/* Aeronautical-chart background. Load after dark.css. */
:root{
  --color-bg:#06101c;
  --color-surface:#0f1c2b;
  --color-divider:color-mix(in srgb,#cfe3ff 30%,transparent);
}
body{background:#06101c;position:relative}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(rgba(6,16,28,.62),rgba(6,16,28,.62)),url(../assets/bg-chart.jpg) center/cover no-repeat}
.nav{background:rgba(6,16,28,.88);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.hero-bar{background:rgba(6,16,28,.92)}
.inset{background:rgba(6,16,28,.9)}
.site-foot{background:rgba(6,16,28,.7)}
.map .land{fill:color-mix(in srgb,#cfe3ff 14%,transparent);stroke:#06101c}
.tag-accent{background:color-mix(in srgb,var(--color-accent) 22%,#06101c)}