:root {
    --ana-mavi: #004a99;
    --sicak-turuncu: #ff8fa3; 
    --vurgu-turuncu: #ff9f1c; 
    --acik-mavi: #f4f9ff;
    --koyu-gri: #2b2d42;
    --yazi-gri: #6c757d;
}

/* Menü kaymasını (zıplamasını) önleyen kesin çözüm */
html { 
    overflow-y: scroll; 
}

body { 
    font-family: 'Segoe UI', system-ui, sans-serif; 
    color: var(--koyu-gri); 
    background-color: #fff; 
    overflow-x: hidden; 
}

/* Navbar */
.navbar { background: #fff; padding: 15px 0; box-shadow: 0 4px 20px rgba(0,0,0,0.03); border-bottom: 3px solid var(--ana-mavi); }
.nav-link { color: var(--koyu-gri) !important; font-weight: 600; padding: 8px 15px !important; transition: 0.3s; }
.nav-link:hover, .nav-link.active { color: var(--vurgu-turuncu) !important; }
.btn-login { background-color: var(--ana-mavi); color: white !important; border-radius: 25px; padding: 10px 25px !important; transition: 0.3s; border: none; font-weight: bold; }
.btn-login:hover { background-color: var(--vurgu-turuncu); color: white !important; transform: translateY(-3px); box-shadow: 0 5px 15px rgba(255, 159, 28, 0.4); }

/* Hero Section */
.hero { background: linear-gradient(135deg, var(--acik-mavi) 0%, #ffffff 100%); padding: 80px 0; }
.hero-title { font-weight: 800; color: var(--ana-mavi); font-size: 3.5rem; line-height: 1.2; }
.hero-img { border-radius: 30px; box-shadow: 0 20px 40px rgba(0,74,153,0.15); width: 100%; border: 8px solid white; object-fit: cover; }

/* Modern Kartlar */
.modern-card { background: white; border-radius: 20px; padding: 30px; border: 1px solid #f0f0f0; transition: all 0.4s ease; height: 100%; position: relative; overflow: hidden; }
.modern-card:hover { transform: translateY(-10px); box-shadow: 0 15px 35px rgba(0,0,0,0.08); border-color: transparent; }
.icon-box { width: 60px; height: 60px; background: var(--acik-mavi); color: var(--ana-mavi); border-radius: 15px; display: flex; align-items: center; justify-content: center; font-size: 1.8rem; margin-bottom: 20px; transition: 0.3s; }
.modern-card:hover .icon-box { background: var(--vurgu-turuncu); color: white; }

/* Eğitim Görselleri & Rozetleri */
.course-img { width: 100%; height: 220px; object-fit: cover; border-radius: 15px; margin-bottom: 20px; }
.badge-cat { position: absolute; top: 15px; right: 15px; background: var(--vurgu-turuncu); color: white; padding: 6px 15px; border-radius: 20px; font-weight: 600; font-size: 0.8rem; z-index: 10;}

/* Eğitimler Sayfası Logo Kutuları */
.logo-box { height: 160px; background-color: #f8f9fa; border: 1px solid #e9ecef; border-radius: 15px; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; transition: 0.3s; }
.modern-card:hover .logo-box { background-color: #fff; border-color: var(--vurgu-turuncu); box-shadow: 0 5px 15px rgba(255, 159, 28, 0.1); }
.course-logo { height: 70px; width: auto; object-fit: contain; transition: 0.3s; }
.modern-card:hover .course-logo, .modern-card:hover .fa-icon-grow { transform: scale(1.15); }
.fa-icon-grow { transition: 0.3s; }

/* Scroll Animasyonları */
.animate-element { opacity: 0; transform: translateY(30px); transition: all 0.8s ease-out; }
.animate-element.visible { opacity: 1; transform: translateY(0); }

/* Footer */
footer { background: var(--ana-mavi); color: white; padding: 40px 0 20px; border-top: 5px solid var(--vurgu-turuncu); }

/* WhatsApp Yüzen Buton */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 20px;
    right: 20px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 35px;
    box-shadow: 2px 2px 10px rgba(0,0,0,0.3);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: transform 0.3s ease;
}
.whatsapp-float:hover {
    transform: scale(1.1);
    color: #FFF;
}