/* ═══════════════════════════════════════════════════════════════
   PRODAVNICA — katalog sa filterima + stranica knjige (šablon)
   ═══════════════════════════════════════════════════════════════ */

.katalog-raspored {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 2rem;
  padding-bottom: 3.5rem;
  align-items: start;
}

.mobilni-filter-dugme { display: none; }

/* ─── Bočni filteri ─────────────────────────────────────────── */
.bocna { position: sticky; top: 90px; }

.filter-kutija {
  background: var(--belo);
  border: 1px solid var(--linija);
  border-radius: var(--radius);
  padding: 1.3rem 1.3rem 1rem;
  margin-bottom: 1.1rem;
}
.filter-kutija h4 {
  font-size: 0.72rem; font-weight: 800;
  letter-spacing: 0.12em; text-transform: uppercase;
  padding-bottom: 0.6rem; margin-bottom: 0.7rem;
  border-bottom: 2px solid var(--linija);
}
.filter-kutija .pod-naslov {
  font-size: 0.66rem; font-weight: 800;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--tekst-blagi);
  margin: 0.9rem 0 0.3rem;
}
.filter-lista a {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.38rem 0;
  font-size: 0.86rem; font-weight: 600;
  color: var(--tekst);
}
.filter-lista a:hover { color: var(--teget); padding-left: 4px; }
.filter-lista a.aktivan { color: var(--zlatna-tamna); }
.filter-lista a span { font-size: 0.72rem; color: var(--tekst-blagi); font-weight: 600; }

.filter-stiklo {
  display: flex; align-items: center; gap: 0.55rem;
  padding: 0.3rem 0;
  font-size: 0.84rem;
  color: var(--tekst);
  cursor: pointer;
}
.filter-stiklo input { accent-color: var(--teget); }

/* ─── Alatke ────────────────────────────────────────────────── */
.alatke {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap;
  margin-bottom: 1.4rem;
}
.alatke .rezultati { font-size: 0.84rem; color: var(--tekst-blagi); }
.alatke .rezultati strong { color: var(--teget); }
.sortiranje { display: flex; align-items: center; gap: 0.6rem; font-size: 0.8rem; color: var(--tekst-blagi); }
.sortiranje select {
  padding: 0.5rem 0.9rem;
  border: 1.5px solid var(--linija); border-radius: 6px;
  background: var(--belo);
  font-family: var(--font); font-size: 0.82rem; font-weight: 600;
  color: var(--tekst);
  cursor: pointer;
}
.sortiranje select:focus { outline: none; border-color: var(--teget); }

.knjige-mreza { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; }

/* ═══ STRANICA KNJIGE (šablon — puni se iz baze) ══════════════ */
.detalj-raspored {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 2.8rem;
  padding: 1.6rem 0 3rem;
  align-items: start;
}

.detalj-slika {
  aspect-ratio: 3 / 4;
  background: var(--pozadina);
  border: 1px solid var(--linija);
  border-radius: var(--radius);
  display: grid; place-items: center;
  text-align: center;
  color: var(--tekst-blagi);
  font-size: 0.82rem;
  padding: 1rem;
}
.detalj-slika .ikona { font-size: 3rem; display: block; margin-bottom: 0.6rem; }
.detalj-slicice { display: flex; gap: 0.6rem; margin-top: 0.8rem; }
.detalj-slicice span {
  width: 62px; height: 78px;
  background: var(--pozadina);
  border: 1px solid var(--linija);
  border-radius: 6px;
  display: grid; place-items: center;
  color: var(--tekst-blagi); font-size: 1.1rem;
}

.detalj-info h1 { font-size: 1.7rem; }
.detalj-info .autor { font-size: 0.95rem; color: var(--tekst-blagi); margin: 0.2rem 0 0.5rem; }
.zvezdice { color: var(--zlatna); font-size: 0.9rem; letter-spacing: 0.1em; }
.zvezdice small { color: var(--tekst-blagi); letter-spacing: 0; margin-left: 0.4rem; }

.detalj-cena {
  font-size: 1.7rem; font-weight: 800; color: var(--teget);
  margin: 1rem 0 0.4rem;
}
.dostupnost { font-size: 0.8rem; font-weight: 700; color: var(--uspeh); }
.dostupnost::before { content: '● '; font-size: 0.7rem; }

.detalj-meta {
  display: grid; grid-template-columns: max-content 1fr;
  gap: 0.4rem 1.6rem;
  font-size: 0.86rem;
  margin: 1.4rem 0;
  padding: 1.2rem 0;
  border-top: 1px solid var(--linija);
  border-bottom: 1px solid var(--linija);
}
.detalj-meta dt { font-weight: 800; color: var(--teget); }
.detalj-meta dd { color: var(--tekst-blagi); }

.kupovina-red { display: flex; gap: 0.8rem; align-items: center; flex-wrap: wrap; margin-bottom: 1rem; }

/* ─── Tabovi ────────────────────────────────────────────────── */
.tab-okvir { margin-top: 2.4rem; }
.tabovi { display: flex; gap: 0.2rem; border-bottom: 2px solid var(--linija); flex-wrap: wrap; }
.tab {
  background: none; border: none;
  padding: 0.75rem 1.3rem;
  font-size: 0.76rem; font-weight: 800;
  letter-spacing: 0.07em; text-transform: uppercase;
  color: var(--tekst-blagi);
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: var(--prelaz);
}
.tab:hover { color: var(--teget); }
.tab.aktivan { color: var(--teget); border-bottom-color: var(--zlatna); }
.tab-panel { display: none; padding: 1.5rem 0.2rem; font-size: 0.9rem; color: var(--tekst-blagi); line-height: 1.8; }
.tab-panel.aktivan { display: block; }
.tab-panel h4 { font-size: 0.95rem; margin: 1.1rem 0 0.3rem; }
.tab-panel h4:first-child { margin-top: 0; }

/* ─── Responsive ────────────────────────────────────────────── */
@media (max-width: 1020px) {
  .knjige-mreza { grid-template-columns: repeat(3, 1fr); }
  .detalj-raspored { grid-template-columns: 280px 1fr; gap: 2rem; }
}
@media (max-width: 860px) {
  .katalog-raspored { grid-template-columns: 1fr; }
  .mobilni-filter-dugme {
    width: 100%;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--teget);
    border-radius: 8px;
    background: var(--belo);
    color: var(--teget);
    font-family: var(--font);
    font-size: 0.84rem;
    font-weight: 800;
    text-align: left;
  }
  .mobilni-filter-dugme:hover,
  .mobilni-filter-dugme[aria-expanded="true"] {
    background: var(--teget);
    color: var(--belo);
  }
  .mobilni-filter-dugme #mobilni-filter-status {
    font-size: 0.72rem;
    font-weight: 700;
  }
  .bocna {
    position: static;
    display: none;
    grid-template-columns: 1fr 1fr;
    gap: 1.1rem;
    align-items: start;
  }
  .bocna.otvorena { display: grid; }
  .detalj-raspored { grid-template-columns: 1fr; }
  .detalj-slika { max-width: 320px; margin: 0 auto; }
  .detalj-slicice { justify-content: center; }
}
@media (max-width: 640px) {
  .knjige-mreza { grid-template-columns: repeat(2, 1fr); gap: 0.9rem; }
  .bocna { grid-template-columns: 1fr; }
  .alatke { align-items: stretch; }
  .sortiranje { width: 100%; align-items: stretch; flex-direction: column; gap: 0.35rem; }
  .sortiranje select { width: 100%; min-width: 0; }
}

/* ─── Paginacija ─────────────────────────────────────────────── */
.paginacija {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 0.4rem; margin-top: 2rem; justify-content: center;
}
.pag-dugme {
  min-width: 40px; height: 40px; padding: 0 0.7rem;
  border: 1px solid var(--linija); border-radius: 8px;
  background: #fff; color: var(--teget);
  font-size: 0.9rem; font-weight: 600; cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.pag-dugme:hover:not(:disabled):not(.aktivan) { border-color: var(--teget); background: var(--pozadina); }
.pag-dugme.aktivan { background: var(--teget); border-color: var(--teget); color: #fff; cursor: default; }
.pag-dugme:disabled { opacity: 0.4; cursor: not-allowed; }
.pag-tri { padding: 0 0.3rem; color: var(--tekst-blagi); }
.pag-izbor {
  display: inline-flex; align-items: center; gap: 0.4rem;
  margin-left: 0.6rem; font-size: 0.88rem; color: var(--tekst-blagi);
}
.pag-izbor select {
  height: 40px; padding: 0 0.5rem; border: 1px solid var(--linija);
  border-radius: 8px; background: #fff; color: var(--teget); font-weight: 600; cursor: pointer;
}
@media (max-width: 640px) {
  .pag-izbor { width: 100%; justify-content: center; margin: 0.5rem 0 0; }
}

/* ─── Nagoveštaj da se slika može uvećati ────────────────────── */
.detalj-slika.ima-sliku { position: relative; padding: 0; overflow: hidden; cursor: zoom-in; }
.detalj-slika.ima-sliku::after {
  content: "🔍 Klikni za uveličavanje";
  position: absolute; left: 8px; bottom: 8px;
  background: rgba(19, 40, 73, 0.82); color: #fff;
  font-size: 0.72rem; padding: 5px 9px; border-radius: 999px;
  pointer-events: none; opacity: 0; transition: opacity 0.18s;
}
.detalj-slika.ima-sliku:hover::after { opacity: 1; }

/* ─── LIGHTBOX (uvećavanje slika) ────────────────────────────── */
.lb {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(10, 15, 25, 0.94);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transition: opacity 0.2s ease;
}
.lb.otvoren { opacity: 1; visibility: visible; }
.lb-platno {
  position: absolute; inset: 0; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  touch-action: none; cursor: grab;
}
.lb-platno.zumirano { cursor: grabbing; }
.lb-slika {
  max-width: 92vw; max-height: 88vh; object-fit: contain;
  transform-origin: center center; will-change: transform;
  user-select: none; -webkit-user-drag: none;
}
/* Zatvori (X) */
.lb-zatvori {
  position: absolute; top: 14px; right: 16px; z-index: 2;
  width: 44px; height: 44px; border: 0; border-radius: 50%;
  background: rgba(255, 255, 255, 0.12); color: #fff;
  font-size: 1.6rem; line-height: 1; cursor: pointer;
  transition: background 0.15s;
}
.lb-zatvori:hover { background: rgba(255, 255, 255, 0.25); }
/* Strelice */
.lb-strela {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 2;
  width: 48px; height: 48px; border: 0; border-radius: 50%;
  background: rgba(255, 255, 255, 0.12); color: #fff;
  font-size: 2rem; line-height: 1; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s;
}
.lb-strela:hover { background: rgba(255, 255, 255, 0.25); }
.lb-prev { left: 14px; } .lb-next { right: 14px; }
/* Alatke za zum */
.lb-alat {
  position: absolute; bottom: 18px; left: 50%; transform: translateX(-50%); z-index: 2;
  display: flex; gap: 6px; background: rgba(255, 255, 255, 0.1);
  padding: 6px; border-radius: 999px;
}
.lb-dugme {
  min-width: 42px; height: 38px; padding: 0 12px; border: 0; border-radius: 999px;
  background: transparent; color: #fff; font-size: 1.15rem; font-weight: 600;
  cursor: pointer; transition: background 0.15s;
}
.lb-reset { font-size: 0.82rem; }
.lb-dugme:hover { background: rgba(255, 255, 255, 0.22); }
/* Brojač slika */
.lb-brojac {
  position: absolute; top: 18px; left: 50%; transform: translateX(-50%); z-index: 2;
  color: #fff; font-size: 0.85rem; background: rgba(255, 255, 255, 0.12);
  padding: 5px 12px; border-radius: 999px;
}
@media (max-width: 640px) {
  .lb-strela { width: 42px; height: 42px; font-size: 1.6rem; }
  .lb-slika { max-width: 96vw; max-height: 82vh; }
}

/* ─── Nasumične knjige iz iste kategorije (stranica knjige) ──── */
/* Kratko prigušenje dok se bira nova četvorka — bez skakanja rasporeda */
.knjige-mreza.nasumicne-menjaju-se { opacity: 0.45; transition: opacity 0.2s var(--ease-out); }