:root {
  --blurple: #5865f2;
  --sidebar-bg: #1e2124;
  --sidebar-width: 220px;
}

body {
  background: #2c2f33;
  color: #dcddde;
}

/* ── Sidebar ─────────────────────────────────────────────────────────────── */

.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: var(--sidebar-bg);
  border-right: 1px solid #1a1c1f;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-brand {
  color: #fff;
  padding: 0 0.25rem;
}

.sidebar .nav-link {
  color: #b9bbbe;
  border-radius: 6px;
  padding: 0.45rem 0.75rem;
  font-size: 0.9rem;
}

.sidebar .nav-link:hover {
  color: #fff;
  background: rgba(255,255,255,0.07);
}

.sidebar .nav-link.active {
  color: #fff;
  background: var(--blurple);
}

/* ── Cards ───────────────────────────────────────────────────────────────── */

.card {
  background: #36393f;
  border: 1px solid #2f3136;
  border-radius: 8px;
}

.card-header {
  background: #2f3136;
  border-bottom: 1px solid #26282c;
  font-size: 0.85rem;
  font-weight: 600;
  color: #b9bbbe;
  padding: 0.6rem 1rem;
}

.stat-card {
  background: #2f3136;
}

/* ── Tables ──────────────────────────────────────────────────────────────── */

.table {
  color: #dcddde;
  --bs-table-bg: transparent;
  --bs-table-hover-bg: rgba(255,255,255,0.04);
  --bs-table-striped-bg: rgba(255,255,255,0.02);
}

.table-dark {
  --bs-table-bg: #26282c;
  --bs-table-color: #b9bbbe;
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */

.btn-blurple {
  background-color: var(--blurple);
  border-color: var(--blurple);
  color: #fff;
}

.btn-blurple:hover {
  background-color: #4752c4;
  border-color: #4752c4;
  color: #fff;
}

/* ── Alerts ──────────────────────────────────────────────────────────────── */

.alert {
  border-radius: 6px;
}

/* ── Form controls ───────────────────────────────────────────────────────── */

.form-control, .form-select {
  background-color: #40444b;
  border-color: #26282c;
  color: #dcddde;
  max-width: 100%;
  min-width: 0;
}

.form-control:focus, .form-select:focus {
  background-color: #40444b;
  border-color: var(--blurple);
  color: #dcddde;
  box-shadow: 0 0 0 0.2rem rgba(88,101,242,0.25);
}

.form-control::placeholder {
  color: #72767d;
}

/* ── Pagination ──────────────────────────────────────────────────────────── */

.page-link {
  background-color: #36393f;
  border-color: #26282c;
  color: #b9bbbe;
}

.page-link:hover {
  background-color: #40444b;
  color: #fff;
}

.page-item.active .page-link {
  background-color: var(--blurple);
  border-color: var(--blurple);
}

/* ── Heatmap ─────────────────────────────────────────────────────────────── */

.heatmap-table { border-collapse: collapse; width: 100%; }
.heatmap-table td, .heatmap-table th { padding: 0; }

/* ── Chart containers ────────────────────────────────────────────────────── */

.chart-container {
  position: relative;
  height: 300px;
  overflow: hidden;
  width: 100%;
}

.chart-container-sm {
  position: relative;
  height: 200px;
  overflow: hidden;
  width: 100%;
}

canvas {
  max-width: 100%;
}

@media (max-width: 767.98px) {
  .chart-container { height: 200px; }
  .chart-container-sm { height: 160px; }
}

/* ── Sidebar section labels & collapsible groups ─────────────────────────── */

.nav-section-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #72767d;
  text-transform: uppercase;
  padding: 0.75rem 0.75rem 0.2rem;
  list-style: none;
}

.nav-section-toggle {
  display: flex;
  align-items: center;
  width: 100%;
  background: none;
  border: none;
  padding: 0;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #72767d;
  text-transform: uppercase;
  cursor: pointer;
}

.nav-section-toggle:hover {
  color: #b9bbbe;
}

.nav-chevron {
  transition: transform 0.2s ease;
  font-size: 0.65rem;
}

.nav-section-toggle[aria-expanded="true"] .nav-chevron {
  transform: rotate(-180deg);
}

.nav-section-body {
  padding-bottom: 0.25rem;
}

/* ── Scrollbar ───────────────────────────────────────────────────────────── */

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #40444b; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #72767d; }

/* ── Mobile topbar ───────────────────────────────────────────────────────── */

#mobile-topbar {
  display: none;
  background: var(--sidebar-bg);
  border-bottom: 1px solid #1a1c1f;
  position: sticky;
  top: 0;
  z-index: 1030;
  padding: 0.6rem 1rem;
}

/* ── Mobile nav backdrop ─────────────────────────────────────────────────── */

#nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 1040;
}

/* ── Mobile breakpoint ───────────────────────────────────────────────────── */

@media (max-width: 767.98px) {
  #mobile-topbar {
    display: flex;
    align-items: center;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100dvh;
    z-index: 1045;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    overflow-y: auto;
    border-right: 1px solid #1a1c1f;
  }

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

  #nav-backdrop.show {
    display: block;
  }

  /* Tighter content padding on small screens */
  #main-content {
    padding: 1rem !important;
    min-width: 0;
    overflow-x: hidden;
  }

  /* Prevent the page itself from ever being wider than the viewport */
  html, body {
    overflow-x: hidden;
    max-width: 100%;
  }

  /* Nav-tabs: scroll horizontally instead of wrapping */
  .nav-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .nav-tabs::-webkit-scrollbar { display: none; }
  .nav-tabs .nav-item { flex-shrink: 0; }
  .nav-tabs .nav-link { white-space: nowrap; }

  /* Page headers: stack heading above buttons when they'd be too cramped */
  .page-header {
    flex-wrap: wrap;
    gap: 0.4rem 0;
  }

  .page-header > h1,
  .page-header > h2,
  .page-header > h3,
  .page-header > h4,
  .page-header > h5,
  .page-header > span {
    min-width: 0;
    word-break: break-word;
  }
}