:root {
  --bg:#ffffff;
  --surface:#f7f7f9;
  --text:#1f2937;
  --muted:#6b7280;
  --accent:#1e3a8a;
  --accent-2:#d4af37;
  --card:#ffffff;
  --border:#e5e7eb;
  --shadow:0 10px 30px rgba(0,0,0,.06);
}

* { box-sizing: border-box; }

html,body {
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:Poppins,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;
  line-height:1.6;
}

img { display:block; max-width:100%; height:auto; }

.container { max-width:1180px; margin:0 auto; padding:0 20px; }

.section { padding:72px 0; }

.section.alt { background:var(--surface); }

.section h2 { font-size:32px; margin:0 0 12px 0; line-height:1.2; }

.section-lead { max-width:720px; color:var(--muted); margin:0 0 24px; }

/* ================= HEADER ================= */
.site-header {
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,.9);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--border);
}
.header-inner { display:flex; align-items:center; justify-content:space-between; padding:14px 0; }
.brand { display:flex; align-items:center; gap:10px; text-decoration:none; color:inherit; }
.logo { width:220px; height:auto; border-radius:8px; background:transparent; box-shadow:none; }
.nav-toggle { width:42px; height:42px; border:1px solid var(--border); border-radius:10px; background:#fff; display:none; align-items:center; justify-content:center; gap:4px; cursor:pointer; }
.nav-toggle .bar { width:18px; height:2px; background:var(--text); display:block; }
.nav-menu { display:flex; gap:26px; list-style:none; margin:0; padding:0; }
.nav-menu a { text-decoration:none; color:var(--text); font-weight:500; }
.nav-menu a:hover { color:var(--accent); }
.theme-toggle { background:none; border:none; font-size:22px; cursor:pointer; color:var(--text); }

/* ================= HERO SLIDER ================= */
.hero-slider {
  position: relative;
  height: 90vh;
  overflow: hidden;
}

/* ✅ Fixlenmiş Slider Geçişleri */
.slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0;
  z-index: 0;
  transform: scale(1.05);
  transition: opacity 1.4s ease-in-out, transform 10s ease-in-out;
  will-change: opacity, transform;
}

.slide.active {
  opacity: 1;
  z-index: 1;
  transform: scale(1.12);
}

/* Ken Burns efekti */
@keyframes kenburns {
  0% { transform: scale(1.05); }
  100% { transform: scale(1.12); }
}

.overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  z-index: 2;
}

.hero-text {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  text-align: center;
  max-width: 700px;
  padding: 0 20px;
}

.hero-text h1 {
  font-size: 48px;
  line-height: 1.2;
  margin: 0 0 16px;
}
.hero-text span { color: #60a5fa; }
.hero-text p { font-size: 18px; opacity: 0.9; margin: 0 0 24px; }
.hero-buttons { display: flex; justify-content: center; gap: 16px; }

@media (max-width: 768px) {
  .hero-text h1 { font-size: 32px; }
  .hero-text p { font-size: 16px; }
}

/* ================= GRID & CARDS ================= */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);padding:22px}
.card.product{position:relative;border-radius:16px;overflow:hidden;background:#fff;padding:6px;box-shadow:0 4px 14px rgba(0,0,0,.15);transition:all .3s ease;height:300px;display:flex;align-items:center;justify-content:center}
.card.product img{width:100%;height:100%;object-fit:contain;display:block;border-radius:12px;background:#fff;transition:opacity .4s ease}
.card.product::after{content:"İncele";position:absolute;inset:0;background:rgba(0,0,0,0);color:#fff;font-weight:600;font-size:18px;display:flex;align-items:center;justify-content:center;opacity:0;transition:all .4s ease;pointer-events:none}
.card.product:hover img{opacity:.85}
.card.product:hover::after{background:rgba(0,0,0,.45);opacity:1}

/* ================= STATS ================= */
.stat-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.stat{display:flex;flex-direction:column;align-items:flex-start;gap:6px;padding:20px;border:none;border-radius:16px;background:#fff;box-shadow:0 3px 10px rgba(0,0,0,.1);transition:all .3s ease}
.stat:hover{transform:translateY(-4px);background:#f8f8f8;box-shadow:0 6px 16px rgba(0,0,0,.15)}
.stat .num{font-size:32px;font-weight:700;color:#1e3a8a}
.stat .label{font-size:13px;color:#6b7280;text-transform:uppercase;letter-spacing:.6px}



/* ================= LIGHTBOX ================= */
.lightbox{display:none;position:fixed;inset:0;background:rgba(0,0,0,.8);justify-content:center;align-items:center;z-index:9999;backdrop-filter:blur(4px)}
.lightbox img{max-width:90%;max-height:85%;border-radius:12px;box-shadow:0 10px 40px rgba(0,0,0,.4);object-fit:contain}
.lightbox .close{position:absolute;top:20px;right:30px;color:#fff;font-size:40px;cursor:pointer;transition:.2s}
.lightbox .close:hover{color:var(--accent-2)}
.lightbox.show{display:flex !important}

/* ================= DARK MODE ================= */
body.dark{
  --bg:#0f0f0f;--surface:#1a1a1a;--text:#f5f5f5;--muted:#a0a0a0;
  --accent:#2563eb;--accent-2:#facc15;--card:#161616;
  --border:#2a2a2a;--shadow:0 10px 30px rgba(0,0,0,.5);
}
body.dark .site-header{background:rgba(20,20,20,.9);border-bottom:1px solid var(--border)}
body.dark .card{background:var(--card);border-color:var(--border)}
body.dark .card.product{background:#1a1a1a}
body.dark .btn.ghost{background:var(--surface);color:var(--text);border-color:var(--border)}
body.dark .stat{background:#1c1c1c;color:var(--text);border:1px solid #333}
body.dark .stat .num{color:#60a5fa}
body.dark .stat .label{color:#ccc}

/* ================= RESPONSIVE ================= */
@media (max-width:1024px){
  .hero-text h1{font-size:40px}
  .grid-2{grid-template-columns:1fr}
  .cards{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .nav-toggle{display:flex}
  .nav-menu{position:absolute;top:64px;right:20px;background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow);padding:10px 12px;display:none;flex-direction:column;gap:10px;min-width:180px}
  .nav-menu.open{display:flex}
  .hero-text h1{font-size:32px}
  .hero-text p{font-size:15px}
  .cards{grid-template-columns:1fr}
}

/* ================= FOOTER & BUTTONS ================= */
.hero-text a { text-decoration: none !important; }

.btn {
  display:inline-flex; align-items:center; justify-content:center;
  height:44px; padding:0 18px; border-radius:12px;
  border:1px solid var(--border); font-weight:600; cursor:pointer;
  transition:all .2s ease; text-decoration:none;
}

.btn.primary { background:var(--accent); color:#fff; border-color:transparent; }
.btn.primary:hover { transform:translateY(-2px); box-shadow:var(--shadow); }

.hero-slider .btn.ghost {
  background:transparent; color:#fff; border:1px solid rgba(255,255,255,.6);
}
.hero-slider .btn.ghost:hover {
  border-color:#fff; background:rgba(255,255,255,.08);
}
.hero-buttons { display:flex; gap:14px; justify-content:center; }

/* ================= FOOTER ================= */
.site-footer {
  border-top:1px solid var(--border);
  background:var(--surface);
  text-align:center;
  padding:18px 0;
}
.site-footer p { margin:0; font-weight:600; color:var(--text); }

/* ================= GOOGLE MAPS ================= */
.map-container {
  border-radius:16px;
  overflow:hidden;
  box-shadow:0 6px 20px rgba(0,0,0,0.1);
  height:360px; width:100%;
}
.map-container iframe {
  width:100%; height:100%; border:none;
  filter:brightness(0.95);
  transition:filter 0.3s ease;
}
.map-container iframe:hover { filter:brightness(1); }
body.dark .map-container iframe {
  filter:invert(90%) hue-rotate(180deg) brightness(0.9);
}

/* ================= TEMA TOGGLE SWITCH ================= */
.theme-toggle { background:none; border:none; cursor:pointer; display:flex; align-items:center; justify-content:center; padding:0; }
.toggle-track { width:48px; height:26px; background:#ccc; border-radius:50px; position:relative; transition:background 0.3s ease; }
.toggle-thumb { width:20px; height:20px; background:#fff; border-radius:50%; position:absolute; top:3px; left:3px; transition:all 0.3s ease; box-shadow:0 2px 4px rgba(0,0,0,0.2); }
body.dark .toggle-track { background:#2563eb; }
body.dark .toggle-thumb { left:25px; background:#facc15; box-shadow:0 0 8px rgba(250,204,21,0.6); }
.theme-toggle:hover .toggle-thumb { transform:scale(1.1); }

/* ================= SLIDER BUTTONS ================= */
.slider-btn {
  position:absolute; top:50%; transform:translateY(-50%);
  background:rgba(255,255,255,0.25);
  color:#fff; border:none;
  font-size:38px; width:50px; height:50px;
  border-radius:50%; cursor:pointer;
  z-index:5; backdrop-filter:blur(6px);
  transition:all 0.3s ease;
}
.slider-btn:hover { background:rgba(255,255,255,0.5); transform:translateY(-50%) scale(1.1); }
.slider-btn.prev { left:25px; }
.slider-btn.next { right:25px; }

@media (max-width:768px) {
  .slider-btn { width:40px; height:40px; font-size:28px; }
}

/* ================= İLETİŞİM AKSİYONLARI ================= */
.contact-actions {
  margin-top:25px;
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:16px;
  opacity:0;
  transform:translateY(20px);
  animation:fadeIn 1s ease forwards;
}
.btn.whatsapp {
  background:#25d366;
  color:white;
  font-weight:600;
  border:none;
  border-radius:10px;
  padding:12px 22px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  transition:transform 0.25s ease, box-shadow 0.25s ease;
  font-size:16px;
}
.btn.whatsapp:hover {
  transform:translateY(-2px) scale(1.03);
  box-shadow:0 8px 16px rgba(0,0,0,0.2);
}
.social-links { display:flex; align-items:center; gap:18px; }
.social-links a { color:var(--text); transition:color 0.3s ease, transform 0.2s ease; }
.social-links a:hover { color:var(--accent); transform:scale(1.15); }
@keyframes fadeIn { to { opacity:1; transform:translateY(0); } }
body.dark .btn.whatsapp { background:#128c7e; }
body.dark .social-links a { color:#e5e5e5; }
body.dark .social-links a:hover { color:#60a5fa; }

#hakkimizda .container.grid-2 > div:last-child {
  display: grid;
  place-items: center; /* hem yatay hem dikey ortalama */
}

#hakkimizda .container.grid-2 > div:last-child img {
  max-width: 100%;
  height: auto;
  border-radius: 8px; /* istersen köşe yumuşatma */
}

/* ⬅︎ 2 sütunlu görünümde (tablet civarı) tek kalan son kartı ortala */
@media (min-width: 640px) and (max-width: 1023px) {
  #urunler .container .cards > .card.product:last-child:nth-child(2n+1) {
    grid-column: 1 / -1;        /* tüm satırı kapla */
    justify-self: center;       /* ortala */
  }
}

/* ⬅︎ 3 sütunlu düzen (masaüstü tipik) */
@media (min-width: 1024px) and (max-width: 1279px) {
  #urunler .container .cards > .card.product:last-child:nth-child(3n+1) {
    grid-column: 2;             /* ortadaki kolona yerleştir */
    justify-self: center;       
  }
}

/* ⬅︎ 4 sütunlu düzen (geniş masaüstü) */
@media (min-width: 1280px) {
  #urunler .container .cards > .card.product:last-child:nth-child(4n+1) {
    grid-column: 2 / span 2;    /* ortadaki 2 kolonun üstüne oturt */
    justify-self: center;
  }
}