body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background: #fafafa;
}

.container {
    display: flex;
    height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background: #fff;
    border-right: 1px solid #dbdbdb;
    display: flex;
    flex-direction: column;
    padding: 20px;
}

.sidebar h2 {
    margin-top: 0;
    font-size: 18px;
}

.roleplay-list {
    flex-grow: 1;
    overflow-y: auto;
    margin-bottom: 10px;
}

.roleplay {
    padding: 10px;
    margin-bottom: 5px;
    background: #f0f0f0;
    border-radius: 8px;
    cursor: pointer;
}

.roleplay:hover {
    background: #e0e0e0;
}

.add-btn, .logout-btn {
    margin-top: 5px;
    padding: 10px;
    border: none;
    border-radius: 8px;
    background: #3897f0;
    color: white;
    cursor: pointer;
}

.logout-btn {
    background: #ed4956;
    text-align: center;
    text-decoration: none;
}

/* Chatroom */
.chatroom {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: #fff;
}

.messages {
    padding: 20px;
    overflow-y: auto;
    flex-grow: 1;
}

.message-bubble {
    padding: 10px 15px;
    margin-bottom: 10px;
    border-radius: 20px;
    display: inline-block;
    max-width: 70%;
}

.message-user {
    background: #dcf8c6;
    align-self: flex-end;
}

.message-roleplay {
    background: #f0f0f0;
    align-self: flex-start;
}

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

.input-area input {
    flex-grow: 1;
    padding: 10px;
    border-radius: 20px;
    border: 1px solid #dbdbdb;
    margin-right: 10px;
}

.input-area button {
    padding: 10px 20px;
    border-radius: 20px;
    border: none;
    background: #3897f0;
    color: white;
    cursor: pointer;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid #dbdbdb;
        flex-direction: row;
        overflow-x: auto;
    }
    .roleplay-list {
        display: flex;
        flex-direction: row;
    }
    .roleplay {
        margin-right: 10px;
    }
    .chatroom {
        height: calc(100vh - 120px);
    }
}