/* === Display === */
.block {
    display: block;
}

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

.inline {
    display: inline;
}

.flex {
    display: flex;
}

.inline-flex {
    display: inline-flex;
}

.grid {
    display: grid;
}

.hidden {
    display: none;
}

/* === Flexbox === */
.flex-row {
    flex-direction: row;
}

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

.flex-wrap {
    flex-wrap: wrap;
}

.items-start {
    align-items: flex-start;
}

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

.items-end {
    align-items: flex-end;
}

.justify-start {
    justify-content: flex-start;
}

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

.justify-end {
    justify-content: flex-end;
}

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

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

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

.gap-1 {
    gap: 0.25rem;
}

.gap-2 {
    gap: 0.5rem;
}

.gap-4 {
    gap: 1rem;
}

.font-300 {
    font-variation-settings: 'wght' 300;
    font-weight: 300;
}

.font-500 {
    font-variation-settings: 'wght' 500;
    font-weight: 400;
}

.font-600 {
    font-variation-settings: 'wght' 600;
    font-weight: 500;
}

.font-700 {
    font-variation-settings: 'wght' 700;
    font-weight: 700;
}

.font-800 {
    font-variation-settings: 'wght' 800;
    font-weight: 800;
}

.font-900 {
    font-variation-settings: 'wght' 900;
    font-weight: 900;
}

/* === Spacing === */
.p-0 {
    padding: 0;
}

.p-1 {
    padding: 0.25rem;
}

.p-2 {
    padding: 0.5rem;
}

.p-4 {
    padding: 1rem;
}

.px-4 {
    padding-left: 1rem;
    padding-right: 1rem;
}

.py-2 {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.m-0 {
    margin: 0;
}

.m-1 {
    margin: 0.25rem;
}

.m-2 {
    margin: 0.5rem;
}

.m-4 {
    margin: 1rem;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.mt-2 {
    margin-top: 0.5rem;
}

.mb-2 {
    margin-bottom: 0.5rem;
}

/* === Sizing === */
.w-full {
    width: 100%;
}

.w-screen {
    width: 100vw;
}

.max-w-md {
    max-width: 768px;
}

.h-full {
    height: 100%;
}

.h-screen {
    height: 100vh;
}

.min-h-screen {
    min-height: 100vh;
}

/* === Typography === */
.text-xs {
    font-size: 0.75rem;
}

.text-sm {
    font-size: 0.875rem;
}

.text-base {
    font-size: 1rem;
}

.text-lg {
    font-size: 1.125rem;
}

.text-xl {
    font-size: 1.25rem;
}

.font-light {
    font-weight: 300;
}

.font-normal {
    font-weight: 400;
}

.font-bold {
    font-weight: 700;
}

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

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

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

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

.uppercase {
    text-transform: uppercase;
}

.lowercase {
    text-transform: lowercase;
}

.italic {
    font-style: italic;
}

/* === Colors === */
.bg-white {
    background-color: #fff;
}

.bg-black {
    background-color: #000;
}

.bg-gray {
    background-color: #f5f5f5;
}

.bg-primary {
    background-color: #007bff;
}

.text-white {
    color: #fff;
}

.text-black {
    color: #000;
}

.text-gray {
    color: #666;
}

.text-primary {
    color: #007bff;
}

/* === Borders === */
.border {
    border: 1px solid #ccc;
}

.border-0 {
    border: none;
}

.border-t {
    border-top: 1px solid #ccc;
}

.border-b {
    border-bottom: 1px solid #ccc;
}

.rounded {
    border-radius: 0.25rem;
}

.rounded-sm {
    border-radius: 0.125rem;
}

.rounded-lg {
    border-radius: 0.5rem;
}

/* === Positioning === */
.relative {
    position: relative;
}

.absolute {
    position: absolute;
}

.fixed {
    position: fixed;
}

.top-0 {
    top: 0;
}

.left-0 {
    left: 0;
}

.right-0 {
    right: 0;
}

.bottom-0 {
    bottom: 0;
}

.z-0 {
    z-index: 0;
}

.z-10 {
    z-index: 10;
}

.z-50 {
    z-index: 50;
}

/* === Effects === */
.opacity-0 {
    opacity: 0;
}

.opacity-50 {
    opacity: 0.5;
}

.opacity-100 {
    opacity: 1;
}

.shadow-sm {
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.shadow-md {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.shadow-lg {
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.2);
}

/* === Transitions === */
.transition {
    transition: all 0.3s ease;
}

.transition-fast {
    transition: all 0.15s ease-in-out;
}

.duration-300 {
    transition-duration: 300ms;
}

.ease-in {
    transition-timing-function: ease-in;
}

.ease-out {
    transition-timing-function: ease-out;
}

/* === Responsive (optional) === */
@media (min-width: 768px) {
    .md\:flex {
        display: flex;
    }

    .md\:text-lg {
        font-size: 1.125rem;
    }

    .md\:p-4 {
        padding: 1rem;
    }
}