:root{
  --slate:#4A5D73; --linen:#F4F2EC; --grey:#E8EAEE; --amber:#E0A458;
  --ink:#33414f; --muted:#6b7280; --line:#e6e3da; --white:#fff;
  --maxw:560px; --radius:16px;
  --font-head:"Playfair Display",Georgia,serif;
  --font-ui:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:var(--font-ui); background:var(--linen); color:var(--ink);
  display:flex; flex-direction:column; min-height:100dvh;
  -webkit-font-smoothing:antialiased;
}
.skip-link{position:absolute;left:-999px;top:0;background:var(--slate);color:#fff;padding:8px 12px;border-radius:8px;z-index:50}
.skip-link:focus{left:8px;top:8px}

.app-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:max(22px,env(safe-area-inset-top)) max(16px,env(safe-area-inset-left)) 8px max(16px,env(safe-area-inset-right));
  max-width:var(--maxw);width:100%;margin:0 auto;
}
.wordmark{
  display:block;height:30px;width:74px;background-color:var(--slate);
  -webkit-mask:url("floof_wordmark.png") left center/contain no-repeat;
          mask:url("floof_wordmark.png") left center/contain no-repeat;
}
.sections-btn{
  font:600 14px/1 var(--font-ui);color:var(--slate);background:transparent;
  border:1.5px solid #c7cdd6;border-radius:18px;padding:9px 13px;min-height:44px;cursor:pointer;
}

.progress{max-width:var(--maxw);width:100%;margin:0 auto;padding:0 16px}
.progress-bar{height:5px;background:var(--line);border-radius:3px;overflow:hidden}
.progress-bar>span{display:block;height:100%;width:10%;background:var(--amber);transition:width .25s ease}
.progress-label{font-size:13px;color:var(--muted);margin-top:6px}

.carousel{flex:1;min-height:0;display:flex}
.track{
  list-style:none;display:flex;overflow-x:auto;scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;width:100%;scrollbar-width:none;
}
.track::-webkit-scrollbar{display:none}
.card{
  scroll-snap-align:center;flex:0 0 100%;min-width:100%;
  display:flex;flex-direction:column;gap:14px;
  padding:14px max(16px,env(safe-area-inset-left)) 8px max(16px,env(safe-area-inset-right));
  max-width:var(--maxw);margin:0 auto;
}
.card-shot{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:0 7px 18px rgba(74,93,115,.15);padding:12px;display:flex;justify-content:center;
  flex:1;min-height:0;
}
.card-shot img{max-width:100%;max-height:100%;object-fit:contain;border-radius:8px;cursor:zoom-in}
.card-caption h2{font-family:var(--font-head);font-weight:600;font-size:22px;color:var(--ink);margin-bottom:6px}
.card-caption p{font-size:16px;line-height:1.5;color:#5b6470}

.bug-link{text-align:center;padding:6px 0}
.bug-link a{font-size:13px;color:var(--slate)}

.bottom-nav{
  display:flex;gap:12px;max-width:var(--maxw);width:100%;margin:0 auto;
  padding:6px 16px max(16px,env(safe-area-inset-bottom));
}
.nav-btn{flex:1;min-height:48px;border-radius:13px;font:700 15px/1 var(--font-ui);cursor:pointer}
.nav-back{background:transparent;color:var(--slate);border:1.5px solid #c7cdd6}
.nav-next{background:var(--slate);color:#fff;border:none}
.nav-btn:disabled{opacity:.4;cursor:default}

.sections-menu{border:none;border-radius:18px;padding:0;max-width:340px;width:90vw;box-shadow:0 18px 50px rgba(31,39,51,.3)}
.sections-menu::backdrop{background:rgba(31,39,51,.45)}
.sections-menu-head{display:flex;justify-content:space-between;align-items:center;background:var(--slate);color:#fff;padding:12px 16px}
.sections-menu ol{list-style:none;max-height:60vh;overflow:auto}
.sections-menu li button{width:100%;text-align:left;font:500 15px/1.3 var(--font-ui);color:var(--slate);background:#fff;border:none;border-bottom:1px solid #f0ede4;padding:14px 16px;min-height:48px;cursor:pointer}
.sections-menu li:last-child button{border-bottom:none}
.icon-btn{background:transparent;border:none;color:inherit;font-size:18px;min-width:44px;min-height:44px;cursor:pointer}

.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
:focus-visible{outline:3px solid var(--amber);outline-offset:2px;border-radius:6px}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}

.hint{font-size:13px;color:var(--slate);opacity:.85;display:flex;align-items:center;gap:6px}
.hint.gone{display:none}
@media (prefers-reduced-motion:no-preference){ .hint{animation:nudge 1.6s ease-in-out 2} }
@keyframes nudge{0%,100%{transform:translateX(0)}50%{transform:translateX(4px)}}

.lightbox{
  border:none;background:transparent;padding:0;margin:0;
  position:fixed;inset:0;
  width:100vw;height:100dvh;max-width:100vw;max-height:100dvh;
}
.lightbox[open]{display:flex;align-items:center;justify-content:center}
.lightbox::backdrop{background:rgba(31,39,51,.85)}
.lightbox img{max-width:94vw;max-height:88vh;object-fit:contain;border-radius:12px;display:block}
.lightbox-close{position:fixed;top:max(12px,env(safe-area-inset-top));right:16px;color:#fff;font-size:24px;background:rgba(0,0,0,.4);border-radius:50%}

@media (max-width:340px){
  .card-caption h2{font-size:19px}
  .card-caption p{font-size:15px}
  .nav-btn{font-size:14px}
}
@media (min-width:600px){
  .card-shot{padding:18px}
  body{background:var(--linen)}
}

/* Desktop / wide viewports: screenshot beside the text instead of stacked.
   Mobile (below 860px) keeps the original stacked layout untouched. */
@media (min-width:860px){
  :root{ --maxw:900px; }          /* widen the header/progress/nav chrome to match */
  .card{
    flex-direction:row;
    align-items:center;
    justify-content:center;
    gap:52px;
    padding-top:24px;
    padding-bottom:24px;
  }
  .card-shot{
    flex:0 0 auto;                /* hug the screenshot, don't stretch */
    align-self:center;
    padding:16px;
  }
  .card-shot img{
    max-height:min(66vh,560px);   /* cap so it stays phone-sized on tall monitors */
    max-width:300px;
    width:auto;
    height:auto;
  }
  .card-caption{
    flex:0 1 430px;
    max-width:430px;
  }
  .card-caption h2{font-size:27px;margin-bottom:10px}
  .card-caption p{font-size:17px}
}