:root{color-scheme:light;--bg:#f5f7fb;--panel:#fff;--text:#182033;--muted:#6c7485;--line:#e3e8f1;--primary:#2563eb;--danger:#dc2626;--ok:#15803d;--warn:#b45309}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans SC",Arial,sans-serif}.topbar{height:58px;display:flex;align-items:center;gap:22px;padding:0 24px;background:#101827;color:#fff}.brand{font-weight:700}nav{display:flex;gap:10px;flex:1}nav a{color:#cbd5e1;text-decoration:none;padding:8px 10px;border-radius:8px}nav a.active,nav a:hover{background:#1f2a44;color:#fff}.topbar form{margin-left:auto}.topbar button{background:#334155;color:#fff;border:0;border-radius:8px;padding:8px 12px}.container{max-width:1180px;margin:28px auto;padding:0 18px}.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px;margin-bottom:18px;box-shadow:0 6px 22px rgba(15,23,42,.05)}.hero{text-align:center;padding:48px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.login-card{max-width:420px;margin:60px auto}.form{display:grid;gap:14px}.two-col{grid-template-columns:repeat(2,minmax(0,1fr))}.full{grid-column:1/-1}label{font-weight:600;color:#334155}input,textarea{width:100%;margin-top:6px;padding:10px 12px;border:1px solid #cbd5e1;border-radius:10px;font:inherit}textarea{min-height:92px}.checkbox{display:flex;align-items:center;gap:8px;margin-top:28px}.checkbox input{width:auto;margin:0}.primary{background:var(--primary);color:#fff;border:0;border-radius:10px;padding:11px 18px;font-weight:700;cursor:pointer}.alert{border-radius:12px;padding:12px 14px;margin:12px 0}.error{background:#fee2e2;color:#991b1b}.success{background:#dcfce7;color:#166534}.warning{background:#fef3c7;color:#92400e}.inline-form{display:flex;gap:12px;align-items:end;margin-bottom:18px}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}th,td{border-bottom:1px solid var(--line);padding:10px;text-align:left;vertical-align:top}th{color:#475569;background:#f8fafc}.raw,.result{white-space:pre-wrap;background:#0f172a;color:#e2e8f0;border-radius:12px;padding:14px;overflow:auto}code{background:#f1f5f9;border-radius:6px;padding:2px 6px}.muted,small{color:var(--muted)}.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.stat{border:1px solid var(--line);border-radius:12px;padding:12px;background:#f8fafc}.stat b{display:block;font-size:22px;margin-top:4px}@media(max-width:760px){.grid,.two-col,.stats{grid-template-columns:1fr}.topbar{height:auto;align-items:flex-start;flex-direction:column;padding:14px}nav{flex-wrap:wrap}.inline-form{display:block}}