/* Vault OS site. Tokens, materials and components in the first block are copied from the Vault OS app stylesheet (same values); the second block is the site layer. */
/* Mulish Fallback metrics (fontTools, Mulish unitsPerEm 1000, hhea ascent 1005, descent -250, lineGap 0; avg a-z advance .5067em vs Arial .4895em):
   size-adjust 103.5%; ascent-override 1.005/1.035 = 97.1%; descent-override .25/1.035 = 24.2%; line-gap-override 0% */
:root{
  --f:'Mulish',-apple-system,system-ui,sans-serif;
  --ink:#F5F3F7; --ink-2:rgba(245,243,247,.66); --ink-3:rgba(245,243,247,.56); --ink-4:rgba(245,243,247,.18);
  --hair:rgba(255,255,255,.08);
  --acc:#EBCB1A; --acc-hi:#F7DD3E; --acc-lo:#DDB90C; --on-acc:#17140A;
  --live:#5BD69A; --alert:#FF5040; --warm:#F08A5D; --idle:rgba(255,255,255,.42);
  --dotgrid:radial-gradient(circle at 1px 1px, rgba(255,255,255,.075) .9px, transparent 1.3px) 0 0/14px 14px;
  --r-hero:44px;--r-card:32px;--r-sheet:38px;--r-field:26px;--r-inner:20px;--r-thumb:22px;
  --noise:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .7 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  color-scheme:dark;
}
.hue-plum  {--rim:#C65299; --mid:#5E1A55; --deep:#1F0518; --tint:#F7D3EB}
.hue-indigo{--rim:#6663D8; --mid:#25245E; --deep:#030519; --tint:#D5D4FB}
.hue-ember {--rim:#EC7045; --mid:#7A2614; --deep:#1C0603; --tint:#FBD9CB}
.hue-moss  {--rim:#5FA58B; --mid:#1E4A3C; --deep:#05100C; --tint:#D0E9DE}
.hue-graph {--rim:#8A8A96; --mid:#2E2E35; --deep:#0C0C0F; --tint:#E4E4EA}
*{box-sizing:border-box;margin:0;padding:0}
html{background:#000;-webkit-text-size-adjust:100%}
body{background:#050506;color:var(--ink);font-family:var(--f);font-size:16px;line-height:24px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden;min-height:100vh}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;-webkit-tap-highlight-color:transparent;text-align:inherit}
input,textarea{font:inherit;color:inherit;background:none;border:0;outline:0;resize:none}
.ic{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:none;display:block}
.ic.s{width:18px;height:18px}
.ic.xs{width:14px;height:14px;stroke-width:2}
.ic.f{fill:currentColor;stroke:none}
.ink-2{color:var(--ink-2)}.ink-3{color:var(--ink-3)}
.nw{white-space:nowrap}
.t-xl{font-weight:300;font-size:32px;line-height:36px;letter-spacing:-.02em}
.t-title{font-weight:400;font-size:24px;line-height:30px;letter-spacing:-.012em;text-wrap:pretty}
.t-q{font-weight:300;font-size:30px;line-height:36px;letter-spacing:-.018em;text-wrap:pretty}
.t-q-s{font-weight:400;font-size:21px;line-height:27px;letter-spacing:-.01em;text-wrap:pretty}
.t-body{font-weight:400;font-size:17px;line-height:25px;text-wrap:pretty}
.t-body-s{font-weight:400;font-size:15px;line-height:21px;text-wrap:pretty}
.t-label{font-weight:600;font-size:16px;line-height:20px}
.t-meta{font-weight:500;font-size:13px;line-height:18px;letter-spacing:.005em}
.t-cap{font-weight:500;font-size:12px;line-height:16px;letter-spacing:.01em}
.t-unit{font-weight:300;font-size:17px;line-height:20px;color:var(--ink-2)}
.dm{display:block;color:var(--ink);overflow:visible;filter:drop-shadow(0 0 7px rgba(255,255,255,.22))}
.m-hero{
  background:
    radial-gradient(60% 30% at 16% 0%, color-mix(in oklab, color-mix(in oklab, var(--rim) 72%, white) 70%, transparent) 0%, transparent 100%),
    linear-gradient(180deg, color-mix(in oklab, var(--rim) 80%, transparent) 0%, color-mix(in oklab, var(--rim) 30%, transparent) 22%, transparent 46%),
    radial-gradient(85% 62% at 50% 66%, var(--deep) 0%, color-mix(in oklab, var(--deep) 55%, transparent) 60%, transparent 100%),
    color-mix(in oklab, var(--mid) 92%, transparent);
  box-shadow:
    inset 0 1.5px 0 rgba(255,255,255,.40),
    inset 0 0 0 1px color-mix(in oklab, var(--rim) 62%, transparent),
    inset 0 0 16px 2px color-mix(in oklab, var(--rim) 80%, transparent),
    inset 0 0 46px 0 color-mix(in oklab, var(--rim) 30%, transparent),
    inset 0 -28px 40px -24px color-mix(in oklab, var(--rim) 78%, transparent),
    0 32px 60px -28px rgba(0,0,0,.95),
    0 24px 64px -34px color-mix(in oklab, var(--rim) 55%, transparent);
}
.m-hero.lite{
  background:radial-gradient(120% 150% at 4% -18%, color-mix(in oklab, var(--rim) 62%, white) 0%, var(--rim) 22%, color-mix(in oklab, var(--rim) 48%, var(--mid)) 52%, var(--mid) 100%);
  box-shadow:inset 0 1.5px 0 rgba(255,255,255,.5), inset 0 0 0 1px rgba(255,255,255,.14), inset 0 0 18px 1px color-mix(in oklab, var(--rim) 60%, white 0%), inset 0 -18px 30px -16px rgba(0,0,0,.32), 0 22px 44px -22px rgba(0,0,0,.95);
}
.m-card{
  background:radial-gradient(110% 80% at 50% 34%, rgba(255,255,255,.075), rgba(255,255,255,0) 66%), rgba(50,50,55,.54);
  -webkit-backdrop-filter:blur(24px) saturate(170%); backdrop-filter:blur(24px) saturate(170%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12), inset 0 0 0 1px rgba(255,255,255,.05), inset 0 -26px 40px -26px rgba(0,0,0,.55), 0 20px 40px -20px rgba(0,0,0,.9);
}
.m-sheet{
  background:linear-gradient(180deg, rgba(255,255,255,.085) 0, rgba(255,255,255,.02) 150px, rgba(255,255,255,0) 100%), rgba(26,21,30,.62);
  -webkit-backdrop-filter:blur(28px) saturate(185%) brightness(.9); backdrop-filter:blur(28px) saturate(185%) brightness(.9);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.22), inset 0 0 0 1px rgba(255,255,255,.06), 0 -24px 60px -12px rgba(0,0,0,.6);
}
.m-sheet[class*="hue-"]{
  background:linear-gradient(180deg, color-mix(in oklab, var(--rim) 20%, transparent) 0, color-mix(in oklab, var(--rim) 4%, transparent) 170px, transparent 100%), color-mix(in oklab, var(--mid) 50%, rgba(14,10,16,.4));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.26), inset 0 0 0 1px color-mix(in oklab, var(--rim) 22%, transparent), 0 -24px 60px -12px rgba(0,0,0,.6);
}
.m-ctrl{
  background:linear-gradient(180deg, rgba(255,255,255,.12), rgba(255,255,255,.045));
  -webkit-backdrop-filter:blur(20px) saturate(180%); backdrop-filter:blur(20px) saturate(180%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.22), inset 0 -1px 0 rgba(0,0,0,.25), inset 0 0 0 1px rgba(255,255,255,.07), 0 10px 24px -10px rgba(0,0,0,.65);
}
.m-in{
  background:linear-gradient(180deg, rgba(255,255,255,.085), rgba(255,255,255,.04));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14), inset 0 0 0 1px rgba(255,255,255,.06);
}
.m-dock{
  background:rgba(14,14,17,.5);
  -webkit-backdrop-filter:blur(28px) saturate(170%); backdrop-filter:blur(28px) saturate(170%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.16), inset 0 0 0 1px rgba(255,255,255,.07), 0 16px 36px -12px rgba(0,0,0,.85);
}
.m-plate{
  background:rgba(16,14,20,.36);
  -webkit-backdrop-filter:blur(26px) saturate(170%); backdrop-filter:blur(26px) saturate(170%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.22), inset 0 0 0 1px rgba(255,255,255,.08), 0 12px 30px -12px rgba(0,0,0,.6);
}
.grain{position:relative;isolation:isolate}
.grain::before{content:"";position:absolute;inset:0;border-radius:inherit;background-image:var(--noise);opacity:.15;mix-blend-mode:overlay;pointer-events:none;z-index:0}
.grain>*{position:relative;z-index:1}
.fbm .m-card{-webkit-backdrop-filter:none;backdrop-filter:none;background:#262629}
.fbm .m-sheet{-webkit-backdrop-filter:none;backdrop-filter:none;background:linear-gradient(180deg,rgba(255,255,255,.07),transparent 150px),#1D1922}
.fbm .m-ctrl{-webkit-backdrop-filter:none;backdrop-filter:none;background:linear-gradient(180deg,#3B3B40,#2C2C31)}
.fbm .m-dock{-webkit-backdrop-filter:none;backdrop-filter:none;background:#141417}
.fbm .m-plate{-webkit-backdrop-filter:none;backdrop-filter:none;background:#1A181E}
@supports not ((-webkit-backdrop-filter:blur(1px)) or (backdrop-filter:blur(1px))){
  .m-card{background:#262629}.m-sheet{background:#1D1922}.m-ctrl{background:linear-gradient(180deg,#3B3B40,#2C2C31)}.m-dock{background:#141417}.m-plate{background:#1A181E}
}
@media (prefers-reduced-transparency:reduce){
  .m-card,.m-sheet,.m-ctrl,.m-dock,.m-plate{-webkit-backdrop-filter:none;backdrop-filter:none}
  .m-card{background:#262629}.m-sheet{background:#1D1922}.m-ctrl{background:#34343A}.m-dock{background:#141417}.m-plate{background:#1A181E}
}
.chip.btn{position:relative}
.chip.btn::after{content:'';position:absolute;inset:-7px 0}
.rb{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;color:var(--ink);flex:none;transition:transform .1s ease-out}
.rb.sm{width:40px;height:40px}
.rb.xs{width:36px;height:36px}
.rb:active{transform:scale(.94)}
.rb.on{background:#F3F2F5;color:#121214;box-shadow:inset 0 1px 0 #fff, 0 10px 22px -10px rgba(0,0,0,.7)}
.tag{height:28px;padding:0 12px 0 10px;border-radius:14px;display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:13px;line-height:16px;white-space:nowrap;color:#fff;background:rgba(255,255,255,.14);box-shadow:inset 0 1px 0 rgba(255,255,255,.2)}
.tag .ic{width:14px;height:14px}
.dock{position:absolute;z-index:20;left:var(--g);right:var(--g);bottom:max(calc(var(--sb) - 8px),10px);display:flex;align-items:center;gap:4px;height:64px;padding:6px;border-radius:32px;transition:transform .32s cubic-bezier(.2,.8,.2,1),opacity .2s;will-change:transform}
.dock .tab{position:relative;height:52px;min-width:52px;border-radius:26px;display:flex;align-items:center;justify-content:center;gap:8px;color:var(--ink-2);padding:0 10px}
.dock .tab.on{padding:0 18px 0 14px;color:var(--ink);background:linear-gradient(180deg,rgba(255,255,255,.16),rgba(255,255,255,.07));box-shadow:inset 0 1px 0 rgba(255,255,255,.22), inset 0 0 0 1px rgba(255,255,255,.06)}
.dock .tab span{font-weight:600;font-size:15px;line-height:20px}
.dock .tab .bdg{position:static;margin-left:-2px;min-width:18px;height:18px;padding:0 5px;border-radius:9px;background:#F3F2F5;color:#121214;font:800 11px/18px var(--f);text-align:center;font-variant-numeric:tabular-nums}
.dock .fill{flex:1}
.cta{position:relative;isolation:isolate;height:52px;padding:0 22px;border-radius:26px;display:inline-flex;align-items:center;justify-content:center;gap:8px;white-space:nowrap;
  color:var(--on-acc);font-weight:700;font-size:16px;line-height:20px;letter-spacing:.005em;font-variant-numeric:tabular-nums;flex:none;transition:transform .1s ease-out,filter .1s,opacity .2s;
  background:linear-gradient(180deg,var(--acc-hi) 0%,var(--acc) 55%,var(--acc-lo) 100%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.62), inset 0 -2px 0 rgba(120,90,0,.22), 0 12px 24px -12px rgba(0,0,0,.85)}
.cta::before{content:"";position:absolute;inset:0;border-radius:inherit;z-index:-1;
  background:radial-gradient(circle, rgba(92,68,0,.26) 1.15px, transparent 1.6px) 0 0/6px 6px;
  -webkit-mask-image:radial-gradient(70% 90% at 26% 50%, #000 0%, transparent 75%); mask-image:radial-gradient(70% 90% at 26% 50%, #000 0%, transparent 75%)}
.cta .dot{opacity:.45}
.cta:active{transform:scale(.97);filter:brightness(.94)}
.cta.wide{width:100%}
.cta.off{background:rgba(255,255,255,.1);color:var(--ink-3);box-shadow:inset 0 0 0 1px rgba(255,255,255,.08)}
.cta.off::before{display:none}
.sbtn{height:52px;border-radius:26px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 18px;font-weight:600;font-size:16px;line-height:20px;white-space:nowrap;color:var(--ink);transition:transform .1s ease-out}
.sbtn:active{transform:scale(.97)}
.sbtn.off{opacity:.4}
.tbtn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:0 12px;border-radius:22px;font-weight:600;font-size:15px;line-height:20px;color:var(--ink-2);white-space:nowrap}
.tbtn:active{background:rgba(255,255,255,.06)}
.tbtn.warn{color:#FF9B8C}
.chip{height:30px;padding:0 12px 0 10px;border-radius:15px;display:inline-flex;align-items:center;gap:7px;font-weight:600;font-size:13px;line-height:16px;white-space:nowrap;color:#fff;background:rgba(255,255,255,.12);box-shadow:inset 0 1px 0 rgba(255,255,255,.18), inset 0 0 0 1px rgba(255,255,255,.06);flex:none}
.chip.btn{cursor:pointer}
.chip.sm{height:26px;padding:0 10px 0 8px;font-size:12px;gap:6px;border-radius:13px}
.chip .ic{width:14px;height:14px}
.chip.wh{background:#F3F2F5;color:#121214;box-shadow:inset 0 1px 0 #fff}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.chips.row{flex-wrap:nowrap;overflow-x:auto;margin:0 0 10px;height:36px;flex:none;scrollbar-width:none}
.chips.row::-webkit-scrollbar{display:none}

/* ======== site layer ======== */
@font-face{font-family:"Mulish";src:url(../fonts/mulish-latin-wght-normal.woff2) format("woff2");font-weight:200 800;font-style:normal;font-display:swap}
@font-face{font-family:"Mulish Fallback";src:local("Arial");size-adjust:103.5%;ascent-override:97.1%;descent-override:24.2%;line-gap-override:0%}

:root{
  --f:"Mulish","Mulish Fallback",-apple-system,system-ui,sans-serif;
  --s-mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --s-ring:0 0 0 2px #050506,0 0 0 4px var(--ink);
  --s-bloom:radial-gradient(closest-side,color-mix(in oklab,var(--mid) 70%,transparent),transparent);
  --s-step:50vh;--s-step:50svh;
  /* breakpoint M (360-767) is the base */
  --mx:16px;--tb:56px;--gut:12px;
  --h1:44px;--h1l:48px;--h2:32px;--h2l:36px;--lead:17px;--leadl:25px;--h3:26px;--h3l:32px;--body:16px;--bodyl:23px;
  --cmd:14px;--cmdl:20px;
  --s-pad-card:20px;--s-r-stage:44px;
  --sp-t:96px;--sp-b:80px;
  --pw:clamp(170px,calc((100svh - 320px)*390/844),240px);
  --cont:calc(100vw - 2*var(--mx));
  --cl:var(--mx);
}
@media (max-width:359px){:root{--h1:36px;--h1l:40px;--h2:28px;--h2l:32px;--lead:16px;--leadl:24px;--h3:22px;--h3l:28px;--body:15px;--bodyl:21px;--cmd:13px;--cmdl:19px;--s-pad-card:16px;--s-r-stage:38px;--sp-t:80px;--sp-b:64px;--pw:clamp(170px,calc((100svh - 320px)*390/844),200px)}}
@media (min-width:768px){:root{--mx:32px;--tb:72px;--gut:16px;--h1:60px;--h1l:64px;--h2:44px;--h2l:48px;--lead:18px;--leadl:27px;--h3:30px;--h3l:36px;--body:17px;--bodyl:25px;--cmd:14px;--cmdl:20px;--s-pad-card:32px;--s-r-stage:52px;--sp-t:120px;--sp-b:96px;--pw:clamp(170px,calc((min(640px,100svh - 120px) - 40px)*390/844),240px)}}
@media (min-width:1024px){:root{--mx:48px;--tb:88px;--gut:20px;--cont:min(1200px,calc(100vw - 2*var(--mx)))}}
@media (min-width:1280px){:root{--mx:min(8.333vw,120px);--gut:24px;--h1:80px;--h1l:84px;--h2:56px;--h2l:60px;--lead:20px;--leadl:30px;--h3:34px;--h3l:40px;--s-pad-card:40px;--sp-t:160px;--sp-b:120px;--pw:clamp(170px,calc((min(640px,100svh - 120px) - 40px)*390/844),260px)}}
@media (min-width:1024px){:root{--cl:calc((100vw - var(--cont))/2);--col:calc((var(--cont) - 11*var(--gut))/12);--side:calc(4*var(--col) + 3*var(--gut))}}

/* ---------- base ---------- */
html{scroll-padding-top:16px}
body{overflow-x:clip;min-height:100vh;font-family:var(--f);position:relative}
body::before{content:"";position:fixed;inset:0;background:var(--dotgrid);pointer-events:none;z-index:0}
main{position:relative;z-index:1}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
svg{display:block}
:focus-visible{outline:none;box-shadow:var(--s-ring)!important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip-main{position:fixed;left:16px;top:16px;z-index:100;height:44px;padding:0 18px;border-radius:22px;display:inline-flex;align-items:center;font-weight:600;transform:translateY(-200%)}
.skip-main:focus{transform:none}
.wrap{width:min(1200px,calc(100% - 2*var(--mx)));margin-inline:auto}
.dot{width:8px;height:8px;border-radius:50%;background:var(--rim);flex:none;display:inline-block}
.sd{width:8px;height:8px;border-radius:50%;flex:none;display:inline-block}
.sd.alert{background:var(--alert);box-shadow:0 0 0 3px rgba(255,80,64,.2)}
.sd.warm{background:var(--warm);box-shadow:0 0 0 3px rgba(240,138,93,.2)}
.sd.live{background:var(--live);box-shadow:0 0 0 3px rgba(91,214,154,.18)}
.sd.ember{background:#EC7045;box-shadow:0 0 0 3px rgba(236,112,69,.2)}
.gdot{width:6px;height:6px;border-radius:50%;background:#8A8A96;flex:none;display:inline-block}
.chk{display:inline-grid;place-items:center;width:16px;height:16px;color:#5FA58B;flex:none}
.chk .ic{width:16px;height:16px;stroke-width:2.2}
.chk.bd{position:absolute;top:-8px;right:-8px;width:20px;height:20px;border-radius:50%;background:#5FA58B;color:#05100C;z-index:2}
.chk.bd .ic{width:12px;height:12px;stroke-width:2.6}
.wire{fill:none;stroke:rgba(255,255,255,.28);stroke-width:2;stroke-dasharray:0 7;stroke-linecap:round}
.wire.thick{stroke-width:3;stroke-dasharray:0 8;opacity:.3}
.wire.pull{opacity:.6}

/* ---------- type roles ---------- */
.h1{font-weight:300;font-size:var(--h1);line-height:var(--h1l);letter-spacing:-.035em;text-wrap:balance}
.h2{font-weight:300;font-size:var(--h2);line-height:var(--h2l);letter-spacing:-.03em;text-wrap:balance}
.h3{font-weight:300;font-size:var(--h3);line-height:var(--h3l);letter-spacing:-.02em}
.lead{font-size:var(--lead);line-height:var(--leadl);color:var(--ink-2);text-wrap:pretty;max-width:34em}
.card-body{font-size:var(--body);line-height:var(--bodyl);color:var(--ink-2);text-wrap:pretty;max-width:30em}
.t-body-s{font-size:15px;line-height:21px}
.t-q-s{font-size:21px;line-height:27px}
@media (max-width:359px){.t-label{font-size:15px}.t-meta{font-size:12px;line-height:16px}.t-cap{font-size:11px;line-height:14px}}
.eyebrow{font-weight:600;font-size:13px;line-height:18px;letter-spacing:.01em;color:var(--ink-2)}
@media (max-width:767px){.eyebrow{font-size:12px;line-height:16px}}
.dm{height:var(--dh,auto);width:auto;max-width:none}
.dm40{--dh:40px}.dm48{--dh:48px}.dm32{--dh:32px}
.dm-hero{--dh:40px}.dm-own{--dh:32px}.dm-num{--dh:40px}
@media (max-width:359px){.dm-hero{--dh:32px}.dm-num{--dh:32px}}
@media (min-width:768px){.dm-hero{--dh:48px}.dm-own{--dh:40px}.dm-num{--dh:40px}}
@media (min-width:1280px){.dm-hero{--dh:56px}.dm-num{--dh:48px}}
mark,.u{background:none}

/* ---------- controls ---------- */
.chip{-webkit-backdrop-filter:none;backdrop-filter:none}
.chip.m-ctrl,.tag.m-ctrl,.rb.m-ctrl{-webkit-backdrop-filter:none;backdrop-filter:none}
.chip.eyebrow{color:var(--ink-2);font-weight:600}
.chip.btn{border:0;font-family:inherit}
.tag{color:var(--ink)}
.sbtn,.tbtn,.cta,.rb,.chip.btn,.tab{transition:transform 180ms cubic-bezier(.23,1,.32,1),background-color 120ms ease,filter 120ms ease,color 120ms ease,opacity 160ms}
.sbtn:active,.rb:active,.chip.btn:active,.tab:active{transition-duration:80ms}
.chip.btn:active{transform:scale(.96)}
.tab:active{transform:scale(.95)}
.rb.m-ctrl{color:var(--ink)}
.rb[aria-disabled="true"]{opacity:.32;cursor:default}
@media (hover:hover) and (pointer:fine){
 .sbtn.m-ctrl:hover,.rb.m-ctrl:hover,.chip.btn:not(.wh):hover{background:linear-gradient(180deg,rgba(255,255,255,.16),rgba(255,255,255,.085));color:var(--ink)}
 .tbtn:hover{color:var(--ink)}.cta:hover{filter:brightness(1.05)}
 .dock .tab:hover{color:var(--ink)}
}
.sbtn.pick{background:#F3F2F5;color:#121214;box-shadow:inset 0 1px 0 #fff,0 10px 22px -10px rgba(0,0,0,.7)}
.chip.btn:not(.wh){color:var(--ink-2)}
.tbtn .ic{flex:none}
.skip .sk-s{display:none}

/* ---------- fit boxes (fixed-geometry diagrams) ---------- */
.fit{--w:var(--nw);--h:var(--nh);container-type:inline-size;position:relative;width:100%;max-width:calc(var(--w)*1px);aspect-ratio:var(--w)/var(--h)}
@media (max-width:767px){.fit{--w:var(--mnw,var(--nw));--h:var(--mnh,var(--nh))}}
.fit-in{position:absolute;left:0;top:0;width:calc(var(--w)*1px);height:calc(var(--h)*1px);transform-origin:0 0;transform:scale(var(--k,var(--kc)));--kc:min(1,tan(atan2(100cqw,calc(var(--w)*1px))))}

/* ---------- top bar and wordmark ---------- */
.topbar{position:absolute;left:0;right:0;top:0;height:var(--tb);z-index:5}
.tb-in{height:100%;display:flex;align-items:center;justify-content:space-between}
.wordmark{position:relative;font-weight:600;font-size:17px;line-height:20px;letter-spacing:-.005em;display:inline-block;color:var(--ink)}
.wm-dot{position:absolute;left:calc(100% + 4px);top:-2px;width:8px;height:8px;border-radius:50%;background:var(--live);box-shadow:0 0 0 4px rgba(91,214,154,.16)}
.gh{height:44px;padding:0 16px 0 14px;gap:8px}
.gh-ic{width:18px;height:18px}
@media (max-width:359px){.gh{width:44px;padding:0;justify-content:center}.gh-t{display:none}}
@media (hover:hover){.wordmark:hover{opacity:.85}}

/* ---------- dock ---------- */
.dock{position:fixed;z-index:50;left:50%;right:auto;bottom:max(16px,calc(env(safe-area-inset-bottom) + 8px));transform:translateX(-50%);width:max-content;max-width:calc(100vw - 16px);height:64px;padding:6px;border-radius:32px;gap:4px}
.dock .tab{min-width:0;padding:0 10px;flex:none;color:var(--ink-2)}
.dock .tab.on{padding:0 10px}
.dock .tabic{width:20px;height:20px;stroke-width:1.6}
.dock .puck{position:absolute;left:0;top:0;width:0;height:52px;border-radius:26px;pointer-events:none;opacity:0;background:linear-gradient(180deg,rgba(255,255,255,.16),rgba(255,255,255,.07));box-shadow:inset 0 1px 0 rgba(255,255,255,.22),inset 0 0 0 1px rgba(255,255,255,.06)}
.dock .tab{z-index:1}
.dock .cta{height:52px;padding:0 20px;z-index:1}
.dock[data-pill="hidden"] .cta{opacity:0;visibility:hidden}
.dock[data-pill="gone"] .cta{display:none}
.dock .tab span{display:none}
@media (min-width:768px){.dock .tab{padding:0 14px}.dock .tab.on{padding:0 14px}.dock .tab span{display:inline}}
@media (max-width:767px){.dock .tab{width:48px;padding:0}.dock .tab.on{padding:0}}
@media (max-width:359px){.dock{padding:4px}.dock .tab{width:44px}.dock .cta{padding:0 14px}}

/* ---------- chapters: shared ---------- */
.bloom{position:absolute;width:600px;height:500px;background:var(--s-bloom);opacity:.55;pointer-events:none;z-index:-1;inset:auto}
@media (min-width:1024px){.bloom{width:900px;height:700px}}
.stage,.hero,.deck,.stepper{position:relative;isolation:isolate;overflow-x:clip}
.stage{padding-block:var(--sp-t) var(--sp-b)}
.stage .bloom{top:12%;right:-12%}
main>section:nth-of-type(even) .bloom{right:auto;left:-12%}
.ch-hd{display:flex;flex-direction:column;align-items:flex-start;gap:20px}
.ch-hd .eyebrow{margin:0}
.ch-hd.center{align-items:center;text-align:center;max-width:760px;margin-inline:auto}
.ch-hd.center .lead{text-align:center}
.stage>.wrap>.ch-hd.center{margin-bottom:48px}
@media (min-width:1280px){.stage>.wrap>.ch-hd.center{margin-bottom:64px}}
.ch-hd .h2{margin:0}
.ch-hd .lead{margin:0}
.legend{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}
.legend .chip{color:var(--ink-2)}
.legend .chip.wh{color:#121214}

/* ---------- install field ---------- */
.fld.install{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;padding:12px 12px 12px 18px;border-radius:26px;min-height:0;width:100%}
.fld .cmd{flex:1 1 auto;min-width:0;font-family:var(--s-mono);font-weight:500;font-size:var(--cmd);line-height:var(--cmdl);user-select:all;-webkit-user-select:all}
.fld .copy{flex:0 0 auto;min-width:120px;height:44px;margin-left:auto;font-family:inherit}
.fld .copy .cp-d{display:none;align-items:center;gap:6px}
.fld .copy.is-done .cp-l{display:none}.fld .copy.is-done .cp-d{display:inline-flex}
.fld .copy .ic{width:16px;height:16px;stroke-width:2.4}
.no-js .fld .copy{display:none}
.no-js .fld.install{padding-right:18px}
.fld-label{margin-bottom:8px;color:var(--ink-2)}
.help{min-height:18px;margin-top:6px}
@media (min-width:768px){.fld.install{flex-wrap:nowrap;padding:8px 8px 8px 20px;min-height:60px}.fld .copy{margin-left:12px}}
@media (min-width:1280px){.fld.install{min-height:64px}.fld .copy{height:48px}}
@media (min-width:768px){.fld .cmd{flex:1 1 auto}}

/* ---------- hero ---------- */
.hero{padding-top:calc(var(--tb) + 24px);padding-bottom:var(--sp-b)}
.hero-grid{display:flex;flex-direction:column;gap:32px}
.hero .bloom.b-tr{right:-20%;top:-8%}
.hero .bloom.b-bl{left:-20%;bottom:-12%;right:auto}
.hc-top{display:flex;flex-direction:column;align-items:flex-start;gap:24px}
.hc-top .eyebrow{margin-bottom:0}
.hc-top .h1{margin:0}
.hc-top .lead{margin:0}
.hc-field{display:flex;flex-direction:column}
.hc-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:4px 16px;margin-top:8px}
.hc-row .tbtn{padding-left:0}
.hc-row .meta-line{flex:1 1 220px}
@media (min-width:768px){
 .hero-grid{gap:40px}
 .hc-top{order:1}.hc-field{order:2}.router{order:3;margin:24px auto 0}
 .hero{padding-top:calc(var(--tb) + 40px)}
 .hc-row .meta-line{text-align:right;flex:1 1 auto}
}
@media (min-width:1280px){
 .hero{min-height:100vh;min-height:100svh;display:flex;align-items:center;padding-top:var(--tb);padding-bottom:120px}
 .hero-grid{display:grid;grid-template-columns:repeat(12,1fr);column-gap:24px;row-gap:40px;grid-template-rows:auto 1fr;width:min(1200px,calc(100% - 2*var(--mx)));align-items:start}
 .hc-top{grid-column:1/7;grid-row:1;order:0}
 .hc-field{grid-column:1/7;grid-row:2;order:0}
 .router{grid-column:7/13;grid-row:1/3;justify-self:end;align-self:center;order:0;margin:0}
 .hc-top .h1{max-width:588px}
 .hc-top{gap:32px}
 .hc-top .lead{max-width:560px;margin-top:-8px}
 .hc-row .meta-line{flex:0 1 auto}
}
.hero .eyebrow.chip{height:30px}

/* router */
.router{--rw:min(calc(100vw - 32px),358px);--tg:8px;--tth:104px;--th:120px;--ty:168px;--oh:104px;--oy:324px;--rh:428px;--tw:calc((var(--rw) - 2*var(--tg))/3);width:var(--rw);margin-inline:auto;display:flex;flex-direction:column}
@media (max-width:359px){.router{--rw:min(calc(100vw - 32px),288px);--tg:9px;--th:104px;--oh:88px;--oy:308px;--rh:396px}}
@media (min-width:768px){.router{--rw:560px;--tg:25px;--tth:128px;--th:150px;--ty:200px;--oh:104px;--oy:392px;--rh:496px}}
@media (min-width:1280px){.router{--rw:576px;--tg:24px;--tth:132px;--th:160px;--ty:220px;--oh:112px;--oy:428px;--rh:560px}}
.router-cap-m{margin-bottom:8px}
@media (min-width:768px){.router-cap-m{display:none}}
.router-box{position:relative;width:var(--rw);height:var(--rh)}
.wires{position:absolute;left:0;top:0;width:100%;height:100%;overflow:visible;pointer-events:none}
.router .wires path{vector-effect:non-scaling-stroke;fill:none;stroke:rgba(255,255,255,.28);stroke-width:2;stroke-dasharray:0 7;stroke-linecap:round}
.router .wires{display:none}
.router .w-m{display:block}
@media (max-width:359px){.router .w-m{display:none}.router .w-s{display:block}}
@media (min-width:768px){.router .w-m,.router .w-s{display:none}.router .w-t{display:block}}
@media (min-width:1280px){.router .w-t{display:none}.router .w-d{display:block}}
.rt-task{position:absolute;left:0;top:0;width:var(--rw);height:var(--tth);border-radius:32px;padding:20px;display:flex;flex-direction:column;gap:12px}
.rt-task-t{font-weight:300;font-size:22px;line-height:28px;letter-spacing:-.01em}
.rt-task .chip{align-self:flex-start}
@media (min-width:768px){.rt-task{padding:28px;gap:16px}.rt-task-t{font-size:28px;line-height:34px}}
.rt{position:absolute;top:var(--ty);left:calc(var(--i)*(var(--tw) + var(--tg)));width:var(--tw);height:var(--th);border-radius:32px;padding:20px 14px 16px;display:flex;flex-direction:column}
.rt-owner{position:absolute;right:0;top:var(--oy);width:var(--tw);height:var(--oh);border-radius:32px;padding:14px;display:flex;flex-direction:column}
.rt-top{display:flex;align-items:center;gap:8px}
.rt-l{font-size:14px;line-height:18px}
.rt-num{margin-top:auto;display:block}
.rt-num .dm{margin-left:2px}
.rt-cap{display:none;margin-top:6px}
@media (min-width:768px){.rt{padding:20px}.rt-owner{padding:20px}.rt-l{font-size:16px;line-height:20px}.rt-cap{display:block;margin-top:6px}.rt-num{margin-top:auto}}
.rt .rt-cap,.rt-owner .rt-cap{color:var(--ink-3)}
@media (max-width:767px){.rt-owner{padding:14px 14px 12px}.rt-owner .rt-num{margin-top:8px}.rt-owner .rt-cap{display:block;margin-top:4px;color:var(--ink-2)}}
@media (max-width:359px){.rt-owner{padding:10px}.rt-owner .rt-l{font-size:13px;line-height:16px}.rt-owner .rt-num{margin-top:6px}.dm-own{--dh:24px}}
.token{position:absolute;left:0;top:0;width:10px;height:10px;margin:-5px 0 0 -5px;border-radius:50%;background:#fff;box-shadow:0 0 0 4px rgba(255,255,255,.12),0 0 16px rgba(255,255,255,.6);opacity:0;pointer-events:none;z-index:3}
.router-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:8px;min-height:36px}
.router-caption{flex:1;min-width:0}
.no-js .replay{display:none}
.router.route-wait .replay{visibility:hidden}
.rt::after,.rt-owner::after{content:"";position:absolute;inset:0;border-radius:inherit;box-shadow:0 0 40px -6px var(--rim);opacity:0;pointer-events:none;transition:opacity 380ms}
.rt-owner::after{opacity:.5}

/* ---------- decks and stepper: default = stacked (no JS, short or narrow viewports) ---------- */
.deck,.stepper{padding-block:var(--sp-t) var(--sp-b)}
.deck-hd.wrap{margin-bottom:40px}
.deck-wrap{width:min(1200px,calc(100% - 2*var(--mx)));margin-inline:auto;position:relative}
.deck-sticky{position:relative}
.deck-sticky>.bloom{top:50%;left:30%;transform:translate(-50%,-50%)}
.deck-side{display:none}
.side-copy{display:none}
.deck-sentinels{display:none}
.deck-view{position:relative}
.deck-track{display:flex;flex-direction:column;gap:16px}
.card{position:relative;isolation:isolate;display:flex;flex-direction:column;border-radius:var(--s-r-stage);padding:var(--s-pad-card);overflow:hidden}
.card .c-top{display:flex;flex-direction:column;align-items:flex-start;gap:8px;margin-bottom:20px}
.card .c-top .chip{color:#fff;height:auto;min-height:30px;padding-block:6px;white-space:normal;text-wrap:balance}
.card .c-top .chip{font-size:12px;line-height:16px}
@media (min-width:768px){.card .c-top .chip{font-size:13px;line-height:18px;padding-block:6px}}
.card .c-ag{white-space:normal}
.card .ag-line{display:none}
@media (max-width:767px){.card .c-ag{display:none}.card .ag-line{display:block}.card .c-top{margin-bottom:16px}}
.card .h3{margin:0 0 12px;max-width:100%}
.card .card-body{margin:0 0 24px}
.vis{margin-top:auto;display:flex;align-items:flex-end;min-height:0}
@media (max-width:767px){.vis{margin-top:auto}}
.vf{display:block}
.vf .fit-in{display:flex;flex-direction:column;justify-content:flex-end;align-items:flex-start}
.vf .fit-in>*{width:calc(var(--w)*1px)}
@media (min-width:1280px){.deck-wrap .deck-track{margin-left:auto;width:min(100%,792px)}}
.pager-row{display:flex;align-items:center;justify-content:space-between;gap:16px}
.pager{position:relative;display:flex;align-items:center}
.pg{width:24px;height:44px;display:grid;place-items:center;flex:none}
.pg i{display:block;width:6px;height:6px;border-radius:50%;background:var(--ink);opacity:.42;transition:opacity 120ms}
.pg[aria-current="true"] i{opacity:0}
.pill{position:absolute;left:2px;top:50%;width:20px;height:6px;margin-top:-3px;border-radius:3px;background:#F3F2F5;transform:translateX(calc(var(--i,0)*24px));pointer-events:none}
@media (hover:hover) and (pointer:fine){.pg:hover i{opacity:.66}}
.arrows{display:flex;gap:12px}

/* pinned (JS present, tall and wide enough) */
@media (min-height:640px) and (min-width:360px){
 .js .deck-wrap,.js .step-wrap{width:auto;margin:0;height:calc(100vh + (var(--n) - 1)*var(--s-step));height:calc(100svh + (var(--n) - 1)*var(--s-step))}
 .js .deck-sticky{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden;display:flex;flex-direction:column;justify-content:center;gap:12px}
 .js .deck-sentinels{display:block;position:absolute;left:0;top:0;width:1px;height:100%;pointer-events:none}
 .js .deck-sentinels>div{position:absolute;left:0;width:1px;top:calc(var(--i)*var(--s-step) + 50vh - var(--s-step)/2);top:calc(var(--i)*var(--s-step) + 50svh - var(--s-step)/2);height:var(--s-step)}
 .js .deck-sentinels>div:first-child{top:-100vh;top:-100svh;height:calc(100vh + 50vh + var(--s-step)/2);height:calc(100svh + 50svh + var(--s-step)/2)}
 .js .deck-side{display:block}
 .js .deck-side .side-copy{display:none}
 .js .deck-view{overflow:hidden;padding-block:48px;margin-block:-48px;flex:none}
 .js .deck-track{flex-direction:row;gap:var(--dg,4px);padding-left:var(--mx);width:max-content;transform:translateX(calc(var(--i,0)*-1*(var(--cw) + var(--dg,4px))));will-change:transform}
 .js .card{flex:none;width:var(--cw);height:var(--ch);padding:var(--s-pad-card);opacity:0;visibility:hidden;transition:opacity 140ms ease-out}
 .js .card.is-active{opacity:1;visibility:visible;transition-duration:200ms}
 .js .card.is-next{opacity:.6;visibility:visible;transition-duration:200ms}
 .js .deck-track{--cw:calc(100vw - 32px);--dg:4px;--ch:min(560px,calc(100vh - 16px - 96px - 36px - env(safe-area-inset-bottom)));--ch:min(560px,calc(100svh - 16px - 96px - 36px - env(safe-area-inset-bottom)))}
 .js .card .vis{overflow:hidden}
 .js .side-ctrl{padding-inline:var(--mx)}
 .js .side-ctrl .pager-row{justify-content:flex-start}
 .js .side-ctrl{display:flex;align-items:center;justify-content:space-between;height:36px;margin-bottom:96px}
 .js .arrows{display:none}
 .js .skip .sk-l{display:none}.js .skip .sk-s{display:inline}.js .skip .ic{display:none}
 .js .skip{min-height:36px}
 .js .deck-sticky .pg{height:44px;margin-block:-4px}
}
@media (min-height:640px) and (min-width:768px){
 .js .deck-track{--cw:calc(100vw - 112px);--dg:16px;--ch:min(560px,calc(100vh - 200px));--ch:min(560px,calc(100svh - 200px))}
 .js .side-ctrl{flex-direction:column;justify-content:center;gap:8px;height:auto;margin-bottom:0;padding-inline:var(--mx)}
 .js .side-ctrl .pager-row{justify-content:center;gap:16px;width:100%}
 .js .arrows{display:flex}
 .js .skip .sk-l{display:inline}.js .skip .sk-s{display:none}.js .skip .ic{display:block}
}
@media (min-height:640px) and (min-width:1024px){
 .js .deck-hd.wrap{position:absolute;width:1px;height:1px;margin:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
 .js .deck-sticky{display:grid;grid-template-columns:calc(var(--cl) + var(--side)) var(--gut) 1fr;grid-template-rows:1fr auto 1fr;gap:0;align-items:center}
 .js .deck-side{grid-column:1;grid-row:2;padding-left:var(--cl);position:relative;z-index:2}
 .js .deck-side .side-copy{display:flex;flex-direction:column;align-items:flex-start;gap:20px;margin-bottom:40px}
 .js .deck-side .side-copy .h2{margin:0}.js .deck-side .side-copy .lead{margin:0}
 .js .deck-view{grid-column:3;grid-row:1/4;margin-block:0;padding-block:48px;align-self:center}
 .js .deck-track{padding-left:0;--cw:min(640px,58vw);--dg:16px;--ch:min(600px,calc(100vh - 160px));--ch:min(600px,calc(100svh - 160px))}
 .js .side-ctrl{flex-direction:column;align-items:stretch;gap:16px;padding-inline:0;margin-bottom:0}
 .js .side-ctrl .pager-row{justify-content:space-between;gap:16px}
 .js .skip{align-self:flex-start;padding-left:0}
 .js .deck-sticky>.bloom{grid-column:1/-1;grid-row:1/-1}
}
@media (min-height:640px) and (min-width:1280px){.js .deck-track{--cw:720px}}

/* ---------- card visuals ---------- */
.brief{height:auto;overflow:hidden;border-radius:20px}
.brief .br{display:grid;grid-template-columns:120px 1fr;align-items:center;height:44px;padding:0 20px;gap:12px}
.brief .br+.br{border-top:1px solid var(--hair)}
.brief .bv{color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
@media (max-width:767px){.brief .bv{white-space:normal;line-height:18px}.brief .br{grid-template-columns:84px 1fr;padding:6px 14px;min-height:44px;height:auto}.brief .br:nth-child(n+4){display:none}}
.v2{display:flex;flex-direction:column;justify-content:flex-end;gap:16px}
.devrow{display:flex;align-items:flex-end;gap:32px}
.dcol{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:6px}
.rul{width:var(--w);display:flex;flex-direction:column;gap:2px}
.rul .rl{text-align:center}
.rb-bar{display:block;height:10px;background:repeating-linear-gradient(90deg,rgba(255,255,255,.6) 0 1px,transparent 1px 6px) bottom/100% 6px no-repeat,repeating-linear-gradient(90deg,rgba(255,255,255,.6) 0 1px,transparent 1px 30px) bottom/100% 10px no-repeat}
.dev{position:relative;flex:none}
.dev .scr{border:1.5px solid rgba(255,255,255,.7);box-sizing:border-box;position:relative;overflow:hidden}
.dev-desktop{width:200px;height:128px}.dev-desktop .scr{height:104px;border-radius:6px}
.dev-desktop .stand{position:absolute;left:50%;bottom:0;width:60px;height:24px;margin-left:-30px}
.dev-desktop .stand::before{content:"";position:absolute;left:16px;right:16px;top:0;height:14px;border-inline:1.5px solid rgba(255,255,255,.7)}
.dev-desktop .stand::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:4px;border:1.5px solid rgba(255,255,255,.7);border-radius:3px 3px 6px 6px;border-bottom:0}
.dev-tablet{width:96px;height:128px}.dev-tablet .scr{height:128px;border-radius:9px}
.dev-phone{width:56px;height:112px}.dev-phone .scr{height:112px;border-radius:11px}
.dev-small{width:44px;height:92px}.dev-small .scr{height:92px;border-radius:9px}
.bars{display:flex;flex-direction:column;gap:6px;padding:12px 8px 0}
.bar{display:block;height:8px;border-radius:3px;background:rgba(255,255,255,.34)}
.dev-small .bars{padding:10px 6px 0;gap:5px}.dev-small .bar{height:6px}
.skl{display:flex;align-items:center;flex-wrap:wrap;gap:8px 12px}
.skl .chip.sk{font-family:var(--s-mono);font-weight:500;font-size:12px;line-height:16px;color:var(--ink)}
@media (max-width:767px){.v2 .devrow{transform:scale(.62);transform-origin:0 100%;margin-bottom:0}.v2{gap:8px}.v2 .skl .chip{display:none}}
.sw{--sw:600px;--sh:216px;width:calc(var(--sw)*var(--sc,1));height:calc(var(--sh)*var(--sc,1));flex:none}
.sw>.sample{transform:scale(var(--sc,1));transform-origin:0 0}
@media (max-width:767px){.sw{--sw:318px;--sh:176px}}
.sample{display:flex;gap:16px;width:var(--sw);height:var(--sh)}
.sample .pl{position:relative;flex:1 1 0;min-width:0;padding:16px;border-radius:20px;display:flex;flex-direction:column}
.sample .pl.studio{box-shadow:inset 0 1px 0 rgba(255,255,255,.14),inset 0 0 0 1px rgba(255,255,255,.06),inset 0 0 0 1.5px #C65299}
.sample .pop{position:absolute;top:12px;right:12px;height:24px;font-size:12px;padding:0 10px}
.sample .pr{font-weight:300;font-size:30px;line-height:36px;letter-spacing:-.02em;margin-top:4px}
.sample .pm{color:var(--ink-2);margin-bottom:10px}
.sample .pf{color:var(--ink-2)}
.sample .pick{margin-top:auto;height:36px;padding:0;width:100%;font-size:14px}
.sample.is-built .c3{margin-left:8px}
.sample .pl>*{white-space:nowrap}
.sample.is-skeleton .t{color:transparent;background:var(--ink-4);border-radius:6px;display:inline-block;line-height:inherit}
.sample.is-skeleton .pick{background:var(--ink-4);box-shadow:none;color:transparent}
@media (max-width:767px){.sample{gap:12px}.sample .pl{padding:10px}.sample .pr{font-size:22px;line-height:26px}.sample .pf{display:none}.sample .pick{height:28px}.sample .pn{font-size:14px}.sample .pm{margin-bottom:0}.sample .pop{top:-10px;right:6px;height:20px;font-size:11px;padding:0 8px;z-index:2}.sample.is-built .c3{margin-left:8px}}
.v-sample{display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.v-sample .srow{display:flex;justify-content:space-between;align-items:center;height:16px;width:100%}
.v-sample .fresh{display:inline-flex;align-items:center;gap:6px}
.v4{position:relative;gap:0}
.v4 .marks{display:flex;gap:8px;align-items:center;margin-top:8px;flex-wrap:nowrap;height:28px}
.v4 .srow{margin-top:8px}
.v4 .sw{--sc:.8}
.v4 .ring{position:absolute;border:1.5px dotted var(--warm);border-radius:24px;pointer-events:none}
.v4 .r-gap{left:296px;top:44px;width:48px;height:92px}
.v4 .r-badge{left:262px;top:6px;width:54px;height:32px}
.v4 .marks .tag{height:26px;font-size:12px;padding:0 10px 0 8px}
.v4 .mk-pass{margin-left:auto}
@media (max-width:767px){.v4 .sw{--sc:1}.v4 .r-gap{display:none}.v4 .mk-gap{display:none}.v4 .r-badge{left:128px;top:6px;width:30px;height:22px;border-radius:11px}.v4 .marks{margin-top:4px}.v4 .srow{display:none}}
.v5{position:relative;display:flex;flex-direction:column;justify-content:flex-end;height:auto;gap:0;padding-bottom:26px}
.v5 .arcs{display:block;width:100%;height:90px;overflow:visible;margin-bottom:-2px}
.v5 .arcs .wire{vector-effect:non-scaling-stroke}
.v5 .nrow{display:grid;grid-template-columns:repeat(3,1fr);justify-items:center}
.v5 .nd{position:relative;width:132px;height:64px;border-radius:20px;display:grid;place-items:center}
.v5 .pip{position:absolute;left:50%;top:calc(100% + 10px);width:10px;height:10px;margin-left:-5px;border-radius:50%;background:var(--rim)}
.v5 .pip.ring{background:none;box-shadow:inset 0 0 0 1.5px var(--idle)}
.v5 .nd.ghost{background:none;box-shadow:none;border:1.5px dashed var(--ink-4)}
@media (max-width:767px){.v5 .nd{width:96px;height:52px}.v5 .arcs{height:60px}.v5 .nd .t-label{font-size:14px}}
.v6{display:flex;flex-direction:column;justify-content:flex-end;gap:16px}
.v6 .devrow{gap:12px;padding-top:10px}
.v6 .dcol.big .sw{--sc:.6;border:1.5px solid rgba(255,255,255,.7);border-radius:8px;overflow:hidden;box-sizing:content-box}
.v6 .zero,.v-fe .zero{display:flex;align-items:center;gap:12px}
@media (max-width:767px){.v6 .devrow{transform:scale(.53);transform-origin:0 100%}.v6 .zero{display:none}}
.v7{position:relative;height:calc(var(--h)*1px)}
.v7 .stk{position:absolute;left:0;top:0;width:380px;height:222px}
.v7 .edge{position:absolute;display:block;border-radius:32px;background:color-mix(in oklab,var(--rim) 46%,var(--mid));box-shadow:inset 0 0 0 1px color-mix(in oklab,var(--rim) 60%,transparent),0 14px 26px -16px rgba(0,0,0,.9)}
.v7 .e1{left:14px;width:352px;top:130px;height:81px;opacity:.78}
.v7 .e2{left:30px;width:320px;top:140px;height:82px;opacity:.46}
.dcard{position:absolute;left:0;top:0;width:380px;height:200px;padding:18px;border-radius:32px;display:flex;flex-direction:column}
.dr1{display:flex;align-items:center;gap:8px;height:18px}
.dr1 .dot{width:8px;height:8px;border-radius:50%;background:var(--rim);flex:none}
.dr2{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;height:60px;margin-top:10px}
.dq{width:228px;color:var(--ink)}
.dthumb{width:100px;height:60px;border-radius:16px;flex:none;display:grid;align-items:center;justify-items:center;overflow:hidden}
.dbtns{margin-top:12px;display:flex;gap:8px}
.dbtns .sbtn{height:36px;padding:0 14px;font-size:14px;pointer-events:none}
.dr4{margin-top:10px;height:18px;display:flex;align-items:center;justify-content:space-between}
.ticks{display:flex;gap:3px}
.ticks i{display:block;width:14px;height:4px;border-radius:2px;background:var(--ink-4)}
.ticks i.on{background:var(--ink)}
.v7 .tlist{position:absolute;left:404px;top:0;width:196px}
.tl-h{height:16px}
.tl-rows{list-style:none;margin:8px 0 0;padding:0}
.tl-r{height:30px;display:flex;align-items:center;gap:8px;color:var(--ink-2);white-space:nowrap}
.tl-r.cur{color:var(--ink)}
.td{display:block;width:6px;height:6px;border-radius:50%;box-shadow:inset 0 0 0 1.5px var(--ink-2);flex:none}
.tl-r.cur .td{background:var(--rim);box-shadow:none}
.v7 .plate{position:absolute;left:404px;top:174px;width:196px;height:48px;display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:16px}
.v7 .plate .dot{width:8px;height:8px;border-radius:50%;flex:none}
.pl-t{display:flex;flex-direction:column;min-width:0}
.pl-t .t-meta{color:var(--ink)}
.pl-s{white-space:nowrap}
@media (max-width:767px){
.v7 .stk{left:9px;width:300px;height:216px}
.dcard{width:300px;height:194px}
.v7 .e1{left:14px;width:272px;top:130px;height:75px}
.v7 .e2{left:30px;width:240px;top:140px;height:76px}
.dr2{height:54px}.dq{width:100%}.dthumb{display:none}
.v7 .tlist{display:none}
.v7 .plate{left:9px;top:224px;width:300px;height:32px;padding:0 12px;border-radius:16px}
.pl-t{flex-direction:row;align-items:center;gap:0;white-space:nowrap}
.pl-s::before{content:" · ";white-space:pre}
.pl-s{color:var(--ink-2)}
}
/* chapter 6 visuals */
.matrix{display:grid;grid-template-columns:auto repeat(4,minmax(14px,auto));gap:14px 18px;align-items:center;width:max-content}
.matrix .cl{text-align:center}.matrix .rl{text-align:right}
.mdot{display:block;width:14px;height:14px;border-radius:50%;background:var(--ink);box-shadow:0 0 8px rgba(255,255,255,.22);justify-self:center}
@media (max-width:767px){.matrix{gap:10px 14px}.mdot{width:10px;height:10px}}
.v-lib{display:flex;gap:24px;align-items:flex-start}
.v-lib .ld{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--ink-4);flex:none}
.v-lib .ld.on{background:var(--ink);box-shadow:0 0 6px rgba(255,255,255,.5)}
.v-lib .ld.sk{background:none;box-shadow:inset 0 0 0 1.5px var(--ink-2)}
.lib{width:288px;flex:none}
.lib-h{display:flex;align-items:baseline;gap:8px;height:20px;margin-bottom:12px}
.lib-rows{list-style:none;margin:0;padding:0}
.lib-row{display:flex;align-items:center;height:22px}
.lr-l{width:72px}.lr-c{width:20px;text-align:right;font-variant-numeric:tabular-nums;margin-right:8px}
.lr-d{display:flex;gap:4px}
.lib-leg{display:flex;gap:16px;margin-top:12px;height:16px;align-items:center}
.lib-leg span{display:inline-flex;align-items:center;gap:6px}
.lib-job{width:288px;flex:none}
.lib-job p,.lib-job ol{margin:0}
.j-k{height:16px}.j-t{margin-top:2px;line-height:20px}
.j-l{margin-top:14px;height:16px}.j-m{display:none}
.j-rows{list-style:none;padding:0;margin-top:4px!important}
.j-rows li{display:flex;align-items:center;height:20px;margin-bottom:2px}
.jx{width:16px}
.jn{font-family:var(--s-mono);font-weight:500;font-size:12px;line-height:20px;color:var(--ink);margin-right:8px;white-space:nowrap}
.jtag{display:inline-flex;align-items:center;height:18px;padding:0 6px;border-radius:9px;font-size:11px;line-height:14px;border:1px solid var(--ink-4)}
.j-s{margin-top:12px!important;height:16px}
.jm{font-family:var(--s-mono);font-weight:500;font-size:12px;line-height:18px;height:18px;color:var(--ink-2);white-space:nowrap}
.jm code{font:inherit}
.j-m1{margin-top:4px!important}
.j-m1m{display:none}
.j-f{margin-top:6px!important;height:16px}
@media (max-width:767px){
.v-lib{flex-direction:column;gap:12px;width:288px}
.lib{width:288px}
.lib-h{height:18px;margin-bottom:8px}
.lib-row{height:16px}
.lr-l{width:64px}.lr-c{width:18px;margin-right:6px}
.v-lib .ld{width:6px;height:6px}.lr-d{gap:3px}
.lib-leg{display:none}
.lib-job{width:288px}
.j-k,.j-t,.j-d,.j-m2,.j-m1,.j-f{display:none}
.j-m{display:inline}.j-l{margin-top:0}
.j-rows{margin-top:0!important}
.j-rows li{margin-bottom:0}
.j-s{margin-top:12px!important}
.j-m1m{display:block;margin-top:0}
}
.tree{overflow:hidden;padding:6px 0;border-radius:20px}
.v-tree{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.lr{display:flex;align-items:center;justify-content:space-between;height:32px;padding:0 16px 0 calc(16px + var(--ind)*16px);gap:12px}
.v-tree .tree{width:100%}
.v-tree .tags{display:flex;gap:8px}
@media (max-width:767px){.lr4{display:none}.v-tree .t2{display:none}}
.v-fe{display:flex;flex-direction:column;justify-content:flex-end;gap:12px}
.fe-chips{display:flex;gap:8px}
.fe-row{display:flex;align-items:flex-end;justify-content:space-between;gap:16px}
.v-fe .devrow{gap:16px}
.v-fe .dcol{align-items:center;gap:8px}
.v-fe .dcol .dev-desktop{width:200px}
.v-fe .wtag{height:24px;font-size:12px;padding:0 8px 0 10px;gap:4px}
.v-fe .wtag .chk{width:14px;height:14px}.v-fe .wtag .chk .ic{width:14px;height:14px}
.v-fe .scr .sw{margin:10px 10px 0}
@media (max-width:767px){.v-fe .fe-chips{display:none}.v-fe .devrow{transform:scale(.6);transform-origin:0 100%}.v-fe .zero{display:none}}

/* ---------- Ch2 routing ---------- */
.rt-grid{display:flex;flex-direction:column;gap:20px}
.rt-stage{display:flex;flex-direction:column;gap:32px;min-width:0}
.rules{margin-top:12px}
.rt-left{display:flex;flex-direction:column;gap:20px;align-items:flex-start;min-width:0}
.chips-wrap{width:100%;min-width:0}
.chips.row-m{display:flex;gap:8px;flex-wrap:nowrap;overflow-x:auto;margin:0;padding:4px 16px 4px 0;scrollbar-width:none;scroll-snap-type:x proximity;-webkit-mask-image:linear-gradient(90deg,#000 calc(100% - 16px),transparent);mask-image:linear-gradient(90deg,#000 calc(100% - 16px),transparent);height:44px;align-items:center}
.chips.row-m::-webkit-scrollbar{display:none}
.chips.row-m .chip{scroll-snap-align:start;height:36px;padding:0 14px;font-size:13px}
.chips.row-m .chip::after{inset:-4px 0}
.result{color:var(--ink);min-height:20px}
.rt-right{position:relative;min-width:0}
.result-card{padding:20px;border-radius:32px;display:flex;flex-direction:column;gap:8px;margin-bottom:24px}
.result-card .th{display:flex;align-items:center;gap:8px}
.result-card .eff{display:flex;align-items:center;gap:8px}
.result-card .ra{margin-top:6px}
.all-l{margin-bottom:12px}
.tiers{display:flex;flex-direction:column;gap:20px}
.tcard{background:none;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;background:none;padding:0;display:flex;flex-direction:column;gap:8px}
.tcard .th{display:flex;align-items:center;gap:8px}
.tcard .tn{font-size:16px;line-height:20px;font-weight:600}
.tcard .eff{display:none}
.arows{display:flex;flex-direction:column;gap:6px}
.arow{height:48px;border-radius:14px;padding:0 14px;display:flex;align-items:center;justify-content:space-between;gap:12px;border:0;text-align:left}
.arow .al{display:none}
.arow.sel{background:rgba(255,255,255,.12);box-shadow:inset 0 0 0 1.5px rgba(255,255,255,.4),0 0 24px -4px var(--rim)}
.gauge{display:inline-flex;gap:4px;align-items:flex-end}
.tk{display:block;width:3px;height:14px;border-radius:2px;background:var(--ink-4)}
.tk.on{background:var(--ink)}
.rules{display:grid;grid-template-columns:1fr;gap:8px;margin-top:8px}
.rules li{padding:16px 20px;border-radius:26px;display:flex;align-items:center}
@media (min-width:768px){
 .rt-left{max-width:none}
 .chips.row-m{flex-wrap:wrap;overflow:visible;height:auto;padding:0;-webkit-mask-image:none;mask-image:none;max-width:704px;align-items:flex-start}
 .chips.row-m .chip{height:30px;padding:0 12px;font-size:13px;white-space:nowrap}
 .chips.row-m .chip::after{inset:-7px 0}
 .result-card{display:none}.all-l{display:none}
 .tiers{flex-direction:row;gap:16px}
 .tcard{flex:1 1 0;min-width:0;min-height:420px;padding:24px;border-radius:32px;gap:12px;-webkit-backdrop-filter:blur(24px) saturate(170%);backdrop-filter:blur(24px) saturate(170%);background:radial-gradient(110% 80% at 50% 34%,rgba(255,255,255,.075),rgba(255,255,255,0) 66%),rgba(50,50,55,.54);box-shadow:inset 0 1px 0 rgba(255,255,255,.12),inset 0 0 0 1px rgba(255,255,255,.05),inset 0 -26px 40px -26px rgba(0,0,0,.55),0 20px 40px -20px rgba(0,0,0,.9)}
 .tcard .tn{font-size:24px;line-height:30px;font-weight:400}
 .tcard .eff{display:flex;flex-direction:column;gap:8px;margin-bottom:8px}
 .arow{height:auto;min-height:80px;padding:12px 14px;flex-direction:column;align-items:flex-start;justify-content:flex-start;gap:2px}
 .arow .al{display:block}.arow .ae{display:none}
 .tcard.on{transform:translateY(-4px)}
 .tcard.on::after{content:"";position:absolute;inset:0;border-radius:inherit;box-shadow:0 0 40px -6px var(--rim);opacity:.8;pointer-events:none}
 .tcard{position:relative}
 .rules{grid-template-columns:repeat(2,1fr);gap:16px}
}
@media (min-width:1280px){
 .rt-grid{gap:48px}
 .rt-head{max-width:690px}
 .rt-stage{display:grid;grid-template-columns:32fr 66fr;column-gap:2%;align-items:start}
 .rt-left{gap:16px}
 .chips.row-m{flex-direction:column;flex-wrap:nowrap;gap:8px;max-width:none}
 .chips.row-m .chip{padding:0 14px}
 .tiers{gap:24px}
 .tcard{min-height:480px}
 .rules{margin-top:0;grid-template-columns:repeat(4,1fr)}
 .rules li{height:88px}
 .rt-right .rt-wire{display:block}
}
.rt-wire{display:none}

/* ---------- Ch3 stepper visuals ---------- */
.seg{display:none;height:40px;border-radius:20px;padding:3px;gap:2px;width:100%;flex:none}
.sg{flex:1;border-radius:17px;font-weight:600;font-size:13px;line-height:16px;color:var(--ink-2);text-align:center;transition:background-color 120ms,color 120ms;min-width:0;white-space:nowrap;padding:0 4px}
.sg .sg-l{display:none}.sg.on{background:#F3F2F5;color:#121214;box-shadow:inset 0 1px 0 #fff}
.sg:active{transform:scale(.96)}
.steps{display:flex;flex-direction:column;gap:48px;width:min(1200px,calc(100% - 2*var(--mx)));margin-inline:auto}
.step{display:flex;flex-direction:column;gap:16px}
.step-cap{min-height:0;max-width:34em}
.step:nth-child(3) .step-cap{display:none}
.step-vis{min-width:0}
.sv{margin-inline:0}
.sv .fit-in{display:block}
.slab{position:absolute;left:calc(var(--x)*1px);top:calc(var(--y)*1px);width:calc(var(--w)*1px);height:calc(var(--h)*1px);border-radius:32px;padding:20px;display:flex;flex-direction:column;gap:12px}
.sr-row{display:flex;align-items:center;justify-content:space-between;gap:12px;height:56px;margin-top:-6px;margin-bottom:-6px}
.sr-row .t-meta{white-space:nowrap}
.barx{display:block;height:6px;flex:1;max-width:80px;border-radius:3px;background:var(--ink-4)}
.sr-row.pull-plum .barx{background:#C65299}.sr-row.pull-indigo .barx{background:#6663D8}
.sr-row.pull-plum .t-meta,.sr-row.pull-indigo .t-meta{color:var(--ink)}
.agent{position:absolute;left:calc(var(--x)*1px);top:calc(var(--y)*1px);width:calc(var(--w)*1px);height:calc(var(--h)*1px);border-radius:32px;padding:20px;display:flex;flex-direction:column;gap:0}
.ag-role{display:flex;align-items:center;gap:8px;height:20px;margin:0}
.ag-role .dot{width:8px;height:8px;border-radius:50%;background:var(--rim);flex:none}
.agent .dsg{align-self:flex-start;margin-top:10px}
.agent .up8{margin:12px 0 0;line-height:18px}
.agent .bud{margin-top:6px}
.agent .meter{margin-top:10px}
.agent .pl{margin:10px 0 0;line-height:18px}
.sess .meter{margin-top:0}
.bud{display:flex;align-items:flex-end;gap:10px}
.meter{display:block;height:6px;width:240px;max-width:100%;border-radius:3px;background:var(--ink-4);position:relative;overflow:hidden}
.meter::after{content:"";position:absolute;inset:0;background:var(--ink);transform-origin:left;transform:scaleX(var(--v,1))}
.meter.ms-plum::after{background:#C65299;--v:.55}.meter.ms-indigo::after{background:#6663D8;--v:.58}
.agent.sess{gap:10px}.sess .ml{margin-top:auto}.sess .meter{margin-bottom:2px}
.sw-wires{position:absolute;left:0;top:0;width:792px;height:560px;overflow:visible;pointer-events:none}
.step-vis .foot{margin-top:12px;padding:0}
.c-rows{display:flex;flex-direction:column;gap:12px}
.cr{display:flex;align-items:center;gap:16px;padding:16px 20px;border-radius:26px;min-height:72px}
.cr .cri{width:20px;height:20px;color:var(--ink-2)}
@media (min-width:768px){.cr{min-height:88px;padding:20px 24px}.step-vis{max-width:792px}.step-vis .sv{max-width:792px}}
@media (max-width:767px),(min-width:1024px) and (max-width:1279px){
 .sv{max-width:none;aspect-ratio:auto}
 .sv .fit-in{position:static;width:auto;height:auto;transform:none;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;align-items:start}
 .sv .sw-wires{display:none}
 .sv .slab{position:static;width:auto;height:auto;grid-column:1/-1;padding:16px;gap:6px;border-radius:26px}
 .sv .sr-row{height:32px;margin:0}
 .sv .agent{position:static;width:auto;height:auto;min-height:150px;padding:14px;gap:0;align-self:stretch}
 .sv .agent .dsg,.sv .agent .up8,.sv .agent .bud,.sv .agent .meter,.sv .agent .pl{margin-top:8px}
 .sv .ag-role .t-label{font-size:15px;line-height:20px}
 .sv .agent.sess{grid-column:1/-1;height:auto;min-height:0;gap:6px}
 .sv .agent.sess .meter{margin-top:0}
 .sv .agent .dm40{--dh:32px}
 .sv .bud{flex-wrap:wrap;gap:4px}
}
@media (max-width:359px){.sv .fit-in{grid-template-columns:minmax(0,1fr)}}
@media (min-width:768px){.sv{container-type:inline-size}}

.sw-wires.w-t{display:none}
@media (min-width:768px) and (max-width:1023px){
 .sv{--w:704;--h:520}
 .sv .agent .bud .t-meta{white-space:nowrap}
 .sv .sw-wires.w-d{display:none}
 .sv .sw-wires.w-t{display:block;width:704px;height:520px}
 .sv .slab{left:0!important;top:30px!important;width:240px!important;height:460px!important}
 .sv .agent.sess{left:424px!important;top:160px!important;width:280px!important;height:200px!important}
 .sv .agent.ag-plum,.sv .agent.ag-indigo{left:444px!important;width:260px!important;height:232px!important;padding:18px}
 .sv .agent.ag-plum{top:20px!important}
 .sv .agent.ag-indigo{top:268px!important}
}

/* stepper pinned */
@media (min-height:640px) and (min-width:360px){
 .js .step-sticky{padding-inline:var(--mx);gap:12px}
 .js .seg{display:flex;flex:none}
 .js .steps{display:grid;grid-template-columns:minmax(0,1fr);gap:0;width:auto;margin:0}
 .js .step{display:contents}
 .js .step-cap{grid-column:1;grid-row:1;min-height:63px;margin-bottom:12px;transition:opacity 140ms}
 .js .step:nth-child(3) .step-cap{display:block;visibility:hidden}
 .js .step-vis{grid-column:1;grid-row:2;transition:opacity 140ms}
 .js .step:not(.is-active) .step-cap,.js .step:not(.is-active) .step-vis{opacity:0;visibility:hidden;pointer-events:none}
 .js .step-sticky .side-ctrl{padding-inline:0}
}
@media (min-height:640px) and (min-width:768px){
 .js .step-sticky>.seg{max-width:560px;align-self:center;height:44px;border-radius:22px}
 .js .sg .sg-s{display:none}.js .sg .sg-l{display:inline}.js .sg{font-size:14px}
}
@media (min-height:640px) and (min-width:1024px){
 .js .step-sticky{padding-inline:0;display:grid;grid-template-columns:calc(var(--cl) + var(--side)) var(--gut) calc(var(--cont) - var(--side) - var(--gut));column-gap:0;justify-content:start;grid-template-rows:1fr auto auto auto auto 1fr}
 .js .step-sticky>.side-copy{display:flex;flex-direction:column;align-items:flex-start;gap:20px;grid-column:1;grid-row:2;padding-left:var(--cl);margin-bottom:32px}
 .js .step-sticky>.side-copy .h2,.js .step-sticky>.side-copy .lead{margin:0}
 .js .step-sticky>.seg{grid-column:1;grid-row:3;margin-left:var(--cl);width:var(--side);max-width:none;align-self:start}
 .js .step-cap{grid-column:1;grid-row:4;padding-left:var(--cl);padding-top:16px;min-height:84px;max-width:none;margin:0}
 .js .step-vis{grid-column:3;grid-row:1/-1;align-self:center}
 .js .step-sticky>.side-ctrl{grid-column:1;grid-row:5;padding-left:var(--cl);display:block;height:auto;margin:8px 0 0}
 .js .step-sticky>.bloom{grid-column:1/-1;grid-row:1/-1}
 .js .step-sticky .skip .sk-l{display:inline}.js .step-sticky .skip .sk-s{display:none}.js .step-sticky .skip .ic{display:block}
}

/* ---------- Ch4 reviews ---------- */
.loop{position:relative;margin-bottom:32px}
.loopv{display:none}
.lv-m{display:block;max-width:358px;margin-inline:auto}
@media (min-width:768px){.lv-m{display:none}.lv-t{display:block;max-width:704px;margin-inline:auto}}
@media (min-width:1280px){.lv-t{display:none}.lv-d{display:block}}
.lf .fit-in{overflow:visible}
.lsvg{position:absolute;left:0;top:0;width:calc(var(--w)*1px);height:calc(var(--h)*1px);overflow:visible;pointer-events:none}
.ln{position:absolute;border-radius:32px;display:flex;align-items:center;justify-content:center;gap:10px}
.ln.ghost{background:none;box-shadow:none;border:1.5px dashed var(--ink-3)}
.ln.ghost .t-label,.ln.ghost .t-cap{color:var(--ink-2)}
.ln.ghost.on{border-color:var(--ink-2)}.ln.ghost.on .t-label,.ln.ghost.on .t-cap{color:var(--ink)}
.ln.lit{box-shadow:inset 0 1px 0 rgba(255,255,255,.14),inset 0 0 0 1px rgba(255,255,255,.06),0 0 24px -4px var(--rim)}
.fixl{position:absolute;transform:translateX(-50%);white-space:nowrap}
.lv-m .fixl{transform:none}
.brl{position:absolute}
.pips{position:absolute;display:flex;gap:16px;align-items:center}
.pips.stack{flex-direction:column;align-items:flex-start;gap:4px}
.pp{display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.pip{display:block;width:8px;height:8px;border-radius:50%;box-shadow:inset 0 0 0 1.5px var(--idle)}
.pp.on .pip{background:#6663D8;box-shadow:none}
.loop>.replay{position:absolute;top:0;right:0}
.facts{display:grid;grid-template-columns:1fr;gap:12px}
.facts li{padding:20px;border-radius:26px;color:var(--ink-2)}
.facts li b{color:var(--ink)}
@media (min-width:768px){.facts{grid-template-columns:1fr 1fr;gap:16px}.facts li{padding:24px}}
@media (min-width:1280px){.facts{gap:24px}}

/* ---------- Ch5 guards ---------- */
.g-grid{display:flex;flex-direction:column;gap:40px}
.g-left{display:flex;flex-direction:column;gap:32px}
.gfoot{max-width:34em}
.g-rows{display:flex;flex-direction:column;gap:8px}
.grow{display:grid;grid-template-columns:1fr;grid-template-areas:"tag" "cmd" "why";gap:8px;padding:16px;border-radius:26px;justify-items:start}
.grow .gt{grid-area:tag}.grow .cmd-m{grid-area:cmd}.grow .gr{grid-area:why}
.cmd-m{font-family:var(--s-mono);font-weight:500;font-size:var(--cmd);line-height:var(--cmdl);overflow-wrap:anywhere;color:var(--ink)}
@media (min-width:768px){.grow{grid-template-columns:1fr auto;grid-template-areas:"cmd tag" "why tag";min-height:80px;padding:12px 24px;align-items:center;column-gap:16px;row-gap:2px;justify-items:stretch}.grow .gt{justify-self:end;align-self:center}.grow .cmd-m{align-self:end}.grow .gr{align-self:start}}
@media (min-width:1280px){.g-grid{display:grid;grid-template-columns:repeat(12,1fr);column-gap:24px;align-items:stretch}.g-left{grid-column:1/6;justify-content:space-between}.g-rows{grid-column:6/13}}

/* ---------- Ch7 memory ---------- */
.mem-grid{display:flex;flex-direction:column;gap:48px}
.mem-left{display:flex;flex-direction:column;gap:40px}
.sfacts{display:flex;flex-direction:column;gap:16px}
.sfact{display:flex;gap:12px;align-items:flex-start;color:var(--ink)}
.sfact .gdot{margin-top:8px}
.ladder-wrap{position:relative;max-width:690px}
.ladder-wrap>.replay{position:absolute;top:-44px;right:0}
.ladder-box{position:relative;padding-left:24px}
.spine{position:absolute;left:8px;top:0;bottom:0;width:0;border-left:2px dotted rgba(255,255,255,.28)}
.ladder{display:flex;flex-direction:column}
.lrow{position:relative;display:grid;grid-template-columns:auto 1fr;grid-template-areas:"lv lt" "lv g";column-gap:16px;row-gap:8px;padding:16px;border-radius:26px;align-items:start}
.lv{grid-area:lv;display:flex;align-items:flex-start;gap:2px;padding-top:2px}
.lv .lp{margin-top:2px}
.lt{grid-area:lt;min-width:0}
.lrow .gauge{grid-area:g}
.ln1{display:flex;align-items:center;gap:8px;margin-bottom:2px}
.seal{display:inline-grid;place-items:center;color:var(--ink-3)}.seal.on{color:var(--ink);filter:drop-shadow(0 0 5px rgba(255,255,255,.5))}
.gate{height:32px;position:relative}
.gate .tag{position:absolute;left:-24px;top:2px;color:var(--ink-2);height:26px;font-size:12px;background:linear-gradient(rgba(255,255,255,.08),rgba(255,255,255,.08)),#050506;z-index:1}
.fact-chip{display:none}
.fact-tag{position:absolute;right:14px;top:12px;margin:0}
.fact-dot{position:absolute;left:2px;top:56px;width:12px;height:12px;border-radius:50%;background:#fff;box-shadow:0 0 0 4px rgba(255,255,255,.12),0 0 14px rgba(255,255,255,.6)}
.tg .tk.on{background:var(--ink)}
@media (min-width:768px){
 .ladder-box{padding-left:168px}
 .spine{left:144px}
 .lrow{height:104px;grid-template-columns:80px 1fr auto;grid-template-areas:"lv lt g";padding:0 24px;align-items:center;column-gap:0;border-radius:32px}
 .lv{align-items:center;padding-top:0}.lv .lp{margin-top:0;margin-right:4px}
 .lrow .gauge{margin-left:16px}
 .gate .tag{left:-24px;transform:translateX(-50%);top:2px}
 .fact-chip{display:inline-flex;position:absolute;left:-168px;top:calc(50% - 15px)}
 .fact-tag,.fact-dot{display:none}
 .gate{height:32px}
 .ladder-wrap>.replay{top:-52px}
}
@media (min-width:1280px){.mem-grid{display:grid;grid-template-columns:repeat(12,1fr);column-gap:24px;align-items:center}.mem-left{grid-column:1/6}.ladder-wrap{grid-column:6/13;width:690px;max-width:100%}}

/* ---------- Ch8 evolution ---------- */
.evo{--dd:280px;display:grid;grid-template-columns:1fr;justify-items:center;row-gap:24px;margin-bottom:24px}
@media (max-width:359px){.evo{--dd:240px}}
.dial{position:relative;width:var(--dd);height:var(--dd)}
.dsvg{width:100%;height:100%;overflow:visible}
.dsvg .tk{stroke:var(--ink-4);stroke-width:2;stroke-linecap:round}
.dsvg .tk.on{stroke:var(--ink)}
.dsvg .sweep{display:none;fill:#fff;filter:drop-shadow(0 0 6px rgba(255,255,255,.7))}
.dsvg .tk{width:auto;height:auto;background:none}
.dc{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;text-align:center;padding:0 24px}
.phase{width:100%;max-width:360px}
.phase .pn{color:var(--ink-2)}.phase.on .pn{color:var(--ink)}
.phase .t-body-s{margin-top:4px}
.run-wrap{display:flex;justify-content:center;margin-bottom:16px}
.no-js .run-wrap{display:none}
.run[disabled]{opacity:.4}
[data-evo-result].result{display:flex;flex-direction:column;align-items:center;gap:6px;min-height:52px;margin-bottom:32px}
[data-evo-result].result p{display:flex;align-items:center;gap:10px}
.efacts{display:grid;grid-template-columns:1fr;gap:12px}
.efacts li{padding:20px;border-radius:26px;color:var(--ink-2)}
@media (min-width:768px){.evo{--dd:380px;grid-template-columns:1fr 1fr;column-gap:32px}.dial{grid-column:1/-1}.phase{max-width:none}.efacts{grid-template-columns:repeat(2,1fr);gap:16px}.p1,.p3{justify-self:end}.p2,.p4{justify-self:start}}
@media (min-width:1280px){
 .evo{--dd:440px;grid-template-columns:300px 440px 300px;grid-template-rows:1fr 1fr;column-gap:32px;align-items:center;justify-content:center}
 .dial{grid-column:2;grid-row:1/3}
 .p1,.p2,.p3,.p4{align-self:start}
 .p1{grid-column:1;grid-row:1;text-align:right;justify-self:end}.p4{grid-column:1;grid-row:2;text-align:right;justify-self:end}
 .p2{grid-column:3;grid-row:1;justify-self:start}.p3{grid-column:3;grid-row:2;justify-self:start}
 .phase{width:300px}
 .efacts{grid-template-columns:repeat(4,1fr);gap:24px}
}
@media (max-width:767px){.phase{max-width:358px;justify-self:start}}

/* ---------- Ch9 app ---------- */
.moments{margin-top:40px;display:flex;flex-direction:column;gap:64px}
.tabs{display:none}
.js .tabs{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;margin-bottom:-24px}
.js .tabs::-webkit-scrollbar{display:none}
.mt{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 18px;border-radius:22px;flex:none;color:var(--ink-2)}
.mt.on{color:var(--ink)}
.mt .dot{background:var(--rim)}
.moment{display:flex;flex-direction:column;gap:28px;align-items:flex-start}
.js .moment:not(.on){display:none}
.panel{display:flex;flex-direction:column;gap:12px;max-width:34em}
.panel .ph,.panel .pb{margin:0}
.pl-row{display:flex;align-items:flex-end;gap:16px;justify-content:space-between;margin-top:8px}
.steps-l{display:flex;flex-direction:column;gap:10px}
.st{display:flex;align-items:center;gap:10px;color:var(--ink-3)}
.st.cur{color:var(--ink)}.st.cur .gdot{background:var(--ink)}
.no-js .clipbtn{display:none}
.pwrap{display:flex;flex-direction:column;align-items:center;gap:12px;align-self:center}
.phone{margin:0;position:relative;width:var(--pw);aspect-ratio:540/1168;border-radius:calc(var(--pw)*.135);padding:calc(var(--pw)*.025);background:#0B0B0F;box-shadow:inset 0 0 0 1.5px rgba(255,255,255,.14),0 24px 60px -20px rgba(0,0,0,.8)}
.phone .still,.phone .clip{display:block;width:100%;height:100%;object-fit:cover;border-radius:calc(var(--pw)*.11);background:#111116}
.phone .clip{position:absolute;inset:calc(var(--pw)*.025);width:calc(100% - var(--pw)*.05);height:calc(100% - var(--pw)*.05)}
.phone .clip:not([hidden]){display:block}
@media (min-width:1024px){
 .moment{display:grid;grid-template-columns:5fr 1fr 6fr;align-items:center}
 .moment .panel{grid-column:1}.moment .pwrap{grid-column:3;justify-self:center}
 /* tabs become rows in the left column, the panel sits right under them (7.9 D) */
 .js .moments{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);grid-template-rows:1fr auto auto 1fr;gap:0 24px;min-height:min(640px,calc(100svh - 120px))}
 .js .moment.on{display:contents}
 .js .tabs{grid-column:1;grid-row:2;flex-direction:column;gap:8px;overflow:visible;margin-bottom:0;-webkit-mask-image:none;mask-image:none}
 .js .moment .panel{grid-column:1;grid-row:3;margin-top:24px;min-height:176px}
 .js .moment .pwrap{grid-column:2;grid-row:1/-1;justify-self:center;align-self:center}
 .js .mt{width:100%;height:56px;padding:0 20px;border-radius:28px;justify-content:flex-start}
 .js .mt::after{display:none}
 .js .pl-row{justify-content:flex-start;gap:20px}
 .js .mt.on{background:radial-gradient(110% 80% at 50% 34%,rgba(255,255,255,.075),rgba(255,255,255,0) 66%),rgba(50,50,55,.54);box-shadow:inset 0 1px 0 rgba(255,255,255,.12),inset 0 0 0 1.5px color-mix(in oklab,var(--rim) 55%,transparent),0 20px 40px -20px rgba(0,0,0,.9)}
}
@media (max-width:1023px){.moment .pwrap{order:-1}}
@media (max-width:767px){
 .js .mt{position:relative;height:36px;padding:0 10px;gap:8px;font-size:13px}
 .js .mt .t-label{font-size:13px;line-height:16px}
 .js .mt::after{content:'';position:absolute;inset:-4px 0}
 .js .tabs{gap:8px}
}

/* ---------- Ch10 why ---------- */
.nums{display:grid;grid-template-columns:repeat(2,1fr);gap:32px 16px;margin-bottom:56px;justify-items:center}
.num{display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center}
.num .dm-num{max-width:100%;height:auto}
.nums .num:last-child{grid-column:1/-1}
.cmps{display:grid;grid-template-columns:1fr;gap:12px}
.cmp{padding:20px;border-radius:32px;display:flex;flex-direction:column;gap:4px}
.cmp .cl{margin:0 0 8px}
.cmp .pre{margin:8px 0 0}.cmp .pre2{margin-top:16px}
.cmp p{margin:0}
.cmp .vs{display:flex;gap:10px;align-items:flex-start}
.cmp .vs .tg-dot,.cmp .vs i{margin-top:8px;flex:none}
@media (min-width:768px){.nums{grid-template-columns:repeat(5,1fr);gap:16px}.nums .num:last-child{grid-column:auto}.cmps{grid-template-columns:1fr 1fr;gap:16px}.cmp{padding:28px}}
@media (min-width:1280px){.cmps{grid-template-columns:repeat(4,1fr);gap:24px}.nums{margin-bottom:72px}}

/* ---------- Ch11 install ---------- */
.inst{display:flex;flex-direction:column;align-items:center;gap:32px}
.inst>.ch-hd{margin-bottom:0}
.inst-field{width:100%;max-width:760px}
.isteps{display:grid;grid-template-columns:1fr;gap:20px;width:100%;max-width:960px}
.istep{display:grid;grid-template-columns:auto 1fr;grid-template-areas:"n t" "n d";column-gap:16px;align-items:center}
.istep .dm32{grid-area:n}.istep .t-label{grid-area:t;margin:0}.istep .t-body-s{grid-area:d;margin:0}
.panels{display:grid;grid-template-columns:1fr;gap:12px;width:100%;max-width:960px}
.pnl{padding:24px;border-radius:32px}
.pnl h3{margin:0 0 16px}
.plist{display:flex;flex-direction:column;gap:12px}
.plist li{display:flex;gap:10px;align-items:flex-start}
.plist li i,.plist li .dot{margin-top:8px}
.reqs,.privacy{text-align:center;margin:0;max-width:34em}
.ibtns{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;align-items:center}
.inst .bloom.b-tr{top:0;right:-10%;left:auto}.inst .bloom.b-bl{bottom:0;left:-10%;top:auto;right:auto}
@media (min-width:768px){.isteps{grid-template-columns:repeat(3,1fr);gap:24px}.istep{grid-template-columns:1fr;grid-template-areas:"n" "t" "d";row-gap:8px;justify-items:start;align-content:start}.panels{grid-template-columns:1fr 1fr;gap:16px}}

/* ---------- footer ---------- */
.foot{position:relative;z-index:1;padding:48px 0 calc(48px + 96px)}
.fo-in{display:flex;flex-direction:column;gap:20px;align-items:flex-start;border-top:1px solid rgba(255,255,255,.1);padding-top:32px}
.flinks{display:flex;gap:24px;flex-wrap:wrap}
.flinks a{display:inline-flex;align-items:center;min-height:44px;color:var(--ink-2)}
.flinks a:hover{color:var(--ink)}
.flic{margin:0}
@media (min-width:768px){.fo-in{flex-direction:row;align-items:center;justify-content:space-between;flex-wrap:wrap}.flic{flex-basis:100%}}

/* ---------- accessibility and fallbacks ---------- */
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}}
@media (prefers-contrast:more){.m-card,.m-plate,.m-in,.m-ctrl{box-shadow:inset 0 0 0 1.5px rgba(255,255,255,.6)}.ink-3,.t-cap{color:var(--ink-2)}}
@media (prefers-reduced-transparency:reduce){.m-card,.m-plate,.m-in,.m-ctrl,.dock,.topbar{-webkit-backdrop-filter:none;backdrop-filter:none;background:#14141A}}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){.dock,.topbar{background:#101015}}
@media (max-height:639px){.moments{gap:48px}}

/* ===== J4: motion and interaction layer ===== */
@media (min-height:640px) and (min-width:1024px){
 .js .steps{display:contents}
}
@media (min-height:640px) and (min-width:1024px) and (max-width:1439px){
 .js .sg .sg-s{display:inline}.js .sg .sg-l{display:none}
}
@media (min-height:640px) and (min-width:768px) and (max-width:1023px){
 .js .step-sticky{padding-bottom:84px}
 .js .step-sticky>.side-ctrl{margin-bottom:0}
}
/* phones: the stepper content (up to 740 px with its caption) cannot fit a pinned viewport, so it stacks */
@media (max-width:767px){
 .js .stepper .step-wrap{height:auto;width:auto;margin:0}
 .js .stepper .step-sticky{position:static;height:auto;overflow:visible;display:block;padding-inline:0}
 .js .stepper .deck-sentinels,.js .stepper .seg,.js .stepper .side-copy,.js .stepper .side-ctrl{display:none}
 .js .stepper .steps{display:flex;flex-direction:column;gap:48px;width:min(1200px,calc(100% - 2*var(--mx)));margin-inline:auto}
 .js .stepper .step{display:flex;flex-direction:column;gap:16px}
 .js .stepper .step-cap{min-height:0;margin:0;max-width:34em}
 .js .stepper .step:nth-child(3) .step-cap{display:none}
 .js .stepper .step:not(.is-active) .step-cap,.js .stepper .step:not(.is-active) .step-vis{opacity:1;visibility:visible;pointer-events:auto}
}
/* decks: the card is centred in the space above the dock */
@media (min-height:640px) and (min-width:360px) and (max-width:767px){
 .js .deck-sticky{padding-bottom:84px}
 .js .side-ctrl{margin-bottom:0}
 .js .deck-sticky .deck-view{order:1}.js .deck-sticky .deck-side{order:2}
 .js .deck-track{--ch:min(560px,calc(100vh - 160px));--ch:min(560px,calc(100svh - 160px))}
}
@media (min-height:640px) and (min-width:768px) and (max-width:1023px){
 .js .deck-sticky{padding-bottom:84px}
 .js .deck-track{--ch:min(560px,calc(100vh - 284px));--ch:min(560px,calc(100svh - 284px))}
}
/* dock: the lit layer is a copy of the tabs, clipped to the lit tab (M23) */
.dock .puck{inset:0;width:auto;height:auto;display:flex;align-items:center;gap:4px;padding:6px;border-radius:32px;background:linear-gradient(180deg,rgba(255,255,255,.18),rgba(255,255,255,.08));box-shadow:none;clip-path:inset(6px 100% 6px 0 round 26px)}
.dock .puck .tab{color:var(--ink);z-index:auto;pointer-events:none}
/* dial sweep dot orbits the dial centre */
.dsvg .sweep.show{display:block;transform-box:view-box;transform-origin:220px 220px}
/* ladder: rows and gates come up as the fact reaches them (M18) */
.js .lrow{transition:opacity 240ms var(--e-out,cubic-bezier(.23,1,.32,1))}
.js .lrow:not(.reached){opacity:.5}
@media (min-width:768px){.js .lrow[data-level="3"]:not(.reached){opacity:1}
.js .lrow[data-level="3"]:not(.reached)>:not(.fact-chip){opacity:.5}}
.js .lrow:not(.reached) .gauge .tk.on{background:var(--ink-4)}
.js .gate .tag{transition:opacity 200ms cubic-bezier(.23,1,.32,1)}
.js .gate:not(.on) .tag{opacity:.8}
/* the deck view's shadow padding must not cover the pager and skip link above it */
.js .deck-side{position:relative;z-index:2}
/* horizontal drags belong to the deck; vertical ones still scroll the page */
.js .deck-view,.js .deck-track{touch-action:pan-y}
/* moments: a scroll row with an edge fade where the four tabs do not fit */
@media (max-width:479px){
 .js .tabs{scroll-snap-type:x proximity;-webkit-mask-image:linear-gradient(90deg,#000 calc(100% - 16px),transparent);mask-image:linear-gradient(90deg,#000 calc(100% - 16px),transparent)}
 .js .mt{scroll-snap-align:start}
}

.dock{translate:0 0;transition:transform .32s cubic-bezier(.2,.8,.2,1),opacity .2s,translate .2s cubic-bezier(.23,1,.32,1)}
.dock.is-away{translate:0 140%}
@media (prefers-reduced-motion:reduce){.dock{transition:none}}
@media (max-width:359px){.fld .cmd{overflow-wrap:anywhere}}
.fld .cmd .u{white-space:nowrap}
@media (max-width:389px){.js .mt .dot{display:none}}
@media (max-width:359px){.js .mt{padding:0 8px}.js .mt .t-label{font-size:12px;line-height:16px}.js .tabs{gap:6px}}