body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 20px;
}

#chat-container {
    background-color: white;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 640px;
    margin: 40px auto 80px; /* Povećajte marginu odozdo */
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#chat-box {
    height: 35em;
    overflow-y: auto;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex-grow: 1; /* Omogućava rast u visini */
}

#user-input {
    border: none;
    padding: 15px;
    font-size: 16px;
    outline: none;
    flex-grow: 1;
}

button {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 15px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    cursor: pointer;
    border-left: 1px solid #fff;
}

.message {
    padding: 10px 15px;
    border-radius: 18px;
    max-width: 80%;
    word-wrap: break-word;
}

.user {
    align-self: flex-end;
    background-color: #007bff;
    color: white;
}

.assistant {
    align-self: flex-start;
    background-color: #e9ecef;
    color: black;
}

input[type="text"], button {
    flex-shrink: 0;
}