.pwa-install-root{position:fixed;inset:0;z-index:99999;display:flex;align-items:center;justify-content:center;padding:1rem;box-sizing:border-box}.pwa-install-backdrop{position:absolute;inset:0;background:rgba(2,6,23,.55);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.pwa-install-card{position:relative;z-index:1;width:100%;max-width:440px;max-height:min(92dvh,720px);overflow-y:auto;padding:1.75rem 1.5rem 1.5rem;border-radius:var(--t-radius-lg);background:var(--t-surface);border:1px solid var(--t-line);box-shadow:var(--t-shadow-card-hover)}.pwa-install-brand{display:flex;justify-content:center;margin-bottom:1rem}.pwa-install-brand img{border-radius:14px;box-shadow:0 4px 20px rgba(15,23,42,.12)}.pwa-install-heading{margin:0 0 .5rem;font-size:1.5rem;font-weight:800;letter-spacing:-.03em;text-align:center;color:var(--t-heading)}.pwa-install-lead{margin:0 0 1rem;text-align:center;font-size:.95rem;line-height:1.55;color:var(--t-muted)}.pwa-install-dev-hint{margin:0 0 1rem;padding:.65rem .75rem;border-radius:var(--t-radius-sm,8px);border:1px solid var(--t-line);background:var(--t-surface-muted,rgba(148,163,184,.12));font-size:.82rem;line-height:1.5;color:var(--t-text);text-align:left}.pwa-install-dev-hint code{font-size:.78em;padding:.1em .35em;border-radius:4px;background:var(--t-bg-mid,rgba(15,23,42,.06))}.pwa-install-benefits{margin:0 0 1.25rem;padding-left:1.2rem;color:var(--t-text);font-size:.9rem;line-height:1.5}.pwa-install-benefits li{margin-bottom:.35rem}.pwa-install-actions{display:flex;flex-direction:column;gap:.6rem;margin-bottom:.75rem}.pwa-install-actions--top{margin-bottom:1.1rem}.pwa-install-btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;cursor:pointer;font:inherit;font-weight:600;font-size:.95rem;padding:.7rem 1rem;border-radius:var(--t-radius-md);transition:transform .16s ease,box-shadow .16s ease,opacity .16s ease}.pwa-install-btn:disabled{opacity:.65;cursor:not-allowed}.pwa-install-btn--primary{color:#fff;background:linear-gradient(135deg,#0ea5e9,#6366f1);box-shadow:0 6px 22px rgba(99,102,241,.35)}.pwa-install-btn--primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 10px 28px rgba(99,102,241,.42)}.pwa-install-btn--ghost{background:transparent;color:var(--t-muted);border:1px solid var(--t-line)}.pwa-install-btn--secondary{background:var(--t-surface-muted,rgba(148,163,184,.15));color:var(--t-text);border:1px solid var(--t-line)}.pwa-install-btn--secondary:hover{background:var(--t-nav-hover-bg)}.pwa-install-actions--recheck{margin-top:.15rem;margin-bottom:.35rem}.pwa-install-actions--declare{margin-top:.5rem;margin-bottom:.5rem}.pwa-install-btn--declare{background:var(--t-surface-muted,rgba(148,163,184,.18));color:var(--t-heading);border:1px solid var(--t-line);font-weight:700}.pwa-install-btn--declare:hover{background:var(--t-nav-hover-bg)}.pwa-install-declare-hint{margin:0;font-size:.78rem;line-height:1.4;color:var(--t-muted);text-align:center}.pwa-install-btn--ghost:hover{background:var(--t-nav-hover-bg);color:var(--t-text)}.pwa-install-btn:focus-visible{outline:2px solid #38bdf8;outline-offset:2px}.pwa-install-linkish{display:block;width:100%;margin:0 0 1rem;padding:0;border:none;background:none;cursor:pointer;font:inherit;font-size:.85rem;font-weight:600;color:#6366f1;text-decoration:underline;text-underline-offset:3px}.pwa-install-manual{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--t-line)}.pwa-install-manual-title{margin:0 0 .65rem;font-size:1rem;font-weight:700;color:var(--t-heading)}.pwa-install-steps{margin:0;padding-left:1.2rem;color:var(--t-text);font-size:.88rem;line-height:1.55}.pwa-install-steps li{margin-bottom:.45rem}.pwa-install-footnote{margin:.75rem 0 0;font-size:.8rem;color:var(--t-muted);line-height:1.45}.pwa-install-dismiss-hint{margin:1rem 0 0;font-size:.78rem;color:var(--t-muted);text-align:center;line-height:1.4}@media (prefers-reduced-motion:reduce){.pwa-install-btn{transition:none}.pwa-install-btn--primary:hover:not(:disabled){transform:none}}