:root{
  --bg:#05070c;
  --accent:#3aa8ff;
  --text:#ffffff;
  --header-h: 90px;
}

*{
  margin:0;
  padding:0;
  box-sizing:border-box;
  font-family:Segoe UI, Arial;
}

html{scroll-behavior:smooth;}

body{
  background:var(--bg);
  color:var(--text);
  overflow-x:hidden;
}

.container{
  width:90%;
  max-width:1200px;
  margin:auto;
}

/* HEADER */
.header{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  padding:18px 0;
  backdrop-filter:blur(14px);
  background:rgba(5,7,12,.45);
  z-index:1000;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.header-inner{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
}

.brand{display:flex; align-items:center; text-decoration:none;}
.logo{height:45px;}

.nav-toggle{
  display:none;
  background:transparent;
  border:1px solid rgba(255,255,255,.12);
  border-radius:12px;
  padding:10px 12px;
  cursor:pointer;
}

.nav-toggle .bar{
  display:block;
  width:22px;
  height:2px;
  background:rgba(255,255,255,.85);
  margin:4px 0;
  border-radius:2px;
}

.nav{
  display:flex;
  align-items:center;
  gap:18px;
  flex-wrap:wrap;
  justify-content:flex-end;
}

.nav a{
  color:white;
  text-decoration:none;
  font-size:14px;
  opacity:.82;
  transition:.25s;
  letter-spacing:.6px;
}

.nav a:hover{
  opacity:1;
  color:var(--accent);
}

/* LANGUAGE SWITCH */
.lang-switch{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:10px;
  padding-left:14px;
  border-left:1px solid rgba(255,255,255,.14);
}

.lang{
  background:transparent;
  border:none;
  color:rgba(255,255,255,.78);
  cursor:pointer;
  font-size:12px;
  letter-spacing:1px;
  padding:6px 4px;
  transition:.25s;
}

.lang:hover{
  color:#fff;
  text-shadow:0 0 16px rgba(58,168,255,.35);
}

.lang.active{
  color:#fff;
  text-shadow:0 0 18px rgba(58,168,255,.55);
}

.lang-sep{
  color:rgba(255,255,255,.35);
  font-size:12px;
  transform:translateY(-1px);
}

/* MAIN */
.main{ padding-top: var(--header-h); }

/* ===== HERO — Otomatik Slider ===== */
.hero{
  min-height:100svh;
  position:relative;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
}

.hero-slider{
  position:absolute;
  inset:0;
  z-index:0;
}

.hero-slider .slide{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:0;
  transition:opacity 1.2s ease;
}

.hero-slider .slide.active{
  opacity:1;
}

.hero-overlay{
  position:absolute;
  inset:0;
  z-index:1;
  background:linear-gradient(to bottom, rgba(0,0,0,.35), rgba(0,0,0,.78));
}

.hero-content{
  position:relative;
  z-index:2;
  text-align:center;
  padding:0 12px;
}

.hero-content h1{
  font-size:60px;
  letter-spacing:2px;
  text-shadow: 0 0 22px rgba(58,168,255,.18);
}

.hero-content p{
  margin-top:18px;
  opacity:.86;
  letter-spacing:1px;
}

/* Hero slider dots */
.hero-dots{
  position:absolute;
  bottom:28px;
  left:50%;
  transform:translateX(-50%);
  z-index:3;
  display:flex;
  gap:8px;
}

.hero-dot{
  width:8px;
  height:8px;
  border-radius:50%;
  background:rgba(255,255,255,.35);
  cursor:pointer;
  transition:.3s;
  border:none;
  padding:0;
}

.hero-dot.active{
  background:#3aa8ff;
  transform:scale(1.25);
}

/* BUTTON */
.btn{
  display:inline-block;
  margin-top:35px;
  padding:14px 36px;
  border-radius:30px;
  background:linear-gradient(135deg,#3aa8ff,#7c5cff);
  color:#08101f;
  font-weight:700;
  text-decoration:none;
  transition:.3s;
  border:none;
  cursor:pointer;
}

.btn:hover{
  transform:translateY(-2px);
  box-shadow:0 20px 40px rgba(58,168,255,.28);
}

/* SECTION */
.section{ padding:100px 0; }

.section-dark{
  background:
    radial-gradient(700px 260px at 20% 35%, rgba(58,168,255,.12), transparent 60%),
    radial-gradient(700px 260px at 80% 70%, rgba(124,92,255,.10), transparent 60%),
    linear-gradient(180deg, rgba(10,15,31,.6), rgba(5,7,12,0));
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.section-head{
  max-width: 760px;
  margin-bottom: 26px;
}

.section-head h2{
  font-size: 34px;
  letter-spacing: .6px;
}

.section-head p{
  margin-top: 10px;
  color: rgba(255,255,255,.68);
  line-height: 1.6;
}

/* SOLUTIONS */
.solutions-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 26px;
}

.solution-card{
  position: relative;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 18px;
  padding: 22px;
  transition: .28s ease;
  overflow:hidden;
}

.solution-card::before{
  content:"";
  position:absolute;
  inset:-60%;
  background: radial-gradient(circle, rgba(58,168,255,.14), transparent 55%);
  opacity: .35;
  transition: .28s ease;
}

.solution-card:hover{
  transform: translateY(-6px);
  border-color: rgba(58,168,255,.25);
  box-shadow: 0 22px 60px rgba(58,168,255,.12);
}

.solution-card:hover::before{ opacity: 1; }

.solution-top{
  position: relative;
  z-index: 1;
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom: 14px;
}

.solution-icon{
  font-size: 16px;
  color: rgba(255,255,255,.8);
  text-shadow: 0 0 16px rgba(58,168,255,.25);
}

.solution-tag{
  font-size: 12px;
  letter-spacing: 1px;
  color: rgba(255,255,255,.70);
  border: 1px solid rgba(255,255,255,.14);
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.02);
}

.solution-card h3{ position: relative; z-index: 1; font-size: 16px; }
.solution-card p{
  position: relative;
  z-index: 1;
  margin-top: 10px;
  color: rgba(255,255,255,.68);
  line-height: 1.55;
  font-size: 14px;
}

.solution-link{
  position: relative;
  z-index: 1;
  display:inline-block;
  margin-top: 16px;
  text-decoration:none;
  color: rgba(255,255,255,.86);
  letter-spacing: .6px;
  transition: .25s;
}

.solution-link:hover{
  color: #ffffff;
  text-shadow: 0 0 18px rgba(58,168,255,.35);
}

/* ABOUT */
.about-box{
  margin-top:18px;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 18px;
  padding: 22px;
  color: rgba(255,255,255,.72);
  line-height: 1.7;
}

/* FORM */
.form{
  margin-top:18px;
  max-width:560px;
  display:grid;
  gap:12px;
}

.form input,.form textarea{
  background: rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.10);
  border-radius:14px;
  padding:14px 16px;
  color:#fff;
  outline:none;
}

.form input:focus,.form textarea:focus{
  border-color: rgba(58,168,255,.35);
  box-shadow:0 0 0 4px rgba(58,168,255,.10);
}

.toast{
  display:none;
  margin-top: 10px;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(58,168,255,.25);
  background: rgba(58,168,255,.08);
}

.toast strong{display:block;}
.toast span{display:block;margin-top:6px;color:rgba(255,255,255,.72);font-size:13px;}
.toast.is-show{display:block;}

/* FOOTER */
.footer{
  border-top:1px solid rgba(255,255,255,.06);
  padding:26px 0;
  color:rgba(255,255,255,.55);
}

.footer-inner{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
}

.brand-signature-footer{
  font-size:12px;
  letter-spacing:1.2px;
  color:rgba(255,255,255,.6);
  text-transform:uppercase;
  border-left:1px solid rgba(255,255,255,.08);
  padding-left:16px;
}

/* MOBILE NAV */
@media (max-width: 980px){
  .nav-toggle{display:inline-block;}

  .nav{
    position: fixed;
    top: var(--header-h);
    right: 16px;
    left: 16px;
    display: grid;
    gap: 10px;
    padding: 14px;
    border-radius: 16px;
    background: rgba(5,7,12,.92);
    border: 1px solid rgba(255,255,255,.10);
    backdrop-filter: blur(16px);
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: .25s ease;
  }

  body.nav-open .nav{
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav a{
    padding: 10px 10px;
    border-radius: 12px;
    background: rgba(255,255,255,.02);
    border: 1px solid rgba(255,255,255,.06);
  }

  .lang-switch{
    margin-left: 0;
    padding-left: 0;
    border-left: none;
    padding-top: 6px;
    justify-content:flex-start;
  }

  .solutions-grid{grid-template-columns: repeat(2, 1fr);}
  .hero-content h1{font-size:46px;}
}

@media (max-width: 640px){
  .solutions-grid{grid-template-columns: 1fr;}
  .hero-content h1{font-size:40px;}
}

/* CONTACT */
.contact-grid{
  margin-top: 18px;
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap:16px;
  align-items:start;
}

.contact-card, .map-card{
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 18px;
  padding: 22px;
}

.contact-card h3, .map-card h3{
  font-size: 16px;
  letter-spacing: .3px;
}

.contact-list{
  list-style:none;
  margin-top: 14px;
  display:grid;
  gap:12px;
}

.contact-list li{
  display:grid;
  gap:6px;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.02);
}

.contact-label{
  font-size: 12px;
  letter-spacing: .8px;
  color: rgba(255,255,255,.60);
}

.contact-value{
  font-size: 14px;
  color: rgba(255,255,255,.86);
  text-decoration:none;
}

a.contact-value:hover{
  color:#fff;
  text-shadow: 0 0 18px rgba(58,168,255,.30);
}

.contact-cta{
  margin-top: 14px;
}

.map-embed{
  margin-top: 12px;
  border-radius: 16px;
  overflow:hidden;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.02);
}

.map-embed iframe{
  width:100%;
  height: 320px;
  border:0;
  display:block;
}

.map-link{
  display:inline-block;
  margin-top: 12px;
  text-decoration:none;
  color: rgba(255,255,255,.86);
  letter-spacing: .6px;
  transition:.25s;
}

.map-link:hover{
  color:#fff;
  text-shadow: 0 0 18px rgba(58,168,255,.35);
}

@media (max-width: 980px){
  .contact-grid{grid-template-columns:1fr;}
  .map-embed iframe{height: 280px;}
}

/* MODERN FORM */
.modern-form{
  margin-top:20px;
  max-width:700px;
}

.field-group{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}

.floating-field{
  position:relative;
  margin-top:18px;
}

.floating-field input,
.floating-field textarea{
  width:100%;
  padding:18px 14px 12px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.03);
  color:#fff;
  outline:none;
  font-size:14px;
  transition:.25s;
}

.floating-field textarea{
  resize:vertical;
  min-height:130px;
}

.floating-field label{
  position:absolute;
  left:14px;
  top:16px;
  font-size:13px;
  color:rgba(255,255,255,.55);
  pointer-events:none;
  transition:.2s ease;
}

.floating-field input:focus,
.floating-field textarea:focus{
  border-color: rgba(58,168,255,.45);
  box-shadow:0 0 0 4px rgba(58,168,255,.12);
  background:rgba(255,255,255,.05);
}

.floating-field input:focus + label,
.floating-field textarea:focus + label,
.floating-field input:not(:placeholder-shown) + label,
.floating-field textarea:not(:placeholder-shown) + label{
  top:6px;
  font-size:11px;
  color:rgba(58,168,255,.9);
}

.full-btn{
  width:100%;
  margin-top:24px;
  padding:16px;
  font-size:14px;
  letter-spacing:.8px;
}

@media (max-width:900px){
  .field-group{grid-template-columns:1fr;}
}

.brand-signature{
  margin-top:22px;
  font-size:13px;
  letter-spacing:1.2px;
  color:rgba(255,255,255,.75);
  text-transform:uppercase;
  border-top:1px solid rgba(255,255,255,.08);
  padding-top:14px;
}

.hero-positioning{
  margin-top:14px;
  font-size:14px;
  letter-spacing:.8px;
  color:rgba(255,255,255,.85);
  max-width:680px;
  margin-left:auto;
  margin-right:auto;
  line-height:1.6;
  border-top:1px solid rgba(255,255,255,.08);
  padding-top:12px;
}

/* WHY SHUKI */
.why-grid{
  margin-top:30px;
  display:grid;
  grid-template-columns: repeat(3,1fr);
  gap:16px;
}

.why-card{
  background: rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.10);
  border-radius:18px;
  padding:22px;
  transition:.3s;
}

.why-card:hover{
  transform:translateY(-6px);
  border-color:rgba(58,168,255,.25);
  box-shadow:0 22px 60px rgba(58,168,255,.12);
}

.why-card h3{
  font-size:16px;
  letter-spacing:.4px;
}

.why-card p{
  margin-top:10px;
  color:rgba(255,255,255,.68);
  font-size:14px;
  line-height:1.6;
}

@media (max-width:980px){
  .why-grid{ grid-template-columns:1fr; }
}

/* GALLERY */
.gallery-filters{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top: 16px;
  margin-bottom: 16px;
}

.filter-btn{
  border:1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.02);
  color: rgba(255,255,255,.78);
  padding:10px 14px;
  border-radius:999px;
  cursor:pointer;
  letter-spacing:.6px;
  transition:.25s;
  font-size:13px;
}

.filter-btn:hover{
  color:#fff;
  border-color: rgba(58,168,255,.35);
  box-shadow: 0 18px 40px rgba(58,168,255,.10);
}

.filter-btn.active{
  color:#08101f;
  border-color: transparent;
  background: linear-gradient(135deg,#3aa8ff,#7c5cff);
  font-weight:700;
}

.gallery-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:16px;
  margin-top: 6px;
}

.gallery-card{
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 18px;
  overflow:hidden;
  transition: .28s ease;
  cursor:pointer;
}

.gallery-card:hover{
  transform: translateY(-6px);
  border-color: rgba(58,168,255,.25);
  box-shadow: 0 22px 60px rgba(58,168,255,.12);
}

.gallery-media{
  height: 210px;
  background-size: cover;
  background-position: center;
  position: relative;
}

.gallery-media::after{
  content:"";
  position:absolute;
  inset:0;
  background: linear-gradient(to bottom, rgba(0,0,0,.05), rgba(0,0,0,.70));
}

.gallery-body{
  padding: 16px 18px 16px;
}

.gallery-tags{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  margin-bottom: 10px;
}

.gallery-tags span{
  font-size: 12px;
  color: rgba(255,255,255,.72);
  border: 1px solid rgba(255,255,255,.14);
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.02);
}

.gallery-body h3{
  font-size: 16px;
  letter-spacing: .2px;
}

.gallery-card.is-hidden{ display:none; }

@media (max-width: 980px){
  .gallery-grid{ grid-template-columns: repeat(2, 1fr); }
  .gallery-media{ height: 180px; }
}

@media (max-width: 640px){
  .gallery-grid{ grid-template-columns: 1fr; }
  .gallery-media{ height: 220px; }
}

/* ===== LIGHTBOX — tek ve temiz tanım ===== */
.lightbox{
  display:none;
  position:fixed;
  inset:0;
  z-index:2000;
  align-items:center;
  justify-content:center;
  padding:6vh 4vw;
}

.lightbox.is-open{ display:flex; }

.lightbox-backdrop{
  position:absolute;
  inset:0;
  background:rgba(0,0,0,.75);
  backdrop-filter:blur(6px);
}

.lightbox-panel{
  position:relative;
  width:min(960px, 92vw);
  max-height:88vh;
  border:1px solid rgba(255,255,255,.14);
  border-radius:18px;
  background:rgba(10,15,31,.88);
  overflow:hidden;
  box-shadow: 0 30px 90px rgba(0,0,0,.55);
}

.lightbox-close{
  position:absolute;
  right:12px;
  top:10px;
  width:40px;
  height:40px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.06);
  color:#fff;
  cursor:pointer;
  font-size:22px;
  z-index:5;
  line-height:1;
}

.lightbox-close:hover{
  border-color:rgba(58,168,255,.35);
}

.lightbox-title{
  padding:16px 56px 10px 18px;
  font-size:14px;
  letter-spacing:.6px;
  color:rgba(255,255,255,.86);
  border-bottom:1px solid rgba(255,255,255,.08);
}

.lightbox-img{
  width:100%;
  height:auto;
  display:block;
  max-height:calc(88vh - 60px);
  object-fit:contain;
  background:#000;
}

.lightbox-nav{
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  width:54px;
  height:54px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(0,0,0,.45);
  color:#fff;
  font-size:34px;
  cursor:pointer;
  z-index:5;
  display:grid;
  place-items:center;
  transition:.2s;
  line-height:1;
}

.lightbox-nav:hover{
  border-color:rgba(58,168,255,.35);
  box-shadow:0 16px 40px rgba(58,168,255,.12);
  transform:translateY(-50%) scale(1.05);
}

.lightbox-nav.prev{ left:14px; }
.lightbox-nav.next{ right:14px; }

/* ===== WhatsApp Sabit Butonu ===== */
.whatsapp-btn{
  position:fixed;
  bottom:28px;
  right:28px;
  z-index:900;
  width:58px;
  height:58px;
  border-radius:50%;
  background:#25d366;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 6px 24px rgba(37,211,102,.35);
  transition:.3s;
  text-decoration:none;
}

.whatsapp-btn:hover{
  transform:scale(1.08) translateY(-3px);
  box-shadow:0 12px 32px rgba(37,211,102,.45);
}

@media (max-width:640px){
  .whatsapp-btn{
    bottom:18px;
    right:16px;
    width:52px;
    height:52px;
  }
}