body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: flex-start; /* Üstten başlasın */
    min-height: 100vh;
}

.container {
    width: 90%;
    max-width: 960px;
    margin: 20px auto;
    background: #fff;
    padding: 30px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

.logo {
    max-width: 150px;
    margin-bottom: 20px;
}

h1, h2, h3 {
    color: #007bff; /* Sanalfest mavisi tonu */
    text-align: center;
    margin-bottom: 20px;
}

.content p, .content ul {
    margin-bottom: 15px;
    text-align: justify;
}

.content ul {
    list-style: disc inside;
    padding-left: 20px;
}

.content ul li strong {
    color: #0056b3;
}

.content a {
    color: #007bff;
    text-decoration: none;
}

.content a:hover {
    text-decoration: underline;
}

.form-section {
    background-color: #e9f5ff; /* Açık mavi arka plan */
    padding: 25px;
    border-radius: 8px;
    margin-top: 30px;
    text-align: center;
}

.form-group {
    margin-bottom: 15px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-group input[type="text"],
.form-group input[type="tel"] {
    width: calc(100% - 20px);
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
}

.form-group button {
    background-color: #28a745; /* Yeşil tonu */
    color: white;
    padding: 12px 25px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 18px;
    transition: background-color 0.3s ease;
}

.form-group button:hover {
    background-color: #218838;
}

.form-message {
    margin-top: 20px;
    padding: 10px;
    border-radius: 4px;
    font-weight: bold;
    display: none; /* Başlangıçta gizli */
}

.form-message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

footer {
    text-align: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    color: #777;
    font-size: 0.9em;
}

/* Responsive Tasarım */
@media (max-width: 768px) {
    .container {
        width: 95%;
        padding: 20px;
    }
    h1 {
        font-size: 1.8em;
    }
    h2 {
        font-size: 1.5em;
    }
}