.appearance-settings {
    position: relative;
    flex: 0 0 auto;
    width: 36px;
    height: 36px;
}

.appearance-settings > .appearance-settings-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: var(--r);
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
    padding: 0;
}

.appearance-settings > .appearance-settings-toggle:hover,
.appearance-settings > .appearance-settings-toggle[aria-expanded="true"] { background: var(--surface-sunken); }
.appearance-settings-panel[hidden] { display: none; }

.appearance-settings-panel {
    position: absolute;
    z-index: 100;
    top: 44px;
    right: 0;
    bottom: auto;
    left: auto;
    margin: 0;
    transform: none;
    overflow-y: auto;
    max-height: calc(100dvh - 72px);
    width: 250px;
    max-width: calc(100vw - 24px);
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    background: var(--surface);
    color: var(--text);
    box-shadow: var(--shadow-pop);
}

.appearance-settings-panel h2 { margin: 0 0 16px; font-size: var(--fs-lg); }
.appearance-settings-panel fieldset { margin: 0; padding: 0; border: 0; }
.appearance-settings-panel legend { margin-bottom: 8px; padding: 0; color: var(--text-muted); font-weight: 700; }
.appearance-settings-panel label {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 36px;
    padding: 4px 8px;
    border-radius: var(--r);
    cursor: pointer;
}
.appearance-settings-panel label:hover,
.appearance-settings-panel label:has(input:checked) { background: var(--surface-sunken); }
.appearance-settings-panel input { margin: 0; accent-color: var(--link); }
.appearance-settings-panel p { margin: 12px 0; color: var(--text-muted); font-size: var(--fs-sm); }
.appearance-settings-panel form { padding-top: 12px; border-top: 1px solid var(--border); }
.appearance-settings-panel form button { width: 100%; }