/* 明暗主题切换按钮 */
.theme-toggle {
    position: relative;
    cursor: pointer;
    border: 1px solid transparent;
    background: transparent;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.15s ease;
}

.theme-toggle:hover {
    background: var(--color-border, #e5e7eb);
    border-color: var(--color-border, #e5e7eb);
}

.theme-toggle:active {
    transform: scale(0.94);
}

.theme-toggle:focus-visible {
    outline: 2px solid var(--color-primary, #0d9488);
    outline-offset: 2px;
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
    display: block;
    pointer-events: none;
}

.theme-toggle .icon-moon,
.icon-btn.theme-toggle .icon-moon {
    display: none;
}

[data-theme="dark"] .theme-toggle .icon-sun,
[data-theme="dark"] .icon-btn.theme-toggle .icon-sun {
    display: none;
}

[data-theme="dark"] .theme-toggle .icon-moon,
[data-theme="dark"] .icon-btn.theme-toggle .icon-moon {
    display: block;
}

[data-theme="dark"] .theme-toggle:hover {
    background: var(--color-border, #374151);
    border-color: var(--color-border, #374151);
}