:root {
    --primary-color: #6c5ce7;
    --secondary-color: #a29bfe;
    --accent-color: #fd79a8;
    --background-color: #f9f9f9;
    --chat-bg: #ffffff;
    --user-message: #e4f0ff;
    --ai-message: #f0f0f0;
    --text-color: #333;
    --light-text: #666;
    --border-radius: 12px;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px 0;
}

header h1 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 2.5rem;
}

header p {
    color: var(--light-text);
    font-size: 1.1rem;
}

.interaction-area {
    background-color: var(--chat-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-bottom: 30px;
}

.chat-container {
    display: flex;
    flex-direction: column;
    height: 600px;
}

.chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.message {
    display: flex;
    margin-bottom: 15px;
    animation: fadeIn 0.3s ease;
}

.message .avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-right: 10px;
    flex-shrink: 0;
}

.message.user .avatar {
    background-color: var(--primary-color);
    color: white;
}

.message.ai .avatar {
    background-color: var(--secondary-color);
    color: white;
}

.message .text {
    padding: 15px 18px;
    border-radius: var(--border-radius);
    max-width: 80%;
    line-height: 1.5;
    font-size: 16px;
}

.message .text a {
    color: var(--primary-color);
    text-decoration: underline;
    transition: var(--transition);
}

.message .text a:hover {
    color: var(--secondary-color);
}

.message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message.user .avatar {
    margin-right: 0;
    margin-left: 10px;
}

.message.user .text {
    background-color: var(--user-message);
    border-radius: var(--border-radius) 0 var(--border-radius) var(--border-radius);
}

.message.ai .text {
    background-color: var(--ai-message);
    border-radius: 0 var(--border-radius) var(--border-radius) var(--border-radius);
}

.input-area {
    display: flex;
    padding: 15px;
    background-color: #f5f5f5;
    border-top: 1px solid #eee;
    flex-wrap: wrap;
}

.keyboard-tips {
    width: 100%;
    font-size: 0.8rem;
    color: var(--light-text);
    margin: -5px 0 8px 2px;
    font-style: italic;
}

textarea {
    flex: 1;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    padding: 12px;
    font-family: inherit;
    font-size: 16px;
    resize: none;
    min-height: 60px;
    transition: var(--transition);
    margin-bottom: 2px;
}

textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(108, 92, 231, 0.2);
}

.button-group {
    display: flex;
    gap: 10px;
    margin-left: 10px;
}

button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    padding: 12px 20px;
    cursor: pointer;
    font-weight: bold;
    transition: var(--transition);
}

button:hover {
    background-color: #5a49d6;
    transform: translateY(-2px);
}

button:active {
    transform: translateY(0);
}

#evaluate-button {
    background-color: var(--accent-color);
}

#evaluate-button:hover {
    background-color: #e0638e;
    transform: translateY(-2px);
}

.analysis-section {
    background-color: var(--chat-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 30px;
    margin-top: 30px;
    transition: var(--transition);
}

.hidden {
    display: none;
    opacity: 0;
    transform: translateY(20px);
}

.visible {
    display: block;
    opacity: 1;
    transform: translateY(0);
    animation: fadeIn 0.5s ease;
}

.result-container {
    margin-top: 20px;
}

.user-type {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.user-type h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.type-description {
    background-color: #f8f8f8;
    padding: 15px;
    border-radius: var(--border-radius);
    text-align: left;
    line-height: 1.6;
}

.charts {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
}

.chart-container {
    flex: 1;
    min-width: 300px;
    background-color: white;
    border-radius: var(--border-radius);
    padding: 15px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.chart-container h4 {
    text-align: center;
    margin-bottom: 15px;
    color: var(--light-text);
}

.recommendations {
    background-color: #f0f7ff;
    padding: 20px;
    border-radius: var(--border-radius);
    margin-top: 20px;
}

.recommendations h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.recommendations ul {
    list-style: none;
}

.recommendations li {
    padding: 8px 0;
    border-bottom: 1px solid #e0e0e0;
    position: relative;
    padding-left: 25px;
}

.recommendations li:last-child {
    border-bottom: none;
}

.recommendations li::before {
    content: "✓";
    color: var(--accent-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

#start-over {
    display: block;
    margin: 30px auto 0;
    padding: 12px 25px;
}

footer {
    text-align: center;
    margin-top: 50px;
    padding: 20px 0;
    color: var(--light-text);
    font-size: 0.9rem;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .charts {
        flex-direction: column;
    }
    
    .chat-container {
        height: 500px;
    }
    
    .message .text {
        max-width: 90%;
    }
    
    .input-area {
        flex-direction: column;
    }
    
    textarea {
        margin-bottom: 10px;
        min-height: 80px;
    }
    
    .button-group {
        width: 100%;
        margin-left: 0;
    }
    
    .button-group button {
        flex: 1;
    }
}