/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  color: var(--color-gray-800);
  background: var(--color-gray-100);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* === SCROLLBAR === */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--color-gray-100); }
::-webkit-scrollbar-thumb { background: var(--color-gray-300); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--color-gray-400); }

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--color-gray-900); }
h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }
p  { color: var(--color-gray-600); }

/* === UTILITIES === */
.container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 var(--space-4); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }

.flex         { display: flex; }
.flex-col     { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }

.text-sm   { font-size: var(--text-sm); }
.text-xs   { font-size: var(--text-xs); }
.text-muted { color: var(--color-gray-500); }
.text-primary { color: var(--color-primary); }
.font-bold   { font-weight: 700; }
.font-medium { font-weight: 500; }

.rounded-full { border-radius: var(--radius-full); }
.line-clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

.no-scrollbar::-webkit-scrollbar { display: none; }
.no-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }

.page-fade { animation: pageFade .3s ease-out; }
@keyframes pageFade { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* === GRID === */
.grid-products {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}
@media (min-width: 640px)  { .grid-products { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 900px)  { .grid-products { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 1100px) { .grid-products { grid-template-columns: repeat(5, 1fr); } }

/* === RESPONSIVE HIDE/SHOW === */
.mobile-only  { display: block; }
.desktop-only { display: none; }
@media (min-width: 768px) {
  .mobile-only  { display: none; }
  .desktop-only { display: block; }
}
.flex-desktop { display: none; }
@media (min-width: 768px) { .flex-desktop { display: flex; } }