.nbc{--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}.nbc *{box-sizing:border-box}.nbc-container{max-width:60rem;margin-inline:auto;padding-inline:1rem;padding-bottom:1rem}@media (min-width: 640px){.nbc-container{padding-inline:1.5rem}}@media (min-width: 1024px){.nbc-container{padding-inline:2rem}}.nbc .card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-card);box-shadow:var(--shadow-card);padding:1.5rem}.nbc .card--raised{box-shadow:var(--shadow-raised)}.nbc .btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;background:var(--color-primary);color:#fff;font-weight:600;padding:.55rem 1.25rem;border-radius:var(--radius-input);border:0;cursor:pointer;text-decoration:none;transition:.15s;font-size:1rem}.nbc .btn:hover{background:var(--color-primary-hover)}.nbc .btn:focus-visible{outline:2px solid var(--color-primary-ring);outline-offset:2px}.nbc .btn:disabled{opacity:.5;cursor:not-allowed}.nbc .btn--sm{padding:.38rem .8rem;font-size:.82rem}.nbc .btn--ghost{background:var(--color-surface);color:var(--color-text-body);border:1px solid var(--color-border-input)}.nbc .btn--ghost:hover:not(:disabled){background:var(--color-surface-muted)}.nbc label.field{display:block;font-size:.875rem;font-weight:600;color:var(--color-text-body);margin-bottom:.4rem}.nbc label.field--inline{display:inline;margin-bottom:0}.nbc .input{width:100%;padding:.7rem .8rem;border:1px solid var(--color-border-input);border-radius:var(--radius-input);background:var(--color-surface);color:var(--color-text-heading);font-size:.95rem;font-family:inherit}.nbc .input:focus{outline:2px solid var(--color-primary-ring);outline-offset:1px;border-color:var(--color-primary-ring)}.nbc .mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.01em;word-break:break-all}.nbc .out{background:var(--color-surface-muted)}.nbc .input.is-invalid{border-color:#f87171;outline-color:#f87171}.nbc .select{cursor:pointer}.nbc h2.section{font-size:1.5rem;font-weight:700;color:var(--color-text-heading);letter-spacing:-.01em;margin:0}.nbc .muted{color:var(--color-text-muted)}.nbc code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.85em;background:var(--color-surface-muted);border:1px solid var(--color-border);border-radius:.35rem;padding:.05rem .3rem}.nbc .stack{margin-top:2rem;display:grid;gap:1.25rem}.nbc .in-head{display:flex;align-items:flex-end;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-bottom:.4rem}.nbc .in-head .field{margin-bottom:0}.nbc .base-pick{display:inline-flex;align-items:center;gap:.5rem;flex-wrap:wrap}.nbc .base-pick .select{width:auto;padding:.4rem .6rem;font-size:.85rem}.nbc .custom-base{width:5rem;padding:.4rem .6rem;font-size:.85rem}.nbc .io .input.mono{font-size:1.05rem;padding:.8rem .9rem}.nbc .results{margin-top:1.5rem;display:grid;grid-template-columns:1fr;gap:1rem}@media (min-width: 640px){.nbc .results{grid-template-columns:repeat(2,1fr)}}.nbc .result__head{display:flex;align-items:center;justify-content:space-between;gap:.5rem;margin-bottom:.35rem}.nbc .result__label{font-size:.875rem;font-weight:600;color:var(--color-text-body);display:inline-flex;align-items:center;gap:.4rem}.nbc .result__base{font-size:.75rem;font-weight:500;color:var(--color-text-muted)}.nbc .out{font-size:.95rem}.nbc .custom-out{margin-top:1.25rem;padding-top:1.25rem;border-top:1px dashed var(--color-border)}.nbc .tiny-base{width:3.6rem;padding:.2rem .35rem;font-size:.8rem;text-align:center;display:inline-block}.nbc .actions{margin-top:1.25rem;display:flex;justify-content:flex-end}.nbc .note{margin:.7rem 0 0;padding:.65rem .8rem;border-radius:var(--radius-input);font-size:.84rem;line-height:1.45;background:var(--color-primary-tint);color:var(--color-primary-hover);border:1px solid #bfdbfe}.nbc .note--warn{background:#fffbeb;color:#b45309;border-color:#fde68a}.nbc .how{margin-top:3.25rem}.nbc .how h2.section{text-align:center}.nbc .how__lead{text-align:center;color:var(--color-text-secondary);margin:.6rem auto 1.75rem;max-width:46rem}.nbc .steps{display:grid;grid-template-columns:1fr;gap:1.1rem}@media (min-width: 720px){.nbc .steps{grid-template-columns:repeat(3,1fr)}}.nbc .step{text-align:center;padding:1.75rem 1.25rem}.nbc .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}.nbc .step h3{font-size:1.05rem;font-weight:700;color:var(--color-text-heading);margin:0 0 .4rem}.nbc .step p{margin:0;font-size:.9rem;color:var(--color-text-secondary)}.nbc .privacy-line{margin-top:1.75rem;display:flex;align-items:center;gap:1rem;background:#ecfdf5;border:1px solid #a7f3d0}.nbc .privacy-line__icon{font-size:1.5rem;flex:0 0 auto}.nbc .privacy-line strong{color:#065f46}.nbc .privacy-line p{margin:0;color:#047857;font-size:.95rem}.nbc .foot{margin:2.5rem 0 1rem;padding-top:1.25rem;border-top:1px solid var(--color-border);text-align:center}.nbc .foot p{margin:0;font-size:.85rem}