.np{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-primary-ring: #3b82f6;--color-primary-tint: #eff6ff;--color-surface: #ffffff;--color-surface-muted: #f9fafb;--color-border: #e5e7eb;--color-border-input: #d1d5db;--color-text-heading: #111827;--color-text-body: #374151;--color-text-secondary: #4b5563;--color-text-muted: #6b7280;--gradient-hero: linear-gradient(to right, #eef2ff, #ffffff, #fdf2f8);--radius-input: .5rem;--radius-card: 1rem;--shadow-card: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-raised: 0 10px 15px -3px rgb(0 0 0 / .1);color:var(--color-text-body);background:#fcfcfd;line-height:1.5;-webkit-font-smoothing:antialiased}.np *{box-sizing:border-box}.np-container{max-width:72rem;margin-inline:auto;padding-inline:1rem;padding-bottom:1rem}@media (min-width: 640px){.np-container{padding-inline:1.5rem}}@media (min-width: 1024px){.np-container{padding-inline:2rem}}.np .card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-card);box-shadow:var(--shadow-card);padding:1.5rem}.np .card--raised{box-shadow:var(--shadow-raised)}.np .btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;background:var(--color-primary);color:#fff;font-weight:600;padding:.625rem 1.5rem;border-radius:var(--radius-input);border:0;cursor:pointer;text-decoration:none;transition:.15s;font-size:1rem}.np .btn:hover:not(:disabled){background:var(--color-primary-hover)}.np .btn:focus-visible{outline:2px solid var(--color-primary-ring);outline-offset:2px}.np .btn:disabled{opacity:.55;cursor:not-allowed}.np .btn--sm{padding:.4rem .85rem;font-size:.85rem}.np .btn--ghost{background:var(--color-surface);color:var(--color-text-body);border:1px solid var(--color-border-input)}.np .btn--ghost:hover:not(:disabled){background:var(--color-surface-muted)}.np h2.section{font-size:1.5rem;font-weight:700;color:var(--color-text-heading);letter-spacing:-.01em;margin:0}.np h3.panel{font-size:1.125rem;font-weight:600;color:var(--color-text-heading);margin:0 0 1.1rem}.np .muted{color:var(--color-text-muted)}.np label.field,.np span.field{display:block;font-size:.875rem;font-weight:500;color:var(--color-text-body)}.np .layout{display:grid;grid-template-columns:1fr;gap:1.5rem;margin-top:2rem}@media (min-width: 920px){.np .layout{grid-template-columns:minmax(0,1.75fr) minmax(0,1fr);align-items:start}.np .side-card{position:sticky;top:1.5rem}}.np .editor-head{display:flex;align-items:center;justify-content:space-between;gap:.75rem;margin-bottom:.6rem;flex-wrap:wrap}.np .editor-actions{display:inline-flex;gap:.5rem}.np .editor{width:100%;min-height:200px;resize:vertical;padding:1rem 1.1rem;border:1px solid var(--color-border-input);border-radius:var(--radius-input);background:var(--color-surface);color:var(--color-text-heading);font-size:1rem;line-height:1.6;font-family:inherit}.np .editor:focus{outline:2px solid var(--color-primary-ring);outline-offset:1px;border-color:var(--color-primary-ring)}.np .editor::placeholder{color:#9ca3af}.np .editor-hint{margin:.75rem 0 0;font-size:.85rem;color:var(--color-text-muted)}.np .opt{display:flex;align-items:flex-start;gap:.6rem;font-size:.92rem;color:var(--color-text-body);padding:.5rem 0;cursor:pointer}.np .opt input{margin-top:.15rem;width:1rem;height:1rem;accent-color:var(--color-primary);flex:0 0 auto}.np .opt-note{margin:.75rem 0 0;font-size:.8rem;color:var(--color-text-muted);line-height:1.5}.np .results-row{margin-top:1.5rem}.np .output{min-height:5.5rem;padding:1.1rem 1.2rem;border:1px solid var(--color-border);border-radius:var(--radius-input);background:var(--color-surface-muted);color:var(--color-text-heading);font-size:1.15rem;line-height:1.7;font-weight:600;word-break:break-word;white-space:pre-wrap}.np .output[data-empty=true]{color:#9ca3af;font-weight:500}.np .ref{margin-top:3.25rem}.np .ref h2.section{text-align:center;margin-bottom:1.5rem}.np .ref-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:.75rem}@media (max-width: 900px){.np .ref-grid{grid-template-columns:repeat(4,1fr)}}@media (max-width: 620px){.np .ref-grid{grid-template-columns:repeat(3,1fr)}}@media (max-width: 420px){.np .ref-grid{grid-template-columns:repeat(2,1fr)}}.np .ref-cell{display:flex;align-items:baseline;gap:.5rem;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-input);padding:.6rem .75rem}.np .ref-cell__sym{font-weight:800;font-size:1rem;color:var(--color-primary);width:1.1rem;flex:0 0 auto;font-variant-numeric:tabular-nums}.np .ref-cell__word{font-size:.9rem;color:var(--color-text-body)}.np .how{margin-top:3.25rem}.np .how h2.section{text-align:center}.np .how__lead{text-align:center;color:var(--color-text-secondary);margin:.4rem 0 1.75rem}.np .steps{display:grid;grid-template-columns:1fr;gap:1.1rem}@media (min-width: 720px){.np .steps{grid-template-columns:repeat(3,1fr)}}.np .step{text-align:center;padding:1.75rem 1.25rem}.np .step__n{width:2.5rem;height:2.5rem;margin:0 auto .9rem;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:1.1rem;color:var(--color-primary);background:var(--color-primary-tint);border:1px solid #bfdbfe}.np .step h3{font-size:1.05rem;font-weight:700;color:var(--color-text-heading);margin:0 0 .4rem}.np .step p{margin:0;font-size:.9rem;color:var(--color-text-secondary)}.np .about{margin-top:2rem;max-width:52rem;margin-inline:auto}.np .about h3{font-size:1.2rem;font-weight:700;color:var(--color-text-heading);margin:0 0 .75rem}.np .about p{margin:0 0 1rem;color:var(--color-text-body);font-size:.98rem;line-height:1.65}.np .about p:last-child{margin-bottom:0}.np .about strong{color:var(--color-text-heading)}.np .privacy-line{margin-top:1.75rem;display:flex;align-items:center;gap:1rem;background:#ecfdf5;border:1px solid #a7f3d0}.np .privacy-line__icon{font-size:1.5rem;flex:0 0 auto}.np .privacy-line strong{color:#065f46}.np .privacy-line p{margin:0;color:#047857;font-size:.95rem}.np .foot{margin:2.5rem 0 1rem;padding-top:1.25rem;border-top:1px solid var(--color-border);text-align:center}.np .foot p{margin:0;font-size:.85rem}