@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800&display=swap');

/* ===== DEĞİŞKENLER & TASARIM SİSTEMİ ===== */
:root {
  --primary: #0891b2; /* Teal */
  --primary-dark: #0e7490;
  --secondary: #0f172a; /* Slate-900 */
  --text-main: #1f2937;
  --text-muted: #6b7280;
  --bg-main: #ffffff;
  --bg-alt: #f8fafc;
  --border-light: rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== RESET & TEMEL ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Montserrat', sans-serif;
  background: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul { list-style: none; }
button { background: none; border: none; cursor: pointer; color: inherit; font: inherit; outline: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1320px; margin: 0 auto; padding: 0 1.5rem; }

/* ===== ÜST BAR (TOPBAR) ===== */
.topbar {
  background: var(--bg-main);
  border-bottom: 1px solid var(--border-light);
  font-size: 0.8rem;
  color: var(--text-muted);
}
.topbar-inner { display: flex; justify-content: space-between; align-items: center; padding: 0.6rem 0; }
.topbar-left { display: flex; gap: 2rem; align-items: center; }
.topbar-item { display: inline-flex; align-items: center; gap: 0.4rem; transition: color 0.2s; }
.topbar-item:hover { color: var(--primary); }
.topbar-right { display: flex; gap: 1rem; align-items: center; }
.topbar-social { color: var(--text-muted); display: inline-flex; }
.topbar-social:hover { color: var(--primary); transform: translateY(-1px); }

/* ===== NAVİGASYON (NAVBAR) ===== */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}
.navbar-inner { display: flex; align-items: center; justify-content: space-between; padding: 1.25rem 0; }
.navbar-logo { display: flex; align-items: center; gap: 0.6rem; font-weight: 800; font-size: 1.4rem; color: var(--primary); }
.navbar-menu { display: flex; gap: 0.5rem; align-items: center; }
.navbar-menu > li > a,
.navbar-menu > li > button {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
  border-radius: 0.5rem;
}
.navbar-menu > li > a:hover, .navbar-menu > li > button:hover { color: var(--primary); background: rgba(8, 145, 178, 0.05); }
.navbar-menu > li > a.active { color: var(--primary); }

/* Açılır Menü (Dropdown) */
.has-dropdown { position: relative; }
.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 0.75rem;
  padding: 0.75rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}
.has-dropdown.open > .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown li a { display: block; padding: 0.6rem 1.25rem; font-size: 0.85rem; font-weight: 500; color: var(--text-main); }
.dropdown li a:hover { background: rgba(8, 145, 178, 0.05); color: var(--primary); }

/* Aksiyon Düğmeleri */
.navbar-actions { display: flex; align-items: center; gap: 1rem; }
.btn-catalog {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-light);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
}
.btn-catalog:hover { border-color: var(--primary); color: var(--primary); }
.btn-cta {
  background: var(--primary);
  color: #ffffff;
  padding: 0.6rem 1.5rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(8, 145, 178, 0.25);
}
.btn-cta:hover { background: var(--primary-dark); transform: translateY(-1px); }

/* Mobil Menü Tetikleyici */
.mobile-toggle { display: none; flex-direction: column; gap: 6px; }
.mobile-toggle span { width: 24px; height: 2px; background: var(--text-main); border-radius: 2px; transition: var(--transition); }
.mobile-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
.mobile-toggle.open span:nth-child(2) { opacity: 0; }
.mobile-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }

/* ===== HERO BÖLÜMÜ ===== */
.hero {
  padding: 12rem 0 10rem;
  background: #0f172a;
  position: relative;
  overflow: hidden;
  color: #fff;
  display: flex;
  align-items: center;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('factory_hero.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.4;
  z-index: 1;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.8) 0%, rgba(15, 23, 42, 0.4) 50%, rgba(15, 23, 42, 0.9) 100%);
  z-index: 2;
}
.hero-inner {
  position: relative;
  z-index: 5;
  display: grid;
  grid-template-columns: 1fr 1.5fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-left { display: flex; flex-direction: column; align-items: center; gap: 2rem; position: relative; }
.hero-badge-circle { position: relative; width: 180px; height: 180px; display: flex; align-items: center; justify-content: center; }
.hero-badge-ring { position: absolute; inset: 0; animation: spin 25s linear infinite; }
@keyframes spin { from { transform: rotate(0); } to { transform: rotate(360deg); } }
.badge-text { font-size: 10px; fill: var(--text-muted); letter-spacing: 0.15em; font-weight: 600; text-transform: uppercase; }
.hero-badge-icon { width: 64px; height: 64px; border-radius: 50%; background: var(--primary); display: flex; align-items: center; justify-content: center; }

.hero-center { display: flex; flex-direction: column; align-items: center; z-index: 5; }
.hero-kicker-line { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1.5rem; }
.hero-line { width: 40px; height: 1px; background: var(--primary); }
.hero-kicker { font-size: 0.85rem; font-weight: 700; color: var(--primary); letter-spacing: 0.2em; text-transform: uppercase; }
.hero-title {
  font-size: clamp(3.5rem, 8vw, 5.5rem);
  font-weight: 900;
  line-height: 1;
  color: #ffffff;
  margin-bottom: 2rem;
  letter-spacing: -0.02em;
  text-shadow: 0 10px 30px rgba(0,0,0,0.3);
}
.hero-subtitle {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.8);
  max-width: 650px;
  line-height: 1.6;
}

.hero-right { display: flex; flex-direction: column; align-items: center; gap: 3rem; }
.hero-cta-circle {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  transition: var(--transition);
  color: #fff;
}
.hero-cta-circle:hover {
  transform: scale(1.1) rotate(5deg);
  border-color: var(--primary);
  background: var(--primary);
  box-shadow: 0 0 50px rgba(8, 145, 178, 0.4);
}
.hero-cta-circle span { font-size: 0.9rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.05em; }
.hero-cta-circle svg { width: 32px; height: 32px; }

/* ===== FABRİKA GÖRSELİ ===== */
.factory-image { width: 100%; height: 500px; overflow: hidden; position: relative; }
.factory-placeholder {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-color: #eee;
}

/* ===== ORTAK BÖLÜM STİLLERİ ===== */
.section { padding: 7rem 0; }
.section-eyebrow { display: inline-flex; align-items: center; gap: 0.6rem; color: var(--primary); font-size: 0.85rem; font-weight: 700; letter-spacing: 0.15rem; text-transform: uppercase; margin-bottom: 1rem; }
.section-title { font-size: clamp(2rem, 4vw, 2.75rem); font-weight: 800; line-height: 1.2; color: var(--secondary); margin-bottom: 1.5rem; }

/* ===== ÜRÜN GRUPLARI ===== */
.section-products { background: var(--bg-alt); }
.products-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 4rem; }
.btn-explore {
  background: var(--primary);
  color: #fff;
  padding: 0.75rem 2rem;
  border-radius: 999px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}
.btn-explore:hover { background: var(--primary-dark); transform: translateX(5px); }

.products-slider { overflow: hidden; margin-bottom: 3rem; }
.products-track { display: flex; gap: 1.5rem; transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1); }
.product-card {
  min-width: calc((100% - 3rem) / 3);
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.03);
  border-radius: 2rem;
  padding: 3.5rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
}
.product-card:hover {
  transform: translateY(-15px);
  border-color: var(--primary);
  box-shadow: 0 30px 60px rgba(8, 145, 178, 0.1);
}
.product-card-top { display: flex; justify-content: space-between; align-items: flex-start; }
.product-icon { color: var(--primary); }
.product-index { font-size: 0.9rem; font-weight: 800; color: var(--border-light); }
.product-title { font-size: 1.25rem; font-weight: 800; color: var(--secondary); }
.product-desc { font-size: 0.95rem; color: var(--text-muted); line-height: 1.7; flex-grow: 1; }
.product-arrow {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  transition: var(--transition);
}
.product-card:hover .product-arrow { background: var(--primary); color: #fff; }

/* Kaydırıcı Kontrolleri */
.slider-controls { display: flex; justify-content: space-between; align-items: center; }
.dot { width: 12px; height: 12px; border-radius: 50%; background: #cbd5e1; transition: var(--transition); }
.dot.active { width: 32px; border-radius: 6px; background: var(--primary); }
.slider-arrow { width: 56px; height: 56px; border-radius: 50%; border: 1px solid var(--border-light); display: inline-flex; align-items: center; justify-content: center; transition: var(--transition); }
.slider-arrow:hover { border-color: var(--primary); color: var(--primary); background: #fff; }

/* ===== MARQUEE (KAYAN ETİKETLER) ===== */
.section-tags { background: var(--primary); padding: 1.5rem 0; overflow: hidden; }
.marquee-track { animation: marquee 40s linear infinite; }
.marquee-item { font-size: 1.1rem; font-weight: 800; color: #fff; }
.marquee-sep { color: rgba(255,255,255,0.3); margin: 0 1rem; }

/* ===== HAKKIMIZDA ===== */
.section-about { background: #fff; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr 1.2fr; gap: 4rem; align-items: center; }
.about-media { display: flex; justify-content: center; }
.about-video-thumb {
  width: 100%;
  max-width: 400px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--bg-alt);
  background-size: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 10px solid #fff;
  box-shadow: 0 20px 50px rgba(0,0,0,0.1);
}
.play-btn { width: 80px; height: 80px; background: var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 10px 20px rgba(8, 145, 178, 0.3); }
.stat-number { font-size: 5rem; font-weight: 800; color: var(--secondary); display: block; line-height: 1; }
.stat-label { font-size: 1.1rem; font-weight: 600; color: var(--primary); text-transform: uppercase; letter-spacing: 0.1em; }
.btn-explore-sm { padding: 0.6rem 1.5rem; font-size: 0.85rem; }

/* ===== BLOG & HABERLER ===== */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.blog-card {
  background: #ffffff;
  border-radius: 2.5rem;
  border: 1px solid rgba(0, 0, 0, 0.03);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
}
.blog-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.06);
  border-color: var(--primary);
}
.blog-image {
  height: 280px;
  background: #f1f5f9;
  position: relative;
  overflow: hidden;
}
.blog-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.3), transparent);
}
.blog-badge { position: absolute; top: 1.5rem; left: 1.5rem; background: var(--primary); color: #fff; padding: 0.4rem 1rem; border-radius: 999px; font-size: 0.75rem; font-weight: 700; }
.blog-body { padding: 2rem; }
.blog-meta { color: var(--primary); font-size: 0.8rem; font-weight: 700; margin-bottom: 1rem; display: flex; gap: 1rem; }
.blog-title { font-size: 1.2rem; font-weight: 800; color: var(--secondary); margin-bottom: 1rem; }
.blog-text { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 1.5rem; }
.blog-link { font-weight: 700; color: var(--secondary); display: inline-flex; align-items: center; gap: 0.5rem; border-bottom: 2px solid var(--primary); padding-bottom: 2px; }

/* ===== ALT BİLGİ (FOOTER) ===== */
.footer { background: var(--secondary); color: #fff; padding: 6rem 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.5fr; gap: 4rem; padding-bottom: 4rem; }
.footer-logo { color: #fff; margin-bottom: 2rem; font-weight: 800; font-size: 1.5rem; }
.footer-logo span { color: var(--primary); }
.footer-desc { color: #94a3b8; font-size: 0.95rem; margin-bottom: 2rem; }
.footer-socials { display: flex; gap: 1rem; }
.footer-socials a { width: 44px; height: 44px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.1); display: flex; align-items: center; justify-content: center; transition: var(--transition); }
.footer-socials a:hover { background: var(--primary); border-color: var(--primary); transform: translateY(-3px); }
.footer-heading { font-size: 1.1rem; font-weight: 700; margin-bottom: 2rem; }
.footer-links li { margin-bottom: 1rem; }
.footer-links a { color: #94a3b8; font-size: 0.9rem; }
.footer-links a:hover { color: #fff; padding-left: 5px; }
.footer-contact { display: flex; flex-direction: column; gap: 1.5rem; }
.footer-contact-item { display: flex; gap: 1rem; }
.footer-contact-icon { color: var(--primary); }
.footer-contact-item strong { display: block; font-size: 0.9rem; margin-bottom: 0.25rem; }
.footer-contact-item p { color: #94a3b8; font-size: 0.85rem; }

/* Bülten (Newsletter) */
.newsletter-form { display: flex; background: rgba(255,255,255,0.05); border-radius: 0.75rem; overflow: hidden; margin-top: 1.5rem; }
.newsletter-form input { flex: 1; background: none; border: none; padding: 1rem; color: #fff; outline: none; }
.newsletter-form button { background: var(--primary); padding: 1rem; }

.copyright { border-top: 1px solid rgba(255,255,255,0.05); padding: 2rem 0; text-align: center; color: #64748b; font-size: 0.85rem; }

/* ===== DUYARLILIK (RESPONSIVE) ===== */
@media (max-width: 1200px) {
  .hero-inner { grid-template-columns: 1fr 1.5fr; }
  .hero-right { display: none; }
  .about-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 992px) {
  .product-card { min-width: calc((100% - 1.5rem) / 2); }
  .blog-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .topbar { display: none; }
  .navbar-inner { padding: 1rem 0; }
  .mobile-toggle { display: flex; }
  .navbar-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 1.5rem;
    right: 1.5rem;
    background: #fff;
    flex-direction: column;
    padding: 2rem;
    border-radius: 1.5rem;
    box-shadow: 0 20px 50px rgba(0,0,0,0.1);
    align-items: flex-start;
  }
  .navbar-menu.open { display: flex; }
  .navbar-actions { display: none; }
  .hero { padding: 4rem 0; }
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-left { order: 2; }
  .hero-center { order: 1; }
  .product-card { min-width: 100%; }
  .about-grid { grid-template-columns: 1fr; text-align: center; }
  .blog-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}