:root{--color-bg:#f4f6f9;--color-surface:#fff;--color-border:#e2e8f0;--color-text:#1e293b;--color-text-muted:#64748b;--color-primary:#2563eb;--color-primary-hover:#1d4ed8;--color-danger:#dc2626;--color-success:#16a34a;--color-warning:#d97706;--sidebar-width:240px;--header-height:56px;--radius:8px;--shadow:0 1px 3px #0f172a14}*,:before,:after{box-sizing:border-box}html,body,#app{min-height:100vh;margin:0}body{color:var(--color-text);background:var(--color-bg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;font-size:14px;line-height:1.5}a{color:inherit;text-decoration:none}button,input,select{font:inherit}.btn{border-radius:var(--radius);cursor:pointer;border:1px solid #0000;justify-content:center;align-items:center;gap:6px;padding:8px 16px;transition:background .15s,border-color .15s;display:inline-flex}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn-secondary{background:var(--color-surface);border-color:var(--color-border);color:var(--color-text)}.btn-secondary:hover:not(:disabled){background:var(--color-bg)}.btn-danger{background:var(--color-danger);color:#fff}.btn-success{background:var(--color-success);color:#fff}.input-control{border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);width:100%;color:var(--color-text);padding:10px 12px}.input-control:focus{border-color:var(--color-primary);outline:none;box-shadow:0 0 0 3px #2563eb26}.panel-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow)}.badge{border-radius:999px;padding:2px 8px;font-size:12px;font-weight:500;display:inline-block}.badge-open{color:#166534;background:#dcfce7}.badge-closed{color:#475569;background:#f1f5f9}.badge-pending{color:#92400e;background:#fef3c7}.badge-accepted{color:#166534;background:#dcfce7}.badge-rejected{color:#991b1b;background:#fee2e2}.error-text{color:var(--color-danger);font-size:13px}.empty-state{text-align:center;color:var(--color-text-muted);padding:48px 24px}.table-wrap{overflow-x:auto}.data-table{border-collapse:collapse;width:100%}.data-table th,.data-table td{text-align:left;border-bottom:1px solid var(--color-border);padding:12px 16px}.data-table th{color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.04em;background:#f8fafc;font-size:12px;font-weight:600}.data-table tbody tr:hover{background:#f8fafc}.data-table.clickable-table tbody tr.clickable-row:hover{background:#eff6ff}.page-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:16px;display:flex}.page-title{margin:0;font-size:22px;font-weight:600}.filters{flex-wrap:wrap;gap:8px;display:flex}.pagination{justify-content:center;align-items:center;gap:12px;padding:16px;display:flex}