/* Fundo e partículas compartilhados pelas três telas do funil. */
:root{--bg:#09090b;background:#09090b;color-scheme:dark}
html,body{background-color:#09090b;background-image:none}
.ambient-particles{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:10;display:block}