:root{--font-ui: "Manrope", "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--brand-black: #05070a;--brand-graphite: #0d1117;--brand-deep-blue: #082a4a;--brand-blue: #0b84ff;--brand-light-blue: #5bceff;--brand-white: #f5f7fa;--brand-gray: #a6afbb;--surface: #081426;--border: #203859;--warning: #f6c66a;--danger: #ff7b86;--footer-h: calc(6 * var(--vh));--fade: .4s}*{box-sizing:border-box;cursor:none!important}html,body{margin:0;width:100%;height:100%;overflow:hidden;background:#000;color:var(--brand-white);font-family:var(--font-ui);user-select:none;-webkit-user-select:none}#app{position:fixed;inset:0;background:#000;overflow:hidden}.screen{position:absolute;left:0;top:0;width:100%;height:100%;overflow:hidden;background:#000;transform-origin:50% 50%}.stage{position:absolute;left:0;top:0;right:0;bottom:var(--footer-h);background:#000;overflow:hidden}.stage.no-footer{bottom:0}.layer{position:absolute;inset:0;opacity:0;transition:opacity var(--fade) linear;background:#000;will-change:opacity}.layer.visible{opacity:1}.layer video,.layer img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#000;display:none}.layer video.on,.layer img.on{display:block}.builtin{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:calc(2 * var(--vh));background:radial-gradient(ellipse at 80% 0%,rgb(11 132 255 / 18%),transparent 55%),var(--brand-black)}.builtin .brand{font-size:calc(7 * var(--vh));font-weight:800;letter-spacing:.02em}.builtin .brand span{color:var(--brand-blue)}.builtin .tagline{font-size:calc(2.6 * var(--vh));color:var(--brand-gray)}.footer{position:absolute;left:0;right:0;bottom:0;height:var(--footer-h);background:#000;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:calc(2 * var(--vw));padding:0 calc(1.4 * var(--vw));font-size:calc(var(--footer-h) * .42);font-variant-numeric:tabular-nums;white-space:nowrap;z-index:10}.footer.hidden{display:none}.footer .alert{flex:1 1 auto;overflow:hidden;text-overflow:ellipsis;font-weight:800;color:#000;background:var(--warning);padding:.12em .6em;border-radius:.3em;visibility:hidden}.footer .alert.on{visibility:visible}.footer .alert.danger{background:var(--danger)}.footer .id{flex:0 0 auto;font-weight:600;letter-spacing:.02em}.overlay{position:absolute;inset:0;z-index:20;display:none;align-items:center;justify-content:center;background:#05070aeb}.overlay.on{display:flex}.overlay.full{background:radial-gradient(ellipse at 80% 0%,rgb(11 132 255 / 14%),transparent 50%),var(--brand-black)}.card{max-width:calc(82 * var(--vw));padding:calc(4 * var(--vh)) calc(4 * var(--vw));border-radius:20px;background:var(--surface);border:1px solid var(--border);text-align:center}.card h1{margin:0 0 calc(2 * var(--vh));font-size:calc(4.2 * var(--vh));font-weight:800}.card p{margin:calc(1 * var(--vh)) 0;font-size:calc(2.6 * var(--vh));color:var(--brand-gray)}.pairing{display:flex;flex-wrap:wrap;justify-content:center;gap:calc(3 * var(--vh)) calc(5 * var(--vw));align-items:center;text-align:left}.pairing .code{white-space:nowrap;font-size:min(calc(11 * var(--vh)),calc(8 * var(--vw)));font-weight:800;letter-spacing:.08em;color:var(--brand-white);font-variant-numeric:tabular-nums}.pairing canvas{width:min(calc(34 * var(--vh)),calc(40 * var(--vw)));height:min(calc(34 * var(--vh)),calc(40 * var(--vw)));background:#fff;border-radius:12px;padding:calc(1.2 * var(--vh))}.pairing .meta{font-size:calc(2.2 * var(--vh));color:var(--brand-gray)}.alert28 .card{border:3px solid var(--danger)}.alert28 h1{color:var(--danger);font-size:calc(6 * var(--vh))}.alert28 p{color:var(--brand-white);font-size:calc(3.6 * var(--vh))}.tech{margin-top:calc(3 * var(--vh));display:none;gap:calc(1 * var(--vh));flex-direction:column}.tech.on{display:flex}.tech input,.tech button{font:inherit;font-size:calc(2.2 * var(--vh));padding:calc(1 * var(--vh)) calc(1.2 * var(--vw));border-radius:8px;border:1px solid #647a96;background:var(--brand-graphite);color:var(--brand-white);cursor:auto!important}.tech button{background:#0056b3;border-color:#0056b3;font-weight:700}.tech .msg{min-height:calc(2.4 * var(--vh));color:var(--warning)}