:root{
--bg:#04100f;--bg:#041013;--ink:#e9f6f8;--mut:#a9c6cc;--dim:#84a5ad;
--c:#4fdcf5;--c2:#a8f1fd;--cd:#062a33;--w:#ff9c85;
--g1:hsla(190,70%,72%,.11);--g2:hsla(190,70%,72%,.045);--ln:hsla(190,85%,82%,.17);--ln2:hsla(190,85%,82%,.32);
--col:680px;--r:22px;
--serif:"Instrument Serif","Iowan Old Style",Georgia,serif;--sans:"Hanken Grotesk",system-ui,-apple-system,"Segoe UI",sans-serif;--mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.7 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden;counter-reset:s}
body::before{content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;background:
radial-gradient(620px circle at 12% 4%,hsla(190,95%,45%,.26),transparent 62%),
radial-gradient(520px circle at 92% 32%,hsla(12,95%,62%,.13),transparent 62%),
radial-gradient(760px circle at 40% 105%,hsla(200,90%,42%,.22),transparent 62%),
linear-gradient(180deg,#051418,#030b0d)}
body::after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.5;background-image:radial-gradient(hsla(190,80%,85%,.09) 1px,transparent 1.2px);background-size:26px 26px;-webkit-mask-image:linear-gradient(180deg,#000,transparent 70%);mask-image:linear-gradient(180deg,#000,transparent 70%)}
a{color:var(--c2);text-decoration-color:hsla(190,90%,70%,.45);text-underline-offset:3px}
a:hover{color:#fff;text-decoration-color:var(--c)}
:focus-visible{outline:2px solid var(--c2);outline-offset:3px;border-radius:6px}
::selection{background:hsla(190,90%,60%,.35);color:#fff}
h1,h2,h3,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1,h2{font-family:var(--serif);font-weight:400;letter-spacing:-.012em;text-wrap:balance}
h1{font-size:clamp(40px,8.6vw,66px);line-height:1.02}
h2{font-size:clamp(29px,5.4vw,38px);line-height:1.1}
h3{font:600 18px/1.35 var(--sans);letter-spacing:-.005em}
code,pre,kbd{font-family:var(--mono)}
.skip{position:absolute;left:16px;top:-80px;z-index:100;background:var(--c);color:var(--cd);padding:12px 18px;border-radius:12px;font-weight:600;text-decoration:none}
.skip:focus{top:12px}

/* glass */
.glass,.form,.codebox,.calc,.tile,.qa,.toc-in,.hdr,.prose pre.code{
background:linear-gradient(180deg,var(--g1),var(--g2));border:1px solid var(--ln);border-radius:var(--r);
-webkit-backdrop-filter:blur(18px) saturate(150%);backdrop-filter:blur(18px) saturate(150%);
box-shadow:inset 0 1px 0 hsla(0,0%,100%,.13),inset 0 -1px 0 hsla(0,0%,0%,.25),0 24px 60px -28px rgba(0,0,0,.75)}
.stack{position:relative;z-index:0;min-width:0}
.stack::before,.stack::after{content:"";position:absolute;inset:0;border-radius:var(--r);border:1px solid var(--ln);background:linear-gradient(180deg,hsla(190,70%,72%,.07),hsla(190,70%,72%,.02));z-index:-1;pointer-events:none}
.stack::before{transform:translate(10px,11px);opacity:.75}
.stack::after{transform:translate(20px,22px);opacity:.4;z-index:-2}
.scene{position:relative}
.orbs{position:absolute;inset:-40px -30px;z-index:-1;pointer-events:none}
.orbs svg{position:absolute;inset:0;width:100%;height:100%}
.orb{position:absolute;border-radius:50%;filter:blur(2px)}
.o1{width:92px;height:92px;right:12%;top:2%;background:radial-gradient(circle at 35% 30%,#d5fbff,#3fd2ee 45%,#0b7e95 78%);box-shadow:0 0 70px 14px hsla(190,95%,55%,.5);animation:fl 9s ease-in-out infinite alternate}
.o2{width:64px;height:64px;left:10%;bottom:6%;background:radial-gradient(circle at 35% 30%,#ffe3da,#ff9c85 50%,#b9442c 85%);box-shadow:0 0 60px 10px hsla(12,95%,65%,.4);animation:fl 11s ease-in-out infinite alternate-reverse}
@keyframes fl{to{transform:translate(-14px,16px)}}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:46px;padding:10px 20px;border-radius:999px;border:1px solid transparent;
background:linear-gradient(180deg,#8eeeff,#3fd3ef);color:#03222a;font:600 15.5px/1.2 var(--sans);text-decoration:none;cursor:pointer;
box-shadow:inset 0 1px 0 hsla(0,0%,100%,.6),0 0 0 1px hsla(190,90%,60%,.25),0 10px 34px -8px hsla(190,95%,55%,.6);transition:transform .15s,box-shadow .2s,background .2s}
.btn:hover{color:#03222a;transform:translateY(-1px);box-shadow:inset 0 1px 0 hsla(0,0%,100%,.7),0 0 0 1px hsla(190,90%,70%,.4),0 14px 44px -6px hsla(190,95%,58%,.8)}
.btn:active{transform:translateY(0)}
.btn[disabled]{opacity:.55;cursor:progress}
.btn.big{min-height:54px;padding:13px 26px;font-size:17px}
.btn.sm{min-height:44px;padding:8px 16px;font-size:14.5px}
.btn.ghost{background:hsla(190,70%,72%,.07);color:var(--ink);border-color:var(--ln2);box-shadow:inset 0 1px 0 hsla(0,0%,100%,.1)}
.btn.ghost:hover{color:#fff;background:hsla(190,70%,72%,.14);box-shadow:inset 0 1px 0 hsla(0,0%,100%,.16)}
.arr{font-family:var(--mono);font-weight:400;transition:transform .2s}
.btn:hover .arr{transform:translateX(3px)}
.acts{display:flex;flex-wrap:wrap;gap:12px}

/* header: floating glass pill */
.bar{position:sticky;top:0;z-index:50;padding:12px 16px 0}
.hdr{max-width:calc(var(--col) + 96px);margin:0 auto;display:flex;align-items:center;gap:8px;padding:7px 7px 7px 16px;border-radius:999px;
background:linear-gradient(180deg,hsla(192,60%,22%,.72),hsla(194,60%,10%,.72));position:relative}
.logo{display:inline-flex;align-items:center;gap:9px;color:var(--ink);text-decoration:none;font:400 23px/1 var(--serif);letter-spacing:-.01em;min-height:44px;margin-right:auto}
.logo:hover{color:#fff}
.mark{flex:none;filter:drop-shadow(0 0 8px hsla(190,95%,60%,.55))}
.nav{display:flex;align-items:center;gap:2px}
.nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 13px;border-radius:999px;color:var(--mut);text-decoration:none;font-size:15px;font-weight:500}
.nav a:hover{color:#fff;background:hsla(190,70%,72%,.09)}
.nav a[aria-current]{color:#fff;background:hsla(190,70%,72%,.13);box-shadow:inset 0 0 0 1px var(--ln)}
.btn.key{min-height:44px;padding:8px 18px;font-size:15px;white-space:nowrap}
.burger{display:none;width:44px;height:44px;flex:none;border-radius:50%;border:1px solid var(--ln);background:hsla(190,70%,72%,.07);cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.burger i{display:block;width:16px;height:1.5px;background:var(--ink);border-radius:2px}
@media(max-width:760px){
.burger{display:inline-flex}
.hdr{padding-left:12px;gap:6px}
.logo{font-size:21px;gap:7px}
.logo .mark{width:26px;height:26px}
.btn.key{padding:8px 14px;font-size:14px}
.nav{display:none;position:absolute;left:0;right:0;top:calc(100% + 8px);flex-direction:column;align-items:stretch;gap:2px;padding:10px;border-radius:24px;
background:hsla(193,60%,9%,.96);border:1px solid var(--ln2);box-shadow:0 30px 60px -20px #000}
.nav.open{display:flex}
.nav a{min-height:48px;padding:0 16px;font-size:16px}
}
@media(max-width:374px){.logo span{font-size:19px}.btn.key{padding:8px 11px;font-size:13.5px}}

/* the letter column and its light thread */
main{display:block;padding:0 20px}
.letter{position:relative;max-width:var(--col);margin:0 auto;padding:56px 0 40px}
.letter>*{min-width:0}
.sec,.prose,.closing,.ticket,.signup,.take,.toc{margin-top:76px}
main h2{position:relative;counter-increment:s;margin-bottom:26px}
main h2::before{content:counter(s,decimal-leading-zero);display:block;font:500 12.5px/1 var(--mono);letter-spacing:.14em;color:var(--c);margin-bottom:14px;padding-left:34px;
background:linear-gradient(90deg,var(--c),transparent) 0 50%/24px 1px no-repeat}
.closing h2,h2.label{counter-increment:none}
.closing h2::before,h2.label::before{content:none}
@media(min-width:900px){
.letter::before{content:"";position:absolute;left:-48px;top:70px;bottom:120px;width:1px;background:linear-gradient(180deg,transparent,var(--c) 90px,hsla(190,90%,65%,.35) 55%,var(--w) 92%,transparent);box-shadow:0 0 14px 1px hsla(190,95%,60%,.45)}
.p-404::before{content:none}
main h2::before{position:absolute;left:-65px;top:.1em;width:35px;height:35px;margin:0;padding:0;border-radius:50%;display:flex;align-items:center;justify-content:center;letter-spacing:0;font-size:11.5px;color:var(--c2);
background:#072027;border:1px solid var(--ln2);box-shadow:0 0 0 5px var(--bg),0 0 22px hsla(190,95%,60%,.55)}
}

/* hero */
.hero{padding-top:34px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font:500 12.5px/1.4 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--c2);padding:8px 14px 8px 12px;border-radius:999px;border:1px solid var(--ln);background:hsla(190,70%,72%,.07);margin-bottom:26px}
.eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--w);box-shadow:0 0 12px 2px hsla(12,95%,65%,.8);flex:none}
.lead{font-size:clamp(18px,2.6vw,20.5px);line-height:1.6;color:var(--mut);margin-top:22px;max-width:60ch}
.hero .acts{margin-top:32px}
.bul{margin-top:34px;border-top:1px solid var(--ln)}
.bul li{position:relative;padding:14px 0 14px 30px;border-bottom:1px solid var(--ln);color:var(--ink);font-size:16.5px;line-height:1.5}
.bul li::before{content:"";position:absolute;left:4px;top:22px;width:9px;height:9px;border-radius:50%;background:var(--c);box-shadow:0 0 12px 2px hsla(190,95%,60%,.7)}
.try{margin-top:64px}

/* facts */
.facts{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));margin-top:48px;border-top:1px solid var(--ln);border-bottom:1px solid var(--ln)}
.facts>div{display:flex;flex-direction:column-reverse;justify-content:flex-end;gap:6px;padding:18px 12px 18px 0;min-width:0}
.facts>div+div{padding-left:14px;border-left:1px solid var(--ln)}
.facts dd{font:400 30px/1 var(--serif);color:#fff;overflow-wrap:anywhere}
.facts dt{font-size:13px;line-height:1.35;color:var(--mut)}
@media(max-width:620px){
.facts{grid-template-columns:1fr 1fr}
.facts>div{padding:16px 10px 16px 0;border-top:1px solid var(--ln)}
.facts>div:nth-child(-n+2){border-top:0}
.facts>div+div{padding-left:0;border-left:0}
.facts>div:nth-child(even){padding-left:14px;border-left:1px solid var(--ln)}
.facts>div:last-child:nth-child(odd){grid-column:1/-1}
}
.facts.ep{grid-template-columns:1fr 1fr;margin-top:34px}
.facts.ep dd{font:500 14px/1.5 var(--mono);color:var(--c2)}
@media(max-width:620px){.facts.ep{grid-template-columns:1fr}.facts.ep>div:nth-child(n){padding:14px 0;border-left:0}.facts.ep>div:nth-child(2){border-top:1px solid var(--ln)}}

/* code */
pre.code{position:relative;margin:0;font-size:13.5px;line-height:1.7;color:#d9f1f5;-moz-tab-size:2;tab-size:2}
pre.code code{display:block;overflow-x:auto;padding:18px 20px 22px;white-space:pre;scrollbar-width:thin;scrollbar-color:hsla(190,80%,70%,.35) transparent}
pre.code .k{color:#6fe3f8}
pre.code .s{color:#ffb9a6}
pre.code .c{color:#8fb0b8;font-style:italic}
.copy{position:absolute;right:8px;top:8px;z-index:2;min-height:44px;min-width:64px;padding:0 14px;border-radius:999px;border:1px solid var(--ln2);background:hsla(193,60%,12%,.85);color:var(--c2);font:500 12.5px/1 var(--mono);cursor:pointer}
.copy:hover{background:hsla(190,70%,30%,.7);color:#fff}
.codebox{overflow:hidden;background:linear-gradient(180deg,hsla(192,65%,16%,.62),hsla(194,70%,7%,.7))}
.codetabs{display:flex;gap:4px;padding:8px 92px 8px 8px;border-bottom:1px solid var(--ln);background:hsla(190,70%,72%,.05);overflow-x:auto}
.codetabs button{min-height:44px;padding:0 16px;border-radius:999px;border:1px solid transparent;background:none;color:var(--mut);font:500 13.5px/1 var(--mono);cursor:pointer;white-space:nowrap}
.codetabs button:hover{color:#fff}
.codetabs button[aria-selected="true"]{color:#03222a;background:linear-gradient(180deg,#8eeeff,#49d6f1);box-shadow:0 0 22px -4px hsla(190,95%,60%,.8)}
.codebox pre.code{position:static}
.codebox{position:relative}
.codebox .copy{top:8px;right:8px}
.prose pre.code{margin:26px 0;border-radius:18px;background:linear-gradient(180deg,hsla(192,65%,16%,.55),hsla(194,70%,7%,.6));overflow:hidden}
.prose pre.code code{padding-top:58px}
.prose pre.code::before{content:"";position:absolute;left:18px;top:22px;width:9px;height:9px;border-radius:50%;background:var(--w);box-shadow:16px 0 0 hsla(190,80%,80%,.35),32px 0 0 hsla(190,80%,80%,.2)}
.prose pre.code::after{content:"";position:absolute;left:0;right:0;top:52px;border-top:1px solid var(--ln)}

/* tiles */
.tiles{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.tile{padding:22px 22px 24px;border-radius:20px;min-width:0;position:relative;overflow:hidden}
.tile::before{content:"";position:absolute;right:-40px;top:-40px;width:110px;height:110px;border-radius:50%;background:radial-gradient(circle,hsla(190,95%,60%,.28),transparent 70%)}
.tile:nth-child(3n+2)::before{background:radial-gradient(circle,hsla(12,95%,65%,.22),transparent 70%);right:auto;left:-40px;top:auto;bottom:-40px}
.tile h3{margin-bottom:8px;color:#fff}
.tile p{font-size:15.5px;line-height:1.6;color:var(--mut)}
@media(max-width:620px){.tiles{grid-template-columns:1fr}}

/* steps */
.steps{counter-reset:st;position:relative}
.steps li{counter-increment:st;position:relative;padding:0 0 30px 64px}
.steps li:last-child{padding-bottom:0}
.steps li::before{content:counter(st);position:absolute;left:0;top:-2px;width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;font:400 26px/1 var(--serif);color:#fff;
background:linear-gradient(180deg,var(--g1),var(--g2));border:1px solid var(--ln2);box-shadow:inset 0 1px 0 hsla(0,0%,100%,.15),0 0 26px -6px hsla(190,95%,60%,.6)}
.steps li::after{content:"";position:absolute;left:22px;top:50px;bottom:6px;width:1px;background:linear-gradient(180deg,var(--ln2),transparent)}
.steps li:last-child::after{content:none}
.steps h3{margin-bottom:6px;color:#fff;padding-top:8px}
.steps p{color:var(--mut);font-size:16px}

/* rows */
.rows{border-top:1px solid var(--ln)}
.row2{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,8fr);gap:8px 28px;padding:22px 0;border-bottom:1px solid var(--ln)}
.row2 h3{font:400 23px/1.2 var(--serif);color:#fff}
.row2 p{color:var(--mut);font-size:16px;line-height:1.62}
@media(max-width:620px){.row2{grid-template-columns:1fr}}

/* prose */
.prose{overflow-wrap:break-word}
.prose>*+*{margin-top:20px}
.prose h2{margin-top:76px;margin-bottom:0}
.prose>h2:first-child{margin-top:0}
.prose h3{margin-top:36px;font-size:20px;color:#fff}
.prose p,.prose li{color:#d3e6ea}
.prose strong,.prose b{color:#fff;font-weight:600}
.prose ul,.prose ol{padding-left:4px}
.prose li{position:relative;padding-left:26px;margin-top:10px}
.prose ul>li::before{content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--c);box-shadow:0 0 10px 1px hsla(190,95%,60%,.6)}
.prose ol{counter-reset:ol}
.prose ol>li{counter-increment:ol}
.prose ol>li::before{content:counter(ol);position:absolute;left:0;top:.28em;font:500 12.5px/1.6 var(--mono);color:var(--c)}
.prose :not(pre)>code{font-size:.86em;padding:.14em .42em;border-radius:7px;background:hsla(190,70%,72%,.11);border:1px solid var(--ln);color:var(--c2);overflow-wrap:anywhere}
.prose table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:28px 0;font-size:15px;line-height:1.5;border:1px solid var(--ln);border-radius:16px;background:linear-gradient(180deg,var(--g1),var(--g2))}
.prose th,.prose td{padding:13px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--ln);min-width:120px}
.prose th{font:500 12.5px/1.4 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--c2);background:hsla(190,70%,72%,.07);white-space:nowrap}
.prose td{color:#d3e6ea}
.prose tr:last-child td{border-bottom:0}
.prose blockquote{margin:28px 0;padding:6px 0 6px 22px;border-left:2px solid var(--w);font:italic 400 23px/1.4 var(--serif);color:#fff}
.prose.long{font-size:18px;line-height:1.78}
.prose.long>p:first-of-type::first-letter{font:400 3.5em/.82 var(--serif);float:left;padding:6px 5px 0 0;color:var(--c2);text-shadow:0 0 22px hsla(190,95%,60%,.6)}
.prose.legal{margin-top:44px}

/* faq */
.qas{display:grid;gap:10px}
.qa{border-radius:18px;overflow:hidden}
.qa summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px;padding:14px 16px 14px 22px;cursor:pointer;list-style:none;font-weight:600;font-size:16.5px;line-height:1.4;color:#fff}
.qa summary::-webkit-details-marker{display:none}
.qa summary i{flex:none;width:32px;height:32px;border-radius:50%;border:1px solid var(--ln2);position:relative;transition:transform .25s,background .25s}
.qa summary i::before,.qa summary i::after{content:"";position:absolute;left:50%;top:50%;width:12px;height:1.5px;margin:-.75px 0 0 -6px;background:var(--c2)}
.qa summary i::after{transform:rotate(90deg)}
.qa[open] summary i{transform:rotate(45deg);background:hsla(190,95%,60%,.2)}
.qa[open]{border-color:var(--ln2)}
.qa-a{padding:0 22px 20px;color:var(--mut);font-size:16px}

/* closing */
.closing{margin-top:96px;padding-bottom:30px}
.end{padding:40px 34px 34px;text-align:left;position:relative;overflow:hidden}
.end::before{content:"";position:absolute;right:-70px;top:-70px;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle,hsla(190,95%,60%,.35),transparent 68%)}
.end h2{font-size:clamp(32px,6vw,44px);margin-bottom:14px;position:relative}
.end>p{color:var(--mut);max-width:48ch;position:relative}
.end .btn{margin-top:26px}
.sign{margin-top:34px;padding-top:18px;border-top:1px solid var(--ln);display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 14px}
.sign em{font:italic 400 28px/1 var(--serif);color:#fff}
.sign span{font-size:14px;color:var(--mut)}

/* inner page top */
.top{padding-top:10px}
.top h1{font-size:clamp(36px,7.2vw,54px);line-height:1.05}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:4px 10px;font:500 12.5px/1.4 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--mut);margin-bottom:22px}
.crumbs a{color:var(--c2);text-decoration:none;display:inline-flex;align-items:center;min-height:44px}
.crumbs a:hover{color:#fff}
.crumbs i{font-style:normal;color:var(--dim)}
.meta{display:inline-flex;gap:10px;align-items:center;margin-top:24px;font:500 12.5px/1.4 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--mut);padding:8px 14px;border-radius:999px;border:1px solid var(--ln)}
.meta time{color:var(--c2)}

/* toc + takeaways */
.toc-h{font:500 12.5px/1.4 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--c2);margin-bottom:12px}
.toc{margin-top:40px}
.toc-in{padding:20px 22px 16px;border-radius:20px}
.toc ol{counter-reset:tc}
.toc li{counter-increment:tc;border-top:1px solid var(--ln)}
.toc a{display:flex;gap:12px;align-items:baseline;min-height:44px;padding:10px 0;color:var(--ink);text-decoration:none;font-size:15px;line-height:1.4}
.toc a::before{content:counter(tc,decimal-leading-zero);font:500 11.5px/1.6 var(--mono);color:var(--c);flex:none}
.toc a:hover{color:var(--c2)}
@media(min-width:1280px){
.toc{position:absolute;left:calc(100% + 44px);top:0;bottom:0;width:236px;margin:0;padding-top:120px;pointer-events:none}
.toc-in{position:sticky;top:104px;pointer-events:auto;max-height:calc(100vh - 130px);overflow:auto;padding:18px 18px 10px}
.toc a{font-size:14px;min-height:40px;padding:8px 0}
}
.take{margin-top:40px;padding:24px 24px 14px;position:relative;overflow:hidden}
.take::before{content:"";position:absolute;left:-50px;bottom:-50px;width:170px;height:170px;border-radius:50%;background:radial-gradient(circle,hsla(12,95%,65%,.22),transparent 70%)}
.take ol{counter-reset:tk;position:relative}
.take li{counter-increment:tk;position:relative;padding:12px 0 12px 44px;border-top:1px solid var(--ln);font-size:16px;line-height:1.55;color:var(--ink)}
.take li::before{content:counter(tk);position:absolute;left:2px;top:9px;font:400 26px/1.2 var(--serif);color:var(--w)}

/* signup */
.signup{margin-top:26px}
.letter.p-key{padding-top:30px}
.p-key .crumbs{margin-bottom:10px}
h2.label{font:500 12.5px/1.4 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--c2);margin-bottom:14px;display:flex;align-items:center;gap:10px}
h2.label::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--ln2),transparent)}
.p-key .top h1{font-size:clamp(34px,6.6vw,46px)}
.p-key .lead{font-size:17.5px;margin-top:16px}
.form{padding:22px 24px 24px;background:linear-gradient(180deg,hsla(192,60%,24%,.6),hsla(194,65%,9%,.66));border-color:var(--ln2)}
.tabs2{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;border-radius:999px;background:hsla(195,70%,5%,.55);border:1px solid var(--ln);margin-bottom:18px}
.tabs2 button{min-height:44px;border-radius:999px;border:0;background:none;color:var(--mut);font:600 15px/1.2 var(--sans);cursor:pointer;padding:0 10px}
.tabs2 button:hover{color:#fff}
.tabs2 button[aria-selected="true"]{background:linear-gradient(180deg,hsla(190,80%,75%,.26),hsla(190,80%,75%,.12));color:#fff;box-shadow:inset 0 1px 0 hsla(0,0%,100%,.2),0 0 0 1px var(--ln2)}
.msg{font-size:15px;line-height:1.45;border-radius:14px}
.msg:empty{display:none}
.msg:not(:empty){padding:12px 14px;margin-bottom:16px;background:hsla(190,80%,60%,.12);border:1px solid var(--ln2);color:var(--ink)}
.msg.err:not(:empty){background:hsla(8,90%,55%,.16);border-color:hsla(10,95%,72%,.55);color:#ffd9cf}
.row{margin-bottom:14px}
.row label,.calc label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:7px}
.row input,.calc input{display:block;width:100%;min-height:50px;padding:10px 16px;border-radius:14px;border:1px solid var(--ln2);background:hsla(195,70%,4%,.6);color:#fff;font:400 16px/1.3 var(--sans);box-shadow:inset 0 2px 6px rgba(0,0,0,.4);transition:border-color .2s,box-shadow .2s}
.row input:hover,.calc input:hover{border-color:hsla(190,85%,82%,.5)}
.row input:focus,.calc input:focus{outline:0;border-color:var(--c);box-shadow:inset 0 2px 6px rgba(0,0,0,.4),0 0 0 3px hsla(190,95%,60%,.28),0 0 28px -4px hsla(190,95%,60%,.6)}
.note{font-size:13.5px;line-height:1.5;color:var(--mut);margin-top:7px}
.form form>.btn{width:100%;min-height:54px;font-size:16.5px;margin-top:6px}
.form form>.note{text-align:center;margin-top:12px}
.keyout{display:none}
.keyout.on{display:block}
.keyout h3{font:400 30px/1.1 var(--serif);color:#fff;margin-bottom:14px}
.keybox{display:flex;align-items:center;gap:10px;padding:8px 8px 8px 16px;border-radius:16px;border:1px solid var(--c);background:hsla(195,70%,4%,.7);box-shadow:0 0 30px -6px hsla(190,95%,60%,.6)}
.keybox span{flex:1;min-width:0;font:500 14px/1.5 var(--mono);color:var(--c2);overflow-wrap:anywhere;word-break:break-all}
.keyout>p{margin-top:14px;font-size:15px;line-height:1.9;color:var(--mut);overflow-wrap:anywhere}
.keyout>p.note{font-size:13.5px;line-height:1.5;margin-top:10px}
.keyout strong{color:var(--ink);font-weight:600}
.keyout code{font-size:13px;color:var(--c2);overflow-wrap:anywhere}
.mut{color:var(--dim)}
.keyout .acts{margin-top:18px;gap:8px}
.aside{margin-top:38px;font:italic 400 20px/1.4 var(--serif);color:var(--mut);text-align:center}

/* pricing */
.ticket{margin-top:40px}
.pr{padding:30px 30px 30px;position:relative;overflow:hidden}
.pr::before{content:"";position:absolute;right:-60px;top:-80px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,hsla(190,95%,60%,.38),transparent 68%)}
.price{position:relative;display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 16px}
.price b{font:400 clamp(72px,19vw,112px)/.9 var(--serif);color:#fff;letter-spacing:-.03em;text-shadow:0 0 50px hsla(190,95%,60%,.55)}
.price span{font-size:16px;color:var(--mut);max-width:16ch;line-height:1.4}
.facts.in{grid-template-columns:repeat(4,minmax(0,1fr));margin-top:26px;position:relative}
.facts.in dd{font-size:27px}
@media(max-width:620px){.facts.in{grid-template-columns:1fr 1fr}.pr{padding:24px 20px}}
.sub{margin-top:20px;font:italic 400 20px/1.4 var(--serif);color:var(--c2);position:relative}
.pr .btn{margin-top:20px;position:relative}
.calc{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:24px;background:linear-gradient(180deg,hsla(192,60%,24%,.55),hsla(194,65%,9%,.62))}
.calc>div{min-width:0}
.calc>div:last-child{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:6px 18px;padding-top:18px;border-top:1px solid var(--ln)}
.calc>div:last-child label{margin:0;font-weight:500;color:var(--mut);font-size:15px}
.calc output{font:400 clamp(44px,11vw,60px)/1 var(--serif);color:#fff;text-shadow:0 0 34px hsla(190,95%,60%,.6);overflow-wrap:anywhere}
@media(max-width:520px){.calc{grid-template-columns:1fr;padding:20px}}

/* 404 */
.nf{padding-top:40px}
.nfb{padding:44px 34px}
.nfb .acts{margin-top:30px}

/* footer */
.ftr{padding:0 20px 44px;margin-top:40px}
.ftr-in{max-width:var(--col);margin:0 auto;padding-top:28px;border-top:1px solid var(--ln)}
.ftr-t{color:var(--mut);font-size:15px;margin-top:4px}
.ftr-l{display:flex;flex-wrap:wrap;gap:0 22px;margin-top:16px}
.ftr-l a{display:inline-flex;align-items:center;min-height:44px;color:var(--ink);text-decoration:none;font-size:15px}
.ftr-l a:hover{color:var(--c2)}
.legal-note{margin-top:16px;font-size:13.5px;line-height:1.6;color:var(--dim)}

@media(max-width:620px){
body{font-size:16.5px}
main{padding:0 18px}
.letter{padding-top:36px}
.sec,.prose,.closing,.ticket{margin-top:60px}
.prose h2{margin-top:60px}
.stack::before{transform:translate(6px,8px)}
.stack::after{transform:translate(12px,16px)}
.orbs{inset:-30px -10px}
.form{padding:18px 16px 20px}
.end{padding:30px 22px 26px}
.acts .btn.big{flex:1 1 auto}
.prose.long{font-size:17px}
.nfb{padding:32px 22px}
}
@media(prefers-reduced-motion:reduce){
html{scroll-behavior:auto}
*,*::before,*::after{animation:none!important;transition:none!important}
}