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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    min-height: 100vh;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.header {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: 25px;
    text-align: center;
    border-radius: 15px;
    margin-bottom: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.header h1 {
    font-size: 28px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.header .subtitle {
    font-size: 16px;
    opacity: 0.9;
    font-weight: 300;
}

.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #27ae60;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.main-content {
    display: flex;
    gap: 20px;
    flex: 1;
}

.chat-section {
    flex: 2;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-header {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    padding: 20px;
    text-align: center;
}

.chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    max-height: 600px;
    background: #f8f9fa;
}

.message {
    margin-bottom: 20px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.message.user {
    justify-content: flex-end;
}

.message-content {
    max-width: 80%;
    padding: 15px 20px;
    border-radius: 18px;
    word-wrap: break-word;
    line-height: 1.5;
}

.message.user .message-content {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    border-bottom-right-radius: 5px;
}

.message.assistant .message-content {
    background: white;
    border: 2px solid #e1e5e9;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border-bottom-left-radius: 5px;
}

.response-content {
    font-family: 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #2c3e50;
    white-space: pre-wrap;
}

.input-section {
    padding: 20px;
    background: white;
    border-top: 2px solid #e1e5e9;
}

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

.input-form input {
    flex: 1;
    padding: 15px 20px;
    border: 2px solid #e1e5e9;
    border-radius: 25px;
    font-size: 16px;
    outline: none;
    transition: border-color 0.3s ease;
}

.input-form input:focus {
    border-color: #3498db;
}

.input-form button {
    padding: 15px 30px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.input-form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
}

.input-form button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.sidebar {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sidebar-panel {
    background: white;
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.panel-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #2c3e50;
    display: flex;
    align-items: center;
    gap: 8px;
}

.examples-grid {
    display: grid;
    gap: 10px;
}

.example-question {
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    padding: 12px 15px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
    text-align: left;
}

.example-question:hover {
    background: #e3f2fd;
    border-color: #3498db;
    transform: translateX(5px);
}

.loading {
    display: none;
    text-align: center;
    padding: 20px;
    color: #3498db;
}

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(52, 152, 219, 0.3);
    border-radius: 50%;
    border-top-color: #3498db;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.info-panel {
    background: #e8f4fd;
    border-left: 4px solid #3498db;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 15px;
}

.info-panel h3 {
    color: #2980b9;
    margin-bottom: 8px;
}

.info-panel p {
    color: #34495e;
    font-size: 14px;
    line-height: 1.4;
}

@media (max-width: 768px) {
    .main-content {
        flex-direction: column;
    }
    
    .container {
        padding: 10px;
    }
}