:root {
  --brand-primary: #0d5c46;
  --brand-primary-dark: #093f30;
  --sidebar-width: 250px;
}

body {
  background-color: #f4f6f8;
  font-family: 'Segoe UI', Roboto, Arial, sans-serif;
  padding-top: 56px;
}

/* ---- Topbar ---- */
.topbar {
  background-color: var(--brand-primary);
  z-index: 1050;
}

/* ---- Layout ---- */
.app-wrapper {
  display: flex;
  min-height: calc(100vh - 56px);
}

.app-sidebar {
  width: var(--sidebar-width);
  background-color: #ffffff;
  border-right: 1px solid #e3e6ea;
  position: fixed;
  top: 56px;
  bottom: 0;
  left: 0;
  overflow-y: auto;
  transition: transform .2s ease;
  z-index: 1040;
}

.app-sidebar.collapsed {
  transform: translateX(-100%);
}

.sidebar-inner { padding: 1rem 0; }

.nav-header {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: #8a94a6;
  padding: .9rem 1.25rem .35rem;
  font-weight: 600;
}

.app-sidebar .nav-link {
  color: #3a3f51;
  padding: .55rem 1.25rem;
  font-size: .92rem;
  border-left: 3px solid transparent;
}

.app-sidebar .nav-link:hover {
  background-color: #f0f4f2;
  color: var(--brand-primary);
}

.app-sidebar .nav-link.active {
  background-color: #e6f2ee;
  color: var(--brand-primary);
  border-left-color: var(--brand-primary);
  font-weight: 600;
}

.app-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-width: 0;
  transition: margin-left .2s ease;
}

.app-content.expanded { margin-left: 0; }

@media (max-width: 991.98px) {
  .app-sidebar { transform: translateX(-100%); }
  .app-sidebar.show { transform: translateX(0); }
  .app-content { margin-left: 0; }
}

.app-footer {
  margin-left: var(--sidebar-width);
  background: #fff;
  border-top: 1px solid #e3e6ea;
}
@media (max-width: 991.98px) {
  .app-footer { margin-left: 0; }
}

/* ---- Cards / Widgets ---- */
.stat-card {
  border: none;
  border-radius: .6rem;
  color: #fff;
  box-shadow: 0 2px 6px rgba(0,0,0,.08);
}
.stat-card .stat-icon {
  font-size: 2.2rem;
  opacity: .55;
}
.stat-card.bg-brand { background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-dark)); }

.card { border: none; border-radius: .6rem; box-shadow: 0 1px 4px rgba(0,0,0,.06); }
.card-header { background-color: #fff; border-bottom: 1px solid #eef0f2; font-weight: 600; }

.table thead th { font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: #6b7280; border-top: none; }

.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--brand-primary), #14855f);
  padding-top: 0;
}
.auth-card { max-width: 420px; width: 100%; border-radius: .8rem; }