:root{
  --bg:#EDF0EA;
  --bg-alt:#E0E6DE;
  --ink:#1A2422;
  --muted:#4E5D59;
  --line:#C3CCC3;
  --deep:#12332E;
  --on-deep:#EDF0EA;
  --on-deep-muted:#A9BDB6;
  --brass:#D0A441;
  --brass-ink:#7A5B12;
  --fog:#9DBFCC;
  --link:#1C5A4F;
  --focus:#1C5A4F;
  --btn-bg:#D0A441;
  --btn-ink:#1A2422;
  --ph-bg:#D5DDD4;
  --ph-line:rgba(18,51,46,.10);
  --ph-ink:#4E5D59;
  --serif:"Young Serif",Georgia,"Times New Roman",serif;
  --sans:"Public Sans","Helvetica Neue",Arial,sans-serif;
  box-sizing:border-box;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0F1F1C;--bg-alt:#152926;--ink:#E6ECE6;--muted:#9FB2AC;--line:#2B403B;
    --deep:#0A1614;--on-deep-muted:#9FB2AC;--brass:#D9AE4E;--brass-ink:#E0B85A;
    --link:#8CCFC0;--focus:#D9AE4E;--btn-bg:#D9AE4E;--btn-ink:#0F1F1C;
    --ph-bg:#1A302C;--ph-line:rgba(217,174,78,.12);--ph-ink:#9FB2AC;
  }
}
:root[data-theme="dark"]{
  --bg:#0F1F1C;--bg-alt:#152926;--ink:#E6ECE6;--muted:#9FB2AC;--line:#2B403B;
  --deep:#0A1614;--on-deep-muted:#9FB2AC;--brass:#D9AE4E;--brass-ink:#E0B85A;
  --link:#8CCFC0;--focus:#D9AE4E;--btn-bg:#D9AE4E;--btn-ink:#0F1F1C;
  --ph-bg:#1A302C;--ph-line:rgba(217,174,78,.12);--ph-ink:#9FB2AC;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-padding-top:calc(var(--header-h,80px) + 24px);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:1.075rem;line-height:1.65}
h1,h2{font-family:var(--serif);font-weight:400;line-height:1.05;letter-spacing:-0.01em;margin:0 0 .5em}
h1{font-size:clamp(2.5rem,6.4vw,5.4rem)}
h2{font-size:clamp(1.9rem,4vw,3rem)}
h3{font-family:var(--sans);font-weight:700;font-size:1.15rem;line-height:1.3;margin:0 0 .5em}
p{margin:0 0 1em;max-width:62ch}
a{color:var(--link);text-underline-offset:3px}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:2px}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:var(--bg);padding:.6rem 1rem;z-index:30}
.skip:focus{left:8px;top:8px}
.wrap{width:min(1120px,100% - 2.5rem);margin-inline:auto}

/* dark bands */
.deep{background:var(--deep);color:var(--on-deep);--ink:var(--on-deep);--muted:var(--on-deep-muted);--line:rgba(237,240,234,.18);--link:var(--brass);--focus:var(--brass);--ph-bg:#1C4640;--ph-line:rgba(208,164,65,.16);--ph-ink:var(--on-deep-muted)}
.alt{background:var(--bg-alt)}

/* header */
/* sticky: slims down once scrolled (.compact, set in site.js). The added margin-bottom
   equals the padding removed, so nothing below the header moves. */
.site-header{--pad:1.1rem;--pad-c:.6rem;position:sticky;top:0;z-index:20;transition:margin-bottom .2s ease,box-shadow .2s ease}
.site-header .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.5rem 2rem;padding:var(--pad) 0;transition:padding .2s ease}
.site-header.compact{margin-bottom:calc(2 * (var(--pad) - var(--pad-c)));box-shadow:0 1px 0 var(--line),0 6px 16px -8px rgba(0,0,0,.4)}
.site-header.compact .wrap{padding:var(--pad-c) 0}
@media (prefers-reduced-motion:reduce){.site-header,.site-header .wrap{transition:none}}
.brand{display:inline-flex;align-items:center;gap:.65rem;font-family:var(--serif);font-size:1.6rem;color:var(--ink);text-decoration:none;-webkit-text-stroke:.016em currentColor}
.brand svg{flex:none;width:31px;height:21px}
.nav-row{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem 1.75rem}
nav ul{display:flex;flex-wrap:wrap;gap:.25rem 1.5rem;list-style:none;margin:0;padding:0}
nav a{font-weight:600;font-size:.98rem;color:var(--ink);text-decoration:none;padding:.35rem 0;border-bottom:2px solid transparent}
nav a:hover{border-bottom-color:var(--line)}
nav a[aria-current="page"]{border-bottom-color:var(--brass)}

.btn{display:inline-block;font-family:var(--sans);font-weight:700;font-size:1rem;text-decoration:none;padding:.85rem 1.35rem;border-radius:3px;border:2px solid var(--btn-bg);background:var(--btn-bg);color:var(--btn-ink);cursor:pointer}
.btn:hover{filter:brightness(1.07)}
.btn.ghost{background:transparent;color:var(--ink);border-color:currentColor}
.btn.small{padding:.5rem .95rem;font-size:.92rem}
.btn-row{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.75rem}

.page{position:relative}
section{padding:clamp(3.5rem,8vw,6.5rem) 0}
.lead{font-size:1.22rem;color:var(--muted)}

/* the handrail */
.has-rail .wrap{padding-left:40px}
.rail{position:absolute;top:0;left:0;pointer-events:none;overflow:visible;z-index:1}
.rail path{fill:none;stroke:var(--brass);stroke-width:4;stroke-linecap:round;stroke-linejoin:round}
.rail circle{fill:none;stroke:var(--brass);stroke-width:2.5;opacity:.45;transition:fill .3s,opacity .3s}
.rail circle.lit{fill:var(--brass);opacity:1}

/* photo slots: replace the figcaption with <img src alt> when photos are ready */
.ph{position:relative;margin:0;aspect-ratio:var(--ar,4/5);border-radius:2px;overflow:hidden;display:flex;align-items:flex-end;
  background:repeating-linear-gradient(135deg,transparent 0 26px,var(--ph-line) 26px 28px),var(--ph-bg)}
.ph figcaption{font-size:.88rem;line-height:1.4;color:var(--ph-ink);padding:.9rem 1rem}
.ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}

/* home hero */
.hero{padding:clamp(2.5rem,6vw,5rem) 0 clamp(4rem,9vw,7rem)}
.hero .wrap{display:grid;grid-template-columns:1.45fr .75fr;gap:3rem;align-items:end}
.hero h1{margin-bottom:.45em}
.tick{display:block;min-height:2.05em;text-decoration:underline;text-decoration-color:var(--brass);text-decoration-thickness:.07em;text-underline-offset:.14em;transition:opacity .35s,transform .35s}
.tick.out{opacity:0;transform:translateY(.2em)}
@media (prefers-reduced-motion:reduce){.tick{transition:none}}
.hero .lead{max-width:46ch}

/* chat vs agent */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:3.5rem;margin-top:2.5rem}
.compare h3{font-size:1.3rem}
.seq{list-style:none;margin:1.2rem 0 1.2rem;padding:0;display:grid;gap:.5rem}
.seq li{padding:.65rem .95rem;background:var(--bg-alt);border-left:4px solid var(--line);font-size:1rem;max-width:34rem}
.seq li.ag{border-left-color:var(--brass)}
.seq li.you{border-left-color:var(--ink)}
.seq li.you.check{background:var(--fog);color:#132226;border-left-color:#132226}
.compare .note{color:var(--muted);font-size:1rem}

/* stairs */
.stairs{display:grid;grid-template-columns:repeat(6,1fr);column-gap:1.5rem;row-gap:2.2rem;margin-top:3rem}
.step{display:grid;grid-template-columns:auto 1fr;gap:0 1.1rem;border-top:2px solid var(--ink);padding-top:1rem;transition:border-color .3s}
.step.s0{grid-column:1/span 3;grid-row:1}
.step.s1{grid-column:2/span 3;grid-row:2}
.step.s2{grid-column:3/span 3;grid-row:3}
.step.s3{grid-column:4/span 3;grid-row:4}
.step .n{font-family:var(--serif);font-size:3.2rem;line-height:.9;color:var(--muted);transition:color .3s}
.step p{font-size:1rem;margin-bottom:.4em}
.step .meta{font-size:.92rem;color:var(--muted);font-weight:600;margin:0}
.step.lit{border-top-color:var(--brass)}
.step.lit .n{color:var(--brass-ink)}
.stairs .ph{grid-column:1/span 2;grid-row:3/span 2;aspect-ratio:auto;min-height:15rem;margin-top:3.5rem;width:calc(100% - 2.5rem)}
.stairs-foot{margin-top:4rem}

/* rows */
.rows{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.rows li{display:grid;grid-template-columns:.75fr 1.5fr;gap:.3rem 2.5rem;padding:1.3rem 0;border-bottom:1px solid var(--line)}
.rows b{font-family:var(--serif);font-weight:400;font-size:1.45rem;line-height:1.2}
.rows span{color:var(--muted)}
.rows.tight b{font-family:var(--sans);font-weight:700;font-size:1.05rem}
.split{display:grid;grid-template-columns:.8fr 1.4fr;gap:2rem 4rem}

.quote{font-family:var(--serif);font-size:clamp(2rem,5vw,3.9rem);line-height:1.1;max-width:22ch;margin:0 0 2.2rem}

.cols3{display:grid;grid-template-columns:repeat(3,1fr);gap:2.5rem}
.cols3 h3{border-top:2px solid var(--brass);padding-top:1rem}
.two{display:grid;grid-template-columns:1fr 1fr;gap:3rem}

/* how it works page */
.intro{padding:clamp(3rem,7vw,5.5rem) 0}
.intro .lead{max-width:52ch}
.svc{display:grid;grid-template-columns:.8fr 1.4fr;gap:2rem 4rem;padding:3.5rem 0;border-top:1px solid var(--line)}
.svc:first-of-type{border-top:0;padding-top:0}
.svc .num{display:block;font-family:var(--serif);font-size:4rem;line-height:.9;color:var(--muted);margin-bottom:.8rem;transition:color .3s}
.svc.lit .num{color:var(--brass-ink)}
.svc h2{font-size:clamp(1.7rem,3.4vw,2.4rem)}
.svc .ph{margin-top:1.8rem;--ar:4/3}
.svc ul{padding-left:1.2rem;margin:0 0 1.4em}
.svc li{margin-bottom:.5em;max-width:60ch}
dl.facts{margin:0;display:grid;grid-template-columns:auto 1fr;gap:.45rem 1.25rem;font-size:.98rem}
dl.facts dt{font-weight:700}
dl.facts dd{margin:0;color:var(--muted)}
.flows{display:grid;grid-template-columns:1fr 1fr;gap:0 3rem;list-style:none;margin:2rem 0 0;padding:0}
.flows li{padding:1.1rem 0;border-top:1px solid var(--line)}
.flows b{display:block;font-family:var(--serif);font-weight:400;font-size:1.3rem;margin-bottom:.2rem}
.flows span{color:var(--muted);font-size:1rem}
details.faq{border-top:1px solid var(--line);padding:1.1rem 0}
details.faq:last-of-type{border-bottom:1px solid var(--line)}
details.faq summary{font-weight:700;font-size:1.08rem;cursor:pointer}
details.faq p{margin:.7rem 0 0;color:var(--muted)}

/* about */
.about-top .wrap{display:grid;grid-template-columns:1.3fr .8fr;gap:3rem;align-items:end}
.about-top h1{max-width:16ch}
.why-start p:first-child{font-family:var(--serif);font-size:clamp(1.4rem,2.6vw,1.9rem);line-height:1.3;max-width:34ch}
.coach{display:grid;grid-template-columns:minmax(180px,280px) 1fr;gap:2.5rem;align-items:start;margin-top:2rem}
.coach .ph{--ar:4/5}
.coach h3{font-family:var(--serif);font-weight:400;font-size:1.9rem;margin-bottom:.1em}
.coach small{display:block;color:var(--muted);font-size:1rem;font-weight:600}
.note{font-size:.95rem;color:var(--muted)}

/* contact */
.contact{display:grid;grid-template-columns:1.1fr .9fr;gap:3rem;align-items:start}
.contact aside{background:var(--bg-alt);padding:2rem;border-top:3px solid var(--brass)}
.contact aside h2{font-size:1.8rem}
label{display:block;font-weight:600;font-size:.98rem;margin-bottom:.35rem}
input,select,textarea{width:100%;font:inherit;font-size:1.02rem;color:var(--ink);background:var(--bg);border:1px solid var(--muted);border-radius:3px;padding:.7rem .8rem;margin-bottom:1.1rem}
textarea{min-height:9rem;resize:vertical}

footer{padding:2.5rem 0}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem 2rem;font-size:.98rem;color:var(--muted)}

@media (max-width:860px){
  .hero .wrap,.about-top .wrap,.compare,.svc,.split,.contact,.two,.rows li{grid-template-columns:1fr}
  .hero .ph{max-width:360px;--ar:4/3}
  .stairs{grid-template-columns:1fr}
  .step.s0,.step.s1,.step.s2,.step.s3,.stairs .ph{grid-column:1;grid-row:auto}
  .step.s1{margin-left:14px}.step.s2{margin-left:28px}.step.s3{margin-left:42px}
  .stairs .ph{aspect-ratio:4/3;min-height:0}
  .flows{grid-template-columns:1fr}
  .cols3{grid-template-columns:1fr 1fr}
  .coach{grid-template-columns:1fr}
  .coach .ph{max-width:280px}
}
@media (max-width:640px){
  .has-rail .wrap{padding-left:26px}
  .cols3{grid-template-columns:1fr}
  .header-cta{display:none}
  html{--header-h:96px}
  .site-header{--pad:.7rem;--pad-c:.4rem}
  .site-header .wrap{row-gap:.2rem}
  body{font-size:1.02rem}
  .step .n{font-size:2.5rem}
}
/* phones held sideways: keep the sticky header to one row */
@media (max-height:500px) and (orientation:landscape){
  .header-cta{display:none}
}
@media (max-width:400px){
  nav ul{column-gap:1.1rem}
}
@media (max-width:350px){
  nav ul{column-gap:.7rem}
  nav a{font-size:.9rem}
}