/* EDK Çelik — kurumsal endüstriyel tema (sektör konvansiyonlarına uygun) */

@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@500;600;700&family=Inter:wght@400;500;600;700&display=swap');

:root{
  --navy: #102a4c;
  --navy-2: #0b1e38;
  --navy-3: #16345c;
  --orange: #c77914;
  --orange-2: #a96711;
  --ink: #1b2027;
  --ink-soft: #5c6673;
  --paper: #ffffff;
  --paper-2: #f2f4f7;
  --line: #e1e5ea;
  --shadow: 0 16px 34px -16px rgba(16,42,76,0.30);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Inter',system-ui,sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
.form-honeypot{ position:absolute; left:-10000px; width:1px; height:1px; overflow:hidden; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }

/* ---------- Soft load & scroll animations ---------- */
body{ opacity:0; }
body.is-ready{ opacity:1; transition:opacity .5s cubic-bezier(.16,1,.3,1); }

@keyframes fadeUp{
  from{ opacity:0; transform:translateY(16px); }
  to{ opacity:1; transform:translateY(0); }
}
.hero-content > *,
.page-header .wrap > *{
  opacity:0;
  animation:fadeUp .7s cubic-bezier(.16,1,.3,1) forwards;
}
.hero-content > *:nth-child(1),
.page-header .wrap > *:nth-child(1){ animation-delay:.05s; }
.hero-content > *:nth-child(2),
.page-header .wrap > *:nth-child(2){ animation-delay:.15s; }
.hero-content > *:nth-child(3),
.page-header .wrap > *:nth-child(3){ animation-delay:.25s; }
.hero-content > *:nth-child(4),
.page-header .wrap > *:nth-child(4){ animation-delay:.35s; }
.hero-content > *:nth-child(5){ animation-delay:.45s; }

.reveal{
  opacity:0;
  transform:translateY(22px);
  transition:opacity .7s cubic-bezier(.16,1,.3,1), transform .7s cubic-bezier(.16,1,.3,1);
}
.reveal.is-visible{ opacity:1; transform:translateY(0); }

@media (prefers-reduced-motion: reduce){
  body{ opacity:1; }
  .hero-content > *,
  .page-header .wrap > *{ animation:none; opacity:1; }
  .reveal{ opacity:1; transform:none; transition:none; }
}
.wrap{
  max-width:1220px;
  margin:0 auto;
  padding:0 28px;
}
h1,h2,h3,h4{
  font-family:'Oswald',sans-serif;
  font-weight:600;
  line-height:1.15;
  margin:0;
  color:var(--navy);
  text-transform:uppercase;
  letter-spacing:0.01em;
}
p{ margin:0; }

.kicker{
  font-family:'Oswald',sans-serif;
  font-weight:600;
  font-size:14px;
  letter-spacing:0.06em;
  text-transform:uppercase;
  color:var(--navy);
}
.section-dark .kicker{ color:#fff; }

/* ---------- Utility bar ---------- */
.utility-bar{
  background:var(--navy-2);
  color:#c7d2e0;
  font-size:13px;
}
.utility-bar .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:38px;
}
.utility-left{ display:flex; align-items:center; gap:26px; }
.utility-left a{ display:flex; align-items:center; gap:7px; color:#c7d2e0; }
.utility-left svg{ width:14px; height:14px; color:var(--orange); }
.utility-right{ display:flex; align-items:center; gap:14px; }
.utility-right a{ color:#9fb0c4; display:flex; }
.utility-right svg{ width:15px; height:15px; }
.utility-right a:hover{ color:#fff; }

/* ---------- Header ---------- */
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:100;
  background:transparent;
  transition:padding .5s cubic-bezier(.16,1,.3,1);
}
.site-header .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:86px;
  background:transparent;
  border-bottom:1px solid transparent;
  box-shadow:0 0 0 rgba(16,42,76,0);
  border-radius:0 0 24px 24px;
  transition:height .5s cubic-bezier(.16,1,.3,1), padding .5s cubic-bezier(.16,1,.3,1),
             max-width .5s cubic-bezier(.16,1,.3,1), border-radius .5s cubic-bezier(.16,1,.3,1),
             box-shadow .5s cubic-bezier(.16,1,.3,1), border-color .5s cubic-bezier(.16,1,.3,1),
             background .5s cubic-bezier(.16,1,.3,1);
}
.site-header.is-scrolled{ padding-top:14px; }
.site-header.is-scrolled .wrap{
  max-width:1040px;
  height:62px;
  padding-left:26px;
  padding-right:16px;
  background:var(--paper);
  border-bottom-color:var(--line);
  border-radius:999px;
  box-shadow:0 14px 34px -10px rgba(16,42,76,0.22);
}
.site-header.is-scrolled .logo-mark{ height:40px; }
.site-header.is-scrolled .nav-cta .btn-primary.btn-sm{ padding:9px 18px; }
.site-header.is-scrolled .main-nav a{ color:var(--navy); }
.site-header.is-scrolled .nav-toggle{ background:var(--paper); border-color:var(--line); }
.site-header.is-scrolled .nav-toggle span,
.site-header.is-scrolled .nav-toggle span::before,
.site-header.is-scrolled .nav-toggle span::after{ background:var(--navy); }
.logo{
  display:flex;
  align-items:center;
  gap:12px;
  color:var(--navy);
}
.logo-mark{
  width:auto;
  height:54px;
  flex:none;
  object-fit:contain;
  transition:height .5s cubic-bezier(.16,1,.3,1);
}
.logo-text{
  font-family:'Oswald',sans-serif;
  font-weight:700;
  font-size:23px;
  letter-spacing:0.01em;
  line-height:1.1;
  text-transform:uppercase;
}
.logo-text span{ color:var(--orange); }
.logo-sub{
  display:block;
  font-family:'Inter',sans-serif;
  font-weight:600;
  font-size:11px;
  letter-spacing:0.14em;
  color:var(--ink-soft);
  text-transform:uppercase;
  margin-top:3px;
}

.main-nav ul{ display:flex; align-items:center; gap:2px; }
.main-nav a{
  display:block;
  padding:12px 16px;
  font-family:'Oswald',sans-serif;
  font-weight:600;
  font-size:14.5px;
  letter-spacing:0.03em;
  text-transform:uppercase;
  color:#fff;
  border-bottom:3px solid transparent;
  transition:color .25s cubic-bezier(.16,1,.3,1), border-color .25s cubic-bezier(.16,1,.3,1);
}
.main-nav a:hover,
.main-nav a.active{ color:var(--orange); border-color:var(--orange); }

.nav-cta{ display:flex; align-items:center; gap:22px; }

.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border:1px solid rgba(255,255,255,0.5);
  background:transparent;
  cursor:pointer;
  position:relative;
  transition:background .3s cubic-bezier(.16,1,.3,1), border-color .3s cubic-bezier(.16,1,.3,1);
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  display:block;
  position:absolute;
  left:10px;
  right:10px;
  height:2px;
  background:#fff;
  transition:transform .3s cubic-bezier(.16,1,.3,1), opacity .2s ease, top .3s cubic-bezier(.16,1,.3,1), background .2s ease;
}
.nav-toggle span{ top:20px; }
.nav-toggle span::before{ top:-7px; }
.nav-toggle span::after{ top:7px; }
.nav-toggle[aria-expanded="true"] span{ background:transparent; }
.nav-toggle[aria-expanded="true"] span::before{ top:0; transform:rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after{ top:0; transform:rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:14px 26px;
  font-family:'Oswald',sans-serif;
  font-weight:600;
  font-size:14.5px;
  letter-spacing:0.03em;
  text-transform:uppercase;
  border:2px solid transparent;
  border-radius:8px;
  cursor:pointer;
  transition:transform .3s cubic-bezier(.16,1,.3,1), background .3s cubic-bezier(.16,1,.3,1), color .3s cubic-bezier(.16,1,.3,1), border-color .3s cubic-bezier(.16,1,.3,1), box-shadow .3s cubic-bezier(.16,1,.3,1);
}
.btn-primary{ background:var(--orange); color:#fff; }
.btn-primary:hover{ background:var(--orange-2); transform:translateY(-3px); box-shadow:0 10px 22px rgba(199,121,20,0.28); }
.btn-navy{ background:var(--navy); color:#fff; }
.btn-navy:hover{ background:var(--navy-3); transform:translateY(-3px); box-shadow:0 10px 22px rgba(16,42,76,0.28); }
.btn-ghost{ background:transparent; border-color:var(--navy); color:var(--navy); }
.btn-ghost:hover{ background:var(--navy); color:#fff; transform:translateY(-3px); }
.btn-ghost-light{ background:transparent; border-color:rgba(255,255,255,0.5); color:#fff; }
.btn-ghost-light:hover{ background:#fff; color:var(--navy); }
.btn-sm{ padding:10px 18px; font-size:13px; }

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:'Oswald',sans-serif;
  font-weight:600;
  font-size:14px;
  letter-spacing:0.03em;
  text-transform:uppercase;
  color:var(--navy);
}
.link-arrow svg{ width:16px; height:16px; transition:transform .3s cubic-bezier(.16,1,.3,1); color:var(--orange); }
.link-arrow:hover svg{ transform:translateX(4px); }

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:center;
  background:var(--navy);
  overflow:hidden;
}
.hero-bg{
  position:absolute;
  inset:0;
  z-index:0;
  background:linear-gradient(120deg,var(--navy-2),var(--navy));
}
.hero-bg img,
.hero-bg video{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.hero-video{
  z-index:1;
  opacity:0;
  transform:scale(1.025);
  filter:saturate(.82) contrast(1.08);
  transition:opacity 1.35s ease;
  pointer-events:none;
}
.hero-video.is-active{
  opacity:1;
  transform:scale(1);
}
.hero-video.is-mirrored{ transform:scaleX(-1) scale(1.025); }
.hero-video.is-mirrored.is-active{ transform:scaleX(-1) scale(1); }
.hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:2;
  background:
    linear-gradient(0deg,rgba(7,20,38,.38) 0%,rgba(7,20,38,.04) 48%,rgba(7,20,38,.2) 100%),
    linear-gradient(100deg,rgba(11,30,56,.96) 0%,rgba(11,30,56,.86) 42%,rgba(11,30,56,.55) 72%,rgba(11,30,56,.34) 100%);
}
.hero .wrap{ position:relative; z-index:1; width:100%; padding-top:60px; padding-bottom:60px; }
.hero-content{
  max-width:660px;
  animation:heroContentAlign 1.5s cubic-bezier(.16,1,.3,1) forwards;
}
@keyframes heroContentAlign{
  0%,52%{ transform:translateX(clamp(120px,18vw,280px)); }
  100%{ transform:translateX(0); }
}
.hero-content .kicker{ color:var(--orange); }
.hero-content > h1:first-child{
  margin-top:20px;
  font-size:clamp(36px,5.2vw,60px);
  color:#fff;
  border-left:5px solid var(--orange);
  padding-left:22px;
  animation:heroTitleSettle 1.35s cubic-bezier(.16,1,.3,1) .12s forwards;
}
@keyframes heroTitleSettle{
  0%{ opacity:0; transform:scale(.98); }
  28%{ opacity:1; transform:scale(1); }
  100%{ opacity:1; transform:scale(1); }
}
.hero-content > .hero-lede{
  margin-top:24px;
  max-width:50ch;
  font-size:17.5px;
  color:#cfd8e3;
  animation-delay:1.08s;
}
.hero-content > .hero-actions{
  margin-top:36px;
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  animation-delay:1.2s;
}
.hero-content > .hero-strip{
  margin-top:52px;
  display:flex;
  gap:0;
  flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,0.18);
  animation-delay:1.34s;
}
.hero-strip div{
  padding:18px 30px 0 0;
  margin-right:30px;
  border-top:2px solid var(--orange);
  margin-top:-1px;
}
.hero-strip strong{
  display:block;
  font-family:'Oswald',sans-serif;
  font-weight:600;
  font-size:16px;
  letter-spacing:0.02em;
  text-transform:uppercase;
  color:#fff;
}
.hero-strip span{ font-size:13px; color:#a9b7c8; }
.hero-scroll{
  position:absolute;
  z-index:3;
  left:50%;
  bottom:24px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  color:rgba(255,255,255,.82);
  font-family:'Oswald',sans-serif;
  font-size:10px;
  font-weight:600;
  letter-spacing:.16em;
  text-transform:uppercase;
  transform:translateX(-50%);
  transition:color .25s ease;
}
.hero-scroll:hover{ color:#fff; }
.hero-scroll-mouse{
  position:relative;
  display:block;
  width:25px;
  height:39px;
  border:1.5px solid currentColor;
  border-radius:999px;
}
.hero-scroll-mouse i{
  position:absolute;
  top:7px;
  left:50%;
  width:3px;
  height:8px;
  border-radius:999px;
  background:var(--orange);
  transform:translateX(-50%);
  animation:heroScrollDot 1.8s cubic-bezier(.45,0,.2,1) infinite;
}
@keyframes heroScrollDot{
  0%{ opacity:0; transform:translate(-50%,0); }
  25%{ opacity:1; }
  72%{ opacity:1; }
  100%{ opacity:0; transform:translate(-50%,15px); }
}

/* ---------- Sections ---------- */
section{ padding:92px 0; }
.section-head{ max-width:640px; margin-bottom:48px; }
.section-head h2{ margin-top:12px; font-size:clamp(28px,3.4vw,40px); }
.section-head p{ margin-top:16px; color:var(--ink-soft); font-size:16.5px; }
.section-alt{ background:var(--paper-2); }
.section-dark{ background:var(--navy); color:#fff; }
.section-dark h2{ color:#fff; }
.section-dark .section-head p{ color:#b6c2d1; }
.head-row{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:30px;
  margin-bottom:48px;
}
.head-row .section-head{ margin-bottom:0; }

/* ---------- Value / capability tiles ---------- */
.value-grid{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  box-shadow:0 22px 52px -38px rgba(16,42,76,.55);
}
.value-tile{
  position:relative;
  overflow:hidden;
  background:var(--paper);
  padding:34px 26px;
  transition:opacity .7s cubic-bezier(.16,1,.3,1), transform .7s cubic-bezier(.16,1,.3,1), box-shadow .35s ease;
}
.value-tile::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:4px;
  background:linear-gradient(90deg,var(--orange),#e4a040);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .65s cubic-bezier(.16,1,.3,1);
  transition-delay:calc(.16s + (var(--value-index) * .15s));
}
.value-tile::after{
  content:"";
  position:absolute;
  width:150px;
  height:150px;
  top:-90px;
  right:-90px;
  border-radius:50%;
  background:rgba(199,121,20,.09);
  transform:scale(0);
  transition:transform .65s cubic-bezier(.16,1,.3,1);
  transition-delay:calc(.3s + (var(--value-index) * .15s));
}
.value-tile .icon-tile{
  position:relative;
  z-index:1;
  width:58px; height:58px;
  background:var(--navy);
  color:#fff;
  display:flex; align-items:center; justify-content:center;
  transition:background .35s ease, transform .65s cubic-bezier(.16,1,.3,1), box-shadow .35s ease;
}
.value-tile .icon-tile svg{ width:28px; height:28px; }
.value-tile .icon-tile svg path,
.value-tile .icon-tile svg circle{
  stroke-dasharray:70;
  stroke-dashoffset:0;
}
.value-tile h3{ position:relative; z-index:1; margin-top:20px; font-size:18px; transition:color .3s ease; }
.value-tile p{ position:relative; z-index:1; margin-top:10px; color:var(--ink-soft); font-size:14.5px; }
.value-grid.is-enhanced .value-tile{
  opacity:0;
  transform:translateY(38px) scale(.96);
  transition-delay:calc(var(--value-index) * .15s);
}
.value-grid.is-enhanced .value-tile .icon-tile{ transform:rotate(-10deg) scale(.72); }
.value-grid.is-enhanced .value-tile .icon-tile svg path,
.value-grid.is-enhanced .value-tile .icon-tile svg circle{ stroke-dashoffset:70; }
.value-grid.is-enhanced.is-in-view .value-tile{ opacity:1; transform:translateY(0) scale(1); }
.value-grid.is-in-view .value-tile::before{ transform:scaleX(1); }
.value-grid.is-in-view .value-tile::after{ transform:scale(1); }
.value-grid.is-in-view .value-tile .icon-tile{
  transform:rotate(0) scale(1);
  transition-delay:calc(.18s + (var(--value-index) * .15s));
}
.value-grid.is-in-view .value-tile .icon-tile svg path,
.value-grid.is-in-view .value-tile .icon-tile svg circle{
  stroke-dashoffset:0;
  transition:stroke-dashoffset .9s ease;
  transition-delay:calc(.28s + (var(--value-index) * .15s));
}
.value-grid.animation-complete .value-tile,
.value-grid.animation-complete .value-tile::before,
.value-grid.animation-complete .value-tile::after,
.value-grid.animation-complete .value-tile .icon-tile,
.value-grid.animation-complete .value-tile .icon-tile svg path,
.value-grid.animation-complete .value-tile .icon-tile svg circle{ transition-delay:0s; }
.value-grid.is-in-view .value-tile:hover{
  z-index:2;
  transform:translateY(-9px) scale(1.015);
  box-shadow:0 22px 38px -22px rgba(16,42,76,.5);
}
.value-tile:hover .icon-tile{ background:var(--orange); box-shadow:0 12px 24px -12px rgba(199,121,20,.8); }
.value-tile:hover h3{ color:var(--orange-2); }

/* ---------- Product photo cards (banner style) ---------- */
.product-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.product-card{
  position:relative;
  aspect-ratio:4/3.2;
  overflow:hidden;
  isolation:isolate;
}
.product-grid .product-card{ display:block; }
.product-card img{
  width:100%; height:100%; object-fit:cover;
  transition:transform .35s ease;
}
.product-card:hover img{ transform:scale(1.06); }
.product-card::after{
  content:"";
  position:absolute; inset:0;
  background:linear-gradient(0deg, rgba(11,20,35,0.92) 0%, rgba(11,20,35,0.35) 55%, rgba(11,20,35,0) 80%);
  z-index:1;
}
.product-card .card-body{
  position:absolute; left:0; right:0; bottom:0;
  z-index:2;
  padding:20px;
  border-bottom:4px solid var(--orange);
}
.product-card h3{
  color:#fff;
  font-size:19px;
}
.product-card p{
  margin-top:6px;
  color:#cfd8e3;
  font-size:13px;
}
.product-card .tag{
  display:inline-block;
  margin-top:10px;
  font-family:'Oswald',sans-serif;
  font-size:11.5px;
  font-weight:600;
  letter-spacing:0.05em;
  text-transform:uppercase;
  color:var(--navy);
  background:#fff;
  padding:4px 10px;
}

/* ---------- Home product carousel ---------- */
.product-carousel{ overflow:hidden; width:100%; padding:4px 0 12px; }
.product-carousel-track{
  display:flex;
  width:max-content;
  animation:productCarousel calc(var(--product-count) * 3.8s) linear infinite;
  will-change:transform;
}
.product-carousel-set{ display:flex; gap:20px; padding-right:20px; }
.product-carousel .product-card{ display:block; flex:0 0 270px; width:270px; }
.product-carousel .product-card-title,
.product-carousel .product-card-copy{ display:block; }
.product-carousel .product-card-title{
  font-family:'Oswald',sans-serif;
  color:#fff;
  font-size:19px;
  font-weight:600;
  line-height:1.15;
  text-transform:uppercase;
}
.product-carousel .product-card-copy{ margin-top:6px; color:#cfd8e3; font-size:13px; line-height:1.45; }
.product-carousel:hover .product-carousel-track{ animation-play-state:paused; }
@keyframes productCarousel{ to{ transform:translateX(-50%); } }

/* ---------- Product detail ---------- */
.product-detail-section{ padding:70px 0 94px; }
.product-detail{ display:grid; grid-template-columns:minmax(0,1fr) minmax(380px,0.9fr); align-items:center; gap:70px; margin-top:26px; }
.product-detail-copy h1{ font-size:clamp(38px,5vw,64px); margin-top:14px; }
.product-detail-lede{ color:var(--navy); font-size:20px; line-height:1.5; margin-top:22px; font-weight:600; }
.product-detail-text{ margin-top:22px; color:var(--ink-soft); max-width:650px; }
.product-detail-actions{ display:flex; gap:12px; flex-wrap:wrap; margin-top:30px; }
.product-detail-media{ min-height:460px; overflow:hidden; background:var(--navy-2); position:relative; }
.product-detail-media::after{ content:""; position:absolute; inset:0; background:linear-gradient(145deg, rgba(16,42,76,.08), rgba(199,121,20,.14)); pointer-events:none; }
.product-detail-media img{ width:100%; height:100%; min-height:460px; object-fit:cover; }
.product-not-found{ max-width:620px; padding:56px 0; }
.product-not-found h1{ font-size:42px; margin-top:12px; }
.product-not-found p{ margin:14px 0 26px; color:var(--ink-soft); }

/* ---------- Product modal ---------- */
.product-modal{ position:fixed; inset:0; z-index:1000; display:none; align-items:center; justify-content:center; padding:24px; }
.product-modal.is-open{ display:flex; }
.product-modal-backdrop{ position:absolute; inset:0; background:rgba(6,17,33,.78); backdrop-filter:blur(7px); }
.product-modal-dialog{ position:relative; z-index:1; display:grid; grid-template-columns:minmax(0,1fr) minmax(320px,.9fr); width:min(100%,1000px); max-height:min(760px,calc(100vh - 48px)); overflow-x:hidden; overflow-y:auto; background:#fff; box-shadow:0 32px 80px rgba(0,0,0,.38); }
.product-modal-copy{ display:flex; flex-direction:column; min-height:500px; padding:54px 48px; }
.product-modal-copy h2{ font-size:clamp(32px,4vw,50px); margin-top:12px; }
.product-modal-lede{ margin-top:18px; color:var(--navy); font-size:18px; font-weight:600; line-height:1.45; }
.product-modal-text{ margin:20px 0 28px; color:var(--ink-soft); line-height:1.75; }
.product-modal-image{ min-height:100%; background:var(--navy-2); }
.product-modal-image img{ width:100%; height:100%; min-height:500px; object-fit:cover; }
.product-modal-close{ position:absolute; top:14px; right:14px; z-index:2; width:40px; height:40px; border:0; border-radius:50%; background:rgba(11,30,56,.9); color:#fff; font-size:28px; line-height:1; cursor:pointer; }
.product-modal-close:hover{ background:var(--orange); }
.product-modal-footer{ margin-top:auto; padding-top:26px; }
.product-modal-navigation{ display:flex; align-items:center; gap:12px; margin-top:18px; color:var(--ink-soft); font-size:12px; font-weight:600; letter-spacing:.04em; text-transform:uppercase; }
.product-modal-nav{ width:38px; height:38px; border:1px solid var(--line); border-radius:50%; background:#fff; color:var(--navy); cursor:pointer; transition:background .2s ease, color .2s ease, transform .2s ease; }
.product-modal-nav svg{ width:18px; height:18px; margin-top:3px; }
.product-modal-nav:hover{ background:var(--orange); border-color:var(--orange); color:#fff; transform:scale(1.08); }
body.modal-open{ overflow:hidden; }

/* ---------- Process ---------- */
.process{
  --process-line:0;
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin-top:8px;
}
.process::before,
.process::after{
  content:"";
  position:absolute;
  top:43px;
  left:12.5%;
  width:75%;
  height:3px;
  border-radius:999px;
}
.process::before{ background:var(--line); }
.process::after{
  background:linear-gradient(90deg,var(--orange),#e4a040);
  transform:scaleX(var(--process-line));
  transform-origin:left center;
  transition:transform 1.35s cubic-bezier(.16,1,.3,1) .12s;
}
.process.is-in-view{ --process-line:1; }
.process-step{
  position:relative;
  z-index:1;
  min-width:0;
  padding:0;
}
.process-step .step-num{
  width:88px;
  height:88px;
  display:grid;
  place-items:center;
  margin-bottom:24px;
  border:3px solid var(--line);
  border-radius:50%;
  background:var(--paper);
  box-shadow:0 0 0 8px var(--paper);
  font-family:'Oswald',sans-serif;
  font-weight:700;
  font-size:27px;
  line-height:1;
  color:var(--navy);
  transition:background .45s ease, border-color .45s ease, color .45s ease, transform .45s cubic-bezier(.16,1,.3,1), box-shadow .45s ease;
}
.process-step h3{ font-size:18px; transition:color .35s ease; }
.process-step p{ margin-top:9px; color:var(--ink-soft); font-size:14.5px; }
.process.is-enhanced .process-step{
  opacity:0;
  transform:translateY(28px);
  transition:opacity .65s cubic-bezier(.16,1,.3,1), transform .65s cubic-bezier(.16,1,.3,1);
  transition-delay:calc(var(--step-index) * .18s);
}
.process.is-enhanced.is-in-view .process-step{ opacity:1; transform:translateY(0); }
.process.is-in-view .process-step .step-num{
  border-color:var(--orange);
  background:var(--orange);
  color:#fff;
  transform:scale(1.04);
  box-shadow:0 0 0 8px var(--paper), 0 13px 28px -13px rgba(199,121,20,.75);
  transition-delay:calc(.18s + (var(--step-index) * .18s));
}
.process-step:hover .step-num{ transform:translateY(-5px) scale(1.06); }
.process-step:hover h3{ color:var(--orange-2); }

/* ---------- Sector tiles ---------- */
.sector-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.sector-tile{
  background:var(--paper);
  padding:30px 26px;
  display:flex;
  align-items:flex-start;
  gap:16px;
}
.sector-tile .icon-tile{
  width:46px; height:46px;
  background:var(--orange);
  color:#fff;
  display:flex; align-items:center; justify-content:center;
  flex:none;
}
.sector-tile .icon-tile svg{ width:22px; height:22px; }
.sector-tile h3{ font-size:16.5px; }
.sector-tile p{ margin-top:8px; color:var(--ink-soft); font-size:14px; }

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--navy);
  padding:60px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-60px; top:-60px;
  width:220px; height:220px;
  background:var(--orange);
  opacity:0.15;
  transform:rotate(20deg);
}
.cta-band .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
  flex-wrap:wrap;
  position:relative;
}
.cta-band h2{ color:#fff; font-size:clamp(26px,3.2vw,36px); }
.cta-band p{ margin-top:10px; color:#b6c2d1; font-size:15.5px; }

/* ---------- Footer ---------- */
.site-footer{ background:var(--navy-2); color:#aab7c7; }
.footer-logo{
  height:56px;
  width:auto;
}
.footer-top{
  display:grid;
  grid-template-columns:1.3fr 1fr 1fr 1.3fr;
  gap:44px;
  padding:64px 0 40px;
  border-bottom:1px solid rgba(255,255,255,0.09);
}
.footer-top h4{
  font-family:'Oswald',sans-serif;
  font-size:14px;
  letter-spacing:0.07em;
  text-transform:uppercase;
  color:#fff;
  margin-bottom:20px;
}
.footer-top p{ font-size:14px; color:#94a3b6; }
.footer-top ul{ display:flex; flex-direction:column; gap:11px; }
.footer-top a{ font-size:14px; color:#aab7c7; transition:color .15s ease; }
.footer-top a:hover{ color:var(--orange); }
.footer-contact-item{ display:flex; gap:12px; margin-bottom:14px; align-items:flex-start; }
.footer-contact-item svg{ width:17px; height:17px; color:var(--orange); flex:none; margin-top:2px; }
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:22px 0;
  font-size:13px;
  color:#7c8ba0;
  flex-wrap:wrap;
  gap:10px;
}

/* ---------- Page header (iç sayfalar) ---------- */
.page-header{
  position:relative;
  background:var(--navy);
  padding:138px 0 52px;
  overflow:hidden;
}
.page-header img{
  position:absolute; inset:0;
  width:100%; height:100%; object-fit:cover;
  opacity:0.22;
}
.page-header .wrap{ position:relative; }
.page-header h1{ margin-top:12px; font-size:clamp(32px,4.2vw,48px); color:#fff; }
.breadcrumb{ font-size:13px; color:#a9b7c8; }
.breadcrumb a:hover{ color:var(--orange); }
.page-header p{ margin-top:14px; max-width:58ch; color:#c3ccd8; font-size:16px; }

/* ---------- Split content ---------- */
.split{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
.split .lede{ margin-top:18px; color:var(--ink-soft); font-size:16.5px; }
.split .lede + .lede{ margin-top:14px; }
.split-photo{ position:relative; aspect-ratio:4/3.3; overflow:hidden; }
.split-photo img{ width:100%; height:100%; object-fit:cover; }
.about-photo-production img{ object-position:center 58%; }
.about-photo-crane img{ object-position:center 48%; }
.split-photo::before{
  content:"";
  position:absolute; left:0; top:0; bottom:0;
  width:6px;
  background:var(--orange);
}

/* ---------- Home about reveal ---------- */
.home-about-section{ overflow:hidden; }
.home-about-photo{
  isolation:isolate;
  background:var(--navy-2);
  border:1px solid rgba(16,42,76,.12);
  box-shadow:0 24px 54px -32px rgba(16,42,76,.62);
}
.home-about-photo img{ filter:saturate(.68) contrast(1.08) brightness(.76); }
.home-about-photo::before{ z-index:2; }
.home-about-photo::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  background:
    linear-gradient(90deg,rgba(11,30,56,.34),rgba(11,30,56,.06) 62%),
    linear-gradient(145deg,rgba(16,42,76,.14),rgba(199,121,20,.13));
  pointer-events:none;
}
.home-about-copy{
  position:relative;
  padding:20px 12px 20px 30px;
}
.home-about-copy::before{
  content:"";
  position:absolute;
  left:0;
  top:18px;
  width:4px;
  height:calc(100% - 36px);
  background:linear-gradient(180deg,var(--orange),rgba(199,121,20,.12));
  transform-origin:top;
}
.home-about-copy h2{ margin-top:14px; font-size:clamp(29px,3.25vw,43px); max-width:14ch; }
.home-about-copy .lede{ margin-top:20px; max-width:58ch; }
.home-about-copy .link-arrow{ margin-top:24px; }
.home-about-section.is-enhanced .home-about-copy::before{ transform:scaleY(0); }
.home-about-section.is-enhanced .home-about-copy > *{
  opacity:0;
  transform:translateX(-34px);
}
.home-about-section.is-enhanced .home-about-photo{
  opacity:1;
  transform:none;
  clip-path:inset(0 100% 0 0);
  transition:clip-path 1.05s cubic-bezier(.16,1,.3,1) .16s;
}
.home-about-section.is-enhanced .home-about-photo img{
  transform:scale(1.12);
  transition:transform 1.35s cubic-bezier(.16,1,.3,1) .12s;
}
.home-about-section.is-in-view .home-about-copy::before{
  transform:scaleY(1);
  transition:transform .75s cubic-bezier(.16,1,.3,1);
}
.home-about-section.is-in-view .home-about-copy > *{
  opacity:1;
  transform:translateX(0);
  transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1);
}
.home-about-section.is-in-view .home-about-copy > :nth-child(1){ transition-delay:.14s; }
.home-about-section.is-in-view .home-about-copy > :nth-child(2){ transition-delay:.27s; }
.home-about-section.is-in-view .home-about-copy > :nth-child(3){ transition-delay:.4s; }
.home-about-section.is-in-view .home-about-copy > :nth-child(4){ transition-delay:.53s; }
.home-about-section.is-in-view .home-about-photo{ clip-path:inset(0); }
.home-about-section.is-in-view .home-about-photo img{ transform:scale(1); }

.principle-list{ display:flex; flex-direction:column; }
.principle-list li{
  display:grid;
  grid-template-columns:56px 1fr;
  gap:20px;
  padding:26px 0;
  border-bottom:1px solid var(--line);
}
.principle-list li:first-child{ padding-top:0; }
.principle-list li:last-child{ border-bottom:none; }
.principle-list .p-num{
  font-family:'Oswald',sans-serif;
  font-weight:700;
  font-size:28px;
  color:var(--orange);
}
.principle-list h3{ font-size:18px; }
.principle-list p{ margin-top:8px; color:var(--ink-soft); font-size:15px; }

/* ---------- Contact page ---------- */
.contact-grid{ display:grid; grid-template-columns:0.85fr 1.15fr; gap:0; border:1px solid var(--line); }
.contact-panel{ background:var(--navy); color:#fff; padding:46px 40px; }
.contact-panel .kicker{ color:var(--orange); }
.contact-panel h2{ color:#fff; margin-top:14px; font-size:26px; }
.contact-info-list{ margin-top:30px; }
.contact-info-list li{
  display:flex;
  gap:14px;
  padding:16px 0;
  border-top:1px solid rgba(255,255,255,0.12);
}
.contact-info-list li:first-child{ border-top:none; padding-top:0; }
.contact-info-list svg{ width:19px; height:19px; color:var(--orange); flex:none; margin-top:2px; }
.contact-info-list .label{
  font-family:'Oswald',sans-serif;
  font-size:12px;
  letter-spacing:0.06em;
  text-transform:uppercase;
  color:#93a3b9;
}
.contact-info-list .value{ margin-top:3px; font-size:15px; }
.map-embed{ margin-top:30px; border:1px solid rgba(255,255,255,0.15); height:200px; overflow:hidden; }
.map-embed iframe{ width:100%; height:100%; border:0; filter:grayscale(0.2) contrast(1.05); }

.form-panel{ background:var(--paper); padding:46px 40px; }
form.contact-form{ display:flex; flex-direction:column; gap:18px; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.field label{
  display:block;
  font-family:'Oswald',sans-serif;
  font-size:12.5px;
  letter-spacing:0.04em;
  text-transform:uppercase;
  color:var(--ink-soft);
  margin-bottom:8px;
}
.field input,
.field textarea,
.field select{
  width:100%;
  border:1px solid var(--line);
  background:var(--paper-2);
  padding:13px 15px;
  font-family:'Inter',sans-serif;
  font-size:15px;
  color:var(--ink);
}
.field input:focus,
.field textarea:focus,
.field select:focus{ outline:none; border-color:var(--orange); }
.field textarea{ resize:vertical; min-height:130px; }
.form-note{ font-size:12.5px; color:var(--ink-soft); }
.form-alert{ padding:12px 16px; border-radius:8px; font-size:14px; margin-bottom:18px; }
.form-alert-success{ background:#eaf7ee; color:#1e7a34; }
.form-alert-error{ background:#fdecea; color:#b3261e; }

/* ---------- WhatsApp float ---------- */
.wa-float{
  position:fixed;
  left:24px; bottom:24px;
  z-index:200;
  width:56px; height:56px;
  background:#25D366;
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 10px 24px -6px rgba(0,0,0,0.4);
}
.wa-float svg{ width:28px; height:28px; color:#fff; }

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .hero h1{ padding-left:16px; border-left-width:4px; }
  .value-grid{ grid-template-columns:repeat(2,1fr); }
  .product-grid{ grid-template-columns:repeat(2,1fr); }
  .process{ grid-template-columns:repeat(2,1fr); gap:36px 30px; }
  .process::before,.process::after{ display:none; }
  .sector-grid{ grid-template-columns:repeat(2,1fr); }
  .split{ grid-template-columns:1fr; }
  .product-detail{ grid-template-columns:1fr; gap:34px; }
  .product-detail-media{ min-height:360px; order:-1; }
  .product-detail-media img{ min-height:360px; }
  .product-modal-dialog{ grid-template-columns:1fr; max-width:620px; }
  .product-modal-copy{ min-height:0; padding:42px 30px 32px; }
  .product-modal-image{ min-height:280px; order:-1; }
  .product-modal-image img{ min-height:280px; max-height:360px; }
  .footer-top{ grid-template-columns:1fr 1fr; gap:34px; }
  .contact-grid{ grid-template-columns:1fr; }
  .form-row{ grid-template-columns:1fr; }
  .head-row{ flex-direction:column; align-items:flex-start; }
  .utility-left span.hide-sm{ display:none; }
}
@media (max-width:720px){
  .utility-bar .wrap{ height:auto; padding-top:8px; padding-bottom:8px; }
  .main-nav{
    position:fixed;
    top:86px; left:0; right:0; bottom:0;
    background:var(--paper);
    transform:translateX(100%);
    transition:transform .35s cubic-bezier(.16,1,.3,1);
    overflow-y:auto;
    padding:6px 0;
    border-top:1px solid var(--line);
  }
  .main-nav.open{ transform:translateX(0); }
  .main-nav ul{ flex-direction:column; align-items:flex-start; gap:0; }
  .main-nav a{ padding:16px 28px; font-size:16px; width:100%; border-bottom:1px solid var(--line); color:var(--navy); }
  .nav-toggle{ display:block; }
  .nav-cta .btn-ghost,
  .nav-cta .btn-primary.btn-sm{ display:none; }
  .value-grid,.product-grid,.process,.footer-top,.sector-grid{ grid-template-columns:1fr; }
  .process{ gap:0; }
  .process::before,.process::after{
    display:block;
    top:38px;
    bottom:38px;
    left:34px;
    width:3px;
    height:auto;
  }
  .process::after{
    transform:scaleY(var(--process-line));
    transform-origin:center top;
  }
  .process-step{
    display:grid;
    grid-template-columns:70px minmax(0,1fr);
    column-gap:20px;
    padding-bottom:34px;
  }
  .process-step:last-child{ padding-bottom:0; }
  .process-step .step-num{
    grid-column:1;
    grid-row:1 / span 2;
    width:70px;
    height:70px;
    margin:0;
    font-size:23px;
    box-shadow:0 0 0 6px var(--paper);
  }
  .process.is-in-view .process-step .step-num{ box-shadow:0 0 0 6px var(--paper),0 12px 24px -13px rgba(199,121,20,.75); }
  .process-step h3{ grid-column:2; align-self:end; padding-top:8px; }
  .process-step p{ grid-column:2; margin-top:7px; }
  .cta-band .wrap{ flex-direction:column; align-items:flex-start; }
  section{ padding:64px 0; }
  .hero{ min-height:auto; padding:20px 0; }
  .hero-bg video{ object-position:center center; }
  .hero-content{ animation-name:heroContentAlignMobile; }
  .hero-scroll{ display:none; }
  @keyframes heroContentAlignMobile{
    0%,52%{ transform:translateX(28px); }
    100%{ transform:translateX(0); }
  }
}
@media (prefers-reduced-motion: reduce){
  .product-carousel{ overflow-x:auto; }
  .product-carousel-track{ animation:none; }
  .product-carousel .product-card{ flex-basis:240px; width:240px; }
  .process{ --process-line:1; }
  .process::after,.process-step,.process-step .step-num{ transition:none !important; }
  .process.is-enhanced .process-step{ opacity:1; transform:none; }
  .value-grid.is-enhanced .value-tile{ opacity:1; transform:none; transition:none; }
  .value-grid .value-tile::before{ transform:scaleX(1); transition:none; }
  .value-grid .value-tile::after{ transform:scale(1); transition:none; }
  .value-grid .value-tile .icon-tile{ transform:none; transition:none; }
  .value-grid .value-tile .icon-tile svg path,
  .value-grid .value-tile .icon-tile svg circle{ stroke-dashoffset:0; transition:none; }
  .hero-video{ transition:none; transform:none; }
  .hero-video.is-mirrored{ transform:scaleX(-1); }
  .hero-content{ animation:none; transform:none; }
  .hero-content > h1:first-child{ animation:none; opacity:1; transform:none; }
  .hero-scroll-mouse i{ animation:none; }
  .home-about-section.is-enhanced .home-about-copy::before{ transform:none; }
  .home-about-section.is-enhanced .home-about-copy > *{ opacity:1; transform:none; transition:none; }
  .home-about-section.is-enhanced .home-about-photo{ clip-path:none; transition:none; }
  .home-about-section.is-enhanced .home-about-photo img{ transform:none; transition:none; }
}