/* ===== UTILS ===== */

/* ===== DISPLAY ===== */
.flex         { display: flex; }
.flex-col     { display: flex; flex-direction: column; }
.flex-row     { display: flex; flex-direction: row; }
.inline-flex  { display: inline-flex; }
.block        { display: block; }
.hidden       { display: none !important; }
.grid         { display: grid; }

/* ===== FLEX ALIGNMENT ===== */
.items-center  { align-items: center; }
.items-start   { align-items: flex-start; }
.items-end     { align-items: flex-end; }
.items-stretch { align-items: stretch; }

.justify-center  { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-start   { justify-content: flex-start; }
.justify-end     { justify-content: flex-end; }

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

.flex-1       { flex: 1; }
.flex-auto    { flex: auto; }
.flex-shrink-0 { flex-shrink: 0; }

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

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

.grid-auto-sm { grid-template-columns: repeat(auto-fit, minmax(min(160px, 100%), 1fr)); }
.grid-auto-md { grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr)); }
.grid-auto-lg { grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr)); }

/* ===== GAP ===== */
.gap-2  { gap: 2px; }
.gap-4  { gap: 4px; }
.gap-6  { gap: 6px; }
.gap-8  { gap: 8px; }
.gap-10 { gap: 10px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-20 { gap: 20px; }
.gap-24 { gap: 24px; }

/* ===== PADDING ===== */
.p-0  { padding: 0; }
.p-4  { padding: 4px; }
.p-8  { padding: 8px; }
.p-12 { padding: 12px; }
.p-16 { padding: 16px; }
.p-20 { padding: 20px; }
.p-24 { padding: 24px; }

.px-4  { padding-left: 4px;  padding-right: 4px; }
.px-8  { padding-left: 8px;  padding-right: 8px; }
.px-12 { padding-left: 12px; padding-right: 12px; }
.px-16 { padding-left: 16px; padding-right: 16px; }
.px-20 { padding-left: 20px; padding-right: 20px; }

.py-4  { padding-top: 4px;  padding-bottom: 4px; }
.py-8  { padding-top: 8px;  padding-bottom: 8px; }
.py-12 { padding-top: 12px; padding-bottom: 12px; }
.py-16 { padding-top: 16px; padding-bottom: 16px; }

.pt-4  { padding-top: 4px; }
.pt-8  { padding-top: 8px; }
.pt-12 { padding-top: 12px; }

.pb-4  { padding-bottom: 4px; }
.pb-8  { padding-bottom: 8px; }
.pb-12 { padding-bottom: 12px; }
.pb-16 { padding-bottom: 16px; }

.pl-4  { padding-left: 4px; }
.pl-8  { padding-left: 8px; }
.pl-16 { padding-left: 16px; }

.pr-4  { padding-right: 4px; }
.pr-8  { padding-right: 8px; }
.pr-16 { padding-right: 16px; }

/* ===== MARGIN ===== */
.m-auto  { margin: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }

.mb-4  { margin-bottom: 4px; }
.mb-8  { margin-bottom: 8px; }
.mb-12 { margin-bottom: 12px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }

.mt-4  { margin-top: 4px; }
.mt-8  { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }

/* ===== SIZING ===== */
.w-full  { width: 100%; }
.w-auto  { width: auto; }
.w-fit   { width: fit-content; }

.h-full   { height: 100%; }
.h-auto   { height: auto; }
.h-screen { height: 100vh; }

.min-w-0 { min-width: 0; }

.max-w-xs  { max-width: 320px; }
.max-w-sm  { max-width: 480px; }
.max-w-md  { max-width: 640px; }
.max-w-lg  { max-width: 768px; }
.max-w-xl  { max-width: 1024px; }
.max-w-full { max-width: 100%; }

/* ===== TYPOGRAPHY — SIZE ===== */
.text-xs   { font-size: 11px; }
.text-sm   { font-size: 12px; }
.text-base { font-size: 14px; }
.text-md   { font-size: 15px; }
.text-lg   { font-size: 17px; }
.text-xl   { font-size: 20px; }
.text-2xl  { font-size: 24px; }

/* ===== TYPOGRAPHY — WEIGHT ===== */
.font-normal   { font-weight: 400; }
.font-medium   { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold     { font-weight: 700; }

/* ===== TYPOGRAPHY — ALIGN ===== */
.text-left   { text-align: left; }
.text-center { text-align: center; }
.text-right  { text-align: right; }

/* ===== TYPOGRAPHY — TRUNCATE / CLAMP ===== */
.truncate {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== TYPOGRAPHY — COLOR ===== */
.text-primary   { color: var(--text); }
.text-secondary { color: var(--text-2); }
.text-muted     { color: var(--muted); }
.text-accent    { color: var(--accent); }
.text-success   { color: var(--success); }
.text-danger    { color: var(--danger); }
.text-warning   { color: var(--warning); }

/* ===== TYPOGRAPHY — TRANSFORM / MISC ===== */
.uppercase     { text-transform: uppercase; }
.capitalize    { text-transform: capitalize; }
.leading-tight  { line-height: 1.2; }
.leading-normal { line-height: 1.5; }
.tracking-wide  { letter-spacing: 0.05em; }

/* ===== OVERFLOW & SCROLL ===== */
.overflow-hidden   { overflow: hidden; }
.overflow-auto     { overflow: auto; }
.overflow-x-hidden { overflow-x: hidden; }
.overflow-y-auto   { overflow-y: auto; }

/* ===== POSITIONING ===== */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed    { position: fixed; }
.sticky   { position: sticky; }
.inset-0  { inset: 0; }

/* ===== VISUAL — BORDERS ===== */
.rounded-sm  { border-radius: var(--r-sm); }
.rounded     { border-radius: var(--r); }
.rounded-lg  { border-radius: var(--r-lg); }
.rounded-full { border-radius: 9999px; }

.border   { border: 1px solid var(--border); }
.border-t { border-top: 1px solid var(--border); }
.border-b { border-bottom: 1px solid var(--border); }

/* ===== VISUAL — BACKGROUNDS ===== */
.bg-surface     { background: var(--surface); }
.bg-surface-2   { background: var(--surface-2); }
.bg-accent      { background: var(--accent); }
.bg-accent-dim  { background: var(--accent-dim); }
.bg-success-dim { background: var(--success-dim); }
.bg-danger-dim  { background: var(--danger-dim); }
.bg-warning-dim { background: var(--warning-dim); }

/* ===== VISUAL — SHADOW, OPACITY, CURSOR ===== */
.shadow     { box-shadow: var(--shadow); }
.opacity-50 { opacity: 0.5; }
.opacity-70 { opacity: 0.7; }
.cursor-pointer { cursor: pointer; }
.select-none    { user-select: none; }

/* ===== RESPONSIVE — sm: (max-width: 768px) ===== */
@media (max-width: 768px) {
  .sm\:flex-col    { flex-direction: column; }
  .sm\:hidden      { display: none; }
  .sm\:w-full      { width: 100%; }
  .sm\:text-sm     { font-size: 12px; }
  .sm\:grid-cols-1 { grid-template-columns: 1fr; }
  .sm\:p-8         { padding: 8px; }
  .sm\:p-12        { padding: 12px; }
  .sm\:gap-8       { gap: 8px; }
}

/* ===== RESPONSIVE — xs: (max-width: 480px) ===== */
@media (max-width: 480px) {
  .xs\:hidden   { display: none; }
  .xs\:flex-col { flex-direction: column; }
  .xs\:text-xs  { font-size: 11px; }
}