:root{
  color-scheme:dark;--bg:#0d131e;--line:#2d3b52;--text:#f4f7fb;
  --muted:#9ca9bb;--blue:#4388f5;--green:#18a957;--danger:#ff7b7b
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body{min-height:100dvh;display:grid;place-items:center;padding:24px;
  background:radial-gradient(1100px 560px at 50% -8%,#1b2a45,#0d131e 62%);
  color:var(--text);font-family:Inter,"Segoe UI",Arial,sans-serif}
.wrap{width:100%;max-width:600px;display:flex;flex-direction:column;align-items:center;gap:8px}
.cube-stage{width:100%;height:clamp(240px,42vh,380px)}
#cube{display:block;width:100%;height:100%;cursor:grab;opacity:0;transition:opacity .6s ease;touch-action:none}
#cube.ready{opacity:1}
#cube:active{cursor:grabbing}
.card{padding:34px 30px;border:1px solid #ffffff14;border-radius:20px;background:#0f1826cc;
  backdrop-filter:blur(14px);box-shadow:0 24px 60px #0009;text-align:center}
.eyebrow{margin-bottom:12px;color:#7eb0ff;font-size:11px;font-weight:800;
  letter-spacing:.16em;text-transform:uppercase}
h1{margin:0 0 14px;font-size:44px;line-height:1;letter-spacing:-.02em}
.brand{margin:0 0 16px}
.logo{display:inline-block;width:auto;height:clamp(50px,9vw,72px);max-width:100%}
.tagline{margin:0 auto 26px;max-width:46ch;color:#c3ccda;font-size:15px;line-height:1.55}
.waitlist{margin:0 auto;max-width:440px}
.row{display:flex;gap:10px}
input{width:100%;height:52px;padding:0 14px;border:1px solid var(--line);border-radius:11px;
  background:#0c1420;color:var(--text);font-size:16px}
input::placeholder{color:#5f6b7d}
.initials{max-width:120px;text-align:center;text-transform:uppercase;letter-spacing:6px;font-weight:700}
input:focus{outline:none;border-color:#72a8ff;box-shadow:0 0 0 3px #4388f533}
.join{width:100%;height:52px;margin-top:12px;border:0;border-radius:11px;background:var(--green);
  color:#fff;font-size:16px;font-weight:750;cursor:pointer}
.join:hover{background:#118b47}
.join:disabled{opacity:.6;cursor:wait}
.status{min-height:20px;margin:12px 0 0;font-size:13px;color:var(--muted)}
.status.ok{color:#87e4ae}
.status.bad{color:var(--danger)}
.fine{margin:22px 0 0;color:#7f8a9c;font-size:12px;line-height:1.5}
@media(max-width:520px){
  h1{font-size:34px}
  .row{flex-direction:column}
  .initials{max-width:none}
}