/* ── Theme Toggle Button ── */
button.xfact-theme-toggle {
    position: relative;
    display: inline-flex;
    align-items: center;
    width: 3rem;
    height: 1.75rem;
    padding: 0;
    border: none;
    border-radius: 9999px;
    background: transparent;
    cursor: pointer;
}

button.xfact-theme-toggle:focus-visible {
    outline: 2px solid var(--xfact-semantic-primary);
    outline-offset: 2px;
}

button.xfact-theme-toggle--icon-only {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 50%;
    color: var(--xfact-semantic-text-secondary);
    background: rgb(0 0 0 / 5%);
    backdrop-filter: var(--xfact-glass-blur);
    border: 1px solid rgb(0 0 0 / 5%);
}

.xfact-dark-section button.xfact-theme-toggle--icon-only {
    background: var(--xfact-glass-bg);
    border-color: var(--xfact-glass-border);
    color: rgb(255 255 255 / 80%);
}

button.xfact-theme-toggle--icon-only:hover {
    background: rgb(0 0 0 / 10%);
}

.xfact-dark-section button.xfact-theme-toggle--icon-only:hover {
    background: var(--xfact-glass-bg-hover);
    border-color: var(--xfact-glass-border-hover);
    color: var(--xfact-semantic-text-primary);
}

button.xfact-theme-toggle--icon-only svg {
    width: 1.25rem;
    height: 1.25rem;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

svg.xfact-theme-toggle__icon-moon,
svg.xfact-theme-toggle__icon-sun {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0.75rem;
    height: 0.75rem;
}

svg.xfact-theme-toggle__icon-moon {
    display: block;
    color: var(--xfact-semantic-text-secondary);
}

svg.xfact-theme-toggle__icon-sun {
    display: none;
    color: var(--xfact-semantic-text-secondary);
}