body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%) fixed;
}

#up-bar {
    width: 100%;
    z-index: 1000;
    background-color: #ffffff76;
    padding: 10px 0;
    text-align: center;
    align-items: center;
    position: fixed;
    display: flex;
    width: 100%;
    top: 0; 
    border-radius: 0 0 12px 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    border-bottom: 3px solid #2d4fe6;
}

#up-bar h1 {
    font-size: 24px;
    font-weight: 600;
    color: #2d4fe6;
    margin-right: 10px;

}

#up-bar .logo {
    margin-left: 20px;
    font-size: 28px;
    margin-right: 10px;
}

#up-bar p {
    background-color: rgb(230, 229, 229);
    border-radius: 30px;
    padding: 4px 15px;
    font-size: 16px;
    color: #666666;
    margin: 0;
}

.chat-container {
    max-width: 800px;
    margin: 100px auto 0 auto;
    padding: 20px;
}


.input-area {
    display: flex;
    gap: 10px;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    position: relative;
    bottom: auto; 
    left: auto;
    transform: none;
    width: 100%;
    max-width: none;
    margin-top: 20px;
}

.input-area textarea {
    flex: 1;
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-family: inherit;
    height: 30px;
    resize: none;
}

.input-area button {
    background: linear-gradient(135deg, #2d4fe6 0%, #1e3bd6 100%);
    color: white;
    border: none;
    padding: 10px 20px;
    font-size: 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.input-area button:hover {
    background: linear-gradient(135deg, #1e3bd6 0%, #1529b8 100%);
}

.message {
    width: fit-content;
    max-width: 80%;
    padding: 10px 14px;
    margin: 8px 20px;
    border-radius: 18px;
    line-height: 1.4;
}

.user-message {
    background: linear-gradient(135deg, #2d4fe6 0%, #1e3bd6 100%);
    color: white;
    margin-left: auto;
    border-bottom-right-radius: 4px;
}

.ai-message {
    background: white;
    color: #333;
    border: 1px solid #e1e5e9;
    margin-right: auto;
    border-bottom-left-radius: 4px;
}