:root{--bg: #ffffff;--ink: #141414;--purple: #8b2fe0;--green: #39ff14}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{background:var(--bg);color:var(--ink);font-family:Segoe UI,system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased}.stage{min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;text-align:center}.tagline{font-weight:800;letter-spacing:.04em;line-height:1.1;font-size:clamp(1.9rem,7vw,5.5rem);text-transform:none;animation:fd-color 4s steps(1,end) infinite,fd-flicker 3.4s linear infinite;will-change:color,opacity,text-shadow}@keyframes fd-color{0%,49%{color:var(--purple);text-shadow:0 0 6px color-mix(in srgb,var(--purple) 70%,transparent),0 0 22px color-mix(in srgb,var(--purple) 45%,transparent)}50%,to{color:var(--green);text-shadow:0 0 6px color-mix(in srgb,var(--green) 70%,transparent),0 0 22px color-mix(in srgb,var(--green) 45%,transparent)}}@keyframes fd-flicker{0%,18%,22%,25%,53%,57%,to{opacity:1}20%{opacity:.35}23%{opacity:.75}55%{opacity:.3}70%{opacity:.85}72%{opacity:1}}@media (prefers-reduced-motion: reduce){.tagline{animation:none;color:var(--purple);text-shadow:0 0 10px color-mix(in srgb,var(--purple) 40%,transparent)}}.seal{margin-top:clamp(28px,6vh,56px);width:min(760px,100%);display:flex;flex-direction:column;align-items:center;gap:12px}.seal-toggle,.seal-go{cursor:pointer;font:inherit;font-size:.85rem;min-height:44px;padding:10px 18px;border-radius:999px;border:1px solid #e6e6e6;background:#fafafa;color:#6b6b6b;transition:color .15s ease,border-color .15s ease}.seal-toggle:hover,.seal-go:hover:not(:disabled){color:var(--purple);border-color:var(--purple)}.seal-go:disabled{opacity:.5;cursor:default}.seal-form{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:8px}.seal-input{font:inherit;font-size:.9rem;min-height:44px;width:160px;padding:10px 14px;text-align:center;color:var(--ink);background:#fff;border:1px solid #e6e6e6;border-radius:999px}.seal-input:focus{outline:none;border-color:var(--purple)}.seal-err{width:100%;text-align:center;font-size:.8rem;color:#d33}.seal-content{width:100%;margin-top:4px;max-height:45dvh;overflow:auto;padding:16px 18px;border:1px solid #ececec;border-radius:12px;background:#fbfbfb;color:#333;text-align:left;font-family:ui-monospace,SFMono-Regular,Cascadia Code,monospace;font-size:.8rem;line-height:1.5;white-space:pre-wrap;word-break:break-word}