/* GENEL */
body {
    font-family: 'Segoe UI', Arial;
    margin: 0;
    background: #eef3f8;
}

/* HEADER */
header {
    background: linear-gradient(90deg, #0b3c6f, #1e6bb8);
    color: white;
    padding: 15px 20px;
}

/* LOGO + BAŞLIK */
.header-box {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
}

/* MENÜ */
nav {
    margin-top: 10px;
}

nav a {
    color: white;
    margin-right: 15px;
    text-decoration: none;
    font-weight: bold;
}

/* HERO (ANASAYFA) */
.hero {
    text-align: center;
    padding: 50px;
    background: #dce8f5;
}

.hero img {
    width: 300px;
    margin: 10px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}

/* BÖLÜM */
.section {
    padding: 40px;
    text-align: center;
}

/* GRID (YAN YANA SORUNUN ÇÖZÜMÜ) */
.grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

/* KART */
.card {
    background: white;
    padding: 20px;
    margin: 15px;
    width: 250px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: 0.3s;
}

.card:hover {
    transform: scale(1.05);
}

/* BUTON */
.button {
    background: #1e6bb8;
    color: white;
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none;
    display: inline-block;
    margin-top: 15px;
}

/* WHATSAPP FLOAT */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #25d366;
    color: white;
    padding: 15px;
    border-radius: 50%;
    text-decoration: none;
    font-size: 20px;
}

/* FOOTER */
footer {
    background: #0b3c6f;
    color: white;
    text-align: center;
    padding: 20px;
}

/* 📱 MOBİL UYUM */
@media (max-width: 768px) {
    .hero img {
        width: 90%;
    }

    .card {
        width: 90%;
    }

    .header-box {
        flex-direction: column;
        text-align: center;
    }
}