/* TrueThink — shared stylesheet */

:root{
  --ink:#0C1A15;
  --pine:#173328;
  --mineral:#DFE2D9;
  --bone:#EDEFE8;
  --chalk:#F6F7F2;
  --peri:#AEB8F5;
  --peri-deep:#4B57BE;
  --graphite:#68706A;
  --rule-d:rgba(246,247,242,.16);
  --rule-l:rgba(12,26,21,.13);
  --pad:clamp(1.25rem,5vw,5.5rem);
  --nav-h:4.5rem;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"IBM Plex Sans",system-ui,sans-serif;
  background:var(--bone);
  color:var(--ink);
  font-size:clamp(1rem,.5vw + .88rem,1.06rem);
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--peri-deep);outline-offset:3px}
.dark :focus-visible,.hero :focus-visible{outline-color:var(--peri)}

/* ---------------- type ---------------- */
.serif,h1,h2,.h2,.stat-n,.quote{
  font-family:"Newsreader",serif;font-weight:300;letter-spacing:-.018em;line-height:1.04;
}
h1{font-size:clamp(2.9rem,7.6vw,6.6rem)}
h2,.h2{font-size:clamp(2.1rem,4.8vw,3.9rem);line-height:1.08;max-width:19ch}
h3{font-family:"IBM Plex Sans",sans-serif;font-weight:600;font-size:1.06rem;line-height:1.38;letter-spacing:-.004em}
.mono{font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.2em;text-transform:uppercase}
.eyebrow{font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.26em;text-transform:uppercase;color:var(--graphite);display:block;margin-bottom:1.8rem}
.dark .eyebrow{color:var(--peri)}
.lede{font-size:clamp(1.06rem,1.3vw,1.3rem);line-height:1.55;max-width:54ch;color:var(--graphite)}
.dark .lede{color:rgba(246,247,242,.7)}
.muted{color:var(--graphite)}
.dark .muted{color:rgba(246,247,242,.62)}
.quote{font-style:italic;font-size:clamp(1.3rem,2.3vw,1.9rem);line-height:1.3}

/* ---------------- nav ---------------- */
.nav{
  position:fixed;inset:0 0 auto 0;z-index:80;height:var(--nav-h);
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:0 var(--pad);
  background:transparent;transition:background .4s,color .3s,border-color .4s;
  border-bottom:1px solid transparent;
}
.nav.stuck{background:rgba(237,239,232,.92);backdrop-filter:blur(14px);border-bottom-color:var(--rule-l)}
body.nav-light .nav{color:var(--chalk)}
body.nav-light .nav.stuck{background:rgba(12,26,21,.9);border-bottom-color:var(--rule-d)}
.brand{font-family:"IBM Plex Mono",monospace;font-size:.82rem;letter-spacing:.28em;text-transform:uppercase;font-weight:500}
.nav-links{display:flex;gap:1.9rem;list-style:none;align-items:center}
.nav-links a{font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;opacity:.6;transition:opacity .2s;padding:.4rem 0}
.nav-links a:hover{opacity:1}
.nav-links a[aria-current]{opacity:1;border-bottom:1px solid currentColor}
.nav-cta{
  font-family:"IBM Plex Mono",monospace;font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;
  border:1px solid currentColor;padding:.62rem 1.1rem;opacity:1!important;transition:background .25s,color .25s;
}
.nav-cta:hover{background:var(--ink);color:var(--chalk);border-color:var(--ink)}
body.nav-light .nav-cta:hover{background:var(--peri);color:var(--ink);border-color:var(--peri)}
.burger{display:none;background:none;border:0;color:inherit;font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;cursor:pointer;padding:.5rem}
@media (max-width:900px){
  .nav-links{
    position:fixed;inset:var(--nav-h) 0 auto 0;background:var(--ink);color:var(--chalk);
    flex-direction:column;align-items:flex-start;gap:0;padding:1.4rem var(--pad) 2.4rem;
    transform:translateY(-120%);transition:transform .45s cubic-bezier(.3,.8,.3,1);
  }
  .nav-links.open{transform:none}
  .nav-links li{width:100%;border-bottom:1px solid var(--rule-d)}
  .nav-links a{display:block;padding:1.1rem 0;font-size:.8rem;opacity:.85}
  .nav-cta{border:0;padding:1.1rem 0}
  .burger{display:block}
}

/* ---------------- layout ---------------- */
.sec{padding:clamp(4.5rem,10vh,8rem) var(--pad)}
.sec-tight{padding:clamp(3rem,6vh,4.5rem) var(--pad)}
.wrap{max-width:1220px;margin:0 auto}
.dark{background:var(--ink);color:var(--chalk)}
.peri{background:var(--peri);color:var(--ink)}
.bone{background:var(--bone)}
.mineral{background:var(--mineral)}

.split{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:clamp(2rem,6vw,6rem);align-items:start}
.split-r{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(2rem,6vw,6rem);align-items:end}
@media (max-width:900px){.split,.split-r{grid-template-columns:1fr;gap:2.4rem}}

.reveal{opacity:0;transform:translateY(20px);transition:opacity .8s cubic-bezier(.2,.7,.3,1),transform .8s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ---------------- hero ---------------- */
.hero{
  position:relative;min-height:100svh;background:var(--ink);color:var(--chalk);
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:calc(var(--nav-h) + 2rem) var(--pad) clamp(2.5rem,6vh,4rem);
  overflow:hidden;
}
#graph{position:absolute;inset:0;width:100%;height:100%;opacity:.85}
.hero .wrap{position:relative;z-index:2;width:100%}
.hero h1{max-width:15ch}
.hero h1 em{font-style:normal;color:var(--peri)}
.hero-foot{
  display:flex;justify-content:space-between;align-items:flex-end;gap:2rem;flex-wrap:wrap;
  margin-top:clamp(2rem,5vh,3.4rem);padding-top:1.5rem;border-top:1px solid var(--rule-d);
}
.hero-foot p{max-width:44ch;color:rgba(246,247,242,.72)}
.cue{font-family:"IBM Plex Mono",monospace;font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--peri);white-space:nowrap}

/* page header for inner pages */
.phead{
  background:var(--ink);color:var(--chalk);
  padding:calc(var(--nav-h) + clamp(4rem,11vh,7.5rem)) var(--pad) clamp(3.5rem,8vh,6rem);
}
.phead h1{font-size:clamp(2.5rem,6vw,5rem);max-width:16ch}
.phead .lede{margin-top:1.8rem}
.phead .idx{font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.24em;text-transform:uppercase;color:var(--peri);display:block;margin-bottom:1.6rem}

/* ---------------- marquee ---------------- */
.marquee{overflow:hidden;border-block:1px solid var(--rule-l);padding:1.1rem 0;background:var(--mineral)}
.marquee-in{display:flex;gap:3rem;width:max-content;animation:slide 46s linear infinite}
.marquee span{font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--graphite);white-space:nowrap}
.marquee span::after{content:"·";margin-left:3rem;color:var(--peri-deep)}
@keyframes slide{to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.marquee-in{animation:none}}

/* ---------------- cards / lists ---------------- */
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1.4rem,3vw,2.8rem)}
@media (max-width:900px){.trio{grid-template-columns:1fr;gap:2.2rem}}
.trio>div{display:flex;flex-direction:column;gap:.85rem}
.trio .mono{color:var(--peri-deep)}
.dark .trio .mono{color:var(--peri)}
.trio .limit{margin-top:.3rem;padding-top:1rem;border-top:1px solid var(--rule-l);color:var(--graphite);font-size:.97rem}
.dark .trio .limit{border-top-color:var(--rule-d);color:rgba(246,247,242,.6)}

.numlist{list-style:none}
.numlist li{display:grid;grid-template-columns:2.9rem 1fr;gap:1rem;align-items:baseline;padding:1.9rem 0;border-bottom:1px solid var(--rule-l)}
.dark .numlist li{border-bottom-color:var(--rule-d)}
.numlist li:last-child{border-bottom:0}
.numlist .n{font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.1em;color:var(--peri-deep)}
.dark .numlist .n{color:var(--peri)}
.numlist p{margin-top:.55rem}

.phases{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--rule-l)}
.dark .phases{border-top-color:var(--rule-d)}
.phases>div{padding:2rem 1.4rem 0 0;position:relative;display:flex;flex-direction:column;gap:.65rem}
.phases>div::before{content:"";position:absolute;top:-4px;left:0;width:7px;height:7px;border-radius:50%;background:var(--peri-deep)}
.dark .phases>div::before{background:var(--peri)}
.phases>div:last-child::before{background:var(--ink);box-shadow:0 0 0 1px var(--ink)}
.dark .phases>div:last-child::before{background:var(--chalk);box-shadow:none}
.phases .dur{font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.14em;color:var(--graphite)}
.dark .phases .dur{color:rgba(246,247,242,.55)}
.phases p{font-size:.96rem;color:var(--graphite)}
.dark .phases p{color:rgba(246,247,242,.62)}
@media (max-width:900px){
  .phases{grid-template-columns:1fr;border-top:0}
  .phases>div{padding:1.6rem 0 0 1.5rem;border-left:1px solid var(--rule-l)}
  .dark .phases>div{border-left-color:var(--rule-d)}
  .phases>div::before{top:1.6rem;left:-4px}
}

.stack>div{display:grid;grid-template-columns:15rem 1fr;gap:clamp(1.5rem,4vw,3.5rem);padding:2.2rem 0;border-top:1px solid var(--rule-l);align-items:start}
.stack>div:last-child{border-bottom:1px solid var(--rule-l)}
.stack h3{font-family:"Newsreader",serif;font-weight:300;font-size:1.65rem;letter-spacing:-.012em}
.stack .dur{font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.14em;color:var(--graphite);margin-top:.45rem}
.stack p+p{margin-top:.7rem}
@media (max-width:900px){.stack>div{grid-template-columns:1fr;gap:1rem}}

.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1.4rem,3vw,2.6rem)}
.stats>div{border-top:1px solid var(--rule-d);padding-top:1.2rem}
.stat-n{font-size:clamp(2.4rem,4.6vw,3.6rem);color:var(--peri);line-height:1}
.stats p{font-size:.94rem;color:rgba(246,247,242,.6);margin-top:.6rem}
@media (max-width:900px){.stats{grid-template-columns:1fr}}

.frames{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.frame{aspect-ratio:4/3;border:1px dashed var(--peri-deep);display:grid;place-items:center;text-align:center;padding:1rem}
.frame span{font-family:"IBM Plex Mono",monospace;font-size:.66rem;letter-spacing:.1em;color:var(--peri-deep);line-height:1.8}
@media (max-width:900px){.frames{grid-template-columns:1fr}}

/* tables */
table.tt{width:100%;border-collapse:collapse}
table.tt th{text-align:left;font-family:"IBM Plex Mono",monospace;font-weight:400;font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--graphite);padding-bottom:.9rem;border-bottom:1px solid var(--rule-l)}
table.tt td{padding:1.3rem 1.4rem 1.3rem 0;border-bottom:1px solid var(--rule-l);font-size:1rem;line-height:1.45;vertical-align:top}
table.tt td:first-child{font-weight:600;width:24%}
table.tt tr.hl td:first-child{color:var(--peri-deep)}
@media (max-width:900px){
  table.tt,table.tt tbody,table.tt tr,table.tt td{display:block;width:100%}
  table.tt thead{display:none}
  table.tt tr{padding:1.2rem 0;border-bottom:1px solid var(--rule-l)}
  table.tt td{border:0;padding:.15rem 0;width:auto}
  table.tt td:first-child{width:auto;margin-bottom:.3rem}
}

/* pricebox */
.pricebox{background:var(--ink);color:var(--chalk);padding:clamp(1.7rem,3vw,2.6rem);display:flex;flex-direction:column;gap:.85rem}
.pricebox .amt{font-family:"Newsreader",serif;font-weight:300;font-size:clamp(2.1rem,3.6vw,3rem);line-height:1}
.pricebox p{color:rgba(246,247,242,.66);font-size:.96rem}
.pricebox .mono{color:var(--peri)}

/* deliver list */
.deliver{list-style:none}
.deliver li{display:grid;grid-template-columns:2rem 1fr;gap:.5rem;padding:1.15rem 0;border-bottom:1px solid var(--rule-l)}
.deliver li:first-child{border-top:1px solid var(--rule-l)}
.deliver .k{font-family:"IBM Plex Mono",monospace;font-size:.68rem;color:var(--peri-deep);letter-spacing:.1em;padding-top:.4rem}

/* faq */
.faq{border-top:1px solid var(--rule-l)}
.faq details{border-bottom:1px solid var(--rule-l)}
.faq summary{list-style:none;cursor:pointer;padding:1.5rem 2.6rem 1.5rem 0;font-size:1.05rem;font-weight:500;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:.4rem;top:50%;transform:translateY(-50%);font-family:"IBM Plex Mono",monospace;color:var(--peri-deep);font-size:1.15rem}
.faq details[open] summary::after{content:"–"}
.faq .a{padding:0 0 1.7rem;color:var(--graphite);max-width:64ch}

/* form */
.form{display:grid;gap:1.4rem;max-width:34rem}
.field{display:flex;flex-direction:column;gap:.5rem}
.field label{font-family:"IBM Plex Mono",monospace;font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--graphite)}
.field input,.field textarea,.field select{
  font-family:inherit;font-size:1rem;color:var(--ink);
  background:transparent;border:0;border-bottom:1px solid var(--rule-l);
  padding:.7rem 0;border-radius:0;
}
.field textarea{min-height:7rem;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{outline:0;border-bottom-color:var(--peri-deep)}
.btn{
  justify-self:start;font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;
  background:var(--ink);color:var(--chalk);border:1px solid var(--ink);padding:1rem 2rem;cursor:pointer;transition:background .25s,color .25s;
}
.btn:hover{background:transparent;color:var(--ink)}
.hp{position:absolute;left:-9999px}

/* big cta band */
.band{background:var(--peri);color:var(--ink);padding:clamp(3.5rem,9vh,6.5rem) var(--pad)}
.band .h2{max-width:16ch}
.band .row{display:flex;justify-content:space-between;align-items:flex-end;gap:2rem;flex-wrap:wrap;margin-top:2.2rem}
.band-btn{font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;border:1px solid var(--ink);padding:1.05rem 2.1rem;transition:background .25s,color .25s;display:inline-block}
.band-btn:hover{background:var(--ink);color:var(--peri)}

/* footer */
.foot{background:var(--ink);color:rgba(246,247,242,.55);padding:clamp(3rem,7vh,4.5rem) var(--pad) 2rem}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.5rem;padding-bottom:2.6rem;border-bottom:1px solid var(--rule-d)}
@media (max-width:900px){.foot-top{grid-template-columns:1fr;gap:2rem}}
.foot h4{font-family:"IBM Plex Mono",monospace;font-size:.64rem;letter-spacing:.2em;text-transform:uppercase;color:var(--peri);margin-bottom:1.1rem;font-weight:400}
.foot ul{list-style:none;display:flex;flex-direction:column;gap:.6rem}
.foot a:hover{color:var(--chalk)}
.foot .claim{font-family:"Newsreader",serif;font-weight:300;font-size:1.55rem;line-height:1.2;color:var(--chalk);max-width:22ch;letter-spacing:-.012em}
.foot-btm{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding-top:1.6rem;font-family:"IBM Plex Mono",monospace;font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;color:rgba(246,247,242,.35)}

/* next-page pager */
.pager{display:flex;justify-content:space-between;align-items:center;gap:1.5rem;padding:2.2rem var(--pad);border-top:1px solid var(--rule-l);background:var(--mineral);flex-wrap:wrap}
.pager .lbl{font-family:"IBM Plex Mono",monospace;font-size:.64rem;letter-spacing:.2em;text-transform:uppercase;color:var(--graphite)}
.pager .nxt{font-family:"Newsreader",serif;font-weight:300;font-size:clamp(1.5rem,3vw,2.2rem);letter-spacing:-.012em}
.pager .nxt:hover{color:var(--peri-deep)}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
}