body,
html {
    margin: 0;
    padding: 0;
    font-family: sans-serif;
    height: 100%;
    background: #121212;
    color: #fff;
}

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

.sidebar {
    width: 250px;
    background: #1e1e1e;
    padding: 20px;
    border-right: 1px solid #333;
    overflow-y: auto;
}

.sidebar button {
    width: 100%;
    padding: 10px;
    margin-bottom: 20px;
    background: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 4px;
    font-weight: bold;
}

.sidebar button:hover {
    background: #45a049;
}

.playthrough-item {
    padding: 10px;
    background: #2a2a2a;
    margin-bottom: 10px;
    cursor: pointer;
    border-radius: 4px;
}

.playthrough-item:hover {
    background: #3a3a3a;
}

.playthrough-item.active {
    border-left: 4px solid #4CAF50;
    background: #333;
}

.game-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.chat-history {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 20px;
}

.message {
    padding: 15px;
    border-radius: 8px;
    line-height: 1.5;
}

.message.ai {
    background: #222;
    border: 1px solid #333;
}

.message.user {
    background: #1e3a2f;
    align-self: flex-end;
    width: fit-content;
    max-width: 80%;
}

.choices-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.choice-btn {
    padding: 15px;
    background: #333;
    color: white;
    border: 1px solid #555;
    border-radius: 4px;
    cursor: pointer;
    text-align: left;
    font-size: 16px;
}

.choice-btn:hover {
    background: #4CAF50;
    border-color: #4CAF50;
}