/* ============================================================
   LAYOUT: Page structure, grid, responsive breakpoints
   Breakpoints: 480px (mobile), 768px (tablet), 1200px+ (desktop)
   ============================================================ */

/* Page wrapper -- constrains max-width, centers content */
.page-wrapper {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Main content area -- below sticky nav */
main {
  padding: 2rem 0;
}

/* Section spacing */
section {
  margin-bottom: 3rem;
}

/* Projects grid -- responsive CSS Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

/* Writing index list */
.writing-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
}

/* Footer */
footer {
  border-top: 1px solid var(--color-dim);
  padding: 2rem 0;
  margin-top: 4rem;
  text-align: center;
}

.footer-links {
  display: flex;
  gap: 2rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 1rem;
}

/* Responsive: 768px tablet */
@media (max-width: 768px) {
  .projects-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
  }

  .footer-links {
    gap: 1rem;
  }

  main {
    padding: 1.5rem 0;
  }
}

/* Responsive: 480px mobile */
@media (max-width: 480px) {
  .page-wrapper {
    padding: 0 1rem;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  h1 { font-size: 0.875rem; }
  h2 { font-size: 0.8rem; }
}