/* Nur Way — Digital Reader | Beyribey Bilişim
   zuhurdergisi.com okuyucusunun nur-way (lacivert/eflatun gri) uyarlaması */
:root{
  --kagit:#eef1f5; --beyaz:#ffffff;
  --lacivert:#111827; --lacivert-2:#293a52; --lacivert-3:#3d5677;
  --cizgi:#e4e7ec; --cizgi-koyu:#d0d5dd;
  --murekkep:#101828; --gri:#667085; --gri-2:#98a2b3;
  --disp:Georgia, "Times New Roman", serif;
  --util:system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
*{box-sizing:border-box}
body{margin:0; background:var(--kagit); color:var(--murekkep); font-family:var(--util);
  -webkit-font-smoothing:antialiased}
a{color:inherit; text-decoration:none}
:focus-visible{outline:2.5px solid var(--lacivert-3); outline-offset:2px}
h1,h2,h3{font-family:var(--disp); font-weight:600; margin:0}

/* ---- üst ---- */
.okuyucu-bas{background:linear-gradient(135deg,#111827,#293a52); color:#fff; position:relative}
.okuyucu-bas .ic{width:min(1440px,100% - 36px); margin-inline:auto; display:flex; align-items:center;
  gap:20px; padding:14px 0 15px; flex-wrap:wrap}
.geri-baglanti{display:inline-flex; align-items:center; gap:8px; color:rgba(255,255,255,.72);
  font-size:11.5px; letter-spacing:.14em; text-transform:uppercase; font-weight:600}
.geri-baglanti:hover{color:#fff}
.marka{display:flex; align-items:baseline; gap:12px; margin-inline:auto}
.marka .ad{font-family:var(--disp); font-size:30px; color:#fff; line-height:1}
.marka .kunye{font-size:10px; letter-spacing:.2em; text-transform:uppercase; color:rgba(255,255,255,.55)}
.bas-sag{display:flex; gap:10px; align-items:center}

.dg{font-size:11px; font-weight:700; letter-spacing:.12em; text-transform:uppercase;
  padding:11px 18px; border:1px solid rgba(255,255,255,.35); color:#fff; background:transparent;
  border-radius:999px; cursor:pointer; display:inline-flex; align-items:center; gap:7px; transition:.2s; white-space:nowrap}
.dg:hover{background:rgba(255,255,255,.14); border-color:rgba(255,255,255,.6)}
.dg.koyu{background:#fff; border-color:#fff; color:var(--lacivert)}
.dg.koyu:hover{background:var(--cizgi); border-color:var(--cizgi)}
/* açılamadı kutusundaki düğmeler açık zeminde durur */
.acilmadi .dg{border-color:var(--cizgi-koyu); color:var(--murekkep)}
.acilmadi .dg:hover{background:var(--kagit)}
.acilmadi .dg.koyu{background:var(--lacivert); border-color:var(--lacivert); color:#fff}
.acilmadi .dg.koyu:hover{background:var(--lacivert-2); border-color:var(--lacivert-2)}

/* ---- araç çubuğu ---- */
.arac{background:var(--beyaz); border-bottom:1px solid var(--cizgi); position:sticky; top:0; z-index:30;
  box-shadow:0 2px 10px rgba(15,23,42,.05)}
.arac .ic{width:min(1440px,100% - 36px); margin-inline:auto; display:flex; align-items:center; gap:12px;
  padding:9px 0; flex-wrap:wrap}
.grup{display:flex; align-items:center; gap:8px; background:var(--beyaz); border:1px solid var(--cizgi-koyu);
  border-radius:999px; padding:5px 8px}
.ikon{width:34px; height:34px; border-radius:50%; border:1px solid transparent; background:transparent;
  color:#344054; cursor:pointer; font-size:15px; display:grid; place-items:center; transition:.18s; padding:0}
.ikon:hover{background:var(--lacivert); color:#fff}
.ikon.aktif{background:var(--lacivert); color:#fff}
.ikon:disabled{opacity:.35; cursor:not-allowed}
.sayfa-giris{width:52px; text-align:center; border:1px solid var(--cizgi-koyu); border-radius:6px;
  padding:6px 4px; font-family:var(--util); font-size:13px; background:var(--beyaz); color:var(--murekkep)}
.arac .toplam{font-size:12px; color:var(--gri)}
.arac .oran{font-size:12px; min-width:46px; text-align:center; color:#344054; font-weight:700}
.arac .baslik{margin-inline:auto; font-family:var(--disp); font-size:18px; color:var(--lacivert); font-style:italic;
  max-width:min(46ch,38vw); white-space:nowrap; overflow:hidden; text-overflow:ellipsis}

/* ---- gövde ---- */
.govde{display:grid; grid-template-columns:268px minmax(0,1fr); min-height:70vh}
/* Perde her zaman akış dışında durur; yoksa ızgaranın ilk hücresini kapıyor. */
.perde{position:fixed; inset:0; background:rgba(16,24,40,.5); z-index:75; opacity:0;
  pointer-events:none; transition:opacity .3s}
.perde.acik{opacity:1; pointer-events:auto}
.kenar{background:var(--beyaz); border-right:1px solid var(--cizgi); padding:0 0 30px;
  max-height:calc(100vh - 53px); overflow:auto; position:sticky; top:53px}
/* Kenar kapanınca sütun da sıfırlanır; yoksa sahne dar sütuna düşer. */
.govde.kenarsiz{grid-template-columns:0 minmax(0,1fr)}
.kenar.kapali{visibility:hidden; overflow:hidden; border-right:0; padding:0}
.kenar-baslik{position:sticky; top:0; z-index:2; background:var(--beyaz); border-bottom:1px solid var(--cizgi);
  padding:13px 16px; font-size:10.5px; letter-spacing:.16em; text-transform:uppercase; font-weight:700; color:var(--gri)}
.panel{padding:16px 16px 0}

.kucukler{display:grid; grid-template-columns:1fr 1fr; gap:12px}
.kucuk{position:relative; border:1px solid var(--cizgi-koyu); background:var(--kagit); cursor:pointer; padding:0;
  aspect-ratio:3/4.1; overflow:hidden; border-radius:6px; transition:.18s}
.kucuk:hover{border-color:var(--lacivert-3)}
.kucuk.aktif{border-color:var(--lacivert); box-shadow:0 0 0 2px rgba(41,58,82,.35)}
.kucuk canvas,.kucuk svg,.kucuk img{width:100%; height:100%; display:block; object-fit:cover}
.kucuk .no{position:absolute; bottom:0; left:0; right:0; background:rgba(17,24,39,.85); color:#fff;
  font-size:10px; letter-spacing:.1em; padding:3px; text-align:center}

/* ---- sahne ---- */
.sahne{background:
    linear-gradient(45deg, rgba(148,163,184,.055) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(148,163,184,.055) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(148,163,184,.055) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(148,163,184,.055) 75%),
    #e9edf2;
  background-position:0 0, 0 8px, 8px -8px, -8px 0; background-size:16px 16px;
  padding:30px 20px 46px; display:flex; flex-direction:column; align-items:center; gap:18px; position:relative}
.acilim{position:relative; display:flex; gap:0; align-items:stretch; justify-content:center; max-width:100%;
  filter:drop-shadow(0 22px 38px rgba(15,23,42,.28)); min-height:120px}
/* Kutunun ölçüsü çizimden önce JS ile veriliyor; sayfa yüklenirken ekran zıplamıyor. */
.varak{position:relative; background:var(--beyaz); border:1px solid var(--cizgi-koyu);
  border-radius:6px; overflow:hidden; flex:0 0 auto}
.varak + .varak{border-left:0}
.varak canvas,.varak img.sayfa{display:block; width:100%; height:100%; object-fit:contain}
.varak .iskelet{position:absolute; inset:0; display:grid; place-items:center; background:var(--beyaz);
  color:var(--gri-2); font-style:italic; font-size:14px; letter-spacing:.02em}
.acilim.mesgul .iskelet::after{content:""; position:absolute; left:0; right:0; bottom:0; height:2px;
  background:linear-gradient(90deg,transparent,var(--lacivert-3),transparent); animation:yukleniyor 1.1s linear infinite}
@keyframes yukleniyor{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}
.yukleniyor{padding:80px 20px; text-align:center; color:var(--gri); font-style:italic}

/* PDF açılamazsa: sahte sayfa yerine dürüst bilgi */
.acilmadi{width:min(560px,100%); background:var(--beyaz); border:1px solid var(--cizgi-koyu);
  border-radius:10px; padding:38px 34px; text-align:center}
.acilmadi h2{font-size:24px; color:var(--lacivert); margin-bottom:12px}
.acilmadi p{color:var(--gri); font-size:15px; margin:0 0 20px}
.acilmadi .dugmeler{display:flex; gap:10px; justify-content:center; flex-wrap:wrap}
.acilmadi .sebep{margin:20px 0 0; font-size:12px; color:var(--gri-2);
  border-top:1px dotted var(--cizgi-koyu); padding-top:12px}

/* ---- sahne içi gezinme okları ---- */
.yon{position:absolute; top:50%; transform:translateY(-50%); z-index:6;
  width:44px; height:44px; border-radius:50%; display:grid; place-items:center;
  background:rgba(255,255,255,.9); border:1px solid var(--cizgi-koyu); color:var(--lacivert);
  font-size:22px; line-height:1; cursor:pointer; backdrop-filter:blur(3px);
  box-shadow:0 4px 14px rgba(15,23,42,.18); transition:.18s; padding:0 0 3px}
.yon:hover{background:var(--lacivert); border-color:var(--lacivert); color:#fff}
.yon:disabled{opacity:0; pointer-events:none}
.yon.sol{left:14px} .yon.sag{right:14px}

/* ---- tam ekran ---- */
.tam-arac{display:none}
.sahne:fullscreen{overflow:auto; padding:64px 14px 24px; justify-content:flex-start;
  background:linear-gradient(180deg,#161e2c,#0b111c); gap:0}
.sahne:fullscreen{align-items:center; align-items:safe center}
/* yakınlaşınca sayfa ekranı aşabilsin, kırpılmadan kaydırılabilsin */
.sahne:fullscreen .acilim{max-width:none; margin:auto; filter:drop-shadow(0 18px 34px rgba(0,0,0,.55))}
.sahne:fullscreen .varak .iskelet{background:#1c2636; color:rgba(255,255,255,.55)}
.sahne:fullscreen .yon{position:fixed; background:rgba(22,30,44,.75); border-color:rgba(255,255,255,.35);
  color:#fff; width:48px; height:48px}
.sahne:fullscreen .yon:hover{background:#fff; border-color:#fff; color:var(--lacivert)}
.sahne:fullscreen .tam-arac{display:flex; position:fixed; top:12px; left:50%; transform:translateX(-50%);
  z-index:8; align-items:center; gap:6px; padding:5px 8px; border-radius:999px;
  background:rgba(22,30,44,.88); border:1px solid rgba(255,255,255,.28); backdrop-filter:blur(6px)}
.tam-arac .ikon{color:#fff; width:32px; height:32px; font-size:14px}
.tam-arac .ikon:hover{background:#fff; color:var(--lacivert)}
.tam-arac .ikon.cikis{color:#fda29b}
.tam-arac .sayac{font-size:12px; color:#fff; padding:0 8px; white-space:nowrap}
.tam-arac .ayrac{width:1px; height:20px; background:rgba(255,255,255,.25)}

/* alt bilgi */
footer{background:var(--lacivert); color:rgba(255,255,255,.65)}
footer .ic{width:min(1440px,100% - 36px); margin-inline:auto; padding:20px 0;
  display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap; font-size:13px}
footer b{color:#fff}

@media (max-width:1000px){
  .govde,.govde.kenarsiz{grid-template-columns:1fr}
  .kenar{position:fixed; top:0; left:0; bottom:0; width:min(300px,85vw); z-index:80; max-height:none;
    transform:translateX(-104%); transition:transform .35s cubic-bezier(.32,.72,.3,1);
    box-shadow:0 0 60px rgba(16,24,40,.45); border-right:1px solid var(--cizgi-koyu)}
  .kenar.acik{transform:none}
  /* mobilde gizleme transform ile yapılır; masaüstünün kapali kuralı geçersiz */
  .kenar.kapali{visibility:visible; overflow:auto; border-right:1px solid var(--cizgi-koyu); padding:0 0 30px}
  .arac .baslik{display:none}
  .arac .ic{flex-wrap:nowrap; overflow-x:auto; scrollbar-width:none; padding:8px 0; gap:9px}
  .arac .ic::-webkit-scrollbar{display:none}
  .grup{flex:0 0 auto}
  .okuyucu-bas .ic{padding:11px 0 12px; gap:10px}
  .marka .ad{font-size:23px} .marka .kunye{display:none}
  .bas-sag .dg{padding:9px 13px; font-size:10px}
  .sahne{padding:16px 8px 34px; gap:14px}
  .yon{width:38px; height:38px; font-size:19px}
  .yon.sol{left:6px} .yon.sag{right:6px}
  footer .ic{flex-direction:column; gap:8px; text-align:center; align-items:center}
  footer .klavye{display:none}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}