body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f7f9fc;
    margin: 0;
    padding: 0;
}

.container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background-color: #2c3e50;
    color: white;
    padding: 20px;
}

.sidebar h2 {
    font-size: 20px;
    margin-bottom: 20px;
    text-align: center;
}

.sidebar ul {
    list-style: none;
    padding: 0;
}

.sidebar ul li {
    margin-bottom: 15px;
}

.sidebar ul li a {
    color: #ecf0f1;
    text-decoration: none;
    font-weight: 600;
    padding: 10px;
    display: block;
    border-radius: 5px;
    background-color: #34495e;
    transition: background-color 0.3s ease;
}

.sidebar ul li a:hover {
    background-color: #e67e22;
}

.icerik {
    flex: 1;
    padding: 30px;
    background: white;
}

h1 {
    color: #2c3e50;
    margin-bottom: 30px;
}

.form-grid {
    display: flex;
    gap: 30px;
    margin-bottom: 20px;
}

.form-box {
    flex: 1;
    background-color: #f0f4f8;
    padding: 20px;
    border-radius: 8px;
}

.form-box h2 {
    margin-bottom: 20px;
    color: #34495e;
}

label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: #34495e;
}

input, textarea {
    width: 100%;
    padding: 8px 10px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
}

textarea {
    resize: vertical;
    min-height: 100px;
}

.notlar-box {
    margin-top: 10px;
}

button {
    background-color: #2c3e50;
    color: white;
    padding: 12px 30px;
    border: none;
    border-radius: 6px;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #e67e22;
}