#arranque{display:none}
html.com-sessao #arranque{display:flex;position:fixed;inset:0;z-index:100;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:#eef0ec;color:#1b1f1c;font:600 1rem system-ui,-apple-system,"Segoe UI",sans-serif}
@media (prefers-color-scheme:dark){html.com-sessao #arranque{background:#111513;color:#e9ece7}}
html.com-sessao #root{visibility:hidden}
#arranque .ar-bola{width:64px;height:64px;animation:ar-salta 1s ease-in-out infinite}
#arranque .ar-sombra{width:46px;height:8px;border-radius:50%;background:#000;opacity:.25;margin-top:-10px;animation:ar-sombra 1s ease-in-out infinite}
#arranque b{font-size:1.3rem;letter-spacing:.02em}
@keyframes ar-salta{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-26px) rotate(180deg)}}
@keyframes ar-sombra{0%,100%{transform:scaleX(1);opacity:.25}50%{transform:scaleX(.6);opacity:.1}}
@media (prefers-reduced-motion:reduce){#arranque .ar-bola,#arranque .ar-sombra{animation:none}}