/*
 * ZeroOne Lanka — CSS Utility System
 * Replaces: <script src="https://cdn.tailwindcss.com">
 * Zero external dependencies. Zero render-blocking scripts.
 * Covers all Tailwind utility classes used across this site.
 */

/* ============================================================
   1. RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
img, video { max-width: 100%; display: block; }
a { text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul, ol { list-style: none; margin: 0; padding: 0; }
p, h1, h2, h3, h4, h5, h6 { margin: 0; }
input, select, textarea { font-family: inherit; }

/* ============================================================
   2. 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; }
.contents       { display: contents; }

/* ============================================================
   3. FLEXBOX
   ============================================================ */
.flex-col       { flex-direction: column; }
.flex-row       { flex-direction: row; }
.flex-wrap      { flex-wrap: wrap; }
.flex-nowrap    { flex-wrap: nowrap; }
.flex-1         { flex: 1 1 0%; }
.flex-auto      { flex: 1 1 auto; }
.flex-shrink-0  { flex-shrink: 0; }
.flex-grow      { flex-grow: 1; }

.items-start    { align-items: flex-start; }
.items-center   { align-items: center; }
.items-end      { align-items: flex-end; }
.items-stretch  { align-items: stretch; }

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

.self-center  { align-self: center; }
.self-start   { align-self: flex-start; }
.self-end     { align-self: flex-end; }

/* Space between children */
.space-x-2 > * + * { margin-left: 0.5rem; }
.space-x-3 > * + * { margin-left: 0.75rem; }
.space-x-4 > * + * { margin-left: 1rem; }
.space-x-6 > * + * { margin-left: 1.5rem; }
.space-x-8 > * + * { margin-left: 2rem; }
.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-3 > * + * { margin-top: 0.75rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }
.space-y-8 > * + * { margin-top: 2rem; }
.space-y-0 > * + * { margin-top: 0; }

/* ============================================================
   4. GRID
   ============================================================ */
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }

.col-span-1 { grid-column: span 1 / span 1; }
.col-span-2 { grid-column: span 2 / span 2; }
.col-span-3 { grid-column: span 3 / span 3; }
.col-span-full { grid-column: 1 / -1; }

.gap-1  { gap: 0.25rem; }
.gap-2  { gap: 0.5rem; }
.gap-3  { gap: 0.75rem; }
.gap-4  { gap: 1rem; }
.gap-5  { gap: 1.25rem; }
.gap-6  { gap: 1.5rem; }
.gap-8  { gap: 2rem; }
.gap-10 { gap: 2.5rem; }
.gap-12 { gap: 3rem; }
.gap-16 { gap: 4rem; }
.gap-x-4 { column-gap: 1rem; }
.gap-x-6 { column-gap: 1.5rem; }
.gap-x-8 { column-gap: 2rem; }
.gap-y-4 { row-gap: 1rem; }
.gap-y-6 { row-gap: 1.5rem; }
.gap-y-8 { row-gap: 2rem; }

/* ============================================================
   5. CONTAINER
   ============================================================ */
.container {
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
    max-width: 1280px;
}

/* ============================================================
   6. SIZING — WIDTH
   ============================================================ */
.w-4  { width: 1rem; }
.w-5  { width: 1.25rem; }
.w-6  { width: 1.5rem; }
.w-8  { width: 2rem; }
.w-10 { width: 2.5rem; }
.w-12 { width: 3rem; }
.w-16 { width: 4rem; }
.w-20 { width: 5rem; }
.w-24 { width: 6rem; }
.w-32 { width: 8rem; }
.w-auto   { width: auto; }
.w-full   { width: 100%; }
.w-screen { width: 100vw; }
.w-1\/2   { width: 50%; }
.w-1\/3   { width: 33.333333%; }
.w-2\/3   { width: 66.666667%; }
.w-3\/4   { width: 75%; }
.w-11\/12 { width: 91.666667%; }

/* SIZING — HEIGHT */
.h-4  { height: 1rem; }
.h-5  { height: 1.25rem; }
.h-6  { height: 1.5rem; }
.h-8  { height: 2rem; }
.h-10 { height: 2.5rem; }
.h-12 { height: 3rem; }
.h-16 { height: 4rem; }
.h-20 { height: 5rem; }
.h-24 { height: 6rem; }
.h-auto   { height: auto; }
.h-full   { height: 100%; }
.h-screen { height: 100vh; }

/* MAX WIDTH */
.max-w-xs   { max-width: 20rem; }
.max-w-sm   { max-width: 24rem; }
.max-w-md   { max-width: 28rem; }
.max-w-lg   { max-width: 32rem; }
.max-w-xl   { max-width: 36rem; }
.max-w-2xl  { max-width: 42rem; }
.max-w-3xl  { max-width: 48rem; }
.max-w-4xl  { max-width: 56rem; }
.max-w-5xl  { max-width: 64rem; }
.max-w-6xl  { max-width: 72rem; }
.max-w-7xl  { max-width: 80rem; }
.max-w-full { max-width: 100%; }
.max-w-none { max-width: none; }
.min-w-0    { min-width: 0; }
.min-h-0    { min-height: 0; }

/* ============================================================
   7. SPACING — PADDING
   ============================================================ */
.p-0  { padding: 0; }
.p-1  { padding: 0.25rem; }
.p-2  { padding: 0.5rem; }
.p-3  { padding: 0.75rem; }
.p-4  { padding: 1rem; }
.p-5  { padding: 1.25rem; }
.p-6  { padding: 1.5rem; }
.p-8  { padding: 2rem; }
.p-10 { padding: 2.5rem; }
.p-12 { padding: 3rem; }

.px-0 { padding-left: 0; padding-right: 0; }
.px-1 { padding-left: 0.25rem; padding-right: 0.25rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-5 { padding-left: 1.25rem; padding-right: 1.25rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.px-10{ padding-left: 2.5rem; padding-right: 2.5rem; }
.px-12{ padding-left: 3rem; padding-right: 3rem; }

.py-0  { padding-top: 0; padding-bottom: 0; }
.py-1  { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.py-2  { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3  { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-4  { padding-top: 1rem; padding-bottom: 1rem; }
.py-5  { padding-top: 1.25rem; padding-bottom: 1.25rem; }
.py-6  { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-8  { padding-top: 2rem; padding-bottom: 2rem; }
.py-10 { padding-top: 2.5rem; padding-bottom: 2.5rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.py-20 { padding-top: 5rem; padding-bottom: 5rem; }
.py-24 { padding-top: 6rem; padding-bottom: 6rem; }
.py-28 { padding-top: 7rem; padding-bottom: 7rem; }
.py-32 { padding-top: 8rem; padding-bottom: 8rem; }

.pt-0 { padding-top: 0; }
.pt-2 { padding-top: 0.5rem; }
.pt-4 { padding-top: 1rem; }
.pt-6 { padding-top: 1.5rem; }
.pt-8 { padding-top: 2rem; }

.pb-0 { padding-bottom: 0; }
.pb-2 { padding-bottom: 0.5rem; }
.pb-4 { padding-bottom: 1rem; }
.pb-6 { padding-bottom: 1.5rem; }
.pb-8 { padding-bottom: 2rem; }

.pl-1 { padding-left: 0.25rem; }
.pl-4 { padding-left: 1rem; }
.pl-6 { padding-left: 1.5rem; }
.pr-2 { padding-right: 0.5rem; }
.pr-4 { padding-right: 1rem; }

/* ============================================================
   8. SPACING — MARGIN
   ============================================================ */
.m-0    { margin: 0; }
.m-auto { margin: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mx-1 { margin-left: 0.25rem; margin-right: 0.25rem; }
.mx-2 { margin-left: 0.5rem; margin-right: 0.5rem; }
.mx-3 { margin-left: 0.75rem; margin-right: 0.75rem; }
.mx-4 { margin-left: 1rem; margin-right: 1rem; }
.my-2 { margin-top: 0.5rem; margin-bottom: 0.5rem; }
.my-4 { margin-top: 1rem; margin-bottom: 1rem; }
.my-6 { margin-top: 1.5rem; margin-bottom: 1.5rem; }
.my-8 { margin-top: 2rem; margin-bottom: 2rem; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-5 { margin-top: 1.25rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-10{ margin-top: 2.5rem; }
.mt-12{ margin-top: 3rem; }
.mt-16{ margin-top: 4rem; }
.mt-auto { margin-top: auto; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-5 { margin-bottom: 1.25rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-10{ margin-bottom: 2.5rem; }
.mb-12{ margin-bottom: 3rem; }
.mb-16{ margin-bottom: 4rem; }

.ml-1 { margin-left: 0.25rem; }
.ml-2 { margin-left: 0.5rem; }
.ml-3 { margin-left: 0.75rem; }
.ml-4 { margin-left: 1rem; }
.ml-6 { margin-left: 1.5rem; }
.ml-auto { margin-left: auto; }

.mr-1 { margin-right: 0.25rem; }
.mr-2 { margin-right: 0.5rem; }
.mr-3 { margin-right: 0.75rem; }
.mr-4 { margin-right: 1rem; }
.mr-6 { margin-right: 1.5rem; }

/* ============================================================
   9. TYPOGRAPHY — SIZE
   ============================================================ */
.text-xs   { font-size: 0.75rem;  line-height: 1rem; }
.text-sm   { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem;     line-height: 1.5rem; }
.text-lg   { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl   { font-size: 1.25rem;  line-height: 1.75rem; }
.text-2xl  { font-size: 1.5rem;   line-height: 2rem; }
.text-3xl  { font-size: 1.875rem; line-height: 2.25rem; }
.text-4xl  { font-size: 2.25rem;  line-height: 2.5rem; }
.text-5xl  { font-size: 3rem;     line-height: 1; }
.text-6xl  { font-size: 3.75rem;  line-height: 1; }
.text-7xl  { font-size: 4.5rem;   line-height: 1; }

/* FONT WEIGHT */
.font-thin       { font-weight: 100; }
.font-light      { font-weight: 300; }
.font-normal     { font-weight: 400; }
.font-medium     { font-weight: 500; }
.font-semibold   { font-weight: 600; }
.font-bold       { font-weight: 700; }
.font-extrabold  { font-weight: 800; }
.font-black      { font-weight: 900; }

/* TEXT ALIGNMENT */
.text-left   { text-align: left; }
.text-center { text-align: center; }
.text-right  { text-align: right; }

/* TEXT DECORATION */
.underline        { text-decoration: underline; }
.no-underline     { text-decoration: none; }
.line-through     { text-decoration: line-through; }

/* LEADING (LINE HEIGHT) */
.leading-none   { line-height: 1; }
.leading-tight  { line-height: 1.25; }
.leading-snug   { line-height: 1.375; }
.leading-normal { line-height: 1.5; }
.leading-relaxed{ line-height: 1.625; }
.leading-loose  { line-height: 2; }
.leading-6      { line-height: 1.5rem; }

/* TRACKING (LETTER SPACING) */
.tracking-tighter { letter-spacing: -0.05em; }
.tracking-tight   { letter-spacing: -0.025em; }
.tracking-normal  { letter-spacing: 0; }
.tracking-wide    { letter-spacing: 0.025em; }
.tracking-wider   { letter-spacing: 0.05em; }
.tracking-widest  { letter-spacing: 0.1em; }

/* WHITESPACE */
.whitespace-nowrap  { white-space: nowrap; }
.whitespace-normal  { white-space: normal; }
.break-words        { word-break: break-word; overflow-wrap: break-word; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ANTIALIASED */
.antialiased {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================================
   10. COLORS — TEXT
   ============================================================ */
.text-white        { color: #ffffff; }
.text-black        { color: #000000; }
.text-slate-100    { color: #f1f5f9; }
.text-slate-200    { color: #e2e8f0; }
.text-slate-300    { color: #cbd5e1; }
.text-slate-400    { color: #94a3b8; }
.text-slate-500    { color: #64748b; }
.text-slate-600    { color: #475569; }
.text-slate-700    { color: #334155; }
.text-slate-800    { color: #1e293b; }
.text-slate-900    { color: #0f172a; }

.text-indigo-300   { color: #a5b4fc; }
.text-indigo-400   { color: #818cf8; }
.text-indigo-500   { color: #6366f1; }
.text-indigo-600   { color: #4f46e5; }

.text-violet-400   { color: #a78bfa; }
.text-purple-400   { color: #c084fc; }
.text-purple-300   { color: #d8b4fe; }

.text-green-400    { color: #4ade80; }
.text-green-500    { color: #22c55e; }
.text-blue-400     { color: #60a5fa; }
.text-blue-300     { color: #93c5fd; }
.text-red-400      { color: #f87171; }
.text-red-500      { color: #ef4444; }
.text-yellow-400   { color: #facc15; }
.text-amber-400    { color: #fbbf24; }
.text-amber-500    { color: #f59e0b; }
.text-emerald-400  { color: #34d399; }

/* ============================================================
   11. COLORS — BACKGROUND
   ============================================================ */
.bg-transparent    { background-color: transparent; }
.bg-white          { background-color: #ffffff; }
.bg-black          { background-color: #000000; }
.bg-slate-700      { background-color: #334155; }
.bg-slate-800      { background-color: #1e293b; }
.bg-slate-900      { background-color: #0f172a; }
.bg-indigo-500     { background-color: #6366f1; }
.bg-indigo-600     { background-color: #4f46e5; }
.bg-green-500      { background-color: #22c55e; }
.bg-violet-600     { background-color: #7c3aed; }

/* ============================================================
   12. BORDER
   ============================================================ */
.border           { border-width: 1px; border-style: solid; }
.border-0         { border-width: 0; }
.border-t         { border-top-width: 1px; border-top-style: solid; }
.border-b         { border-bottom-width: 1px; border-bottom-style: solid; }
.border-l         { border-left-width: 1px; border-left-style: solid; }
.border-r         { border-right-width: 1px; border-right-style: solid; }
.border-2         { border-width: 2px; border-style: solid; }

.border-gray-300   { border-color: #d1d5db; }
.border-slate-600  { border-color: #475569; }
.border-slate-700  { border-color: #334155; }
.border-slate-800  { border-color: #1e293b; }
.border-indigo-500 { border-color: #6366f1; }
.border-indigo-600 { border-color: #4f46e5; }

/* BORDER RADIUS */
.rounded-none { border-radius: 0; }
.rounded-sm   { border-radius: 0.125rem; }
.rounded      { border-radius: 0.25rem; }
.rounded-md   { border-radius: 0.375rem; }
.rounded-lg   { border-radius: 0.5rem; }
.rounded-xl   { border-radius: 0.75rem; }
.rounded-2xl  { border-radius: 1rem; }
.rounded-3xl  { border-radius: 1.5rem; }
.rounded-full { border-radius: 9999px; }

/* ============================================================
   13. SHADOWS
   ============================================================ */
.shadow-sm  { box-shadow: 0 1px 2px 0 rgba(0,0,0,0.05); }
.shadow     { box-shadow: 0 1px 3px 0 rgba(0,0,0,0.1), 0 1px 2px -1px rgba(0,0,0,0.1); }
.shadow-md  { box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1); }
.shadow-lg  { box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1); }
.shadow-xl  { box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1); }
.shadow-2xl { box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25); }
.shadow-none{ box-shadow: none; }

/* ============================================================
   14. POSITIONING
   ============================================================ */
.static   { position: static; }
.relative { position: relative; }
.absolute { position: absolute; }
.fixed    { position: fixed; }
.sticky   { position: sticky; }

.inset-0  { top: 0; right: 0; bottom: 0; left: 0; }
.top-0    { top: 0; }
.top-1    { top: 0.25rem; }
.top-4    { top: 1rem; }
.right-0  { right: 0; }
.right-1  { right: 0.25rem; }
.right-4  { right: 1rem; }
.bottom-0 { bottom: 0; }
.bottom-4 { bottom: 1rem; }
.left-0   { left: 0; }
.left-4   { left: 1rem; }
.-top-2   { top: -0.5rem; }

.z-0   { z-index: 0; }
.z-10  { z-index: 10; }
.z-20  { z-index: 20; }
.z-30  { z-index: 30; }
.z-40  { z-index: 40; }
.z-50  { z-index: 50; }
.z-100 { z-index: 100; }

/* ============================================================
   15. OVERFLOW
   ============================================================ */
.overflow-hidden  { overflow: hidden; }
.overflow-auto    { overflow: auto; }
.overflow-scroll  { overflow: scroll; }
.overflow-visible { overflow: visible; }
.overflow-x-hidden{ overflow-x: hidden; }
.overflow-y-auto  { overflow-y: auto; }

/* ============================================================
   16. OBJECT FIT
   ============================================================ */
.object-cover   { object-fit: cover; }
.object-contain { object-fit: contain; }
.object-center  { object-position: center; }

/* ============================================================
   17. CURSOR & INTERACTION
   ============================================================ */
.cursor-pointer { cursor: pointer; }
.cursor-default { cursor: default; }
.cursor-not-allowed { cursor: not-allowed; }
.select-none    { user-select: none; }
.pointer-events-none { pointer-events: none; }

/* ============================================================
   18. OPACITY
   ============================================================ */
.opacity-0   { opacity: 0; }
.opacity-25  { opacity: 0.25; }
.opacity-50  { opacity: 0.5; }
.opacity-75  { opacity: 0.75; }
.opacity-100 { opacity: 1; }

/* ============================================================
   19. TRANSITION
   ============================================================ */
.transition           { transition-property: color, background-color, border-color, fill, stroke, opacity, box-shadow, transform; transition-timing-function: cubic-bezier(0.4,0,0.2,1); transition-duration: 150ms; }
.transition-colors    { transition-property: color, background-color, border-color; transition-timing-function: cubic-bezier(0.4,0,0.2,1); transition-duration: 150ms; }
.transition-all       { transition-property: all; transition-timing-function: cubic-bezier(0.4,0,0.2,1); transition-duration: 150ms; }
.transition-transform { transition-property: transform; transition-timing-function: cubic-bezier(0.4,0,0.2,1); transition-duration: 150ms; }
.duration-200  { transition-duration: 200ms; }
.duration-300  { transition-duration: 300ms; }
.duration-500  { transition-duration: 500ms; }
.ease-in-out   { transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); }

/* ============================================================
   20. TRANSFORM
   ============================================================ */
.scale-100 { transform: scale(1); }
.scale-105 { transform: scale(1.05); }
.scale-110 { transform: scale(1.1); }
.-translate-x-full { transform: translateX(-100%); }
.translate-x-0     { transform: translateX(0); }
.-translate-y-1    { transform: translateY(-0.25rem); }
.-translate-y-2    { transform: translateY(-0.5rem); }

/* ============================================================
   21. ACCESSIBILITY
   ============================================================ */
.sr-only {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border-width: 0;
}
.not-sr-only {
    position: static;
    width: auto; height: auto;
    padding: 0; margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
}
.focus-visible\:outline-none:focus-visible { outline: none; }
.focus\:ring-indigo-500:focus {
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.5);
}

/* ============================================================
   22. FORM ELEMENTS
   ============================================================ */
.resize-none { resize: none; }
.appearance-none { appearance: none; -webkit-appearance: none; }

/* CHECKBOX / RADIO */
.h-4.w-4 { height: 1rem; width: 1rem; }

/* ============================================================
   23. HOVER STATES
   ============================================================ */
.hover\:text-white:hover          { color: #ffffff; }
.hover\:text-slate-200:hover      { color: #e2e8f0; }
.hover\:text-indigo-300:hover     { color: #a5b4fc; }
.hover\:text-indigo-400:hover     { color: #818cf8; }
.hover\:text-indigo-500:hover     { color: #6366f1; }
.hover\:bg-slate-700:hover        { background-color: #334155; }
.hover\:bg-slate-800:hover        { background-color: #1e293b; }
.hover\:bg-indigo-500:hover       { background-color: #6366f1; }
.hover\:bg-indigo-600:hover       { background-color: #4f46e5; }
.hover\:bg-green-600:hover        { background-color: #16a34a; }
.hover\:border-indigo-500:hover   { border-color: #6366f1; }
.hover\:shadow-xl:hover           { box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1); }
.hover\:scale-105:hover           { transform: scale(1.05); }
.hover\:scale-110:hover           { transform: scale(1.1); }
.hover\:-translate-y-1:hover      { transform: translateY(-0.25rem); }
.hover\:-translate-y-2:hover      { transform: translateY(-0.5rem); }
.hover\:opacity-80:hover          { opacity: 0.8; }

/* ============================================================
   24. RESPONSIVE — SM (640px+)
   ============================================================ */
@media (min-width: 640px) {
    .sm\:flex          { display: flex; }
    .sm\:hidden        { display: none; }
    .sm\:block         { display: block; }
    .sm\:inline-block  { display: inline-block; }
    .sm\:grid-cols-2   { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .sm\:grid-cols-3   { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .sm\:px-6          { padding-left: 1.5rem; padding-right: 1.5rem; }
    .sm\:py-8          { padding-top: 2rem; padding-bottom: 2rem; }
    .sm\:text-xl       { font-size: 1.25rem; line-height: 1.75rem; }
    .sm\:text-2xl      { font-size: 1.5rem; line-height: 2rem; }
    .sm\:text-3xl      { font-size: 1.875rem; line-height: 2.25rem; }
    .sm\:text-4xl      { font-size: 2.25rem; line-height: 2.5rem; }
    .sm\:text-5xl      { font-size: 3rem; line-height: 1; }
    .sm\:flex-row      { flex-direction: row; }
    .sm\:items-center  { align-items: center; }
    .sm\:space-x-4 > * + * { margin-left: 1rem; }
    .sm\:space-y-0 > * + * { margin-top: 0; }
    .sm\:flex-wrap     { flex-wrap: wrap; }
    .sm\:justify-center{ justify-content: center; }
    .sm\:gap-4         { gap: 1rem; }
    .sm\:gap-6         { gap: 1.5rem; }
    .sm\:mt-0          { margin-top: 0; }
    .sm\:ml-4          { margin-left: 1rem; }
    .sm\:text-left     { text-align: left; }
    .sm\:text-center   { text-align: center; }
    .sm\:w-auto        { width: auto; }
    .sm\:p-8           { padding: 2rem; }
}

/* ============================================================
   25. RESPONSIVE — MD (768px+)
   ============================================================ */
@media (min-width: 768px) {
    .md\:flex           { display: flex; }
    .md\:hidden         { display: none; }
    .md\:block          { display: block; }
    .md\:inline-block   { display: inline-block; }
    .md\:grid-cols-2    { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:grid-cols-3    { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .md\:grid-cols-4    { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .md\:flex-row       { flex-direction: row; }
    .md\:items-center   { align-items: center; }
    .md\:justify-between{ justify-content: space-between; }
    .md\:px-6           { padding-left: 1.5rem; padding-right: 1.5rem; }
    .md\:py-16          { padding-top: 4rem; padding-bottom: 4rem; }
    .md\:py-24          { padding-top: 6rem; padding-bottom: 6rem; }
    .md\:py-28          { padding-top: 7rem; padding-bottom: 7rem; }
    .md\:p-12           { padding: 3rem; }
    .md\:gap-8          { gap: 2rem; }
    .md\:gap-12         { gap: 3rem; }
    .md\:gap-16         { gap: 4rem; }
    .md\:text-4xl       { font-size: 2.25rem; line-height: 2.5rem; }
    .md\:text-5xl       { font-size: 3rem; line-height: 1; }
    .md\:text-6xl       { font-size: 3.75rem; line-height: 1; }
    .md\:mb-16          { margin-bottom: 4rem; }
    .md\:mt-0           { margin-top: 0; }
    .md\:ml-4           { margin-left: 1rem; }
    .md\:flex-row-reverse { flex-direction: row-reverse; }
    .md\:text-left      { text-align: left; }
    .md\:text-center    { text-align: center; }
    .md\:col-span-2     { grid-column: span 2 / span 2; }
    .md\:w-1\/2         { width: 50%; }
}

/* ============================================================
   26. RESPONSIVE — LG (1024px+)
   ============================================================ */
@media (min-width: 1024px) {
    .lg\:flex           { display: flex; }
    .lg\:hidden         { display: none; }
    .lg\:block          { display: block; }
    .lg\:inline-block   { display: inline-block; }
    .lg\:grid-cols-2    { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .lg\:grid-cols-3    { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .lg\:grid-cols-4    { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .lg\:grid-cols-5    { grid-template-columns: repeat(5, minmax(0, 1fr)); }
    .lg\:grid-cols-6    { grid-template-columns: repeat(6, minmax(0, 1fr)); }
    .lg\:px-8           { padding-left: 2rem; padding-right: 2rem; }
    .lg\:space-x-3 > * + * { margin-left: 0.75rem; }
    .lg\:space-x-6 > * + * { margin-left: 1.5rem; }
    .lg\:gap-8          { gap: 2rem; }
    .lg\:ml-4           { margin-left: 1rem; }
    .lg\:ml-6           { margin-left: 1.5rem; }
    .lg\:text-5xl       { font-size: 3rem; line-height: 1; }
    .lg\:text-6xl       { font-size: 3.75rem; line-height: 1; }
    .lg\:text-7xl       { font-size: 4.5rem; line-height: 1; }
    .lg\:flex-row       { flex-direction: row; }
    .lg\:items-center   { align-items: center; }
    .lg\:py-24          { padding-top: 6rem; padding-bottom: 6rem; }
    .lg\:col-span-2     { grid-column: span 2 / span 2; }
    .lg\:text-left      { text-align: left; }
    .lg\:w-1\/2         { width: 50%; }
}

/* ============================================================
   27. RESPONSIVE — XL (1280px+)
   ============================================================ */
@media (min-width: 1280px) {
    .xl\:grid-cols-4   { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .xl\:grid-cols-5   { grid-template-columns: repeat(5, minmax(0, 1fr)); }
    .xl\:px-0          { padding-left: 0; padding-right: 0; }
    .xl\:text-7xl      { font-size: 4.5rem; line-height: 1; }
}

/* ============================================================
   28. FOCUS STATES (accessibility)
   ============================================================ */
.focus\:outline-none:focus { outline: none; }
.focus\:ring-2:focus       { box-shadow: 0 0 0 2px; }
.focus\:border-indigo-500:focus { border-color: #6366f1; }