body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: #F3F4F6;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.chat-container {
    width: 100%;
    max-width: 600px;
    height: 100%;
    max-height: 800px;
    display: flex;
    flex-direction: column;
    background-color: #FFFFFF;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.chat-header {
    background: linear-gradient(90deg, #4F46E5, #6D28D9);
    color: white;
    padding: 16px;
    text-align: center;
    font-size: 1.25rem;
}

.chat-box {
    flex-grow: 1;
    padding: 16px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chat-message {
    padding: 10px 16px;
    border-radius: 18px;
    max-width: 75%;
    word-wrap: break-word;
}

.user-message {
    background-color: #4F46E5;
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.ai-message {
    background-color: #E5E7EB;
    color: #1F2937;
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

.chat-footer {
    padding: 16px;
    border-top: 1px solid #E5E7EB;
}

#chat-form {
    display: flex;
    gap: 10px;
}

#message-input {
    flex-grow: 1;
    border: 1px solid #D1D5DB;
    padding: 12px;
    border-radius: 8px;
    font-size: 1rem;
}

#chat-form button {
    background-color: #4F46E5;
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.2s;
}

#chat-form button:hover {
    background-color: #4338CA;
}