body {
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    margin: 0;
    padding: 0;
}

.login-container,
.dashboard-container,
.chat-container {
    width: 90%;
    max-width: 700px;
    margin: 40px auto;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

input,
textarea {
    width: 100%;
    padding: 12px;
    margin-top: 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 14px;
}

button {
    margin-top: 15px;
    padding: 12px 20px;
    border: none;
    background: #1d4ed8;
    color: white;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background: #2563eb;
}

.chat-box {
    height: 400px;
    overflow-y: auto;
    border: 1px solid #ddd;
    padding: 15px;
    background: #fafafa;
}

.user-message {
    background: #dbeafe;
    padding: 10px;
    margin-top: 10px;
    border-radius: 5px;
}

.ai-message {
    background: #dcfce7;
    padding: 10px;
    margin-top: 10px;
    border-radius: 5px;
}