:root{--bg:#15102e;--bg2:#1e1743;--bg3:#271e55;--plate:#0d0922;--line:rgba(190,175,255,.18);--tx:#ece8ff;--mut:#c2bae6;--ink:#17112f;--ink2:#3b3162;--lav:#b9abff;--lav2:#ddd5ff;--peach:#ffd5c0;--butter:#ffeab0;--mint:#c5efdc;--sky:#c6ddff;--rose:#ffc9dd;--dawn:linear-gradient(100deg,#b9abff 0%,#f3b6e0 55%,#ffcfae 100%);--disp:"M PLUS Rounded 1c","Quicksand",ui-rounded,system-ui,sans-serif;--text:"Quicksand",ui-rounded,system-ui,-apple-system,"Segoe UI",sans-serif;--mono:"Geist Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;--rail:320px;--gap:44px}
*,*::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(--tx);font:500 17px/1.65 var(--text);overflow-x:hidden;
background-image:radial-gradient(900px 620px at 8% -8%,rgba(125,98,255,.30),transparent 62%),radial-gradient(760px 560px at 104% 14%,rgba(255,160,190,.14),transparent 60%),radial-gradient(900px 700px at 50% 108%,rgba(110,90,230,.18),transparent 60%);background-attachment:fixed}
h1,h2,h3{font-family:var(--disp);font-weight:800;line-height:1.14;margin:0;letter-spacing:-.01em;overflow-wrap:anywhere}
p{margin:0 0 1em}
a{color:var(--lav2)}
img,svg{max-width:100%}
code{font-family:var(--mono);font-size:.9em}
:focus-visible{outline:3px solid var(--butter);outline-offset:3px;border-radius:10px}
.skip{position:absolute;left:16px;top:-80px;z-index:100;background:var(--butter);color:var(--ink);padding:12px 20px;border-radius:999px;font-weight:700}
.skip:focus{top:12px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 12px 0 26px;border:0;border-radius:999px;background:var(--dawn);color:var(--ink);font:700 1rem/1.2 var(--text);text-decoration:none;cursor:pointer;box-shadow:0 10px 28px -10px rgba(185,171,255,.75),inset 0 -3px 0 rgba(23,17,47,.12);transition:transform .18s,box-shadow .18s}
.btn:hover{transform:translateY(-2px);box-shadow:0 16px 34px -10px rgba(243,182,224,.8),inset 0 -3px 0 rgba(23,17,47,.12)}
.btn:active{transform:translateY(1px)}
.btn>i{flex:none;width:32px;height:32px;border-radius:50%;background:var(--ink);position:relative}
.btn>i::after{content:"";position:absolute;left:14px;top:9px;width:4px;height:14px;border-radius:2px;background:var(--butter)}
.btn.ghost{background:rgba(190,175,255,.10);color:var(--tx);box-shadow:inset 0 0 0 2px var(--line)}
.btn.ghost>i{background:rgba(190,175,255,.22)}
.btn.ghost>i::after{background:var(--lav2)}
.btn.ink{background:var(--ink);color:#fff;box-shadow:0 12px 26px -12px rgba(23,17,47,.8)}
.btn.ink>i{background:var(--butter)}
.btn.ink>i::after{background:var(--ink)}
.btn.wide{width:100%;justify-content:space-between}

/* header */
.hd{position:sticky;top:0;z-index:50;background:rgba(21,16,46,.82);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.hd-in{max-width:1280px;margin:0 auto;padding:12px 24px;display:grid;grid-template-columns:var(--rail) minmax(0,1fr) auto;gap:var(--gap);align-items:center;position:relative}
.logo{display:inline-flex;align-items:center;gap:10px;min-height:44px;color:var(--tx);text-decoration:none;min-width:0}
.logo b{font:800 1.22rem/1 var(--disp);letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.logo b span{color:var(--lav)}
.mark{flex:none}
.nav{display:flex;gap:4px;padding:5px;border-radius:999px;background:rgba(190,175,255,.09);box-shadow:inset 0 0 0 1px var(--line);justify-self:start;max-width:100%}
.nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 20px;border-radius:999px;color:var(--mut);text-decoration:none;font-weight:700;font-size:.97rem;white-space:nowrap;transition:background .15s,color .15s}
.nav a:hover{color:#fff;background:rgba(190,175,255,.14)}
.nav a[aria-current]{background:var(--lav2);color:var(--ink)}
.key-top{min-height:48px}
.burger{display:none;width:48px;height:48px;border-radius:50%;border:0;background:rgba(190,175,255,.14);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:0}
.burger span{display:block;width:20px;height:3px;border-radius:2px;background:var(--tx);transition:transform .2s}
.burger[aria-expanded=true] span:first-child{transform:translateY(4.5px) rotate(45deg)}
.burger[aria-expanded=true] span:last-child{transform:translateY(-4.5px) rotate(-45deg)}

/* shell */
.shell{max-width:1280px;margin:0 auto;padding:36px 24px 72px;display:grid;grid-template-columns:var(--rail) minmax(0,1fr);grid-template-rows:auto 1fr;grid-template-areas:"rail top" "rail body";column-gap:var(--gap);row-gap:0}
.shell.pg-key{--rail:420px}
.shell.solo{display:block;max-width:900px}
.top{grid-area:top;min-width:0}
.body{grid-area:body;min-width:0}
.rail{grid-area:rail;min-width:0;align-self:start;position:sticky;top:92px;max-height:calc(100vh - 108px);overflow-y:auto;scrollbar-width:thin;scrollbar-color:var(--bg3) transparent;border-radius:36px}
.rail-form{max-height:none;overflow:visible;border-radius:0}

/* rail capsule */
.cap{background:linear-gradient(180deg,#2c2168 0%,#221a52 46%,#1e1743 100%);border-radius:36px;padding:26px 22px 22px;box-shadow:inset 0 0 0 1px var(--line),0 30px 60px -40px #000;position:relative;overflow:hidden}
.cap::before{content:"";position:absolute;right:-34px;top:-34px;width:120px;height:120px;border-radius:50%;background:radial-gradient(circle at 35% 35%,#fff7df,#ffd9b8 55%,#f3b6e0);opacity:.9;box-shadow:0 0 60px 10px rgba(255,210,180,.25)}
.cap>*{position:relative}
.rl-h{font:800 1.3rem/1.2 var(--disp);margin:0 0 8px;padding-right:74px;color:#fff}
.rl-p{color:var(--mut);font-size:.95rem;line-height:1.5;margin:0 0 18px;padding-right:64px}
.rl-k{font:700 .78rem/1 var(--text);letter-spacing:.12em;text-transform:uppercase;color:var(--lav);margin:0 0 10px;padding-right:80px}
.rl-facts{margin:18px 0 0;display:grid;gap:8px}
.rl-facts div{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 16px;border-radius:999px;background:rgba(190,175,255,.10)}
.rl-facts dt{font-size:.84rem;color:var(--mut);line-height:1.25;min-width:0}
.rl-facts dd{margin:0;font:800 1.02rem/1 var(--disp);color:var(--butter);white-space:nowrap}
.rl-facts div:nth-child(2) dd{color:var(--rose)}.rl-facts div:nth-child(3) dd{color:var(--mint)}.rl-facts div:nth-child(4) dd{color:var(--sky)}.rl-facts div:nth-child(5) dd{color:var(--lav2)}
.rl-facts.on-dark{margin-top:20px}
.rl-ep{margin-top:16px;padding:14px 16px;border-radius:22px;background:var(--plate);display:grid;gap:6px}
.rl-ep code{display:block;font-size:.8rem;color:var(--lav2);overflow-wrap:anywhere;padding-left:14px;position:relative}
.rl-ep code::before{content:"";position:absolute;left:0;top:.2em;width:4px;height:1em;border-radius:2px;background:var(--lav)}
.rl-ep code+code{color:var(--butter)}.rl-ep code+code::before{background:var(--butter)}
.toc{margin-bottom:18px}
.toc ol{list-style:none;margin:0;padding:0;counter-reset:t}
.toc li{counter-increment:t}.toc li:first-child a{padding-right:70px}
.toc a{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;border-radius:16px;color:var(--tx);text-decoration:none;font-size:.93rem;line-height:1.35;font-weight:600}
.toc a::before{content:counter(t);flex:none;width:26px;height:20px;border-radius:7px;background:rgba(190,175,255,.2);color:var(--lav2);font:700 .72rem/20px var(--mono);text-align:center}
.toc a:hover{background:rgba(190,175,255,.14)}

/* top / hero */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:.9rem;font-weight:700;color:var(--mut);margin-bottom:18px}
.crumbs a{color:var(--lav2);text-decoration:none;display:inline-flex;align-items:center;min-height:44px;padding:0 16px;border-radius:999px;background:rgba(190,175,255,.12)}
.crumbs a:hover{background:rgba(190,175,255,.22)}
.crumbs i{width:4px;height:16px;border-radius:2px;background:var(--lav)}
.crumbs span{min-width:0;overflow-wrap:anywhere}
.top h1{font-size:clamp(2rem,3.7vw,3.25rem)}
.lead{font-size:1.16rem;line-height:1.6;color:var(--mut);margin:18px 0 0;max-width:62ch}
.meta{display:inline-flex;align-items:center;gap:10px;margin:22px 0 0;padding:8px 16px;border-radius:999px;background:rgba(190,175,255,.12);font-size:.9rem;font-weight:700;color:var(--lav2)}
.meta i{width:10px;height:10px;border-radius:50%;background:var(--butter)}
.sky{position:relative;overflow:hidden;border-radius:40px;padding:48px 48px 44px;
background:radial-gradient(1px 1px at 12% 18%,#fff 99%,transparent),radial-gradient(1.5px 1.5px at 31% 9%,#fff 99%,transparent),radial-gradient(1px 1px at 47% 24%,#ffffffb0 99%,transparent),radial-gradient(1.5px 1.5px at 63% 12%,#fff 99%,transparent),radial-gradient(1px 1px at 22% 38%,#ffffff90 99%,transparent),radial-gradient(1px 1px at 72% 34%,#ffffffa0 99%,transparent),radial-gradient(1.5px 1.5px at 6% 52%,#ffffff80 99%,transparent),radial-gradient(120% 70% at 78% 118%,rgba(255,200,165,.62),transparent 58%),radial-gradient(90% 60% at 30% 125%,rgba(243,150,210,.5),transparent 62%),linear-gradient(180deg,#201850 0%,#2f2377 55%,#56399f 100%);
box-shadow:inset 0 0 0 1px rgba(210,198,255,.22),0 40px 80px -50px #000}
.sky::before{content:"";position:absolute;right:-56px;top:-56px;width:210px;height:210px;border-radius:50%;background:radial-gradient(circle at 34% 36%,#fffaf0 0,#ffe6c2 46%,#f7bfdc 100%);box-shadow:0 0 90px 20px rgba(255,214,190,.3)}
.sky::after{content:"";position:absolute;right:28px;top:54px;width:26px;height:26px;border-radius:50%;background:rgba(170,130,200,.28);box-shadow:44px -22px 0 -5px rgba(170,130,200,.24),18px 44px 0 -7px rgba(170,130,200,.22)}
.sky>*{position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:10px;margin:0 0 20px;padding:8px 18px 8px 12px;border-radius:999px;background:rgba(21,16,46,.5);color:var(--butter);font-weight:700;font-size:.9rem;max-width:calc(100% - 130px)}
.eyebrow::before{content:"";flex:none;width:4px;height:16px;border-radius:2px;background:var(--butter)}
.hero h1{max-width:17ch;font-size:clamp(2.1rem,4vw,3.5rem);color:#fff;padding-right:40px}
.hero .lead{color:#e4defb;max-width:58ch}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.bul{list-style:none;margin:28px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.bul li{display:flex;align-items:center;gap:10px;padding:9px 18px 9px 12px;border-radius:999px;background:rgba(21,16,46,.46);box-shadow:inset 0 0 0 1px rgba(210,198,255,.2);font-size:.93rem;font-weight:600;line-height:1.35;color:#f3effF}
.bul li::before{content:"";flex:none;width:18px;height:18px;border-radius:50%;background:var(--mint);box-shadow:inset 0 0 0 5px var(--ink)}
.bul li:nth-child(2)::before{background:var(--butter)}.bul li:nth-child(3)::before{background:var(--rose)}

/* signature: prompt to frames */
.p2f{display:flex;align-items:center;gap:0;margin:26px 0 0;padding:0 6px}
.prompt{flex:1 1 0;min-width:0;display:flex;align-items:center;gap:12px;min-height:64px;padding:10px 24px 10px 14px;border-radius:999px;background:#f4f0ff;color:var(--ink);font:500 .95rem/1.3 var(--mono);box-shadow:0 18px 40px -22px #000,inset 0 -4px 0 rgba(23,17,47,.08)}
.prompt span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pr-dot{flex:none;width:40px;height:40px;border-radius:50%;background:var(--dawn);position:relative}
.pr-dot::after{content:"";position:absolute;inset:11px;border-radius:50%;background:var(--ink);box-shadow:inset -5px 4px 0 0 #f4f0ff}
.caret{flex:none;display:inline-block;width:4px;height:1.25em;border-radius:2px;background:#6a4de0;animation:blink 1.15s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.thread{flex:none;width:64px;height:0;border-top:4px dotted var(--lav);position:relative;margin:0 6px}
.thread::after{content:"";position:absolute;right:-4px;top:-9px;width:14px;height:14px;border-radius:50%;background:var(--lav)}
.frames{flex:none;display:flex;align-items:center;padding:8px 6px}
.f{display:block;width:118px;aspect-ratio:16/10;border-radius:18px;border:3px solid #f4f0ff;position:relative;overflow:hidden;box-shadow:0 16px 30px -16px #000}
.f::before{content:"";position:absolute;border-radius:50%}
.f::after{content:"";position:absolute;left:-20%;right:-20%;bottom:-62%;height:90%;border-radius:50%;background:#1b1447}
.f1{background:linear-gradient(180deg,#6f5bd6 0%,#e59ad0 58%,#ffd1a6 100%);transform:rotate(-5deg)}
.f1::before{width:30px;height:30px;left:50%;bottom:8px;margin-left:-15px;background:#fff3d0;box-shadow:0 0 18px 4px rgba(255,235,190,.7)}
.f2{background:linear-gradient(180deg,#34288a 0%,#8f79e6 72%,#f0b3dc 100%);margin-left:-26px;transform:rotate(2deg) translateY(-8px);z-index:1}
.f2::before{width:22px;height:22px;right:26%;top:30%;background:#fff6dd;box-shadow:0 0 14px 3px rgba(255,246,221,.5)}
.f3{background:radial-gradient(1.5px 1.5px at 22% 30%,#fff 99%,transparent),radial-gradient(1px 1px at 48% 18%,#fff 99%,transparent),radial-gradient(1.5px 1.5px at 38% 52%,#ffffffb0 99%,transparent),radial-gradient(1px 1px at 12% 60%,#fff 99%,transparent),linear-gradient(180deg,#150f3a,#3b2d86);margin-left:-26px;transform:rotate(6deg);z-index:2}
.f3::before{width:22px;height:22px;right:16%;top:14%;background:transparent;box-shadow:inset -6px 3px 0 0 #fff6dd}
.try{margin-top:26px}
.try-l{display:flex;align-items:center;gap:10px;font:700 .8rem/1 var(--text);letter-spacing:.12em;text-transform:uppercase;color:var(--lav);margin:0 0 12px 22px}
.try-l .caret{background:var(--lav);height:14px}

/* code */
.codebox{background:var(--plate);border-radius:30px;box-shadow:inset 0 0 0 1px var(--line),0 30px 60px -40px #000;overflow:hidden;min-width:0}
.codetabs{display:flex;gap:6px;padding:12px 12px 0;overflow-x:auto}
.codetabs button{min-height:44px;padding:0 20px;border:0;border-radius:999px;background:transparent;color:var(--mut);font:700 .9rem/1 var(--text);cursor:pointer;white-space:nowrap}
.codetabs button:hover{background:rgba(190,175,255,.12);color:#fff}
.codetabs button[aria-selected=true]{background:var(--lav2);color:var(--ink)}
pre.code{position:relative;margin:1.4em 0;padding:60px 22px 22px;background:var(--plate);color:#e9e4ff;border-radius:24px;box-shadow:inset 0 0 0 1px var(--line);font:400 .86rem/1.7 var(--mono);overflow-x:auto;max-width:100%;-webkit-overflow-scrolling:touch;tab-size:2}
pre.code code{font-size:inherit;white-space:pre}
.codebox pre.code{margin:0;border-radius:0;box-shadow:none;padding-top:58px}
.copy{position:absolute;top:8px;right:10px;min-height:44px;min-width:44px;padding:0 18px;border:0;border-radius:999px;background:rgba(190,175,255,.16);color:var(--lav2);font:700 .8rem/1 var(--text);cursor:pointer}
.copy:hover{background:var(--lav2);color:var(--ink)}
.code .k{color:#c4b8ff}.code .s{color:#ffd9a8}.code .c{color:#9a92c4}

/* sections */
.sec{margin-top:64px}
.sh{display:flex;align-items:center;gap:16px;margin-bottom:26px}
.sh h2{font-size:clamp(1.55rem,2.5vw,2.1rem);min-width:0}
.fr{flex:none;position:relative;display:inline-flex;align-items:center;justify-content:flex-start;width:64px;height:42px;padding-left:12px;border-radius:14px;background:var(--dawn);color:var(--ink);font:700 .9rem/1 var(--mono);box-shadow:0 0 0 3px rgba(244,240,255,.9),0 12px 22px -12px #000;transform:rotate(-4deg)}
.fr::after{content:"";position:absolute;right:13px;top:11px;width:4px;height:20px;border-radius:2px;background:var(--ink)}
.tiles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.tile{border-radius:30px;padding:28px 28px 24px;color:var(--ink);min-width:0;position:relative;overflow:hidden}
.tile::after{content:"";position:absolute;right:-26px;top:-26px;width:84px;height:84px;border-radius:50%;background:rgba(255,255,255,.5)}
.tile h3{font-size:1.24rem;margin-bottom:10px;padding-right:44px;position:relative;z-index:1}
.tile p{margin:0;color:var(--ink2);font-weight:600;font-size:.98rem;line-height:1.55;position:relative;z-index:1}
.t-lav{background:var(--lav2)}.t-peach{background:var(--peach)}.t-butter{background:var(--butter)}.t-mint{background:var(--mint)}.t-sky{background:var(--sky)}.t-rose{background:var(--rose)}
.seq{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;position:relative}
.seq::before{content:"";position:absolute;left:40px;right:40px;top:52px;border-top:4px dotted rgba(185,171,255,.55)}
.seq li{position:relative;min-width:0;background:var(--bg2);border-radius:30px;padding:24px 24px 22px;box-shadow:inset 0 0 0 1px var(--line)}
.seq-n{display:flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:50%;background:var(--butter);color:var(--ink);font:800 1.5rem/1 var(--disp);margin-bottom:18px;box-shadow:0 0 0 7px var(--bg2)}
.seq li:nth-child(2) .seq-n{background:var(--rose)}.seq li:nth-child(3) .seq-n{background:var(--mint)}
.seq h3{font-size:1.14rem;margin-bottom:8px;color:#fff}
.seq p{margin:0;color:var(--mut);font-size:.96rem;line-height:1.55}
.glasses{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.glass{min-width:0;background:var(--bg2);border-radius:30px;padding:26px 26px 22px 30px;box-shadow:inset 0 0 0 1px var(--line);position:relative;overflow:hidden}
.glass::before{content:"";position:absolute;left:0;top:26px;bottom:26px;width:6px;border-radius:0 6px 6px 0;background:var(--lav)}
.g-peach::before{background:var(--peach)}.g-butter::before{background:var(--butter)}.g-mint::before{background:var(--mint)}.g-sky::before{background:var(--sky)}.g-rose::before{background:var(--rose)}
.glass h3{font-size:1.16rem;margin-bottom:8px;color:#fff}
.glass p{margin:0;color:var(--mut);font-size:.97rem;line-height:1.58}

/* prose */
.sheet{background:var(--bg2);border-radius:36px;padding:44px 48px;box-shadow:inset 0 0 0 1px var(--line)}
.prose{min-width:0}
.prose>*{max-width:70ch}
.prose>pre,.prose>table{max-width:100%}
.prose>:first-child{margin-top:0}.prose>:last-child{margin-bottom:0}
.prose h2{font-size:clamp(1.4rem,2.2vw,1.8rem);margin:2em 0 .7em;padding-left:20px;position:relative;color:#fff;scroll-margin-top:96px}
.prose h2::before{content:"";position:absolute;left:0;top:.12em;width:6px;height:1em;border-radius:3px;background:var(--dawn)}
.prose h3{font-size:1.18rem;margin:1.7em 0 .5em;color:var(--lav2)}
.prose p,.prose li{color:#ddd7f7}
.prose strong{color:#fff;font-weight:700}
.prose a{color:var(--butter);text-underline-offset:3px}
.prose ul,.prose ol{margin:0 0 1.2em;padding:0;list-style:none}
.prose li{position:relative;padding-left:28px;margin-bottom:.55em}
.prose ul>li::before{content:"";position:absolute;left:8px;top:.38em;width:4px;height:.95em;border-radius:2px;background:var(--lav)}
.prose ol{counter-reset:o}
.prose ol>li{counter-increment:o;padding-left:40px}
.prose ol>li::before{content:counter(o);position:absolute;left:0;top:.12em;width:28px;height:24px;border-radius:9px;background:rgba(190,175,255,.2);color:var(--lav2);font:700 .78rem/24px var(--mono);text-align:center}
.prose :not(pre)>code{background:rgba(190,175,255,.16);color:var(--lav2);padding:.12em .5em;border-radius:8px;overflow-wrap:anywhere}
.prose table{display:block;overflow-x:auto;max-width:100%;border-collapse:separate;border-spacing:0;margin:1.5em 0;font-size:.95rem;-webkit-overflow-scrolling:touch}
.prose th,.prose td{padding:12px 18px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line);min-width:120px}
.prose th{background:var(--lav2);color:var(--ink);font-weight:700;border-bottom:0}
.prose th:first-child{border-radius:16px 0 0 16px}.prose th:last-child{border-radius:0 16px 16px 0}
.prose td{color:#ddd7f7}
.prose blockquote{margin:1.4em 0;padding:16px 22px;border-radius:22px;background:rgba(190,175,255,.1)}

/* takeaways */
.take{margin-top:36px;background:var(--butter);color:var(--ink);border-radius:36px;padding:34px 38px;position:relative;overflow:hidden}
.take::after{content:"";position:absolute;right:-40px;top:-40px;width:130px;height:130px;border-radius:50%;background:rgba(255,255,255,.55)}
.take h2{font-size:1.4rem;margin-bottom:16px;position:relative;z-index:1}
.take ul{list-style:none;margin:0;padding:0;display:grid;gap:12px;position:relative;z-index:1}
.take li{position:relative;padding-left:34px;font-weight:600;color:#2a2148;line-height:1.5}
.take li::before{content:"";position:absolute;left:0;top:.2em;width:20px;height:20px;border-radius:50%;background:var(--ink);box-shadow:inset 0 0 0 6px var(--ink),inset 0 0 0 20px var(--butter)}
.take+.sheet,.facts+.sec{margin-top:28px}

/* faq */
.faq{display:grid;gap:12px}
.faq details{background:var(--bg2);border-radius:26px;box-shadow:inset 0 0 0 1px var(--line);transition:background .2s}
.faq details[open]{background:var(--bg3);box-shadow:inset 0 0 0 2px rgba(185,171,255,.5)}
.faq summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;padding:14px 16px 14px 26px;cursor:pointer;font:700 1.06rem/1.35 var(--disp);color:#fff;border-radius:26px}
.faq summary::-webkit-details-marker{display:none}
.faq summary span{min-width:0}
.faq summary i{flex:none;width:36px;height:36px;border-radius:50%;background:var(--lav2);position:relative;transition:transform .2s}
.faq summary i::before,.faq summary i::after{content:"";position:absolute;left:50%;top:50%;width:14px;height:4px;margin:-2px 0 0 -7px;border-radius:2px;background:var(--ink)}
.faq summary i::after{transform:rotate(90deg)}
.faq details[open] summary i{transform:rotate(45deg);background:var(--butter)}
.faq details p{margin:0;padding:0 26px 22px;color:#ddd7f7;max-width:72ch}

/* closing band */
.band{margin-top:64px;border-radius:40px;padding:44px 48px;background:var(--dawn);color:var(--ink);display:flex;align-items:center;justify-content:space-between;gap:28px;position:relative;overflow:hidden}
.band::before{content:"";position:absolute;left:-60px;bottom:-90px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.3)}
.band-t{position:relative;min-width:0}
.band h2{font-size:clamp(1.5rem,2.6vw,2.1rem);margin-bottom:10px}
.band p{color:#2a2148;font-weight:600;margin:0 0 22px;max-width:46ch}
.band-f{flex:none;position:relative}
.band .f{border-color:#fff}
.back{margin:44px 0 0}

/* pricing */
.facts{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:16px;margin-top:36px}
.fact{grid-column:span 2;min-width:0;border-radius:30px;padding:24px 24px 22px;color:var(--ink);display:flex;flex-direction:column;gap:8px;position:relative;overflow:hidden}
.fact:nth-child(-n+2){grid-column:span 3;padding:30px 30px 26px}
.fact::after{content:"";position:absolute;right:-24px;bottom:-24px;width:80px;height:80px;border-radius:50%;background:rgba(255,255,255,.5)}
.fact b{font:800 2.1rem/1 var(--disp);letter-spacing:-.02em;position:relative;z-index:1}
.fact:nth-child(-n+2) b{font-size:3.2rem}
.fact span{font-weight:700;font-size:.95rem;line-height:1.35;color:var(--ink2);position:relative;z-index:1}
.calc-wrap{background:#f4f0ff;border-radius:36px;padding:14px;color:var(--ink)}
.calc{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) minmax(0,1.05fr);gap:14px;align-items:stretch}
.calc>div{min-width:0;display:flex;flex-direction:column;justify-content:space-between;gap:12px;padding:20px 20px 18px;border-radius:26px;background:#fff}
.calc label{font-weight:700;font-size:.92rem;line-height:1.35;color:var(--ink2)}
.calc input{width:100%;min-width:0;min-height:54px;padding:0 20px;border:2px solid #cfc5ff;border-radius:999px;background:#faf8ff;color:var(--ink);font:500 1.05rem/1 var(--mono)}
.calc input:focus{outline:3px solid #6a4de0;outline-offset:2px;border-color:#6a4de0}
.calc>div:last-child{background:var(--ink);color:#fff}
.calc>div:last-child label{color:var(--lav2)}
.calc output{display:block;font:800 2.6rem/1.05 var(--disp);color:var(--butter);overflow-wrap:anywhere}
.ex{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.ex li{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,8fr);gap:24px;align-items:start;background:var(--bg2);border-radius:28px;padding:24px 28px;box-shadow:inset 0 0 0 1px var(--line)}
.ex h3{font-size:1.14rem;color:#fff;padding-left:18px;position:relative}
.ex h3::before{content:"";position:absolute;left:0;top:.1em;width:5px;height:1em;border-radius:3px;background:var(--butter)}
.ex li:nth-child(2) h3::before{background:var(--rose)}.ex li:nth-child(3) h3::before{background:var(--mint)}
.ex p{margin:0;color:var(--mut);font-size:.98rem}

/* signup form */
.form{background:#f4f0ff;color:var(--ink);border-radius:36px;padding:16px 16px 22px;box-shadow:0 0 0 6px rgba(185,171,255,.2),0 40px 80px -40px #000;position:relative;scroll-margin-top:100px}
.tabs2{display:flex;gap:4px;padding:5px;border-radius:999px;background:#e2dbff}
.tabs2 button{flex:1 1 0;min-width:0;min-height:48px;padding:0 10px;border:0;border-radius:999px;background:transparent;color:var(--ink2);font:700 .98rem/1.15 var(--text);cursor:pointer}
.tabs2 button[aria-selected=true]{background:var(--ink);color:#fff;box-shadow:0 8px 16px -8px rgba(23,17,47,.6)}
.form .msg{margin:14px 6px 0;padding:12px 18px;border-radius:18px;font-weight:700;font-size:.93rem;line-height:1.4}
.form .msg:empty{display:none}
.form .msg.err{background:#ffd9e0;color:#8a1030;box-shadow:inset 0 0 0 2px #f7a8b8}
.form form{padding:18px 8px 0}
.form .row{margin-bottom:16px}
.form label{display:block;font-weight:700;font-size:.92rem;margin:0 0 7px 14px;color:var(--ink)}
.form input{display:block;width:100%;min-height:56px;padding:0 22px;border:2px solid #cfc5ff;border-radius:999px;background:#fff;color:var(--ink);font:600 1.02rem/1 var(--text)}
.form input:focus{outline:3px solid #6a4de0;outline-offset:2px;border-color:#6a4de0}
.form .note{font-size:.86rem;line-height:1.45;color:#4a416f;font-weight:600;margin:8px 14px 0}
.form form>.btn{width:100%;min-height:60px;margin-top:6px;padding:0 24px;font-size:1.04rem;background:var(--ink);color:#fff;box-shadow:0 14px 26px -14px rgba(23,17,47,.9)}
.form form>.btn:hover{background:#2a1f63}
.form .btn:disabled{opacity:.6;cursor:wait;transform:none}
.form form>.note{text-align:center;margin-top:14px}
.keyout{display:none;padding:14px 8px 0}
.keyout.on{display:block}
.keyout h3{font-size:1.3rem;margin:4px 6px 14px}
.keybox{display:flex;align-items:center;gap:10px;padding:10px 10px 10px 20px;border-radius:24px;background:var(--ink)}
.keybox span{flex:1 1 0;min-width:0;font:500 .9rem/1.45 var(--mono);color:var(--butter);overflow-wrap:anywhere;word-break:break-all}
.keyout p{margin:14px 6px 0;font-size:.95rem;line-height:1.75;color:var(--ink)}
.keyout p code{background:#e2dbff;padding:.1em .5em;border-radius:8px;overflow-wrap:anywhere}
.keyout .mut{color:#4a416f}
.acts{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.btn.sm{min-height:46px;padding:0 20px;font-size:.92rem;box-shadow:none}
.form .btn.ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 2px #b8acf0}
.form .btn.ghost:hover{background:#e2dbff}
.keybox .btn.sm{flex:none;background:var(--lav2)}

/* 404 */
.nf{text-align:center;padding:64px 40px 60px;margin-top:20px}
.nf h1{font-size:clamp(2.2rem,5vw,3.6rem);color:#fff}
.nf .lead{margin-left:auto;margin-right:auto;color:#e4defb}
.nf .cta-row{justify-content:center}
.nf-f{display:flex;justify-content:center;margin-bottom:26px}

/* footer */
.ft{margin-top:20px;background:var(--plate);border-radius:44px 44px 0 0;box-shadow:inset 0 1px 0 var(--line)}
.ft-in{max-width:1280px;margin:0 auto;padding:44px 24px 36px;display:grid;grid-template-columns:var(--rail) minmax(0,1fr);gap:24px var(--gap)}
.ft-b p{margin:10px 0 0;color:var(--mut);font-size:.95rem}
.ft-l{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px;align-content:flex-start}
.ft-l a{display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border-radius:999px;background:rgba(190,175,255,.1);color:var(--tx);text-decoration:none;font-weight:600;font-size:.93rem}
.ft-l a:hover{background:var(--lav2);color:var(--ink)}
.ft-n{grid-column:1/-1;margin:0;padding-top:22px;border-top:1px solid var(--line);color:var(--mut);font-size:.88rem;line-height:1.55}

/* responsive */
@media (max-width:1180px){:root{--rail:288px;--gap:32px}.shell.pg-key{--rail:380px}.nav a{padding:0 14px}.f{width:96px}.thread{width:40px}.sky{padding:40px 36px}.sheet{padding:36px 34px}}
@media (max-width:960px){
.hd-in{grid-template-columns:minmax(0,1fr) auto auto;gap:10px;padding:10px 16px}
.burger{display:flex}
.nav{display:none;position:absolute;left:12px;right:12px;top:calc(100% + 8px);flex-direction:column;gap:4px;padding:10px;border-radius:28px;background:#221a52;box-shadow:inset 0 0 0 1px var(--line),0 30px 60px -20px #000}
.nav.open{display:flex}
.nav a{min-height:50px;padding:0 20px;font-size:1.02rem}
.shell,.shell.pg-key{grid-template-columns:minmax(0,1fr);grid-template-rows:auto;grid-template-areas:"top" "rail" "body";padding:24px 16px 56px}
.rail{position:static;max-height:none;overflow:visible;margin-top:28px}
.body .sec:first-child,.body>.sheet:first-child{margin-top:44px}
.ft-in{grid-template-columns:minmax(0,1fr);padding:36px 16px 30px}
}
@media (max-width:720px){
body{font-size:16px}
.sky{padding:32px 22px 28px;border-radius:32px}
.sky::before{width:140px;height:140px;right:-48px;top:-48px}
.sky::after{display:none}
.eyebrow{max-width:calc(100% - 70px)}
.hero h1{padding-right:0;max-width:none}
.cta-row .btn{flex:1 1 220px}
.bul{flex-direction:column;align-items:flex-start}
.bul li{border-radius:22px}
.p2f{flex-direction:column;align-items:stretch;padding:0}
.thread{width:0;height:26px;border-top:0;border-left:4px dotted var(--lav);margin:4px auto 0}
.thread::after{right:auto;left:-9px;top:auto;bottom:-6px}
.frames{justify-content:center;padding-top:14px}
.f{width:108px}
.tiles,.glasses,.seq{grid-template-columns:minmax(0,1fr)}
.seq::before{left:50px;right:auto;top:40px;bottom:40px;border-top:0;border-left:4px dotted rgba(185,171,255,.55)}
.sec,.band{margin-top:52px}
.sheet{padding:28px 20px;border-radius:28px}
.take{padding:28px 22px;border-radius:28px}
.band{flex-direction:column;align-items:flex-start;padding:34px 24px;border-radius:32px}
.band-f{align-self:center}
.facts{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.fact,.fact:nth-child(-n+2){grid-column:span 1;padding:20px 18px;border-radius:24px}
.fact:first-child{grid-column:span 2}
.fact b,.fact:nth-child(-n+2) b{font-size:1.8rem}
.fact:first-child b{font-size:2.8rem}
.calc{grid-template-columns:minmax(0,1fr)}
.calc-wrap{border-radius:30px;padding:10px}
.ex li{grid-template-columns:minmax(0,1fr);gap:8px;padding:22px 20px}
.nf{padding:44px 22px}
pre.code{padding-left:16px;padding-right:16px;font-size:.8rem;border-radius:20px}
.faq summary{padding-left:20px;font-size:1rem}.faq details p{padding:0 20px 20px}
.sh{gap:12px}.fr{width:56px;height:38px;padding-left:10px}.fr::after{right:11px;top:9px}
}
@media (max-width:420px){
.logo b{font-size:1.02rem}.logo{gap:7px}.mark{width:30px;height:30px}
.key-top{min-height:44px;padding:0 6px 0 14px;font-size:.86rem;gap:6px}
.key-top>i{width:26px;height:26px}.key-top>i::after{left:11px;top:7px;height:12px}
.burger{width:44px;height:44px}
.f{width:92px}
.form{padding:12px 12px 20px;border-radius:30px}
.tabs2 button{font-size:.9rem}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}html{scroll-behavior:auto}}