@layer reset{*,:before,:after{box-sizing:border-box}html{color-scheme:dark}body,h1,h2,h3,p{margin:0}button,input{font:inherit}}@layer base{:root{--ink:#e9f8ff;--muted:#9db7c8;--night:#03111f;--deep:#071b2f;--panel:#082135eb;--panel-strong:#0b2a43;--line:#27526b;--cobalt:#397cff;--teal:#45e0c1;--yellow:#ffd479;--danger:#ffadad;--max:76rem;font-synthesis:none;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}body{min-width:20rem;min-height:100vh;color:var(--ink);background:linear-gradient(#397cff12 1px, transparent 1px), linear-gradient(90deg, #45e0c10f 1px, transparent 1px), radial-gradient(circle at 18% 0%, #103d69 0, transparent 35rem), var(--night);background-size:2rem 2rem,2rem 2rem,auto,auto;line-height:1.6}a{color:var(--teal);text-underline-offset:.2em}a:hover{color:#fff}:focus-visible{outline:.2rem solid var(--yellow);outline-offset:.2rem}h1,h2,h3{letter-spacing:-.025em;line-height:1.12}h1{max-width:16ch;font-size:clamp(2.3rem,7vw,5.4rem)}h2{font-size:clamp(1.55rem,4vw,2.4rem)}code,.mono{font-family:SFMono-Regular,Consolas,Liberation Mono,monospace}}@layer components{.skip-link{z-index:10;color:var(--night);background:var(--yellow);padding:.7rem 1rem;position:fixed;top:.5rem;left:.5rem;transform:translateY(-150%)}.skip-link:focus{transform:translateY(0)}.site-header,.site-footer{width:min(calc(100% - 2rem), var(--max));margin-inline:auto}.site-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:1.5rem;padding-block:1.4rem;display:flex}.brand{color:var(--ink);grid-template-columns:auto auto;align-items:center;gap:0 .65rem;font-weight:800;text-decoration:none;display:grid}.brand-mark{aspect-ratio:1;width:2.2rem;color:var(--night);background:var(--teal);border-radius:.45rem 1rem;grid-row:span 2;place-items:center;font-size:1.3rem;display:grid}.brand small{color:var(--muted);font-size:.72rem;font-weight:500}nav{flex-wrap:wrap;gap:.55rem 1.1rem;display:flex}nav a{color:var(--muted);font-size:.92rem}.hero,.content-shell{width:min(calc(100% - 2rem), var(--max));margin-inline:auto}.hero{padding-block:clamp(3rem,8vw,6.5rem) 2.5rem}.eyebrow{color:var(--teal);letter-spacing:.14em;text-transform:uppercase;margin-bottom:.8rem;font-family:SFMono-Regular,Consolas,monospace;font-size:.78rem;font-weight:700}.lede{max-width:58ch;color:var(--muted);margin-top:1.25rem;font-size:clamp(1.05rem,2vw,1.3rem)}.privacy-note{color:#bcf5e9;background:#45e0c117;border:1px solid #45e0c159;border-radius:999px;align-items:center;gap:.5rem;margin-top:1.4rem;padding:.45rem .75rem;font-size:.85rem;display:inline-flex}.tool-shell{width:min(calc(100% - 2rem), var(--max));margin-inline:auto;padding-bottom:4rem}.tool-panel,.results-panel,.prose-card,.info-card{background:var(--panel);border:1px solid var(--line);box-shadow:0 1.4rem 4rem #0000003d}.tool-panel{border-radius:1rem 3rem 1rem 1rem;padding:clamp(1.25rem,4vw,2.25rem);position:relative;overflow:hidden}.tool-panel:before{background:linear-gradient(90deg, var(--cobalt), var(--teal));content:"";width:9rem;height:.25rem;position:absolute;top:0;left:0}.field-label{margin-bottom:.55rem;font-weight:750;display:block}.field-hint{color:var(--muted);margin-top:.45rem;font-size:.88rem;display:block}.input-row{grid-template-columns:minmax(0,1fr) auto;gap:.75rem;display:grid}input{width:100%;min-height:3.25rem;color:var(--ink);background:#020d17;border:1px solid #4a7189;border-radius:.6rem;padding:.75rem 1rem;font-family:SFMono-Regular,Consolas,monospace;font-size:clamp(1rem,2.5vw,1.2rem)}input[aria-invalid=true]{border-color:var(--danger)}button,.button-link{min-height:2.75rem;color:var(--night);background:var(--teal);cursor:pointer;border:0;border-radius:.55rem;padding:.7rem 1rem;font-weight:800}button:hover,.button-link:hover{color:var(--night);background:#fff}button.secondary{color:var(--ink);border:1px solid var(--line);background:0 0}.examples{flex-wrap:wrap;gap:.55rem;margin-top:1rem;display:flex}.examples button{min-height:2.75rem;color:var(--teal);border:1px solid var(--line);background:0 0;padding:.4rem .7rem;font-family:SFMono-Regular,Consolas,monospace;font-size:.82rem}.error{color:var(--danger);margin-top:.75rem;font-weight:700}.results-panel{border-radius:1rem;margin-top:1rem;padding:clamp(1.25rem,4vw,2.25rem)}.result-heading{justify-content:space-between;align-items:start;gap:1rem;margin-bottom:1.5rem;display:flex}.result-heading p{color:var(--muted)}.result-grid{border-top:1px solid var(--line);border-left:1px solid var(--line);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.result-item{border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-width:0;padding:1rem}.result-item dt{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;font-size:.78rem;font-weight:750}.result-item dd{justify-content:space-between;align-items:center;gap:.6rem;min-width:0;margin:.35rem 0 0;display:flex}.result-value{overflow-wrap:anywhere;font-family:SFMono-Regular,Consolas,monospace;font-size:clamp(.92rem,2vw,1.08rem)}.copy-button{min-height:2.75rem;color:var(--muted);border:1px solid var(--line);background:0 0;padding:.3rem .55rem;font-size:.78rem}.semantics{color:#d7e9f4;border-left:.22rem solid var(--cobalt);background:#397cff1f;margin-top:1.2rem;padding:.85rem 1rem}.binary-card{background:#020d17;border-radius:.65rem;margin-top:1.5rem;padding:1rem;overflow-x:auto}.binary-card h3{margin-bottom:.9rem}.binary-scroll-hint{color:var(--muted);font-size:.78rem;display:none}.binary-row{grid-template-columns:5.5rem max-content;align-items:center;gap:.75rem;margin-block:.35rem;display:grid}.binary-label{color:var(--muted);text-transform:uppercase;font-size:.78rem}.binary-bits{letter-spacing:.02em;gap:.12rem;font-family:SFMono-Regular,Consolas,monospace;display:flex}.binary-bits .bit{color:#79aaff}.binary-bits .host-bit{color:var(--teal)}.binary-bits .octet-end{margin-right:.45rem}.binary-legend{color:var(--muted);gap:1rem;margin-top:.75rem;font-size:.8rem;display:flex}.binary-legend span:before{content:"";background:#79aaff;border-radius:50%;width:.65rem;height:.65rem;margin-right:.35rem;display:inline-block}.binary-legend .host:before{background:var(--teal)}.method-grid{width:min(calc(100% - 2rem), var(--max));grid-template-columns:repeat(3,1fr);gap:1rem;margin:0 auto 5rem;display:grid}.info-card{border-radius:.8rem;padding:1.4rem}.info-card p{color:var(--muted);margin-top:.75rem}.content-shell{padding-block:clamp(3rem,8vw,6rem)}.page-intro{margin-bottom:2rem}.page-intro h1{font-size:clamp(2.2rem,6vw,4.5rem)}.prose-card{border-radius:1rem;max-width:52rem;padding:clamp(1.3rem,5vw,2.7rem)}.prose-card>:not(:first-child){margin-top:1.15rem}.prose-card h2{margin-top:2rem}.prose-card ul,.prose-card ol{padding-left:1.3rem}.owner-action{color:#fff2d0;background:#ffd4791a;border:1px solid #ffd47973;border-radius:.65rem;padding:1rem}.site-footer{color:var(--muted);border-top:1px solid var(--line);grid-template-columns:1fr 2fr auto;align-items:start;gap:1.5rem;padding-block:2rem 3rem;display:grid}.site-footer p{margin-top:.35rem;font-size:.85rem}.review-date{white-space:nowrap}.ad-slot{color:var(--muted);border:1px dashed var(--line);text-align:center;background:#ffffff08;margin-block:2rem;padding:1rem}}@layer utilities{[hidden]{display:none!important}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}}@media (width<=48rem){.site-header,.site-footer{align-items:flex-start}.site-header{flex-direction:column}.brand small{display:none}.input-row,.result-grid,.method-grid,.site-footer{grid-template-columns:1fr}.result-heading{flex-direction:column}.binary-row{grid-template-columns:1fr;gap:.1rem}.binary-bits{gap:.08rem;font-size:.72rem}.binary-bits .octet-end{margin-right:.25rem}.binary-scroll-hint{display:block}.review-date{white-space:normal}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}