* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', sans-serif; line-height: 1.8; color: #333; scroll-behavior: smooth; background: #fff; }
.container { max-width: 1100px; margin: auto; padding: 0 20px; }
.section { padding: 100px 0; }
.bg-light { background: #f4f7fa; }
.section-title { text-align: center; margin-bottom: 50px; font-size: 2.2rem; font-weight: 700; color: #002e87; }

/* Navigasyon */
nav { background: #fff; height: 80px; display: flex; align-items: center; position: fixed; width: 100%; top: 0; z-index: 1000; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
.nav-container { display: flex; justify-content: space-between; align-items: center; width: 100%; }
.logo { font-weight: 700; font-size: 1.5rem; color: #002e87; }
.nav-links { display: flex; list-style: none; }
.nav-links li { margin-left: 25px; }
.nav-links a { text-decoration: none; color: #444; font-size: 0.9rem; font-weight: 600; }
.lang-switch a { color: #d32f2f; }

/* Hero */
.hero { background: linear-gradient(rgba(0,46,135,0.85), rgba(0,46,135,0.85)), url('https://images.unsplash.com/photo-1450101499163-c8848c66ca85?auto=format&fit=crop&w=1350&q=80'); 
        height: 90vh; background-size: cover; background-position: center; display: flex; align-items: center; color: #fff; text-align: center; margin-top: 80px; }
.hero h1 { font-size: 3.5rem; margin-bottom: 20px; }
.hero-features { margin: 25px 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 15px; font-size: 0.9rem; }
.hero-features span { background: rgba(255,255,255,0.1); padding: 5px 15px; border-radius: 20px; }
.btn { background: #fff; color: #002e87; padding: 15px 40px; text-decoration: none; border-radius: 5px; font-weight: 700; display: inline-block; }

/* İçerik Alanları */
.content-block h3 { color: #002e87; margin-bottom: 20px; font-size: 1.6rem; }
.service-detail h4 { margin-top: 25px; color: #333; font-size: 1.1rem; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card { background: #fff; padding: 20px; border-radius: 5px; border-left: 4px solid #002e87; box-shadow: 0 2px 5px rgba(0,0,0,0.05); font-size: 0.9rem; }

.product-box { background: #002e87; color: #fff; padding: 40px; border-radius: 8px; }
.doc-item img { width: 100%; height: auto; border: 1px solid #ddd; padding: 5px; background: #fff; transition: 0.3s; }
.doc-item img:hover { transform: scale(1.05); }

.footer { background: #111; color: #ccc; padding: 60px 0; }
.footer h3 { color: #fff; margin-bottom: 20px; }

@media (max-width: 768px) {
    .grid, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .hero h1 { font-size: 2.2rem; }
    .nav-links { display: none; }
}