:root{--primary:#4f46e5;--primary-hover:#4338ca;--danger:#dc2626;--danger-hover:#b91c1c;--success:#16a34a;--warning:#d97706;--background:#f9fafb;--foreground:#111827;--muted:#6b7280;--border:#e5e7eb;--card:#fff}*{box-sizing:border-box;margin:0;padding:0}body,html{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;background:var(--background);color:var(--foreground);line-height:1.6}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}input,select,textarea{width:100%;padding:.75rem 1rem;border:1px solid var(--border);border-radius:.5rem;font-size:1rem;background:var(--card);transition:border-color .2s,box-shadow .2s}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,.1)}label{display:block;margin-bottom:.5rem;color:var(--foreground)}.btn,label{font-weight:500}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;border:none;border-radius:.5rem;font-size:1rem;cursor:pointer;transition:background-color .2s,transform .1s}.btn:hover{transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover:not(:disabled){background:var(--danger-hover)}.btn-secondary{background:var(--card);color:var(--foreground);border:1px solid var(--border)}.btn-secondary:hover:not(:disabled){background:var(--background)}.card{background:var(--card);border:1px solid var(--border);border-radius:.75rem;padding:1.5rem}.text-muted{color:var(--muted)}.text-danger{color:var(--danger)}.text-success{color:var(--success)}.text-center{text-align:center}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mb-4{margin-bottom:2rem}.mt-2{margin-top:1rem}.mt-4{margin-top:2rem}.alert{padding:1rem;border-radius:.5rem;margin-bottom:1rem}.alert-error{background:#fef2f2;border:1px solid #fecaca;color:#991b1b}.alert-success{background:#f0fdf4;border:1px solid #bbf7d0;color:#166534}.form-group{margin-bottom:1.25rem}.form-hint{font-size:.875rem;color:var(--muted);margin-top:.25rem}.spinner{display:inline-block;width:1rem;height:1rem;border:2px solid transparent;border-top-color:currentcolor;border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}