body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

h1, h2 {
    color: #2c3e50;
}

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

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

input, textarea {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
}

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

button {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

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

#connectionStatus {
    margin-top: 10px;
    padding: 8px;
    border-radius: 4px;
}

.connected {
    background-color: #2ecc71;
    color: white;
}

.disconnected {
    background-color: #e74c3c;
    color: white;
}

.received-messages {
    margin-top: 20px;
}

#messagesContainer {
    border: 1px solid #ddd;
    padding: 10px;
    border-radius: 4px;
    max-height: 300px;
    overflow-y: auto;
}

.message {
    padding: 8px;
    margin-bottom: 5px;
    background-color: #f9f9f9;
    border-radius: 4px;
}

.message .topic {
    font-weight: bold;
    color: #3498db;
}

.message .time {
    font-size: 0.8em;
    color: #7f8c8d;
}

/* اضافه کردن به style.css */
input[type="password"] {
    font-family: sans-serif; /* برای مخفی کردن بهتر رمز عبور */
}

.security-warning {
    color: #e74c3c;
    font-size: 0.9em;
    margin-top: 5px;
}