:32px;display:flex;box-shadow:0 8px 30px #0000000f}.login-logo{letter-spacing:.08em;color:var(--accent);text-align:center;font-size:22px;font-weight:700}.login-sub{text-align:center;color:var(--muted);margin:-8px 0 4px}.login-card label{color:var(--muted);flex-direction:column;gap:4px;font-size:13px;display:flex}.login-card input{border:1px solid var(--border);background:var(--bg);border-radius:8px;padding:10px 12px}.login-card button{background:var(--accent);color:#fff;border:0;border-radius:8px;padding:10px;font-weight:600}.login-card button:disabled{opacity:.6}.login-error{color:var(--unread);font-size:13px}.login-hint{color:var(--muted);text-align:center;margin:0;font-size:12px}.layout{grid-template-columns:280px 1fr;height:100%;display:grid;position:relative}.offline{color:#fff;text-align:center;z-index:5;background:#b45309;padding:4px;font-size:13px;position:absolute;top:0;left:0;right:0}.sidebar{background:var(--sidebar);border-right:1px solid var(--border);flex-direction:column;gap:10px;padding:10px;display:flex;overflow-y:auto}.me{align-items:center;gap:10px;padding:4px;display:flex}.me-name{text-overflow:ellipsis;white-space:nowrap;flex:1;font-weight:600;overflow:hidden}.search{border:1px solid var(--border);background:var(--panel);border-radius:8px;padding:8px 10px}.sidebar section h3{text-transform:uppercase;letter-spacing:.06em;color:var(--muted);justify-content:space-between;align-items:center;margin:6px 4px 4px;font-size:11px;display:flex}.room-row{text-align:left;width:100%;color:var(--text);background:0 0;border:0;border-radius:8px;align-items:center;gap:10px;padding:7px 8px;display:flex}.room-row:hover{background:var(--hover)}.room-row.active{background:var(--active)}.room-row.unread .room-name{font-weight:700}.room-name{text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.badge{background:var(--unread);color:#fff;border-radius:10px;padding:1px 7px;font-size:11px;font-weight:700}.invite-row{align-items:center;gap:8px;padding:6px 8px;display:flex}.invite-row button{background:var(--accent);color:#fff;border:0;border-radius:6px;padding:4px 10px}.empty{color:var(--muted);margin:4px 8px;font-size:13px}.empty.center{text-align:center;margin-top:40px}.icon-btn{color:var(--muted);background:0 0;border:0;border-radius:6px;padding:2px 6px;font-size:16px}.icon-btn:hover{background:var(--hover);color:var(--text)}.avatar{color:#fff;border-radius:8px;flex:none;place-items:center;width:32px;height:32px;font-size:12px;font-weight:700;display:inline-grid}.avatar.round{border-radius:50%}.avatar.spacer{background:0 0;height:4px}.chat{background:var(--panel);flex-direction:column;min-width:0;height:100%;display:flex}.empty-chat{color:var(--muted);place-items:center;display:grid}.chat-header{border-bottom:1px solid var(--border);align-items:baseline;gap:10px;padding:12px 18px;display:flex}.chat-title{font-size:16px;font-weight:700}.chat-members{color:var(--muted);font-size:12px}.messages{flex:1;padding:12px 18px;overflow-y:auto}.day-sep{text-align:center;color:var(--muted);margin:14px 0 8px;font-size:12px}.msg{border-radius:8px;gap:10px;padding:4px 8px;display:flex}.msg:hover{background:var(--bg)}.msg.compact{padding-top:0}.msg.pending{opacity:.6}.msg-body{flex:1;min-width:0}.msg-meta{align-items:baseline;gap:8px;margin-bottom:2px;display:flex}.msg-sender{font-weight:600}.msg.mine .msg-sender{color:var(--accent-dark)}.msg-time{color:var(--muted);font-size:11px}.text{white-space:pre-wrap;word-break:break-word;line-height:1.4}.muted{color:var(--muted)}.msg-image{cursor:zoom-in;border-radius:8px;max-width:420px;max-height:320px;margin-top:4px;display:block}.msg-image.placeholder{background:var(--hover);width:200px;height:120px;color:var(--muted);place-items:center;font-size:12px;display:grid}.lightbox{z-index:20;cursor:zoom-out;background:#000000d9;place-items:center;display:grid;position:fixed;inset:0}.lightbox img{max-width:95vw;max-height:95vh}.file-link{border:1px solid var(--border);background:var(--bg);color:var(--text);border-radius:8px;align-items:center;gap:10px;max-width:100%;margin-top:4px;padding:8px 12px;display:inline-flex}.file-link:hover{border-color:var(--accent)}.file-icon{color:#fff;text-align:center;background:#64748b;border-radius:4px;min-width:34px;padding:4px 5px;font-size:10px;font-weight:700}.file-link.pdf .file-icon{background:#dc2626}.file-link.xls .file-icon{background:#15803d}.file-link.doc .file-icon{background:#1d4ed8}.file-name{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.file-size{color:var(--muted);font-size:12px}.composer{border-top:1px solid var(--border);align-items:flex-end;gap:8px;padding:10px 14px;display:flex}.composer textarea{resize:none;border:1px solid var(--border);background:var(--bg);border-radius:10px;flex:1;max-height:160px;padding:9px 12px;line-height:1.4}.composer textarea:focus{outline:2px solid var(--accent);border-color:#0000}.composer .send{background:var(--accent);color:#fff;border:0;border-radius:10px;padding:9px 16px;font-weight:600}.composer .send:disabled{opacity:.5;cursor:default}.modal-bg{z-index:10;background:#00000059;place-items:center;padding:16px;display:grid;position:fixed;inset:0}.modal{background:var(--panel);border-radius:12px;flex-direction:column;gap:10px;width:min(440px,100%);max-height:90vh;padding:20px;display:flex}.modal h2{margin:0 0 4px;font-size:17px}.modal input{border:1px solid var(--border);background:var(--bg);border-radius:8px;padding:9px 12px}.hits{flex-direction:column;max-height:300px;display:flex;overflow-y:auto}.hit{text-align:left;color:var(--text);background:0 0;border:0;border-radius:8px;align-items:center;gap:10px;padding:7px 8px;display:flex}.hit:hover{background:var(--hover)}.hit.sel{background:var(--active)}.hit small{color:var(--muted);margin-left:6px}.chips{flex-wrap:wrap;gap:6px;display:flex}.chip{background:var(--active);cursor:pointer;border-radius:12px;padding:3px 10px;font-size:13px}.modal-actions{justify-content:flex-end;gap:8px;margin-top:4px;display:flex}.modal-actions button{border:1px solid var(--border);background:var(--bg);color:var(--text);border-radius:8px;padding:8px 14px}.modal-actions .primary{background:var(--accent);color:#fff;border-color:#0000}.modal-actions .primary:disabled{opacity:.5}@media (max-width:700px){.layout{grid-template-columns:1fr}.sidebar{display:none}}.modal.wide{width:min(760px,100%)}.modal label{color:var(--muted);flex-direction:column;gap:4px;font-size:13px;display:flex}.modal label.row{flex-direction:row;align-items:center;gap:8px}.modal select{border:1px solid var(--border);background:var(--bg);color:var(--text);border-radius:8px;padding:9px 12px}.row{align-items:center;gap:8px;display:flex}.row.wrap{flex-wrap:wrap}.row>input{flex:1}.grow{flex:1;min-width:0}.grid2{grid-template-columns:1fr 1fr;gap:10px;display:grid}@media (max-width:600px){.grid2{grid-template-columns:1fr}}.box{border:1px solid var(--border);border-radius:8px;flex-direction:column;gap:8px;padding:10px 12px;display:flex}.box summary{cursor:pointer;font-weight:600}.modal button{border:1px solid var(--border);background:var(--bg);color:var(--text);border-radius:8px;padding:7px 12px}.modal button.primary{background:var(--accent);color:#fff;border-color:#0000}.modal button.danger{background:var(--unread);color:#fff;border-color:#0000}.modal button:disabled{opacity:.5;cursor:default}.ok{color:#15803d;-webkit-user-select:all;user-select:all;background:#15803d1a;border-radius:6px;padding:6px 10px;font-size:13px}.hint{color:var(--muted);margin:0;font-size:12px}.hits.tall{max-height:260px}.st{color:var(--muted)}.st.zablokowany{color:#b45309}.st.dezaktywowany{color:var(--unread)}.avatar.big{width:48px;height:48px;font-size:16px}.group-name{color:var(--muted);margin:6px 8px 2px;font-size:11px;font-weight:600}