.nf{--nf-bg:#f3f4f6;--nf-ink:#4b5563;--nf-soft:#4b5563;--nf-field:#ffffff;--nf-red:#ef4444;--nf-blue:#0261ce;position:relative;min-height:100vh;background:var(--nf-bg);color:var(--nf-ink)}.nf.is-dark{--nf-bg:#152e4d;--nf-ink:#edf2f9;--nf-soft:#d1d5db;--nf-field:#12263f;--nf-red:#dc2626;--nf-blue:#1d4ed8}.nf-main{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:16px}.nf-box{display:grid;gap:16px;width:100%;max-width:640px}.nf-row{display:flex;flex-direction:column;align-items:flex-start;gap:12px}.nf-code{margin:0;font-size:8rem;line-height:1;font-weight:600;color:var(--nf-red)}.nf-text{display:grid;gap:8px}.nf-text h1{display:flex;align-items:center;gap:8px;margin:0;font-size:1.4rem;font-weight:500;color:var(--nf-ink)}.nf-text h1 svg{flex:none;color:var(--nf-red)}.nf-text p{margin:0;font-size:1rem;color:var(--nf-soft)}.nf-text a{color:var(--nf-blue)}.nf-text a:hover{text-decoration:underline}.nf form{display:flex}.nf input[type=search]{flex:1;min-width:0;height:44px;padding:0 16px;border:0;border-start-start-radius:6px;border-end-start-radius:6px;background:var(--nf-field);color:var(--nf-ink);font:inherit}.nf input[type=search]:focus{outline:3px solid color-mix(in srgb,var(--nf-blue) 45%,transparent)}.nf form button{display:grid;place-items:center;width:48px;border:0;border-start-end-radius:6px;border-end-end-radius:6px;background:var(--nf-blue);color:#fff;cursor:pointer}.nf form button:hover{filter:brightness(.92)}.nf-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.nf-theme{position:fixed;inset-block-end:20px;inset-inline-start:20px;display:grid;place-items:center;width:46px;height:46px;border:0;border-radius:50%;background:var(--nf-blue);color:#fff;box-shadow:0 6px 16px rgba(0,0,0,.2);cursor:pointer}@media (min-width:640px){.nf-row{flex-direction:row;align-items:center;gap:12px}.nf-text h1{font-size:1.5rem}}