:root{--nis-bg:#f6f7f8;--nis-surface:#fff;--nis-text:#111827;--nis-muted:#6b7280;--nis-border:#1118271f;--nis-accent:#0f7a5b;--nis-accent-strong:#0b5d45;--nis-danger:#dc2626;--nis-warning:#f59e0b;--nis-success:#16a34a;--nis-radius:14px;--nis-shadow:0 8px 24px #11182714}.nis-shell{background:radial-gradient(1200px 400px at 25% 0%,#0f7a5b14,#fff0),var(--nis-bg);min-height:100vh;color:var(--nis-text);flex-direction:column;display:flex}.nis-header{z-index:10;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--nis-border);background:#ffffffd9;position:sticky;top:0}.nis-header-inner{justify-content:space-between;align-items:center;gap:16px;max-width:1040px;margin:0 auto;padding:14px 18px;display:flex}.nis-brand{color:var(--nis-text);align-items:center;gap:12px;text-decoration:none;display:flex}.nis-brand-sub{color:var(--nis-muted);border-left:1px solid var(--nis-border);white-space:nowrap;padding-left:12px;font-size:14px;line-height:1}.nis-nav{flex-wrap:wrap;justify-content:flex-end;gap:10px;display:flex}.nis-nav-link{color:var(--nis-muted);border:1px solid #0000;border-radius:999px;padding:8px 10px;font-size:13px;text-decoration:none}.nis-nav-link:hover{color:var(--nis-text);border-color:var(--nis-border);background:#11182708}.nis-content{flex:1}.nis-container{max-width:1040px;margin:0 auto;padding:28px 18px 44px}.nis-footer{border-top:1px solid var(--nis-border);background:#ffffffb3}.nis-footer-inner{max-width:1040px;color:var(--nis-muted);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin:0 auto;padding:14px 18px;font-size:12px;display:flex}.nis-card{background:var(--nis-surface);border:1px solid var(--nis-border);border-radius:var(--nis-radius);box-shadow:var(--nis-shadow);padding:18px}.nis-card+.nis-card{margin-top:16px}.nis-title{letter-spacing:-.01em;margin:0 0 8px;font-size:26px}.nis-lead{color:var(--nis-muted);margin:0}.nis-form{gap:12px;margin-top:14px;display:grid}.nis-label{color:var(--nis-text);font-size:13px}.nis-input,.nis-textarea{border:1px solid var(--nis-border);width:100%;color:var(--nis-text);background:#fff;border-radius:12px;outline:none;margin-top:6px;padding:10px 12px}.nis-input:focus,.nis-textarea:focus{border-color:#0f7a5b73;box-shadow:0 0 0 4px #0f7a5b1f}.nis-actions{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.nis-btn{appearance:none;border:1px solid var(--nis-border);color:var(--nis-text);cursor:pointer;background:#fff;border-radius:12px;justify-content:center;align-items:center;padding:10px 12px;font-size:14px;font-weight:600;text-decoration:none;display:inline-flex}.nis-btn:hover{background:#11182708}.nis-btn:disabled{opacity:.6;cursor:not-allowed}.nis-btn-primary{color:#fff;background:linear-gradient(#0f7a5bf2,#0b5d45fa);border-color:#0f7a5b59}.nis-btn-primary:hover{background:linear-gradient(#0f7a5b,#0b5d45)}.nis-btn-secondary{border-color:#1118272e}.nis-pill{border:1px solid var(--nis-border);color:var(--nis-muted);background:#fffc;border-radius:999px;align-items:center;gap:8px;padding:6px 10px;font-size:12px;display:inline-flex}.nis-error{color:var(--nis-danger);margin:0;font-size:13px}.nis-hint{color:var(--nis-muted);margin:12px 0 0;font-size:12.5px}.nis-grid{gap:12px;display:grid}.nis-row{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.nis-right{text-align:right}.nis-table{border-collapse:collapse;width:100%}.nis-table th{text-align:left;border-bottom:1px solid var(--nis-border);color:var(--nis-muted);white-space:nowrap;padding:10px 8px;font-size:13px;font-weight:700}.nis-table td{border-bottom:1px solid #11182714;padding:10px 8px;font-size:13.5px}.nis-mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace}.nis-answer[data-active=true]{border-color:#0f7a5b99;box-shadow:0 0 0 4px #0f7a5b1f}.nis-answer[data-active=true]:not(:disabled){background:#0f7a5b14}