body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    width: 100%;
    max-width: 700px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
    height: 90vh;
}

header {
    padding: 20px;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

h1 {
    margin: 0;
    font-size: 1.5em;
    color: #333;
}

.kb-button {
    text-decoration: none;
    background-color: #007bff;
    color: white;
    padding: 8px 12px;
    border-radius: 5px;
    font-size: 0.9em;
}

.chat-window {
    flex-grow: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.message {
    max-width: 80%;
    margin-bottom: 15px;
    padding: 10px 15px;
    border-radius: 18px;
    line-height: 1.4;
}

.message.user {
    background-color: #007bff;
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.message.assessor {
    background-color: #e9ecef;
    color: #333;
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

.chat-input-form {
    display: flex;
    padding: 20px;
    border-top: 1px solid #eee;
}

#user-input {
    flex-grow: 1;
    border: 1px solid #ccc;
    border-radius: 20px;
    padding: 10px 15px;
    font-size: 1em;
}

#user-input:focus {
    outline: none;
    border-color: #007bff;
}

.chat-input-form button {
    margin-left: 10px;
    padding: 10px 20px;
    border: none;
    background-color: #007bff;
    color: white;
    border-radius: 20px;
    cursor: pointer;
    font-size: 1em;
}

/* Estilos para a página Knowledge Base */
.kb-page {
    height: auto;
    min-height: 60vh;
}
.upload-section, .files-section {
    padding: 20px;
}
.flashes {
    list-style-type: none;
    padding: 0;
    margin-top: 10px;
}
.flashes li {
    background-color: #d4edda;
    color: #155724;
    padding: 10px;
    border-radius: 5px;
}