/* Utility Classes */
.text-center {
    text-align: center;
}

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

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

.mb-1 {
    margin-bottom: 10px;
}

.mb-2 {
    margin-bottom: 20px;
}

.mb-3 {
    margin-bottom: 30px;
}

.mt-1 {
    margin-top: 10px;
}

.mt-2 {
    margin-top: 20px;
}

.mt-3 {
    margin-top: 30px;
}

.p-1 {
    padding: 10px;
}

.p-2 {
    padding: 20px;
}

.p-3 {
    padding: 30px;
}

.d-block {
    display: block;
}

.d-inline {
    display: inline;
}

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

.d-flex {
    display: flex;
}

.flex-column {
    flex-direction: column;
}

.justify-content-center {
    justify-content: center;
}

.justify-content-between {
    justify-content: space-between;
}

.align-items-center {
    align-items: center;
}

.w-100 {
    width: 100%;
}

.h-100 {
    height: 100%;
}

.container-fluid {
    width: 100%;
    padding-right: 15px;
    padding-left: 15px;
    margin-right: auto;
    margin-left: auto;
}

/* Visibility Utilities */
.d-none {
    display: none;
}

@media (min-width: 768px) {
    .d-md-block {
        display: block;
    }
    
    .d-md-flex {
        display: flex;
    }
    
    .d-md-none {
        display: none;
    }
}

@media (min-width: 1024px) {
    .d-lg-block {
        display: block;
    }
    
    .d-lg-flex {
        display: flex;
    }
    
    .d-lg-none {
        display: none;
    }
}