:root{--background:#f5f6f8;--card:#fff;--border:#e4e6eb;--text:#14171f;--text-muted:#6b7280;--primary:#2f6bff;--primary-muted:#e8efff;--danger:#dc2626;--ok:#16a34a;--ok-muted:#e7f7ec;--radius:10px}*{box-sizing:border-box}body{margin:0;background:var(--background);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}a{color:var(--primary)}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.page{max-width:720px;margin:0 auto;padding:32px 20px}h1{font-size:22px}label{display:block;font-size:13px;font-weight:600;color:var(--text-muted);margin-bottom:4px;margin-top:14px}input,select{width:100%;padding:10px 12px;border:1px solid var(--border);background:var(--card);color:var(--text)}button,input,select{font-size:14px;border-radius:8px}button{cursor:pointer;font-weight:600;border:none;padding:10px 16px}button.primary{background:var(--primary);color:#fff}button.primary:disabled{opacity:.5;cursor:default}button.secondary{background:var(--primary-muted);color:var(--primary)}.error-text{color:var(--danger);font-size:13px;margin-top:8px}.muted{color:var(--text-muted);font-size:13px}table{width:100%;border-collapse:collapse}td,th{text-align:left;padding:10px 8px;border-bottom:1px solid var(--border);font-size:14px}th{color:var(--text-muted);font-weight:600;font-size:12px;text-transform:uppercase}.topbar{display:flex;justify-content:space-between;align-items:center;padding:16px 32px;border-bottom:1px solid var(--border);background:var(--card)}.main-content{padding:28px 32px;max-width:900px;margin:0 auto}.form-card{max-width:420px}.checkbox-row{display:flex;align-items:center;gap:8px}.checkbox-row input{width:auto}