* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    height: 100vh;
    overflow: hidden;
}

.layout {
    display: flex;
    height: 100vh;
    gap: 20px;
    padding: 20px;
}

.list {
    margin-left: 2%;
}

#leftPanel {
    flex: 1 1 0;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

#container {
    flex: 1;
    border: 1px solid #ccc;
    border-radius: 8px;
    overflow: hidden;
}

#tuningPanel {
    flex: 1;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 8px;
    background-color: #f5f5f5;
    overflow-y: scroll;
    display: flex;
    flex-direction: column;
}

#rightPanel {
    flex: 1 1 0;
    min-width: 0;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 8px;
    background-color: #f5f5f5;
    overflow-y: scroll;
    display: flex;
    flex-direction: column;
}

#rightPanelTabBar {
    display: flex;
    gap: 0;
    margin-bottom: 20px;
    border-bottom: 2px solid #ccc;
}

.tab-button {
    flex: 1;
    padding: 12px 20px;
    background-color: #e0e0e0;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.tab-button:hover {
    background-color: #d0d0d0;
}

.tab-button.active {
    background-color: #f5f5f5;
    border-bottom-color: #007bff;
    color: #007bff;
}

#rightPanelContent {
    flex: 1;
    overflow-y: auto;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

#instrumentSelect {
    padding: 10px;
    font-size: 14px;
    border: 1px solid #999;
    border-radius: 4px;
    background-color: white;
}

#playGameContent {
    flex: 1;
    flex-direction: column;
}

#gameSettingsDisplay,
#gameRunningDisplay,
#gameDoneDisplay {
    flex-direction: column;
}

#gameSettingsDisplay.show,
#gameRunningDisplay.show,
#gameDoneDisplay.show {
    display: flex;
}