:root{--bg:#f5f7fb;--card:#fff;--ink:#162033;--muted:#667085;--line:#e5e7eb;--accent:#1769e0;--danger:#b42318;--shadow:0 6px 24px rgba(16,24,40,.06)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.45 Inter,Arial,sans-serif}.topbar{height:76px;background:#101828;color:white;display:flex;justify-content:space-between;align-items:center;padding:0 28px}.brand{font-weight:800;letter-spacing:2px;font-size:22px}.subtitle{opacity:.7}.top-actions{display:flex;gap:8px}.nav{background:#fff;border-bottom:1px solid var(--line);padding:0 28px;display:flex;gap:6px;position:sticky;top:0;z-index:10}.navbtn{border:0;background:transparent;padding:14px 18px;color:var(--muted);font-weight:700;cursor:pointer;border-bottom:3px solid transparent}.navbtn.active{color:var(--accent);border-color:var(--accent)}.container{max-width:1450px;margin:auto;padding:24px}.tab{display:none}.tab.active{display:block}.hero{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px}.hero h1{margin:0 0 5px;font-size:28px}.hero p{margin:0;color:var(--muted)}.mode-switch{display:flex;background:#e9eef7;padding:4px;border-radius:10px}.mode{border:0;padding:10px 14px;border-radius:7px;background:transparent;cursor:pointer;font-weight:700;color:var(--muted)}.mode.active{background:#fff;color:var(--ink);box-shadow:var(--shadow)}.grid.two{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;box-shadow:var(--shadow);margin-bottom:18px}.fields{display:grid;grid-template-columns:1fr 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