:root{--bg:#1f3333;--surface:#2f4f4f;--text:#eef5f1;--muted:#b5c9c0;--accent:#a8d5ba;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:18px;line-height:1.5}*{box-sizing:border-box}body{background:var(--bg);min-height:100dvh;margin:0}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}}.app{max-width:32rem;min-height:100dvh;padding:max(2rem, env(safe-area-inset-top)) 1.25rem max(1.5rem, env(safe-area-inset-bottom));text-align:center;flex-direction:column;align-items:center;gap:1.5rem;margin:0 auto;display:flex}h1{margin:0;font-size:2rem;font-weight:600}.lead{margin:0;font-size:1.25rem}.breath{background:var(--accent);opacity:.85;border-radius:50%;width:10rem;height:10rem;margin:2rem 0;animation:10s ease-in-out infinite breathe}@keyframes breathe{0%,to{transform:scale(.6)}50%{transform:scale(1)}}.hint{color:var(--muted);margin:0}.footer{color:var(--muted);margin-top:auto;font-size:.85rem}.footer a{color:var(--accent)}