@import "https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700&family=Share+Tech+Mono&display=swap";*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--ink:#0e0e0c;--surface:#141412;--tile:#1c1c1a;--tile-border:#2e2e2a;--off-white:#e8e4dc;--muted:#888880;--accent:#c85a1a;--flap-bg:#1a1a18;--flap-face:#242420;--flap-text:#e8e4dc;--font-display:"Share Tech Mono", monospace;--font-body:"Noto Sans JP", sans-serif}body{background:var(--surface);color:var(--off-white);font-family:var(--font-body);min-height:100vh;font-size:18px}button{cursor:pointer}a{text-decoration:none}input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}input[type=number]{-moz-appearance:textfield}@media (width<=520px){main{padding:1rem;max-width:100%!important}}