:root{color-scheme:dark;--bg:#111827;--panel:#1f2937;--panel-border:#334155;--text:#f8fafc;--muted:#cbd5e1;--accent:#22c55e;--accent-soft:rgba(34,197,94,0.12)}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:linear-gradient(180deg,#0f172a,#111827);color:var(--text)}body{font-family:Arial,Helvetica,sans-serif}button,input,select{font:inherit}button{cursor:pointer}.page-shell{max-width:1280px;margin:0 auto;padding:40px 24px 64px}.page-header,.workspace-grid{display:grid;grid-gap:24px;gap:24px}.page-header{grid-template-columns:1fr auto;align-items:end;margin-bottom:24px}.page-header h1{margin:0 0 8px;font-size:2.5rem}.feedback,.muted,.page-header p{color:var(--muted)}.status-pill{padding:10px 14px;border:1px solid var(--panel-border);border-radius:8px;background:var(--accent-soft)}.workspace-grid{grid-template-columns:minmax(340px,420px) minmax(0,1fr)}.panel{padding:24px;border:1px solid var(--panel-border);border-radius:8px;background:rgba(15,23,42,.8)}.field-grid,.stats-grid{display:grid;grid-gap:16px;gap:16px}.field-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.field-grid label,.stats-grid div{display:grid;grid-gap:8px;gap:8px}.field-grid span,.stats-grid span,.subsection h3{color:var(--muted);font-size:.95rem}input,select{width:100%;padding:10px 12px;border:1px solid var(--panel-border);border-radius:8px;background:var(--panel);color:var(--text)}.checkbox-field{grid-column:1/-1;grid-template-columns:auto 1fr;align-items:center}.checkbox-field input{width:18px;height:18px}.result-panel{display:grid;grid-gap:24px;gap:24px}.stats-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.stats-grid strong{font-size:1.125rem}.subsection{display:grid;grid-gap:12px;gap:12px}.actions-row{display:flex}.actions-row button{padding:12px 16px;border:1px solid var(--panel-border);border-radius:8px;background:var(--accent);color:#052e16;font-weight:700}.actions-row button:disabled{cursor:wait;opacity:.7}.subsection h3{margin:0}.subsection ul{margin:0;padding-left:18px}.subsection li{display:flex;justify-content:space-between;gap:12px;padding:8px 0}.feedback.error{color:#fca5a5}@media (max-width:960px){.field-grid,.page-header,.stats-grid,.workspace-grid{grid-template-columns:1fr}}