:root {
  --dpd-blue: #0d6efd;
  --dpd-blue-dark: #084298;
  --dpd-blue-soft: #e7f1ff;
  --dpd-bg: #eef2f7;
  --dpd-surface: #ffffff;
  --dpd-border: #d7dee8;
  --dpd-text: #172033;
  --dpd-muted: #667085;
  --dpd-shadow: 0 10px 28px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  background: var(--dpd-bg) !important;
  color: var(--dpd-text);
  font-family: Arial, sans-serif;
  min-height: 100vh;
  margin: 0;
}

.sidebar {
  width: 240px !important;
  background: #0d6efd !important;
  padding: 18px 12px !important;
  box-shadow: 6px 0 22px rgba(13, 110, 253, 0.22);
  overflow-y: auto;
  position: fixed !important;
  inset: 0 auto 0 0 !important;
  color: #fff !important;
  height: 100vh !important;
}

.sidebar h2 {
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  color: #fff;
  font-size: 1.25rem !important;
  font-weight: 800;
  letter-spacing: .04em;
  margin: 0 0 16px !important;
  padding: 14px 12px;
  text-align: center;
}

.sidebar-nav {
  display: grid !important;
  gap: 8px !important;
  padding: 0 0 18px !important;
}

.sidebar a {
  align-items: center;
  background: rgba(255,255,255,0.12) !important;
  border: 1px solid rgba(255,255,255,0.24) !important;
  border-radius: 8px !important;
  color: white !important;
  display: flex !important;
  font-weight: 650;
  line-height: 1.2;
  min-height: 46px;
  padding: 11px 13px !important;
  text-decoration: none !important;
  transition: background .18s ease, border-color .18s ease, transform .18s ease;
}

.sidebar a:hover,
.sidebar a.active {
  background: #ffffff !important;
  border-color: #ffffff !important;
  color: var(--dpd-blue-dark) !important;
  transform: translateX(2px);
}

.content {
  position: absolute !important;
  top: 0 !important;
  left: 240px !important;
  margin-left: 0 !important;
  margin-top: 0 !important;
  padding: 34px !important;
  background: transparent !important;
  flex: 1 1 auto;
  min-height: 100vh;
  width: calc(100% - 240px) !important;
}

.content > h1,
.content .page-title,
main.content > h1 {
  color: var(--dpd-text);
  font-weight: 800;
  letter-spacing: 0;
  margin-bottom: 18px;
}

.page-header {
  align-items: flex-start;
  display: flex;
  gap: 18px;
  justify-content: space-between;
  margin-bottom: 22px;
}

.page-header h1 {
  color: var(--dpd-text);
  font-size: clamp(1.9rem, 2.6vw, 2.55rem);
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.05;
  margin: 0;
}

.page-subtitle {
  color: var(--dpd-muted);
  margin: 8px 0 0;
  max-width: 820px;
}

.page-actions,
.toolbar-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.toolbar-card {
  background: var(--dpd-surface);
  border: 1px solid var(--dpd-border);
  border-radius: 8px;
  box-shadow: var(--dpd-shadow);
  margin-bottom: 18px;
  padding: 16px;
}

.section-title {
  color: #334155;
  font-size: 1rem;
  font-weight: 800;
  margin: 22px 0 10px;
}

.metric-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  margin-bottom: 20px;
}

.metric-card {
  background: var(--dpd-surface);
  border: 1px solid var(--dpd-border);
  border-left: 6px solid var(--dpd-blue);
  border-radius: 8px;
  box-shadow: var(--dpd-shadow);
  color: inherit;
  display: block;
  padding: 18px;
  text-decoration: none;
}

.metric-card strong {
  color: var(--dpd-text);
  display: block;
  font-size: 2rem;
  line-height: 1;
}

.metric-card span {
  color: var(--dpd-muted);
  font-weight: 800;
}

.metric-card.warning {
  border-left-color: #f59f00;
  background: #fff9ed;
}

.metric-card.success {
  border-left-color: #2f9e44;
  background: #f0fff4;
}

.form-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(12, 1fr);
}

.col-2x { grid-column: span 2; }
.col-3x { grid-column: span 3; }
.col-4x { grid-column: span 4; }
.col-6x { grid-column: span 6; }
.col-12x { grid-column: span 12; }

.card,
.form-card {
  background: var(--dpd-surface) !important;
  border: 1px solid var(--dpd-border) !important;
  border-radius: 8px !important;
  box-shadow: var(--dpd-shadow) !important;
}

.form-card {
  max-width: 760px;
  padding: 24px;
}

.card-header {
  border-radius: 8px 8px 0 0 !important;
  font-weight: 800;
  background: var(--dpd-blue) !important;
  color: #fff !important;
}

.table {
  background: white;
  border-color: var(--dpd-border);
  margin-bottom: 0;
}

.table thead th,
.table-dark th {
  background: #172033 !important;
  border-color: #172033 !important;
  color: #fff !important;
}

.table-striped > tbody > tr:nth-of-type(odd) > * {
  --bs-table-accent-bg: #f8fafc;
}

.form-control,
.form-select {
  border-color: #cbd5e1;
  border-radius: 8px;
  min-height: 42px;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--dpd-blue);
  box-shadow: 0 0 0 .2rem rgba(13, 110, 253, .14);
}

.btn {
  border-radius: 8px;
  font-weight: 700;
}

.btn-primary {
  background: var(--dpd-blue);
  border-color: var(--dpd-blue);
}

.btn-primary:hover {
  background: var(--dpd-blue-dark);
  border-color: var(--dpd-blue-dark);
}

.btn-success {
  background: #2f9e44;
  border-color: #2f9e44;
}

.badge {
  border-radius: 999px;
  font-weight: 800;
}

.alert {
  border-radius: 8px;
}

.nav-tabs {
  border-bottom-color: var(--dpd-border);
}

.nav-tabs .nav-link {
  border-radius: 8px 8px 0 0;
  color: var(--dpd-muted);
  font-weight: 700;
}

.nav-tabs .nav-link.active {
  background: var(--dpd-blue) !important;
  border-color: var(--dpd-blue) !important;
  color: #fff !important;
}

.topbar {
  background: #0d6efd !important;
  box-shadow: none !important;
}

.topbar .btn {
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.12);
}

body.login-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 20%, rgba(13,110,253,.18), transparent 32%),
    linear-gradient(135deg, #eef6ff 0%, #f8fafc 55%, #e8eef7 100%) !important;
}

.login-card {
  border: 1px solid var(--dpd-border);
  border-radius: 8px;
  box-shadow: var(--dpd-shadow);
}

@media (max-width: 760px) {
  .page-header {
    display: block;
  }

  .page-actions {
    margin-top: 12px;
  }

  .form-grid > * {
    grid-column: span 12;
  }
}