/* 7Horse Enterprises — short, clean build.
   Design rules kept deliberately few: one accent, one radius, hairlines instead of boxes.
   Performance rules, because the opener is the only thing that moves: the progress bar animates
   transform only, nothing writes text during a scroll, no backdrop-filter anywhere, the video can
   only ever have one seek in flight, and everything below the fold is skipped with
   content-visibility. See assets/app.js. */

:root{
  --bg:#F5F4F0;
  --bg-2:#FAF9F6;
  --surface:#FFFFFF;
  --line:#E3E1DA;
  --ink:#23272C;
  --ink-2:#4C5259;
  --muted:#707780;
  --accent:#4A6478;
  --accent-deep:#3A5062;
  --signal:#A9603F;

  --font-display:'Playfair Display',Georgia,'Times New Roman',serif;
  --font-body:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;

  --maxw:1120px;
  --pad:clamp(20px,4.5vw,56px);
  --radius:12px;
  --sect:clamp(72px,10vh,128px);
  /* one screen of stage plus two screens of travel: the clip scrubs and ends in two scrolls */
  --opener-travel:200vh;
}

/* Alternates stay muted and low-chroma: nothing here should shout. ?accent=clay|olive|steel */
[data-accent="clay"]{ --accent:#9A6350; --accent-deep:#7C4E3E }
[data-accent="olive"]{ --accent:#6E7256; --accent-deep:#575B42 }
[data-accent="steel"]{ --accent:#5A6B7A; --accent-deep:#47565F }

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--font-body);font-size:17px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;font-family:var(--font-display);font-weight:600;letter-spacing:0;line-height:1.16}
.h2 em,.opener-h1 em{font-style:italic;font-weight:500;color:var(--accent)}
p{margin:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad)}
.wrap-narrow{max-width:760px}

.eyebrow{
  margin:0 0 18px;font-family:var(--font-mono);font-size:11.5px;font-weight:500;
  letter-spacing:.2em;text-transform:uppercase;color:var(--accent);
}
.h2{font-size:clamp(30px,4.2vw,46px)}
.lede{margin-top:18px;font-size:clamp(17px,1.5vw,20px);color:var(--ink-2);max-width:56ch}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:13px 24px;border-radius:999px;border:1px solid transparent;
  font-family:var(--font-mono);font-size:12px;font-weight:500;letter-spacing:.09em;
  text-transform:uppercase;white-space:nowrap;transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-solid{background:var(--accent);color:#fff}
.btn-solid:hover{background:var(--accent-deep)}
.btn-ghost{border-color:var(--line);color:var(--ink-2);background:rgba(255,255,255,.6)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- nav ---------- */
.nav{
  position:fixed;inset:0 0 auto;z-index:40;
  transition:background .2s ease,border-color .2s ease;
  border-bottom:1px solid transparent;
}
.nav.is-stuck{background:rgba(245,244,240,.96);border-bottom-color:var(--line)}
.nav-in{
  max-width:var(--maxw);margin:0 auto;padding:16px var(--pad);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brand{
  font-family:var(--font-display);font-weight:700;font-size:19px;
  letter-spacing:-.01em;display:inline-flex;align-items:baseline;gap:8px;
}
.brand-2{
  font-family:var(--font-mono);font-weight:400;font-size:11px;
  letter-spacing:.18em;text-transform:uppercase;color:var(--muted);
}

/* ---------- opener (the only long scroll) ---------- */
.opener{height:calc(100vh + var(--opener-travel))}
.opener-stage{
  position:sticky;top:0;height:100vh;overflow:hidden;
  display:flex;align-items:flex-end;
  background:var(--bg-2);
}
.opener-vid{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transform:scale(1);transform-origin:center 44%;will-change:transform}
.opener-veil{position:absolute;inset:0;pointer-events:none;background:linear-gradient(180deg,rgba(245,244,240,.94) 0%,rgba(245,244,240,.6) 22%,rgba(245,244,240,.62) 52%,rgba(245,244,240,.99) 100%),radial-gradient(120% 90% at 78% 22%,transparent 0%,rgba(245,244,240,.66) 100%)}
.opener-in{
  position:relative;width:100%;max-width:var(--maxw);
  margin:0 auto;padding:0 var(--pad) clamp(96px,15vh,150px);
}
.opener-h1{font-size:clamp(38px,6.6vw,76px);font-weight:600;max-width:16ch}
.opener-sub{margin-top:22px;font-size:clamp(17px,1.6vw,20px);color:var(--ink-2);max-width:52ch}
.opener-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}

.opener-foot{
  position:absolute;left:0;right:0;bottom:0;
  max-width:var(--maxw);margin:0 auto;padding:0 var(--pad) 22px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.scroll-cue{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);
  transition:opacity .25s ease;
}
.scroll-cue i{display:block;width:1px;height:26px;background:var(--line);position:relative;overflow:hidden}
.scroll-cue i::after{
  content:"";position:absolute;left:0;top:-26px;width:1px;height:26px;background:var(--accent);
  animation:cue 2.4s ease-in-out infinite;
}
@keyframes cue{0%{top:-26px}60%{top:26px}100%{top:26px}}
.opener.is-scrolled .scroll-cue{opacity:0}
.opener.is-done .scroll-cue{opacity:0}
.opener-bar{flex:1;height:1px;background:var(--line);max-width:340px;overflow:hidden}
.opener-bar span{
  display:block;height:100%;width:100%;background:var(--accent);
  transform:scaleX(0);transform-origin:left center;will-change:transform;
}

/* ---------- bands ---------- */
.band{padding:var(--sect) 0}
.band-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
/* skip painting work for anything below the fold; the placeholder keeps the scrollbar honest */
.band{content-visibility:auto;contain-intrinsic-size:auto 640px}

/* ---------- credentials ---------- */
.facts{
  max-width:var(--maxw);margin:0 auto;padding:0 var(--pad);
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
}
.facts>div{background:var(--bg);padding:26px 22px}
.facts dt{
  font-family:var(--font-display);font-size:19px;font-weight:600;color:var(--ink);
}
.facts dd{margin:8px 0 0;font-size:15.5px;color:var(--muted);line-height:1.5}

/* ---------- services ---------- */
.svc{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
/* media finishing: rounded, hairline ring and a soft warm shadow, as on the reference */
.svc img,.card img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:14px;
  box-shadow:0 0 0 1px rgba(169,124,47,.3),0 12px 28px rgba(35,39,44,.1)}
.svc{overflow:visible}
.svc-body{padding:26px 28px 30px}
.svc h3{font-size:24px;margin-bottom:10px}
.svc p{color:var(--ink-2);font-size:16.5px}
.svc-lead{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;margin-top:44px}
.svc-lead img{height:100%;aspect-ratio:auto;min-height:340px}
.svc-pair{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:28px}

/* ---------- industries ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:44px}
.card{margin:0}
.card figcaption{margin-top:12px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted)}

/* ---------- faq ---------- */
.faq{margin-top:38px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;padding:20px 0;font-family:var(--font-display);font-size:20px;
  font-weight:500;list-style:none;display:flex;justify-content:space-between;gap:20px;align-items:baseline}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--font-mono);font-size:16px;color:var(--accent)}
.faq details[open] summary::after{content:"\2212"}
.faq p{padding:0 0 22px;color:var(--ink-2);max-width:68ch}

/* ---------- process ---------- */
.steps{
  list-style:none;margin:44px 0 0;padding:0;
  display:grid;grid-template-columns:repeat(3,1fr);gap:32px;
}
.steps li{border-top:1px solid var(--line);padding-top:22px}
.step-n{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.2em;color:var(--accent);
}
.steps h3{font-size:22px;margin:12px 0 10px}
.steps p{color:var(--ink-2);font-size:16.5px}

/* ---------- why / compliance / coverage ---------- */
.cols{list-style:none;margin:44px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.cols li{border-top:1px solid var(--line);padding-top:22px}
.cols h3{font-size:20px;margin-bottom:10px}
.cols p{color:var(--ink-2);font-size:16.5px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;margin-top:26px;align-items:start}
.plain{list-style:none;margin:0;padding:0}
.plain li{border-top:1px solid var(--line);padding:14px 0;color:var(--ink-2);font-size:16.5px}
.plain li:first-child{border-top:0;padding-top:0}

/* ---------- contact ---------- */
.contact-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.contact-meta{margin-top:26px;font-size:15.5px;color:var(--muted);line-height:1.7}
.contact-meta a{border-bottom:1px solid var(--line)}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--line);padding:30px 0 40px;background:var(--bg-2)}
.foot-in{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--muted)}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .cards{grid-template-columns:1fr 1fr;gap:20px}
  .cols{grid-template-columns:1fr;gap:0}
  .cols li{padding:22px 0}
  .split{grid-template-columns:1fr;gap:22px}
  .facts{grid-template-columns:1fr 1fr}
  .svc-lead{grid-template-columns:1fr}
  .svc-lead img{min-height:0;aspect-ratio:16/9}
  .svc-pair{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;gap:0}
  .steps li{padding:22px 0}
}
@media (max-width:560px){
  .cards{grid-template-columns:1fr}
  body{font-size:16.5px}
  .facts{grid-template-columns:1fr}
  .nav-tel{display:none}
  .btn{width:100%}
  .opener-cta{gap:10px}
  .opener-bar{max-width:180px}
}
@media (prefers-reduced-motion:reduce){
  .opener-vid{will-change:auto}
  html{scroll-behavior:auto}
  .scroll-cue i::after{animation:none}
  .opener{height:100vh}
  .opener-stage{position:relative}
}

/* ---------- header nav and sub-pages (generated by tools/build_pages.py) ---------- */
.nav-links{display:flex;align-items:center;gap:clamp(14px,2vw,30px)}
.nav-links>a{font-size:15.5px;color:var(--ink-2)}
.nav-links>a:hover{color:var(--accent)}
.nav-links>a[aria-current="page"]{color:var(--ink);border-bottom:1px solid var(--accent)}
.nav-cta{margin-left:6px}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:6px;cursor:pointer}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink)}
.nav.is-solid{background:rgba(245,244,240,.97);border-bottom-color:var(--line)}
.page-hero{padding:clamp(118px,15vh,176px) 0 0}
.h1{font-size:clamp(34px,5.2vw,58px);max-width:22ch}
.h1 em{font-style:italic;font-weight:500;color:var(--accent)}
@media (max-width:900px){
  .nav-toggle{display:flex}
  .nav-links{position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;
    align-items:flex-start;gap:0;background:var(--bg);border-bottom:1px solid var(--line);
    padding:10px var(--pad) 22px}
  .nav-links.is-open{display:flex}
  .nav-links>a{width:100%;padding:13px 0;border-bottom:1px solid var(--line)}
  .nav-links>a[aria-current="page"]{border-bottom:1px solid var(--accent)}
  .nav-links .nav-cta{width:100%;margin:16px 0 0}
}