/* PHOMI — Kataloog (catalogue viewer) page.
   Depends on the tokens + .wrap / .btn / .crumb rules in styles.css.
   --kat-r / --kat-rh (spread and half-spread width÷height) are set inline
   on #katReader from the rendered image size. */

/* ─── Hero ─── */
/* Same flat --ink block as .ref-hero, so breadcrumb + hero read as one. */
.kat-hero{
  padding:56px 0 56px;
  background:var(--ink);
  color:#fff;
}
.kat-hero-title{
  font-family:var(--f-sans);
  font-weight:500;
  letter-spacing:-.035em;
  line-height:.98;
  font-size:clamp(40px,7vw,96px);
  margin:0 0 20px;
  color:#fff;
}
.kat-hero-title em{
  font-family:var(--f-serif);
  font-style:italic;
  font-weight:400;
  letter-spacing:-.01em;
}
.kat-hero-sub{
  font-size:clamp(16px,1.35vw,20px);
  line-height:1.55;
  color:rgba(255,255,255,.74);
  max-width:64ch;
  margin:0;
}
.kat-hero-actions{ margin-top:28px; display:flex; gap:12px; flex-wrap:wrap }

/* ─── Reader ─── */
.kat-viewer{ padding:40px 0 96px; background:var(--stone) }

.kat-reader{
  background:var(--paper);
  border-radius:16px;
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.kat-stage{
  position:relative;
  display:flex;
  justify-content:center;
  background:var(--stone-2);
}
.kat-frame{
  position:relative;
  width:100%;
  aspect-ratio:var(--kat-r);
  overflow:hidden;
  touch-action:pan-y pinch-zoom; /* horizontal swipes are ours */
}
.kat-img{
  display:block;
  width:100%;
  height:auto;
  transition:opacity .18s var(--easing);
}
.kat-img.is-loading{ opacity:.35 }

.kat-nav{
  position:absolute;
  top:50%;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border:0;
  border-radius:50%;
  background:rgba(255,255,255,.9);
  color:var(--ink);
  box-shadow:0 6px 18px -8px rgba(15,20,25,.35);
  cursor:pointer;
  transform:translateY(-50%);
  transition:background .2s var(--easing), opacity .2s var(--easing);
}
.kat-nav:hover{ background:#fff }
.kat-nav:disabled{ opacity:0; pointer-events:none }
.kat-nav svg{ width:24px; height:24px }
.kat-prev{ left:14px }
.kat-next{ right:14px }

.kat-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:12px 18px;
  border-top:1px solid var(--line-soft);
}
.kat-counter{
  font-family:var(--f-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--muted);
  white-space:nowrap;
}
.kat-bar-actions{ display:flex; gap:8px }
.kat-tool{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:36px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--paper);
  color:var(--ink-2);
  font-family:var(--f-sans);
  font-size:14px;
  cursor:pointer;
  transition:border-color .2s var(--easing);
}
.kat-tool:hover{ border-color:var(--primary-deep) }
.kat-tool[hidden]{ display:none }
.kat-tool svg{ width:18px; height:18px }

/* ─── Phones: one page (half a spread) at a time ─── */
/* Same image file — the frame is half as wide and the image is shifted, so
   switching halves costs no extra download. Breakpoint matches HALF_MQ in
   kataloog.js and the `sizes` hint in template-kataloog.php. */
@media (max-width:700px){
  .kat-viewer{ padding:24px 0 72px }
  .kat-frame{ aspect-ratio:var(--kat-rh) }
  .kat-img{ width:200%; max-width:none }
  .kat-frame[data-side="r"] .kat-img{ transform:translateX(-50%) }
  .kat-nav{ width:38px; height:38px }
  .kat-prev{ left:8px }
  .kat-next{ right:8px }
  .kat-bar{ padding:10px 12px }
  .kat-tool span{ display:none }
  .kat-tool{ padding:0 10px }
}

/* ─── Fullscreen ─── */
.kat-reader:fullscreen{
  display:flex;
  flex-direction:column;
  border-radius:0;
  background:var(--ink);
}
.kat-reader:fullscreen .kat-stage{
  flex:1;
  align-items:center;
  background:var(--ink);
  min-height:0;
}
.kat-reader:fullscreen .kat-frame{
  width:min(100%, calc((100vh - 62px) * var(--kat-r)));
}
.kat-reader:fullscreen .kat-bar{ border-top-color:rgba(255,255,255,.08) }
.kat-reader:fullscreen .kat-counter{ color:rgba(255,255,255,.6) }
@media (max-width:700px){
  .kat-reader:fullscreen .kat-frame{
    width:min(100%, calc((100vh - 58px) * var(--kat-rh)));
  }
}

/* ─── Thumbnail grid ─── */
.kat-grid-title{
  font-family:var(--f-mono);
  font-size:11px;
  font-weight:400;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--muted);
  margin:56px 0 20px;
}
.kat-grid{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(200px,1fr));
  gap:14px;
}
@media (max-width:560px){ .kat-grid{ grid-template-columns:repeat(2,1fr); gap:10px } }
.kat-thumb{
  position:relative;
  display:block;
  border-radius:8px;
  overflow:hidden;
  background:var(--stone-2);
  box-shadow:0 1px 0 var(--line-soft);
  outline:2px solid transparent;
  outline-offset:2px;
  transition:transform .3s var(--easing), outline-color .2s var(--easing);
}
.kat-thumb:hover{ transform:translateY(-2px) }
.kat-thumb:focus-visible{ outline-color:var(--primary-deep) }
.kat-thumb.is-current{ outline-color:var(--ink) }
.kat-thumb img{ display:block; width:100%; height:auto }
.kat-thumb-n{
  position:absolute;
  left:8px;bottom:8px;
  font-family:var(--f-mono);
  font-size:10.5px;
  letter-spacing:.08em;
  color:var(--ink);
  background:rgba(255,255,255,.85);
  padding:3px 7px;
  border-radius:5px;
}

.kat-empty{
  color:var(--ink-2);
  font-size:15px;
  line-height:1.6;
  margin:0;
}