.theme-toggle {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    background: transparent;
    border: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--dur-base) var(--ease-out);
    color: var(--text-secondary);
    flex-shrink: 0;
}

.theme-toggle:hover {
    border-color: var(--border-strong);
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.theme-toggle .material-icons-round { font-size: 18px; }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }

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