/* Modern Layout & Reset */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family-main);
  background-color: var(--color-bg-primary);
  color: var(--color-text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-base);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Utilities */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.d-flex { display: flex; }
.flex-column { flex-direction: column; }
.align-items-center { align-items: center; }
.justify-content-between { justify-content: space-between; }
.justify-content-center { justify-content: center; }

.grid {
  display: grid;
  gap: var(--spacing-md);
}

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

.hidden-mobile { display: none; }
.hidden-desktop { display: block; }

/* Mobile First Media Queries */
@media (min-width: 768px) {
  .hidden-mobile { display: block; }
  .hidden-desktop { display: none; }
  
  .grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--spacing-lg);
  }
}