:root{--color-primary:#1f2937;--color-primary-light:#374151;--color-accent:#f59e0b;--color-accent-hover:#d97706;--color-success:#10b981;--color-danger:#ef4444;--color-warning:#f59e0b;--color-info:#3b82f6;--color-bg:#f9fafb;--color-surface:#ffffff;--color-border:#e5e7eb;--color-text:#111827;--color-text-muted:#6b7280;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--radius-sm:0.25rem;--radius-md:0.375rem;--radius-lg:0.5rem;--sidebar-width:240px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:14px;line-height:1.5;color:var(--color-text);background-color:var(--color-bg)}a{color:inherit;text-decoration:none}.text-muted{color:var(--color-text-muted)}.text-success{color:var(--color-success)}.text-danger{color:var(--color-danger)}.text-warning{color:var(--color-warning)}.badge{display:inline-flex;align-items:center;padding:var(--space-1) var(--space-2);font-size:.75rem;font-weight:500;border-radius:var(--radius-sm);background-color:var(--color-border);color:var(--color-text)}.badge-success{background-color:#d1fae5;color:#065f46}.badge-danger{background-color:#fee2e2;color:#991b1b}.badge-warning{background-color:#fef3c7;color:#92400e}.badge-info{background-color:#dbeafe;color:#1e40af}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);font-size:.875rem;font-weight:500;border-radius:var(--radius-md);border:1px solid transparent;cursor:pointer;transition:all .15s ease}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background-color:var(--color-primary);color:white}.btn-primary:hover:not(:disabled){background-color:var(--color-primary-light)}.btn-success{background-color:var(--color-success);color:white}.btn-success:hover:not(:disabled){background-color:#059669}.btn-danger{background-color:var(--color-danger);color:white}.btn-danger:hover:not(:disabled){background-color:#dc2626}.btn-outline{background-color:transparent;border-color:var(--color-border);color:var(--color-text)}.btn-outline:hover:not(:disabled){background-color:var(--color-bg)}.btn-sm{padding:var(--space-1) var(--space-2);font-size:.75rem}.card{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-4)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-4);padding-bottom:var(--space-3);border-bottom:1px solid var(--color-border)}.card-title{font-size:1rem;font-weight:600}.table-container{overflow-x:auto}table{width:100%;border-collapse:collapse}td,th{text-align:left;padding:var(--space-3);border-bottom:1px solid var(--color-border)}th{font-weight:600;color:var(--color-text-muted);font-size:.75rem;text-transform:uppercase;letter-spacing:.05em}th,tr:hover td{background-color:var(--color-bg)}.form-group{margin-bottom:var(--space-4)}.form-label{display:block;margin-bottom:var(--space-1);font-size:.875rem;font-weight:500;color:var(--color-text)}.form-input,.form-select{width:100%;padding:var(--space-2) var(--space-3);font-size:.875rem;border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-surface)}.form-input:focus,.form-select:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 2px rgba(245,158,11,.2)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));grid-gap:var(--space-4);gap:var(--space-4)}.stat-card{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-4)}.stat-value{font-size:2rem;font-weight:700;color:var(--color-text)}.stat-label{font-size:.875rem;color:var(--color-text-muted)}.loading{display:flex;align-items:center;justify-content:center}.empty-state,.loading{padding:var(--space-8);color:var(--color-text-muted)}.empty-state{text-align:center}