/* =========================
   LAYOUT SYSTEM
========================= */

.page-wrapper {
    width: 100%;
    min-height: 100vh;
  }
  
  .container {
    max-width: 1120px;
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
  }
  
  .wide-container {
    max-width: 1450px;
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
  }
  
  /* =========================
     GRID HELPERS
  ========================= */
  
  .grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  
  .grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  
  .grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
  
  .auto-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
  }
  
  /* =========================
     PAGE LAYOUTS
  ========================= */
  
  .two-column-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 28px;
    align-items: start;
  }
  
  .three-column-layout {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr) 280px;
    gap: 24px;
    align-items: start;
  }
  
  /* =========================
     SIDEBAR LAYOUTS
  ========================= */
  
  .left-sidebar,
  .right-sidebar {
    position: sticky;
    top: 110px;
  }
  
  .sidebar-panel {
    background: #ffffff;
    border-radius: 18px;
    padding: 20px;
    border: 1px solid #eeeeee;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
  }
  
  /* =========================
     PORTAL LAYOUT
  ========================= */
  
  .portal-layout {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 280px 1fr;
    background: #f4f6f8;
  }
  
  .portal-sidebar {
    min-height: 100vh;
  }
  
  .portal-main {
    min-width: 0;
  }
  
  /* =========================
     SECTION SPACING
  ========================= */
  
  .section-sm {
    padding: 40px 20px;
  }
  
  .section-md {
    padding: 70px 20px;
  }
  
  .section-lg {
    padding: 95px 20px;
  }
  
  /* =========================
     FLEX HELPERS
  ========================= */
  
  .flex {
    display: flex;
  }
  
  .flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  
  .flex-wrap {
    flex-wrap: wrap;
  }
  
  .gap-sm {
    gap: 12px;
  }
  
  .gap-md {
    gap: 24px;
  }
  
  .gap-lg {
    gap: 40px;
  }
  
  /* =========================
     RESPONSIVE
  ========================= */
  
  @media (max-width: 1200px) {
    .three-column-layout {
      grid-template-columns: 220px 1fr;
    }
  
    .three-column-layout .right-sidebar {
      display: none;
    }
  
    .grid-4 {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  @media (max-width: 900px) {
    .portal-layout,
    .two-column-layout,
    .three-column-layout {
      grid-template-columns: 1fr;
    }
  
    .left-sidebar,
    .right-sidebar {
      position: static;
    }
  
    .grid-2,
    .grid-3,
    .grid-4 {
      grid-template-columns: 1fr;
    }
  }
  
  @media (max-width: 600px) {
    .container,
    .wide-container {
      padding-left: 16px;
      padding-right: 16px;
    }
  
    .section-sm {
      padding: 30px 16px;
    }
  
    .section-md {
      padding: 50px 16px;
    }
  
    .section-lg {
      padding: 70px 16px;
    }
  }