header {
        background: #272640;
        color: white;
        text-align: center;
        padding: 15px;
        box-shadow: 0 5px 5px rgba(0, 0, 0, 0.1);
    }

    .chat-container {
        width: 80%;
        max-width: 700px;
        margin: 30px auto;
        border: 2px solid #ccc;
        border-radius: 15px;
        background: #f3f7fb;
        display: flex;
        border: none;
        flex-direction: column;
        height: 550px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }

    .chat-box {
        flex: 1;
        padding: 20px;
        overflow-y: auto;
        border-bottom: 1px solid #ddd;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .chat-input {
        display: flex;
        gap: 10px;
        padding: 15px;
        background: #fff;
        border-radius: 0 0 15px 15px;
    }

    .chat-input input {
        flex: 1;
        padding: 12px;
        border: 1px solid #ccc;
        border-radius: 10px;
        font-size: 15px;
    }


    .message {
        max-width: 75%;
        padding: 10px 14px;
        border-radius: 10px;
        line-height: 1.4;
        word-wrap: break-word;
    }

    .message.user {
        background-color: #d1e7dd;
        align-self: flex-end;
        border-bottom-right-radius: 2px;
    }

    .message.bot {
        background-color: #fff;
        align-self: flex-start;
        border-bottom-left-radius: 2px;
    }

    .chat-input button {
        padding: 12px 20px;
        background: #4a90e2;
        border: none;
        border-radius: 10px;
        color: white;
        font-weight: bold;
        cursor: pointer;
        transition: 0.3s;
    }

    .chat-input button:hover {
        background: #3a7dd4;
    }

    nav ul {
        list-style-type: none;
    }

    .input-area {
        display: flex;
        border-top: 1px solid #ccc;
    }

    input {
        flex: 1;
        padding: 10px;
        border: none;
        outline: none;
    }

    button {
        padding: 10px;
        background: #007bff;
        border: none;
        color: white;
        cursor: pointer;
    }

    a {
        text-decoration: none;
        color: inherit;
    }

    img {
        max-width: 100%;
        height: auto;
        border-radius: 5px;
        margin: 10px 0;
    }

    #helpBtn {
        position: fixed;
        bottom: 15px;
        right: 15px;
        background-color: rgb(24, 23, 83);
        color: wheat;
        border: none;
        padding: 12px 18px;
        border-radius: 8px;
        cursor: pointer;
        font-size: 14px;
        box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.2);
    }

    #helpBtn:hover {
        background-color: #000611;
        color: #ffffff;
    }

    #helpBox {
        display: none;
        position: fixed;
        bottom: 60px;
        right: 15px;
        background: white;
        border: 1px solid #ccc;
        border-radius: 10px;
        padding: 15px;
        width: 250px;
        box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.3);
        font-size: 14px;
    }

    #helpBox h3 {
        margin-top: 0;
        font-size: 16px;
        color: #333;
    }

    #closeHelp {
        display: block;
        margin-top: 10px;
        background: #f44336;
        color: white;
        border: none;
        padding: 6px 12px;
        border-radius: 6px;
        cursor: pointer;
        font-size: 13px;
    }

    #closeHelp:hover {
        background: #d32f2f;
    }

    footer {
        background: #411d1d;
        color: #fff;
        text-align: center;
        padding: 15px;
        margin-top: 232px;
    }

    .logo {
        max-width: 100px;
        margin: 10px 0;
    }

    @media (max-width: 768px) {
  .chat-container {
    width: 95%;
    height: 500px;
    border-radius: 10px;
  }

  .chat-input {
    flex-direction: column;
    gap: 8px;
  }

  .chat-input input {
    font-size: 14px;
    padding: 10px;
  }

  .chat-input button {
    width: 100%;
    padding: 12px;
    font-size: 15px;
  }
}

@media (max-width: 480px) {
  .chat-container {
    width: 100%;
    height: 480px;
    border-radius: 10px;
    border-radius: 0;
  }

  .chat-box {
    padding: 15px;
  }

  .message {
    font-size: 14px;
  }

  .chat-input {
    padding: 10px;
  }

  .chat-input input {
    font-size: 13px;
  }
}