/* isfb – "did you find what you were looking for?" feedback button for the owner's project sites (27.10.2026).
   Served from /isfb/ (nginx snippets/instasite-fb.conf). Classes only – sites run style-src 'self' (no inline styles). */
.isfb,.isfb *{box-sizing:border-box}
.isfb{--fb-bg:#fff;--fb-fg:#0f172a;--fb-muted:#475569;--fb-line:#e2e8f0;--fb-acc:#4f46e5;--fb-acc-fg:#fff;--fb-soft:#eef2ff;
  position:fixed;z-index:2147483000;bottom:16px;inset-inline-start:16px;font:14px/1.5 system-ui,-apple-system,"Segoe UI",Arial,sans-serif;color:var(--fb-fg)}
@media (prefers-color-scheme:dark){.isfb{--fb-bg:#1e293b;--fb-fg:#f1f5f9;--fb-muted:#cbd5e1;--fb-line:#334155;--fb-acc:#818cf8;--fb-acc-fg:#0f172a;--fb-soft:#312e81}}
.isfb-fab{display:flex;align-items:center;gap:6px;height:40px;padding:0 14px;border-radius:999px;border:1px solid var(--fb-line);background:var(--fb-bg);color:var(--fb-fg);
  font:600 13.5px/1 system-ui,-apple-system,"Segoe UI",Arial,sans-serif;cursor:pointer;box-shadow:0 4px 14px rgba(15,23,42,.14);opacity:.92;transition:opacity .15s,transform .15s}
.isfb-fab:hover{opacity:1;transform:translateY(-1px)}
.isfb-fab:focus-visible,.isfb button:focus-visible,.isfb textarea:focus-visible,.isfb input:focus-visible{outline:3px solid var(--fb-acc);outline-offset:2px}
.isfb-ico{font-size:16px;line-height:1}
@media (max-width:640px){.isfb{bottom:12px;inset-inline-start:12px}.isfb-fab{width:44px;height:44px;padding:0;justify-content:center}.isfb-fab .isfb-lbl{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}}
.isfb-nudge{position:absolute;bottom:52px;inset-inline-start:0;width:max-content;max-width:min(260px,calc(100vw - 32px));background:var(--fb-acc);color:var(--fb-acc-fg);
  border-radius:12px;padding:9px 34px 9px 12px;padding-inline:12px 34px;font-weight:600;font-size:13.5px;box-shadow:0 6px 18px rgba(15,23,42,.22);cursor:pointer}
.isfb-nudge-x{position:absolute;top:4px;inset-inline-end:4px;width:26px;height:26px;border:0;border-radius:8px;background:transparent;color:inherit;font-size:16px;cursor:pointer}
.isfb-panel{position:absolute;bottom:52px;inset-inline-start:0;width:min(340px,calc(100vw - 24px));background:var(--fb-bg);color:var(--fb-fg);border:1px solid var(--fb-line);
  border-radius:16px;padding:16px;box-shadow:0 12px 34px rgba(15,23,42,.22)}
@media (max-width:640px){.isfb-panel{position:fixed;bottom:0;inset-inline:0;width:100%;border-radius:18px 18px 0 0;padding:18px 16px calc(18px + env(safe-area-inset-bottom,0px))}}
.isfb-h{font-size:16px;font-weight:800;margin:0 0 12px;padding-inline-end:30px}
.isfb-x{position:absolute;top:10px;inset-inline-end:10px;width:32px;height:32px;border:0;border-radius:10px;background:transparent;color:var(--fb-muted);font-size:20px;cursor:pointer}
.isfb-votes{display:flex;gap:10px}
.isfb-vote{flex:1;min-height:46px;border:1px solid var(--fb-line);border-radius:12px;background:var(--fb-bg);color:var(--fb-fg);font:600 15px/1 system-ui,sans-serif;cursor:pointer}
.isfb-vote:hover{border-color:var(--fb-acc);background:var(--fb-soft)}
.isfb-sub{color:var(--fb-muted);font-size:13px;margin:0 0 8px}
.isfb-chips{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 10px}
.isfb-chip{border:1px solid var(--fb-line);border-radius:999px;background:var(--fb-bg);color:var(--fb-fg);padding:6px 11px;font:13px/1.2 system-ui,sans-serif;cursor:pointer;min-height:34px}
.isfb-chip[aria-pressed=true]{background:var(--fb-acc);border-color:var(--fb-acc);color:var(--fb-acc-fg)}
.isfb textarea,.isfb input{width:100%;border:1px solid var(--fb-line);border-radius:10px;background:var(--fb-bg);color:var(--fb-fg);padding:9px 10px;font:14px/1.4 system-ui,sans-serif;margin:0 0 8px}
.isfb textarea{min-height:70px;resize:vertical}
.isfb-send{width:100%;min-height:44px;border:0;border-radius:12px;background:var(--fb-acc);color:var(--fb-acc-fg);font:700 15px/1 system-ui,sans-serif;cursor:pointer}
.isfb-send[disabled]{opacity:.6;cursor:default}
.isfb-note{color:var(--fb-muted);font-size:11.5px;margin:8px 0 0}
.isfb-done{font-size:15px;font-weight:700;margin:4px 0}
.isfb[hidden],.isfb [hidden]{display:none!important}
@media (prefers-reduced-motion:reduce){.isfb-fab{transition:none}}
@media (max-width:640px){.isfb-open .isfb-fab{display:none}}   /* the sheet has its own × */
@media print{.isfb{display:none!important}}