/* ==========================================================================
   LAYOUT & GRID SYSTEM
   ========================================================================== */

/* Main Container */
.site-container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* Page Layout Wrapper */
.site-content {
  flex: 1;
  padding-top: 30px;
  padding-bottom: 40px;
}

.layout-main-sidebar {
  display: flex;
  gap: 30px;
  align-items: flex-start;
}

/* Primary Content Column */
.primary-content {
  flex: 1;
  min-width: 0;
}

/* Secondary Column (Sidebar) */
.secondary-sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Card Grid (3 Columns on Desktop) */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--grid-gap);
}

/* Internal Page Single Column with Sidebar */
.single-content-box {
  background: var(--color-card-bg);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-card);
  padding: 30px;
}

/* Full Width Container (Pages without sidebar like Terms/Privacy) */
.layout-full-width {
  width: 100%;
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS
   ========================================================================== */

/* Large Desktop (1920px, 1440px, 1366px) */
@media (min-width: 1200px) {
  .site-container {
    max-width: var(--container-max-width);
    padding-left: 0;
    padding-right: 0;
  }
}

/* Tablet Landscape / Medium Desktop (993px - 1199px) */
@media (max-width: 1199px) {
  .cards-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
  }
  .secondary-sidebar {
    width: 260px;
  }
}

/* Tablet Portrait & Mobile Collapse (<= 992px) */
@media (max-width: 992px) {
  .layout-main-sidebar {
    flex-direction: column;
    gap: 30px;
  }
  
  .primary-content {
    width: 100%;
  }
  
  .secondary-sidebar {
    width: 100%;
  }
  
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  
  .desktop-only {
    display: none !important;
  }
  
  .mobile-only {
    display: block !important;
  }
}

/* Small Tablet & Mobile Landscape (<= 768px) */
@media (max-width: 768px) {
  .site-content {
    padding-top: 20px;
    padding-bottom: 30px;
  }
  
  .cards-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* Mobile Devices (430px, 390px, 375px, 360px) */
@media (max-width: 544px) {
  .site-container {
    padding-left: 15px;
    padding-right: 15px;
  }
  
  .single-content-box {
    padding: 20px 16px;
  }
}