/**
 * RocketBank Design System - Layout & Grid System
 * Mobile-first responsive design, sticky headers, grid-template-areas
 */

@layer layout {
  /* Container system */
  .container {
    width: 100%;
    max-width: var(--container-max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }

  .container--fluid {
    max-width: 100%;
  }

  .container--narrow {
    max-width: 768px;
  }

  /* Public Site Layout */
  .public-layout {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
  }

  .public-header {
    position: relative;
    z-index: 100;
    height: 0;
    background: transparent;
    border: none;
  }

  .public-main {
    flex: 1 0 auto;
    width: 100%;
    box-sizing: border-box;
  }

  .public-footer {
    flex-shrink: 0;
    background-color: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    padding: var(--space-2xl) 0 var(--space-xl);
  }

  /* Dashboard Application Layout (CSS Grid with grid-template-areas) */
  .dashboard-layout {
    display: grid;
    min-height: 100vh;
    grid-template-rows: auto 1fr auto;
    grid-template-columns: 100%;
    grid-template-areas:
      "topbar"
      "main"
      "footer";
  }

  .dashboard-sidebar {
    display: none;
    grid-area: sidebar;
    background-color: var(--bg-surface);
    border-right: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    padding: var(--space-lg) var(--space-md);
    z-index: var(--z-sticky);
  }

  .dashboard-topbar {
    grid-area: topbar;
    position: sticky;
    top: 0;
    height: var(--header-height);
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    padding: 0 var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: var(--z-sticky);
  }

  .dashboard-main {
    grid-area: main;
    padding: var(--space-xl) var(--space-lg);
    background-color: var(--bg-body);
    overflow-x: hidden;
  }

  .dashboard-footer {
    grid-area: footer;
    background-color: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    padding: var(--space-md) var(--space-lg);
    text-align: center;
    font-size: var(--font-size-xs);
    color: var(--text-muted);
  }

  /* Dashboard View Areas Grid */
  .dashboard-grid {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: 1fr;
    grid-template-areas:
      "overview"
      "metrics"
      "accounts"
      "transactions"
      "quickactions";
  }

  .area-overview { grid-area: overview; }
  .area-metrics { grid-area: metrics; }
  .area-accounts { grid-area: accounts; }
  .area-transactions { grid-area: transactions; }
  .area-quickactions { grid-area: quickactions; }

  /* Responsive Grid Breakpoints */

  /* >= 480px (Mobile landscape & large phones) */
  @media (min-width: 480px) {
    .grid-cols-2-xs {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  /* >= 768px (Tablets) */
  @media (min-width: 768px) {
    .dashboard-grid {
      grid-template-columns: repeat(2, 1fr);
      grid-template-areas:
        "overview overview"
        "metrics metrics"
        "accounts quickactions"
        "transactions transactions";
    }

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: var(--space-lg);
    }

    .grid-3 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: var(--space-lg);
    }

    .grid-4 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: var(--space-lg);
    }
  }

  /* >= 1024px (Desktops) */
  @media (min-width: 1024px) {
    .dashboard-layout {
      grid-template-columns: var(--sidebar-width) 1fr;
      grid-template-rows: var(--header-height) 1fr auto;
      grid-template-areas:
        "sidebar topbar"
        "sidebar main"
        "sidebar footer";
    }

    .dashboard-sidebar {
      display: flex;
      flex-direction: column;
    }

    .dashboard-grid {
      grid-template-columns: 2fr 1fr;
      grid-template-areas:
        "overview overview"
        "metrics metrics"
        "accounts quickactions"
        "transactions quickactions";
    }

    .grid-3 {
      grid-template-columns: repeat(3, 1fr);
    }

    .grid-4 {
      grid-template-columns: repeat(4, 1fr);
    }
  }

  /* >= 1440px (Wide screens) */
  @media (min-width: 1440px) {
    :root {
      --container-max-width: 1400px;
      --sidebar-width: 19rem;
    }

    .dashboard-grid {
      grid-template-columns: 2.2fr 1fr;
      gap: var(--space-xl);
    }
  }
}