:root{--bg:#121417;--bar:#1b1e23;--line:#2b3038;--tx:#e9ebee;--mut:#9aa1ab;--acc:#F47B20}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;background:var(--bg);color:var(--tx);font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
body{display:flex;flex-direction:column;overflow:hidden}
a{color:inherit;text-decoration:none}
.top{display:flex;align-items:center;gap:16px;padding:10px 20px;background:var(--bar);border-bottom:1px solid var(--line);flex:none}
.top .logo img{height:34px;display:block}
.top h1{font-size:16px;font-weight:600;letter-spacing:.2px;flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top h1 small{color:var(--mut);font-weight:400;margin-left:8px}
.btn{display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 14px;border:1px solid var(--line);border-radius:8px;background:transparent;color:var(--tx);font:inherit;font-size:14px;cursor:pointer;white-space:nowrap}
.btn:hover{border-color:var(--acc);color:#fff}
.btn.acc{background:var(--acc);border-color:var(--acc);color:#fff;font-weight:600}
.btn.acc:hover{filter:brightness(1.08)}
a.btn{text-decoration:none}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.stage{flex:1;position:relative;display:flex;align-items:center;justify-content:center;padding:24px 72px;min-height:0}
#book{width:100%;height:100%;min-width:0!important}
.page{background:#fff}
.page img{width:100%;height:100%;object-fit:contain;display:block;background:#fff;user-select:none;-webkit-user-drag:none}
.nav{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;border:1px solid var(--line);background:rgba(27,30,35,.85);color:var(--tx);cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:5}
.nav:hover{border-color:var(--acc);color:var(--acc)}
.nav svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.nav.prev{left:14px}.nav.next{right:14px}
.bottom{display:flex;align-items:center;justify-content:center;gap:12px;padding:10px 16px;background:var(--bar);border-top:1px solid var(--line);flex:none}
.count{font-variant-numeric:tabular-nums;color:var(--mut);font-size:14px;min-width:84px;text-align:center}
.count b{color:var(--tx)}
input[type=range]{width:min(420px,40vw);accent-color:var(--acc)}
.thumbs{position:fixed;inset:0;background:var(--bg);z-index:20;display:none;flex-direction:column}
.thumbs.on{display:flex}
.thumbs header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;border-bottom:1px solid var(--line)}
.thumbs .grid{flex:1;overflow:auto;padding:20px;display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px;align-content:start;grid-auto-rows:max-content}
.thumbs .grid a{display:block;border:2px solid transparent;border-radius:6px;overflow:hidden;background:#222;position:relative}
.thumbs .grid a:hover,.thumbs .grid a.cur{border-color:var(--acc)}
.thumbs .grid img{width:100%;height:100%;object-fit:cover;display:block}
.thumbs .grid span{position:absolute;left:6px;bottom:6px;background:rgba(0,0,0,.7);font-size:12px;padding:2px 7px;border-radius:4px}
.hint{position:absolute;bottom:8px;left:0;right:0;text-align:center;color:var(--mut);font-size:12px;pointer-events:none}
@media (max-width:760px){
  .top{padding:8px 12px;gap:8px}
  .top .logo img{height:26px}
  .top h1{font-size:14px}.top h1 small{display:none}
  .btn .t{display:none}.btn{padding:0 10px}
  .btn.geri span{font-size:13px}
  .stage{padding:12px 8px 28px}
  .nav{display:none}
  input[type=range]{display:none}
  .thumbs .grid{grid-template-columns:repeat(2,1fr);gap:10px;padding:12px}
}
:fullscreen .top,:fullscreen .bottom{background:var(--bg)}
.page{position:relative}
.thumbs .grid a.tx{aspect-ratio:auto;background:#1b1e23;padding:14px 16px;display:flex;gap:12px;align-items:baseline}
.thumbs .grid a.tx b{color:var(--acc);font-size:18px}
.thumbs .grid a.tx em{font-style:normal;font-size:14px;color:var(--tx)}

/* 3D görüntüleyici */
.m3d{position:fixed;inset:0;z-index:60;background:rgba(8,9,11,.82);display:none;align-items:center;justify-content:center;padding:16px}
.m3d.on{display:flex}
.m3d-in{width:min(1100px,100%);height:min(780px,100%);background:#1c1f24;border-radius:14px;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.6)}
.m3d header{display:flex;align-items:center;gap:14px;padding:12px 14px 12px 20px;border-bottom:1px solid #2a2e35}
.m3d header b{font-size:17px;color:#fff;white-space:nowrap}
.m3d header span{flex:1;font-size:13px;color:#9aa1ab}
.m3d model-viewer{flex:1;width:100%;min-height:0;background:radial-gradient(ellipse at 50% 40%,#3a3f47,#1c1f24 75%);--poster-color:transparent}
.m3d footer{display:flex;align-items:center;gap:12px;padding:12px 18px;border-top:1px solid #2a2e35;font-size:13px;color:#c3c9d1;flex-wrap:wrap}
.m3d footer input{flex:1;min-width:120px;accent-color:#F47B20}
@media (max-width:640px){.m3d{padding:0}.m3d-in{border-radius:0;height:100%}.m3d header span{display:none}.m3d footer span{font-size:12px}.m3d footer input[type=range]{display:block;flex:1 1 100%;order:-1;width:auto}.m3d footer span{flex:1}}