/* ============ Reset & Base ============ */
*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }
body{
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:#111; line-height:1.6; background:#fff;
}
img{ max-width:100%; display:block; }

/* Vars */
:root{
  --purple:#6B3CE9; --purple-dark:#5328c8; --orange:#f77c3b;
  --bg-soft:#f7f8fa; --text:#111; --muted:#555; --white:#fff;
  --shadow:0 10px 30px rgba(0,0,0,.08);
}

/* Progress bar */
#progressbar{
  position:fixed; top:0; left:0; height:3px; width:0%;
  background:linear-gradient(90deg,#6B3CE9,#f77c3b);
  z-index:9999; box-shadow:0 0 10px rgba(107,60,233,.45);
}

/* Navbar */
.navbar{
  position:sticky; top:0; z-index:100; display:flex; align-items:center; gap:16px;
  background:#fff; padding:12px 24px; box-shadow:0 1px 0 rgba(0,0,0,.06);
  transition: box-shadow .2s ease, background .2s ease;
}
.navbar.scrolled{ box-shadow:0 6px 18px rgba(0,0,0,.08); background:#fff; }
.logo img{ height:40px; width:auto; }
.menu{ flex:1; display:flex; justify-content:center; }
.menu ul{ display:flex; gap:28px; list-style:none; margin:0; padding:0; }
.menu a{ color:var(--text); text-decoration:none; font-weight:600; }
.menu a:hover{ color:var(--purple); }
.btn-primary{
  display:inline-block; background:var(--purple); color:#fff !important;
  padding:10px 18px; border-radius:999px; font-weight:700; text-decoration:none;
  box-shadow:0 8px 22px rgba(107,60,233,.25);
}
.btn-primary:hover{ background:var(--purple-dark); }
.only-desktop{ display:block; }
.only-mobile{ display:none; }

/* Hamburger (mobile) */
.nav-toggle{ display:none; }
.nav-toggle-btn{
  display:none; width:40px; height:32px; align-items:center; justify-content:center;
  flex-direction:column; gap:5px; cursor:pointer;
}
.nav-toggle-btn span{ width:26px; height:3px; background:#111; border-radius:2px; transition:.25s; }

/* Hero */
.hero{
  display:grid; grid-template-columns:1.1fr 1fr; align-items:center; gap:40px;
  max-width:1200px; padding:60px 24px 40px; margin:0 auto;
}
.hero-text h1{ font-size:44px; line-height:1.15; margin:0 0 16px; }
.hero-text p{ max-width:520px; color:#444; margin:0 0 24px; }
.highlight-orange{ color:var(--orange); } .highlight-purple{ color:var(--purple); }
.hero-visual{ display:flex; justify-content:center; }
.hero-visual img{ max-width:560px; opacity:0; transform:scale(.96); animation:fadeZoom .8s ease-out .12s forwards; }
@keyframes fadeZoom{ to{ opacity:1; transform:scale(1);} }

/* Referanslar */
.references{
  position:relative; overflow:hidden; background:var(--bg-soft);
  padding:40px 0; text-align:center;
}
.references h2{ margin:0 0 24px; font-size:20px; }
.logos{ position:relative; overflow:hidden; }
.logos-track{
  display:flex; align-items:center; gap:64px;
  width:max-content; will-change:transform; animation:marquee 22s linear infinite;
}
.logos img{ height:50px; object-fit:contain; transition:transform .25s, opacity .25s; }
.logos img:hover{ transform:translateY(-2px); opacity:1; }
@keyframes marquee{ from{ transform:translateX(0); } to{ transform:translateX(-50%); } }

/* Hizmetler */
.services{ max-width:1100px; margin:0 auto; padding:56px 24px; text-align:center; }
.services h2{ margin:0 0 28px; }
.services-grid{ display:grid; gap:20px; grid-template-columns:repeat(3,1fr); }
.service-box{
  background:#fff; border:1px solid #eee; border-radius:18px; padding:20px; text-align:left;
  box-shadow:var(--shadow); transition:transform .2s, box-shadow .2s, background .2s, color .2s;
}
.service-box .icon{ font-size:24px; margin-bottom:10px; }
.service-box h3{ margin:0 0 6px; }
.service-box p{ margin:0; color:#444; }
.service-box:hover{
  background:var(--orange); color:#fff; transform:translateY(-6px);
  box-shadow:0 16px 36px rgba(247,124,59,.35);
}
.service-box:hover p{ color:#fff; }
.btn-orange{
  display:inline-block; margin-top:24px; padding:10px 18px; border-radius:999px;
  background:var(--orange); color:#fff; text-decoration:none; font-weight:700;
  box-shadow:0 8px 22px rgba(247,124,59,.25);
}
.btn-orange:hover{ filter:brightness(.95); }

/* Timeline */
.alt-timeline{ padding:56px 16px; background:#fff; }
.alt-timeline .alt-container{ max-width:1100px; margin:0 auto; }
.alt-timeline .alt-head{ text-align:center; margin-bottom:26px; }
.alt-timeline .alt-head h2{ font-size:28px; margin:0 0 6px; }
.alt-timeline .alt-head .alt-sub{ margin:0; color:#667085; font-size:15px; }
.tl{
  list-style:none; margin:0; padding:0; display:grid; gap:48px;
  margin-left:80px; margin-right:80px;
}
.tl-item{
  position:relative; display:grid; grid-template-columns:220px 1fr;
  grid-template-areas:"media content"; align-items:center; column-gap:40px;
  background:#fff; border-radius:18px; border:1px solid #efeafc;
  box-shadow:0 18px 44px rgba(19,16,34,.08);
  padding:32px 28px; transition:transform .25s, box-shadow .25s, border-color .25s, opacity .5s, transform .5s;
  opacity:0; transform:translateY(12px);
}
.tl-item.is-in{ opacity:1; transform:translateY(0); }
.tl-item:hover{ transform:translateY(-3px); box-shadow:0 26px 60px rgba(19,16,34,.12); }
.tl-dot{
  position:absolute; top:50%; width:64px; height:78px; border-radius:18px;
  background:linear-gradient(180deg,#7a54f3 0%, #5a33e6 100%); color:#fff;
  font-weight:800; font-size:20px; display:grid; place-items:center;
  box-shadow:0 12px 28px rgba(90,51,230,.35), inset 0 0 0 1px rgba(255,255,255,.22); z-index:1;
}
.tl-item:nth-child(odd) .tl-dot{ left:-46px; transform:translate(-50%,-50%); }
.tl-item:nth-child(even) .tl-dot{ right:-46px; transform:translate(50%,-50%); }
.tl-media{ grid-area:media; display:grid; place-items:center; background:transparent; }
.tl-media img{ width:140px; height:auto; object-fit:contain; }
.tl-content{ grid-area:content; }
.tl-title{ margin:0 0 10px; font-size:22px; font-weight:800; }
.tl-desc{ margin:0; color:#4a4a4a; font-size:15.5px; line-height:1.66; }
.tl-item:nth-child(even){ grid-template-columns:1fr 220px; grid-template-areas:"content media"; }

/* Case Studies */
.case-studies{ padding:56px 16px; background:#fff; }
.cs-container{ max-width:1100px; margin:0 auto; }
.cs-head{ text-align:center; margin-bottom:30px; }
.cs-head h2{ font-size:28px; margin:0 0 8px; }
.cs-sub{ margin:0; color:#667085; }
.cs-list{ display:grid; gap:40px; }
.cs-card{
  display:grid; grid-template-columns:1.2fr 1fr; background:#fff; border:1px solid #f0edff;
  border-radius:18px; box-shadow:0 18px 44px rgba(19,16,34,.08); overflow:hidden;
  transition:transform .25s ease, box-shadow .25s ease, opacity .6s ease, transform .6s ease;
  opacity:0; transform:translateY(16px);
}
.cs-card.is-in{ opacity:1; transform:translateY(0); }
.cs-card:hover{ transform:translateY(-4px); box-shadow:0 26px 60px rgba(19,16,34,.12); }
.cs-card:nth-child(even){ grid-template-columns:1fr 1.2fr; }
.cs-card:nth-child(even) .cs-media{ order:2; }
.cs-media{ margin:0; aspect-ratio:16/10; overflow:hidden; }
.cs-media img{ width:100%; height:100%; object-fit:cover; transform:scale(1.02); transition:transform .45s ease; }
.cs-card:hover .cs-media img{ transform:scale(1.06); }
.cs-body{ padding:26px 30px; display:flex; flex-direction:column; justify-content:center; }
.cs-client{ color:var(--purple); font-weight:700; font-size:14px; margin-bottom:8px; display:block; }
.cs-title{ font-size:22px; font-weight:800; margin:0 0 10px; color:#111; }
.cs-desc{ color:#444; font-size:15.5px; line-height:1.66; margin:0; }

/* ==== ÇALIŞMALARIMIZ GALERİ ==== */
.gallery-section{
  padding:60px 16px;
  background:#f9f9fb;
  text-align:center;
}
.gallery-section h2{ font-size:32px; margin-bottom:12px; }
.gallery-section p{ color:#555; margin-bottom:40px; }
.gallery-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:24px;
  max-width:1100px;
  margin:0 auto;
}
.gallery-item{
  position:relative; overflow:hidden; border-radius:16px;
  box-shadow:0 10px 28px rgba(0,0,0,.06); cursor:pointer; background:#fff;
  aspect-ratio: 4 / 3;
}
.gallery-item img{
  width:100%; height:100%; object-fit:cover;
  transition:transform .4s ease, filter .4s ease;
}
.gallery-item:hover img{ transform:scale(1.08); filter:brightness(.85); }
.gallery-caption{
  position:absolute; left:0; right:0; bottom:0;
  background:linear-gradient(180deg,transparent,rgba(0,0,0,.6));
  color:#fff; padding:14px 16px; font-weight:600; text-align:left;
  opacity:0; transform:translateY(10px); transition:.3s ease;
}
.gallery-item:hover .gallery-caption{ opacity:1; transform:translateY(0); }

/* İletişim + FAQ */
.contact-wrap{
  max-width:1100px; margin:0 auto; padding:56px 24px;
  display:grid; grid-template-columns:1.1fr .9fr; gap:40px; align-items:start; scroll-margin-top:90px;
}
.contact-card{
  background:#fff; border:1px solid #eef0fb; border-radius:18px; box-shadow:0 18px 44px rgba(19,16,34,.06); padding:28px;
}
.contact-card h2{ margin:0 0 8px; font-size:28px; }
.contact-lead{ margin:0 0 22px; color:#667085; }
.form-grid{ display:grid; gap:14px; }
.input{
  width:100%; height:46px; border-radius:12px; border:1px solid #e6e8f5; background:#fbfcff;
  padding:0 14px; font-size:15px; transition:border-color .2s, box-shadow .2s, background .2s;
}
.textarea{
  width:100%; min-height:120px; border-radius:12px; border:1px solid #e6e8f5; background:#fbfcff;
  padding:12px 14px; font-size:15px; resize:vertical; transition:border-color .2s, box-shadow .2s, background .2s;
}
.input:focus, .textarea:focus{ outline:0; border-color:var(--purple); box-shadow:0 0 0 4px rgba(107,60,233,.12); background:#fff; }
.btn-submit{
  appearance:none; border:0; height:48px; border-radius:999px; width:100%;
  font-weight:800; color:#fff; cursor:pointer; background:linear-gradient(90deg,var(--orange),#ff9a5e);
  box-shadow:0 10px 22px rgba(247,124,59,.28); transition:transform .15s ease, filter .2s ease, box-shadow .2s ease;
}
.btn-submit:hover{ filter:brightness(1.04); transform:translateY(-1px); }
.btn-submit:active{ transform:translateY(0); box-shadow:0 6px 14px rgba(247,124,59,.25); }
.faq-wrap h3{ margin:0 0 14px; font-size:24px; }
.faq{ display:grid; gap:12px; }
.faq details{
  border:1px solid #eef0fb; border-radius:14px; overflow:hidden; background:#fbfbff; box-shadow:0 6px 20px rgba(19,16,34,.04);
  transition:box-shadow .2s, border-color .2s, background .2s;
}
.faq details[open]{ background:#fff; box-shadow:0 10px 28px rgba(19,16,34,.06); }
.faq summary{ list-style:none; cursor:pointer; padding:14px 16px; font-weight:700; color:#111; }
.faq summary::-webkit-details-marker{ display:none; }
.faq summary::before{ content:"▸"; font-size:16px; margin-right:8px; transform:translateY(-1px); display:inline-block; transition:transform .2s; }
.faq details[open] summary::before{ transform:rotate(90deg) translateX(2px); }
.faq .answer{ padding:0 16px 14px 32px; color:#444; line-height:1.7; }

/* Footer */
.site-footer{ background:#5a33e6; color:#fff; margin-top:48px; flex-shrink:0; }
.footer-container{ max-width:1100px; margin:0 auto; padding:36px 16px; }
.footer-top{ display:grid; grid-template-columns:1.2fr 1fr 1fr; gap:28px; align-items:start; }
.footer-logo{ height:46px; width:auto; display:block; margin-bottom:10px; }
.f-copy{ margin:8px 0 0; font-size:13px; line-height:1.6; opacity:.9; }
.f-nav h3, .f-contact h3{ margin:0 0 10px; font-size:16px; }
.f-nav ul{ list-style:none; margin:0; padding:0; display:grid; gap:8px; }
.f-nav a{ color:#fff; text-decoration:none; opacity:.9; }
.f-nav a:hover{ opacity:1; text-decoration:underline; }
.f-form{ display:flex; gap:8px; }
.f-form input{ flex:1; height:38px; border-radius:999px; border:0; padding:0 12px; background:#fff; color:#111; }
.chip-btn{ background:#111; color:#fff; border:0; height:38px; border-radius:999px; padding:0 14px; cursor:pointer; }
.chip-btn:hover{ filter:brightness(.95); }
.f-social{ display:flex; gap:10px; margin-top:12px; }
.si{ width:34px; height:34px; display:grid; place-items:center; border-radius:999px; background:rgba(255,255,255,.12); color:#fff; text-decoration:none; }
.si:hover{ background:rgba(255,255,255,.18); }
.f-sep{ border:0; height:1px; background:rgba(255,255,255,.2); margin:24px 0; }
.footer-bottom{ display:grid; grid-template-columns:1fr 1fr 1fr; gap:12px; }
.f-mini{ font-size:13px; } .f-muted{ opacity:.8; margin-right:6px; }
.f-site{ color:#fff; text-decoration:none; } .f-site:hover{ text-decoration:underline; }
address{ font-style:normal; }

/* Reveal fallback (JS class) */
.reveal{ opacity:1; transform:none; }

/* Responsive */
@media (max-width:1024px){
  .hero{ grid-template-columns:1fr; text-align:center; }
  .hero-text p{ margin:0 auto 24px; }
  .hero-visual img{ max-width:420px; margin:0 auto; }
  .services-grid{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width:900px){
  .contact-wrap{ grid-template-columns:1fr; gap:28px; padding:48px 20px; }
}
@media (max-width:760px){
  .only-desktop{ display:none; } .only-mobile{ display:block; }
  .menu{ display:none; }
  .nav-toggle-btn{ display:flex; margin-left:auto; }
  .nav-toggle:checked ~ .menu{
    display:block; position:fixed; left:12px; right:12px; top:64px;
    background:rgba(255,255,255,.96); border:1px solid rgba(0,0,0,.06); border-radius:16px;
    box-shadow:0 20px 50px rgba(0,0,0,.12); z-index:999;
  }
  .menu ul{ flex-direction:column; gap:0; padding:8px; }
  .menu li + li{ border-top:1px solid rgba(0,0,0,.06); }
  .menu a{ display:block; padding:12px 10px; border-radius:12px; }
  .menu a:hover{ background:rgba(107,60,233,.08); }
  .services-grid{ grid-template-columns:1fr; }
  .tl{ margin-left:0; margin-right:0; gap:32px; }
  .tl-item{ grid-template-columns:1fr; grid-template-areas:"media" "content"; row-gap:14px; padding:20px; }
  .tl-item:nth-child(even){ grid-template-columns:1fr; grid-template-areas:"media" "content"; }
  .tl-dot{ width:54px; height:66px; font-size:18px; left:-70px !important; right:auto !important; transform:translate(-50%,-50%) !important; }
  .cs-card, .cs-card:nth-child(even){ grid-template-columns:1fr; }
  .cs-media{ aspect-ratio:16/9; }
  .footer-top{ grid-template-columns:1fr; }
  .footer-bottom{ grid-template-columns:1fr; }
}

/* Subtle hero appear */
.hero-text, .hero-visual { opacity:0; transform:translateY(20px); animation:fadeUp .8s ease forwards; }
.hero-visual { animation-delay:.3s; }
@keyframes fadeUp { to { opacity:1; transform:none; } }
/* === ÇALIŞMALARIMIZ / GALERİ === */
.gallery-section{
  padding:64px 16px;
  background:#f7f8fa;
  text-align:center;
}
.gallery-section h2{
  margin:0 0 8px;
  font-size:clamp(22px,3.4vw,32px);
}
.gallery-section p{
  margin:0 auto 28px;
  color:#555;
  max-width:760px;
}

.gallery-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(260px, 1fr));
  gap:24px;
  max-width:1100px;
  margin:0 auto;
}

.gallery-item{
  position:relative;
  border-radius:16px;
  background:#fff;
  box-shadow:0 12px 28px rgba(0,0,0,.06);
  overflow:hidden;
  aspect-ratio:4/3;                /* düzgün oran */
}

.gallery-item img{
  width:100%;
  height:100%;
  display:block;
  object-fit:cover;
  transform:scale(1.02);
  transition:transform .35s ease;
}
.gallery-item:hover img{ transform:scale(1.06); }

.gallery-caption{
  position:absolute;
  left:0; right:0; bottom:0;
  padding:12px 14px;
  font-weight:700;
  font-size:14px;
  color:#111;
  background:linear-gradient(180deg,transparent 0%, rgba(255,255,255,.92) 60%, #fff 100%);
  text-align:left;
}

/* Görsel yüklenmezse nazik fallback */
.gallery-item.is-error{
  display:grid;
  place-items:center;
  background:
    repeating-linear-gradient(45deg,#f4f4f6 0 8px,#efeff5 8px 16px);
}
.gallery-item.is-error::after{
  content:"Görsel bulunamadı";
  color:#666;
  font-weight:600;
  background:rgba(255,255,255,.9);
  padding:6px 10px;
  border-radius:10px;
  box-shadow:0 6px 18px rgba(0,0,0,.06);
}
/* ========== GALLERY (preview + full page) ========== */

/* Ortak başlık yapısı */
.gallery-section,
.gallery-page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 64px 16px;
  text-align: center;
}
.gallery-section h2,
.gallery-page h1 {
  margin: 0 0 8px;
  font-size: clamp(24px, 3.4vw, 34px);
}
.gallery-section p,
.gallery-page p.sub {
  margin: 0 0 26px;
  color: #667085;
}

/* Grid */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

/* Kart */
.gallery-item {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  background: #fff;
  border: 1px solid #f0edff;
  box-shadow: 0 18px 44px rgba(19,16,34,.08);
  transition: transform .25s ease, box-shadow .25s ease, opacity .6s ease, transform .6s ease;
}
.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 26px 60px rgba(19,16,34,.12);
}
.gallery-item img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 16/11;
  object-fit: cover;
  transform: scale(1.02);
  transition: transform .45s ease;
}
.gallery-item:hover img {
  transform: scale(1.06);
}

/* Hover overlay + başlık */
.gallery-item::after {
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(to top, rgba(0,0,0,.45), rgba(0,0,0,0));
  opacity:0; transition:.25s;
}
.gallery-item:hover::after{ opacity:1; }

.gallery-caption{
  position:absolute; left:14px; right:14px; bottom:12px;
  color:#fff; font-weight:700; text-align:left;
  text-shadow:0 1px 10px rgba(0,0,0,.35);
  opacity:0; transform: translateY(6px); transition:.25s;
}
.gallery-item:hover .gallery-caption{ opacity:1; transform:none; }

/* “Tüm çalışmaları gör” butonu */
.gallery-actions{
  margin-top:24px;
}
.btn-outline{
  display:inline-block; padding:10px 18px; border-radius:999px;
  border:2px solid var(--purple); color:var(--purple);
  text-decoration:none; font-weight:800;
}
.btn-outline:hover{ background:rgba(107,60,233,.08); }

/* Full page galeri (daha sık grid) */
.gallery-page .gallery-grid{
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

/* LIGHTBOX */
#lightbox{
  position:fixed; inset:0; background:rgba(0,0,0,.84);
  display:none; align-items:center; justify-content:center; z-index:9999;
}
#lightbox.is-open{ display:flex; }
.lightbox-img{
  max-width: min(96vw, 1400px);
  max-height: 86vh; border-radius:14px; box-shadow:0 10px 40px rgba(0,0,0,.6);
}
.lightbox-close, .lightbox-prev, .lightbox-next{
  position:fixed; top:50%; transform:translateY(-50%);
  width:44px; height:44px; border-radius:999px; display:grid; place-items:center;
  background:rgba(255,255,255,.12); color:#fff; border:1px solid rgba(255,255,255,.25);
  cursor:pointer; user-select:none;
}
.lightbox-close{ top:24px; right:24px; transform:none; }
.lightbox-prev{ left:24px; }
.lightbox-next{ right:24px; }
.lightbox-prev:hover, .lightbox-next:hover, .lightbox-close:hover{
  background:rgba(255,255,255,.18);
}

/* Küçük ekran iyileştirmesi */
@media (max-width:640px){
  .lightbox-prev, .lightbox-next{ display:none; }
}