/* PWA: ventana de instalación y pantalla sin conexión */
.pwa-ui{position:fixed;z-index:9999;background:#fff;color:#1b1b1f;border:1px solid #d5d8dd;box-shadow:0 8px 30px rgba(0,0,0,.28);display:flex;gap:14px;align-items:center;font-family:inherit;font-size:1rem;line-height:1.35}
.pwa-bar{left:0;right:0;bottom:0;padding:12px 16px;border-width:1px 0 0;flex-wrap:wrap}
.pwa-window{left:50%;top:50%;transform:translate(-50%,-50%);width:min(92vw,420px);padding:22px;border-radius:16px;flex-direction:column;text-align:center;gap:12px;box-shadow:0 0 0 100vmax rgba(0,0,0,.45),0 8px 30px rgba(0,0,0,.4)}

.pwa-ic{border-radius:12px;flex:none;object-fit:contain;background:#fff}
.pwa-tx{display:flex;flex-direction:column;gap:3px;flex:1;min-width:200px}
.pwa-tx strong{font-size:1.1rem}
.pwa-tx span{color:#4a4d55}
.pwa-ac{display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:center}
.pwa-btn{display:inline-block;font:inherit;font-weight:700;cursor:pointer;border:0;border-radius:999px;padding:11px 24px;background:var(--primary,#0b5fa5);color:#fff;text-decoration:none}
.pwa-no{font:inherit;cursor:pointer;background:none;border:0;color:#4a4d55;text-decoration:underline;padding:8px}
.pwa-btn:focus-visible,.pwa-no:focus-visible{outline:3px solid #1b1b1f;outline-offset:2px}
.pwa-off{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:#f6f7f9;color:#1b1b1f;line-height:1.5}
.pwa-off main{max-width:560px;margin:0 auto;padding:48px 20px;text-align:center}
.pwa-off-ico img{border-radius:18px}
.pwa-off h1{margin:.4em 0 .2em}
.pwa-off section{text-align:left;margin-top:32px;border-top:1px solid #d5d8dd;padding-top:12px}
.pwa-off ul{list-style:none;margin:0;padding:0}
.pwa-off li{border-bottom:1px solid #e3e5e8}
.pwa-off li a{display:block;padding:12px 2px;color:#0b5fa5;font-size:1.1rem}
@media (prefers-color-scheme:dark){.pwa-ui{background:#1d1f24;color:#f1f2f4;border-color:#3a3d45}.pwa-tx span,.pwa-no{color:#b9bdc6}.pwa-off{background:#111317;color:#f1f2f4}.pwa-off li a{color:#7db7ee}}