:root{--bg:#eceef1;--pan:#fff;--ink:#16181c;--mut:#515763;--line:#d9dde3;--red:#cf2a1e;--redd:#9c1d13;--redi:#b02216;--dev:#1a1c20;--dev2:#111316;--pad:#2c3038;--lcd:#ff8a7c;--sb:248px;
--sans:"Albert Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--mono:"Chivo Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.6 var(--sans);-webkit-font-smoothing:antialiased;overflow-wrap:break-word}
[hidden]{display:none!important}
h1,h2,h3,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--redi)}
img,svg{max-width:100%}
:focus-visible{outline:3px solid var(--ink);outline-offset:2px;box-shadow:0 0 0 5px #fff}
.skip{position:absolute;left:12px;top:-80px;z-index:99;background:var(--ink);color:#fff;padding:12px 16px;border-radius:10px;font-weight:700}
.skip:focus{top:12px}

/* buttons = rubber pads */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 20px;border:0;border-radius:12px;background:var(--red);color:#fff;font:700 16px/1.2 var(--sans);text-decoration:none;text-align:center;cursor:pointer;box-shadow:0 4px 0 var(--redd);transition:transform .08s,box-shadow .08s}
.btn:hover{background:#bd2418}
.btn:active{transform:translateY(3px);box-shadow:0 1px 0 var(--redd)}
.btn.big{min-height:56px;padding:0 26px;font-size:17px;border-radius:14px}
.btn.ghost{background:#fff;color:var(--ink);box-shadow:0 4px 0 #c5cad2,inset 0 0 0 1.5px #c5cad2}
.btn.ghost:hover{background:#f6f7f9}
.btn.ghost:active{box-shadow:0 1px 0 #c5cad2,inset 0 0 0 1.5px #c5cad2}
.btn.sm{min-height:44px;padding:0 14px;font-size:14.5px;border-radius:10px}
.btn.inv{background:#fff;color:var(--ink);box-shadow:0 4px 0 #7d150d;min-height:56px;padding:0 28px;font-size:17px}
.btn.inv:hover{background:#f3f4f6}
.btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

/* sidebar = channel strip */
.side{position:fixed;inset:0 auto 0 0;width:var(--sb);z-index:30;display:flex;flex-direction:column;background:var(--pan);border-right:1px solid var(--line);padding:22px 16px 20px;overflow-y:auto}
.logo{display:inline-flex;align-items:center;gap:11px;color:var(--ink);text-decoration:none;min-height:44px}
.mark{display:grid;grid-template-columns:1fr 1fr;gap:3px;width:34px;height:34px;padding:5px;background:var(--dev);border-radius:9px;flex:none}
.mark i{border-radius:3px;background:#3d424b}
.mark i:nth-child(1),.mark i:nth-child(4){background:var(--red)}
.lt{font-weight:900;font-size:20px;letter-spacing:-.03em}
.nav{display:grid;gap:4px;margin-top:30px}
.nav a{display:grid;grid-template-columns:36px minmax(0,1fr) auto;align-items:center;gap:12px;min-height:50px;padding:0 10px 0 7px;border-radius:13px;color:var(--ink);text-decoration:none;font-weight:500;font-size:16px}
.nav a:hover{background:#f3f4f6}
.nav .ic{box-sizing:content-box;width:20px;height:20px;padding:8px;border-radius:10px;background:var(--bg);box-shadow:0 2px 0 #cdd1d8}
.nav a[aria-current]{background:#f3f4f6;font-weight:900}
.nav a[aria-current] .ic{background:var(--red);color:#fff;box-shadow:0 2px 0 var(--redd)}
.nl{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.seq{display:inline-grid;grid-auto-flow:column;grid-auto-columns:10px;gap:3px;flex:none}
.seq i{height:10px;border-radius:3px;background:#cfd3da}
.seq i.on{background:var(--red)}
.nav .seq{grid-auto-columns:5px;gap:2px}
.nav .seq i{height:5px;border-radius:2px;background:#dfe2e7}
.nav .seq i.on{background:#aab0ba}
.nav a[aria-current] .seq i.on{background:var(--red)}
.sidecta{margin-top:auto;padding-top:24px}
.sidecta .btn{width:100%;min-height:54px}
.sidecta p{margin-top:16px;font-size:13.5px;line-height:1.45;color:var(--mut)}
.shell{margin-left:var(--sb);min-width:0;display:flex;flex-direction:column;min-height:100vh}
main{display:block;min-width:0;flex:1 0 auto}

/* lanes */
.lane{padding:64px max(40px,calc((100% - 1080px)/2));min-width:0}
.lane.tint,.lane.read,.lane.hero,.lane.top,.lane.keytop,.lane.doc,.lane.nf{background:var(--pan)}
.lane+.lane{border-top:1px solid var(--line)}
.lh{display:flex;align-items:center;gap:14px;margin-bottom:30px}
.lh h2{font-size:clamp(25px,2.4vw,32px);font-weight:900;letter-spacing:-.025em;line-height:1.15;min-width:0}
.ln{flex:none;display:grid;place-items:center;width:40px;height:40px;border-radius:11px;background:var(--dev);color:#fff;font:500 14px var(--mono);box-shadow:0 3px 0 #000}
.lh .seq{margin-left:auto}
h1{font-size:clamp(33px,3.5vw,52px);font-weight:900;letter-spacing:-.035em;line-height:1.06}
.lead{margin-top:20px;font-size:clamp(17.5px,1.35vw,20px);line-height:1.55;color:var(--mut);max-width:62ch}
.rec{display:inline-block;width:10px;height:10px;border-radius:50%;background:var(--red);box-shadow:0 0 0 4px rgba(207,42,30,.18);margin-right:12px;vertical-align:1px}
.eyebrow,.meta{font:500 13px/1.4 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--redi)}
.eyebrow{margin-bottom:20px}
.meta{margin-top:22px;color:var(--mut)}

/* hero */
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.02fr);gap:52px;align-items:center;padding-top:56px;padding-bottom:60px}
.ticks{margin-top:24px;display:grid;gap:10px}
.ticks li{position:relative;padding-left:26px;font-weight:500}
.ticks li::before{content:"";position:absolute;left:0;top:.45em;width:12px;height:12px;border-radius:4px;background:var(--red);box-shadow:0 2px 0 var(--redd)}
.device,.keyform{background:var(--dev);border-radius:22px;padding:14px;box-shadow:0 6px 0 #000,0 30px 50px -22px rgba(22,24,28,.55);min-width:0}
.devtop{display:flex;align-items:center;gap:10px;padding:2px 6px 12px}
.knob{width:22px;height:22px;border-radius:50%;background:#3a3e46;box-shadow:inset 0 -2px 0 #25282e;position:relative;flex:none}
.knob::after{content:"";position:absolute;left:10px;top:3px;width:2px;height:7px;border-radius:1px;background:#fff;transform-origin:1px 8px;transform:rotate(-40deg)}
.knob.k2::after{transform:rotate(55deg)}
.devname{margin-left:6px;font:500 12px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:#aab0bb;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.devled{margin-left:auto;width:9px;height:9px;border-radius:50%;background:var(--red);box-shadow:0 0 10px 2px rgba(255,90,70,.7);flex:none}
.devtop .seq{margin-left:6px}
.devtop .seq i{background:var(--pad)}
.devtop .seq i.on{background:var(--red)}
.pads{position:relative;display:grid;grid-template-columns:repeat(16,minmax(0,1fr));gap:5px;margin-bottom:14px;overflow:hidden;border-radius:6px}
.pads i{aspect-ratio:1;border-radius:5px;background:var(--pad);box-shadow:inset 0 -2px 0 rgba(0,0,0,.35)}
.pads i.on{background:var(--red);box-shadow:inset 0 -2px 0 var(--redd),0 0 12px rgba(255,80,60,.45)}
.playhead{position:absolute;top:0;bottom:0;left:0;width:calc((100% + 5px)/16 - 5px);border-radius:5px;background:rgba(255,255,255,.22);animation:ph 4s steps(16) infinite}
@keyframes ph{to{transform:translateX(calc(1600% + 80px))}}

/* code */
.codebox{background:var(--dev2);border-radius:13px;overflow:hidden;min-width:0}
.codetabs{display:flex;gap:4px;padding:6px 6px 0;border-bottom:1px solid #2a2d34}
.codetabs button{min-height:44px;padding:0 16px;border:0;border-radius:9px 9px 0 0;background:none;color:#aab0bb;font:500 13.5px var(--mono);cursor:pointer}
.codetabs button[aria-selected=true]{background:var(--dev);color:#fff;box-shadow:inset 0 3px 0 var(--red)}
pre.code{position:relative;margin:22px 0;padding:46px 20px 20px;background:var(--dev);color:#e9ebef;border-radius:14px;overflow-x:auto;font:400 13.5px/1.65 var(--mono);max-width:100%;tab-size:2}
.codebox pre.code{margin:0;border-radius:0;background:none}
pre.code code{font:inherit;background:none;padding:0;color:inherit;white-space:pre}
pre.code .k{color:#ff8a7c}pre.code .s{color:#f0cfa0}pre.code .c{color:#969dab}
.copy{position:absolute;top:0;right:0;min-height:44px;min-width:64px;padding:0 14px;border:0;border-radius:0 14px 0 12px;background:#2c3038;color:#e9ebef;font:500 12px var(--mono);letter-spacing:.06em;text-transform:uppercase;cursor:pointer}
.copy:hover{background:var(--red);color:#fff}

/* LCD transport bar */
.lane.transport{background:var(--dev);padding-top:0;padding-bottom:0;border-top:0}
.lcd{display:grid;grid-template-columns:repeat(5,minmax(0,1fr))}
.lcd>div{padding:22px 18px 22px 0;display:flex;flex-direction:column-reverse;justify-content:flex-end;gap:4px;min-width:0}
.lcd>div+div{padding-left:18px;border-left:1px solid #30343c}
.lcd dt{font:500 11.5px/1.35 var(--mono);letter-spacing:.07em;text-transform:uppercase;color:#aab0bb}
.lcd dd{font:500 clamp(17px,1.6vw,23px)/1.2 var(--mono);color:var(--lcd);text-shadow:0 0 14px rgba(255,110,90,.35)}
.lcd.bigl dd{font-size:clamp(19px,2vw,28px)}
.lcd.bigl>div{padding-top:30px;padding-bottom:30px}

/* cards, steps */
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.cards.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{background:var(--pan);border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 4px 0 #d3d7de;min-width:0}
.led{display:block;width:12px;height:12px;border-radius:4px;background:var(--red);box-shadow:0 2px 0 var(--redd);margin-bottom:16px;flex:none}
.card h3,.steps h3,.benefits h3,.examples h3{font-size:19px;font-weight:700;letter-spacing:-.015em;line-height:1.25}
.card p,.steps p,.benefits p,.examples p{margin-top:8px;color:var(--mut);font-size:16px;line-height:1.55}
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;position:relative}
.steps li{min-width:0;position:relative}
.steps li+li::before{content:"";position:absolute;left:-28px;top:27px;width:28px;height:0;border-top:3px dotted #c2c7cf;transform:translateX(-0px)}
.pad{display:grid;place-items:center;width:58px;height:58px;border-radius:15px;background:var(--red);color:#fff;font:500 22px var(--mono);box-shadow:0 5px 0 var(--redd);margin-bottom:22px;flex:none}

/* prose */
.prose{max-width:760px;min-width:0;font-size:17.5px;line-height:1.72}
.read .prose{margin-inline:auto}
.prose>*:first-child{margin-top:0}
.prose h2{margin:52px 0 16px;font-size:clamp(24px,2.1vw,30px);font-weight:900;letter-spacing:-.025em;line-height:1.18;padding-left:24px;position:relative}
.prose h2::before{content:"";position:absolute;left:0;top:.36em;width:13px;height:13px;border-radius:4px;background:var(--red);box-shadow:0 2px 0 var(--redd)}
.prose h3{margin:34px 0 10px;font-size:20.5px;font-weight:700;letter-spacing:-.015em;line-height:1.3}
.prose p{margin:0 0 18px}
.prose ul,.prose ol{margin:0 0 20px;padding-left:4px;display:grid;gap:9px}
.prose ul li{position:relative;padding-left:24px}
.prose ul li::before{content:"";position:absolute;left:2px;top:.62em;width:9px;height:9px;border-radius:3px;background:#aab0ba}
.prose ol{counter-reset:o}
.prose ol li{counter-increment:o;position:relative;padding-left:40px}
.prose ol li::before{content:counter(o);position:absolute;left:0;top:.12em;width:27px;height:27px;border-radius:8px;background:var(--dev);color:#fff;font:500 13px/27px var(--mono);text-align:center}
.prose a{color:var(--redi);text-decoration-thickness:1.5px;text-underline-offset:3px;font-weight:500}
.prose strong{font-weight:700}
.prose :not(pre)>code,.keyout code{font:500 .86em var(--mono);background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:2px 6px;word-break:break-word}
.prose table{display:block;width:100%;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:24px 0;font-size:15.5px;line-height:1.45;border:1px solid var(--line);border-radius:14px}
.prose th{background:var(--dev);color:#fff;font:500 12.5px var(--mono);letter-spacing:.05em;text-transform:uppercase;text-align:left;padding:13px 16px;white-space:nowrap}
.prose td{padding:13px 16px;border-top:1px solid var(--line);vertical-align:top;min-width:130px}
.prose tr:nth-child(even) td{background:#f6f7f9}
.prose blockquote{margin:24px 0;padding:16px 20px;border-left:5px solid var(--red);background:var(--bg);border-radius:0 12px 12px 0}

/* docs / article */
.doc{display:grid;grid-template-columns:minmax(0,760px) minmax(0,264px);gap:56px;justify-content:space-between;align-items:start}
.toc{position:sticky;top:24px;background:var(--bg);border:1px solid var(--line);border-radius:18px;padding:18px 14px 12px;min-width:0;max-height:calc(100vh - 48px);overflow-y:auto}
.toch{font:500 12px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--mut);padding:0 8px 10px}
.toc ol{counter-reset:t}
.toc li{counter-increment:t}
.toc a{display:grid;grid-template-columns:26px minmax(0,1fr);gap:10px;align-items:start;padding:10px 8px;min-height:44px;border-radius:10px;color:var(--ink);text-decoration:none;font-size:15px;font-weight:500;line-height:1.35}
.toc a::before{content:counter(t,decimal-leading-zero);font:500 11px/20px var(--mono);height:20px;text-align:center;border-radius:6px;background:#fff;color:var(--mut);box-shadow:0 2px 0 #cdd1d8}
.toc a:hover{background:#fff}
.toc a:hover::before{background:var(--red);color:#fff;box-shadow:0 2px 0 var(--redd)}
.takeaways{background:var(--dev);color:#f1f2f4;border-radius:20px;padding:26px 28px 28px;margin-bottom:40px;box-shadow:0 6px 0 #000}
.prose .takeaways h2{margin:0 0 16px;padding:0;font:500 13px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--lcd)}
.prose .takeaways h2::before{display:none}
.prose .takeaways ul{margin:0;gap:12px}
.prose .takeaways li{padding-left:28px;font-size:16.5px;line-height:1.55}
.prose .takeaways li::before{background:var(--red);width:12px;height:12px;border-radius:4px;top:.4em;left:0;box-shadow:0 2px 0 var(--redd)}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:0 10px;margin-bottom:14px;font:500 13px var(--mono);color:var(--mut)}
.crumbs a{color:var(--mut);display:inline-flex;align-items:center;min-height:44px}
.crumbs span{color:var(--ink)}
.crumbs i{width:7px;height:7px;border-radius:2px;background:var(--red)}
.lane.top{padding-top:36px;padding-bottom:48px}

/* faq */
.qa{display:grid;gap:10px;max-width:860px}
.qa details{background:var(--pan);border:1px solid var(--line);border-radius:16px;box-shadow:0 3px 0 #d3d7de}
.qa summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px;padding:12px 14px 12px 22px;font-weight:700;font-size:17.5px;line-height:1.35;cursor:pointer;list-style:none;border-radius:16px}
.qa summary::-webkit-details-marker{display:none}
.qa summary b{flex:none;width:34px;height:34px;border-radius:10px;background:var(--bg) linear-gradient(var(--ink),var(--ink)) center/14px 2.5px no-repeat;position:relative;box-shadow:0 2px 0 #cdd1d8}
.qa summary b::after{content:"";position:absolute;left:50%;top:50%;width:2.5px;height:14px;margin:-7px 0 0 -1.25px;background:var(--ink)}
.qa details[open] summary b{background-color:var(--red);background-image:linear-gradient(#fff,#fff);box-shadow:0 2px 0 var(--redd)}
.qa details[open] summary b::after{display:none}
.qa details p{padding:0 22px 22px;color:var(--mut);max-width:72ch}

/* closing band */
.lane.out{background:var(--red);color:#fff;border-top:0;padding-top:56px;padding-bottom:40px}
.outin{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.outin>div:first-child{min-width:0;flex:1 1 420px}
.out h2{font-size:clamp(27px,2.8vw,40px);font-weight:900;letter-spacing:-.03em;line-height:1.1}
.out p{margin-top:12px;font-size:18px;max-width:56ch}
.out .seq{display:grid;grid-auto-flow:row;grid-template-columns:repeat(32,minmax(0,1fr));gap:5px;margin-top:40px}
.out .seq i{height:auto;aspect-ratio:1;border-radius:5px;background:rgba(0,0,0,.2)}
.out .seq i.on{background:#fff}

/* key page */
.keytop{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,470px);grid-template-areas:"t f" "b f";gap:8px 60px;align-items:start;padding-top:36px}
.keytxt{grid-area:t}.keyform{grid-area:f}.benefits{grid-area:b}
.keytop h1{font-size:clamp(33px,3.3vw,48px)}
.benefits{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 28px;margin-top:32px;padding-top:32px;border-top:1px solid var(--line)}
.benefits li{min-width:0}
.benefits h3{font-size:17.5px}
.benefits p{font-size:15.5px}
.form{background:var(--pan);color:var(--ink);border-radius:14px;padding:22px}
.tabs2{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;background:var(--bg);border-radius:13px;margin-bottom:16px}
.tabs2 button{min-height:44px;border:0;border-radius:10px;background:none;color:var(--mut);font:700 15px var(--sans);cursor:pointer;padding:0 8px}
.tabs2 button[aria-selected=true]{background:#fff;color:var(--ink);box-shadow:0 2px 0 #cdd1d8}
.msg{font-size:15px;line-height:1.45;padding:11px 14px;border-radius:11px;background:var(--bg);margin-bottom:14px}
.msg:empty{display:none}
.msg.err{background:#fde9e6;color:#86170e;box-shadow:inset 4px 0 0 var(--red);font-weight:500}
.row{margin-bottom:14px}
.row label,.calc label{display:block;font-size:14.5px;font-weight:700;margin-bottom:6px}
input,select,textarea{font:400 16px/1.4 var(--sans);color:var(--ink)}
.row input,.row select,.row textarea,.calc input{display:block;width:100%;min-height:48px;padding:10px 14px;background:#fff;border:1.5px solid #bcc2cb;border-radius:11px}
.row textarea{min-height:150px;resize:vertical}
.row input:focus,.row select:focus,.row textarea:focus,.calc input:focus{outline:0;border-color:var(--red);box-shadow:0 0 0 4px rgba(207,42,30,.2)}
.note{font-size:13.5px;line-height:1.45;color:var(--mut);margin:7px 0 0}
.form form .btn{width:100%;margin-top:4px;min-height:52px}
.keyout{display:none}
.keyout.on{display:block}
.keyout h3{font-size:20px;font-weight:900;margin-bottom:12px}
.keybox{display:flex;align-items:center;gap:10px;background:var(--dev);color:var(--lcd);border-radius:13px;padding:8px 8px 8px 16px;font:500 14px/1.4 var(--mono)}
.keybox span{flex:1;min-width:0;word-break:break-all}
.keyout p{margin-top:12px;font-size:15.5px;line-height:1.75}
.keyout .note{font-size:13.5px;line-height:1.45}
.acts{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.mut{color:var(--mut)}

/* pricing */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:56px;align-items:start}
.split .lh .seq{display:none}
.calcbox{background:var(--dev);border-radius:22px;padding:14px;box-shadow:0 6px 0 #000}
.calc{display:grid;gap:16px;border-radius:14px;box-shadow:none;border:0;background:var(--pan);color:var(--ink);padding:22px}
.calc>div{min-width:0}
.calc output{display:block;background:var(--dev);color:var(--lcd);font:500 clamp(28px,3vw,38px)/1.2 var(--mono);padding:14px 18px;border-radius:12px;text-shadow:0 0 14px rgba(255,110,90,.35);overflow-wrap:anywhere}
.examples{display:grid;gap:14px}
.examples li{display:flex;gap:18px;align-items:flex-start;background:var(--pan);border:1px solid var(--line);border-radius:18px;padding:20px 22px;box-shadow:0 4px 0 #d3d7de}
.examples li>div{min-width:0}
.examples .pad{width:44px;height:44px;border-radius:12px;font-size:17px;margin:0;background:var(--dev);box-shadow:0 4px 0 #000}

/* support */
.sup{display:grid;grid-template-columns:minmax(0,640px) minmax(0,320px);gap:56px;align-items:start;justify-content:space-between}
.supform{background:var(--pan);border:1px solid var(--line);border-radius:20px;padding:12px 28px 26px;box-shadow:0 5px 0 #d3d7de;min-width:0}
.supform form{margin:0}
.supform .btn{min-width:160px}
.supform [role=status]{font-weight:500;min-height:1.5em}
.sidenote{background:var(--dev);color:#f1f2f4;border-radius:20px;padding:26px;box-shadow:0 6px 0 #000}
.sidenote h2{font-size:22px;font-weight:900;letter-spacing:-.02em;line-height:1.2}
.sidenote p{margin:10px 0 20px;color:#c9ced6;font-size:16px}
.sidenote .btn.ghost{box-shadow:0 4px 0 #000}

/* 404 */
.p-404{display:flex;flex-direction:column}
.nf{flex:1 0 auto;min-height:420px;display:flex;flex-direction:column;justify-content:center}
.nfp{max-width:520px;margin-bottom:36px;background:var(--dev);padding:10px;border-radius:14px}

/* footer */
.foot{padding:34px max(40px,calc((100% - 1080px)/2)) 30px;border-top:1px solid var(--line);background:#e3e6ea}
.footin{display:flex;align-items:center;justify-content:space-between;gap:16px 32px;flex-wrap:wrap}
.fl{display:flex;flex-wrap:wrap;gap:0 24px}
.fl a{display:inline-flex;align-items:center;min-height:44px;color:var(--ink);font-weight:500;font-size:15.5px;text-decoration:none}
.fl a:hover{color:var(--redi);text-decoration:underline}
.legal{margin-top:14px;padding-top:16px;border-top:1px solid #cfd3da;font-size:13.5px;line-height:1.5;color:var(--mut)}

@media (max-width:1240px){
.hero{grid-template-columns:minmax(0,1fr);gap:40px}
.doc{grid-template-columns:minmax(0,1fr)}
.doc .toc{order:-1;position:static;max-height:none}
.doc .prose{max-width:none}
.keytop{grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:8px 40px}
.benefits{grid-template-columns:minmax(0,1fr)}
.split,.sup{grid-template-columns:minmax(0,1fr);gap:48px}
.cards{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:959px){
html{scroll-padding-top:76px}
body{padding-bottom:calc(68px + env(safe-area-inset-bottom))}
.side{position:sticky;inset:auto;top:0;width:auto;flex-direction:row;align-items:center;justify-content:space-between;gap:12px;padding:8px 16px;border-right:0;border-bottom:1px solid var(--line);overflow:visible}
.sidecta{margin:0;padding:0}
.sidecta p{display:none}
.sidecta .btn{width:auto;min-height:44px;padding:0 15px;font-size:15px;box-shadow:0 3px 0 var(--redd)}
.mark{width:30px;height:30px;padding:4px}
.lt{font-size:18px}
.nav{position:fixed;left:0;right:0;bottom:0;z-index:40;margin:0;grid-template-columns:repeat(5,minmax(0,1fr));gap:2px;padding:6px 6px calc(6px + env(safe-area-inset-bottom));background:var(--pan);border-top:1px solid var(--line);box-shadow:0 -8px 24px -12px rgba(22,24,28,.25)}
.nav a{display:flex;flex-direction:column;justify-content:center;gap:4px;min-height:56px;padding:4px 2px;font-size:11.5px;font-weight:700;border-radius:12px;text-align:center}
.nav a[aria-current]{background:none}
.nav .ic{padding:5px 13px;border-radius:9px}
.nav .seq{display:none}
.nl{max-width:100%}
.shell{margin-left:0}
.lane{padding:48px 24px}
.foot{padding:30px 24px}
.keytop{grid-template-columns:minmax(0,1fr);grid-template-areas:"t" "f" "b";padding-top:20px}
.keyform{margin-top:20px}
.benefits{grid-template-columns:repeat(2,minmax(0,1fr))}
.lane.top{padding-top:20px;padding-bottom:36px}
.lane.transport{padding-top:0;padding-bottom:0}
}
@media (max-width:640px){
body{font-size:16.5px}
.lane{padding:40px 16px}
.foot{padding:28px 16px}
.lane.transport{padding:0 16px}
.hero{padding-top:28px;gap:32px}
.lh{margin-bottom:24px}
.lh .seq{display:none}
.btns .btn{flex:1 1 100%}
.cards,.cards.two,.steps,.benefits{grid-template-columns:minmax(0,1fr)}
.steps{gap:26px}
.steps li{display:flex;gap:16px;align-items:flex-start}
.steps li+li::before{display:none}
.steps .pad{width:48px;height:48px;border-radius:13px;font-size:19px;margin:0}
.steps li>div{min-width:0}
.lcd{grid-template-columns:repeat(2,minmax(0,1fr))}
.lcd>div{padding:16px 12px 16px 0;border-top:1px solid #30343c}
.lcd>div+div{padding-left:0;border-left:0}
.lcd>div:nth-child(odd):not(:first-child){padding-left:14px;border-left:1px solid #30343c}
.lcd>div:first-child{grid-column:1/-1;border-top:0}
.lcd>div:nth-child(2){border-top:1px solid #30343c}
.device,.keyform,.calcbox{border-radius:18px;padding:10px}
.pads{gap:3px}
.pads i{border-radius:3px}
.playhead{width:calc((100% + 3px)/16 - 3px)}
@keyframes ph{to{transform:translateX(calc(1600% + 48px))}}
.form{padding:16px}
.codetabs button{padding:0 12px}
pre.code{font-size:12.5px;padding:46px 14px 16px}
.prose{font-size:16.5px}
.prose td,.prose th{padding:11px 12px}
.takeaways{padding:22px 20px}
.supform{padding:6px 16px 20px}
.out .seq{grid-template-columns:repeat(16,minmax(0,1fr))}
.out .seq i:nth-child(n+17){display:none}
.outbtn,.outbtn .btn{width:100%}
.qa summary{padding-left:16px;font-size:16.5px}
.qa details p{padding:0 16px 18px}
.examples li{padding:16px;gap:14px}
.fl{gap:0 20px}
}
@media (prefers-reduced-motion:reduce){
html{scroll-behavior:auto}
.playhead{animation:none}
.btn{transition:none}
}