* { box-sizing: border-box; }
body { min-height: 100svh; margin: 0; overflow: hidden; color: #fff; background: var(--screen-color, #000); font-family: Arial, Helvetica, sans-serif; transition: background-color .35s ease; }
main { position: fixed; inset: 0; overflow: hidden; }
.mark { position: absolute; display: block; width: clamp(170px, 35vw, 440px); height: auto; will-change: transform; }
#logo-source { display: none; }
.coming-soon, footer a { font-size: 10px; font-weight: 400; letter-spacing: .13em; }
.coming-soon { position: fixed; z-index: 1; bottom: 56px; left: 20px; right: 20px; margin: 0; text-align: center; pointer-events: none; }
footer { position: fixed; z-index: 1; bottom: 0; left: 0; right: 0; display: flex; justify-content: center; align-items: center; gap: 12px; padding: 20px 24px; }
footer a { color: #fff; text-decoration: none; }
footer a:hover { text-decoration: underline; }
.youtube { display: inline-flex; width: 11px; height: 11px; opacity: .9; }
.youtube svg { width: 100%; fill: currentColor; }
.screen-controls { position: fixed; z-index: 2; bottom: 17px; left: 18px; display: flex; align-items: center; gap: 7px; }
.screen-controls button { appearance: none; border: 0; padding: 0; background: transparent; color: #fff; font: 400 7px/1 Arial, sans-serif; letter-spacing: .12em; cursor: pointer; }
.screen-controls button:hover { opacity: .6; }
.color-swatch { width: 11px; height: 11px; border: 1px solid rgba(255,255,255,.8); border-radius: 50%; overflow: hidden; cursor: pointer; }
.color-swatch input { display: block; width: 18px; height: 18px; margin: -4px; padding: 0; border: 0; cursor: pointer; }
@media (max-width: 500px) { .coming-soon, footer a { font-size: 8px; } .mark { width: clamp(190px, 54vw, 355px); } }
@media (prefers-reduced-motion: reduce) { .mark { top: 50%; left: 50%; transform: translate(-50%, -50%); } }