:root{--bg:#0b0d12;--panel:#12151c;--ink:#e8eaf0;--muted:#9aa3b2;--brand:#3b82f6;--brand-ink:#fff;--accent:#f4c84b;--border:#232838;font-family:Space Grotesk,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--ink)}.welcome{background:radial-gradient(1100px 560px at 78% -10%, #f4c84b1f, transparent 68%), radial-gradient(1200px 600px at 32% -10%, #3b82f633, transparent 70%), var(--bg);place-items:center;min-height:100%;padding:2rem 1rem;display:grid}.welcome__card{background:var(--panel);border:1px solid var(--border);border-radius:16px;width:min(760px,100%);padding:2.5rem;box-shadow:0 20px 60px #0006}.welcome__title{letter-spacing:-.02em;margin:0 0 1rem;font-size:2rem}.welcome__lede{color:var(--muted);margin:0 0 1rem;line-height:1.6}.welcome__lede strong{color:var(--ink)}.welcome__prepare{margin:1.75rem 0}.welcome__button{appearance:none;background:linear-gradient(120deg, var(--brand) 0%, var(--brand) 60%, var(--accent) 180%);color:var(--brand-ink);font:inherit;cursor:pointer;border:0;border-radius:10px;padding:.85rem 1.6rem;font-weight:600;transition:filter .15s}.welcome__button:hover:not(:disabled){filter:brightness(1.08)}.welcome__button:disabled{opacity:.7;cursor:progress}.welcome__progress{color:var(--brand);margin:.85rem 0 0}.welcome__error{color:#ff6b6b;margin:.85rem 0 0}.welcome__hint{color:var(--muted);margin:.85rem 0 0;font-size:.9rem}.limitations{border-top:1px solid var(--border);margin-top:1.5rem;padding-top:1.25rem}.limitations summary{cursor:pointer;color:var(--ink);font-weight:600}.limitations__list{color:var(--muted);margin:1rem 0;padding-left:1.1rem;line-height:1.6}.limitations__list strong{color:var(--ink)}.limitations__cta{color:var(--muted)}.limitations__cta a,.welcome__error button{color:var(--brand)}.split{flex-direction:column;height:100%;display:flex}.split__bar{background:var(--panel);border-bottom:1px solid var(--border);align-items:center;gap:1rem;padding:.6rem 1rem;display:flex}.split__brand{align-items:center;gap:.5rem;font-weight:700;display:inline-flex}.split__brand:before{content:"";background:linear-gradient(135deg, var(--accent), var(--brand));border-radius:2px;width:.6rem;height:.6rem}.split__note{color:var(--muted);font-size:.85rem}.split__reset{appearance:none;border:1px solid var(--border);color:var(--ink);font:inherit;cursor:pointer;background:0 0;border-radius:8px;margin-left:auto;padding:.4rem .9rem}.split__reset:hover:not(:disabled){border-color:var(--brand)}.split__panes{flex:1;grid-template-columns:1fr 1fr;min-height:0;display:grid}.split__pane{border-right:1px solid var(--border);min-width:0;min-height:0}.split__pane:last-child{border-right:0}.split__frame{border:0;width:100%;height:100%;display:block}@media (width<=900px){.split__panes{grid-template-rows:1fr 1fr;grid-template-columns:1fr}.split__pane{border-right:0;border-bottom:1px solid var(--border)}}