@keyframes pwaSlideUp{0%{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes spin{to{transform:rotate(1turn)}}.pwa-backdrop{position:fixed;bottom:0;left:0;right:0;z-index:10000;display:flex;justify-content:center;padding:16px;pointer-events:none;animation:pwaSlideUp .4s cubic-bezier(.16,1,.3,1);--btn-primary-from:#8b5cf6;--btn-primary-to:#6366f1;--primary-soft:rgba(139,92,246,.14);--primary-glow:rgba(139,92,246,.3)}.pwa-card{pointer-events:auto;width:100%;max-width:420px;background:var(--glass-bg);backdrop-filter:blur(24px) saturate(1.8);-webkit-backdrop-filter:blur(24px) saturate(1.8);border:1px solid var(--glass-border);border-radius:16px;padding:20px;box-shadow:0 -4px 32px rgba(0,0,0,.4),0 0 0 1px hsla(0,0%,100%,.05)}.pwa-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}.pwa-icon{width:48px;height:48px;border-radius:12px;border:2px solid hsla(0,0%,100%,.1);flex-shrink:0}.pwa-title{font-size:1rem;font-weight:700;font-family:Plus Jakarta Sans,sans-serif;color:var(--text);letter-spacing:-.01em}.pwa-subtitle{font-size:.78rem;color:var(--muted);margin-top:2px}.pwa-close{background:transparent;border:none;color:var(--muted);cursor:pointer;font-size:16px;padding:8px;border-radius:8px;display:flex;align-items:center;justify-content:center;transition:all .15s;flex-shrink:0}.pwa-close:hover{background:var(--surface);color:var(--text)}.pwa-features{display:flex;flex-direction:column;gap:10px;margin-bottom:16px}.pwa-feature{display:flex;align-items:center;gap:10px}.pwa-feature-icon-wrap{width:28px;height:28px;border-radius:7px;background:var(--primary-soft);display:flex;align-items:center;justify-content:center;flex-shrink:0}.pwa-feature-title{font-size:.82rem;font-weight:600;color:var(--text)}.pwa-feature-desc{font-size:.72rem;color:var(--muted);margin-top:1px}.pwa-actions{display:flex;gap:10px}.pwa-install-btn{flex:1 1;display:flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;font-size:.88rem;font-weight:600;font-family:Inter,sans-serif;color:#fff;background:linear-gradient(135deg,var(--btn-primary-from),var(--btn-primary-to));border:none;border-radius:10px;cursor:pointer;box-shadow:0 2px 12px var(--primary-glow);transition:all .2s}.pwa-install-btn:hover{transform:translateY(-1px);box-shadow:0 4px 20px var(--primary-glow)}.pwa-install-btn:disabled{opacity:.7;cursor:not-allowed;transform:none}.pwa-later-btn{padding:10px 16px;font-size:.82rem;font-weight:500;font-family:Inter,sans-serif;color:var(--muted);background:transparent;border:1px solid var(--glass-border);border-radius:10px;cursor:pointer;transition:all .2s}.pwa-later-btn:hover{background:var(--surface);color:var(--text)}.pwa-manual-hint{padding:12px 14px;margin-top:4px;border-radius:12px;background:color-mix(in srgb,var(--primary) 10%,transparent);border:1px solid color-mix(in srgb,var(--primary) 24%,transparent)}