:root{--bg:#0d1726;--panel:#142238;--panel2:#1b2c46;--text:#f7fbff;--muted:#9db0c9;--accent:#ffcf45;--good:#4de1a7;--bad:#ff6f7d;--road:#39475b;--road2:#46566c;--line:#7f8da1;--shadow:0 14px 30px rgba(0,0,0,.28);--radius:20px;--gap:clamp(7px,1.1vw,16px);--pad:clamp(8px,1.2vw,20px);--edge:clamp(14px,3vw,34px);--board-max:1040px}
body{background:radial-gradient(circle at 20% 0,#243a59 0,#0d1726 42%,#09111d 100%);color:var(--text);background-attachment:fixed}
.app{position:fixed;inset:0;width:100%;height:100vh;height:100dvh;overflow:hidden}
#screen{position:relative;width:100%;height:100%;overflow:hidden;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none;touch-action:manipulation}
.hidden{display:none!important}
.icon{font-size:1.1em}
.muted{color:var(--muted)}
::-moz-focus-inner{border:0}