:root{--bg:#051214;--bg2:#08191c;--tx:#e6f5f3;--mu:#a6c4c0;--aq:#45e0d2;--aq2:#8ff3e9;--ink:#03211e;--ln:rgba(190,255,248,.14);--ln2:rgba(190,255,248,.26);--gl:rgba(190,255,248,.06);--code:rgba(2,10,12,.72);--th:164px;--bar:60px;--r:24px;--fd:"Syne",system-ui,sans-serif;--ft:"Mulish",system-ui,-apple-system,"Segoe UI",sans-serif;--fm:"Roboto Mono",ui-monospace,Menlo,Consolas,monospace}
*,*::before,*::after{box-sizing:border-box}
html{background:var(--bg);-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--bar) + 24px)}
body{margin:0;color:var(--tx);font:400 17px/1.65 var(--ft);counter-reset:sec;min-height:100vh;overflow-wrap:break-word}
body::before{content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;background:radial-gradient(60vw 46vh at 12% -6%,rgba(46,196,186,.26),transparent 70%),radial-gradient(52vw 50vh at 96% 18%,rgba(22,112,150,.28),transparent 72%),radial-gradient(70vw 50vh at 46% 108%,rgba(30,160,150,.2),transparent 70%),linear-gradient(180deg,#051214,#061a1d 60%,#04100f)}
[hidden]{display:none!important}
img,svg{max-width:100%}
a{color:var(--aq2);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:#fff}
:focus-visible{outline:2px solid #c8fff9;outline-offset:3px;border-radius:6px}
h1,h2,h3{font-family:var(--fd);line-height:1.08;margin:0;letter-spacing:-.015em;font-weight:800}
p{margin:0 0 1em}
code{font-family:var(--fm);font-size:.9em}
.wrap{width:100%;max-width:1220px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:12px;top:-80px;z-index:99;background:var(--aq);color:var(--ink);padding:12px 18px;border-radius:12px;font-weight:700}
.skip:focus{top:12px}

/* glass */
.glass,.form{position:relative;background:linear-gradient(158deg,rgba(190,255,248,.1),rgba(190,255,248,.035) 46%,rgba(120,220,235,.05));border:1px solid var(--ln);border-radius:var(--r);box-shadow:inset 0 1px 0 rgba(255,255,255,.16),inset 0 0 40px rgba(69,224,210,.03),0 34px 70px -38px rgba(0,0,0,.75);-webkit-backdrop-filter:blur(20px) saturate(150%);backdrop-filter:blur(20px) saturate(150%)}
/* waterline reflection */
.pan::after,.sheet::after,.hero-c::after,.form::after,.calcp::after,.band::after,.tk::after{content:"";position:absolute;left:5%;right:5%;top:calc(100% + 7px);height:34px;border-radius:0 0 50% 50%/0 0 100% 100%;background:linear-gradient(180deg,rgba(110,236,224,.2),rgba(110,236,224,0));border-top:1px solid rgba(160,250,240,.3);filter:blur(5px);pointer-events:none}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;border:1px solid transparent;border-radius:14px;background:linear-gradient(180deg,#9af5eb,#3bd6c8);color:var(--ink);font:700 .98rem/1.1 var(--ft);text-decoration:none;cursor:pointer;box-shadow:inset 0 1px 0 rgba(255,255,255,.6),0 10px 30px -10px rgba(69,224,210,.65);transition:transform .15s,box-shadow .15s,background .15s;text-align:center}
.btn:hover{color:var(--ink);transform:translateY(-1px);box-shadow:inset 0 1px 0 rgba(255,255,255,.7),0 16px 36px -10px rgba(69,224,210,.8)}
.btn:active{transform:translateY(1px)}
.btn.big{min-height:54px;padding:0 28px;font-size:1.05rem;border-radius:16px}
.btn.ghost{background:rgba(190,255,248,.06);color:var(--tx);border-color:var(--ln2);box-shadow:inset 0 1px 0 rgba(255,255,255,.12)}
.btn.ghost:hover{color:#fff;border-color:var(--aq);background:rgba(190,255,248,.12)}
.btn.sm{min-height:44px;padding:0 16px;font-size:.9rem;border-radius:12px}
.btn[disabled]{opacity:.6;cursor:progress}

/* header */
.hd{position:sticky;top:calc(-1*var(--th));z-index:40}
.hd-top{height:var(--th);overflow:hidden;display:flex;align-items:center}
.hd-top-in{display:flex;flex-direction:column;gap:16px;padding-bottom:calc(min(3.9vw,54px)*.5)}
.wm{position:relative;align-self:flex-start;margin:0;font:800 min(3.9vw,54px)/1 var(--fd);letter-spacing:-.03em;white-space:nowrap;color:var(--tx)}
.wm i{font-style:normal;color:var(--aq)}
.wm::after{content:attr(data-t);position:absolute;left:0;top:calc(100% + 1px);transform:scaleY(-1);color:var(--aq);opacity:.36;filter:blur(1.2px);-webkit-mask-image:linear-gradient(180deg,transparent 30%,#000);mask-image:linear-gradient(180deg,transparent 30%,#000);pointer-events:none}
.wm::before{content:"";position:absolute;left:-200vw;right:-200vw;top:calc(100% + 1px);height:1px;background:linear-gradient(90deg,transparent,rgba(160,250,240,.4) 40%,rgba(160,250,240,.4) 60%,transparent)}
.hd-meta{display:flex;align-items:center;justify-content:space-between;gap:20px;min-width:0}
.hd-meta p{margin:0}
.tag{font-size:.95rem;color:var(--mu)}
.ep code{display:inline-block;padding:6px 12px;border:1px solid var(--ln);border-radius:999px;background:rgba(2,10,12,.4);color:var(--aq2);font-size:.78rem;max-width:100%;overflow-wrap:anywhere}
.hd-bar{height:var(--bar);background:rgba(5,20,22,.66);border-block:1px solid var(--ln);-webkit-backdrop-filter:blur(22px) saturate(160%);backdrop-filter:blur(22px) saturate(160%);box-shadow:0 18px 40px -28px rgba(0,0,0,.9)}
.hd-bar-in{position:relative;display:flex;align-items:center;gap:14px;height:100%}
.logo{display:inline-flex;align-items:center;gap:10px;min-height:44px;min-width:44px;color:var(--aq);text-decoration:none;font:700 1rem/1 var(--fd)}
.logo span{color:var(--tx)}
.hd .logo span{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
.mk{width:34px;height:34px;flex:none}
.nav{display:flex;gap:2px;margin-left:auto}
.nav a{display:flex;align-items:center;min-height:44px;padding:0 15px;border-radius:12px;color:var(--mu);font-weight:600;font-size:.95rem;text-decoration:none}
.nav a:hover{color:#fff;background:var(--gl)}
.nav a[aria-current]{color:var(--tx);background:rgba(190,255,248,.08);box-shadow:inset 0 0 0 1px var(--ln)}
.burger{display:none;width:46px;height:46px;border:1px solid var(--ln2);border-radius:12px;background:var(--gl);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:0}
.burger i{display:block;width:20px;height:2px;border-radius:2px;background:var(--tx)}

/* ripple */
.rip{position:absolute;left:50%;top:-30px;width:1500px;max-width:none;height:510px;transform:translateX(-50%);color:var(--aq);z-index:-1;pointer-events:none;-webkit-mask-image:radial-gradient(closest-side,#000 30%,transparent);mask-image:radial-gradient(closest-side,#000 30%,transparent)}
.rip ellipse{stroke-opacity:calc(.8 - var(--i)*.1);animation:rp 6s ease-in-out infinite;animation-delay:calc(var(--i)*.45s)}
@keyframes rp{0%,100%{stroke-opacity:calc(.8 - var(--i)*.1)}50%{stroke-opacity:calc(.3 - var(--i)*.035)}}

/* shared heads */
.sh{display:flex;align-items:center;gap:18px;margin:0 0 28px}
.sh::before{counter-increment:sec;content:counter(sec,decimal-leading-zero);flex:none;display:grid;place-items:center;width:62px;height:30px;border:1px solid var(--aq);border-radius:50%;font:500 .76rem/1 var(--fm);color:var(--aq2);box-shadow:0 0 0 6px rgba(69,224,210,.1),0 0 0 13px rgba(69,224,210,.045)}
.sh h2{font-size:clamp(1.5rem,2.6vw,2.15rem)}
.cap{margin:0 0 14px;font:500 .76rem/1.3 var(--fm);letter-spacing:.12em;text-transform:uppercase;color:var(--aq2)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;margin:0 0 20px;padding:7px 14px 7px 12px;border:1px solid var(--ln2);border-radius:999px;background:var(--gl);font:500 .78rem/1.3 var(--fm);letter-spacing:.06em;color:var(--aq2)}
.eyebrow::before{content:"";width:16px;height:8px;border:1.5px solid var(--aq);border-radius:50%}
.lead{font-size:clamp(1.06rem,1.5vw,1.22rem);line-height:1.6;color:#cfe6e3;max-width:62ch}
.bul{list-style:none;margin:0;padding:0}
.bul li{position:relative;padding:0 0 0 34px;margin:0 0 12px}
.bul li::before{content:"";position:absolute;left:0;top:.5em;width:20px;height:9px;border:1.5px solid var(--aq);border-radius:50%;box-shadow:0 0 0 3px rgba(69,224,210,.12)}
.acts{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.flow{padding-top:40px;padding-bottom:96px}
.flow>*+*{margin-top:84px}
.pan{width:min(100%,980px);padding:clamp(22px,4vw,48px)}
.pan-r{margin-left:auto}
.cd h3{font-size:1.12rem;line-height:1.25;margin:0 0 8px;font-weight:700;letter-spacing:0}
.cd p{margin:0;color:var(--mu);font-size:.98rem}
.g3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--ln);border:1px solid var(--ln);border-radius:18px;overflow:hidden}
.g3 .cd{padding:24px;background:rgba(6,24,27,.82)}
.g3 .cd h3::before{content:"";display:block;width:22px;height:10px;margin-bottom:14px;border:1.5px solid var(--aq);border-radius:50%}
.g2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.g2 .cd{padding:24px;border:1px solid var(--ln);border-radius:18px;background:rgba(6,24,27,.6)}
.g2 .cd:nth-child(even){transform:translateY(18px)}
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;counter-reset:st;position:relative}
.steps::before{content:"";position:absolute;left:0;right:0;top:22px;height:1px;background:linear-gradient(90deg,var(--ln2),var(--ln2) 80%,transparent)}
.steps .cd{position:relative;padding-top:64px}
.steps .cd::before{counter-increment:st;content:counter(st);position:absolute;left:0;top:0;display:grid;place-items:center;width:64px;height:44px;border-radius:50%;background:#0a2a2d;border:1px solid var(--aq);font:800 1.1rem/1 var(--fd);color:var(--aq2);box-shadow:0 0 0 7px rgba(69,224,210,.09)}

/* hero */
.hero{position:relative;overflow:hidden;padding:56px 0 30px}
.hero .wrap{position:relative;z-index:0}
.hero h1{font-size:clamp(2.15rem,5.4vw,4.3rem);letter-spacing:-.03em;margin-bottom:36px;text-shadow:0 2px 30px rgba(5,18,20,.8)}
.hero-g{display:grid;grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);gap:48px;align-items:start}
.hero-t .lead{margin-bottom:24px}
.hero-c{padding:20px}
.facts{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px;margin:76px 0 0}
.fact{display:flex;flex-direction:column-reverse;justify-content:flex-end;padding:18px 20px;border-radius:18px;min-width:0}
.fact dd{margin:0;white-space:nowrap;font:800 clamp(1.3rem,2vw,1.7rem)/1.05 var(--fd);color:#fff;letter-spacing:-.02em}
.fact dt{margin-top:8px;font-size:.86rem;line-height:1.35;color:var(--mu)}
.fact:first-child{border-color:rgba(69,224,210,.5)}
.fact:first-child dd{color:var(--aq2)}

/* code */
.codebox{min-width:0}
.codetabs{display:flex;gap:6px;margin:0 0 12px;padding:4px;border:1px solid var(--ln);border-radius:14px;background:rgba(2,10,12,.45);width:max-content;max-width:100%}
.codetabs button{min-height:44px;padding:0 18px;border:0;border-radius:10px;background:transparent;color:var(--mu);font:500 .86rem/1 var(--fm);cursor:pointer}
.codetabs button[aria-selected=true]{background:rgba(69,224,210,.16);color:#fff;box-shadow:inset 0 0 0 1px rgba(69,224,210,.45)}
pre.code{position:relative;margin:0 0 1.4em;border:1px solid var(--ln);border-radius:16px;background:var(--code);overflow:hidden;max-width:100%;box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
pre.code::before{content:"";display:block;height:50px;border-bottom:1px solid var(--ln);background:radial-gradient(circle at 22px 25px,transparent 3.5px,rgba(143,243,233,.75) 4px,rgba(143,243,233,.75) 5px,transparent 5.5px),radial-gradient(circle at 40px 25px,transparent 3.5px,rgba(143,243,233,.45) 4px,rgba(143,243,233,.45) 5px,transparent 5.5px),radial-gradient(circle at 58px 25px,transparent 3.5px,rgba(143,243,233,.25) 4px,rgba(143,243,233,.25) 5px,transparent 5.5px),rgba(190,255,248,.04)}
pre.code code{display:block;overflow-x:auto;padding:18px 20px 20px;font:400 .84rem/1.7 var(--fm);color:#d9efec;white-space:pre;tab-size:2}
pre.code .k{color:var(--aq)}pre.code .s{color:#bfe9ff}pre.code .c{color:#86a8a3;font-style:italic}
.copy{position:absolute;top:3px;right:6px;min-width:64px;height:44px;padding:0 14px;border:0;background:transparent;color:var(--aq2);font:500 .78rem/1 var(--fm);cursor:pointer;border-radius:10px}
.copy:hover{background:rgba(69,224,210,.14);color:#fff}
.codebox pre.code{margin:0}

/* prose */
.prose{min-width:0}
.prose.long{max-width:74ch}
.prose>*:first-child{margin-top:0}
.prose>*:last-child{margin-bottom:0}
.prose h2{font-size:clamp(1.4rem,2.3vw,1.85rem);margin:2em 0 .65em;padding-top:.2em}
.prose h2::before{content:"";display:block;width:34px;height:12px;margin-bottom:16px;border:1.5px solid var(--aq);border-radius:50%;box-shadow:0 0 0 5px rgba(69,224,210,.09)}
.prose h3{font-size:1.2rem;margin:1.7em 0 .5em;font-weight:700}
.prose p,.prose li{color:#d3e7e4}
.prose ul,.prose ol{padding-left:1.3em;margin:0 0 1.2em}
.prose li{margin-bottom:.45em}
.prose li::marker{color:var(--aq)}
.prose strong{color:#fff}
.prose :not(pre)>code{padding:.12em .42em;border:1px solid var(--ln);border-radius:7px;background:rgba(2,10,12,.5);color:var(--aq2);overflow-wrap:anywhere}
.prose table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:0 0 1.4em;border:1px solid var(--ln);border-radius:14px;background:rgba(2,10,12,.4);font-size:.94rem}
.prose th,.prose td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--ln);vertical-align:top;min-width:120px}
.prose th{font:700 .82rem/1.3 var(--ft);letter-spacing:.05em;text-transform:uppercase;color:var(--aq2);background:rgba(190,255,248,.05)}
.prose tr:last-child td{border-bottom:0}
.prose blockquote{margin:0 0 1.2em;padding:14px 20px;border-left:2px solid var(--aq);background:var(--gl);border-radius:0 14px 14px 0}

/* faq */
.faq-l details{border-top:1px solid var(--ln)}
.faq-l details:last-child{border-bottom:1px solid var(--ln)}
.faq-l summary{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:60px;padding:14px 0;cursor:pointer;list-style:none;font:700 1.06rem/1.35 var(--ft)}
.faq-l summary::-webkit-details-marker{display:none}
.faq-l summary::after{content:"";flex:none;width:30px;height:30px;border:1px solid var(--aq);border-radius:50%;background:linear-gradient(var(--aq2),var(--aq2)) center/12px 1.5px no-repeat,linear-gradient(var(--aq2),var(--aq2)) center/1.5px 12px no-repeat;transition:transform .2s}
.faq-l details[open] summary::after{transform:rotate(45deg);background-color:rgba(69,224,210,.16)}
.faq-l summary:hover{color:#fff}
.faq-l details p{margin:0;padding:0 46px 20px 0;color:var(--mu)}

/* cta band */
.band{overflow:visible;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:clamp(26px,5vw,56px);border-color:rgba(69,224,210,.4);background:linear-gradient(150deg,rgba(69,224,210,.2),rgba(190,255,248,.04) 55%,rgba(22,112,150,.18))}
.band .rip{top:50%;left:0;transform:translateY(-50%);width:100%;height:120%;opacity:.5;border-radius:24px}
.band>*{position:relative;z-index:1}
.band>.rip{position:absolute;z-index:0}
.band{isolation:isolate}
.band-t{min-width:0}
.band h2{font-size:clamp(1.5rem,3vw,2.3rem);margin-bottom:10px}
.band p{margin:0;color:#cfe6e3;max-width:56ch}
.band .btn{flex:none}

/* page heads */
.phead{padding:44px 0 8px}
.phead h1,.keyhero h1,.nf h1{font-size:clamp(2rem,4.6vw,3.6rem);letter-spacing:-.03em;margin-bottom:20px;max-width:20ch}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:0 0 22px;font:500 .78rem/1.3 var(--fm);color:var(--mu)}
.crumbs a{display:inline-flex;align-items:center;min-height:44px;color:var(--aq2);text-decoration:none}
.crumbs a:hover{text-decoration:underline}
.crumbs span{width:18px;height:8px;border:1.5px solid var(--ln2);border-radius:50%}
.crumbs b{font-weight:500;color:var(--mu);min-width:0}
.ep.big code{font-size:.86rem;padding:9px 16px}
.sub{margin:22px 0 0;color:var(--mu);font-size:.98rem}
.meta{margin:4px 0 0;font:500 .8rem/1.3 var(--fm);color:var(--mu)}

/* key page */
.keyhero{position:relative;overflow:hidden;padding:44px 0 70px}
.key-g{position:relative;z-index:0;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,470px);grid-template-areas:"t f" "b f";column-gap:64px;row-gap:28px;align-items:start}
.key-t{grid-area:t}.key-f{grid-area:f}.key-b{grid-area:b}
.rip-k{top:40px;left:72%;opacity:.5}
.key-b{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 28px}
.key-b li{position:relative;padding-top:24px;border-top:1px solid var(--ln2)}
.key-b li::before{content:"";position:absolute;left:0;top:-6px;width:24px;height:11px;border:1.5px solid var(--aq);border-radius:50%;background:var(--bg2)}
.key-b h2{font:700 1.06rem/1.3 var(--ft);letter-spacing:0;margin-bottom:6px}
.key-b p{margin:0;color:var(--mu);font-size:.95rem}
.form{padding:26px;border-color:rgba(69,224,210,.45);background:linear-gradient(160deg,rgba(69,224,210,.16),rgba(190,255,248,.05) 50%,rgba(22,112,150,.12));box-shadow:inset 0 1px 0 rgba(255,255,255,.22),0 0 0 8px rgba(69,224,210,.05),0 0 90px -20px rgba(69,224,210,.45),0 40px 80px -40px #000}
.tabs2{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;margin-bottom:20px;border:1px solid var(--ln);border-radius:14px;background:rgba(2,10,12,.5)}
.tabs2 button{min-height:46px;border:0;border-radius:10px;background:transparent;color:var(--mu);font:700 .95rem/1.1 var(--ft);cursor:pointer}
.tabs2 button[aria-selected=true]{background:rgba(69,224,210,.18);color:#fff;box-shadow:inset 0 0 0 1px rgba(69,224,210,.5)}
.msg{margin:0 0 16px;padding:12px 14px;border:1px solid rgba(69,224,210,.4);border-radius:12px;background:rgba(69,224,210,.1);font-size:.94rem;color:var(--tx)}
.msg:empty{display:none}
.msg.err{border-color:rgba(255,138,120,.6);background:rgba(255,90,70,.14);color:#ffd5cd}
.row{margin-bottom:16px}
.row label,.calc label{display:block;margin-bottom:7px;font:700 .86rem/1.3 var(--ft);color:#cfe6e3}
.row input,.calc input{width:100%;height:52px;padding:0 16px;border:1px solid var(--ln2);border-radius:13px;background:rgba(2,10,12,.6);color:#fff;font:400 1rem var(--ft);box-shadow:inset 0 2px 8px rgba(0,0,0,.4)}
.calc input{font-family:var(--fm)}
.row input:focus,.calc input:focus{outline:none;border-color:var(--aq);box-shadow:0 0 0 4px rgba(69,224,210,.22),inset 0 2px 8px rgba(0,0,0,.4)}
.note{margin:8px 0 0;font-size:.84rem;line-height:1.5;color:var(--mu)}
.form form .btn{width:100%;min-height:54px;font-size:1.05rem;margin-top:4px}
.form form>.note{margin-top:14px;text-align:center}
.keyout{display:none}
.keyout.on{display:block}
.keyout h3{font-size:1.3rem;margin-bottom:14px}
.keybox{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:12px 12px 12px 16px;border:1px dashed rgba(69,224,210,.6);border-radius:14px;background:rgba(2,10,12,.6)}
.keybox span{flex:1 1 180px;min-width:0;font:500 .9rem/1.5 var(--fm);color:var(--aq2);overflow-wrap:anywhere}
.keyout>p{margin:14px 0 0;font-size:.94rem;line-height:1.9}
.keyout>p.note{line-height:1.5;margin-top:8px}
.keyout code{color:var(--aq2);overflow-wrap:anywhere}
.mut{color:var(--mu)}
.form .acts{margin-top:18px;gap:8px}

/* docs + article */
.docs-g,.art-g{display:grid;gap:44px;align-items:start;padding-top:30px}
.docs-g{grid-template-columns:280px minmax(0,1fr)}
.art-g{grid-template-columns:minmax(0,1fr) 300px}
.art-g .rail{order:2}
.rail{position:sticky;top:calc(var(--bar) + 20px);display:grid;gap:18px;min-width:0}
.docs-m,.art-m{min-width:0;display:grid;gap:60px}
.docs-m>*,.art-m>*{min-width:0}
.sheet{padding:clamp(20px,4.4vw,52px)}
.toc{padding:20px 20px 14px;border-radius:20px}
.toc ol{list-style:none;margin:0;padding:0;counter-reset:tc;border-left:1px solid var(--ln2)}
.toc a{position:relative;display:flex;align-items:center;min-height:44px;padding:6px 0 6px 18px;color:var(--mu);font-size:.92rem;line-height:1.35;text-decoration:none}
.toc a::before{content:"";position:absolute;left:-6px;top:50%;width:11px;height:6px;margin-top:-3px;border:1px solid var(--ln2);border-radius:50%;background:var(--bg2)}
.toc a:hover{color:#fff}
.toc a:hover::before{border-color:var(--aq);box-shadow:0 0 0 3px rgba(69,224,210,.2)}
.side{padding:22px;border-radius:20px;border-color:rgba(69,224,210,.35)}
.side-h{font-size:1.2rem;margin-bottom:8px}
.side p{color:var(--mu);font-size:.94rem;margin-bottom:16px}
.side .btn{width:100%}
.tk{padding:clamp(20px,3.4vw,36px);border-color:rgba(69,224,210,.35)}
.tk .sh{margin-bottom:20px}
.tk .bul li:last-child{margin-bottom:0}
.art-h h1{max-width:24ch}
.docs-m .faq,.art-m .faq{width:100%;padding:clamp(20px,4vw,44px)}
.legal{margin:0 auto 0 0;width:min(100%,900px)}

/* pricing */
.facts-p{margin-top:34px}
.price-g{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:44px;align-items:start}
.calcp{padding:clamp(22px,4vw,44px);border-color:rgba(69,224,210,.4)}
.calc{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-bottom:24px}
.calc>div{min-width:0}
.calc>div:last-child{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 20px;padding:20px 24px;border:1px solid rgba(69,224,210,.4);border-radius:18px;background:radial-gradient(120% 160% at 100% 50%,rgba(69,224,210,.22),transparent 60%),rgba(2,10,12,.55)}
.calc>div:last-child label{margin:0;font-size:.95rem}
.calc output{font:800 clamp(2.1rem,5vw,3.1rem)/1 var(--fd);color:var(--aq2);letter-spacing:-.02em;text-shadow:0 0 34px rgba(69,224,210,.5)}
.exs{padding-top:14px;min-width:0}
.exl{display:grid;gap:14px}
.exl .cd{padding:20px 22px;border:1px solid var(--ln);border-radius:18px;background:rgba(6,24,27,.55);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}
.exl .cd:nth-child(2){margin-left:22px}
.exl .cd:nth-child(3){margin-left:44px}

/* 404 */
.nf{position:relative;overflow:hidden;padding:70px 0 110px}
.nf .wrap{position:relative;z-index:0}
.nf .rip{left:50%}
.nf-b{max-width:640px;margin:0 auto;padding:clamp(26px,5vw,54px);text-align:center}
.nf-n{margin:0 0 6px;font:800 clamp(4rem,14vw,7rem)/1 var(--fd);color:transparent;-webkit-text-stroke:1.5px var(--aq);letter-spacing:-.04em}
.nf-b h1,.nf-b .lead{margin-left:auto;margin-right:auto}
.nf-l{list-style:none;display:flex;flex-wrap:wrap;justify-content:center;gap:6px 10px;margin:22px 0 26px;padding:0}
.nf-l a{display:inline-flex;align-items:center;min-height:44px;padding:0 14px;border:1px solid var(--ln);border-radius:12px;text-decoration:none}

/* footer */
.ft{padding:0 0 44px}
.ft-in{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:28px 56px;padding:clamp(22px,4vw,44px)}
.ft-b p{margin:10px 0 18px;color:var(--mu);max-width:36ch}
.ft-l{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px;align-content:start}
.ft-l a{display:flex;align-items:center;min-height:44px;color:var(--tx);text-decoration:none;border-bottom:1px solid var(--ln);font-size:.96rem}
.ft-l a:hover{color:var(--aq2)}
.ft-n{grid-column:1/-1;margin:0;padding-top:20px;border-top:1px solid var(--ln);font-size:.84rem;line-height:1.6;color:var(--mu)}

@media (max-width:1040px){
.hero-g{grid-template-columns:minmax(0,1fr);gap:34px}
.hero-c{margin-top:0}
.hero h1{max-width:none}
.facts{grid-template-columns:repeat(3,minmax(0,1fr))}
.fact:first-child{grid-column:span 2}
.fact:nth-child(2){grid-column:span 1}
.price-g{grid-template-columns:minmax(0,1fr)}
.key-g{grid-template-columns:minmax(0,1fr);grid-template-areas:"t" "f" "b";row-gap:30px}
.key-f{max-width:560px;width:100%}
.keyhero{padding-bottom:60px}
.rip-k{left:50%}
.docs-g,.art-g{grid-template-columns:minmax(0,1fr);gap:28px}
.rail{display:contents}
.toc{order:0}.docs-m,.art-m{order:1}.side{order:2}
}
@media (max-width:860px){
:root{--th:78px}
.wrap{padding:0 16px}
body{font-size:16.5px}
.hd-meta{display:none}
.wm{font-size:4.4vw}.hd-top-in{padding-bottom:2.2vw}
.nav{display:none;position:absolute;top:calc(100% + 8px);left:12px;right:12px;flex-direction:column;gap:2px;margin:0;padding:10px;border:1px solid var(--ln2);border-radius:18px;background:rgba(6,26,29,.97);box-shadow:0 30px 60px -20px #000}
.nav.open{display:flex}
.nav a{min-height:50px;font-size:1.02rem}
.burger{display:flex}
.hd .cta{margin-left:auto;padding:0 16px}
.g3{grid-template-columns:minmax(0,1fr)}
.g2{grid-template-columns:minmax(0,1fr)}
.g2 .cd:nth-child(even){transform:none}
.steps{grid-template-columns:minmax(0,1fr);gap:26px}
.steps::before{left:32px;right:auto;top:0;bottom:0;width:1px;height:auto;background:var(--ln2)}
.steps .cd{padding:2px 0 0 84px;min-height:48px}
.band{flex-direction:column;align-items:flex-start}
.band .btn{width:100%}
.flow>*+*{margin-top:64px}
.flow{padding-bottom:76px}
.hero{padding-top:36px}
.phead,.keyhero{padding-top:28px}
.ft-in{grid-template-columns:minmax(0,1fr)}
.exl .cd:nth-child(n){margin-left:0}
.faq-l details p{padding-right:0}
.rip{width:900px;height:306px}
}
@media (max-width:560px){
.facts{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:60px}
.fact:first-child{grid-column:1/-1}
.fact{padding:16px}
.calc{grid-template-columns:minmax(0,1fr)}
.key-b{grid-template-columns:minmax(0,1fr)}
.form{padding:20px 16px}
.hero-c{padding:12px}
.acts .btn.big{width:100%}
.codetabs button{padding:0 14px}
.ft-l{grid-template-columns:minmax(0,1fr)}
.sh{gap:14px}
.sh::before{width:52px;height:26px}
pre.code code{font-size:.78rem;padding:16px}
.keyhero h1{margin-bottom:14px}
}
@media (prefers-reduced-motion:reduce){
*,*::before,*::after{animation:none!important;transition:none!important}
html{scroll-behavior:auto}
}