:root{--bg:#0d1117;--surface:#161b22;--border:#30363d;--text:#e6edf3;--muted:#8b949e;--accent:#58a6ff;--green:#3fb950;--red:#f85149;--yellow:#d29922}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:14px}a{color:var(--accent)}nav{display:flex;align-items:center;gap:20px;padding:14px 24px;border-bottom:1px solid var(--border);background:var(--surface)}nav .brand{font-weight:700;font-size:15px;margin-right:12px}nav a{text-decoration:none;color:var(--muted);font-size:13px}nav a.active{color:var(--text);font-weight:600}main{padding:24px;max-width:1100px;margin:0 auto}h1{font-size:20px;margin:0 0 16px}h2{font-size:15px;margin:24px 0 10px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}.card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:16px 20px}.badge{display:inline-block;padding:2px 8px;border-radius:4px;font-size:11px;font-weight:700;text-transform:uppercase}.badge.draft{background:rgba(210,153,34,.15);color:var(--yellow)}.badge.reviewed{background:rgba(88,166,255,.15);color:var(--accent)}.badge.verified{background:rgba(63,185,80,.15);color:var(--green)}.badge.standard,.badge.superseded{background:hsla(212,9%,58%,.15);color:var(--muted)}.badge.itemized{background:rgba(88,166,255,.15);color:var(--accent)}table{width:100%;border-collapse:collapse;font-size:13px}td,th{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase}button,input,select{background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:8px 10px;font-size:13px}button{background:var(--accent);color:#04101f;font-weight:600;border:none;cursor:pointer}button:hover{opacity:.9}.field{display:flex;flex-direction:column;gap:4px;margin-bottom:12px}.field label{font-size:12px;color:var(--muted)}.grid3{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:16px;gap:16px}.result-row{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px solid var(--border);font-size:13px}.result-row:last-child{border-bottom:none}.result-row .val{font-family:monospace}.error{color:var(--red);font-size:13px;margin:8px 0}.hint{color:var(--muted);font-size:12px}