/* ==========================================================================
   Nook site design system  (shared by the landing page and the /guides/ pages)
   --------------------------------------------------------------------------
   THEMING   Tokens live on :root (dark default). Light = prefers-color-scheme
             or html[data-theme="light"]; html[data-theme="dark"] forces dark.
   TOKENS    --bg --bg-2 --surface --surface-2 --line --ink --muted --dim
             --accent (soft green) --accent-ink  --working --thinking --need
             --done --error   --font-display --font-body --font-mono
   LAYOUT    .container (max 1160px)  .container-narrow (max 760px)  .section
             .section-head  .grid  .grid-2 .grid-3  .stack (vertical rhythm)
   TYPE      .eyebrow  .lede  .prose (article typography: h2-h4, p, ul/ol,
             blockquote, code, pre, table, img, figure)  .kbd  .mono
   PARTS     .nav (+ .nav-inner .brand .nav-links .nav-cta .icon-btn)
             .btn  .btn-primary  .btn-ghost  .btn-lg
             .card  .card-hover  .badge  .badge-dot  .chip[data-st]
             .callout  .callout-warn  .callout-ok  .code-block (+ .copy-btn)
             .steps (numbered cards)  .breadcrumbs  .toc
             .footer (+ .footer-grid .footer-col .footer-mark .footer-credit)
   HELPERS   .sr-only  .skip-link  .reveal (scroll reveal, JS-enhanced)
             [data-st="working|thinking|need|done|error"] sets --c
   MOTION    Everything animated is transform/opacity and is disabled under
             prefers-reduced-motion. Content is visible without JS.
   ========================================================================== */

:root{
  --bg:#0B0B0F; --bg-2:#101016; --surface:#15151C; --surface-2:#1C1C25;
  --line:rgba(255,255,255,.09); --line-2:rgba(255,255,255,.16);
  --ink:#F4F3F7; --muted:#A9A6B3; --dim:#8C8996;
  --accent:#8FD3A0; --accent-2:#6FB585; --accent-ink:#0A1A0F; --accent-soft:rgba(143,211,160,.14);
  --working:#5AA9FF; --thinking:#A98BFA; --need:#FFB547; --done:#4FD69C; --error:#FF6B7A;
  --chip-mix:0%;
  --shadow:0 30px 80px -40px rgba(0,0,0,.8);
  --glow:rgba(143,211,160,.16);
  --font-display:"Bricolage Grotesque",ui-sans-serif,system-ui,"Segoe UI",sans-serif;
  --font-body:"Inter",ui-sans-serif,system-ui,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,"Cascadia Code","SF Mono",Menlo,Consolas,monospace;
  --ease:cubic-bezier(.2,.8,.2,1); --spring:cubic-bezier(.32,1.2,.4,1);
  --nav-h:64px; --r:20px;
  color-scheme:dark;
}
@media (prefers-color-scheme:light){
  :root:not([data-theme="dark"]){
    --bg:#F6F5F8; --bg-2:#EEECF2; --surface:#FFFFFF; --surface-2:#F2F0F6;
    --line:rgba(22,20,28,.1); --line-2:rgba(22,20,28,.2);
    --ink:#16141C; --muted:#55505F; --dim:#6A6574;
    --accent:#1F7A45; --accent-2:#2F8A52; --accent-ink:#FFFFFF; --accent-soft:rgba(31,122,69,.1);
    --chip-mix:48%; --shadow:0 30px 70px -40px rgba(40,30,70,.35); --glow:rgba(31,122,69,.12);
    color-scheme:light;
  }
}
:root[data-theme="light"]{
  --bg:#F6F5F8; --bg-2:#EEECF2; --surface:#FFFFFF; --surface-2:#F2F0F6;
  --line:rgba(22,20,28,.1); --line-2:rgba(22,20,28,.2);
  --ink:#16141C; --muted:#55505F; --dim:#6A6574;
  --accent:#1F7A45; --accent-2:#2F8A52; --accent-ink:#FFFFFF; --accent-soft:rgba(31,122,69,.1);
  --chip-mix:48%; --shadow:0 30px 70px -40px rgba(40,30,70,.35); --glow:rgba(31,122,69,.12);
  color-scheme:light;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--nav-h) + 16px)}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
html.lenis,html.lenis body{height:auto}
html.lenis{scroll-behavior:auto!important}
.lenis.lenis-stopped{overflow:hidden}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.6 var(--font-body);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-wrap:break-word;min-width:320px}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration-color:color-mix(in srgb,currentColor 35%,transparent);text-underline-offset:.2em}
a:hover{text-decoration-color:currentColor}
::selection{background:var(--accent);color:var(--accent-ink)}
:focus-visible{outline:2px solid var(--working);outline-offset:3px;border-radius:6px}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.08;letter-spacing:-.025em;margin:0;text-wrap:balance}
p{margin:0}
code,kbd,pre{font-family:var(--font-mono)}
.sr-only{position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip-link{position:absolute;inset-inline-start:12px;top:-100px;z-index:200;background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:10px;font-weight:600;text-decoration:none}
.skip-link:focus{top:12px}

/* ---- layout ---- */
.container{width:min(100% - 32px,1160px);margin-inline:auto}
.container-narrow{width:min(100% - 32px,760px);margin-inline:auto}
.section{padding-block:clamp(72px,10vw,132px)}
.section-head{max-width:720px;margin-bottom:clamp(32px,5vw,56px)}
.section-head h2{font-size:clamp(32px,4.6vw,56px);font-weight:700}
.section-head .lede{margin-top:16px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:600;letter-spacing:.02em;color:var(--muted);margin-bottom:16px}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--accent)}
.lede{font-size:clamp(17px,1.5vw,20px);color:var(--muted);max-width:56ch}
.stack>*+*{margin-top:1em}
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}
@media (max-width:820px){.grid-2,.grid-3{grid-template-columns:1fr}}

/* ---- buttons / badges / kbd ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:44px;padding:11px 20px;border-radius:999px;border:1px solid var(--line-2);
  background:transparent;color:var(--ink);font:600 15px/1 var(--font-body);text-decoration:none;cursor:pointer;
  transition:transform .25s var(--ease),background .2s,border-color .2s,box-shadow .25s}
.btn:hover{transform:translateY(-2px);border-color:var(--dim);background:color-mix(in srgb,var(--ink) 6%,transparent)}
.btn svg{width:18px;height:18px;flex:none}
.btn-primary{background:var(--accent);color:var(--accent-ink);border-color:transparent;box-shadow:0 10px 30px -12px var(--accent)}
.btn-primary:hover{background:var(--accent);filter:brightness(1.07);border-color:transparent;box-shadow:0 16px 40px -12px var(--accent)}
.btn-ghost{background:color-mix(in srgb,var(--surface) 70%,transparent)}
.btn-lg{min-height:54px;padding:15px 28px;font-size:17px}
.badge{display:inline-flex;align-items:center;gap:8px;padding:6px 13px;border-radius:999px;font-size:13px;font-weight:600;color:var(--muted);background:var(--surface);border:1px solid var(--line)}
.badge-dot{width:7px;height:7px;border-radius:50%;background:var(--done);box-shadow:0 0 10px var(--done)}
.kbd{display:inline-block;font:600 12.5px/1 var(--font-mono);padding:5px 8px;border-radius:7px;background:var(--surface-2);border:1px solid var(--line-2);border-bottom-width:2px;color:var(--ink);white-space:nowrap}
[data-st=working]{--c:var(--working)}[data-st=thinking]{--c:var(--thinking)}[data-st=need]{--c:var(--need)}[data-st=done]{--c:var(--done)}[data-st=error]{--c:var(--error)}
.chip{display:inline-block;font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;white-space:nowrap;
  color:color-mix(in srgb,var(--c) calc(100% - var(--chip-mix)),var(--ink));background:color-mix(in srgb,var(--c) 16%,transparent)}

/* ---- cards / callouts ---- */
.card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:clamp(20px,2.4vw,30px);overflow:hidden}
.card h3{font-size:clamp(20px,2vw,25px);font-weight:700;margin-bottom:8px}
.card p{color:var(--muted)}
.card-hover{transition:transform .35s var(--ease),border-color .25s}
.card-hover:hover{transform:translateY(-3px);border-color:var(--line-2)}
.callout{display:grid;grid-template-columns:auto 1fr;gap:14px;padding:16px 18px;border-radius:16px;background:var(--surface);border:1px solid var(--line);border-inline-start:3px solid var(--need);color:var(--muted);font-size:15px}
.callout strong{color:var(--ink)}
.callout svg{width:22px;height:22px;color:var(--need);margin-top:2px}
.callout-ok{border-inline-start-color:var(--done)}.callout-ok svg{color:var(--done)}
.callout-warn{border-inline-start-color:var(--need)}
.code-block{position:relative;display:flex;align-items:center;gap:10px;background:var(--bg-2);border:1px solid var(--line);border-radius:14px;padding:6px 6px 6px 16px}
.code-block code{flex:1;min-width:0;font-size:13px;overflow-x:auto;white-space:nowrap;padding:8px 0;scrollbar-width:thin}
.copy-btn{flex:none;min-height:36px;padding:7px 14px;border-radius:999px;border:1px solid var(--line-2);background:var(--surface);color:var(--ink);font:600 13px var(--font-body);cursor:pointer}
.copy-btn:hover{border-color:var(--dim)}

/* ---- prose (articles / guides) ---- */
.prose{font-size:17px;line-height:1.75;color:var(--muted)}
.prose>*+*{margin-top:1.2em}
.prose h2{font-size:clamp(26px,3.2vw,36px);color:var(--ink);margin-top:2em}
.prose h3{font-size:22px;color:var(--ink);margin-top:1.8em}
.prose h4{font-size:18px;color:var(--ink);margin-top:1.6em}
.prose strong{color:var(--ink)}
.prose a{color:var(--accent);text-decoration:underline}
.prose ul,.prose ol{padding-inline-start:1.4em}.prose li+li{margin-top:.4em}
.prose li::marker{color:var(--dim)}
.prose blockquote{margin-inline:0;padding:.2em 1.2em;border-inline-start:3px solid var(--accent);color:var(--ink)}
.prose code{font-size:.88em;background:var(--surface-2);border:1px solid var(--line);padding:.12em .4em;border-radius:6px;color:var(--ink);overflow-wrap:anywhere}
.prose pre{background:var(--bg-2);border:1px solid var(--line);border-radius:14px;padding:16px 18px;overflow-x:auto;font-size:13.5px;line-height:1.6;color:var(--ink)}
.prose pre code{background:none;border:0;padding:0}
.prose table{width:100%;border-collapse:collapse;font-size:15px}
.prose th,.prose td{text-align:start;padding:10px 12px;border-bottom:1px solid var(--line)}
.prose th{color:var(--ink)}
.prose img{border-radius:14px;border:1px solid var(--line);height:auto}
.prose hr{border:0;border-top:1px solid var(--line);margin-block:2.4em}
.breadcrumbs{font-size:14px;color:var(--dim)}
.breadcrumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.breadcrumbs li+li::before{content:"/";margin-inline-end:6px;opacity:.6}
.toc{font-size:14.5px;color:var(--muted)}

/* ---- nav ---- */
.nav{position:sticky;top:0;z-index:100;height:var(--nav-h);border-bottom:1px solid transparent;transition:background .3s,border-color .3s,backdrop-filter .3s}
.nav.scrolled{background:color-mix(in srgb,var(--bg) 72%,transparent);-webkit-backdrop-filter:blur(18px) saturate(1.4);backdrop-filter:blur(18px) saturate(1.4);border-bottom-color:var(--line)}
.nav-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:inline-flex;align-items:center;gap:10px;font:700 21px/1 var(--font-display);letter-spacing:-.02em;text-decoration:none}
.brand img{width:32px;height:32px}
.nav-links{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
.nav-links a{display:block;padding:8px 13px;border-radius:999px;font-size:14.5px;font-weight:500;color:var(--muted);text-decoration:none;transition:color .2s,background .2s}
.nav-links a:hover,.nav-links a[aria-current]{color:var(--ink);background:color-mix(in srgb,var(--ink) 8%,transparent)}
.nav-tools{display:flex;align-items:center;gap:8px}
.nav-cta{min-height:40px;padding:9px 16px;font-size:14px}
.icon-btn{display:none;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;place-items:center}
.icon-btn svg{width:18px;height:18px}
.js .icon-btn{display:grid}
.js .nav-menu-btn{display:none}
.progress{position:fixed;inset:0 0 auto 0;height:2px;z-index:150;background:linear-gradient(90deg,var(--accent),var(--working),var(--thinking));transform:scaleX(0);transform-origin:0 50%;pointer-events:none}
@media (max-width:960px){
  .js .nav-menu-btn{display:grid}
  .nav-links{position:absolute;inset:var(--nav-h) 0 auto 0;flex-direction:column;align-items:stretch;padding:10px 16px 18px;background:color-mix(in srgb,var(--bg) 94%,transparent);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);display:none}
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 14px;font-size:16px}
  html:not(.js) .nav{height:auto;position:static}
  html:not(.js) .nav-inner{flex-wrap:wrap;padding-block:10px}
  html:not(.js) .nav-links{position:static;display:flex;flex-direction:row;flex-wrap:wrap;background:none;border:0;padding:0;order:3;width:100%}
  .nav-cta{display:none}
}

/* ---- hero ---- */
.hero{position:relative;padding-block:clamp(28px,5vw,64px) clamp(56px,8vw,110px);overflow:clip}
.hero::before{content:"";position:absolute;inset:-20% -10% auto;height:80%;background:radial-gradient(50% 60% at 70% 20%,var(--glow),transparent 70%),radial-gradient(40% 50% at 15% 10%,color-mix(in srgb,var(--thinking) 12%,transparent),transparent 70%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,5.4fr) minmax(0,6fr);gap:clamp(28px,4vw,64px);align-items:center}
.hero-copy h1{font-size:clamp(38px,4.5vw,64px);font-weight:800;line-height:1.02;letter-spacing:-.035em;margin:18px 0 22px}
.hero-copy h1 em{font-style:normal;background:linear-gradient(100deg,var(--accent) 0%,var(--working) 55%,var(--thinking) 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-cta{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}.hero-cta .btn-lg{min-height:50px;padding:13px 22px;font-size:16px}
.hero-fine{margin-top:18px;font-size:14px;color:var(--dim);max-width:52ch}
.hero-points{display:flex;flex-wrap:wrap;gap:8px 18px;list-style:none;margin:26px 0 0;padding:0;font-size:14px;color:var(--muted)}
.hero-points li{display:flex;align-items:center;gap:8px}
.hero-points svg{width:16px;height:16px;color:var(--accent)}
@media (max-width:980px){.hero-grid{grid-template-columns:minmax(0,1fr)}.hero-copy{max-width:640px}}

/* ---- stage: fake desktop with the interactive island (bounded, fixed ratio) ---- */
.stage-wrap{position:relative;min-width:0}
.stage{position:relative;aspect-ratio:4/3;border-radius:26px;overflow:hidden;isolation:isolate;border:1px solid var(--line-2);
  background:#0A0A0E;box-shadow:var(--shadow),0 0 0 6px color-mix(in srgb,var(--ink) 4%,transparent);contain:layout paint}
@media (max-width:640px){.stage{aspect-ratio:4/5.2;border-radius:22px}}
.stage-bg{position:absolute;inset:-6% -4%;will-change:transform;
  background:radial-gradient(70% 60% at 15% 100%,#3B2A63 0%,transparent 65%),radial-gradient(60% 55% at 95% 0%,#1E3A5C 0%,transparent 65%),radial-gradient(40% 40% at 60% 70%,#4A2A3C 0%,transparent 70%),linear-gradient(160deg,#17151F,#0B0A10)}
.stage-win{position:absolute;border-radius:12px;background:#1A1A22;border:1px solid rgba(255,255,255,.07);overflow:hidden;opacity:.72;filter:saturate(.8)}
.stage-win::before{content:"";display:block;height:26px;background:#22222C}
.win-a{left:-3%;top:34%;width:56%;height:62%}
.win-b{right:-4%;top:46%;width:48%;height:56%;background:#121218}
.sk{display:block;height:7px;border-radius:4px;margin:9px 14px 0;background:rgba(255,255,255,.1)}
.sk.w1{width:62%}.sk.w2{width:40%;background:color-mix(in srgb,var(--thinking) 35%,transparent)}.sk.w3{width:74%}.sk.w4{width:52%;background:color-mix(in srgb,var(--done) 30%,transparent)}.sk.w5{width:30%}.sk.w6{width:66%}
.stage-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,8,12,.5),rgba(8,8,12,.1) 40%,rgba(8,8,12,.5));pointer-events:none}
.taskbar{position:absolute;inset:auto 0 0 0;height:40px;display:flex;align-items:center;justify-content:center;gap:8px;background:rgba(18,18,24,.78);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-top:1px solid rgba(255,255,255,.07);z-index:3}
.taskbar i{display:block;width:20px;height:20px;border-radius:6px;background:rgba(255,255,255,.14)}
.taskbar img{width:22px;height:22px}
.taskbar time{position:absolute;inset-inline-end:14px;font-size:11px;color:#C9C6D2;font-variant-numeric:tabular-nums}
.stage-cap{margin-top:14px;font-size:13.5px;color:var(--dim);text-align:center}

/* ---- the island (always black, like the real app) ---- */
.isl{position:absolute;inset-inline:0;top:0;margin-inline:auto;z-index:10;width:min(74%,268px);height:36px;background:#000;color:#F3F1F6;font-size:13px;
  border-radius:0 0 20px 20px;box-shadow:0 8px 30px -10px rgba(0,0,0,.8);transition:width .55s var(--spring),height .55s var(--spring),border-radius .45s var(--spring)}
.isl{max-height:calc(100% - 44px)}.isl[data-tab=sessions]{--h:376px}.isl[data-tab=usage]{--h:262px}.isl[data-tab=shelf]{--h:224px}
.isl.open,html:not(.js) .isl{width:min(94%,440px);height:var(--h);border-radius:0 0 28px 28px;box-shadow:0 30px 70px -20px rgba(0,0,0,.9),0 0 0 1px rgba(255,255,255,.06)}
.isl-clip{position:absolute;inset:0;overflow:hidden;border-radius:inherit}
.isl-pill{all:unset;box-sizing:border-box;position:absolute;inset:0 0 auto 0;height:36px;display:flex;align-items:center;gap:8px;padding:0 14px 0 8px;cursor:pointer;transition:opacity .2s .1s;border-radius:0 0 20px 20px}
.isl-pill:focus-visible{outline:2px solid var(--working);outline-offset:-3px}
.isl-pill img{width:24px;height:24px;flex:none}
.isl-sum{flex:1;min-width:0;font-size:12px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.isl-dots{display:flex;gap:4px}.isl-dots i{width:7px;height:7px;border-radius:50%;background:var(--c)}
.isl.open .isl-pill,html:not(.js) .isl-pill{opacity:0;pointer-events:none;transition-delay:0s}
.isl-panel{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .15s;padding:0 10px 12px;display:flex;flex-direction:column}
.isl.open .isl-panel,html:not(.js) .isl-panel{opacity:1;pointer-events:auto;transition:opacity .3s .12s}
.isl-head{display:flex;align-items:center;gap:6px;height:46px;flex:none;padding-inline-start:2px}
.isl-head img{width:30px;height:30px}
.isl-tabs{display:flex;gap:2px}
.isl-tab{border:0;background:transparent;color:#9A96A4;font:600 12.5px var(--font-body);padding:7px 11px;border-radius:999px;cursor:pointer;min-height:30px}
.isl-tab:hover{color:#fff}.isl-tab[aria-selected=true]{background:#202028;color:#fff}
.isl-tab:focus-visible,.isl-x:focus-visible,.pill:focus-visible,.isl-strip:focus-visible{outline:2px solid var(--working);outline-offset:1px}
.isl-sys{margin-inline-start:auto;font-size:11px;color:#8B8794;font-variant-numeric:tabular-nums;white-space:nowrap}
.isl-x{width:28px;height:28px;border-radius:50%;border:0;background:#1B1B22;color:#B5B1BE;cursor:pointer;display:grid;place-items:center;flex:none}
.isl-x svg{width:11px;height:11px}
.isl-pane{flex:1;min-height:0;overflow:auto;scrollbar-width:thin;animation:paneIn .35s var(--ease)}
.isl-pane[hidden]{display:none}
@keyframes paneIn{from{opacity:0;transform:translateY(-6px)}}
.slist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.srow{background:#141319;border:1px solid rgba(255,255,255,.04);border-radius:16px;padding:7px 11px 7px 7px;display:grid;grid-template-columns:32px 1fr auto;gap:10px;align-items:center;transition:background .3s,border-color .3s}
.srow img{width:32px;height:32px}
.srow[data-st=need]{border-color:color-mix(in srgb,var(--c) 45%,transparent);background:linear-gradient(90deg,color-mix(in srgb,var(--c) 11%,#141319),#141319)}
.s-name{display:block;font-weight:650;font-size:12.5px;line-height:1.3;color:#fff}
.s-name small{font-weight:500;color:#807C8A;font-size:11px;margin-inline-start:4px}
.s-task{display:block;font-size:11.5px;color:#9A96A4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.srow .chip{color:var(--c)}
.srow-x{grid-column:1/-1;margin:2px 0 2px 42px}
.srow-x[hidden]{display:none}
.subs{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.subs li{display:grid;grid-template-columns:8px 1fr 70px 50px;gap:8px;align-items:center;font-size:11px;color:#B8B4C0}
.subs li i{width:6px;height:6px;border-radius:50%;background:var(--c)}
.subs em{font-style:normal;color:var(--c);text-align:end}
.sbar{height:4px;border-radius:4px;background:rgba(255,255,255,.09);overflow:hidden}
.sbar b{display:block;height:100%;background:var(--c);width:100%;transform-origin:0 50%;transform:scaleX(var(--p,.5));transition:transform .8s var(--ease)}
.ask{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.ask code{font:11.5px var(--font-mono);background:rgba(255,255,255,.08);padding:5px 8px;border-radius:8px;color:#F1EFF4}
.pill{border:0;border-radius:999px;padding:7px 13px;font:600 12px var(--font-body);background:rgba(255,255,255,.12);color:#F3F1F6;cursor:pointer;min-height:30px}
.pill:hover{background:rgba(255,255,255,.2)}.pill-main{background:#F3F1F6;color:#111}.pill-main:hover{background:#fff}
.ustack{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.ucard{background:#141319;border-radius:18px;padding:14px}
.ucard h4{font:650 11.5px var(--font-body);letter-spacing:.02em;color:#9A96A4;margin:0 0 12px}
.meter{display:grid;grid-template-columns:1fr auto;gap:4px 8px;margin-bottom:12px;font-size:12px;color:#E8E6EE}
.meter:last-child{margin-bottom:0}
.meter small{grid-column:1/-1;color:#807C8A;font-size:10.5px}
.meter b{font-variant-numeric:tabular-nums}
.bar{grid-column:1/-1;height:6px;border-radius:6px;background:rgba(255,255,255,.09);overflow:hidden}
.bar span{display:block;height:100%;border-radius:6px;background:linear-gradient(90deg,var(--working),var(--thinking));transform-origin:0 50%;transform:scaleX(var(--p,.4));transition:transform .9s var(--ease)}
.bar.g span{background:linear-gradient(90deg,var(--done),#8FD3A0)}
.demo-note{font-size:10.5px;color:#76727F;margin:8px 4px 0}
.isl-strip{display:flex;gap:8px;list-style:none;margin:0;padding:0 0 8px;overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:thin}
.tile{flex:0 0 118px;height:132px;scroll-snap-align:start;border-radius:20px;background:#17161D;padding:13px;display:flex;flex-direction:column;justify-content:space-between}
.tile i{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;background:var(--tc);color:#101014}
.tile svg{width:18px;height:18px}
.tile b{display:block;font-size:13px;color:#fff}.tile small{font-size:11px;color:#9A96A4;line-height:1.3;display:block}
@media (max-width:480px){
  .srow:nth-child(4){display:none}.isl[data-tab=sessions]{--h:290px}.isl-sys{display:none}.ustack{grid-template-columns:1fr}
  .isl[data-tab=usage]{--h:300px}.isl-tab{padding:7px 9px}
}

/* ---- how it works ---- */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;list-style:none;margin:0;padding:0;position:relative}
.steps>li{counter-increment:s}
.step{height:100%}
.step::before{content:"0" counter(s);display:block;font:700 14px var(--font-mono);color:var(--accent);margin-bottom:22px}
.step .ico{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent);margin-bottom:16px}
.step .ico svg{width:24px;height:24px}
.flowline{display:flex;gap:14px;align-items:center;justify-content:center;flex-wrap:wrap;margin-top:28px;font:500 13px var(--font-mono);color:var(--dim)}
.flowline b{color:var(--ink);font-weight:600}
@media (max-width:820px){.steps{grid-template-columns:1fr}}

/* ---- bento ---- */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.b-wide{grid-column:span 3}.b-third{grid-column:span 2}.b-big{grid-column:span 4}
.bento .card{display:flex;flex-direction:column;gap:16px;justify-content:space-between;min-height:240px}
.bento .viz{margin-top:auto}
.mini{background:#000;color:#F3F1F6;border-radius:18px;padding:8px;font-size:12px;display:grid;gap:5px}
.mini .srow{grid-template-columns:28px 1fr auto;padding:5px 9px 5px 5px}
.mini .srow img{width:28px;height:28px}
.mini-tree{padding:12px 14px}
.chips{display:flex;flex-wrap:wrap;gap:7px}
.chips span{padding:6px 12px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);font-size:13px;font-weight:600}
.keys{display:grid;gap:10px;font-size:14px;color:var(--muted)}
.keys div{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.keys .kbd{flex:none}
.gauge{display:grid;gap:10px}
.gauge .meter{color:var(--ink);margin:0}.gauge .meter small{color:var(--dim)}
.gauge .bar{background:color-mix(in srgb,var(--ink) 10%,transparent)}
.roadmap{margin-top:22px;font-size:14.5px;color:var(--dim)}
@media (max-width:980px){.b-wide,.b-third,.b-big{grid-column:span 6}.b-third{grid-column:span 3}}
@media (max-width:640px){.b-third{grid-column:span 6}}

/* ---- privacy ---- */
.privacy-box{position:relative;border:1px solid var(--line);border-radius:36px;padding:clamp(28px,5vw,64px);overflow:hidden;
  background:radial-gradient(60% 80% at 0% 0%,var(--glow),transparent 65%),radial-gradient(60% 80% at 100% 100%,color-mix(in srgb,var(--working) 12%,transparent),transparent 65%),var(--bg-2)}
.privacy-box h2{font-size:clamp(34px,5.4vw,70px);font-weight:800;letter-spacing:-.035em;max-width:14ch}
.pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:40px}
.pgrid .card{background:color-mix(in srgb,var(--surface) 80%,transparent);padding:22px}
.pgrid svg{width:28px;height:28px;color:var(--accent);margin-bottom:14px}
.pgrid h3{font-size:19px}.pgrid p{font-size:14.5px}
@media (max-width:980px){.pgrid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.pgrid{grid-template-columns:1fr}}

/* ---- gullu ---- */
.gullu{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:clamp(24px,5vw,72px);align-items:center}
.gullu-art{position:relative;display:grid;place-items:center;aspect-ratio:1;max-width:420px;width:100%;margin-inline:auto}
.gullu-art::before{content:"";position:absolute;inset:6%;border-radius:50%;background:radial-gradient(circle,var(--glow),transparent 68%)}
.gullu-art img{position:relative;width:78%;height:auto}
.gullu-states{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:24px 0 0;padding:0}
@media (max-width:820px){.gullu{grid-template-columns:1fr}.gullu-art{max-width:300px}}
@media (prefers-reduced-motion:no-preference){.gullu-art img{animation:bob 5s ease-in-out infinite}@keyframes bob{50%{transform:translateY(-8px) rotate(-1.5deg)}}}

/* ---- install ---- */
.install{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;list-style:none;margin:0;padding:0;counter-reset:i}
.install>li{counter-increment:i}
.install .card::before{content:counter(i);display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--accent);color:var(--accent-ink);font:700 15px var(--font-display);margin-bottom:16px}
.install .code-block{margin-top:14px}
.install-extra{margin-top:16px;display:grid;gap:16px}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:28px}
@media (max-width:900px){.install{grid-template-columns:1fr}}

/* ---- faq ---- */
.faq{max-width:820px}
.faq details{border-top:1px solid var(--line)}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:22px 4px;font:600 clamp(17px,1.8vw,20px)/1.3 var(--font-display);letter-spacing:-.01em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";flex:none;width:10px;height:10px;border-inline-end:2px solid var(--muted);border-block-end:2px solid var(--muted);transform:rotate(45deg) translateY(-3px);transition:transform .3s var(--ease)}
.faq details[open] summary::after{transform:rotate(-135deg) translateY(-3px)}
.faq details>p{padding:0 4px 24px;color:var(--muted);max-width:68ch}
.faq details>p a{color:var(--accent)}

/* ---- final cta ---- */
.final{position:relative;text-align:center;border:1px solid var(--line);border-radius:40px;padding:clamp(48px,8vw,104px) 24px;overflow:hidden;background:radial-gradient(60% 90% at 50% 0%,var(--glow),transparent 70%),var(--bg-2)}
.final h2{font-size:clamp(34px,5.4vw,68px);font-weight:800;letter-spacing:-.035em;max-width:16ch;margin-inline:auto}
.final .lede{margin:18px auto 0}
.final .cta-row{justify-content:center}

/* ---- footer ---- */
.footer{position:relative;margin-top:clamp(56px,8vw,110px);border-top:1px solid var(--line);overflow:clip;background:linear-gradient(180deg,transparent,var(--bg-2))}
.footer::before{content:"";position:absolute;inset:auto -10% -30% -10%;height:90%;background:radial-gradient(50% 60% at 50% 100%,var(--glow),transparent 70%);pointer-events:none}
.footer-top{position:relative;display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:32px;padding-block:64px 36px}
.footer-col h2{font:600 13px var(--font-body);letter-spacing:.06em;text-transform:uppercase;color:var(--dim);margin-bottom:14px}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:9px;font-size:15px}
.footer-col a{color:var(--muted);text-decoration:none}.footer-col a:hover{color:var(--ink);text-decoration:underline}
.footer-credit p{color:var(--muted);font-size:15px;max-width:34ch}
.footer-credit .by{font:600 clamp(20px,2vw,24px)/1.25 var(--font-display);color:var(--ink);letter-spacing:-.02em;margin-bottom:10px}
.footer-credit .by span{color:var(--accent)}
.social{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.social .btn{min-height:38px;padding:8px 14px;font-size:13.5px}
.footer-legal{position:relative;border-top:1px solid var(--line);padding-block:22px;display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:space-between;align-items:center;font-size:13px;color:var(--dim)}
.footer-legal p{max-width:70ch}
.footer-legal a{color:var(--muted)}
.footer-mark-wrap{position:relative;height:clamp(110px,24vw,330px);overflow:hidden;margin-top:6px}
.footer-mark{position:absolute;inset-inline:0;bottom:-.17em;margin:0;text-align:center;font:800 clamp(150px,34vw,470px)/.9 var(--font-display);letter-spacing:-.06em;user-select:none;
  color:transparent;background:linear-gradient(180deg,color-mix(in srgb,var(--ink) 38%,transparent) 0%,color-mix(in srgb,var(--accent) 12%,transparent) 55%,transparent 92%);-webkit-background-clip:text;background-clip:text;
  -webkit-text-stroke:1.5px color-mix(in srgb,var(--ink) 22%,transparent)}
.footer-peek{position:absolute;inset-inline-end:clamp(18px,10vw,170px);bottom:0;width:clamp(70px,12vw,170px);height:auto;transform:translateY(34%);z-index:2;pointer-events:none}
.to-top{position:fixed;inset-inline-end:18px;bottom:18px;z-index:90;opacity:0;transform:translateY(10px);pointer-events:none;transition:opacity .3s,transform .3s var(--ease)}
.to-top.show{opacity:1;transform:none;pointer-events:auto}
.to-top-inline{display:inline-flex}
@media (max-width:980px){.footer-top{grid-template-columns:1fr 1fr}.footer-credit{grid-column:1/-1}}
@media (max-width:420px){.footer-top{grid-template-columns:1fr}}

/* ---- reveal (JS-enhanced; content is visible without JS) ---- */
.reveal-ready .reveal{opacity:0;transform:translate3d(0,22px,0);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal-ready .reveal.in{opacity:1;transform:none}

/* ---- misc ---- */
.noscript-note{padding:10px 16px;text-align:center;font-size:14px;color:var(--muted);background:var(--surface)}
@media (min-width:2000px){body{font-size:18px}.container{width:min(100% - 64px,1360px)}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition-duration:.01ms!important;transition-delay:0s!important;scroll-behavior:auto!important}
}
@media (forced-colors:active){
  .btn,.card,.badge,.chip,.kbd,.stage,.isl,.srow,.nav-links a{border:1px solid CanvasText}
  .btn-primary{background:Highlight;color:HighlightText}
  .footer-mark{-webkit-text-fill-color:CanvasText;background:none}
  .isl{background:Canvas;color:CanvasText}
}
@media print{
  .nav,.progress,.stage-wrap,.to-top,.footer-mark-wrap,.hero-cta,.skip-link{display:none!important}
  body{background:#fff;color:#000}
  .card,.final,.privacy-box{border:1px solid #999;background:none}
  :root{--ink:#000;--muted:#222;--dim:#333;--bg:#fff}
  a{text-decoration:underline}
  .reveal-ready .reveal{opacity:1!important;transform:none!important}
}


/* ---- guides / docs layout (appended for the /guides/ pages) ---- */
svg.i{fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.doc-wrap{padding-block:20px clamp(32px,6vw,72px)}
.doc-head{max-width:820px;margin:20px 0 clamp(28px,4vw,44px)}
.doc-head h1{font-size:clamp(34px,4.6vw,56px);font-weight:800;letter-spacing:-.03em;line-height:1.05;margin:4px 0 16px}
.doc-head .lede{max-width:64ch}
.doc-meta{margin-top:18px;font-size:14px;color:var(--dim)}
.doc-meta a{color:var(--muted)}
.doc-grid{display:grid;grid-template-columns:230px minmax(0,1fr);gap:clamp(24px,4vw,56px);align-items:start}
.doc-grid.no-toc{grid-template-columns:minmax(0,1fr)}
.doc-body{min-width:0;max-width:760px}
.doc-body.hub-body{max-width:none}
.doc-side{position:sticky;top:calc(var(--nav-h) + 20px);max-height:calc(100vh - var(--nav-h) - 40px);overflow:auto;scrollbar-width:thin}
.toc-h{font:600 12px var(--font-body);letter-spacing:.08em;text-transform:uppercase;color:var(--dim);margin-bottom:12px}
.toc ol{list-style:none;margin:0;padding:0;border-inline-start:1px solid var(--line)}
.toc li a{display:block;padding:6px 0 6px 14px;margin-inline-start:-1px;border-inline-start:2px solid transparent;color:var(--muted);text-decoration:none;line-height:1.35}
.toc li a:hover{color:var(--ink);border-inline-start-color:var(--accent)}
@media (max-width:980px){
  .doc-grid{grid-template-columns:minmax(0,1fr)}
  .doc-side{position:static;max-height:none;overflow:visible;padding:16px 18px;background:var(--surface);border:1px solid var(--line);border-radius:16px}
}
.doc-body table{display:block;overflow-x:auto;max-width:100%}
.doc-body .kbd{font-size:12px}
.prose .howto{padding-inline-start:1.5em}
.prose .callout p{color:var(--muted)}
.prose .callout a{color:var(--accent)}
.prose .code-block code{background:none;border:0;padding:8px 0;font-size:13px}
.prose .faq{max-width:none}
.prose .faq summary{font-size:clamp(16px,1.6vw,19px)}
.prose .faq details>p{font-size:16px;line-height:1.65}
.shot{margin:1.6em 0}
.shot-box{display:grid;place-items:center;align-content:center;gap:4px;text-align:center;min-height:200px;padding:24px;border:2px dashed var(--line-2);border-radius:16px;color:var(--muted);font-size:15px;
  background:repeating-linear-gradient(135deg,transparent 0 14px,color-mix(in srgb,var(--ink) 3.5%,transparent) 14px 28px)}
.shot-box b{color:var(--ink)}
.shot figcaption{margin-top:10px;font-size:14px;color:var(--dim)}
.prose .fix{display:grid;gap:10px;margin:1em 0 0;padding:0}
.fix>div{display:grid;grid-template-columns:92px minmax(0,1fr);gap:14px;padding:14px 16px;background:var(--surface);border:1px solid var(--line);border-radius:14px}
.fix>div:nth-child(1){--c:var(--need)}.fix>div:nth-child(2){--c:var(--thinking)}.fix>div:nth-child(3){--c:var(--done)}
.fix dt{font:700 12px var(--font-body);letter-spacing:.06em;text-transform:uppercase;padding-top:5px;color:color-mix(in srgb,var(--c) calc(100% - var(--chip-mix)),var(--ink))}
.fix dd{margin:0;min-width:0;font-size:16px;line-height:1.65}
.fix dd>*+*{margin-top:.8em}
.fix dd ol,.fix dd ul{padding-inline-start:1.3em;margin-block:0}
@media (max-width:560px){.fix>div{grid-template-columns:1fr;gap:2px}}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:clamp(40px,6vw,72px)}
.pager-a{display:flex;flex-direction:column;gap:4px;padding:16px 20px;border:1px solid var(--line);border-radius:16px;background:var(--surface);text-decoration:none;transition:transform .3s var(--ease),border-color .2s}
.pager-a:hover{transform:translateY(-2px);border-color:var(--line-2)}
.pager-a span{font-size:12.5px;color:var(--dim);letter-spacing:.04em;text-transform:uppercase}
.pager-a b{font:600 17px/1.3 var(--font-display);color:var(--ink)}
.pager-next{text-align:end;grid-column:2}.pager-prev{grid-column:1}
@media (max-width:560px){.pager{grid-template-columns:1fr}.pager-next,.pager-prev{grid-column:auto;text-align:start}}
.doc-feedback{margin-top:28px}
.doc-feedback h2{font-size:22px;margin-bottom:6px}
.doc-feedback .cta-row{margin-top:16px}
.gcards{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:16px;margin:28px 0 8px}
.gcard{display:flex;flex-direction:column;gap:10px;text-decoration:none;color:inherit;min-height:200px}
.gcard h2{font-size:clamp(20px,2vw,24px);font-weight:700;margin:0;color:var(--ink)}
.gcard p{color:var(--muted);font-size:15.5px;line-height:1.55}
.gcard-n{font:700 13px var(--font-mono);color:var(--accent)}
.gcard-go{margin-top:auto;font-weight:600;font-size:14.5px;color:var(--accent)}
.hub-body{font-size:17px;line-height:1.75;color:var(--muted)}
.hub-body>*+*{margin-top:1.2em}
.hub-body h2:not(.gcard h2){font-size:clamp(24px,3vw,32px);color:var(--ink);margin-top:1.8em}
.hub-body a:not(.gcard){color:var(--accent)}
.hub-body ul{padding-inline-start:1.4em}.hub-body li+li{margin-top:.4em}
.nf{padding-block:clamp(40px,8vw,96px);text-align:center;display:grid;justify-items:center;gap:6px}
.nf h1{font-size:clamp(32px,4.6vw,56px);font-weight:800;letter-spacing:-.03em;line-height:1.05;max-width:18ch;margin:4px 0 10px}
.nf img{margin-bottom:10px}
.nf .eyebrow{justify-content:center}
.nf .cta-row{justify-content:center}
.nf-links{list-style:none;margin:30px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:center;font-size:15px}
.nf-links a{color:var(--muted)}
.doc-body>h2:first-child{margin-top:0}