:root {
  --ims-bg: #F7F7F8;
  --ims-surface: #FFFFFF;
  --ims-text: #111827;
  --ims-muted: #6B7280;
  --ims-primary: #4B5563;
  --ims-accent: #6366F1;
  --ims-danger: #DC2626;
  --ims-radius: 12px;
  --ims-radius-sm: 8px;
  --ims-shadow: 0 2px 8px rgba(0, 0, 0, .08);
  --ims-border: 1px solid #E5E7EB;
  --ims-spacing: 12px;
  --ims-z-header: 50;
  --ims-z-sidebar: 40;
  --ims-z-drawer: 100;
}

html,
body {
  height: 100%;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--ims-bg);
  color: var(--ims-text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

/* AppShell layout */
.ims-app {
  display: grid;
  grid-template-rows: 56px 1fr;
  grid-template-columns: 280px 1fr;
  height: 100dvh;
  overflow: hidden;
}

.ims-header {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  background: var(--ims-surface);
  border-bottom: var(--ims-border);
  position: sticky;
  top: 0;
  z-index: var(--ims-z-header);
}

.ims-header .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}

.ims-header img {
  height: 24px;
  width: 24px;
}

.page-head {
  background: linear-gradient(180deg, #fff, #f9fbfd);
  border: 1px solid #edf2f7;
  border-radius: .75rem;
}


.ims-sidebar {
  grid-row: 2;
  grid-column: 1;
  position: sticky;
  top: 56px;
  align-self: start;
  height: calc(100dvh - 56px);
  overflow-y: auto;
  background: var(--ims-surface);
  border-right: var(--ims-border);
  padding: 12px;
}

.ims-sidebar .nav {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 4px;
}

.ims-sidebar .nav a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: var(--ims-radius-sm);
  text-decoration: none;
  color: var(--ims-text);
}

.ims-sidebar .nav a:hover,
.ims-sidebar .nav a:focus {
  background: #F3F4F6;
  outline: none;
}

.ims-sidebar .nav a.active {
  background: #EEF2FF;
  color: #3730A3;
  font-weight: 600;
}

.ims-main {
  grid-row: 2;
  grid-column: 2;
  overflow-y: auto;
  padding: 16px;
}

.container-fluid {
  max-width: 1280px;
  margin: 0 auto;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip-link:focus {
  position: fixed;
  left: 16px;
  top: 16px;
  z-index: var(--ims-z-drawer);
  background: #111;
  color: #fff;
  padding: 8px 12px;
  border-radius: 6px;
}

/* Buttons – map Bootstrap to IMS tokens */
button,
.btn {
  --_bg: var(--ims-primary);
  --_fg: #fff;
  --_bd: transparent;
  border-radius: 10px;
  border: 1px solid var(--_bd);
  padding: 8px 12px;
  box-shadow: none;
}

.btn-primary {
  --_bg: var(--ims-primary);
  --_fg: #fff;
  background: var(--_bg);
  color: var(--_fg);
  border-color: var(--_bg);
}

.btn-secondary {
  --_bg: #E5E7EB;
  --_fg: #111;
  background: var(--_bg);
  color: var(--_fg);
}

.btn-outline-secondary {
  background: transparent;
  color: var(--ims-text);
  border-color: #D1D5DB;
}

.btn-danger,
.btn-outline-danger {
  background: var(--ims-danger);
  border-color: var(--ims-danger);
  color: #fff;
}

.btn:focus-visible {
  outline: 3px solid #A5B4FC;
  outline-offset: 2px;
}

.badge {
  border-radius: 999px;
}

/* FilterBar */
.ims-filterbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding: 8px;
  background: var(--ims-surface);
  border: var(--ims-border);
  border-radius: var(--ims-radius);
  box-shadow: var(--ims-shadow);
  margin-bottom: 12px;
}

.ims-filterbar .chips {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

/* Tables */
table.ims-table,
table.table {
  background: var(--ims-surface);
  border: var(--ims-border);
  border-radius: var(--ims-radius);
  overflow: hidden;
}

table.ims-table thead th,
table.table thead th {
  position: sticky;
  top: 0;
  background: #FAFAFA;
  z-index: 1;
}

table.ims-table th,
table.ims-table td,
table.table th,
table.table td {
  vertical-align: middle;
}

table.ims-table td.num,
table.table td.text-end {
  text-align: right;
}

.table-responsive {
  overflow-x: auto;
}

/* States */
.skeleton {
  background: linear-gradient(90deg, #eee, #f7f7f7, #eee);
  background-size: 200% 100%;
  animation: shimmer 1.2s infinite;
  height: 1em;
  border-radius: 6px;
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }

  100% {
    background-position: 200% 0;
  }
}

/* Drawer for <1024px */
@media (max-width: 1023px) {
  .ims-app {
    grid-template-columns: 1fr;
  }

  .ims-sidebar {
    position: fixed;
    top: 56px;
    left: 0;
    width: min(88vw, 320px);
    height: calc(100dvh - 56px);
    transform: translateX(-100%);
    transition: transform .2s ease;
    z-index: var(--ims-z-drawer);
  }

  .ims-sidebar.is-open {
    transform: translateX(0);
  }

  .ims-overlay {
    content: "";
    position: fixed;
    inset: 56px 0 0 0;
    background: rgba(0, 0, 0, .3);
    display: none;
  }

  .ims-overlay.active {
    display: block;
  }

  .ims-main {
    grid-column: 1;
  }
}

/* No double scroll */
html,
body {
  overflow: hidden;
}

.ims-main {
  overflow-y: auto;
}


/* Brand tweaks */
.ims-header .brand-name {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: .5px;
}

@media (min-width: 1024px) {
  .ims-header img {
    height: 28px;
    width: 28px;
  }

  .ims-header .brand-name {
    font-size: 1.2rem;
  }
}

.ims-header .brand {
  display: inline-flex;
  align-items: center;
  gap: 1px;
}

.ims-header .brand svg {
  width: 30px;
  height: 30px
}

.ims-header .brand-name {
  font-weight: 600;
  letter-spacing: .4px
}


/* Graphiques: égaliser la hauteur Top5 / Dormants */
.ims-charts-row {
  align-items: stretch;
}

/* étire les colonnes */
.ims-charts-row .card {
  height: 100%;
}

/* cartes pleine hauteur */
.ims-chart-body {
  height: 340px;
}

/* hauteur commune (ajuste 320–380 si besoin) */
.ims-chart-canvas {
  width: 100% !important;
  height: 100% !important;
}

.filters-bar {
  position: sticky;
  top: 0;
  z-index: 3;
  background: #fff;
}