.ui-icon-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    padding: 0;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-family: inherit;
    text-decoration: none;
    cursor: pointer;
    transition: border-color var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
}

.ui-icon-button--sm {
    width: 30px;
    height: 30px;
}

.ui-icon-button--md {
    width: 38px;
    height: 38px;
}

.ui-icon-button--lg {
    width: 44px;
    height: 44px;
}

.ui-icon-button--secondary {
    border-color: var(--border-strong);
    background: var(--surface);
    color: var(--text-secondary);
    box-shadow: var(--shadow-xs);
}

.ui-icon-button--ghost {
    background: transparent;
    color: var(--text-secondary);
}

.ui-icon-button--primary {
    border-color: var(--primary);
    background: var(--primary);
    color: var(--text-inverse);
}

.ui-icon-button--danger {
    background: transparent;
    color: var(--error);
}

.ui-icon-button:hover {
    border-color: var(--primary-100);
    background: var(--primary-50);
    color: var(--primary);
    outline: none;
    box-shadow: none;
}

.ui-icon-button:focus-visible {
    border-color: var(--primary);
    background: var(--primary-50);
    color: var(--primary);
    outline: none;
    box-shadow: inset 0 0 0 1px var(--primary-100);
}

.ui-icon-button--primary:hover,
.ui-icon-button--primary:focus-visible {
    border-color: var(--primary-600);
    background: var(--primary-600);
    color: var(--text-inverse);
    box-shadow: none;
}

.ui-icon-button--danger:hover,
.ui-icon-button--danger:focus-visible {
    border-color: color-mix(in srgb, var(--error) 28%, transparent);
    background: var(--error-bg);
    color: var(--error-fg);
    box-shadow: none;
}

.ui-icon-button:disabled,
.ui-icon-button[aria-disabled="true"] {
    cursor: not-allowed;
    opacity: 0.5;
    pointer-events: none;
}