/* Botão flutuante + janela de instruções de instalação */
.pwa-fab{position:fixed;right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:9998;display:none;align-items:center;gap:8px;background:#B08A2E;color:#fff;border:0;border-radius:999px;padding:.7rem 1.1rem;font:600 .9rem/1 system-ui,-apple-system,'Segoe UI',sans-serif;box-shadow:0 10px 25px -5px rgba(140,106,30,.55);cursor:pointer}
.pwa-fab.on{display:inline-flex}
.pwa-fab .x{margin-left:4px;opacity:.8;padding:0 2px}
.pwa-btn{display:none;align-items:center;justify-content:center;gap:8px;background:#B08A2E;color:#fff;border:0;border-radius:999px;padding:.95rem 1.6rem;font:600 1rem system-ui,-apple-system,'Segoe UI',sans-serif;cursor:pointer;box-shadow:0 10px 25px -8px rgba(140,106,30,.6)}
.pwa-btn.on{display:inline-flex}
.pwa-modal{position:fixed;inset:0;z-index:9999;display:none;align-items:flex-end;justify-content:center;background:rgba(17,17,17,.55);padding:0}
.pwa-modal.on{display:flex}
.pwa-sheet{background:#fff;width:100%;max-width:460px;border-radius:24px 24px 0 0;padding:1.6rem 1.4rem calc(1.4rem + env(safe-area-inset-bottom,0px));font-family:system-ui,-apple-system,'Segoe UI',sans-serif;color:#111111}
@media(min-width:600px){.pwa-modal{align-items:center}.pwa-sheet{border-radius:24px}}
.pwa-sheet h3{color:#1A1A1A;font-size:1.25rem;margin-bottom:.6rem}
.pwa-sheet ol{margin:.6rem 0 1rem 1.2rem;line-height:1.7;color:#5b4a4a}
.pwa-sheet .fechar{width:100%;border:0;border-radius:999px;background:#B08A2E;color:#fff;padding:.8rem;font-weight:600;font-size:1rem;cursor:pointer}
.pwa-toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:#2e7d32;color:#fff;padding:.7rem 1.2rem;border-radius:999px;z-index:10000;font:600 .9rem system-ui,sans-serif}