/* Display Utilities - Mobile First */
.hidden, [hidden], .d-none {
    display: none !important;
}

.d-flex {
    display: flex !important;
}

.d-block {
    display: block !important;
}

.d-inline-block {
    display: inline-block !important;
}

.d-inline-flex {
    display: inline-flex !important;
}

/* Alignment Utilities */
.text-center {
    text-align: center !important;
}

.text-right {
    text-align: right !important;
}

.text-left {
    text-align: left !important;
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Responsive Utilities (Mobile First min-width) */
@media (min-width: 640px) {
    .d-sm-none {
        display: none !important;
    }
    .d-sm-block {
        display: block !important;
    }
    .d-sm-flex {
        display: flex !important;
    }
}