:root {
  --primary: #0000CB;
  --primary-contrast: #ffffff;
  --muted-bg: #E1EAFF;
  --card-border: rgba(0,0,0,0.05);
  --accent: #0057FF;
}

body {
  background: linear-gradient(180deg, #ffffff 0%, var(--muted-bg) 100%);
  color: #1b1b1b;
}

.navbar, .card {
  border-radius: 12px;
}

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

.btn-primary:hover {
  background-color: var(--accent);
  border-color: var(--accent);
}

.card .card-title {
  color: var(--primary);
}

.table thead th {
  background: rgba(0,0,0,0.03);
}

/* Hero header */
.hero {
  padding: 2rem 1.5rem;
  background: linear-gradient(135deg, rgba(0,0,203,0.05), rgba(225,234,255,0.6));
  border-radius: 12px;
  border: 1px solid var(--card-border);
}

/* Horizontal rule accent */
.hr-accent {
  border: 0;
  height: 3px;
  background: linear-gradient(90deg, rgba(0,0,203,0.8), rgba(225,234,255,0.8));
  border-radius: 2px;
}

/* Toast position */
.toast-container {
  position: fixed;
  right: 1rem;
  top: 1rem;
  z-index: 1055;
}

/* Layout */
.main-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 260px;
  flex: 0 0 260px;
  position: sticky;
  height: calc(100vh);
  top: 0;
}

.sidebar-inner {
  overflow: auto;
}

.content {
  flex: 1;
}

/* Sidebar mobile behavior */
@media (max-width: 767px) {
  .sidebar {
    position: fixed;
    left: -280px;
    top: 0;
    bottom: 0;
    z-index: 1050;
    transition: left 0.25s ease;
  }

  .sidebar.open {
    left: 0;
  }

  .content {
    padding-top: 70px;
  }
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 1040;
}

/* Card styling */
.card {
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(33,33,33,0.06);
}