/* =====================================================================
 * css/kutuphane.css — Dijital PDF kütüphanesi (geçiş 206, 22 Ekim 2026).
 *
 * Sayfalar: kutuphane.php (vitrin, kategori ve arama), kutuphane-kitap.php
 * (kitap), kutuphane-oku.php (okuyucu, .kto). Renkler temadan: --birincil
 * lacivert, --vurgu altın, koyu bantlar --kb-gece. Kitabın kendi rengi --kr
 * (kapağın baskın rengi, kutuphane_renk()).
 *
 * HAREKET: 3B kitaplar ElMustafa'nın sesli kitap kitaplığından (css/sesli.css
 * .sk-k3, .sk-yelpaze) bu siteye uyarlandı. Fareyle eğme yalnız fareli
 * cihazda (hover: hover); hareket azaltılmışsa yelpaze, süzülme, belirme ve
 * eğme kapanır, yalnız sade solma kalır.
 * ===================================================================== */

.kt { --kt-ease: cubic-bezier(.2, .7, .2, 1); --kt-kapak-oran: 5 / 7; padding-bottom: 56px; }
.kt h2, .kt h3 { font-family: var(--yz-kitap); }

/* ---------- 3B kitap: ön kapak, sayfa kenarı, arka kapak ---------- */
.kt-k3 {
  --k3-y: calc(var(--k3-g) * 7 / 5); --k3-d: calc(var(--k3-g) * var(--k3-o, .1));
  --k3-ry: -26deg; --k3-rx: 4deg;
  position: relative; display: block; width: var(--k3-g); height: var(--k3-y);
  transform-style: preserve-3d; transform: rotateY(var(--k3-ry)) rotateX(var(--k3-rx));
  transition: transform .9s var(--kt-ease);
}
.kt-k3-on {
  position: absolute; inset: 0; display: grid; place-items: center; overflow: hidden;
  transform: translateZ(calc(var(--k3-d) / 2));
  border-radius: 2px 6px 6px 2px; background: color-mix(in srgb, var(--kr, #1f4f7a) 55%, #001a30);
  box-shadow: 0 1px 0 rgba(255, 255, 255, .08) inset,
              -14px 18px 46px 0 rgba(0, 12, 24, .55), -4px 30px 80px 6px color-mix(in srgb, var(--kr, #1f4f7a) 45%, transparent);
}
.kt-k3-on img { width: 100%; height: 100%; object-fit: cover; display: block; }
.kt-k3-on::after {            /* sırt kıvrımı ve ışık */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, .35) 0, rgba(255, 255, 255, .25) 2%, rgba(0, 0, 0, .12) 4%, transparent 8%),
    linear-gradient(120deg, rgba(255, 255, 255, .2), transparent 35%);
}
.kt-k3::before {              /* sayfa kenarı */
  content: ""; position: absolute; top: 4px; left: 0; width: var(--k3-d); height: calc(var(--k3-y) - 8px);
  transform: translateX(calc(var(--k3-g) - var(--k3-d) / 2 - 4px)) rotateY(90deg);
  background: repeating-linear-gradient(90deg, #f6f3ec 0 1px, #dcd6ca 1px 2px, #f0ebe1 2px 3px);
  box-shadow: inset 0 0 12px rgba(0, 0, 0, .25);
}
.kt-k3::after {               /* arka kapak */
  content: ""; position: absolute; inset: 0; transform: translateZ(calc(var(--k3-d) / -2)) rotateY(180deg);
  -webkit-backface-visibility: hidden; backface-visibility: hidden;
  border-radius: 6px 2px 2px 6px; background: color-mix(in srgb, var(--kr, #1f4f7a) 55%, #001a30);
}
/* Kapağı olmayan kitap: kapağa başlık basılır (ilk sayfa kapak olana kadar). */
.kt-k3-on .yok, .kt-kapak .yok {
  display: grid; place-items: center; width: 100%; height: 100%; padding: 14% 12%; text-align: center;
  background: linear-gradient(160deg, color-mix(in srgb, var(--kr, #1f4f7a) 70%, #002a4d), #001a30);
  box-shadow: inset 0 0 0 1px rgba(207, 163, 73, .35), inset 0 0 0 7px rgba(0, 0, 0, .15), inset 0 0 0 8px rgba(207, 163, 73, .25);
}
.kt-k3-on .yok b, .kt-kapak .yok b {
  font-family: var(--yz-kitap); font-weight: 600; color: #f3ecdf; font-size: clamp(13px, 1.2vw, 17px); line-height: 1.3;
  display: -webkit-box; -webkit-line-clamp: 5; -webkit-box-orient: vertical; overflow: hidden; overflow-wrap: anywhere;
}

/* ---------- Düz kapak (kart) ---------- */
.kt-kapak {
  position: relative; display: block; aspect-ratio: var(--kt-kapak-oran); overflow: hidden;
  border-radius: 3px 7px 7px 3px; background: color-mix(in srgb, var(--kr, #1f4f7a) 55%, #001a30);
  box-shadow: 0 1px 1px rgba(0, 20, 40, .12), 0 14px 26px -16px rgba(0, 20, 40, .55);
}
.kt-kapak img { width: 100%; height: 100%; object-fit: cover; display: block; }
.kt-kapak::after {            /* sırt kıvrımı + üstünden geçen ışık */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, .3) 0, rgba(255, 255, 255, .2) 2.4%, rgba(0, 0, 0, .12) 4.6%, transparent 9%),
    linear-gradient(105deg, transparent 30%, rgba(255, 255, 255, .28) 45%, transparent 60%) no-repeat;
  background-size: 100% 100%, 260% 100%; background-position: 0 0, 160% 0;
  transition: background-position .9s var(--kt-ease);
}

/* ---------- Vitrin sahnesi (lacivert bant) ---------- */
.kt-sahne {
  position: relative; overflow: hidden; color: #f3ecdf; margin: 0 0 34px;
  background:
    radial-gradient(60% 80% at 78% 40%, color-mix(in srgb, var(--kr, #1f4f7a) 38%, transparent), transparent 70%),
    radial-gradient(50% 60% at 10% 110%, rgba(207, 163, 73, .14), transparent 70%),
    linear-gradient(160deg, var(--kb-gece-2), var(--kb-gece));
  transition: background .9s ease;
}
.kt-sahne::before {           /* ince geometrik desen */
  content: ""; position: absolute; inset: 0; opacity: .07; pointer-events: none;
  background-image: radial-gradient(circle at 1px 1px, #f3ecdf 1px, transparent 1.3px); background-size: 22px 22px;
  -webkit-mask-image: linear-gradient(90deg, #000, transparent 70%); mask-image: linear-gradient(90deg, #000, transparent 70%);
}
.kt-sahne-ic {
  position: relative; max-width: var(--kap); margin: 0 auto; padding: 46px var(--kap-bosluk) 40px;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 28px; align-items: center;
}
.kt-sahne .kb-kirinti a, .kt-sahne .kb-kirinti span { color: rgba(243, 236, 223, .72); }
.kt-sahne-etiket { margin: 0 0 10px; font-size: 12.5px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--vurgu); display: flex; align-items: center; gap: 8px; }
.kt-sahne-etiket::before { content: ""; width: 7px; height: 7px; background: var(--vurgu); transform: rotate(45deg); }
.kt-sahne h1 { margin: 0 0 12px; font-family: var(--yz-kitap); font-weight: 600; font-size: clamp(30px, 4.2vw, 50px); line-height: 1.08; letter-spacing: -.01em; color: #fff; }
.kt-sahne-alt { margin: 0 0 22px; max-width: 52ch; font-size: clamp(15px, 1.4vw, 17px); line-height: 1.6; color: rgba(243, 236, 223, .82); }
.kt-ara { display: flex; max-width: 520px; border-radius: 12px; overflow: hidden; background: rgba(255, 255, 255, .08); border: 1px solid rgba(243, 236, 223, .22); }
.kt-ara:focus-within { border-color: var(--vurgu); box-shadow: 0 0 0 3px rgba(207, 163, 73, .25); }
.kt-ara input { flex: 1; min-width: 0; min-height: 50px; padding: 0 16px; border: 0; background: transparent; color: #fff; font: inherit; font-size: 15.5px; }
.kt-ara input::placeholder { color: rgba(243, 236, 223, .6); }
.kt-ara input:focus { outline: none; }
.kt-ara button { display: inline-flex; align-items: center; gap: 7px; padding: 0 18px; border: 0; background: var(--vurgu); color: #14202c; font: inherit; font-weight: 700; font-size: 14.5px; cursor: pointer; }
.kt-ara button svg { width: 17px; height: 17px; }
.kt-sayim { display: flex; flex-wrap: wrap; gap: 10px 30px; margin: 26px 0 0; }
.kt-sayim div { display: grid; }
.kt-sayim dd { order: 1; margin: 0; font-family: var(--yz-kitap); font-size: clamp(26px, 3vw, 34px); font-weight: 600; color: #fff; font-variant-numeric: lining-nums tabular-nums; }
.kt-sayim dt { order: 2; font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: rgba(243, 236, 223, .62); }

/* Yelpaze: öndeki kitap düz, arkadakiler sağa ve derine */
.kt-yelpaze { position: relative; height: 430px; perspective: 1500px; perspective-origin: 35% 40%; }
.kt-yelpaze-kitap {
  position: absolute; left: 46%; top: 47%; margin: 0; padding: 0; border: 0; background: none; cursor: pointer; color: inherit;
  transform-style: preserve-3d; transition: transform .9s var(--kt-ease), opacity .7s ease, filter .7s ease;
  --x: 0px; --z: 0px; --ry: 0deg; --s: 1;
  transform: translate(-50%, -50%) translate3d(var(--x), 0, var(--z)) rotateY(var(--ry)) scale(var(--s));
}
.kt-yelpaze-kitap .kt-k3 { --k3-ry: -24deg; --k3-rx: 3deg; }
.kt-yelpaze-kitap[data-konum="0"] { z-index: 5; }
.kt-yelpaze-kitap[data-konum="0"] .kt-k3 { animation: kt-suzul 7s ease-in-out infinite; }
.kt-yelpaze-kitap[data-konum="1"] { --x: 170px; --z: -280px; --ry: -4deg; z-index: 4; filter: brightness(.62) saturate(.85); }
.kt-yelpaze-kitap[data-konum="2"] { --x: -170px; --z: -340px; --ry: 16deg; z-index: 3; filter: brightness(.5) saturate(.8); }
.kt-yelpaze-kitap[data-konum="3"] { --x: 290px; --z: -600px; --ry: -8deg; z-index: 2; filter: brightness(.36); }
.kt-yelpaze-kitap[data-konum="gizli"] { --x: -300px; --z: -680px; opacity: 0; pointer-events: none; }
.kt-yelpaze-kitap:hover:not([data-konum="0"]) { filter: brightness(.85); }
.kt-yelpaze-kitap:focus-visible { outline: 2px solid var(--vurgu); outline-offset: 8px; border-radius: 6px; }
@keyframes kt-suzul { 0%, 100% { transform: rotateY(-24deg) rotateX(3deg) translateY(0); } 50% { transform: rotateY(-19deg) rotateX(2deg) translateY(-12px); } }
.kt-yelpaze::after {          /* kitabın altına düşen ışık */
  content: ""; position: absolute; left: 46%; top: 86%; width: 340px; height: 56px; transform: translateX(-56%);
  background: radial-gradient(closest-side, color-mix(in srgb, var(--kr, #1f4f7a) 75%, transparent), transparent);
  filter: blur(14px); opacity: .85; pointer-events: none; transition: background .9s;
}
.kt-yelpaze-yazi { position: absolute; left: 0; right: 0; bottom: -4px; text-align: center; }
.kt-yelpaze-yazi a { color: #fff; text-decoration: none; display: inline-grid; gap: 2px; max-width: 360px; }
.kt-yelpaze-yazi b { font-family: var(--yz-kitap); font-size: 18px; font-weight: 600; line-height: 1.25; }
.kt-yelpaze-yazi small { font-size: 13.5px; color: rgba(243, 236, 223, .7); }
.kt-yelpaze-yazi a:hover b { text-decoration: underline; text-decoration-color: var(--vurgu); text-underline-offset: 4px; }
.kt-noktalar { display: flex; justify-content: center; gap: 8px; margin-top: 10px; }
.kt-noktalar button { width: 9px; height: 9px; padding: 0; border: 0; border-radius: 50%; background: rgba(243, 236, 223, .3); cursor: pointer; transition: background .2s, transform .2s; }
.kt-noktalar button[aria-current] { background: var(--vurgu); transform: scale(1.3); }

/* ---------- Kategori şeridi ---------- */
.kt-katlar { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 30px; padding: 0; list-style: none; }
.kt-katlar a {
  display: inline-flex; align-items: center; gap: 8px; min-height: 40px; padding: 0 15px; border-radius: 999px;
  border: 1px solid var(--cizgi); background: var(--yuzey); color: var(--murekkep); text-decoration: none; font-size: 14.5px; font-weight: 600;
  transition: border-color .2s, background-color .2s, transform .25s var(--kt-ease);
}
.kt-katlar a span { font-size: 12px; font-weight: 700; color: var(--murekkep-2); font-variant-numeric: tabular-nums; }
.kt-katlar a:hover { border-color: var(--birincil); transform: translateY(-2px); }
.kt-katlar a[aria-current] { background: var(--birincil); border-color: var(--birincil); color: #fff; }
.kt-katlar a[aria-current] span { color: rgba(255, 255, 255, .75); }

/* ---------- Raf ---------- */
.kt-raf { margin: 0 0 40px; --kg: 150px; }
.kt-raf-bas { display: flex; align-items: baseline; gap: 12px; margin-bottom: 6px; }
.kt-raf-bas h2 { margin: 0; font-size: clamp(22px, 2.3vw, 28px); font-weight: 600; color: var(--murekkep); letter-spacing: -.01em; }
.kt-raf-bas .sayi { font-size: 13px; color: var(--murekkep-2); font-variant-numeric: tabular-nums; }
.kt-raf-bas .hepsi { margin-left: auto; display: inline-flex; align-items: center; gap: 5px; font-size: 14px; font-weight: 700; color: var(--birincil); text-decoration: none; white-space: nowrap; }
.kt-raf-bas .hepsi:hover { text-decoration: underline; text-underline-offset: 3px; }
.kt-raf-bas .oklar { display: none; gap: 6px; }
.kt-ok { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--cizgi); background: var(--yuzey); color: var(--murekkep);
  display: grid; place-items: center; cursor: pointer; padding: 0; transition: border-color .15s, opacity .15s; }
.kt-ok:hover:not(:disabled) { border-color: var(--birincil); }
.kt-ok:disabled { opacity: .35; cursor: default; }
.kt-ok svg { width: 17px; height: 17px; }
/* Kitapların durduğu tahta: kapakların tam altında bir çizgi ve gölgesi; raf kaysa da yerinde. */
.kt-raf-sira {
  --kh: calc(var(--kg) * 7 / 5); --ust: 22px;
  display: grid; grid-auto-flow: column; grid-auto-columns: var(--kg); gap: 22px;
  overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x proximity; scroll-padding-inline: 2px;
  padding: var(--ust) 2px 10px; scrollbar-width: none; margin: 0; list-style: none;
  background:
    linear-gradient(180deg,
      transparent calc(var(--ust) + var(--kh) + 2px),
      color-mix(in srgb, var(--birincil) 22%, var(--cizgi)) calc(var(--ust) + var(--kh) + 2px),
      color-mix(in srgb, var(--birincil) 10%, var(--yuzey)) calc(var(--ust) + var(--kh) + 9px),
      rgba(0, 26, 48, .14) calc(var(--ust) + var(--kh) + 10px),
      transparent calc(var(--ust) + var(--kh) + 26px));
}
.kt-raf-sira::-webkit-scrollbar { display: none; }
.kt-raf-sira > li { scroll-snap-align: start; }

/* ---------- Kart ---------- */
.kt-kart { display: grid; gap: 4px; align-content: start; text-decoration: none; color: var(--murekkep); }
.kt-kart .kt-kapak { transform-origin: 40% 100%; transition: transform .45s var(--kt-ease), box-shadow .45s var(--kt-ease); margin-bottom: 18px; }
.kt-kart .ad { font-family: var(--yz-kitap); font-weight: 600; font-size: 15.5px; line-height: 1.3;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; overflow-wrap: anywhere; }
.kt-kart .yz { font-size: 13.5px; color: var(--murekkep-2); line-height: 1.35;
  display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.kt-kart .olcu { font-size: 12px; color: var(--murekkep-2); font-variant-numeric: tabular-nums; }
.kt-kart:focus-visible { outline: none; }
.kt-kart:focus-visible .ad { text-decoration: underline; text-decoration-color: var(--vurgu); text-underline-offset: 4px; }
.kt-kart:focus-visible .kt-kapak { box-shadow: 0 0 0 3px var(--vurgu), 0 14px 26px -16px rgba(0, 20, 40, .55); }
@media (hover: hover) {
  .kt-kart:hover .kt-kapak {
    transform: translateY(-12px) rotate(-1.6deg);
    box-shadow: 0 30px 40px -22px rgba(0, 20, 40, .7), 0 18px 40px -18px color-mix(in srgb, var(--kr, #1f4f7a) 80%, transparent);
  }
  .kt-kart:hover .kt-kapak::after { background-position: 0 0, -60% 0; }
}

/* ---------- Izgara (kategori ve arama) ---------- */
.kt-izgara { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px 16px; margin: 0; padding: 0; list-style: none; }
@media (min-width: 560px) { .kt-izgara { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 32px 24px; } }

.kt-suzgec { display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; margin: 0 0 26px; padding: 14px; border: 1px solid var(--cizgi); border-radius: 14px; background: var(--yuzey); }
.kt-suzgec input, .kt-suzgec select { width: 100%; min-height: 44px; padding: 0 12px; border: 1px solid var(--cizgi); border-radius: 10px; background: var(--zemin); color: var(--murekkep); font: inherit; font-size: 15px; }
.kt-suzgec input:focus, .kt-suzgec select:focus { outline: 2px solid color-mix(in srgb, var(--birincil) 40%, transparent); border-color: var(--birincil); }
.kt-suzgec button { min-height: 44px; padding: 0 20px; border: 0; border-radius: 10px; background: var(--birincil); color: #fff; font: inherit; font-weight: 700; cursor: pointer; }
.kt-suzgec .temizle { align-self: center; font-size: 14px; color: var(--murekkep-2); text-align: center; }
@media (min-width: 760px) { .kt-suzgec { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr) auto auto; align-items: center; } }
.kt-sonuc { margin: -10px 0 22px; font-size: 14.5px; color: var(--murekkep-2); }
.kt-bos { padding: 40px 20px; text-align: center; border: 1px dashed var(--cizgi); border-radius: 16px; color: var(--murekkep-2); background: var(--yuzey); }
.kt-bos b { display: block; margin-bottom: 6px; font-family: var(--yz-kitap); font-size: 20px; color: var(--murekkep); }

.kt-sayfalama { display: flex; justify-content: center; align-items: center; gap: 14px; margin-top: 34px; font-size: 15px; }
.kt-sayfalama a { color: var(--birincil); font-weight: 700; text-decoration: none; }
.kt-sayfalama .pasif { color: var(--murekkep-2); opacity: .5; }

/* ---------- Kitap sayfası ---------- */
.kt-kitap { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0; margin: 0 0 44px; border-radius: 22px; overflow: hidden; border: 1px solid var(--cizgi); background: var(--yuzey); }
.kt-kitap-sahne {
  position: relative; display: grid; place-items: center; min-height: 380px; padding: 40px 20px; perspective: 1400px;
  background:
    radial-gradient(55% 55% at 50% 45%, color-mix(in srgb, var(--kr, #1f4f7a) 45%, transparent), transparent 75%),
    linear-gradient(160deg, var(--kb-gece-2), var(--kb-gece));
}
.kt-kitap-sahne::after {
  content: ""; position: absolute; left: 50%; bottom: 34px; width: 260px; height: 40px; transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(0, 0, 0, .55), transparent); filter: blur(8px); pointer-events: none;
}
/* `backwards`: animasyon bitince dönüşü yine --k3-ry/--k3-rx yönetir (fareyi izleme). */
.kt-kitap-sahne .kt-k3 { z-index: 1; animation: kt-gir 1.1s var(--kt-ease) backwards; transition: transform .4s var(--kt-ease); }
@keyframes kt-gir { from { opacity: 0; transform: rotateY(-70deg) rotateX(8deg) translateY(30px); } }
.kt-kitap-bilgi { padding: 26px 20px 30px; display: grid; gap: 14px; align-content: start; }
.kt-kitap-bilgi .kat { font-size: 12.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--birincil); text-decoration: none; }
.kt-kitap-bilgi h1 { margin: 0; font-family: var(--yz-kitap); font-weight: 600; font-size: clamp(26px, 3.4vw, 40px); line-height: 1.15; color: var(--murekkep); overflow-wrap: anywhere; }
.kt-kitap-bilgi .yazar { margin: -4px 0 0; font-size: 17px; color: var(--murekkep-2); }
.kt-kitap-bilgi .yazar b { color: var(--murekkep); font-weight: 600; }
.kt-kunye { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; margin: 4px 0 0; border-top: 1px solid var(--cizgi); }
.kt-kunye div { padding: 11px 0; border-bottom: 1px solid var(--cizgi); }
.kt-kunye dt { font-size: 11.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--murekkep-2); }
.kt-kunye dd { margin: 2px 0 0; font-size: 15px; color: var(--murekkep); overflow-wrap: anywhere; }
.kt-aciklama { margin: 0; max-width: var(--olcu); font-size: 15.5px; line-height: 1.7; color: var(--murekkep); white-space: pre-line; overflow-wrap: anywhere; }
.kt-eylem { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin-top: 4px; }
.kt-oku {
  display: inline-flex; align-items: center; gap: 9px; min-height: 52px; padding: 0 26px; border-radius: 12px;
  background: var(--birincil); color: #fff; font-weight: 700; font-size: 16px; text-decoration: none;
  box-shadow: 0 10px 24px -12px color-mix(in srgb, var(--birincil) 80%, transparent);
  transition: transform .25s var(--kt-ease), box-shadow .25s var(--kt-ease);
}
.kt-oku svg { width: 19px; height: 19px; }
.kt-oku:hover { transform: translateY(-2px); box-shadow: 0 16px 30px -14px color-mix(in srgb, var(--birincil) 90%, transparent); }
.kt-oku--ikincil { background: transparent; color: var(--birincil); border: 1.5px solid var(--birincil); box-shadow: none; }
.kt-not { font-size: 14px; color: var(--murekkep-2); }
.kt-not--uyari { padding: 12px 14px; border-radius: 12px; background: color-mix(in srgb, var(--vurgu) 14%, var(--yuzey)); color: var(--murekkep); border: 1px solid color-mix(in srgb, var(--vurgu) 45%, var(--cizgi)); }
.kt-onizleme { padding: 10px 14px; border-radius: 12px; background: color-mix(in srgb, var(--birincil) 8%, var(--yuzey)); border: 1px dashed var(--birincil); font-size: 14px; color: var(--murekkep); }
@media (min-width: 860px) {
  .kt-kitap { grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); }
  .kt-kitap-sahne { min-height: 560px; }
  .kt-kitap-bilgi { padding: 44px 44px 40px; }
}

/* ---------- Kaydırınca belirme (js/kutuphane.js .gorundu ekler) ---------- */
.js .kt-belir { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .7s var(--kt-ease); transition-delay: calc(var(--i, 0) * 60ms); }
.js .kt-belir.gorundu { opacity: 1; transform: none; }

/* ---------- Telefon ---------- */
@media (max-width: 859px) {
  .kt-sahne-ic { grid-template-columns: minmax(0, 1fr); padding: 30px 16px 22px; gap: 6px; }
  .kt-yelpaze { height: 330px; perspective: 1100px; }
  .kt-yelpaze .kt-k3 { --k3-g: 150px !important; }
  .kt-yelpaze-kitap[data-konum="1"] { --x: 110px; --z: -240px; }
  .kt-yelpaze-kitap[data-konum="2"] { --x: -110px; --z: -280px; }
  .kt-yelpaze-kitap[data-konum="3"] { --x: 170px; --z: -480px; }
  .kt-yelpaze::after { width: 240px; }
  .kt-raf { --kg: 128px; }
  .kt-raf-bas .sayi { display: none; }   /* dar ekranda başlık iki satıra kırılıyordu */
  .kt-raf-sira { gap: 16px; }
  .kt-katlar { flex-wrap: nowrap; overflow-x: auto; margin-inline: calc(var(--kap-bosluk) * -1); padding-inline: var(--kap-bosluk); scrollbar-width: none; }
  .kt-katlar::-webkit-scrollbar { display: none; }
  .kt-katlar a { white-space: nowrap; }
  .kt-kitap-sahne .kt-k3 { --k3-g: 170px !important; }
}
@media (min-width: 860px) { .kt-raf-bas .oklar { display: flex; } }

/* ---------- Hareket azaltılmış ---------- */
@media (prefers-reduced-motion: reduce) {
  .kt-yelpaze-kitap, .kt-k3, .kt-kart .kt-kapak, .kt-katlar a, .kt-oku { transition: opacity .3s ease !important; }
  .kt-yelpaze-kitap[data-konum="0"] .kt-k3, .kt-kitap-sahne .kt-k3 { animation: none !important; }
  .js .kt-belir { transform: none; transition: opacity .3s ease; transition-delay: 0s; }
  .kt-kart:hover .kt-kapak { transform: none; }
}

/* =====================================================================
 * Okuyucu (kutuphane-oku.php): sayfalar alt alta, üstte ince araç çubuğu.
 * ===================================================================== */
.kto-govde { margin: 0; min-height: 100vh; background: #e9edf2; color: var(--murekkep); font-family: var(--yz-metin); }
.kto-govde.gece { background: #0b1520; color: #e6ebf1; }
.kto-cubuk {
  position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 8px; min-height: 56px; padding: 6px 12px;
  background: color-mix(in srgb, var(--kb-gece) 96%, transparent); color: #f3ecdf; box-shadow: 0 6px 18px -10px rgba(0, 0, 0, .6);
}
.kto-geri { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 10px; color: #f3ecdf; text-decoration: none; flex: none; }
.kto-geri:hover { background: rgba(255, 255, 255, .1); }
.kto-geri svg { width: 20px; height: 20px; }
.kto-baslik { min-width: 0; flex: 1; display: grid; }
.kto-baslik b { font-family: var(--yz-kitap); font-weight: 600; font-size: 15.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.kto-baslik small { font-size: 12.5px; color: rgba(243, 236, 223, .65); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.kto-sayfa { display: flex; align-items: center; gap: 6px; font-size: 14px; font-variant-numeric: tabular-nums; flex: none; }
.kto-sayfa, .kto-sayfa span { color: #f3ecdf; margin: 0; }   /* çekirdek label rengini ezer */
.kto-sayfa input { width: 58px; min-height: 36px; padding: 0 6px; border: 1px solid rgba(243, 236, 223, .3); border-radius: 8px; background: rgba(255, 255, 255, .08); color: #fff; font: inherit; text-align: center; }
.kto-arac { display: flex; gap: 4px; flex: none; }
.kto-arac button { display: grid; place-items: center; width: 40px; height: 40px; padding: 0; border: 0; border-radius: 10px; background: transparent; color: #f3ecdf; cursor: pointer; }
.kto-arac button:hover, .kto-arac .kto-indir:hover { background: rgba(255, 255, 255, .1); }
.kto-arac .kto-indir { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px; color: #f3ecdf; }
.kto-arac button[aria-pressed="true"] { background: rgba(207, 163, 73, .25); color: var(--vurgu); }
.kto-arac svg { width: 19px; height: 19px; }
.kto-ilerleme { position: absolute; left: 0; bottom: 0; height: 3px; background: var(--vurgu); width: 0; transition: width .3s ease; }
.kto-sayfalar { --kto-gen: min(100%, 900px); display: grid; justify-items: center; gap: 14px; padding: 18px 8px 80px; }
.kto-s {
  position: relative; width: var(--kto-gen); aspect-ratio: var(--kto-oran, 1 / 1.414); border-radius: 3px; overflow: hidden;
  background: #fff; box-shadow: 0 1px 2px rgba(0, 20, 40, .12), 0 10px 30px -18px rgba(0, 20, 40, .45);
  -webkit-user-select: none; user-select: none; scroll-margin-top: 66px;
}
.kto-s::before {              /* yüklenirken parıltı */
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, transparent 30%, rgba(0, 42, 77, .06) 50%, transparent 70%) #f6f8fa; background-size: 220% 100%;
  animation: kto-parilti 1.4s linear infinite;
}
.kto-s.yuklendi::before { display: none; }
.kto-s img { position: relative; display: block; width: 100%; height: 100%; object-fit: contain; -webkit-user-drag: none; pointer-events: none; }
.kto-s .no { position: absolute; right: 8px; bottom: 6px; z-index: 1; font-size: 11px; color: rgba(0, 20, 40, .45); font-variant-numeric: tabular-nums; }
@keyframes kto-parilti { from { background-position: 120% 0; } to { background-position: -120% 0; } }
.kto-govde.gece .kto-s { background: #1a2633; box-shadow: none; }
.kto-govde.gece .kto-s img { filter: invert(.9) hue-rotate(180deg) brightness(.95); }
.kto-govde.gece .kto-s::before { background-color: #142130; }
.kto-hazir-degil { max-width: 560px; margin: 60px auto; padding: 0 16px; text-align: center; font-size: 16px; line-height: 1.6; }
@media (max-width: 620px) {
  .kto-baslik small { display: none; }
  .kto-sayfa .toplam-uzun { display: none; }
  .kto-arac .masaustu { display: none; }
  .kto-sayfalar { padding: 10px 0 70px; gap: 8px; }
  .kto-s { border-radius: 0; }
}
@media print { .kto-sayfalar, .kto-cubuk { display: none !important; } .kto-govde::after { content: attr(data-baski); display: block; padding: 40px; font-size: 18px; } }
@media (prefers-reduced-motion: reduce) { .kto-s::before { animation: none; } }

/* ---------- Boş kütüphane (henüz kitap yok): kategoriler kitap sırtı olarak ---------- */
.kt-yelpaze-bos { display: inline-grid; gap: 2px; color: #fff; }
.kt-yelpaze-bos b { font-family: var(--yz-kitap); font-size: 18px; font-weight: 600; }
.kt-yelpaze-bos small { font-size: 13.5px; color: var(--vurgu); }
.kt-hazirlik { display: grid; gap: 26px; }
.kt-hazirlik-bas { max-width: 62ch; }
.kt-hazirlik-bas h2 { margin: 0 0 8px; font-size: clamp(24px, 2.6vw, 30px); font-weight: 600; color: var(--murekkep); }
.kt-hazirlik-bas p { margin: 0 0 16px; font-size: 15.5px; line-height: 1.65; color: var(--murekkep-2); }
.kt-katkartlar { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin: 0; padding: 0; list-style: none; }
@media (min-width: 760px) { .kt-katkartlar { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; } }
.kt-katkart {
  position: relative; display: grid; grid-template-columns: auto minmax(0, 1fr); grid-template-rows: auto auto; column-gap: 14px; align-items: center;
  padding: 16px; border-radius: 14px; border: 1px solid var(--cizgi); background: var(--yuzey);
  transition: transform .35s var(--kt-ease), box-shadow .35s var(--kt-ease), border-color .2s;
}
.kt-katkart .sirt { grid-row: 1 / 3; display: flex; align-items: flex-end; gap: 3px; height: 54px; }
.kt-katkart .sirt i { display: block; width: 11px; border-radius: 2px 2px 1px 1px; background: var(--kr); box-shadow: inset -3px 0 0 rgba(0, 0, 0, .18), inset 0 6px 0 rgba(207, 163, 73, .55); }
.kt-katkart .sirt i:nth-child(1) { height: 100%; }
.kt-katkart .sirt i:nth-child(2) { height: 82%; filter: brightness(1.15); }
.kt-katkart .sirt i:nth-child(3) { height: 92%; filter: brightness(.85); transform: rotate(6deg); transform-origin: bottom left; }
.kt-katkart .ad { font-family: var(--yz-kitap); font-weight: 600; font-size: 16px; line-height: 1.25; color: var(--murekkep); overflow-wrap: anywhere; }
.kt-katkart .not { font-size: 12.5px; color: var(--murekkep-2); }
@media (hover: hover) { .kt-katkart:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--kr) 45%, var(--cizgi)); box-shadow: 0 16px 30px -20px color-mix(in srgb, var(--kr) 80%, transparent); } }
a.kt-katkart { text-decoration: none; height: 100%; box-sizing: border-box; }
a.kt-katkart:focus-visible { outline: 2px solid var(--vurgu); outline-offset: 2px; }

/* =====================================================================
 * Okuyucu: vurgu, not, yer imi, işaretlerim (geçiş 210)
 * ===================================================================== */
.kto-katman { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.kto-v {
  position: absolute; padding: 0; border: 0; border-radius: 2px; cursor: pointer; pointer-events: auto;
  mix-blend-mode: multiply; transition: box-shadow .15s, opacity .2s;
}
.kto-v.r-sari  { background: rgba(255, 212, 0, .42); }
.kto-v.r-yesil { background: rgba(70, 200, 95, .36); }
.kto-v.r-mavi  { background: rgba(60, 150, 255, .32); }
.kto-v.r-pembe { background: rgba(255, 95, 170, .32); }
.kto-v:hover, .kto-v:focus-visible { box-shadow: 0 0 0 2px rgba(0, 42, 77, .45); outline: none; }
.kto-v.notlu::after { content: ""; position: absolute; right: -5px; top: -5px; width: 10px; height: 10px; border-radius: 50%; background: var(--vurgu); box-shadow: 0 0 0 2px #fff; }
.kto-v.gecici { pointer-events: none; opacity: .8; }
.kto-v.bekliyor { opacity: .55; }
.kto-govde.gece .kto-v { mix-blend-mode: normal; opacity: .55; }
.kto-govde.vurgu-kipi .kto-s { cursor: crosshair; touch-action: none; }
.kto-govde.vurgu-kipi .kto-s img { -webkit-user-select: none; user-select: none; }
/* yer imi kurdelesi */
.kto-s.yerimi::after {
  content: ""; position: absolute; top: 0; right: 18px; z-index: 2; width: 18px; height: 30px;
  background: var(--vurgu); clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 75%, 0 100%);
}
/* renk seçici (vurgu kipinde çubuğun altında) */
.kto-renkler {
  position: absolute; right: 12px; top: calc(100% + 8px); display: flex; align-items: center; gap: 8px; padding: 8px 12px;
  border-radius: 999px; background: var(--kb-gece); color: #f3ecdf; box-shadow: 0 10px 24px -10px rgba(0, 0, 0, .6); font-size: 12.5px;
}
.kto-renkler[hidden] { display: none; }
.kto-renkler button, .kto-not-renk button { width: 26px; height: 26px; padding: 0; border-radius: 50%; border: 2px solid transparent; cursor: pointer; }
.kto-renkler button[aria-pressed="true"], .kto-not-renk button[aria-pressed="true"] { border-color: #fff; box-shadow: 0 0 0 2px var(--vurgu); }
.r-sari { background: #ffd400; } .r-yesil { background: #46c85f; } .r-mavi { background: #3c96ff; } .r-pembe { background: #ff5faa; }
.kto-v.r-sari, .kto-v.r-yesil, .kto-v.r-mavi, .kto-v.r-pembe { border: 0; }
/* not kutusu */
.kto-not {
  position: fixed; z-index: 20; width: min(320px, calc(100vw - 16px)); display: grid; gap: 10px; padding: 12px;
  border-radius: 14px; background: var(--yuzey); color: var(--murekkep); box-shadow: 0 18px 40px -14px rgba(0, 20, 40, .55); border: 1px solid var(--cizgi);
}
.kto-not[hidden] { display: none; }
.kto-not-renk { display: flex; gap: 8px; }
.kto-not textarea { width: 100%; box-sizing: border-box; min-height: 70px; padding: 8px 10px; border: 1px solid var(--cizgi); border-radius: 10px; font: inherit; font-size: 14px; resize: vertical; background: var(--zemin); color: var(--murekkep); }
.kto-not-alt { display: flex; justify-content: space-between; gap: 8px; }
.kto-not-alt button { min-height: 36px; padding: 0 14px; border-radius: 9px; font: inherit; font-weight: 700; font-size: 13.5px; cursor: pointer; }
.kto-not-alt .sil { border: 1px solid var(--cizgi); background: transparent; color: var(--hata); }
.kto-not-alt .kaydet { border: 0; background: var(--birincil); color: #fff; }
/* işaretlerim paneli */
.kto-yan {
  position: fixed; top: 56px; right: 0; bottom: 0; z-index: 15; width: min(340px, 100vw); overflow-y: auto;
  background: var(--yuzey); color: var(--murekkep); border-left: 1px solid var(--cizgi); box-shadow: -14px 0 30px -18px rgba(0, 20, 40, .5);
}
.kto-yan[hidden] { display: none; }
.kto-yan-bas { position: sticky; top: 0; display: flex; align-items: center; justify-content: space-between; padding: 12px 14px; background: var(--yuzey); border-bottom: 1px solid var(--cizgi); }
.kto-yan-bas b { font-family: var(--yz-kitap); font-size: 17px; }
.kto-yan-bas button { width: 36px; height: 36px; border: 0; background: transparent; color: var(--murekkep); cursor: pointer; border-radius: 8px; }
.kto-yan-bas svg { width: 18px; height: 18px; }
.kto-yan-ic { padding: 6px 14px 24px; }
.kto-yan-ic h3 { margin: 16px 0 8px; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--murekkep-2); }
.kto-yan-ic h3 small { margin-left: 4px; font-weight: 700; color: var(--birincil); }
.kto-yan-ic ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.kto-yan-ic li button { width: 100%; display: grid; grid-template-columns: auto 1fr; gap: 2px 10px; align-items: center; text-align: left; padding: 9px 10px; border: 1px solid var(--cizgi); border-radius: 10px; background: var(--zemin); color: var(--murekkep); font: inherit; font-size: 14px; cursor: pointer; }
.kto-yan-ic li button:hover { border-color: var(--birincil); }
.kto-yan-ic li em { grid-column: 2; font-style: normal; font-size: 13px; color: var(--murekkep-2); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.kto-yan-ic .nokta { width: 12px; height: 12px; border-radius: 3px; grid-row: span 2; }
.kto-yan-ic .yi { width: 10px; height: 16px; background: var(--vurgu); clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 75%, 0 100%); }
.kto-yan-ic p { margin: 0; font-size: 13.5px; color: var(--murekkep-2); line-height: 1.5; }
@media (min-width: 1100px) { .kto-govde.yan-acik .kto-sayfalar { padding-right: 350px; } }
/* bildirim */
.kto-tost {
  position: fixed; left: 50%; bottom: 22px; z-index: 30; transform: translate(-50%, 14px); opacity: 0; pointer-events: none; max-width: calc(100% - 32px);
  padding: 10px 16px; border-radius: 999px; background: var(--kb-gece); color: #f3ecdf; font-size: 14px; font-weight: 600; transition: opacity .2s, transform .2s;
}
.kto-tost.acik { opacity: 1; transform: translate(-50%, 0); }
.kto-arac button[data-kto-vurgu][aria-pressed="true"] { background: var(--vurgu); color: #14202c; }
@media (max-width: 620px) {
  .kto-baslik { display: none; }
  .kto-renkler { left: 8px; right: 8px; justify-content: center; }
}
@media print { .kto-yan, .kto-not, .kto-renkler { display: none !important; } }
@media (max-width: 440px) {
  .kto-cubuk { gap: 4px; padding: 6px 6px; }
  .kto-arac { gap: 0; }
  .kto-arac button, .kto-arac .kto-indir { width: 34px; height: 38px; }
  .kto-arac [data-kto-tam] { display: none; }
  .kto-sayfa input { width: 46px; }
}