h1,
h2,
h3,
ol,
ul {
    margin: 0;
}

h1 {
    margin-bottom: 0.5rem;
}

pre code {
    display: block;
    overflow-x: scroll;
}

body {

    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
    color: #333;
}

.container {
    width: 90%;
    max-width: 500px;
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
    padding: 1rem;
    transition: all 0.3s;
    height: 100dvh;
}

.chat {
    flex-grow: 1;
    overflow-y: auto;
    margin-bottom: 20px;
    border-bottom: 2px solid #e2e2e2;
}

.message {
    display: flex;
    margin-bottom: 12px;
}

.message.user {
    justify-content: flex-end;
}

.message-bubble {
    padding: 12px 18px;
    max-width: 70%;
    border-radius: 20px;
    line-height: 1.6;
    font-size: 0.95rem;
}

.message.user .message-bubble {
    background-color: #3182ce;
    color: white;
}

.message.bot .message-bubble {
    background-color: #e2e2e2;
    color: #333;
}

input[type="text"] {
    width: calc(100% - 110px);
    padding: 12px 18px;
    border: 2px solid #e2e2e2;
    border-radius: 8px 0 0 8px;
    font-size: 1rem;
    outline: none;
}

.send-button {
    width: 110px;
    background-color: #3182ce;
    color: white;
    padding: 12px 18px;
    border: none;
    border-radius: 0 8px 8px 0;
    cursor: pointer;
    transition: background-color 0.3s;
}

.send-button:hover {
    background-color: #2c5282;
}

.footer {
    text-align: center;
    padding: 15px 0;
    font-size: 0.9rem;
    color: #666;
    position: static;
    border-top: 1px solid #e2e2e2;
    background-color: #fff;
    position: fixed;
    bottom: 0;
    width: 100%;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.fadeIn {
    animation: fadeIn 1s;
}

@media (max-width: 600px) {
    .container {
        width: 95%;
        margin: 10px auto 0;
    }

    .chat {
        height: 300px;
    }

    input[type="text"],
    .send-button {
        padding: 10px 14px;
        font-size: 0.9rem;
    }

    .footer {
        font-size: 0.8rem;
        margin-top: 30px;
    }
}

.typing-indicator {
    display: none;
    align-items: center;
    justify-content: flex-end;
    margin-top: 8px;
    width: 10px;
    height: 10px;
    background-color: #333;
    border-radius: 50%;
    margin-left: 4px;
    animation: typing 1s infinite;
}

@keyframes typing {

    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.2);
        opacity: 0.7;
    }
}