:root {
  --sidebar-width: 240px;
  --sidebar-collapsed-width: 68px;
  --brand-color: #2f5233;
}

body {
  background-color: #f4f6f8;
}

#appWrapper {
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar-bg, #1f2937);
  color: var(--sidebar-text, #d1d5db);
  min-height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  overflow-x: hidden;
  overflow-y: auto;
  z-index: 1030;
  transition: width 0.25s ease, transform 0.25s ease, background 0.15s ease, color 0.15s ease;
}

.sidebar-brand {
  color: var(--sidebar-text, #fff);
  font-weight: 600;
  padding: 1.1rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sidebar .nav-link {
  color: var(--sidebar-text, #cbd5e1);
  opacity: 0.85;
  padding: 0.55rem 1.1rem;
  font-size: 0.92rem;
}

.sidebar .nav-link i {
  width: 20px;
  display: inline-block;
}

.sidebar .nav-link:hover:not(.disabled) {
  background: rgba(127,127,127,0.15);
  opacity: 1;
}

.sidebar .nav-link.disabled {
  opacity: 0.4;
}

.sidebar .nav-heading {
  padding: 0.9rem 1.1rem 0.3rem;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--sidebar-text, #6b7280);
  opacity: 0.55;
}

.main-content {
  margin-left: var(--sidebar-width);
  width: calc(100% - var(--sidebar-width));
  transition: margin-left 0.25s ease, width 0.25s ease;
}

.topbar {
  background: #fff;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid #e5e7eb;
  position: sticky;
  top: 0;
  z-index: 1020;
}

.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1f2937, #2f5233);
}

.auth-card {
  width: 100%;
  max-width: 400px;
}

/* ---- Desktop sidebar collapse/expand toggle (icon-only mode) ----
   These base rules MUST come before the max-width:991.98px media query
   below - it hides this button on mobile with display:none, and since
   both rules share equal specificity, source order decides the winner
   at that viewport (later rule wins). Base rules first, override after. */
.sidebar-collapse-toggle {
  position: fixed;
  top: 68px;
  left: var(--sidebar-width);
  transform: translateX(-50%);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid #fff;
  background: var(--brand-color);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  padding: 0;
  cursor: pointer;
  z-index: 1031;
  box-shadow: 0 1px 4px rgba(0,0,0,0.25);
  transition: left 0.25s ease, transform 0.2s ease;
}

.sidebar-collapse-toggle:hover {
  filter: brightness(1.1);
}

.sidebar-collapse-toggle.collapsed {
  left: var(--sidebar-collapsed-width);
}

.sidebar-collapse-toggle.collapsed i {
  transform: rotate(180deg);
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
}

.sidebar.collapsed .link-label,
.sidebar.collapsed .nav-heading {
  display: none;
}

.sidebar.collapsed .sidebar-brand {
  justify-content: center;
  padding-left: 0;
  padding-right: 0;
}

.sidebar.collapsed .nav-link {
  text-align: center;
  padding: 0.6rem 0;
}

.sidebar.collapsed .nav-link i {
  width: auto;
  font-size: 1.05rem;
}

@media (max-width: 991.98px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.show {
    transform: translateX(0);
  }
  .main-content {
    margin-left: 0;
    width: 100%;
  }
  .sidebar-collapse-toggle {
    display: none;
  }
}

@media (min-width: 992px) {
  .sidebar.collapsed ~ .main-content {
    margin-left: var(--sidebar-collapsed-width);
    width: calc(100% - var(--sidebar-collapsed-width));
  }

  /* Mirrors the rules above, applied via an early inline script before
     JS/DOMContentLoaded runs, so a returning user doesn't see a flash of
     the full-width sidebar for a moment on every page load. */
  html.sidebar-preload-collapsed .sidebar {
    width: var(--sidebar-collapsed-width);
  }
  html.sidebar-preload-collapsed .sidebar .link-label,
  html.sidebar-preload-collapsed .sidebar .nav-heading {
    display: none;
  }
  html.sidebar-preload-collapsed .sidebar .nav-link {
    text-align: center;
    padding: 0.6rem 0;
  }
  html.sidebar-preload-collapsed .main-content {
    margin-left: var(--sidebar-collapsed-width);
    width: calc(100% - var(--sidebar-collapsed-width));
  }
  html.sidebar-preload-collapsed .sidebar-collapse-toggle {
    left: var(--sidebar-collapsed-width);
  }
  html.sidebar-preload-collapsed .sidebar-collapse-toggle i {
    transform: rotate(180deg);
  }
}

.table-responsive {
  border-radius: 0.5rem;
  overflow: hidden;
}

.card {
  border: none;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}