/* =========================================================
   NEONOVA — tanıtım sitesi + katalog görüntüleyici
   Koyu & premium tema (lacivert · altın · turuncu)
   ========================================================= */

:root{
  /* Zemin katmanları */
  --navy-900:#060f1f;
  --navy-800:#0b1a33;
  --navy-750:#0e2340;
  --navy-700:#12294a;
  --navy-600:#173257;

  /* Vurgular */
  --gold:#c9a24b;
  --gold-2:#e8c877;
  --orange:#e0853d;
  --blue:#4d9be0;

  /* Metin */
  --text:#eaeef6;
  --muted:#9db0cc;
  --faint:#6f829e;

  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.055);

  --grad:linear-gradient(100deg,var(--gold-2),var(--orange));
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow:0 30px 70px -30px rgba(0,0,0,.7);

  --maxw:1180px;
  --font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --display:"Sora","Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}

*{box-sizing:border-box}
[hidden]{display:none !important}
html{scroll-behavior:smooth}
html,body{margin:0}
body{
  font-family:var(--font);
  color:var(--text);
  background:var(--navy-900);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--display);line-height:1.08;margin:0;font-weight:700;letter-spacing:-.02em}
p{margin:0}
::selection{background:rgba(224,133,61,.32);color:#fff}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- Ortak buton ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--display);font-weight:600;font-size:15px;
  padding:13px 22px;border-radius:14px;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),
             background .25s var(--ease),border-color .25s var(--ease),color .2s var(--ease);
}
.btn-ic{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.btn-lg{padding:16px 28px;font-size:16px;border-radius:16px}
.btn-primary{
  color:#1a1205;background:var(--grad);
  box-shadow:0 12px 34px -10px rgba(224,133,61,.6);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 44px -12px rgba(224,133,61,.7)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  color:var(--text);background:rgba(255,255,255,.04);
  border-color:var(--line);backdrop-filter:blur(6px);
}
.btn-ghost:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.22);transform:translateY(-2px)}
.btn-nav{
  color:#1a1205;background:var(--grad);padding:10px 18px;font-size:14px;border-radius:12px;
  box-shadow:0 10px 26px -12px rgba(224,133,61,.7);
}
.btn-nav:hover{transform:translateY(-1px)}

/* ---------- Üst ilerleme çizgisi ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;height:3px;width:0;z-index:120;
  background:var(--grad);box-shadow:0 0 14px rgba(224,133,61,.6);
  transition:width .1s linear;
}

/* =========================================================
   NAVBAR
   ========================================================= */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:110;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px clamp(20px,4vw,44px);
  transition:padding .3s var(--ease),background .3s var(--ease),
             backdrop-filter .3s var(--ease),border-color .3s var(--ease);
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  padding:12px clamp(20px,4vw,44px);
  background:rgba(7,15,31,.72);
  backdrop-filter:blur(16px) saturate(1.3);
  -webkit-backdrop-filter:blur(16px) saturate(1.3);
  border-bottom-color:var(--line);
}
.brand{display:flex;align-items:center;gap:11px}
.brand-mark{width:38px;height:32px;display:flex;align-items:center;justify-content:center}
.brand-mark img{width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 2px 7px rgba(0,0,0,.55))}
.brand-word{
  font-family:var(--display);font-weight:800;font-size:20px;letter-spacing:.16em;
}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  font-family:var(--display);font-weight:500;font-size:15px;color:var(--muted);
  padding:8px 14px;border-radius:10px;transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-links .btn-nav{margin-left:8px}

.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:transform .3s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* =========================================================
   HERO
   ========================================================= */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:center;
  padding:120px 0 80px;overflow:hidden;
  background:
    radial-gradient(120% 90% at 80% -10%, #12294a 0%, transparent 55%),
    radial-gradient(100% 80% at 0% 100%, #0e2340 0%, transparent 60%),
    var(--navy-900);
}
.hero-grid{
  position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:
    linear-gradient(var(--line-2) 1px,transparent 1px),
    linear-gradient(90deg,var(--line-2) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(120% 90% at 50% 20%,#000 0%,transparent 75%);
  -webkit-mask-image:radial-gradient(120% 90% at 50% 20%,#000 0%,transparent 75%);
}
.hero-aura{position:absolute;inset:0;z-index:0;pointer-events:none;filter:blur(60px)}
.hero-aura .blob{position:absolute;border-radius:50%;opacity:.55;will-change:transform}
.blob-a{width:520px;height:520px;top:-120px;right:-60px;
  background:radial-gradient(circle,rgba(201,162,75,.55),transparent 65%);animation:float1 16s ease-in-out infinite}
.blob-b{width:460px;height:460px;bottom:-160px;left:-80px;
  background:radial-gradient(circle,rgba(224,133,61,.42),transparent 65%);animation:float2 20s ease-in-out infinite}
.blob-c{width:400px;height:400px;top:30%;left:38%;
  background:radial-gradient(circle,rgba(77,155,224,.34),transparent 65%);animation:float1 24s ease-in-out infinite reverse}
@keyframes float1{50%{transform:translate(30px,-40px) scale(1.08)}}
@keyframes float2{50%{transform:translate(-40px,30px) scale(1.12)}}

.hero-cursor{
  position:absolute;z-index:0;width:520px;height:520px;pointer-events:none;
  left:0;top:0;margin:-260px 0 0 -260px;opacity:0;transition:opacity .5s var(--ease);
  background:radial-gradient(circle,rgba(232,200,119,.16),transparent 60%);
}

.hero-inner{
  position:relative;z-index:2;width:100%;max-width:var(--maxw);margin:0 auto;
  padding:0 24px;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--display);font-size:13.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--gold-2);padding:7px 14px;border:1px solid var(--line);border-radius:100px;
  background:rgba(255,255,255,.03);
}
.eyebrow-dot{width:7px;height:7px;border-radius:50%;background:var(--orange);box-shadow:0 0 10px var(--orange);animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{50%{opacity:.35;transform:scale(.7)}}

.hero-title{font-size:clamp(34px,5.4vw,62px);margin:22px 0 0;font-weight:800}
.hero-title .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{margin-top:22px;color:var(--muted);font-size:clamp(16px,1.7vw,18.5px);max-width:540px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}

.hero-stats{display:flex;gap:38px;margin-top:44px;flex-wrap:wrap}
.stat{display:flex;flex-direction:column;gap:2px}
.stat-num{font-family:var(--display);font-weight:800;font-size:34px;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-label{font-size:13px;color:var(--faint);letter-spacing:.03em}

/* Hero görsel — serbest yüzen logo */
.hero-visual{position:relative;display:flex;justify-content:center;align-items:center}
.hero-logo{
  position:relative;width:100%;max-width:500px;
  animation:bob 7s ease-in-out infinite;
  transform-style:preserve-3d;transition:transform .3s var(--ease);
}
@keyframes bob{50%{transform:translateY(-14px)}}
.hero-logo::before{
  content:"";position:absolute;inset:-14% -8%;z-index:-1;border-radius:50%;
  background:radial-gradient(closest-side,rgba(201,162,75,.30),rgba(77,155,224,.16),transparent 72%);
  filter:blur(34px);animation:auraPulse 6s ease-in-out infinite;
}
@keyframes auraPulse{50%{opacity:.6;transform:scale(1.06)}}
.hero-logo img{
  width:100%;display:block;
  filter:drop-shadow(0 26px 50px rgba(0,0,0,.6)) drop-shadow(0 0 40px rgba(77,155,224,.22));
}
.visual-ping{position:absolute;border-radius:50%;border:1px solid var(--gold);opacity:.5}
.visual-ping-1{width:20px;height:20px;top:2%;right:2%;animation:ping 3.2s ease-out infinite}
.visual-ping-2{width:14px;height:14px;bottom:8%;left:-2%;animation:ping 3.2s ease-out infinite .8s;border-color:var(--orange)}
@keyframes ping{0%{transform:scale(.6);opacity:.7}100%{transform:scale(2.4);opacity:0}}

.scroll-hint{
  position:absolute;left:50%;bottom:26px;transform:translateX(-50%);z-index:3;
  width:26px;height:42px;border:2px solid rgba(255,255,255,.28);border-radius:20px;
  display:flex;justify-content:center;padding-top:8px;
}
.scroll-hint span{width:4px;height:8px;border-radius:3px;background:var(--gold-2);animation:scrolldot 1.8s ease-in-out infinite}
@keyframes scrolldot{0%{opacity:0;transform:translateY(-4px)}30%{opacity:1}70%{opacity:1}100%{opacity:0;transform:translateY(12px)}}

/* =========================================================
   ORTAK BÖLÜM ÖĞELERİ
   ========================================================= */
.section{position:relative;padding:clamp(70px,10vw,120px) 0}
.kicker{
  font-family:var(--display);font-size:13px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--gold-2);display:inline-flex;align-items:center;gap:10px;
}
.kicker::before{content:"";width:26px;height:2px;background:var(--grad);border-radius:2px}
.section-title{font-size:clamp(26px,3.6vw,42px);margin-top:16px;max-width:16ch}
.section-head{max-width:640px;margin-bottom:56px}
.section-sub{color:var(--muted);margin-top:16px;font-size:17px}

/* Reveal animasyonu */
.reveal{opacity:0;transform:translateY(26px);
  transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}
.reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}

/* =========================================================
   HAKKIMIZDA
   ========================================================= */
.about{background:linear-gradient(180deg,var(--navy-900),var(--navy-800))}
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.about-copy .section-title{margin-bottom:24px}
.about-copy p{color:var(--muted);margin-top:16px;font-size:17px}
.about-copy strong{color:var(--text);font-weight:600}
.about-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.about-tags span{
  font-size:13.5px;color:var(--text);padding:8px 15px;border-radius:100px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.about-values{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:16px}
.value-card{
  display:flex;gap:18px;align-items:flex-start;padding:22px 24px;
  border:1px solid var(--line);border-radius:18px;
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.015));
  transition:border-color .3s var(--ease),transform .3s var(--ease),background .3s var(--ease);
}
.value-card:hover{border-color:rgba(201,162,75,.5);transform:translateX(6px);
  background:linear-gradient(180deg,rgba(201,162,75,.08),rgba(255,255,255,.015))}
.value-ic{flex:0 0 46px;width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:rgba(201,162,75,.12);border:1px solid rgba(201,162,75,.3)}
.value-ic svg{width:24px;height:24px;fill:none;stroke:var(--gold-2);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.value-card h3{font-size:17px;font-weight:600}
.value-card p{color:var(--muted);font-size:14.5px;margin-top:5px}

/* =========================================================
   HİZMETLER
   ========================================================= */
.services{background:var(--navy-800)}
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.svc-card{
  position:relative;padding:32px 30px;border-radius:22px;overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.012));
  transition:transform .25s var(--ease),border-color .3s var(--ease),box-shadow .35s var(--ease);
  transform-style:preserve-3d;will-change:transform;
}
.svc-card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;opacity:0;
  transition:opacity .35s var(--ease);
  background:radial-gradient(120% 80% at 15% 0%,rgba(201,162,75,.16),transparent 55%);
}
.svc-card[data-accent="orange"]::before{background:radial-gradient(120% 80% at 15% 0%,rgba(224,133,61,.18),transparent 55%)}
.svc-card[data-accent="blue"]::before{background:radial-gradient(120% 80% at 15% 0%,rgba(77,155,224,.18),transparent 55%)}
.svc-card:hover{border-color:rgba(255,255,255,.2);box-shadow:0 30px 60px -30px rgba(0,0,0,.8)}
.svc-card:hover::before{opacity:1}
.svc-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.svc-ic{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;
  background:rgba(201,162,75,.12);border:1px solid rgba(201,162,75,.32)}
.svc-ic svg{width:29px;height:29px;fill:none;stroke:var(--gold-2);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.svc-card[data-accent="orange"] .svc-ic{background:rgba(224,133,61,.12);border-color:rgba(224,133,61,.35)}
.svc-card[data-accent="orange"] .svc-ic svg{stroke:var(--orange)}
.svc-card[data-accent="blue"] .svc-ic{background:rgba(77,155,224,.12);border-color:rgba(77,155,224,.35)}
.svc-card[data-accent="blue"] .svc-ic svg{stroke:var(--blue)}
.svc-index{font-family:var(--display);font-weight:800;font-size:30px;color:rgba(255,255,255,.08)}
.svc-title{font-size:22px;margin-bottom:10px}
.svc-tag{color:var(--muted);font-size:14.5px;margin-bottom:20px;font-style:italic}
.svc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.svc-list li{position:relative;padding-left:20px;font-size:14.5px;color:var(--muted);line-height:1.55}
.svc-list li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;
  background:var(--grad);transform:rotate(45deg)}
.svc-list b{color:var(--text);font-weight:600}

/* =========================================================
   KATALOG CTA
   ========================================================= */
.catalog-cta{background:linear-gradient(180deg,var(--navy-800),var(--navy-900))}
.catalog-band{
  position:relative;display:grid;grid-template-columns:1fr .85fr;gap:40px;align-items:center;
  padding:clamp(34px,5vw,58px);border-radius:28px;overflow:hidden;
  border:1px solid var(--line);
  background:
    radial-gradient(120% 140% at 100% 0%,rgba(201,162,75,.12),transparent 55%),
    linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
}
.catalog-band-glow{position:absolute;width:420px;height:420px;right:-100px;top:-160px;border-radius:50%;
  background:radial-gradient(circle,rgba(224,133,61,.28),transparent 65%);filter:blur(30px);pointer-events:none}
.catalog-band-text{position:relative;z-index:2}
.catalog-band-text .section-title{margin:14px 0 16px;max-width:20ch}
.catalog-band-text p{color:var(--muted);margin-bottom:26px;max-width:44ch}

.catalog-preview{
  position:relative;z-index:2;height:270px;border:0;background:none;cursor:pointer;padding:0;
  display:flex;justify-content:center;align-items:center;perspective:1000px;
}
.catalog-preview .cp{
  position:absolute;width:200px;border-radius:8px;border:1px solid rgba(255,255,255,.14);
  box-shadow:0 24px 50px -18px rgba(0,0,0,.8);
  transition:transform .5s var(--ease),box-shadow .4s var(--ease);
}
.cp-1{transform:rotate(-9deg) translateX(-58px) translateY(8px) scale(.92);z-index:1}
.cp-2{transform:rotate(0deg);z-index:3}
.cp-3{transform:rotate(9deg) translateX(58px) translateY(8px) scale(.92);z-index:1}
.catalog-preview:hover .cp-1{transform:rotate(-13deg) translateX(-84px) translateY(0) scale(.95)}
.catalog-preview:hover .cp-3{transform:rotate(13deg) translateX(84px) translateY(0) scale(.95)}
.catalog-preview:hover .cp-2{transform:translateY(-8px) scale(1.03)}
.cp-play{
  position:absolute;z-index:5;width:66px;height:66px;border-radius:50%;display:grid;place-items:center;
  background:var(--grad);box-shadow:0 14px 34px -8px rgba(224,133,61,.7);
  transition:transform .3s var(--ease);
}
.catalog-preview:hover .cp-play{transform:scale(1.1)}
.cp-play svg{width:26px;height:26px;fill:#1a1205;stroke:none;margin-left:3px}

/* =========================================================
   İLETİŞİM / FOOTER
   ========================================================= */
.contact{background:var(--navy-900);padding-bottom:0}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding-bottom:clamp(60px,8vw,90px)}
.contact-lead .section-title{margin:14px 0 18px}
.contact-lead p{color:var(--muted);font-size:17px;max-width:38ch}
.contact-actions{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}
.contact-cards{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.contact-card{
  display:flex;gap:15px;align-items:flex-start;padding:20px;border-radius:16px;
  border:1px solid var(--line);background:rgba(255,255,255,.025);
  transition:border-color .3s var(--ease),transform .3s var(--ease),background .3s var(--ease);
}
.contact-card:hover{border-color:rgba(201,162,75,.45);transform:translateY(-4px);background:rgba(201,162,75,.06)}
.c-ic{flex:0 0 42px;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line)}
.c-ic svg{width:22px;height:22px;fill:none;stroke:var(--gold-2);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.c-label{display:block;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin-bottom:4px}
.contact-card a{font-size:15px;color:var(--text);line-height:1.45;transition:color .2s var(--ease);word-break:break-word}
.contact-card a:hover{color:var(--gold-2)}

.foot-bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:26px;padding-bottom:26px;border-top:1px solid var(--line);
}
.foot-brand{font-family:var(--display);font-weight:800;letter-spacing:.18em;font-size:16px}
.foot-copy{color:var(--faint);font-size:13.5px}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width:960px){
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-visual{order:-1;max-width:400px;margin:0 auto}
  .about-grid,.services .svc-grid,.catalog-band,.contact-grid,.contact-cards{grid-template-columns:1fr}
  .about-grid{gap:40px}
  .catalog-preview{height:230px;margin-top:8px}
}
@media (max-width:720px){
  .nav-links{
    position:fixed;inset:64px 0 auto 0;flex-direction:column;align-items:stretch;gap:4px;
    padding:16px 22px 24px;background:rgba(7,15,31,.96);backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
    transform:translateY(-14px);opacity:0;pointer-events:none;transition:opacity .25s var(--ease),transform .25s var(--ease);
  }
  .nav-links.open{transform:none;opacity:1;pointer-events:auto}
  .nav-links a{padding:12px 10px;font-size:16px}
  .nav-links .btn-nav{margin:8px 0 0;text-align:center;justify-content:center;padding:13px}
  .nav-toggle{display:flex}
  .hero-stats{gap:26px}
  .stat-num{font-size:28px}
  .contact-actions .btn{flex:1}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001s !important;animation-iteration-count:1 !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* =========================================================
   =========  KATALOG GÖRÜNTÜLEYİCİ (overlay)  =============
   ========================================================= */
.viewer{
  position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;
  background:
    radial-gradient(120% 120% at 50% 0%, #0e2340 0%, #0b1a33 55%, #060f1f 100%);
  -webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;
  animation:viewerIn .5s var(--ease);
}
@keyframes viewerIn{from{opacity:0;transform:scale(.98)}to{opacity:1;transform:none}}
.viewer.closing{animation:viewerOut .35s var(--ease) forwards}
@keyframes viewerOut{to{opacity:0;transform:scale(.98)}}

.stage{width:100%;height:100%;display:flex;align-items:center;justify-content:center;padding:6vh 3vw 9vh}
.flipbook{margin:0 auto;touch-action:pan-y;will-change:transform}
.flipbook .page{background:#fff;border-radius:2px;overflow:hidden}
.flipbook .page img{width:100%;height:100%;display:block;object-fit:cover;pointer-events:none;
  image-rendering:auto;backface-visibility:hidden}
.stf__parent{
  filter:drop-shadow(0 6px 18px rgba(0,0,0,.35)) drop-shadow(0 30px 70px rgba(0,0,0,.5));
  transition:filter .4s var(--ease);
}

/* Araç çubuğu */
.toolbar{
  position:absolute;top:18px;right:20px;z-index:40;display:flex;align-items:center;gap:4px;
  background:rgba(12,24,44,.66);border:1px solid var(--line);border-radius:16px;padding:6px;
  box-shadow:0 12px 40px rgba(0,0,0,.5);
  backdrop-filter:blur(14px) saturate(1.3);-webkit-backdrop-filter:blur(14px) saturate(1.3);
}
.tb-sep{width:1px;height:24px;background:var(--line);margin:0 2px}
.tb-btn{
  width:42px;height:42px;border:0;background:transparent;border-radius:12px;color:var(--text);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background .2s var(--ease),transform .2s var(--ease),color .2s var(--ease);
}
.tb-btn:hover{background:rgba(255,255,255,.09);transform:translateY(-1px)}
.tb-btn:active{transform:translateY(0) scale(.94)}
.tb-btn.active{background:rgba(224,133,61,.22);color:var(--gold-2)}
.tb-btn svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tb-btn#btn-toc svg rect{fill:currentColor;stroke:none}
.tb-back{color:var(--gold-2)}
.tb-back:hover{background:rgba(201,162,75,.16)}

.ic-fs-close,.ic-snd-off{display:none}
.viewer.is-fs .ic-fs-open{display:none}
.viewer.is-fs .ic-fs-close{display:block}
.viewer.muted .ic-snd-on{display:none}
.viewer.muted .ic-snd-off{display:block}

/* Çevirme okları */
.nav-arrow{
  position:absolute;top:50%;transform:translateY(-50%) scale(.9);z-index:35;
  width:52px;height:52px;border:0;border-radius:50%;
  background:rgba(12,24,44,.55);color:var(--text);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;
  box-shadow:0 6px 22px rgba(0,0,0,.4);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.viewer:hover .nav-arrow{opacity:1;transform:translateY(-50%) scale(1)}
.nav-arrow:hover{background:rgba(12,24,44,.9);color:var(--gold-2);transform:translateY(-50%) scale(1.08)}
.nav-arrow:active{transform:translateY(-50%) scale(.96)}
.nav-arrow svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.nav-prev{left:22px}.nav-next{right:22px}
.nav-arrow[disabled]{opacity:0 !important;pointer-events:none}

/* Alt ilerleme çubuğu */
.progress{position:absolute;left:0;right:0;bottom:22px;z-index:30;
  display:flex;flex-direction:column;align-items:center;gap:10px;padding:0 6vw}
.page-counter{
  font-size:12.5px;font-weight:600;letter-spacing:.04em;color:var(--muted);
  background:rgba(12,24,44,.6);padding:4px 12px;border-radius:20px;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid var(--line);
}
.progress-track{position:relative;width:100%;max-width:680px;height:5px;
  background:rgba(255,255,255,.12);border-radius:6px;cursor:pointer;transition:height .2s var(--ease)}
.progress-track:hover{height:7px}
.progress-fill{position:absolute;left:0;top:0;height:100%;width:0;
  background:var(--grad);border-radius:6px;transition:width .45s var(--ease)}
.progress-thumb{position:absolute;top:50%;left:0;width:15px;height:15px;border-radius:50%;
  background:#fff;border:2px solid var(--orange);transform:translate(-50%,-50%);
  box-shadow:0 2px 8px rgba(0,0,0,.4);transition:left .45s var(--ease),transform .2s var(--ease)}
.progress-track:hover .progress-thumb{transform:translate(-50%,-50%) scale(1.2)}

/* İçindekiler paneli */
.toc-panel{
  position:absolute;top:0;right:0;z-index:50;width:360px;max-width:88vw;height:100%;
  background:rgba(11,26,51,.97);box-shadow:-12px 0 50px rgba(0,0,0,.5);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  display:flex;flex-direction:column;animation:slideIn .35s var(--ease);border-left:1px solid var(--line);
}
@keyframes slideIn{from{transform:translateX(100%)}to{transform:translateX(0)}}
.toc-head{display:flex;align-items:center;justify-content:space-between;padding:20px 22px;
  font-family:var(--display);font-size:16px;font-weight:700;border-bottom:1px solid var(--line)}
.toc-close{border:0;background:transparent;cursor:pointer;color:var(--muted);
  width:32px;height:32px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  transition:background .2s var(--ease),color .2s var(--ease)}
.toc-close:hover{background:rgba(255,255,255,.08);color:var(--text)}
.toc-close svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
.toc-list{list-style:none;margin:0;padding:8px;overflow-y:auto;flex:1}
.toc-list li{position:relative;padding:14px 16px;margin:2px 0;font-size:14.5px;line-height:1.4;
  cursor:pointer;color:var(--muted);border-radius:12px;
  transition:background .18s var(--ease),padding-left .18s var(--ease),color .18s var(--ease)}
.toc-list li::before{content:"";position:absolute;left:6px;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:60%;background:var(--grad);border-radius:3px;transition:transform .2s var(--ease)}
.toc-list li:hover{background:rgba(255,255,255,.05);color:var(--text)}
.toc-list li.active{background:rgba(224,133,61,.14);color:var(--text);font-weight:600;padding-left:22px}
.toc-list li.active::before{transform:translateY(-50%) scaleY(1)}

/* Yakınlaştırma */
.zoom-overlay{position:absolute;inset:0;z-index:60;background:rgba(4,8,16,.95);
  display:flex;align-items:center;justify-content:center;overflow:auto;cursor:zoom-out;animation:fade .3s var(--ease)}
@keyframes fade{from{opacity:0}to{opacity:1}}
.zoom-overlay img{max-width:none;width:150%;height:auto;cursor:zoom-out;box-shadow:0 20px 60px rgba(0,0,0,.6)}

@media (max-width:760px){
  .toolbar{top:12px;right:12px;padding:4px;gap:2px;border-radius:14px}
  .tb-btn{width:38px;height:38px}
  .nav-arrow{width:42px;height:42px}
  .nav-prev{left:10px}.nav-next{right:10px}
  .stage{padding:4vh 2vw 9vh}
  .progress{bottom:14px}
}