.settings-panel-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1100; /* Above splash screen if necessary */
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.2s;
}

.settings-panel-backdrop.visible {
    visibility: visible;
    opacity: 1;
}

.settings-panel-modal {
    background-color: #2b2b2b;
    width: 800px;
    height: 500px;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    color: #cecece;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    border: 1px solid #444;
}

.settings-header {
    background-color: #1d1d1d;
    padding: 10px 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #444;
}

.settings-header span {
    font-size: 14px;
    font-weight: 500;
}

.settings-close {
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
}

.settings-close:hover {
    color: #fff;
}

.settings-body {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.settings-sidebar {
    width: 150px;
    background-color: #232323;
    border-right: 1px solid #444;
    padding: 10px 0;
    overflow-y: auto;
}

.settings-sidebar ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.settings-sidebar li {
    padding: 8px 15px;
    cursor: pointer;
    font-size: 13px;
    color: #cecece;
}

.settings-sidebar li:hover {
    background-color: #333;
    color: #fff;
}

.settings-sidebar li.active {
    background-color: #4772b3;
    color: #fff;
}

.settings-content {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    background-color: #2b2b2b;
}

.settings-content h3 {
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 16px;
    font-weight: normal;
    color: #fff;
    border-bottom: 1px solid #444;
    padding-bottom: 10px;
}

.setting-group {
    margin-bottom: 15px;
}

.setting-group label {
    display: block;
    margin-bottom: 5px;
    font-size: 12px;
    color: #aaa;
}

.setting-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: #181818;
    padding: 8px 10px;
    border-radius: 4px;
    margin-bottom: 5px;
}

.setting-item span {
    font-size: 13px;
}

.setting-item input[type="number"], 
.setting-item input[type="text"] {
    background-color: #333;
    border: 1px solid #444;
    color: #fff;
    padding: 4px;
    border-radius: 3px;
    width: 60px;
    text-align: right;
}

.settings-footer {
    padding: 10px 20px;
    background-color: #232323;
    border-top: 1px solid #333;
    display: flex;
    gap: 10px;
}

.settings-btn {
    background-color: #333;
    border: 1px solid #444;
    color: #cecece;
    padding: 5px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
}

.settings-btn:hover {
    background-color: #444;
    color: #fff;
}