#circuit-intro {position:fixed;inset:0;z-index:90;pointer-events:none;background:linear-gradient(transparent 55%,#081323b3);color:white;display:flex;flex-direction:column;justify-content:flex-end;align-items:flex-start;padding:5vh 5vw;font-family:system-ui,sans-serif;box-sizing:border-box;text-shadow:0 2px 8px #0008;}
#circuit-intro p {margin:0 0 .4em;font-size:12px;font-weight:800;letter-spacing:.18em;}
#circuit-intro h1 {margin:0 0 .5em;font-size:clamp(25px,5vw,58px);line-height:1.1;max-width:85%;}
#circuit-intro button {pointer-events:auto;align-self:flex-end;background:#122239dd;border:1px solid #ffffff88;border-radius:24px;color:white;padding:10px 20px;font:700 14px system-ui;cursor:pointer;min-height:44px;}
body.circuit-preview .hud,body.circuit-preview #touch,body.circuit-preview #help,body.circuit-preview .toast,body.circuit-preview #countdown {visibility:hidden!important;}