/* Genel Ayarlar */
body {
    font-family: 'Poppins', sans-serif;
    background-color: #f0f4f8;
    margin: 0;
    padding: 0;
    color: #333;
}

/* Sayfa Düzeni */
.wrapper {
    display: flex;
    flex-direction: column;
}

.sidebar {
    width: 100%;
    background-color: #2c3e50;
    color: white;
    padding: 15px;
    text-align: center;
}

.sidebar h2 {
    font-size: 24px;
    margin-bottom: 20px;
}

.sidebar a {
    display: block;
    padding: 15px;
    color: white;
    text-decoration: none;
    font-weight: bold;
    background-color: #34495e;
    border-radius: 5px;
    margin-bottom: 10px;
}

.sidebar a:hover {
    background-color: #1abc9c;
}

/* İçerik */
.content {
    padding: 20px;
}

/* Kategori ve Ürün Listele */
.category-list {
    margin: 20px 0;
}

.category-item {
    background-color: #ecf0f1;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.category-item button {
    padding: 10px 15px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.category-item button:hover {
    background-color: #2980b9;
}

/* Ürün Listeleme */
.product-list {
    margin-top: 20px;
    background-color: #f9f9f9;
    padding: 15px;
    border-radius: 8px;
}

.product-list h3 {
    margin-bottom: 10px;
}

.product-item {
    background-color: #ecf0f1;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 5px;
}

/* Mobil Uyum */
@media (max-width: 768px) {
    .sidebar {
        padding: 10px;
    }

    .content {
        padding: 15px;
    }

    .category-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .category-item button {
        margin-top: 10px;
        width: 100%;
    }
}

/* Giriş Sayfası */
.content {
    max-width: 400px;
    margin: 100px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 28px;
    color: #2c3e50;
}

form {
    display: flex;
    flex-direction: column;
}

label {
    font-size: 14px;
    color: #34495e;
    margin-bottom: 5px;
}

input[type="text"], input[type="password"] {
    padding: 12px;
    margin-bottom: 20px;
    border: 1px solid #bdc3c7;
    border-radius: 5px;
    font-size: 16px;
    background-color: #ecf0f1;
    transition: border-color 0.3s ease;
}

input[type="text"]:focus, input[type="password"]:focus {
    border-color: #3498db;
    outline: none;
}

input[type="submit"] {
    background-color: #1abc9c;
    color: white;
    padding: 12px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

input[type="submit"]:hover {
    background-color: #16a085;
}

input[type="submit"]:active {
    background-color: #148f77;
}

@media (max-width: 768px) {
    .content {
        width: 90%;
        margin-top: 50px;
    }

    input[type="submit"] {
        font-size: 14px;
        padding: 10px;
    }
}