/* The home page's look for the inner pages (guide, docs, legal): the ruler frame, the
 * nav and footer, big tight headlines with the blue highlight, mono labels and the
 * pin-shaped buttons. Loaded after each page's own styles, so it only restyles the
 * frame and the type; the pages' demos keep their own CSS. */
:root{
  --paper:#FFFFFF;--paper-2:#F5F6F7;--ink:#151619;--ink-2:#5B5F66;--ink-3:#6B707A;
  --line:rgba(21,22,25,.1);--line-2:rgba(21,22,25,.06);
  --blue:#1B3DF5;--blue-soft:#E8ECFE;
  --sans:'Inter Tight',system-ui,-apple-system,sans-serif;--mono:'JetBrains Mono',ui-monospace,monospace;
  --ez:cubic-bezier(.2,.8,.2,1);
  --g:18px;--pad:clamp(20px,6vw,120px);--navh:68px;--top:0px;
}
html{scroll-padding-top:calc(var(--navh) + var(--top) + 20px)}
body{font-family:var(--sans);color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased;padding-top:var(--top)}
code,.mono,pre,kbd.m{font-family:var(--mono)}
::selection{background:var(--blue);color:#fff}

/* highlighted words: the brand blue, the logo's shape (sharp bottom-left) */
em.s,.hero h1 em.s,.final h2 em.s{display:inline-block;position:relative;font-style:normal;color:#fff;line-height:.9;padding:.1em .11em .07em;border-radius:.13em .13em .13em .025em;background:var(--blue)}
em.s.dsc{padding-bottom:.24em;margin-bottom:-.17em}


/* ---------- nav ---------- */
.nav{position:sticky;top:var(--top);z-index:70;background:rgba(255,255,255,.86);backdrop-filter:blur(14px) saturate(1.3);-webkit-backdrop-filter:blur(14px) saturate(1.3);border-bottom:1px solid var(--line-2)}
.nav .nav-in{display:flex;align-items:center;justify-content:space-between;gap:16px;height:var(--navh);padding:0 var(--pad);max-width:1440px;margin:0 auto}
.nav .brand,footer .brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;letter-spacing:-.035em;color:var(--ink);text-decoration:none}
.nav .mk,footer .mk{width:22px;height:22px;border-radius:50% 50% 50% 4px;background:var(--blue);border:2.5px solid #fff;box-shadow:0 2px 8px rgba(27,61,245,.35);display:grid;place-items:center;flex:none}
.nav .mk::after,footer .mk::after{content:"";width:5px;height:5px;border-radius:50%;background:#fff}
.nav-mid{display:flex;gap:28px}
.nav-mid a{font-size:14px;font-weight:500;color:var(--ink-2);position:relative;text-decoration:none;transition:color .2s}
.nav-mid a::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:1px;background:var(--ink);transform:scaleX(0);transform-origin:right;transition:transform .45s var(--ez)}
.nav-mid a:hover,.nav-mid a[aria-current]{color:var(--ink)}
.nav-mid a:hover::after,.nav-mid a[aria-current]::after{transform:scaleX(1);transform-origin:left}
.nav .nav-r{display:flex;gap:8px;align-items:center}
@media(max-width:1080px){.nav-mid{display:none}}
@media(max-width:440px){.nav .nav-r .btn-line{display:none}}

/* ---------- buttons: round with one sharp corner, a blue sweep on hover ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:44px;padding:0 20px;border:0;border-radius:100px 100px 100px 4px;font-family:var(--sans);font-weight:600;font-size:14.5px;letter-spacing:-.01em;
  position:relative;overflow:hidden;isolation:isolate;white-space:nowrap;text-decoration:none;cursor:pointer;transition:color .35s var(--ez),box-shadow .3s}
.btn::before{content:"";position:absolute;inset:0;z-index:-1;border-radius:inherit;background:var(--blue);transform:translateY(101%);transition:transform .5s var(--ez)}
.btn:hover::before{transform:none}
.btn:active{transform:none}
.btn-ink,.btn-dark{background:var(--ink);color:#fff}
.btn-ink:hover,.btn-dark:hover{background:var(--ink);box-shadow:0 12px 28px -10px rgba(27,61,245,.6)}
.btn-line,.btn-soft{background:transparent;box-shadow:inset 0 0 0 1px var(--line);color:var(--ink)}
.btn-line:hover,.btn-soft:hover{background:transparent;color:#fff;box-shadow:none}
.btn svg{width:16px;height:16px;transition:transform .4s var(--ez)}
.btn:hover svg{transform:translateX(3px)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:clamp(56px,9vh,110px) 0 clamp(48px,7vh,80px);border-bottom:1px solid var(--line)}
.hero::before{content:"";position:absolute;inset:0;height:auto;opacity:1;pointer-events:none;
  background:linear-gradient(var(--line-2) 1px,transparent 1px) 0 0/100% 96px,linear-gradient(90deg,var(--line-2) 1px,transparent 1px) 0 0/96px 100%;
  -webkit-mask:radial-gradient(70% 80% at 70% 30%,#000 15%,transparent 75%);mask:radial-gradient(70% 80% at 70% 30%,#000 15%,transparent 75%)}
/* section labels: (01) —— Name, in mono */
.eyebrow,.hero .eyebrow{display:flex;align-items:center;gap:12px;width:max-content;max-width:100%;background:none;border:0;box-shadow:none;padding:0;border-radius:0;
  font:500 11px/1.3 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2)}
.eyebrow .n{color:var(--blue)}
.eyebrow .ln{width:36px;height:1px;background:var(--line);flex:none}
.hero h1,body > header h1{font-family:var(--sans);font-weight:500;font-size:clamp(44px,7vw,112px);line-height:1.02;letter-spacing:-.055em;margin-top:26px;max-width:15ch;text-wrap:balance}
.hero .lead{font-size:clamp(17px,1.35vw,20px);line-height:1.5;color:var(--ink-2);max-width:52ch;margin-top:26px;letter-spacing:-.01em}

/* the step cards under the hero (guide journey, AI loop) */
.jstep,.lp{border:1px solid var(--line);border-radius:18px 18px 18px 5px;box-shadow:none;background:var(--paper);transition:transform .35s var(--ez),border-color .25s,box-shadow .35s}
.jstep:hover{transform:translateY(-3px);border-color:var(--ink);box-shadow:0 24px 40px -30px rgba(13,14,17,.4)}
.jstep .ji{border-radius:12px 12px 12px 3px;background:var(--paper-2)}
.jstep .jn,.lp .n,.ch-head .cn,.step-n{font-family:var(--mono);color:var(--blue);font-weight:500;letter-spacing:.04em}
.jstep b,.lp h3{letter-spacing:-.02em}
.jstep:not(:last-child)::after{height:1px;opacity:.5}
.facts .fact,.fact{border:1px solid var(--line);box-shadow:none;border-radius:100px 100px 100px 4px;color:var(--ink)}
.plans-legend{font-size:13px}

/* ---------- contents and chapters ---------- */
.toc{top:calc(var(--navh) + var(--top) + 22px)}
.toc .grp,.toc h4,.toc .lbl,.toc > b{display:block;font:500 10.5px/1.3 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.toc a{border-left-color:var(--line)}
.toc a.on{border-left-color:var(--blue);color:var(--ink)}
.toc .cta{border-radius:14px 14px 14px 4px;background:var(--paper-2)}
.chips{top:calc(var(--navh) + var(--top))}
.chips a.on{background:var(--ink)}
.ch-head{display:flex;align-items:flex-end;gap:18px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.ch-head .cn{font-size:11px;align-self:flex-start;margin-top:.9em;white-space:nowrap}
.ch-head .cn::before{content:"("}.ch-head .cn::after{content:")"}
.ch-head h2{font-weight:500;font-size:clamp(34px,4.2vw,60px);line-height:1.04;letter-spacing:-.05em}
.ch-head p{color:var(--ink-2)}
.ftext h3{font-weight:600;letter-spacing:-.03em}
.feat{border-bottom-color:var(--line-2)}
.stage{border-radius:22px 22px 22px 6px;border:1px solid var(--line-2);
  background:linear-gradient(var(--line-2) 1px,transparent 1px) 0 0/100% 48px,linear-gradient(90deg,var(--line-2) 1px,transparent 1px) 0 0/48px 100%,var(--paper-2)}
.stage .try{font-family:var(--mono);font-weight:500;font-size:10.5px;letter-spacing:.05em;text-transform:uppercase;border-radius:100px 100px 100px 3px}
.tip{border-radius:12px 12px 12px 4px}
.matrix{border-color:var(--line);border-radius:16px 16px 16px 5px}
.matrix .grp td{font-family:var(--mono);font-weight:500;letter-spacing:.06em}

/* ---------- the closing call to action ---------- */
.final{margin-top:96px;padding:clamp(40px,7vh,72px) 0 8px;border-radius:0;border-top:1px solid var(--line);background:none;color:var(--ink);text-align:left;box-shadow:none}
.final::before,.final::after{display:none}
.final h2{font-weight:500;font-size:clamp(40px,5.6vw,84px);line-height:1.04;letter-spacing:-.055em;color:var(--ink);max-width:14ch}
.final p{color:var(--ink-2);margin-top:14px;font-size:clamp(16px,1.3vw,19px)}
.final .row{justify-content:flex-start;margin-top:28px}
.final .btn-dark{background:var(--ink);color:#fff}
.final .btn-soft{color:var(--ink);box-shadow:inset 0 0 0 1px var(--line)}
.final .btn-soft:hover{color:#fff}

/* ---------- footer (the home page's) ---------- */
footer{border-top:1px solid var(--line);padding:8vh 0 0;margin-top:0;font-size:15px;color:var(--ink);overflow:hidden}
footer .wrap{display:block;max-width:1440px;padding:0 var(--pad)}
footer a{margin:0;color:var(--ink);text-decoration:none}
.foot{display:grid;grid-template-columns:minmax(0,1.2fr) repeat(3,minmax(0,.6fr));gap:4vw}
.foot p{color:var(--ink-2);margin-top:14px;font-size:15px}
.foot h3{font:500 11px/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);margin-bottom:18px}
.foot .col a{display:block;padding:5px 0;font-size:15px;color:var(--ink);width:max-content;background:linear-gradient(currentColor,currentColor) 0 100%/0 1px no-repeat;transition:background-size .4s var(--ez)}
.foot .col a:hover{background-size:100% 1px}
.fbar{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:8vh;padding:18px 0 26px;font:500 11px/1 var(--mono);letter-spacing:.05em;text-transform:uppercase;color:var(--ink-3)}
@media(max-width:900px){.foot{grid-template-columns:1fr 1fr}.foot>div:first-child{grid-column:1/-1}}

/* ---------- legal pages: one readable column ---------- */
.legal-hero{padding-top:clamp(48px,9vh,100px);padding-bottom:clamp(28px,5vh,48px)}
.legal-hero h1{font-weight:500;font-size:clamp(44px,6.4vw,96px);line-height:1.02;letter-spacing:-.055em;margin-top:24px}
.legal-hero .updated{font:500 11px/1 var(--mono);letter-spacing:.05em;text-transform:uppercase;color:var(--ink-3);margin-top:22px}
main.legal h2{font-weight:600;font-size:22px;letter-spacing:-.03em;margin:48px 0 12px}
main.legal p,main.legal li{color:#33363C}
main.legal .note{border-radius:16px 16px 16px 4px;background:var(--paper-2);border-left:0;font-size:16px}
main.legal a{color:var(--blue)}

@media(prefers-reduced-motion:reduce){.btn::before,.nav-mid a::after{transition:none}}

/* guide and docs: the same edges as the nav and the home page */
.hero > .wrap,.docs.wrap{max-width:1440px;padding-left:var(--pad);padding-right:var(--pad)}
.docs{gap:clamp(40px,5vw,80px)}
.hero h1,.hero .lead{max-width:none}
.hero h1{max-width:15ch}
.hero .lead{max-width:56ch}
.ch-head + .sub{color:var(--ink-2);margin-top:14px;font-size:16px;max-width:62ch}
@media(max-width:980px){.chips{margin-left:calc(-1 * var(--pad));margin-right:calc(-1 * var(--pad));padding-left:var(--pad);padding-right:var(--pad)}}
.eyebrow .n,.eyebrow .ln{display:none}