/* Shared across pages: tokens, base type, buttons, header, sections, footer, reveals. */
:root{
  --f-sans:"Geist",ui-sans-serif,system-ui,sans-serif;
  --f-mono:"Geist Mono",ui-monospace,monospace;

  --t-display:clamp(2.6rem,1.6rem + 4vw,4.9rem);
  --t-h2:clamp(1.9rem,1.35rem + 2.2vw,3.1rem);
  --t-h3:clamp(1.125rem,1.05rem + .35vw,1.3125rem);
  --t-lede:clamp(1.0625rem,1rem + .35vw,1.25rem);

  /* Sampled from the captures. */
  --bg:#15161b;
  --surface:#1e2026;
  --surface-2:#27282f;
  --surface-3:#33343a;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --text:#ececf0;
  --text-2:#b4b6bf;
  --text-3:#8a8d98;

  /* Product accent and the entity palette the app uses for highlights. */
  --accent:#57bbf6;
  --accent-deep:#3aa6e8;
  --on-accent:#08141d;
  --e-blue:#5b9dff;
  --e-orange:#f5a524;
  --e-green:#4ade80;
  --e-purple:#c084fc;
  --e-pink:#f472b6;
  --conflict:#f87171;

  --r:8px;
  --r-lg:14px;
  --r-window:14px;
  --matte:clamp(6px,.8vw,10px);
  --capture:1917 / 884;
  --shell:1240px;
  --wide:1560px;
  --pad:clamp(18px,4vw,56px);
  --ease:cubic-bezier(.16,1,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:80px;scrollbar-color:#3a3c44 var(--bg)}
body{margin:0;background:var(--bg);color:var(--text-2);font-family:var(--f-sans);font-size:1.0625rem;line-height:1.6;overflow-x:hidden}
/* Reveal animations start content offset sideways; clip it here so phones cannot pan into the overflow (body overflow alone does not stop that on mobile). */
main{overflow-x:clip}
img,video{display:block;max-width:100%}
a{color:inherit}
::selection{background:var(--accent);color:var(--on-accent)}
:focus{outline:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.skip{position:absolute;left:-9999px;top:0;z-index:99;background:var(--accent);color:var(--on-accent);padding:10px 16px;border-radius:var(--r)}
.skip:focus{left:12px;top:12px}
.shell{max-width:var(--shell);margin:0 auto;padding-inline:var(--pad)}
.wide{max-width:var(--wide);margin:0 auto;padding-inline:clamp(14px,2.4vw,40px)}
.mono{font-family:var(--f-mono);font-size:.8125rem;font-variant-numeric:tabular-nums}

.display{margin:0;font-weight:600;font-size:var(--t-display);line-height:1.02;letter-spacing:-.035em;color:var(--text);text-wrap:balance}
.h2{margin:0;font-weight:600;font-size:var(--t-h2);line-height:1.08;letter-spacing:-.03em;color:var(--text);max-width:20ch;text-wrap:balance}
.h3{margin:0;font-weight:600;font-size:var(--t-h3);line-height:1.25;letter-spacing:-.012em;color:var(--text);text-wrap:balance}
.lede{margin:0;font-size:var(--t-lede);line-height:1.55;max-width:50ch;text-wrap:pretty}
/* Entity highlights, the way the app marks them in source text. */
.ent{font-weight:500}
.ent--b{color:var(--e-blue)}.ent--o{color:var(--e-orange)}.ent--g{color:var(--e-green)}.ent--p{color:var(--e-purple)}

.btn{display:inline-flex;align-items:center;gap:8px;height:46px;padding:0 20px;border-radius:var(--r);border:1px solid transparent;
  font-weight:500;font-size:.9375rem;text-decoration:none;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .12s var(--ease)}
.btn:active{transform:translateY(1px)}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--accent);color:var(--on-accent)}
.btn-primary:hover{background:var(--accent-deep)}
.btn-primary[disabled]{opacity:.6;cursor:progress}
.btn-ghost{border-color:var(--line-2);color:var(--text);background:var(--surface)}
.btn-ghost:hover{background:var(--surface-2)}
.btn-sm{height:36px;padding:0 14px;font-size:.875rem}

/* ---------- header ---------- */
.hdr{position:sticky;top:0;z-index:50;background:rgba(21,22,27,.82);backdrop-filter:blur(14px) saturate(140%);border-bottom:1px solid var(--line)}
.hdr__in{display:flex;align-items:center;gap:clamp(16px,3vw,40px);height:64px}
.logo{display:block;width:140px;aspect-ratio:310/46;background:var(--text);
  -webkit-mask:url(./insight-logo.svg) no-repeat center/contain;mask:url(./insight-logo.svg) no-repeat center/contain}
.nav{display:flex;gap:2px;margin-left:auto}
.nav a{padding:7px 12px;border-radius:6px;text-decoration:none;font-size:.9375rem;font-weight:500;color:var(--text-3);transition:color .2s var(--ease),background .2s var(--ease)}
.nav a:hover{color:var(--text);background:var(--surface)}
.nav a[aria-current="true"],.nav a[aria-current="page"]{color:var(--text);background:var(--surface-2)}
.menu-toggle{display:none}


/* ---------- sections ---------- */
.sec{padding-block:clamp(88px,11vw,150px)}
.sec + .sec{border-top:1px solid var(--line)}
.sec__head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:clamp(20px,4vw,64px);align-items:end;margin-bottom:clamp(40px,6vw,72px)}

.foot{border-top:1px solid var(--line);padding-block:28px}
.foot__in{display:flex;flex-wrap:wrap;gap:16px 28px;align-items:center;justify-content:space-between}
.foot .logo{width:92px;background:var(--text-3)}
.foot__links{display:flex;flex-wrap:wrap;gap:6px 22px;font-size:.875rem;color:var(--text-3)}
.foot__links a{text-decoration:none}
.foot__links a:hover{color:var(--text)}

[data-reveal]{opacity:0;transform:translateY(32px);transition:opacity .9s var(--ease),transform .9s var(--ease),clip-path .9s var(--ease)}
.h2[data-reveal]{clip-path:inset(0 0 100% 0)}
.h2[data-reveal].is-in{clip-path:inset(0 0 -20% 0)}
[data-reveal].is-in{opacity:1;transform:none}
@supports (animation-timeline:view()){
  [data-reveal]{animation:reveal linear both;animation-timeline:view();animation-range:entry 6% cover 18%;transition:none}
  @keyframes reveal{from{opacity:0;transform:translateY(32px)}to{opacity:1;transform:none}}
  /* Headings rise out of a mask, line by line in feel. */
  .h2[data-reveal]{animation-name:heading-rise;animation-range:entry 4% cover 22%}
  @keyframes heading-rise{from{opacity:0;transform:translateY(60%);clip-path:inset(0 0 100% 0)}to{opacity:1;transform:none;clip-path:inset(0 0 -20% 0)}}
  /* A section's supporting line arrives just after its heading. */
  .sec__head > [data-reveal]:nth-child(2){animation-range:entry 12% cover 28%}
}
/* Staggered reveals: the children of [data-stagger] arrive one after another,
   in reading order, as the group scrolls in. */
[data-stagger] > *{opacity:0;transform:translateY(48px) scale(.95);transition:opacity .9s var(--ease),transform .9s var(--ease);transition-delay:calc(var(--i,0) * 90ms)}
[data-stagger] > .is-in{opacity:1;transform:none}
[data-stagger] > :nth-child(2){--i:1}[data-stagger] > :nth-child(3){--i:2}[data-stagger] > :nth-child(4){--i:3}
[data-stagger] > :nth-child(5){--i:4}[data-stagger] > :nth-child(6){--i:5}[data-stagger] > :nth-child(n+7){--i:6}
@supports (animation-timeline:view()){
  [data-stagger] > *{animation:stagger-in linear both;animation-timeline:view();
    animation-range:entry calc(4% + var(--i,0) * 5%) cover calc(24% + var(--i,0) * 5%);transition:none}
  @keyframes stagger-in{from{opacity:0;transform:translateY(48px) scale(.95)}to{opacity:1;transform:none}}
}

@media (max-width:900px){
  .menu-toggle{display:inline-flex;margin-left:auto;align-items:center;justify-content:center;width:42px;height:42px;border:1px solid var(--line-2);border-radius:var(--r);background:none;cursor:pointer;color:var(--text)}
  .menu-toggle svg{width:20px;height:20px}
  .hdr__in > .btn{display:none}
  .nav{position:absolute;left:0;right:0;top:100%;margin:0;flex-direction:column;gap:0;padding:8px var(--pad) 16px;background:var(--bg);border-bottom:1px solid var(--line);
    opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s}
  .hdr[data-open] .nav{opacity:1;visibility:visible;transform:none}
  .nav a:not(.btn){padding:14px 8px;border-radius:0;border-bottom:1px solid var(--line)}
  .nav .btn{display:flex;justify-content:center;height:48px;margin-top:18px;padding:0 20px;font-size:1rem;color:var(--on-accent);border-radius:var(--r)}
  .nav .btn:hover{background:var(--accent-deep)}
  .sec__head{grid-template-columns:minmax(0,1fr)}
}
@media (min-width:901px){ .nav .btn{display:none} }
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  [data-reveal],[data-stagger] > *{opacity:1 !important;transform:none !important;clip-path:none !important}
}

/* ---------- legal pages (privacy, terms) ---------- */
.todo{text-decoration:underline dashed var(--e-orange);text-underline-offset:4px;text-decoration-thickness:1px}
.legal{padding-block:clamp(64px,10vh,120px) clamp(72px,10vw,128px)}
.legal__head{max-width:62ch;padding-bottom:28px;margin-bottom:36px;border-bottom:1px solid var(--line)}
.legal__head .display{font-size:clamp(2.2rem,1.6rem + 2.6vw,3.6rem)}
.legal__meta{margin:16px 0 0;font-family:var(--f-mono);font-size:.8125rem;color:var(--text-3)}
.legal__body{max-width:68ch}
.legal__body h2{margin:44px 0 12px;font-size:1.25rem;font-weight:600;letter-spacing:-.012em;color:var(--text)}
.legal__body h2:first-child{margin-top:0}
.legal__body p,.legal__body ul{margin:0 0 14px}
.legal__body ul{padding-left:1.2em}
.legal__body li{margin-bottom:6px}
.legal__body strong{color:var(--text);font-weight:500}
.legal__body a{color:var(--accent);text-underline-offset:3px}