:root{
  --bg:#f7f3ee; --card:#fff; --text:#1c1917; --muted:#78716c; --line:#e7e0d8;
  --accent:#c2410c; --accent-soft:#ffedd5; --ok:#15803d;
  --sans:"Source Sans 3",system-ui,sans-serif; --mono:"Source Code Pro",ui-monospace,monospace;
  --radius:12px;
}
*{box-sizing:border-box}
body{margin:0;font-family:var(--sans);background:var(--bg);color:var(--text);line-height:1.55;min-height:100vh}
.shell-rw-top{max-width:1100px;margin:0 auto;padding:1.75rem 1.5rem 1rem}
.shell-rw-brand{font-size:.72rem;letter-spacing:.18em;font-weight:700;text-transform:uppercase;color:var(--muted);display:flex;gap:.5rem;align-items:center}
.shell-rw-mark{color:var(--accent);font-size:1.1rem;letter-spacing:0}
.shell-rw-nav{display:flex;gap:1rem;margin:.75rem 0}
.shell-rw-nav a{color:var(--muted);text-decoration:none;font-size:.9rem}
.shell-rw-top h1{margin:.2rem 0;font-size:1.65rem}
.shell-rw-intro{color:var(--muted);margin:0 0 .5rem}
.shell-rw-workspace{max-width:1100px;margin:0 auto 2rem;padding:0 1.5rem;display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media(max-width:800px){.shell-rw-workspace{grid-template-columns:1fr}}
.shell-rw-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1rem;display:flex;flex-direction:column;gap:.55rem;min-height:320px}
.shell-rw-panel label{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.shell-rw-panel textarea,.shell-rw-panel pre{flex:1;width:100%;margin:0;border:1px solid var(--line);border-radius:8px;padding:.75rem;font-family:var(--mono);font-size:.8rem;background:#fafaf9;color:var(--text);white-space:pre-wrap}
.shell-rw-flags label{display:flex;gap:.4rem;align-items:center;font-size:.85rem;font-weight:500;text-transform:none;letter-spacing:0;color:var(--text);margin:.25rem 0}
.shell-rw-sdk{font-size:.85rem;background:var(--accent-soft);border-radius:8px;padding:.65rem .75rem;color:#7c2d12}
.shell-rw-panel .accent{align-self:flex-start;background:var(--accent);color:#fff;border:0;font-weight:700;padding:.5rem 1rem;border-radius:8px;cursor:pointer;font:inherit}