/* =====================================================================
   AKKAYA ELEKTROMEKANİK — paylaşılan tema
   Premium / sinematik: tam siyah + bakır accent
   ===================================================================== */

:root{
  --void:      #000000;
  --panel:     #0b0c0e;
  --panel-2:   #101216;
  --steel:     #d3d8de;
  --steel-dim: #9aa0a7;
  --ash:       #6b7178;
  --copper:    #c8823c;
  --copper-hi: #e6a662;
  --line:      rgba(255,255,255,.09);
  --line-soft: rgba(255,255,255,.05);

  --f-display: "Clash Display", system-ui, sans-serif;
  --f-body:    "Satoshi", system-ui, sans-serif;
  --f-mono:    "JetBrains Mono", ui-monospace, monospace;

  --pad-x: clamp(1.2rem, 5vw, 6rem);
  --maxw: 1280px;
}

*{ margin:0; padding:0; box-sizing:border-box; }

html,body{ background:var(--void); color:var(--steel); }
body{
  font-family:var(--f-body);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  line-height:1.5;
}
a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
::selection{ background:var(--copper); color:#000; }

/* Not: body'ye opacity animasyonu UYGULANMAZ — arka plan sekmesinde donup
   sayfayı görünmez bırakabilir. Giriş animasyonu .reveal sistemiyle yapılır
   (IntersectionObserver + ilk-ekran + 4sn güvence). Body her zaman görünür. */

/* ---------- Sinematik katmanlar ---------- */
.grain,.vignette{ position:fixed; inset:0; pointer-events:none; z-index:80; }
.vignette{ background:radial-gradient(120% 100% at 50% 40%, transparent 42%, rgba(0,0,0,.5) 80%, #000 100%); }
.grain{
  opacity:.045; mix-blend-mode:screen;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation:grain 6s steps(6) infinite;
}
@keyframes grain{ 0%{transform:translate(0,0)} 20%{transform:translate(-4%,3%)} 40%{transform:translate(3%,-5%)} 60%{transform:translate(-2%,4%)} 80%{transform:translate(4%,-2%)} 100%{transform:translate(0,0)} }
@media (prefers-reduced-motion: reduce){ .grain{ animation:none; } }

/* ---------- Navigasyon ---------- */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:70;
  display:flex; align-items:center; justify-content:space-between;
  padding:1.35rem var(--pad-x);
  transition:background .4s ease, border-color .4s ease, padding .4s ease;
  border-bottom:1px solid transparent;
}
.nav.scrolled{ background:rgba(0,0,0,.62); backdrop-filter:blur(12px); border-color:var(--line-soft); padding-top:1rem; padding-bottom:1rem; }
.brand{ display:flex; align-items:center; gap:.7rem; z-index:2; }
.brand .dot{ width:9px; height:9px; border-radius:50%; background:var(--copper); box-shadow:0 0 14px var(--copper); flex:none; }
.brand b{ font-family:var(--f-display); font-weight:600; font-size:1rem; letter-spacing:.02em; line-height:1; }
.brand span{ font-family:var(--f-mono); font-size:.58rem; letter-spacing:.34em; color:var(--ash); text-transform:uppercase; display:block; margin-top:2px; }
.nav-links{ display:flex; gap:2.1rem; }
.nav-links a{ font-size:.82rem; color:var(--steel-dim); letter-spacing:.02em; transition:color .25s; position:relative; }
.nav-links a:hover,.nav-links a[aria-current="page"]{ color:var(--steel); }
.nav-links a::after{ content:""; position:absolute; left:0; right:0; bottom:-6px; height:1px; background:var(--copper);
  transform:scaleX(0); transform-origin:left; transition:transform .32s cubic-bezier(.2,.7,.2,1); }
.nav-links a:hover::after,.nav-links a[aria-current="page"]::after{ transform:scaleX(1); }
.badge{ font-family:var(--f-mono); font-size:.62rem; letter-spacing:.2em; color:var(--copper); border:1px solid rgba(200,130,60,.35); padding:.35rem .7rem; border-radius:999px; text-transform:uppercase; white-space:nowrap; }

/* ---------- WhatsApp ---------- */
/* Kayan buton (JS tüm sayfalara enjekte eder) */
.wa-fab{
  position:fixed; right:1.4rem; bottom:1.4rem; z-index:65;
  width:56px; height:56px; border-radius:50%;
  background:#25D366; color:#06140c; display:grid; place-items:center;
  box-shadow:0 10px 28px rgba(0,0,0,.45), 0 0 0 1px rgba(255,255,255,.06);
  transition:transform .25s ease, box-shadow .25s ease, opacity .25s ease;
}
.wa-fab:hover{ transform:translateY(-3px) scale(1.05); box-shadow:0 14px 34px rgba(0,0,0,.5), 0 0 0 1px rgba(255,255,255,.08); }
.wa-fab svg{ width:28px; height:28px; }
.wa-fab .ring{ position:absolute; inset:-6px; border-radius:50%; border:1px solid rgba(37,211,102,.35); animation:waPulse 2.6s ease-out infinite; }
@keyframes waPulse{ 0%{ transform:scale(.9); opacity:.8; } 100%{ transform:scale(1.35); opacity:0; } }
.wa-fab.hidden{ opacity:0; pointer-events:none; transform:translateY(10px); }
@media (prefers-reduced-motion: reduce){ .wa-fab .ring{ animation:none; } }
@media (max-width:600px){ .wa-fab{ right:1rem; bottom:1rem; width:50px; height:50px; } .wa-fab svg{ width:25px; height:25px; } }

/* Satır içi WhatsApp linki (İletişim bilgi satırı, ürün detay CTA'ları) */
.wa-link{ display:inline-flex; align-items:center; gap:.5rem; color:var(--steel) !important; }
.wa-link .wa-ico{ color:#25D366; flex:none; }
.wa-link:hover{ color:var(--copper) !important; }
.btn--whatsapp{ background:#25D366; color:#06140c; }
.btn--whatsapp:hover{ background:#2be376; }
.btn--whatsapp svg{ width:16px; height:16px; }

/* Dil değiştirici (JS enjekte eder) */
.lang-toggle{ font-family:var(--f-mono); font-size:.72rem; letter-spacing:.06em; color:var(--steel-dim); background:none; border:1px solid var(--line); border-radius:999px; padding:.4rem .72rem; cursor:pointer; transition:border-color .25s, color .25s; }
.lang-toggle:hover{ border-color:var(--copper); color:var(--steel); }
.lang-toggle b{ color:var(--copper); font-weight:500; }
.lang-toggle span{ opacity:.35; margin:0 .18rem; }

/* hamburger */
.burger{ display:none; flex-direction:column; gap:5px; background:none; border:0; cursor:pointer; z-index:2; padding:6px; }
.burger span{ width:24px; height:2px; background:var(--steel); transition:transform .3s, opacity .3s; }
.nav.open .burger span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav.open .burger span:nth-child(2){ opacity:0; }
.nav.open .burger span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* mobil menü paneli */
.mobile-menu{
  position:fixed; inset:0; z-index:60; background:#000;
  display:flex; flex-direction:column; justify-content:center; gap:1.4rem;
  padding:var(--pad-x);
  opacity:0; pointer-events:none; transform:translateY(-8px);
  transition:opacity .35s ease, transform .35s ease;
}
.mobile-menu.show{ opacity:1; pointer-events:auto; transform:none; }
.mobile-menu a{ font-family:var(--f-display); font-weight:500; font-size:2rem; color:var(--steel); }
.mobile-menu a .idx{ font-family:var(--f-mono); font-size:.7rem; color:var(--copper); margin-right:1rem; }

@media (max-width:900px){
  .nav-links,.nav .badge{ display:none; }
  .burger{ display:flex; }
}

/* ---------- Tipografi yardımcıları ---------- */
.eyebrow{ font-family:var(--f-mono); font-size:.68rem; letter-spacing:.38em; color:var(--copper); text-transform:uppercase; }
.mono{ font-family:var(--f-mono); }
.copper{ color:var(--copper); }
em.hl{ font-style:normal; color:var(--copper); }

/* ---------- Layout primitifleri ---------- */
.container{ max-width:var(--maxw); margin:0 auto; padding-inline:var(--pad-x); }
.section{ padding-block:clamp(5rem, 12vh, 10rem); }
.section--tight{ padding-block:clamp(3rem, 7vh, 6rem); }
.divider{ height:1px; background:var(--line-soft); border:0; }

/* Inner-page hero */
.page-hero{ padding-top:clamp(9rem, 22vh, 14rem); padding-bottom:clamp(3rem, 8vh, 6rem); }
.page-hero .eyebrow{ margin-bottom:1.6rem; }
.page-hero h1{ font-family:var(--f-display); font-weight:500; font-size:clamp(2.6rem, 7vw, 5.6rem); line-height:.98; letter-spacing:-.025em; }
.page-hero .lead{ color:var(--ash); font-size:clamp(1rem,1.6vw,1.2rem); max-width:52ch; margin-top:1.8rem; line-height:1.6; }

/* Butonlar */
.btn{ display:inline-flex; align-items:center; gap:.6rem; font-family:var(--f-mono); font-size:.76rem; letter-spacing:.12em; text-transform:uppercase; padding:.9rem 1.5rem; border-radius:999px; transition:transform .25s, background .25s, border-color .25s, color .25s; }
.btn:hover{ transform:translateY(-2px); }
.btn--primary{ background:var(--copper); color:#000; font-weight:500; }
.btn--primary:hover{ background:var(--copper-hi); box-shadow:0 8px 28px rgba(200,130,60,.32); }
.btn--ghost{ border:1px solid var(--line); color:var(--steel); }
.btn--ghost:hover{ border-color:var(--copper); color:var(--copper); }
.btn .arrow{ transition:transform .25s; }
.btn:hover .arrow{ transform:translateX(3px); }

/* ---------- Scroll reveal (JS varsa gizle, yoksa görünür kalır) ---------- */
.reveal{ opacity:1; }
.js .reveal{ opacity:0; transform:translateY(26px); transition:opacity .9s cubic-bezier(.2,.7,.2,1), transform .9s cubic-bezier(.2,.7,.2,1); }
.js .reveal.in{ opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){ .js .reveal{ opacity:1; transform:none; transition:none; } }

/* ---------- Footer ---------- */
.site-footer{ border-top:1px solid var(--line-soft); padding-block:clamp(4rem,9vh,7rem) 2.5rem; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:2.5rem; }
.footer-grid h4{ font-family:var(--f-mono); font-size:.66rem; letter-spacing:.22em; text-transform:uppercase; color:var(--ash); margin-bottom:1.1rem; }
.footer-grid a,.footer-grid p{ color:var(--steel-dim); font-size:.9rem; margin-bottom:.55rem; transition:color .2s; }
.footer-grid a:hover{ color:var(--copper); }
.footer-brand b{ font-family:var(--f-display); font-weight:600; font-size:1.3rem; }
.footer-brand p{ max-width:34ch; margin-top:.9rem; line-height:1.6; }
.footer-bottom{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:1rem; margin-top:3.5rem; padding-top:1.6rem; border-top:1px solid var(--line-soft); font-family:var(--f-mono); font-size:.66rem; letter-spacing:.1em; color:var(--ash); text-transform:uppercase; }
@media (max-width:760px){ .footer-grid{ grid-template-columns:1fr; gap:2rem; } }

/* =====================================================================
   ÜRÜN DETAY SAYFALARI (model-*.html)
   ===================================================================== */
.breadcrumb{ font-family:var(--f-mono); font-size:.68rem; letter-spacing:.14em; text-transform:uppercase; color:var(--ash); }
.breadcrumb a{ color:var(--ash); transition:color .2s; }
.breadcrumb a:hover{ color:var(--copper); }
.breadcrumb .sep{ color:var(--line); margin:0 .55rem; }

.pd-hero{ display:grid; grid-template-columns:1.05fr .95fr; gap:clamp(2rem,5vw,4.5rem); align-items:center; }
@media (max-width:900px){ .pd-hero{ grid-template-columns:1fr; } }

.pd-stage{ position:relative; border:1px solid var(--line-soft); border-radius:20px; overflow:hidden; aspect-ratio:1/1;
           background:radial-gradient(circle at 50% 42%, #16171a, #000 72%); display:grid; place-items:center; cursor:pointer; }
.pd-stage img{ position:absolute; width:82%; filter:drop-shadow(0 24px 50px rgba(0,0,0,.6)); transition:opacity .6s ease; }
.pd-stage img.exp{ opacity:0; }
.pd-stage.exploded img.asm{ opacity:0; }
.pd-stage.exploded img.exp{ opacity:1; }
.pd-stage .toggle-hint{ position:absolute; bottom:1rem; left:50%; transform:translateX(-50%);
           font-family:var(--f-mono); font-size:.58rem; letter-spacing:.2em; text-transform:uppercase; color:var(--steel-dim);
           border:1px solid var(--line); border-radius:999px; padding:.4rem .9rem; background:rgba(0,0,0,.45); backdrop-filter:blur(6px); }

.pd-code{ font-family:var(--f-mono); font-size:.7rem; letter-spacing:.2em; color:var(--copper); text-transform:uppercase; }
.pd-title{ font-family:var(--f-display); font-weight:500; font-size:clamp(2.4rem,5vw,4rem); letter-spacing:-.025em; line-height:1; margin-top:.6rem; }
.pd-desc{ color:var(--ash); line-height:1.7; margin-top:1.4rem; max-width:42ch; }
.pd-chips{ display:flex; flex-wrap:wrap; gap:.6rem; margin-top:1.8rem; }
.pd-chip{ font-family:var(--f-mono); font-size:.72rem; border:1px solid var(--line); border-radius:999px; padding:.5rem .9rem; color:var(--steel-dim); }
.pd-chip b{ color:var(--steel); font-weight:500; }
.pd-actions{ display:flex; flex-wrap:wrap; gap:1rem; margin-top:2rem; }

.spec-table{ border-top:1px solid var(--line-soft); }
.spec-table .r{ display:grid; grid-template-columns:1fr auto; gap:1rem; padding:1.1rem 0; border-bottom:1px solid var(--line-soft); }
.spec-table .sk{ font-family:var(--f-mono); font-size:.74rem; letter-spacing:.1em; text-transform:uppercase; color:var(--ash); }
.spec-table .sv{ font-size:.95rem; color:var(--steel); text-align:right; }

.feat{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line-soft); border-block:1px solid var(--line-soft); }
.feat .c{ background:var(--void); padding:2rem 1.5rem; }
.feat .fn{ font-family:var(--f-mono); font-size:.66rem; color:var(--copper); }
.feat h4{ font-family:var(--f-display); font-weight:500; font-size:1.15rem; margin-top:.9rem; }
.feat p{ color:var(--ash); font-size:.84rem; margin-top:.5rem; line-height:1.55; }
@media (max-width:820px){ .feat{ grid-template-columns:1fr; } }

.apps{ display:flex; flex-wrap:wrap; gap:.7rem; }
.app{ font-family:var(--f-mono); font-size:.78rem; border:1px solid var(--line); border-radius:10px; padding:.7rem 1.1rem; color:var(--steel-dim); }

.other{ display:grid; grid-template-columns:1fr 1fr; gap:1.5rem; }
@media (max-width:640px){ .other{ grid-template-columns:1fr; } }
.other-card{ border:1px solid var(--line-soft); border-radius:16px; padding:1.8rem; display:flex; justify-content:space-between; align-items:center; transition:border-color .3s, transform .3s; }
.other-card:hover{ border-color:rgba(200,130,60,.4); transform:translateY(-4px); }
.other-card .oc-code{ font-family:var(--f-mono); font-size:.62rem; letter-spacing:.16em; color:var(--copper); text-transform:uppercase; }
.other-card h3{ font-family:var(--f-display); font-weight:500; font-size:1.5rem; margin-top:.4rem; }
.other-card .go{ font-family:var(--f-mono); color:var(--steel-dim); transition:color .25s, transform .25s; }
.other-card:hover .go{ color:var(--copper); transform:translateX(4px); }

/* Sayfa geçiş fade'i: stiller güvenlik için site.js içinde inline tanımlıdır */