:root{--atc-navy-900:#06112b;--atc-navy-800:#0a1a3a;--atc-navy-700:#0e2a55;--atc-blue-500:#3aa0ff;--atc-blue-300:#9fc2ff;--atc-gold-500:#ffce3a;--atc-gold-300:#ffe39a;--line-green-500:#06c755;--ink-50:#f4f7ff;--ink-300:#b9c6e6;--grade-overlay:linear-gradient(180deg, #06112b4d 0%, #08163729 45%, #040c2066 100%);--font-jp:"Zen Kaku Gothic New", "Noto Sans JP", system-ui, sans-serif;--font-en:"Space Grotesk", "Zen Kaku Gothic New", system-ui, sans-serif;--fs-hero:clamp(2.4rem, 6vw, 5rem);--fs-h2:clamp(1.8rem, 4vw, 3.2rem);--fs-body:clamp(1rem, 1.4vw, 1.2rem);--fs-sub:.78rem;--space-section:clamp(4rem, 12vh, 9rem);--maxw:1200px;--radius:12px}*,:before,:after{box-sizing:border-box}html,body,#root{min-height:100%;margin:0;padding:0}html,body{max-width:100%;overflow-x:hidden}body{background:var(--atc-navy-900);color:var(--ink-50);font-family:var(--font-jp);-webkit-font-smoothing:antialiased;overflow-x:hidden}img{max-width:100%;display:block}a{color:inherit}.subcopy{font-family:var(--font-en);font-size:var(--fs-sub);letter-spacing:.18em;text-transform:uppercase;color:var(--atc-blue-300)}.container{width:min(100% - 2.5rem, var(--maxw));margin-inline:auto}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation-duration:.001ms!important}}@media (width<=768px){:root{--space-section:clamp(3rem, 9vh, 6rem)}section{min-height:90vh!important}#howtoplay .container{grid-template-columns:1fr!important}}