:root{--bg:#f6f7f9;--surface:#ffffff;--border:#e3e6ea;--text:#16191d;--muted:#6b7280;--accent:#1f6feb;--danger:#c62828;--success:#1b7f4b;--radius:10px;--shadow:0 1px 2px rgba(16,24,40,0.06),0 1px 3px rgba(16,24,40,0.1)}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:15px;line-height:1.5}a{color:inherit;text-decoration:none}.app-header{background:var(--surface);border-bottom:1px solid var(--border);padding:14px 20px;display:flex;align-items:center;justify-content:space-between}.app-header .brand{font-weight:650;letter-spacing:-.01em}.container{max-width:880px;margin:0 auto;padding:24px 20px 64px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-bottom:16px}h1{font-size:22px;margin:0 0 4px;letter-spacing:-.02em}h2{font-size:16px;margin:0 0 12px}.muted{color:var(--muted);font-size:13px}.row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--border)}.row:last-child{border-bottom:none}.row-main{min-width:0}.row-title{font-weight:550;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.amount{font-feature-settings:"tnum";font-variant-numeric:tabular-nums;font-weight:600;white-space:nowrap}.amount.receivable{color:var(--success)}.amount.payable{color:var(--danger)}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));grid-gap:12px;gap:12px}.stat{border:1px solid var(--border);border-radius:var(--radius);padding:14px}.stat .label{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.04em}.stat .value{font-size:20px;font-weight:650;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;margin-top:4px}label{display:block;font-size:13px;font-weight:550;margin-bottom:6px}input,select{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:15px;font-family:inherit;background:var(--surface);color:var(--text)}input:focus,select:focus{outline:2px solid var(--accent);outline-offset:-1px;border-color:var(--accent)}.field{margin-bottom:14px}.field-row{display:grid;grid-template-columns:1fr 1fr;grid-gap:12px;gap:12px}button{font:inherit;font-weight:550;padding:10px 16px;border-radius:8px;border:1px solid transparent;background:var(--accent);color:#fff;cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}button.secondary{background:var(--surface);color:var(--text);border-color:var(--border)}button.danger{background:var(--danger)}button.success{background:var(--success)}.button-row{display:flex;gap:10px;flex-wrap:wrap}.error{background:#fdecea;border:1px solid #f5c6c2;color:#8c1d18;border-radius:8px}.error,.notice{padding:10px 12px;font-size:14px;margin-bottom:14px}.notice{background:#eef4ff;border:1px solid #c9dcff;color:#123a7a;border-radius:8px}.empty{text-align:center;padding:28px 0}.badge,.empty{color:var(--muted)}.badge{display:inline-block;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.04em;padding:2px 8px;border-radius:999px;background:#eef1f5}