.pwa-install-button{position:fixed;right:18px;bottom:18px;z-index:1200;display:flex;align-items:center;gap:9px;border:0;border-radius:14px;padding:13px 17px;background:#007f73;color:#fff;font:700 14px/1.2 Arial,sans-serif;box-shadow:0 12px 30px rgba(0,31,43,.24);cursor:pointer}.pwa-install-button[hidden]{display:none}.pwa-install-help{position:fixed;inset:0;z-index:1300;display:grid;place-items:center;padding:20px;background:rgba(4,22,30,.72)}.pwa-install-help[hidden]{display:none}.pwa-install-help>div{width:min(440px,100%);padding:24px;border-radius:18px;background:#fff;color:#102535;box-shadow:0 24px 60px rgba(0,0,0,.3)}.pwa-install-help h2{margin:0 0 10px}.pwa-install-help p{line-height:1.55}.pwa-install-help button,.offline-page button,.offline-page a{display:inline-block;border:0;border-radius:10px;padding:12px 18px;background:#007f73;color:#fff;text-decoration:none;font-weight:700;cursor:pointer}.pwa-update-toast{position:fixed;left:50%;bottom:84px;z-index:1250;display:flex;align-items:center;gap:12px;max-width:calc(100% - 32px);padding:12px 14px;border-radius:12px;background:#102535;color:#fff;transform:translateX(-50%);box-shadow:0 12px 30px rgba(0,0,0,.28)}.pwa-update-toast button{border:0;border-radius:8px;padding:8px 11px;background:#00ad97;color:#fff;font-weight:700}.offline-page{min-height:100vh;margin:0;display:grid;place-items:center;padding:24px;box-sizing:border-box;background:linear-gradient(135deg,#061f2b,#075248);color:#fff;font-family:Arial,sans-serif}.offline-page main{max-width:580px}.offline-page img{width:84px;height:84px}.offline-page h1{font-size:clamp(28px,6vw,48px);line-height:1.08}.offline-page p{font-size:17px;line-height:1.6}.offline-page a{margin-left:8px;background:transparent;border:1px solid rgba(255,255,255,.45)}@media(max-width:700px){.pwa-install-button{right:14px;bottom:92px}.offline-page a{display:block;margin:10px 0 0;text-align:center}.offline-page button{width:100%}}