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

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
}

body {
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--canvas-bg);
  color: var(--text-strong);
}

.app-shell {
  --topbar-height: 128px;
  --topbar-offset: 8px;
  --header-content-gap: 10px;
  min-height: 100vh;
  display: block;
  transition: opacity 140ms ease-out;
}

.app-shell.is-loading {
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
}

/* Sidebar: fixed, inset from edges for modern floating look */
.sidebar-slot {
  position: fixed;
  left: var(--app-padding);
  top: var(--app-padding);
  bottom: var(--app-padding);
  width: 96px;
  z-index: 30;
  transition: width 180ms ease;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
}

.app-shell.is-sidebar-expanded .sidebar-slot {
  width: 252px;
}

.sidebar-backdrop {
  display: none;
}

/* Main area: scrollable, inset to match sidebar, sits to the right with gap */
.main-region {
  margin: calc(var(--app-padding) + var(--topbar-offset) + var(--topbar-height) + var(--header-content-gap)) var(--app-padding) var(--app-padding) calc(var(--app-padding) + 96px + var(--dashboard-gap));
  min-height: calc(100vh - (2 * var(--app-padding) + var(--topbar-offset) + var(--topbar-height) + var(--header-content-gap)));
  height: calc(100vh - (2 * var(--app-padding) + var(--topbar-offset) + var(--topbar-height) + var(--header-content-gap)));
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-rows: 1fr auto;
  overflow-y: auto;
  overflow-x: hidden; /* page never scrolls sideways; tables/tabs scroll inside their wraps */
  min-width: 0;
  max-width: 100%;
  transition: margin-left 180ms ease;
}

.app-shell.is-sidebar-expanded .main-region {
  margin-left: calc(var(--app-padding) + 252px + var(--dashboard-gap));
}

.app-shell.is-layout-classic {
  --topbar-offset: 0px;
  --header-content-gap: 0px;
  --topbar-height: 60px;
}

.app-shell.is-layout-classic .sidebar-slot {
  left: 0;
  top: 0;
  bottom: 0;
  width: 252px;
  z-index: 36;
}

.app-shell.is-layout-classic .sidebar-shell {
  border-radius: 0;
  height: 100vh;
  width: 100%;
}

.app-shell.is-layout-classic .header-slot {
  top: 0;
  left: 252px;
  right: 0;
  border-radius: 0;
  padding: 0;
  box-shadow: none;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  overflow: visible;
}

.app-shell.is-layout-classic .header-slot::after {
  display: none;
}

.app-shell.is-layout-classic .main-region {
  margin: var(--topbar-height) 0 0 252px;
  min-height: calc(100vh - var(--topbar-height));
  height: calc(100vh - var(--topbar-height));
  border-radius: 0;
}

.app-shell.is-layout-classic #sidebarExpandToggle {
  display: none;
}

.header-slot {
  position: fixed;
  top: calc(var(--app-padding) + var(--topbar-offset));
  left: calc(var(--app-padding) + 96px + var(--dashboard-gap));
  right: var(--app-padding);
  z-index: 35;
  padding: 0 4px 8px;
  border-radius: 18px;
  background: var(--bg-light);
  box-shadow: 0 8px 14px rgba(18, 24, 34, 0.06);
  overflow: visible;
  pointer-events: none;
}

.header-slot > * {
  pointer-events: auto;
}

.header-slot::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 0;
  height: 1px;
  background: var(--line);
  opacity: 0.9;
}

.app-shell.is-sidebar-expanded .header-slot {
  left: calc(var(--app-padding) + 252px + var(--dashboard-gap));
}

.app-shell.is-layout-classic.is-sidebar-expanded .header-slot {
  left: 252px;
}

.app-shell.is-layout-classic.is-sidebar-expanded .main-region {
  margin-left: 252px;
}

.main-region > main {
  padding-top: 4px;
}

.dashboard-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--dashboard-gap);
  padding: calc(var(--space-2) + 6px) var(--app-padding) var(--app-padding);
  min-width: 0;
  width: 100%;
}

.dashboard-layout > :first-child {
  margin-top: 4px;
}

.dashboard-board {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--dashboard-gap);
  min-width: 0;
}

.dashboard-board > .card {
  min-width: 0;
}

.widget-span-3 {
  grid-column: span 3;
}

.widget-row-2 {
  grid-row: span 2;
}

.stats-grid {
  margin-top: var(--dashboard-gap);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--dashboard-gap);
  align-items: stretch;
}

.analytics-grid {
  margin-top: var(--dashboard-gap);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--dashboard-gap);
  align-items: stretch;
}

.table-wrap {
  overflow: auto;
  min-width: 0;
}

@media (min-width: 1920px) {
  .app-shell {
    --app-padding: 20px;
  }

  .dashboard-layout {
    --dashboard-gap: 18px;
  }
}

@media (max-width: 1280px) {
  .dashboard-board {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .widget-span-3 {
    grid-column: 1 / -1;
  }

  .widget-row-2 {
    grid-row: span 1;
  }
}

@media (max-width: 1024px) {
  .main-region,
  .app-shell.is-sidebar-expanded .main-region {
    margin: calc(var(--app-padding) + var(--topbar-offset) + var(--topbar-height) + var(--header-content-gap)) var(--app-padding) var(--app-padding);
    height: calc(100vh - (2 * var(--app-padding) + var(--topbar-offset) + var(--topbar-height) + var(--header-content-gap)));
    min-height: calc(100vh - (2 * var(--app-padding) + var(--topbar-offset) + var(--topbar-height) + var(--header-content-gap)));
  }

  .sidebar-slot,
  .app-shell.is-sidebar-expanded .sidebar-slot,
  .app-shell.is-layout-classic .sidebar-slot,
  .app-shell.is-layout-classic.is-sidebar-expanded .sidebar-slot {
    left: 0;
    top: 0;
    bottom: 0;
    width: min(288px, calc(100vw - 56px));
    transform: translateX(-105%);
    z-index: 50;
    box-shadow: none;
    border-radius: 0;
  }

  .sidebar-slot.is-open,
  .app-shell.mobile-sidebar-open .sidebar-slot,
  .app-shell.is-layout-classic.mobile-sidebar-open .sidebar-slot {
    transform: translateX(0);
    box-shadow: 16px 0 40px rgba(15, 23, 42, 0.28);
  }

  .app-shell.is-layout-classic .sidebar-shell,
  .sidebar-slot .sidebar-shell {
    border-radius: 0;
    height: 100%;
    width: 100%;
  }

  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 45;
    border: 0;
    padding: 0;
    margin: 0;
    appearance: none;
    background: rgba(15, 23, 42, 0.46);
    cursor: pointer;
  }

  .app-shell.mobile-sidebar-open .sidebar-backdrop,
  body.mobile-sidebar-open .sidebar-backdrop {
    display: block;
  }

  .dashboard-layout {
    grid-template-columns: 1fr;
  }

  .header-slot,
  .app-shell.is-sidebar-expanded .header-slot,
  .app-shell.is-layout-classic .header-slot,
  .app-shell.is-layout-classic.is-sidebar-expanded .header-slot {
    left: var(--app-padding);
    right: var(--app-padding);
  }

  .app-shell.is-layout-classic .header-slot,
  .app-shell.is-layout-classic.is-sidebar-expanded .header-slot {
    left: 0;
    right: 0;
  }

  .app-shell.is-layout-classic .main-region,
  .app-shell.is-layout-classic.is-sidebar-expanded .main-region {
    margin: var(--topbar-height) 0 0;
    height: calc(100vh - var(--topbar-height));
    min-height: calc(100vh - var(--topbar-height));
  }

  .header-main {
    padding-right: var(--space-4);
  }

  .mobile-sidebar-toggle {
    display: inline-flex;
  }
}

@media (max-width: 768px) {
  .main-region,
  .app-shell.is-sidebar-expanded .main-region {
    border-radius: var(--radius);
  }

  .app-shell {
    --topbar-height: 96px;
    --app-padding: 8px;
  }

  .app-shell.is-layout-classic {
    --topbar-height: 56px;
  }

  .dashboard-board,
  .stats-grid,
  .analytics-grid {
    grid-template-columns: 1fr;
  }

  .header-main {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    gap: 8px;
  }

  .header-title {
    flex: 1 1 auto;
    font-size: 1.05rem;
    line-height: 1.25;
    min-width: 0;
  }

  .header-controls {
    flex: 0 1 auto;
    width: auto;
    max-width: calc(100% - 96px);
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 6px;
  }

  .search-box {
    width: 100%;
  }

  .table-wrap,
  .dt-table-wrap,
  .wax-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    max-width: 100%;
  }

  .dashboard-layout {
    padding-left: var(--app-padding);
    padding-right: var(--app-padding);
  }

  .compose-cc-bcc-grid {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 480px) {
  .app-shell {
    --topbar-height: 88px;
    --app-padding: 6px;
  }

  .dashboard-layout {
    gap: var(--space-1);
    padding: 0 var(--space-1) var(--space-1);
  }

  .card {
    padding: var(--space-1);
  }

  .topbar-usergroup {
    margin-left: 0;
    padding-left: 0;
    border-left: 0;
  }

  .topbar-profile-text {
    display: none;
  }
}