:root{
  --lacivert:#1a2744;
  --lacivert-koyu:#111c35;
  --turuncu:#e55c00;
  --turuncu-koyu:#c74e00;
  --zemin:#f5f3ef;
  --beyaz:#fff;
  --metin:#1e1e2e;
  --soluk:#6b7280;
  --cizgi:#e5e7eb;
  --golge:0 2px 12px rgba(0,0,0,.10);
  --golge-buyuk:0 8px 32px rgba(0,0,0,.15);
  --yuvarlak:10px;
  --font:'Nunito',system-ui,-apple-system,sans-serif;
  --gecis:.22s ease;
  --genislik:1280px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--metin);background:var(--zemin);line-height:1.55;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--turuncu);text-decoration:none}
a:hover{text-decoration:underline}
.pk-container{max-width:var(--genislik);margin:0 auto;padding:0 20px}

.pk-header{background:var(--lacivert);color:var(--beyaz);position:sticky;top:0;z-index:50;box-shadow:var(--golge)}
.pk-header-ic{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.pk-logo{display:flex;align-items:center;gap:10px;color:var(--beyaz);font-weight:900;font-size:1.35rem;letter-spacing:-.01em}
.pk-logo:hover{text-decoration:none}
.pk-logo-ikon{background:var(--turuncu);color:var(--beyaz);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.95rem;padding:6px 8px;border-radius:6px}
.pk-slogan{color:#b8c1d6;font-size:.9rem;font-weight:600}

.pk-btn{display:inline-block;padding:12px 24px;border-radius:8px;font-weight:800;font-size:.95rem;border:2px solid transparent;cursor:pointer;transition:background var(--gecis),color var(--gecis),border-color var(--gecis);font-family:var(--font)}
.pk-btn:hover{text-decoration:none}
.pk-btn-turuncu{background:var(--turuncu);color:var(--beyaz)}
.pk-btn-turuncu:hover{background:var(--turuncu-koyu)}
.pk-btn-cizgi{background:transparent;color:var(--lacivert);border-color:var(--lacivert)}
.pk-btn-cizgi:hover{background:var(--lacivert);color:var(--beyaz)}
.pk-btn-kucuk{padding:8px 14px;font-size:.85rem;background:var(--lacivert);color:var(--beyaz)}
.pk-btn-kucuk:hover{background:var(--lacivert-koyu)}

.pk-hero{position:relative;background:linear-gradient(135deg,var(--lacivert-koyu) 0%,var(--lacivert) 60%,#243a6b 100%);color:var(--beyaz);overflow:hidden}
.pk-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(229,92,0,.25),transparent 45%),radial-gradient(circle at 10% 90%,rgba(255,255,255,.06),transparent 40%)}
.pk-hero-slaytlar{position:relative;min-height:440px}
.pk-slayt{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .6s ease,visibility .6s}
.pk-slayt.aktif{opacity:1;visibility:visible;position:relative}
.pk-slayt-ic{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;min-height:440px;padding-top:40px;padding-bottom:56px}
.pk-slayt-on{display:inline-block;background:rgba(229,92,0,.18);color:#ffb27a;border:1px solid rgba(229,92,0,.45);padding:4px 12px;border-radius:999px;font-size:.8rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;margin-bottom:16px}
.pk-slayt-baslik{font-size:clamp(2rem,4.5vw,3.4rem);line-height:1.1;font-weight:900;margin:0 0 16px}
.pk-slayt-baslik span{color:var(--turuncu)}
.pk-slayt-aciklama{font-size:1.1rem;color:#c9d1e3;max-width:540px;margin:0 0 28px}
.pk-slayt-kod{background:#0d1526;border:1px solid rgba(255,255,255,.08);border-radius:12px;box-shadow:var(--golge-buyuk);overflow:hidden;transform:rotate(-1.5deg)}
.pk-kod-bar{display:flex;gap:6px;padding:10px 14px;background:#0a1120;border-bottom:1px solid rgba(255,255,255,.06)}
.pk-kod-bar i{width:11px;height:11px;border-radius:50%;background:#ff5f57}
.pk-kod-bar i:nth-child(2){background:#febc2e}
.pk-kod-bar i:nth-child(3){background:#28c840}
.pk-slayt-kod-not pre{color:#e8e2c9;font-family:Georgia,'Times New Roman',serif;font-size:1rem}
.pk-slayt-kod-alinti pre{color:#d9c8ff;font-family:Georgia,'Times New Roman',serif;font-size:1.05rem;font-style:italic}
.pk-slayt-kod pre{margin:0;padding:22px 24px;color:#9ee8a8;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.95rem;line-height:1.6;white-space:pre-wrap}
.pk-hero-ok{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.08);color:var(--beyaz);font-size:1.8rem;line-height:1;cursor:pointer;transition:background var(--gecis)}
.pk-hero-ok:hover{background:rgba(255,255,255,.2)}
.pk-hero-ok-sol{left:14px}
.pk-hero-ok-sag{right:14px}
.pk-hero-noktalar{position:absolute;bottom:18px;left:0;right:0;display:flex;justify-content:center;gap:8px;z-index:3}
.pk-hero-noktalar button{width:10px;height:10px;border-radius:50%;border:0;background:rgba(255,255,255,.35);cursor:pointer;padding:0;transition:background var(--gecis),transform var(--gecis)}
.pk-hero-noktalar button.aktif{background:var(--turuncu);transform:scale(1.25)}

.pk-bolum{padding:48px 0}
.pk-bolum-bas{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:24px}
.pk-bolum-baslik{font-size:1.7rem;font-weight:900;margin:0;position:relative;padding-left:14px}
.pk-bolum-baslik::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;border-radius:3px;background:var(--turuncu)}
.pk-bolum-sayi{color:var(--soluk);font-weight:700}
.pk-bos{background:var(--beyaz);border:1px dashed var(--cizgi);border-radius:var(--yuvarlak);padding:32px;text-align:center;color:var(--soluk)}

.pk-kategoriler{display:flex;flex-wrap:wrap;gap:8px;margin:-8px 0 22px}
.pk-kategori{display:inline-flex;align-items:center;gap:6px;background:var(--beyaz);border:1px solid var(--cizgi);color:var(--metin);padding:7px 14px;border-radius:999px;font-weight:700;font-size:.9rem;transition:background var(--gecis),color var(--gecis),border-color var(--gecis)}
.pk-kategori small{color:var(--soluk);font-weight:700;font-size:.78rem}
.pk-kategori:hover{border-color:var(--turuncu);color:var(--turuncu);text-decoration:none}
.pk-kategori.aktif{background:var(--lacivert);border-color:var(--lacivert);color:var(--beyaz)}
.pk-kategori.aktif small{color:#b8c1d6}
.pk-kart-kategori{margin:0 0 6px;font-size:.78rem;font-weight:800}
.pk-kart-kategori a{color:var(--turuncu)}
.pk-kitap-izgara{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:22px}
.pk-kart{background:var(--beyaz);border-radius:var(--yuvarlak);box-shadow:var(--golge);overflow:hidden;transition:transform var(--gecis),box-shadow var(--gecis)}
.pk-kart:hover{transform:translateY(-4px);box-shadow:var(--golge-buyuk)}
.pk-kart-kapak{position:relative;display:block;aspect-ratio:2/3;background:#e9e6df;overflow:hidden}
.pk-kart-kapak img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.pk-kart:hover .pk-kart-kapak img{transform:scale(1.04)}
.pk-kart-oku{position:absolute;left:50%;bottom:14px;transform:translate(-50%,10px);background:var(--turuncu);color:var(--beyaz);font-weight:800;font-size:.85rem;padding:8px 18px;border-radius:999px;opacity:0;transition:opacity var(--gecis),transform var(--gecis)}
.pk-kart:hover .pk-kart-oku{opacity:1;transform:translate(-50%,0)}
.pk-kart-bilgi{padding:12px 14px 14px}
.pk-kart-yazar{margin:0 0 4px;color:var(--soluk);font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em}
.pk-kart-baslik{margin:0;font-size:1rem;line-height:1.3;font-weight:800}
.pk-kart-baslik a{color:var(--metin)}
.pk-kart-baslik a:hover{color:var(--turuncu);text-decoration:none}

.pk-yol{font-size:.9rem;color:var(--soluk);margin-bottom:20px}
.pk-yol span{margin:0 4px}
.pk-detay-ust{display:grid;grid-template-columns:240px 1fr;gap:36px;background:var(--beyaz);border-radius:var(--yuvarlak);box-shadow:var(--golge);padding:28px}
.pk-detay-kapak img{width:100%;height:auto;border-radius:8px;box-shadow:var(--golge-buyuk)}
.pk-detay-baslik{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:900;line-height:1.15;margin:0 0 6px}
.pk-detay-yazar{color:var(--soluk);font-weight:700;margin:0 0 16px;font-size:1.05rem}
.pk-detay-ozet{list-style:none;padding:0;margin:0 0 20px;display:flex;flex-wrap:wrap;gap:8px 20px;color:var(--soluk);font-size:.9rem}
.pk-detay-ozet strong{color:var(--metin)}
.pk-detay-butonlar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.pk-detay-aciklama{font-size:1.02rem}
.pk-detay-aciklama p{margin:0 0 12px}
.pk-okuyucu{margin-top:32px;background:var(--beyaz);border-radius:var(--yuvarlak);box-shadow:var(--golge);padding:20px}
.pk-okuyucu-bas{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.pk-okuyucu-bas h2{margin:0;font-size:1.3rem;font-weight:900}
.pk-okuyucu iframe{width:100%;height:80vh;min-height:520px;border:1px solid var(--cizgi);border-radius:8px;background:#525659}
.pk-okuyucu:fullscreen{padding:0;border-radius:0}
.pk-okuyucu:fullscreen iframe{height:calc(100vh - 60px);border:0;border-radius:0}
.pk-okuyucu-not{margin:10px 0 0;font-size:.85rem;color:var(--soluk)}

.pk-footer{background:var(--lacivert-koyu);color:#b8c1d6;padding:28px 0;margin-top:24px}
.pk-footer-ic{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;font-size:.9rem}
.pk-footer p{margin:0}
.pk-footer-not{color:#7f8aa5}

@media (max-width:900px){
  .pk-slayt-ic{grid-template-columns:1fr;gap:24px;padding-bottom:64px}
  .pk-slayt-kod{transform:none;max-width:520px}
  .pk-detay-ust{grid-template-columns:1fr;padding:20px}
  .pk-detay-kapak{max-width:220px;margin:0 auto}
}
@media (max-width:600px){
  .pk-slogan{display:none}
  .pk-hero-ok{display:none}
  .pk-hero-slaytlar,.pk-slayt-ic{min-height:0}
  .pk-slayt-ic{padding-top:32px}
  .pk-kategoriler{display:flex;flex-wrap:wrap;gap:8px;margin:-8px 0 22px}
.pk-kategori{display:inline-flex;align-items:center;gap:6px;background:var(--beyaz);border:1px solid var(--cizgi);color:var(--metin);padding:7px 14px;border-radius:999px;font-weight:700;font-size:.9rem;transition:background var(--gecis),color var(--gecis),border-color var(--gecis)}
.pk-kategori small{color:var(--soluk);font-weight:700;font-size:.78rem}
.pk-kategori:hover{border-color:var(--turuncu);color:var(--turuncu);text-decoration:none}
.pk-kategori.aktif{background:var(--lacivert);border-color:var(--lacivert);color:var(--beyaz)}
.pk-kategori.aktif small{color:#b8c1d6}
.pk-kart-kategori{margin:0 0 6px;font-size:.78rem;font-weight:800}
.pk-kart-kategori a{color:var(--turuncu)}
.pk-kitap-izgara{grid-template-columns:repeat(2,1fr);gap:14px}
  .pk-bolum{padding:32px 0}
  .pk-okuyucu iframe{height:70vh;min-height:420px}
}
.pk-kategori-aciklama{color:var(--soluk);margin:-8px 0 22px;max-width:760px}