:root{--bg:#120d18;--p1:#1a1322;--p2:#221a2c;--ink:#0b0810;--line:#3a2c49;--line2:#56426b;--tx:#ece4f3;--mut:#b3a5c2;--or:#d58cff;--or2:#e9c2ff;--lime:#c6f26a;--err:#ff8098;
--fd:"Chakra Petch","Segoe UI",system-ui,sans-serif;--fb:"Instrument Sans",system-ui,-apple-system,"Segoe UI",sans-serif;--fm:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;--w:680px}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:20px}
body{margin:0;background:var(--bg);color:var(--tx);font:400 17px/1.65 var(--fb);overflow-x:hidden;
background-image:radial-gradient(900px 420px at 50% -120px,rgba(213,140,255,.16),transparent 70%),radial-gradient(circle at 1px 1px,rgba(213,140,255,.07) 1px,transparent 1.5px);background-size:auto,22px 22px;background-repeat:no-repeat,repeat}
[hidden]{display:none!important}
a{color:var(--or);text-underline-offset:3px}
a:hover{color:var(--or2)}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:2px}
h1,h2,h3{font-family:var(--fd);line-height:1.12;margin:0;letter-spacing:-.005em;overflow-wrap:break-word}
p{margin:0 0 1em}
ul,ol,dl,dd{margin:0;padding:0}
.skip{position:absolute;left:-9999px;top:8px;background:var(--lime);color:#10160a;padding:10px 16px;z-index:9;font-weight:600}
.skip:focus{left:8px}

/* header: two-row instrument head */
.top,.col,.foot{width:min(var(--w),100% - 32px);margin-inline:auto}
.top{margin-top:18px;border:1px solid var(--line);background:rgba(26,19,34,.92);border-radius:3px}
.bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 10px 10px 14px}
.logo{display:inline-flex;align-items:center;gap:10px;min-height:44px;color:var(--tx);text-decoration:none;font:700 1.12rem/1 var(--fd);letter-spacing:.02em;text-transform:uppercase;min-width:0}
.logo span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.logo:hover{color:var(--or2)}
.mark{flex:none}
.nav{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));border-top:1px solid var(--line)}
.nav a{position:relative;display:flex;align-items:center;justify-content:center;min-height:44px;padding:4px 2px;color:var(--mut);text-decoration:none;font:400 .72rem/1.1 var(--fm);letter-spacing:.06em;text-transform:uppercase;text-align:center;border-left:1px solid var(--line);min-width:0}
.nav a:first-child{border-left:0}
.nav a span{overflow:hidden;text-overflow:ellipsis}
.nav a::before{content:"";position:absolute;top:7px;left:50%;width:14px;height:2px;margin-left:-7px;background:var(--line2)}
.nav a:hover{color:var(--tx);background:var(--p2)}
.nav a[aria-current]{color:var(--or2);background:var(--p2)}
.nav a[aria-current]::before{background:var(--lime);box-shadow:0 0 8px var(--lime)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:10px 22px;border:1px solid var(--or);border-radius:3px;background:var(--or);color:#170a22;font:700 .95rem/1.1 var(--fd);letter-spacing:.05em;text-transform:uppercase;text-decoration:none;cursor:pointer;text-align:center;box-shadow:inset 0 0 0 2px #170a22,0 0 0 0 rgba(213,140,255,.4);transition:box-shadow .2s,background .2s}
.btn:hover{background:var(--or2);color:#170a22;box-shadow:inset 0 0 0 2px #170a22,0 0 22px 0 rgba(213,140,255,.45)}
.btn.ghost{background:transparent;color:var(--tx);border-color:var(--line2);box-shadow:none}
.btn.ghost:hover{background:var(--p2);color:var(--or2);border-color:var(--or)}
.btn.sm{min-height:44px;padding:8px 14px;font-size:.82rem}
.btn.key{min-height:44px;padding:8px 16px;font-size:.84rem;flex:none}
.btn[disabled]{opacity:.6;cursor:wait}
.acts{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 0}

/* column + ruler */
.col{position:relative;padding:44px 0 30px;counter-reset:mod}
.col::before{content:"";position:absolute;left:-36px;top:44px;bottom:30px;width:13px;opacity:.75;
background:repeating-linear-gradient(to bottom,var(--line2) 0 1px,transparent 1px 50px),repeating-linear-gradient(to bottom,var(--line) 0 1px,transparent 1px 10px);background-size:13px 100%,7px 100%;background-repeat:no-repeat;background-position:right top}
@media(max-width:800px){.col::before{display:none}}

/* page head */
.crumbs{display:flex;gap:8px;margin:0 0 18px;font:400 .74rem/1.4 var(--fm);letter-spacing:.05em;text-transform:uppercase;color:var(--mut);min-width:0}
.crumbs a{color:var(--mut);text-decoration:none;white-space:nowrap}
.crumbs a:hover{color:var(--or2)}
.crumbs i{font-style:normal;color:var(--or)}
.crumbs span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#9a8bab;min-width:0}
h1{font-size:clamp(2rem,5.6vw,3.05rem);font-weight:600;letter-spacing:-.015em;line-height:1.06;text-wrap:balance}
.lead{font-size:1.14rem;line-height:1.6;color:var(--mut);margin:20px 0 0;max-width:62ch}
.eyebrow,.meta{display:flex;align-items:center;gap:10px;margin:0 0 18px;font:400 .76rem/1.4 var(--fm);letter-spacing:.09em;text-transform:uppercase;color:var(--lime)}
.eyebrow i,.meta i{flex:none;width:8px;height:8px;background:var(--lime);border-radius:50%;box-shadow:0 0 10px var(--lime);animation:blink 2.4s steps(1) infinite}
.meta{margin:22px 0 0;color:var(--mut)}
.meta time{color:var(--tx)}
@keyframes blink{0%,70%{opacity:1}71%,100%{opacity:.35}}

/* hero panel: dial + readouts */
.panel{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,1fr);margin-top:38px;border:1px solid var(--line);background:linear-gradient(180deg,var(--p1),#150f1c);border-radius:3px;position:relative}
.panel::before,.panel::after,.auth>.form::before,.auth>.form::after,.sup::before,.sup::after{content:"";position:absolute;width:16px;height:16px;border:2px solid var(--or);pointer-events:none}
.panel::before,.auth>.form::before,.sup::before{left:-5px;top:-5px;border-right:0;border-bottom:0}
.panel::after,.auth>.form::after,.sup::after{right:-5px;bottom:-5px;border-left:0;border-top:0}
.dial{padding:22px 20px 18px;text-align:center;border-right:1px solid var(--line);min-width:0}
.dial-svg{display:block;width:100%;max-width:290px;height:auto;margin:0 auto}
.dial-svg path{fill:none}
.d-min{stroke:var(--line2);stroke-width:8}
.d-maj{stroke:var(--mut);stroke-width:15}
.d-bg{stroke:#2b2037;stroke-width:5}
.d-val{stroke:var(--or);stroke-width:5}
.d-red{stroke:var(--lime);stroke-width:5}
.needle{transform-origin:160px 164px;animation:wob 3.6s ease-in-out infinite}
.dial-svg .needle path{fill:var(--tx)}
.d-hub{fill:var(--p2);stroke:var(--or);stroke-width:2}
.d-dot{fill:var(--lime)}
@keyframes wob{0%,100%{transform:rotate(0)}22%{transform:rotate(2.2deg)}48%{transform:rotate(-1.4deg)}74%{transform:rotate(1deg)}}
.dial-read{margin:10px 0 0;display:flex;flex-direction:column;gap:5px}
.dial-read b{font:700 2.5rem/1 var(--fd);font-variant-numeric:tabular-nums;color:var(--tx);letter-spacing:.01em}
.dial-read span,.readouts dt,.rack dt{font:400 .7rem/1.35 var(--fm);letter-spacing:.07em;text-transform:uppercase;color:var(--mut)}
.readouts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
.readouts div{display:flex;flex-direction:column;justify-content:center;gap:7px;padding:16px 16px;border-bottom:1px solid var(--line);border-left:1px solid var(--line);min-width:0}
.panel .readouts div:nth-child(odd){border-left:0}
.panel .readouts div:nth-last-child(-n+2){border-bottom:0}
.readouts dd{order:-1;font:600 1.6rem/1 var(--fd);font-variant-numeric:tabular-nums;color:var(--or2);overflow-wrap:anywhere}
.readouts.five,.readouts.conn{margin-top:30px;border:1px solid var(--line);background:var(--p1);border-radius:3px}
.readouts.five{grid-template-columns:repeat(5,minmax(0,1fr))}
.readouts.five div{border-bottom:0;padding:14px 12px}
.readouts.five div:first-child,.readouts.conn div:first-child{border-left:0}
.readouts.five dd{font-size:1.28rem}
.readouts.conn{grid-template-columns:minmax(0,2.2fr) minmax(0,1fr)}
.readouts.conn div{border-bottom:0;padding:13px 16px}
.readouts.conn dd{font:600 .92rem/1.3 var(--fm);color:var(--lime)}
.readouts.conn dt{text-transform:none}
.bullets{list-style:none;margin-top:26px;display:grid;gap:10px}
.bullets li{position:relative;padding-left:28px;color:var(--tx)}
.bullets li::before{content:"";position:absolute;left:2px;top:.52em;width:12px;height:7px;border-left:2px solid var(--lime);border-bottom:2px solid var(--lime);transform:rotate(-45deg)}

/* modules */
.mod,.prose,.closing,.doc{margin-top:64px}
.mod{counter-increment:mod}
.mh{display:flex;align-items:center;gap:14px;margin-bottom:24px}
.mn{flex:none;font:600 .76rem/1 var(--fm);color:#170a22;background:var(--or);padding:6px 7px;border-radius:2px;letter-spacing:.04em}
.mn::before{content:counter(mod,decimal-leading-zero)}
.mh h2{font-size:clamp(1.45rem,3.6vw,1.85rem);font-weight:600;min-width:0}
.ml{flex:1;min-width:16px;height:7px;border-top:1px solid var(--line2);background:repeating-linear-gradient(90deg,var(--line2) 0 1px,transparent 1px 8px)}

/* feature cells */
.feat,.use,.steps,.ex{list-style:none}
.feat{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border:1px solid var(--line);background:var(--p1);border-radius:3px;counter-reset:f}
.feat li{counter-increment:f;padding:22px 20px 20px;border-top:1px solid var(--line);border-left:1px solid var(--line);min-width:0}
.feat li:nth-child(odd){border-left:0}
.feat li:nth-child(-n+2){border-top:0}
.feat li::before{content:counter(f,decimal-leading-zero);display:block;font:600 .72rem/1 var(--fm);color:var(--lime);margin-bottom:12px;letter-spacing:.08em}
.feat h3,.use h3,.ex h3{font-size:1.1rem;font-weight:600;margin-bottom:8px}
.feat p,.use p,.steps p,.ex p{margin:0;color:var(--mut);font-size:.96rem;line-height:1.58}
/* steps: procedure with a vertical bus */
.steps{counter-reset:s;position:relative;display:grid;gap:14px}
.steps::before{content:"";position:absolute;left:23px;top:24px;bottom:24px;width:1px;background:linear-gradient(var(--or),var(--line))}
.steps li{counter-increment:s;position:relative;padding:14px 18px 16px 70px;min-height:60px;min-width:0}
.steps li::before{content:counter(s);position:absolute;left:0;top:8px;width:47px;height:47px;display:grid;place-items:center;font:700 1.25rem/1 var(--fd);color:var(--or2);background:var(--bg);border:1px solid var(--or);border-radius:50%;box-shadow:0 0 0 5px var(--bg),inset 0 0 12px rgba(213,140,255,.25)}
.steps h3{font-size:1.14rem;font-weight:600;margin-bottom:6px}
/* use cases: channel rows */
.use{counter-reset:u;display:grid;gap:12px}
.use li{counter-increment:u;position:relative;padding:18px 20px 18px 66px;border:1px solid var(--line);border-left:3px solid var(--or);background:var(--p1);border-radius:2px;min-width:0}
.use li::before{content:counter(u,upper-alpha);position:absolute;left:20px;top:17px;font:700 1.5rem/1 var(--fd);color:var(--or)}
.ex{counter-reset:x;display:grid;gap:0;border:1px solid var(--line);background:var(--p1);border-radius:3px}
.ex li{counter-increment:x;padding:20px 20px 20px 62px;position:relative;border-top:1px dashed var(--line2);min-width:0}
.ex li:first-child{border-top:0}
.ex li::before{content:counter(x,decimal-leading-zero);position:absolute;left:20px;top:22px;font:600 .8rem/1 var(--fm);color:var(--lime)}

/* code */
.codebox{border:1px solid var(--line);border-radius:3px;background:var(--ink);overflow:hidden}
.codetabs{display:flex;overflow-x:auto;border-bottom:1px solid var(--line);background:var(--p1)}
.codetabs button{flex:none;min-height:44px;padding:8px 18px;border:0;border-right:1px solid var(--line);background:none;color:var(--mut);font:400 .78rem/1 var(--fm);letter-spacing:.06em;text-transform:uppercase;cursor:pointer}
.codetabs button:hover{color:var(--tx)}
.codetabs button[aria-selected=true]{color:var(--lime);background:var(--ink);box-shadow:inset 0 2px 0 var(--lime)}
pre.code{display:grid;grid-template-columns:minmax(0,1fr);margin:1.4em 0;border:1px solid var(--line);border-radius:3px;background:var(--ink);font:400 .84rem/1.65 var(--fm);color:#e4daee;max-width:100%}
.codebox pre.code{margin:0;border:0;border-radius:0}
pre.code code{display:block;overflow-x:auto;padding:4px 18px 18px;font:inherit;white-space:pre;background:none;border:0;color:inherit;tab-size:2}
pre.code .copy{justify-self:end;min-height:36px;min-width:64px;margin:6px 6px 0 0;padding:6px 12px;border:1px solid var(--line2);border-radius:2px;background:var(--p1);color:var(--mut);font:400 .7rem/1 var(--fm);letter-spacing:.07em;text-transform:uppercase;cursor:pointer;position:relative}
pre.code .copy::after{content:"";position:absolute;inset:-5px}
pre.code .copy:hover{color:var(--lime);border-color:var(--lime)}
.code .k{color:var(--or)}.code .s{color:var(--lime)}.code .c{color:#9585a6;font-style:italic}

/* prose */
.prose{min-width:0}
.prose>:first-child{margin-top:0}
.prose h2{font-size:clamp(1.4rem,3.4vw,1.75rem);font-weight:600;margin:2.2em 0 .7em;padding-top:18px;border-top:1px solid var(--line);position:relative;scroll-margin-top:20px}
.prose h2::before{content:"";position:absolute;left:0;top:-2px;width:44px;height:3px;background:var(--or)}
.prose h3{font-size:1.16rem;font-weight:600;margin:1.8em 0 .5em;color:var(--or2)}
.prose p,.prose li{color:#d9cfe3}
.prose ul,.prose ol{margin:0 0 1.1em;padding-left:1.3em}
.prose li{margin:.35em 0;padding-left:.2em}
.prose ul li::marker{color:var(--or);content:"▪  "}
.prose ol li::marker{color:var(--or);font:600 .88em var(--fm)}
.prose strong{color:var(--tx);font-weight:600}
.prose :not(pre)>code,.keyout code{font:400 .86em var(--fm);background:var(--p2);border:1px solid var(--line);border-radius:2px;padding:.1em .38em;color:var(--or2);overflow-wrap:anywhere}
.prose table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:1.4em 0;font-size:.92rem;border:1px solid var(--line);border-radius:3px;background:var(--p1)}
.prose th,.prose td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line);border-right:1px solid var(--line);vertical-align:top;font-variant-numeric:tabular-nums}
.prose th{font:600 .7rem/1.3 var(--fm);letter-spacing:.07em;text-transform:uppercase;color:var(--lime);background:var(--p2);white-space:nowrap}
.prose tr:last-child td{border-bottom:0}
.prose blockquote{margin:1.4em 0;padding:4px 0 4px 18px;border-left:3px solid var(--or);color:var(--mut)}

/* faq */
.faq{border:1px solid var(--line);border-radius:3px;background:var(--p1)}
.faq details{border-top:1px solid var(--line)}
.faq details:first-child{border-top:0}
.faq summary{display:flex;align-items:center;gap:14px;min-height:56px;padding:14px 18px;cursor:pointer;list-style:none;font:600 1.04rem/1.35 var(--fd)}
.faq summary::-webkit-details-marker{display:none}
.faq summary span{flex:1;min-width:0}
.faq summary::after{content:"+";flex:none;width:26px;height:26px;display:grid;place-items:center;border:1px solid var(--line2);border-radius:2px;font:400 1rem/1 var(--fm);color:var(--or)}
.faq details[open] summary{color:var(--or2)}
.faq details[open] summary::after{content:"\2212";background:var(--or);color:#170a22;border-color:var(--or)}
.faq summary:hover{background:var(--p2)}
.ans{padding:0 18px 18px}
.ans p{margin:0;color:#d9cfe3;font-size:.98rem}

/* closing */
.closing{position:relative;padding:34px 28px 36px;border:1px solid var(--or);border-radius:3px;text-align:center;background:radial-gradient(420px 200px at 50% 0,rgba(213,140,255,.2),transparent 70%),var(--p1)}
.closing h2{font-size:clamp(1.5rem,4vw,2rem);font-weight:600;text-wrap:balance}
.closing p{color:var(--mut);margin:14px auto 0;max-width:48ch}
.closing .acts{justify-content:center}

/* signup */
.auth{margin-top:30px}
.form,.sup{position:relative;border:1px solid var(--line2);border-radius:3px;background:linear-gradient(180deg,var(--p2),var(--p1));padding:26px 26px 24px;box-shadow:0 30px 60px -30px rgba(213,140,255,.35)}
.tabs2{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line2);border-radius:3px;background:var(--ink);padding:3px;gap:3px;margin-bottom:20px}
.tabs2 button{min-height:44px;border:0;border-radius:2px;background:none;color:var(--mut);font:600 .86rem/1 var(--fd);letter-spacing:.06em;text-transform:uppercase;cursor:pointer}
.tabs2 button[aria-selected=true]{background:var(--p2);color:var(--lime);box-shadow:inset 0 -2px 0 var(--lime)}
.msg{margin:0 0 16px;padding:11px 14px;border:1px solid var(--line2);border-left:3px solid var(--lime);background:var(--ink);font-size:.93rem;border-radius:2px}
.msg:empty{display:none}
.msg.err{border-color:var(--err);color:#ffc2cd}
.row{margin-bottom:16px;min-width:0}
.row label,.calc label{display:block;margin-bottom:7px;font:400 .72rem/1.3 var(--fm);letter-spacing:.08em;text-transform:uppercase;color:var(--mut)}
input,select,textarea{width:100%;min-height:48px;padding:11px 14px;border:1px solid var(--line2);border-radius:3px;background:var(--ink);color:var(--tx);font:400 1rem/1.4 var(--fb);appearance:none;-webkit-appearance:none}
select{background-image:linear-gradient(45deg,transparent 50%,var(--or) 50%),linear-gradient(135deg,var(--or) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px;background-repeat:no-repeat;padding:11px 40px 11px 14px!important}
select option{background:var(--p1);color:var(--tx)}
textarea{resize:vertical;min-height:150px;padding:12px 14px!important}
input:focus,select:focus,textarea:focus{outline:2px solid var(--or);outline-offset:1px;border-color:var(--or)}
.note{font-size:.85rem;line-height:1.5;color:var(--mut);margin:8px 0 0}
.form form>.btn,.sup form>.btn{width:100%;margin-top:6px;min-height:50px}
.form form>.note{text-align:center;margin-top:14px}
.sup form{margin-top:0!important}
.sup form>p{margin:14px 0 0;color:var(--lime);font-size:.95rem}
.sup form>p:empty{display:none}
.keyout{display:none}
.keyout.on{display:block}
.keyout h3{font-size:1.3rem;margin-bottom:14px;color:var(--lime)}
.keybox{display:flex;align-items:center;gap:10px;padding:8px 8px 8px 14px;border:1px solid var(--lime);border-radius:3px;background:var(--ink)}
.keybox span{flex:1;min-width:0;font:600 .9rem/1.4 var(--fm);color:var(--lime);overflow-wrap:anywhere}
.keyout p{margin:14px 0 0;font-size:.95rem;line-height:1.9}
.keyout p.note{line-height:1.5;margin-top:8px}
.keyout .acts{margin-top:18px;gap:8px}
.mut{color:var(--mut)}

/* pricing rack */
.rack{margin-top:32px;border:1px solid var(--line);border-radius:3px;background:var(--p1)}
.rack div{display:flex;align-items:baseline;gap:12px;padding:15px 20px;border-top:1px solid var(--line);min-width:0}
.rack div:first-child{border-top:0;padding-block:22px;background:linear-gradient(90deg,rgba(213,140,255,.14),transparent)}
.rack dt{flex:1;min-width:0;display:flex;align-items:baseline;gap:12px}
.rack dt::after{content:"";flex:1;min-width:14px;border-bottom:1px dotted var(--line2);transform:translateY(-3px)}
.rack dd{font:600 1.5rem/1 var(--fd);font-variant-numeric:tabular-nums;color:var(--or2);white-space:nowrap}
.rack div:first-child dd{font-size:2.5rem;font-weight:700;color:var(--tx)}
.calc{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;align-items:end;padding:22px;border:1px solid var(--line2);border-radius:3px;background:linear-gradient(180deg,var(--p2),var(--p1))}
.calc>div{min-width:0}
.calc input{font:600 1.02rem/1.3 var(--fm);font-variant-numeric:tabular-nums}
.calc output{display:flex;align-items:center;min-height:48px;padding:6px 14px;border:1px solid var(--lime);border-radius:3px;background:var(--ink);font:700 1.5rem/1 var(--fd);font-variant-numeric:tabular-nums;color:var(--lime);overflow-wrap:anywhere}

/* takeaways + toc */
.take{list-style:none;border:1px solid var(--line);border-left:3px solid var(--lime);background:var(--p1);border-radius:2px;padding:8px 22px}
.take li{position:relative;padding:13px 0 13px 28px;border-top:1px dashed var(--line2);color:var(--tx)}
.take li:first-child{border-top:0}
.take li::before{content:"";position:absolute;left:2px;top:1.35em;width:9px;height:9px;background:var(--lime);box-shadow:0 0 8px rgba(198,242,106,.7)}
.doc{position:relative}
.doc .prose{margin-top:0}
.toc{margin-bottom:44px}
.toc-in{border:1px solid var(--line);border-radius:3px;background:var(--p1);padding:18px 20px 14px}
.toc-h{margin:0 0 8px;font:600 .72rem/1.3 var(--fm);letter-spacing:.1em;text-transform:uppercase;color:var(--lime)}
.toc ol{list-style:none;counter-reset:t;columns:2;column-gap:28px}
.toc li{counter-increment:t;break-inside:avoid}
.toc a{display:flex;gap:10px;align-items:baseline;min-height:44px;padding:9px 0;color:var(--tx);text-decoration:none;font-size:.93rem;line-height:1.35;border-top:1px solid var(--line)}
.toc a::before{content:counter(t,decimal-leading-zero);font:400 .72rem var(--fm);color:var(--or);flex:none}
.toc a:hover{color:var(--or2)}
@media(min-width:1280px){
.toc{position:absolute;right:calc(100% + 60px);top:0;bottom:0;width:232px;margin:0}
.toc-in{position:sticky;top:24px;max-height:calc(100vh - 48px);overflow-y:auto;background:none;border:0;border-right:1px solid var(--line);border-radius:0;padding:0 18px 0 0}
.toc ol{columns:1}
.toc a{min-height:0;padding:8px 0;font-size:.86rem;color:var(--mut)}
}

/* 404 */
.nf{text-align:center;padding:30px 0 60px}
.nf .dial{border:0;padding:0 0 26px}
.nf .lead{margin-inline:auto}
.nf .acts{justify-content:center}
.zero .needle{animation:none}
.zero svg>g{transform:rotate(7deg);transform-origin:160px 164px}
.zero .d-val{stroke-dasharray:4 100}

/* footer */
.foot{margin-top:50px;margin-bottom:34px;border-top:1px solid var(--line2);padding-top:30px;position:relative}
.foot::before{content:"";position:absolute;left:0;top:-1px;width:80px;height:3px;background:var(--or)}
.fgrid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);gap:28px}
.fb p{color:var(--mut);font-size:.93rem;margin:6px 0 16px}
.fl{columns:2;column-gap:24px}
.fl a{break-inside:avoid;display:flex;align-items:center;min-height:44px;color:var(--mut);text-decoration:none;font:400 .76rem/1.3 var(--fm);letter-spacing:.06em;text-transform:uppercase}
.fl a:hover{color:var(--or2)}
.legal{margin:26px 0 0;padding-top:18px;border-top:1px dashed var(--line);font-size:.8rem;line-height:1.55;color:var(--mut)}

@media(max-width:640px){
body{font-size:16px}
.top{margin-top:12px}
.col{padding-top:32px}
.logo{font-size:1rem;gap:8px}
.btn.key{padding:8px 12px;font-size:.78rem}
.nav a{font-size:.66rem;letter-spacing:.02em}
.panel{grid-template-columns:minmax(0,1fr)}
.dial{border-right:0;border-bottom:1px solid var(--line)}
.readouts.five{grid-template-columns:repeat(6,minmax(0,1fr))}
.readouts.five div{grid-column:span 2;border-top:1px solid var(--line)}
.readouts.five div:nth-child(-n+3){border-top:0}
.readouts.five div:nth-child(n+4){grid-column:span 3}
.readouts.five div:nth-child(4){border-left:0}
.readouts.conn{grid-template-columns:minmax(0,1fr)}
.readouts.conn div{border-left:0;border-top:1px solid var(--line)}
.readouts.conn div:first-child{border-top:0}
.feat{grid-template-columns:minmax(0,1fr)}
.feat li{border-left:0}
.feat li:nth-child(2){border-top:1px solid var(--line)}
.mod,.prose,.closing,.doc{margin-top:52px}
.form,.sup{padding:20px 16px}
.acts .btn{flex:1 1 100%}
.keyout .acts .btn{flex:1 1 auto}
.calc{grid-template-columns:minmax(0,1fr);padding:18px 16px}
.rack div{padding-inline:16px}
.rack div:first-child dd{font-size:2rem}
.toc ol{columns:1}
.fgrid{grid-template-columns:minmax(0,1fr)}
.closing{padding:28px 18px 30px}
.steps li{padding-left:64px}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}