/* =========================================================
   Trakya Çelik Kapı — E-Katalog (header butonu, footer CTA, flipbook)
   ========================================================= */
:root{
  --tk-gold:#DAA520;
  --tk-gold-2:#f3cf6b;
  --tk-gold-3:#a8770f;
  --tk-ink:#16181c;
  --tk-ink-2:#22262c;
  --tk-line:rgba(218,165,32,.35);
}

/* ---------- Header: E-Katalog butonu ---------- */
.header-nav .nav>li.tk-nav-katalog{display:flex;align-items:center;margin-left:14px}
.header-nav .nav>li.tk-nav-katalog>a.tk-katalog-btn{
  position:relative;overflow:hidden;display:inline-flex;align-items:center;gap:10px;
  padding:11px 20px 11px 14px!important;border-radius:40px;
  background:linear-gradient(135deg,#2a2e35 0%,#14161a 100%);
  color:#fff!important;font-size:13px;font-weight:700;letter-spacing:.06em;line-height:1;
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 6px 16px -6px rgba(0,0,0,.55),inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform .25s ease,box-shadow .25s ease;
}
.tk-katalog-btn .tk-ico{
  width:28px;height:28px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--tk-gold-2),var(--tk-gold) 55%,var(--tk-gold-3));
  color:#16181c;font-size:15px;flex:0 0 auto;
  box-shadow:0 0 0 3px rgba(218,165,32,.18);
}
.tk-katalog-btn .tk-lbl{display:flex;flex-direction:column;gap:3px;text-align:left}
.tk-katalog-btn .tk-lbl small{font-size:9.5px;font-weight:600;letter-spacing:.14em;color:var(--tk-gold-2);opacity:.95}
.tk-katalog-btn::after{ /* parlama efekti */
  content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.28),transparent);
  transform:skewX(-20deg);animation:tkShine 4.5s ease-in-out infinite;
}
.header-nav .nav>li.tk-nav-katalog>a.tk-katalog-btn:hover{transform:translateY(-2px);box-shadow:0 12px 22px -8px rgba(0,0,0,.6),inset 0 1px 0 rgba(255,255,255,.1);color:#fff!important}
@keyframes tkShine{0%,70%{left:-60%}100%{left:130%}}
@media (min-width:992px) and (max-width:1199px){
  .header-nav .nav>li.tk-nav-katalog{margin-left:4px}
  .tk-katalog-btn .tk-lbl{display:none}
  .header-nav .nav>li.tk-nav-katalog>a.tk-katalog-btn{padding:5px!important;gap:0}
  .header-nav .nav>li>a{padding-left:8px;padding-right:8px}
}
@media (max-width:991px){
  .header-nav .nav>li.tk-nav-katalog{display:block;width:auto;margin:12px 15px 18px;border:0}
  .header-nav .nav>li.tk-nav-katalog>a.tk-katalog-btn{display:flex;justify-content:flex-start;border-top:0!important;border-radius:10px;padding:12px 14px!important}
}

/* Üst bar küçük indirme linki */
.tk-top-katalog{display:inline-flex!important;align-items:center;gap:6px;color:var(--tk-gold-2)!important;font-weight:600;font-size:12px;letter-spacing:.03em;width:auto!important;height:auto!important;background:none!important;border:0!important;padding:0 4px!important;margin-right:10px}
.tk-top-katalog i{font-size:13px}
.tk-top-katalog:hover{color:#fff!important}
@media (max-width:767px){.tk-top-katalog{display:none!important}}

/* ---------- Footer üstü katalog CTA bandı ---------- */
.tk-cta{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(1200px 400px at 85% 0%,rgba(218,165,32,.18),transparent 60%),
    radial-gradient(700px 360px at 0% 100%,rgba(218,165,32,.10),transparent 60%),
    linear-gradient(180deg,#1b1e23 0%,#111316 100%);
  padding:70px 0;
}
.tk-cta::before{ /* ince altın çizgiler */
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background:repeating-linear-gradient(115deg,transparent 0 46px,rgba(218,165,32,.05) 46px 47px);
}
.tk-cta::after{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,transparent,var(--tk-gold),transparent)}
.tk-cta .container{position:relative;z-index:1}
.tk-cta-grid{display:grid;grid-template-columns:300px 1fr;gap:60px;align-items:center}
.tk-cta-book{display:block;position:relative;width:240px;margin:0 auto;perspective:1200px}
.tk-cta-book .tk-book3d{
  position:relative;display:block;transform:rotateY(-24deg) rotateX(4deg);transform-style:preserve-3d;
  transition:transform .6s cubic-bezier(.2,.8,.2,1);
}
.tk-cta-book:hover .tk-book3d{transform:rotateY(-8deg) rotateX(2deg) translateY(-6px)}
.tk-cta-book img{display:block;width:100%;height:auto;border-radius:2px 6px 6px 2px;
  box-shadow:30px 34px 50px -18px rgba(0,0,0,.85),0 0 0 1px rgba(218,165,32,.25)}
.tk-cta-book .tk-book3d::before{ /* sayfa kalınlığı */
  content:"";position:absolute;top:3px;bottom:3px;right:-12px;width:12px;
  background:repeating-linear-gradient(90deg,#f4f1ea 0 1px,#d9d4c8 1px 2px);
  transform:rotateY(90deg);transform-origin:left;border-radius:0 2px 2px 0;
}
.tk-cta-book .tk-book3d::after{ /* sırt gölgesi */
  content:"";position:absolute;left:0;top:0;bottom:0;width:14px;
  background:linear-gradient(90deg,rgba(0,0,0,.45),rgba(255,255,255,.12) 40%,transparent);border-radius:2px 0 0 2px
}
.tk-cta-book .tk-badge{
  position:absolute;right:-26px;top:18px;z-index:2;width:74px;height:74px;border-radius:50%;
  background:linear-gradient(135deg,var(--tk-gold-2),var(--tk-gold) 55%,var(--tk-gold-3));
  color:#16181c;display:flex;flex-direction:column;align-items:center;justify-content:center;
  font-weight:800;font-size:22px;line-height:1;box-shadow:0 10px 20px -6px rgba(0,0,0,.6);
  transform:rotate(10deg)
}
.tk-cta-book .tk-badge small{font-size:9px;letter-spacing:.12em;font-weight:700;margin-top:3px}
.tk-cta-eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--tk-gold-2);font-size:12px;font-weight:700;letter-spacing:.28em;text-transform:uppercase;margin-bottom:14px}
.tk-cta-eyebrow::before{content:"";width:34px;height:2px;background:var(--tk-gold)}
.tk-cta h2,.tk-viewer-head h1{font-family:'Montserrat',Arial,sans-serif}
.tk-cta h2{color:#fff;font-size:40px;line-height:1.15;font-weight:800;margin:0 0 14px;letter-spacing:-.01em}
.tk-cta h2 span{background:linear-gradient(90deg,var(--tk-gold-2),var(--tk-gold));-webkit-background-clip:text;background-clip:text;color:transparent}
.tk-cta p.tk-cta-text{color:rgba(255,255,255,.72);font-size:16px;line-height:1.7;margin:0 0 22px;max-width:620px}
.tk-cta-tags{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 30px;padding:0;list-style:none}
.tk-cta-tags li{font-size:12px;color:rgba(255,255,255,.8);border:1px solid rgba(255,255,255,.14);border-radius:30px;padding:5px 12px;background:rgba(255,255,255,.03)}
.tk-cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.tk-btn{display:inline-flex;align-items:center;gap:12px;padding:15px 26px;border-radius:50px;font-weight:700;font-size:15px;letter-spacing:.02em;transition:all .25s ease;text-decoration:none!important;line-height:1}
.tk-btn i{font-size:17px}
.tk-btn-gold{color:#16181c!important;background:linear-gradient(135deg,var(--tk-gold-2),var(--tk-gold) 55%,var(--tk-gold-3));box-shadow:0 12px 26px -10px rgba(218,165,32,.75)}
.tk-btn-gold:hover{transform:translateY(-2px);box-shadow:0 18px 32px -10px rgba(218,165,32,.9)}
.tk-btn-ghost{color:#fff!important;border:1.5px solid rgba(218,165,32,.6);background:rgba(218,165,32,.06)}
.tk-btn-ghost:hover{background:rgba(218,165,32,.16);border-color:var(--tk-gold)}
.tk-btn-ghost small{font-weight:500;opacity:.65;font-size:12px}
@media (max-width:991px){
  .tk-cta{padding:56px 0}
  .tk-cta-grid{grid-template-columns:1fr;gap:36px;text-align:center}
  .tk-cta-book{width:190px}
  .tk-cta p.tk-cta-text{margin-left:auto;margin-right:auto}
  .tk-cta-tags,.tk-cta-actions{justify-content:center}
  .tk-cta h2{font-size:30px}
}
@media (max-width:480px){
  .tk-btn{width:100%;justify-content:center}
}

/* ---------- Katalog görüntüleme sayfası ---------- */
.tk-viewer{
  position:relative;color:#fff;padding:26px 0 40px;
  background:
    radial-gradient(900px 500px at 50% 35%,rgba(218,165,32,.12),transparent 65%),
    linear-gradient(180deg,#1a1d22,#0e1013);
}
.tk-viewer:fullscreen{padding:16px 0;overflow:auto}
.tk-viewer-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:18px}
.tk-viewer-head h1{color:#fff;font-size:30px;font-weight:800;margin:4px 0 0}
.tk-viewer-head h1 span{color:var(--tk-gold)}
.tk-viewer-head p{color:rgba(255,255,255,.6);margin:6px 0 0;font-size:14px}
.tk-toolbar{display:flex;align-items:center;gap:6px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:50px;padding:5px}
.tk-tb{width:40px;height:40px;border-radius:50%;border:0;background:transparent;color:#fff;font-size:15px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:background .2s,color .2s}
.tk-tb:hover{background:rgba(218,165,32,.18);color:var(--tk-gold-2)}
.tk-tb:focus-visible{outline:2px solid var(--tk-gold);outline-offset:2px}
.tk-tb-sep{width:1px;height:22px;background:rgba(255,255,255,.15);margin:0 4px}
.tk-pageno{min-width:92px;text-align:center;font-size:13px;font-weight:600;color:rgba(255,255,255,.85);font-variant-numeric:tabular-nums}
.tk-tb-dl{width:auto;padding:0 16px;border-radius:40px;gap:8px;font-size:13px;font-weight:700;color:#16181c;background:linear-gradient(135deg,var(--tk-gold-2),var(--tk-gold) 55%,var(--tk-gold-3))}
.tk-tb-dl:hover{color:#16181c;background:linear-gradient(135deg,#ffe08a,var(--tk-gold-2))}

.tk-series{position:relative;-webkit-mask-image:linear-gradient(90deg,#000 92%,transparent);mask-image:linear-gradient(90deg,#000 92%,transparent);display:flex;gap:8px;overflow-x:auto;padding:2px 2px 12px;margin-bottom:14px;scrollbar-width:thin}
.tk-series button{flex:0 0 auto;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.03);color:rgba(255,255,255,.8);border-radius:30px;padding:7px 14px;font-size:12.5px;cursor:pointer;transition:all .2s;white-space:nowrap}
.tk-series button b{color:var(--tk-gold);margin-right:6px;font-weight:800}
.tk-series button:hover,.tk-series button.is-active{border-color:var(--tk-gold);background:rgba(218,165,32,.14);color:#fff}

.tk-stage{position:relative;display:flex;align-items:center;justify-content:center;min-height:420px}
.tk-book-wrap{width:100%;max-width:1240px;margin:0 auto}
#tkBook{margin:0 auto}
#tkBook .tk-page{background:#111;overflow:hidden}
#tkBook .tk-page img{width:100%;height:100%;object-fit:cover;display:block;user-select:none;-webkit-user-drag:none}
#tkBook .tk-page.tk-blank{background:linear-gradient(135deg,#1b1e23,#0f1114)}
.tk-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:5;width:52px;height:52px;border-radius:50%;border:1px solid rgba(218,165,32,.5);background:rgba(18,20,24,.75);color:var(--tk-gold-2);font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;backdrop-filter:blur(4px)}
.tk-arrow:hover{background:var(--tk-gold);color:#16181c}
.tk-arrow.prev{left:0}.tk-arrow.next{right:0}
.tk-arrow[disabled]{opacity:.25;pointer-events:none}
.tk-hint{text-align:center;color:rgba(255,255,255,.45);font-size:12.5px;margin-top:14px}
.tk-loading{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.6);font-size:14px;gap:10px}

.tk-thumbs{position:relative;display:flex;gap:10px;overflow-x:auto;padding:16px 4px 8px;margin-top:20px;border-top:1px solid rgba(255,255,255,.08);scrollbar-width:thin}
.tk-thumbs button{flex:0 0 auto;width:70px;border:0;padding:0;background:none;cursor:pointer;text-align:center;color:rgba(255,255,255,.5);font-size:11px}
.tk-thumbs img{width:70px;height:85px;object-fit:cover;display:block;border-radius:3px;border:2px solid transparent;opacity:.6;transition:all .2s;margin-bottom:4px}
.tk-thumbs button:hover img{opacity:1}
.tk-thumbs button.is-active img{border-color:var(--tk-gold);opacity:1}
.tk-thumbs button.is-active{color:var(--tk-gold-2)}

/* Yakınlaştırma */
.tk-zoom{position:fixed;inset:0;z-index:100000;background:rgba(8,9,11,.96);display:none;flex-direction:column}
.tk-zoom.open{display:flex}
.tk-zoom-bar{display:flex;align-items:center;justify-content:space-between;padding:12px 18px;color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
.tk-zoom-bar span{font-size:14px;color:rgba(255,255,255,.75)}
.tk-zoom-body{flex:1;overflow:auto;display:flex;justify-content:center;align-items:flex-start;gap:6px;padding:20px;cursor:zoom-out}
.tk-zoom-body img{width:min(1229px,48vw);height:auto;box-shadow:0 20px 40px rgba(0,0,0,.6)}
.tk-zoom-body.single img{width:min(1229px,96vw)}

@media (max-width:767px){
  .tk-viewer{padding:22px 0 26px}
  .tk-viewer-head{align-items:stretch}
  .tk-viewer-head h1{font-size:24px}
  .tk-toolbar{width:100%;justify-content:space-between}
  .tk-tb-dl span{display:none}
  .tk-tb-dl{width:40px;padding:0}
  .tk-arrow{width:40px;height:40px;font-size:16px}
  .tk-zoom-body img{width:96vw}
}