body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #0f0f0f;
    color: white;
}

#app {
    display: flex;
    height: 100vh;
}
#sidebar {
    width: 240px;
    background: #141414;
    padding: 10px;
    overflow-y: auto;
    border-right: 1px solid #222;
}

#sidebar button {
    width: 100%;
    padding: 10px;
    background: #2d6cdf;
    border: none;
    color: white;
    cursor: pointer;
    margin-bottom: 10px;
}

.session-item {
    padding: 8px;
    margin: 5px 0;
    background: #1f1f1f;
    cursor: pointer;
    border-radius: 5px;
}

.session-item:hover {
    background: #2a2a2a;
}
#main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

#chat-box {
    flex: 1;
    padding: 15px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.msg {
    padding: 10px;
    margin: 6px 0;
    border-radius: 8px;
    max-width: 70%;
    word-wrap: break-word;
}

.msg.user {
    background: #2d6cdf;
    align-self: flex-end;
}

.msg.ai {
    background: #333;
    align-self: flex-start;
}

#input-area {
    display: flex;
    padding: 10px;
    border-top: 1px solid #222;
}

#user-input {
    flex: 1;
    padding: 10px;
    background: #1a1a1a;
    border: none;
    color: white;
}

#send-btn {
    padding: 10px 15px;
    background: #2d6cdf;
    border: none;
    color: white;
    cursor: pointer;
}