.site-header{position:relative;margin-bottom:2rem;border-bottom:var(--pixel-border);padding:0;background:var(--background-color);overflow:hidden;transition:background .5s ease}.header-image{width:100%;height:calc(168 * var(--art-pixel));background-image:url(/images/header-tower-light.png);background-image:image-set( url(/images/header-tower-light.webp) type('image/webp'),url(/images/header-tower-light.png) type('image/png') );background-size:calc(716 * var(--art-pixel))calc(503 * var(--art-pixel));background-position:50%;background-repeat:no-repeat;background-color:var(--header-bg);position:relative;margin-bottom:0;border-bottom:var(--pixel-border);image-rendering:pixelated;image-rendering:-moz-crisp-edges;image-rendering:crisp-edges}.header-image::after{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background-image:url(/images/header-tower-dark.png);background-image:image-set( url(/images/header-tower-dark.webp) type('image/webp'),url(/images/header-tower-dark.png) type('image/png') );background-size:calc(716 * var(--art-pixel))calc(503 * var(--art-pixel));background-position:50%;background-repeat:no-repeat;image-rendering:pixelated;image-rendering:-moz-crisp-edges;image-rendering:crisp-edges;opacity:0;transition:opacity .5s ease;pointer-events:none}[data-theme=dark] .header-image::after{opacity:1}.header-content{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;position:relative;padding:1rem;border:var(--pixel-border);background:var(--container-bg)}@keyframes scan-line{0%{transform:translateY(0);opacity:0}50%{opacity:1}100%{transform:translateY(100%);opacity:0}}.light-dark{margin-left:1rem;position:relative}.btn-light-dark{padding:.8rem;border:var(--pixel-border);background:0 0;cursor:pointer;width:3rem;height:3rem;display:flex;align-items:center;justify-content:center;transition:all .3s ease;position:relative;overflow:hidden}@keyframes shine{0%{transform:translateX(-100%)rotate(45deg);opacity:0}50%{opacity:1}100%{transform:translateX(100%)rotate(45deg);opacity:0}}.btn-light-dark:hover{background-color:var(--primary-color);color:var(--background-color);transform:scale(1.1)}.btn-light-dark svg{width:1.5rem;height:1.5rem;color:var(--primary-color);filter:drop-shadow(0 0 2px var(--primary-color));transition:all .3s ease}.btn-light-dark:hover svg{transform:rotate(180deg);color:var(--background-color)}@media(max-width:48em){.header-content{flex-direction:row;align-items:center;padding:.5rem}.light-dark{margin-left:.5rem}.btn-light-dark{width:2.5rem;height:2.5rem;padding:.5rem}.btn-light-dark svg{width:1.2rem;height:1.2rem}}.brand{font-family:var(--heading-font);font-size:1.2rem;color:var(--primary-color);text-decoration:none;text-transform:uppercase;letter-spacing:2px}.main-nav{padding:.5rem 1rem;border-bottom:var(--pixel-border);background:var(--background-color);transition:background .5s ease}