body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background: #f7f7f7;
    color: #333;
}

/* HEADER */
header {
    background: #fff;
    text-align: center;
    padding: 15px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
header img {
    height: 80px;
}

/* NAVBAR */
.navbar {
    background: #005baa;
}
.navbar ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}
.navbar a {
    color: #fff;
    text-decoration: none;
    padding: 12px 18px;
    display: block;
    transition: background 0.3s;
}
.navbar a:hover, .navbar a.active {
    background: #0078d4;
}

/* SLIDER */
.slider {
    position: relative;
    width: 100%;
    overflow: hidden;
}
.slider img {
    width: 100%;
    height: 450px;
    object-fit: cover;
    display: none;
}
.slider img.active {
    display: block;
}

/* CONTAINER */
.container {
    max-width: 1100px;
    margin: 40px auto;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

/* BAŞLIKLAR */
h1, h2 {
    color: #005baa;
    text-align: center;
}

/* GRID */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}
.product, .category-card {
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
    background: #fff;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}
.product:hover, .category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}
.product img, .category-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}
.product h3, .category-card h3 {
    background: #f1f1f1;
    padding: 10px;
    font-size: 16px;
}

/* İLETİŞİM */
.contact-info {
    line-height: 1.8;
    font-size: 16px;
}
.contact-info strong { color: #005baa; }

/* FOOTER */
footer {
    text-align: center;
    padding: 20px;
    background: #f1f1f1;
    font-size: 14px;
    color: #555;
    margin-top: 40px;
}

/* MOBİL */
@media (max-width: 600px) {
    header img { height: 60px; }
    .navbar a { padding: 10px 14px; font-size: 14px; }
    .slider img { height: 250px; }
}