:root{--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-mono:ui-monospace, "SF Mono", "SFMono-Regular", "Menlo", "Consolas", "Liberation Mono", monospace;--bg:#fff;--bg-subtle:#f6f8fa;--bg-code:#f4f6f8;--panel:#fff;--border:#e2e7ec;--border-strong:#cdd5dd;--text:#1a2027;--text-muted:#5a6570;--text-faint:#8a95a1;--accent:#0891b2;--accent-hover:#0e7490;--accent-soft:#ecfbff;--accent-border:#b6e6f0;--ok:#0f7b3f;--ok-soft:#eafaf0;--warn:#9a5b00;--warn-soft:#fdf4e3;--radius:8px;--radius-lg:12px;--shadow:0 1px 2px #1018200a, 0 2px 8px #1018200a;--maxw:1080px}:root[data-theme=dark]{--bg:#0d1117;--bg-subtle:#131a22;--bg-code:#0b1017;--panel:#131a22;--border:#242c36;--border-strong:#313b47;--text:#e6edf3;--text-muted:#9aa7b4;--text-faint:#6b7885;--accent:#22b8d6;--accent-hover:#38c7e3;--accent-soft:#0e2730;--accent-border:#164b59;--ok:#3fb950;--ok-soft:#10251a;--warn:#d29922;--warn-soft:#241c0e;--shadow:0 1px 2px #0006, 0 2px 10px #0000004d}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:76px;scroll-padding-bottom:16px}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}body{font-family:var(--font-sans);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;margin:0;font-size:16px;line-height:1.6}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover);text-decoration:underline}h1,h2,h3,h4{color:var(--text);letter-spacing:-.01em;font-weight:700;line-height:1.25}h1{margin:0 0 12px;font-size:clamp(1.75rem,1.3rem + 1.8vw,2.4rem)}h2{margin:40px 0 14px;font-size:1.35rem}h3{margin:24px 0 8px;font-size:1.08rem}code,kbd,samp,.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}.container{max-width:var(--maxw);margin:0 auto;padding:32px 24px 72px}.container-narrow{max-width:760px}.site-header{z-index:20;background:color-mix(in srgb, var(--bg) 88%, transparent);-webkit-backdrop-filter:saturate(1.4)blur(8px);backdrop-filter:saturate(1.4)blur(8px);border-bottom:1px solid var(--border);position:sticky;top:0}.site-header .inner{max-width:var(--maxw);justify-content:space-between;align-items:center;margin:0 auto;padding:12px 24px;display:flex}.brand{min-height:32px;color:var(--text);letter-spacing:-.02em;border-radius:6px;align-items:center;gap:9px;font-size:1.12rem;font-weight:700;display:inline-flex}.brand:hover{color:var(--text);text-decoration:none}.brand-mark{flex:none;width:28px;height:28px;display:block}.brand-mark-tile{fill:var(--accent-soft);stroke:var(--accent-border);stroke-width:1.5px}.brand-mark-net{fill:var(--accent)}.brand-mark-host{fill:var(--text-faint);opacity:.45}.brand-name{white-space:nowrap}.header-right{align-items:center;gap:6px;display:flex}.nav-links{gap:4px;margin-right:6px;display:flex}.nav-links a{min-height:32px;color:var(--text-muted);border-radius:6px;align-items:center;padding:4px 10px;font-size:.94rem;font-weight:500;display:inline-flex}.nav-links a:hover{color:var(--text);background:var(--bg-subtle);text-decoration:none}.theme-toggle{border:1px solid var(--border);background:var(--panel);width:34px;height:34px;color:var(--text-muted);cursor:pointer;border-radius:7px;justify-content:center;align-items:center;display:inline-flex}.theme-toggle:hover{color:var(--text);border-color:var(--border-strong)}.mobile-nav{display:none;position:relative}.mobile-nav-toggle{border:1px solid var(--border);background:var(--panel);width:34px;height:34px;color:var(--text-muted);cursor:pointer;border-radius:7px;justify-content:center;align-items:center;display:inline-flex}.mobile-nav-toggle:hover{color:var(--text);border-color:var(--border-strong)}.mobile-nav-menu{z-index:30;border:1px solid var(--border);border-radius:var(--radius);background:var(--panel);min-width:170px;box-shadow:var(--shadow);flex-direction:column;gap:2px;padding:6px;display:flex;position:absolute;top:calc(100% + 8px);right:0}.mobile-nav-menu a{color:var(--text);border-radius:6px;padding:10px 12px;font-size:.95rem;font-weight:500}.mobile-nav-menu a:hover{background:var(--bg-subtle);color:var(--text);text-decoration:none}.crumbs{color:var(--text-faint);flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:18px;font-size:.86rem;display:flex}.crumbs a{color:var(--text-muted)}.crumbs .sep{color:var(--text-faint)}.page-head{margin-bottom:22px}.page-head .lede{color:var(--text-muted);max-width:68ch;margin:0;font-size:1.08rem}.eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:8px;font-size:.75rem;font-weight:700;display:inline-block}.hero{padding:0}.hero h1{margin:0 0 6px}.hero p{max-width:64ch;color:var(--text-muted);margin:0;font-size:1.02rem}.home-calc{margin:18px 0 8px}.home-prose{margin-top:8px}.calc{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--panel);box-shadow:var(--shadow);overflow:hidden}.calc-input-row{border-bottom:1px solid var(--border);background:var(--bg-subtle);flex-wrap:wrap;gap:10px;padding:18px;display:flex}.calc-input-row .field{flex:260px;min-width:0}label.field-label{color:var(--text-muted);letter-spacing:.01em;margin-bottom:6px;font-size:.78rem;font-weight:600;display:block}input[type=text],input[type=number],input[type=email],select,textarea{width:100%;font-family:var(--font-mono);border:1px solid var(--border-strong);border-radius:var(--radius);background:var(--bg);color:var(--text);padding:11px 13px;font-size:1rem}input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb, var(--accent) 32%, transparent);outline:none}select{cursor:pointer}textarea{resize:vertical;min-height:96px;line-height:1.5}.field-note{color:var(--text-faint);margin-top:6px;font-size:.8rem}.field-error{color:var(--warn);margin-top:8px;font-size:.85rem}.results{padding:6px 4px}.result-grid{background:var(--border);border-radius:var(--radius);grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1px;display:grid;overflow:hidden}.result-cell{background:var(--panel);flex-direction:column;gap:3px;min-width:0;padding:13px 16px;display:flex}.result-cell .k{color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;font-size:.75rem;font-weight:600}.result-cell .v{font-family:var(--font-mono);color:var(--text);word-break:break-all;align-items:center;gap:6px;font-size:.98rem;display:flex}.result-cell .v.accent{color:var(--accent);font-weight:600}.copy-inline{color:var(--text-faint);cursor:pointer;background:0 0;border:none;border-radius:6px;flex:none;justify-content:center;align-items:center;min-width:32px;min-height:32px;padding:8px;display:inline-flex}.copy-inline:hover{color:var(--accent);background:var(--bg-subtle)}.copy-inline.is-copied,.copy-inline.is-copied:hover{color:var(--ok)}.binary-row{border-top:1px solid var(--border);gap:8px;padding:14px 16px;display:grid}.binary-row .bin-line{flex-wrap:wrap;align-items:baseline;gap:10px;font-size:.85rem;display:flex}.binary-row .bin-line .lbl{color:var(--text-muted);min-width:92px;font-weight:600}.binary-row code{color:var(--text);letter-spacing:.02em;word-break:break-all;font-size:.85rem}.binary-row .netbits{color:var(--accent);font-weight:700}.btn{font-family:var(--font-sans);border-radius:var(--radius);border:1px solid var(--accent);background:var(--accent);color:#fff;cursor:pointer;align-items:center;gap:7px;padding:10px 16px;font-size:.95rem;font-weight:600;display:inline-flex}.btn:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:#fff;text-decoration:none}.btn-ghost{background:var(--panel);color:var(--text);border-color:var(--border-strong)}.btn-ghost:hover{background:var(--bg-subtle);color:var(--text);border-color:var(--border-strong)}.copy-btn{border:1px solid var(--border-strong);background:var(--panel);color:var(--text-muted);cursor:pointer;border-radius:6px;align-items:center;gap:6px;padding:6px 10px;font-size:.82rem;font-weight:600;display:inline-flex}.copy-btn:hover{color:var(--accent);border-color:var(--accent-border)}.copy-btn:disabled{cursor:not-allowed;opacity:.5}.copy-btn:disabled:hover{color:var(--text-muted);border-color:var(--border-strong)}.examples{flex-wrap:wrap;align-items:center;gap:8px;margin-top:14px;font-size:.88rem;display:flex}.examples .lbl{color:var(--text-faint)}.chip{font-family:var(--font-mono);border:1px solid var(--border);background:var(--bg-subtle);color:var(--text-muted);cursor:pointer;border-radius:999px;align-items:center;min-height:44px;padding:4px 10px;font-size:.85rem;display:inline-flex}.chip:hover{border-color:var(--accent-border);color:var(--accent);background:var(--accent-soft)}.chip-ghost{color:var(--text-faint);font-family:var(--font-sans);background:0 0;border-color:#0000;text-decoration:underline}.chip-ghost:hover{color:var(--warn);background:0 0;border-color:#0000}.mode-toggle{background:var(--bg-subtle);gap:1px;padding:8px 8px 0;display:flex}.mode-btn{min-height:44px;font-family:var(--font-sans);border:1px solid var(--border);border-radius:var(--radius) var(--radius) 0 0;color:var(--text-muted);cursor:pointer;background:0 0;border-bottom:none;flex:1 1 0;justify-content:center;align-items:center;gap:6px;padding:8px 12px;font-size:.85rem;font-weight:600;display:inline-flex}.mode-btn.active{background:var(--panel);color:var(--accent);border-color:var(--border-strong)}.results-head{justify-content:flex-end;padding:8px 12px 0;display:flex}.batch-results{margin-top:16px}.batch-results-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px;display:flex}.batch-list{border:1px solid var(--border);border-radius:var(--radius);margin:0;padding:0;list-style:none;overflow:hidden}.batch-row{border-bottom:1px solid var(--border);background:var(--panel);padding:10px 14px}.batch-row:last-child{border-bottom:none}.batch-row-cidr{font-weight:600}.batch-row-detail{font-family:var(--font-mono);color:var(--text-muted);word-break:break-word;margin-top:2px;font-size:.82rem;display:block}.prose{max-width:72ch}.prose p{color:var(--text);margin:0 0 14px}.prose ul,.prose ol{color:var(--text);padding-left:22px}.prose li{margin:6px 0}.prose code{background:var(--bg-code);border:1px solid var(--border);border-radius:5px;padding:1px 6px;font-size:.9em}.lede{color:var(--text-muted);font-size:1.08rem}.card-grid{grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;margin:18px 0;display:grid}.tool-card{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--panel);padding:18px;transition:border-color .12s,transform .12s;display:block}.tool-card:hover{border-color:var(--accent-border);text-decoration:none;transform:translateY(-1px)}.tool-card .ic{background:var(--accent-soft);width:36px;height:36px;color:var(--accent);border-radius:8px;justify-content:center;align-items:center;margin-bottom:10px;display:inline-flex}.tool-card h3{color:var(--text);margin:0 0 4px;font-size:1rem}.tool-card p{color:var(--text-muted);margin:0;font-size:.88rem}.table-wrap{border:1px solid var(--border);border-radius:var(--radius);margin:16px 0;overflow-x:auto}table.data{border-collapse:collapse;width:100%;min-width:520px;font-size:.9rem}table.data th,table.data td{text-align:left;border-bottom:1px solid var(--border);white-space:nowrap;padding:9px 14px}table.data thead th{background:var(--bg-subtle);text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);font-size:.78rem;position:sticky;top:0}table.data tbody tr:hover{background:var(--bg-subtle)}table.data tbody tr[id]{scroll-margin-top:12px}table.data td{font-variant-numeric:tabular-nums}table.data tbody tr:target{background:var(--accent-soft)}table.data td.mono,table.data th.mono{font-family:var(--font-mono)}table.data td.wrap{white-space:normal;min-width:260px}table.data td a{font-weight:600}table.data tr:last-child td{border-bottom:none}.callout{border:1px solid var(--accent-border);background:var(--accent-soft);border-radius:var(--radius);color:var(--text);gap:12px;margin:18px 0;padding:14px 16px;font-size:.94rem;display:flex}.callout-icon{color:var(--accent);flex:none;margin-top:1px}.callout.warn{border-color:color-mix(in srgb, var(--warn) 40%, var(--border));background:var(--warn-soft)}.callout.warn .callout-icon{color:var(--warn)}.faq-item{border-top:1px solid var(--border);padding:16px 0}.faq-item:first-of-type{border-top:none}.faq-item h3{margin:0 0 6px;font-size:1rem}.faq-item p{color:var(--text-muted);margin:0}.related{border-top:1px solid var(--border);margin-top:40px;padding-top:22px}.taglist{flex-wrap:wrap;gap:9px;margin-top:12px;display:flex}.taglist a{border:1px solid var(--border);background:var(--panel);color:var(--text-muted);border-radius:999px;align-items:center;gap:6px;padding:7px 13px;font-size:.9rem;display:inline-flex}.taglist a:hover{border-color:var(--accent-border);color:var(--accent);background:var(--accent-soft);text-decoration:none}pre.code{background:var(--bg-code);border:1px solid var(--border);border-radius:var(--radius);font-family:var(--font-mono);color:var(--text);margin:14px 0;padding:16px;font-size:.86rem;line-height:1.55;overflow-x:auto}.stat-strip{background:var(--border);border:1px solid var(--border);border-radius:var(--radius);grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1px;margin:16px 0;display:grid;overflow:hidden}.stat{background:var(--panel);padding:14px 16px}.stat .num{font-family:var(--font-mono);color:var(--accent);font-size:1.3rem;font-weight:700}.stat .lbl{color:var(--text-muted);font-size:.8rem}.section-head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:12px;margin:40px 0 4px;display:flex}.section-head h2{margin:0}.section-head a{font-size:.9rem}.site-footer{border-top:1px solid var(--border);background:var(--bg-subtle);margin-top:40px}.site-footer .container{padding-top:40px;padding-bottom:40px}.footer-top{grid-template-columns:1.4fr 2fr;gap:32px;display:grid}.footer-brand p{color:var(--text-muted);max-width:40ch;font-size:.9rem}.footer-cols{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}.footer-col h4{text-transform:uppercase;letter-spacing:.05em;color:var(--text-faint);margin:0 0 10px;font-size:.78rem}.footer-col a{color:var(--text-muted);padding:3px 0;font-size:.9rem;display:block}.footer-col a:hover{color:var(--accent);text-decoration:none}.footer-note{border-top:1px solid var(--border);color:var(--text-faint);flex-wrap:wrap;justify-content:space-between;gap:16px;margin-top:28px;padding-top:18px;font-size:.85rem;display:flex}.footer-note a{color:var(--text-muted)}@media (max-width:720px){.footer-top{grid-template-columns:1fr;gap:24px}.footer-cols{grid-template-columns:repeat(2,1fr)}h2{font-size:1.22rem}}@media (max-width:640px){.nav-links{display:none}.mobile-nav{display:block}}.visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.skip-link{z-index:100;border-radius:var(--radius);background:var(--text);color:var(--bg);padding:10px 16px;font-weight:600;position:absolute;top:8px;left:8px;transform:translateY(calc(-100% - 16px))}.skip-link:focus,.skip-link:hover{color:var(--bg);text-decoration:none;transform:none}#main-content:focus{outline:none}.nf-search{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--bg-subtle);margin:8px 0;padding:18px}.nf-label{color:var(--text);margin-bottom:10px;font-weight:600;display:block}.nf-row{gap:8px;display:flex}.nf-row input{flex:1;min-width:0}.nf-row .btn{flex:none}.nf-note{color:var(--text-muted);margin:12px 0 0;font-size:.92rem}.nf-links{gap:6px;margin:12px 0 0;padding:0;list-style:none;display:grid}.nf-links a{border:1px solid var(--border);border-radius:var(--radius);background:var(--panel);min-height:44px;color:var(--text);flex-wrap:wrap;align-items:baseline;gap:2px 10px;padding:10px 12px;display:flex}.nf-links a:hover{border-color:var(--accent-border);background:var(--accent-soft);color:var(--text);text-decoration:none}.nf-link-label{color:var(--accent);font-weight:600}.nf-link-detail{color:var(--text-muted);font-variant-numeric:tabular-nums;font-size:.88rem}.nf-palette{margin-top:12px}.notfound .related{margin-top:32px}.notfound-subhead{margin:0 0 4px;font-size:1.05rem}.contact-form{flex-direction:column;gap:16px;max-width:480px;margin:8px 0 24px;display:flex}.contact-form .btn{align-self:flex-start}.hp-field{width:1px;height:1px;position:absolute;top:auto;left:-9999px;overflow:hidden}.ad-slot{border:1px dashed var(--border-strong);border-radius:var(--radius);background:var(--bg-subtle);color:var(--text-faint);justify-content:center;align-items:center;margin:24px 0;display:flex}.ad-slot-label{text-transform:uppercase;letter-spacing:.06em;font-size:.75rem;font-weight:600}.consent-banner{z-index:30;border:1px solid var(--border-strong);border-radius:var(--radius-lg);background:var(--panel);max-width:560px;box-shadow:var(--shadow);color:var(--text-muted);margin:0 auto;padding:14px 18px;font-size:.86rem;position:fixed;bottom:16px;left:16px;right:16px}.consent-banner p{margin:0}.badge{border:1px solid var(--border);background:var(--bg-subtle);color:var(--text-muted);border-radius:999px;align-items:center;gap:5px;padding:2px 8px;font-size:.74rem;font-weight:600;display:inline-flex}.badge.secure{color:var(--ok);border-color:color-mix(in srgb, var(--ok) 35%, var(--border));background:var(--ok-soft)}.badge.accent{color:var(--accent);border-color:var(--accent-border);background:var(--accent-soft)}.badge.warn{color:var(--warn);border-color:color-mix(in srgb, var(--warn) 40%, var(--border));background:var(--warn-soft)}.maskbits{margin:22px 0 8px}.maskbits-bar{font-family:var(--font-mono);flex-wrap:wrap;gap:10px;font-size:.78rem;line-height:1;display:flex}.maskbits-octet{display:flex}.maskbits-bit{text-align:center;border:1px solid #0000;width:1.15em;padding:7px 0}.maskbits-bit.is-network{background:var(--accent-soft);color:var(--accent-hover);border-color:var(--accent-border)}.maskbits-bit.is-host{background:var(--bg-subtle);color:var(--text-muted);border-color:var(--border)}.maskbits-bit.is-boundary{box-shadow:-5px 0 0 -3px var(--text);margin-left:8px}.maskbits-legend{color:var(--text-muted);flex-wrap:wrap;gap:16px;margin-top:10px;font-size:.85rem;display:flex}.maskbits-legend>span{align-items:center;gap:7px;display:inline-flex}.maskbits-key{border:1px solid var(--border);border-radius:3px;width:12px;height:12px}.maskbits-key.is-network{background:var(--accent-soft);border-color:var(--accent-border)}.maskbits-key.is-host{background:var(--bg-subtle)}.verified{color:var(--text-muted);margin:6px 0 0;font-size:.85rem}.toc{background:var(--bg-subtle);border:1px solid var(--border);border-radius:var(--radius);margin:24px 0 8px;padding:16px 20px}.toc h2{margin:0 0 8px;font-size:.95rem}.toc ol{columns:2;column-gap:28px;margin:0;padding-left:20px}.toc li{break-inside:avoid;margin:3px 0}@media (max-width:640px){.toc ol{columns:1}}@media (max-width:480px){.container,.site-header .inner{padding-left:16px;padding-right:16px}}.calc-bar{border-bottom:1px solid var(--border);background:var(--panel);justify-content:space-between;align-items:center;gap:8px;padding:0 8px;display:flex}.calc-tabs{scrollbar-width:none;gap:2px;min-width:0;display:flex;overflow-x:auto}.calc-tabs::-webkit-scrollbar{display:none}.calc-tab{min-height:46px;color:var(--text-muted);font-family:var(--font-sans);white-space:nowrap;cursor:pointer;background:0 0;border:none;align-items:center;gap:7px;padding:8px 14px;font-size:.9rem;font-weight:600;transition:color .15s,box-shadow .15s;display:inline-flex;box-shadow:inset 0 -2px #0000}.calc-tab:hover{color:var(--text);box-shadow:inset 0 -2px 0 var(--border-strong)}.calc-tab[aria-selected=true]{color:var(--accent);box-shadow:inset 0 -2px 0 var(--accent)}.calc-tab:focus-visible{outline-offset:-3px;border-radius:6px}.calc-kbd{border-radius:var(--radius);width:40px;height:40px;color:var(--text-faint);cursor:pointer;background:0 0;border:1px solid #0000;flex:none;justify-content:center;align-items:center;padding:0;display:inline-flex}.calc-kbd:hover{color:var(--accent);background:var(--bg-subtle)}@media (hover:none) and (pointer:coarse){.calc-kbd{display:none}}.calc-pad{padding:18px}.calc-panel-msg{min-height:160px;color:var(--text-muted);flex-wrap:wrap;align-items:center;gap:12px;padding:24px 18px;display:flex}.calc-panel-msg p{margin:0}.calc-spinner{border:2px solid var(--border-strong);border-top-color:var(--accent);border-radius:50%;width:18px;height:18px;animation:.8s linear infinite calc-spin}@keyframes calc-spin{to{transform:rotate(360deg)}}.calc-entry{align-items:stretch;gap:8px;display:flex}.calc-entry input{flex:auto;min-width:0}.prefix-stepper{border:1px solid var(--border-strong);border-radius:var(--radius);background:var(--bg);flex:none;align-items:stretch;display:inline-flex;overflow:hidden}.stepper-btn{width:42px;min-height:44px;color:var(--text-muted);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;padding:0;display:inline-flex}.stepper-btn:hover:not(:disabled){color:var(--accent);background:var(--accent-soft)}.stepper-btn:disabled{color:var(--text-faint);opacity:.45;cursor:not-allowed}.stepper-btn:focus-visible{outline-offset:-3px}.stepper-val{border-left:1px solid var(--border);border-right:1px solid var(--border);min-width:4.2ch;font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:var(--accent);justify-content:center;align-items:center;padding:0 2px;font-weight:700;display:inline-flex}.stepper-val.is-stale{color:var(--text-faint)}.calc-error{align-items:flex-start;gap:7px;margin:8px 0 0;display:flex}.calc-error svg{flex:none;margin-top:2px}.calc-results{padding:18px 18px 6px}.calc-results>*+*{margin-top:16px}.calc-results .binary-row{margin-left:-18px;margin-right:-18px;padding-left:18px;padding-right:18px}.calc-callout{margin-bottom:0}.calc-results.is-stale>:not(.calc-stale-note){filter:grayscale();opacity:.55}.calc-stale-note{color:var(--text-muted);margin:0;font-size:.85rem}.res-head{gap:6px;min-width:0;display:grid;container-type:inline-size}.res-top{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 12px;display:flex}.res-title{flex-wrap:wrap;align-items:center;gap:6px 12px;min-width:0;display:flex}.res-cidr{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.02em;color:var(--text);overflow-wrap:anywhere;font-size:clamp(1.4rem,1.05rem + 1.6vw,2.1rem);font-weight:700;line-height:1.15}.res-cidr-pfx{color:var(--accent)}.res-badge{min-height:26px;padding:3px 10px;font-size:.78rem}a.res-badge:hover{border-color:currentColor;text-decoration:none}.res-actions{align-items:center;gap:8px;margin-left:auto;display:flex}.res-flash{color:var(--text-muted);white-space:nowrap;font-size:.82rem}.res-actions .copy-btn{min-height:36px;padding:6px 12px}.icon-btn{border:1px solid var(--border-strong);background:var(--panel);min-width:36px;min-height:36px;color:var(--text-muted);cursor:pointer;border-radius:6px;justify-content:center;align-items:center;padding:0;display:inline-flex}.icon-btn:hover:not(:disabled){color:var(--accent);border-color:var(--accent-border)}.icon-btn.is-on{color:var(--accent);border-color:var(--accent-border);background:var(--accent-soft)}.icon-btn:disabled{opacity:.5;cursor:not-allowed}.res-line{color:var(--text-muted);white-space:nowrap;scrollbar-width:thin;font-size:clamp(.78rem,4.3cqi,1.08rem);line-height:1.5;overflow:auto hidden}.res-num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:var(--text)}.res-hosts .res-num{font-weight:700}.res-sep{color:var(--text-faint)}.bitbar{margin:0}.bitbar-track{gap:2px;padding:4px 0;display:flex}.bitbar-seg{background:var(--border-strong);border-radius:2px;flex:1 1 0;height:12px;transition:background-color .25s;position:relative}.bitbar-seg:nth-child(8n):not(:last-child){margin-right:5px}.bitbar-seg.is-net{background:var(--accent)}.bitbar-seg.is-edge:before{content:"";background:var(--text);border-radius:1px;width:2px;position:absolute;top:-4px;bottom:-4px;left:-3px}.bitbar-legend{color:var(--text-muted);flex-wrap:wrap;gap:4px 18px;margin-top:6px;font-size:.82rem;display:flex}.bitbar-legend>span:not(.visually-hidden){align-items:center;gap:7px;display:inline-flex}.bitbar-key{background:var(--border-strong);border-radius:2px;width:10px;height:10px}.bitbar-key.is-net{background:var(--accent)}.result-grid.is-fixed{grid-template-columns:repeat(4,minmax(0,1fr))}.result-grid.is-fixed.is-v6{grid-template-columns:repeat(3,minmax(0,1fr))}.result-grid.is-fixed .v{word-break:normal;overflow-wrap:anywhere}.result-grid.is-fixed .v>span:first-child{min-width:0}@media (max-width:860px){.result-grid.is-fixed,.result-grid.is-fixed.is-v6{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:520px){.result-grid.is-fixed,.result-grid.is-fixed.is-v6{grid-template-columns:minmax(0,1fr)}.calc-input-row,.calc-pad{padding:14px}.calc-results{padding:14px 14px 4px}.calc-results .binary-row{margin-left:-14px;margin-right:-14px;padding-left:14px;padding-right:14px}.calc-lists{padding:2px 14px 14px}.stepper-btn{width:38px}.calc-tab{padding:8px 11px}.res-actions{margin-left:0}}.section-head a{align-items:center;min-height:24px;display:inline-flex}.calc-v6-note{color:var(--text-muted);margin:0;font-size:.88rem}.calc-lists{padding:2px 18px 18px}.calc-lists .examples .lbl{align-items:center;gap:5px;display:inline-flex}.kbd-dialog{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--panel);width:min(460px,100vw - 32px);max-height:calc(100vh - 48px);color:var(--text);padding:0;box-shadow:0 16px 48px #0d111747}.kbd-dialog::backdrop{background:#0d111780}.kbd-dialog-body{padding:20px 22px 18px}.kbd-dialog h2{margin:0 0 14px;font-size:1.1rem}.kbd-list{gap:9px;margin:0;display:grid}.kbd-list>div{grid-template-columns:minmax(0,10rem) minmax(0,1fr);align-items:baseline;gap:12px;display:grid}.kbd-list dt,.kbd-list dd{margin:0}.kbd-list dd{color:var(--text-muted);font-size:.9rem}.kbd-dialog kbd{border:1px solid var(--border-strong);background:var(--bg-subtle);min-width:1.7em;color:var(--text);text-align:center;border-bottom-width:2px;border-radius:5px;padding:1px 6px;font-size:.8rem;line-height:1.5;display:inline-block}.kbd-toggle{cursor:pointer;align-items:center;gap:10px;min-height:32px;margin-top:18px;font-size:.9rem;display:flex}.kbd-toggle input{width:20px;height:20px;accent-color:var(--accent);margin:0}.kbd-dialog .field-note{margin:4px 0 0}.kbd-dialog-actions{justify-content:flex-end;margin-top:14px;display:flex}@media (prefers-reduced-motion:reduce){.bitbar-seg,.calc-tab{transition:none}.calc-spinner{animation:none}}