:root{--skin:#f1cfbd;--ink:#5a2e22;--accent:#e8735a;--font:"M PLUS Rounded 1c", "Hiragino Maru Gothic ProN", "Yu Gothic", system-ui, sans-serif}*{box-sizing:border-box}html,body{background:var(--skin);height:100%;font-family:var(--font);color:var(--ink);-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent;margin:0;overflow:hidden}#skin,#fx{width:100%;height:100%;display:block;position:fixed;inset:0}#fx{touch-action:none;cursor:pointer}#title{text-align:center;z-index:10;background:radial-gradient(circle at 50% 45%,#fff0e6bf,#f1cfbdf2);flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:16px;transition:opacity .4s;display:flex;position:fixed;inset:0}#title.hidden{opacity:0;pointer-events:none}#title h1{letter-spacing:.04em;color:var(--ink);margin:0;font-size:clamp(56px,16vw,120px);font-weight:900}.tagline{margin:0 0 16px;font-size:clamp(15px,4vw,20px);font-weight:800}#start{font:inherit;color:#fff;background:var(--accent);cursor:pointer;border:0;border-radius:999px;padding:16px 36px;font-size:20px;font-weight:900;animation:3.2s ease-in-out infinite breathe;box-shadow:0 6px #b44c38}#start:active{transform:translateY(4px);box-shadow:0 2px #b44c38}.note,.disclaimer{opacity:.75;margin:4px 0 0;font-size:13px;font-weight:500}#start:disabled{box-shadow:none;cursor:default;background:#b9897a;animation:none}.error{color:#a33a2a;overflow-wrap:anywhere;max-width:520px;margin:8px 0 0;font-size:13px}@keyframes breathe{50%{transform:scale(1.02)}}