:root{color-scheme:light;--page:#e8f3f3;--surface:#fff;--ink:#102529;--muted:#52666b;--line:#c7dcdd;--accent:#166c7d;--accent-strong:#0e4b58;--accent-soft:#d4eff0;--button-ink:#fff;--shadow:0 18px 48px #082e381f}
@media(prefers-color-scheme:dark){:root{color-scheme:dark;--page:#071c22;--surface:#0e2931;--ink:#edf9f9;--muted:#b2cbcc;--line:#2c4f57;--accent:#61cfd8;--accent-strong:#9de8ef;--accent-soft:#153e47;--button-ink:#071c22;--shadow:0 22px 56px #00000047}}
:root[data-theme=light]{color-scheme:light;--page:#e8f3f3;--surface:#fff;--ink:#102529;--muted:#52666b;--line:#c7dcdd;--accent:#166c7d;--accent-strong:#0e4b58;--accent-soft:#d4eff0;--button-ink:#fff;--shadow:0 18px 48px #082e381f}
:root[data-theme=dark]{color-scheme:dark;--page:#071c22;--surface:#0e2931;--ink:#edf9f9;--muted:#b2cbcc;--line:#2c4f57;--accent:#61cfd8;--accent-strong:#9de8ef;--accent-soft:#153e47;--button-ink:#071c22;--shadow:0 22px 56px #00000047}
*{box-sizing:border-box}html{background:var(--page)}body{min-height:100vh;margin:0;background:radial-gradient(circle at 92% 4%,var(--accent-soft),transparent 28rem),var(--page);color:var(--ink);font:1rem/1.5 Aptos,"Segoe UI Variable","Segoe UI",sans-serif}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible{outline:.2rem solid var(--accent);outline-offset:.2rem}.nf-shell{min-height:100vh;display:flex;flex-direction:column}.nf-header{width:min(100%,76rem);margin:0 auto;padding:1.25rem clamp(1rem,3vw,2rem);display:flex;align-items:center;justify-content:space-between;gap:1rem}.nf-brand{display:inline-flex;align-items:center;gap:.75rem;color:var(--ink);font-size:1.15rem;font-weight:800;text-decoration:none}.nf-brand img{border-radius:.75rem;box-shadow:var(--shadow)}.nf-theme{width:48px;height:48px;flex:none;border:1px solid var(--line);border-radius:50%;background:var(--surface);color:var(--ink);font:inherit}.nf-theme:hover{background:var(--accent-soft)}.nf-main{width:min(100%,76rem);margin:auto;padding:2rem clamp(1rem,3vw,2rem) 5rem;display:grid;align-items:center;gap:clamp(2rem,6vw,5rem)}.nf-signal{min-height:17rem;position:relative;overflow:hidden;border:1px solid var(--line);border-radius:2rem;background:linear-gradient(150deg,var(--surface),var(--accent-soft));display:grid;place-items:center}.nf-signal:before{content:"";position:absolute;width:18rem;height:18rem;border:2.5rem solid var(--accent-soft);border-radius:50%;top:-7rem;right:-5rem}.nf-code{position:relative;z-index:1;color:var(--accent-strong);font-size:clamp(6rem,18vw,11rem);line-height:1;font-weight:850;letter-spacing:-.1em}.nf-signal svg{position:absolute;width:70%;max-width:25rem;bottom:1rem;fill:none;stroke:var(--accent);stroke-width:4;stroke-linecap:round;stroke-linejoin:round;opacity:.5}.nf-signal circle{fill:var(--accent);stroke:none}.nf-copy{min-width:0}.nf-copy h1{margin:0;font-size:clamp(2.3rem,6vw,4.5rem);line-height:1.05;letter-spacing:-.055em;font-weight:800}.nf-copy p{max-width:34rem;margin:1.25rem 0 0;color:var(--muted);font-size:clamp(1rem,2vw,1.2rem)}.nf-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:2rem}.nf-actions a{min-height:48px;display:inline-flex;align-items:center;justify-content:center;border-radius:.9rem;padding:.7rem 1.1rem;font-weight:800;text-decoration:none}.nf-primary{background:var(--accent);color:var(--button-ink)}.nf-primary:hover{background:var(--accent-strong)}.nf-secondary{border:1px solid var(--line);background:var(--surface);color:var(--accent-strong)}.nf-secondary:hover{background:var(--accent-soft)}
@media(min-width:780px){.nf-main{grid-template-columns:minmax(0,.9fr) minmax(0,1fr)}.nf-signal{min-height:23rem}}
@media(max-width:374px){.nf-actions{display:grid}.nf-signal{min-height:14rem}}
@media(prefers-reduced-motion:reduce){.nf-theme,.nf-actions a{transition:none}}