* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
    direction: rtl;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.header h1 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.progress {
    display: flex;
    align-items: center;
    gap: 10px;
}

.progress-bar {
    flex-grow: 1;
    height: 10px;
    background: #ecf0f1;
    border-radius: 5px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: #3498db;
    width: 0%;
    transition: width 0.3s ease;
}

.chat-container {
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    overflow: hidden;
}

.chat-messages {
    height: 400px;
    overflow-y: auto;
    padding: 20px;
}

.message {
    margin-bottom: 15px;
    padding: 10px 15px;
    border-radius: 10px;
    max-width: 80%;
}

.user-message {
    background: #3498db;
    color: white;
    margin-left: auto;
}

.ai-message {
    background: #ecf0f1;
    color: #333;
}

.input-area {
    padding: 20px;
    border-top: 1px solid #ecf0f1;
}

.current-question {
    font-weight: bold;
    margin-bottom: 10px;
    color: #2c3e50;
}

.input-group {
    display: flex;
    gap: 10px;
}

.input-group input {
    flex-grow: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
}

.input-group button {
    padding: 10px 20px;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}

.input-group button:hover {
    background: #2980b9;
}

.completion-message {
    text-align: center;
    padding: 40px 20px;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background: #27ae60;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 10px;
}

.btn:hover {
    background: #219a52;
}