/* ===========================
   Premium Blue Theme (Unified)
   Brand Feel: Modern, Premium, Indian-friendly
   =========================== */

:root {
  --primary-color: #1e293b;      /* Deep slate - primary text */
  --secondary-color: #475569;    /* Muted gray - subtitles */
  --accent-color: #0ea5e9;       /* Vibrant blue - highlights, buttons */
  --accent-hover: #0284c7;       /* Slightly deeper blue */
  --success-color: #22c55e;      /* Green - success */
  --warning-color: #facc15;      /* Yellow - warnings */
  --danger-color: #ef4444;       /* Red - errors */
  --bg-light: #ffffff;           /* Card background */
  --bg-muted: #f8fafc;           /* Page background */
  --border-color: rgba(0, 0, 0, 0.08);
  --shadow-soft: 0 2px 6px rgba(0, 0, 0, 0.05);
  --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.1);
  --radius: 12px;
  --transition: all 0.25s ease;
}

/* ===========================
   Base + Typography
   =========================== */
body {
  background: var(--bg-muted);
  color: var(--primary-color);
  font-family: "Inter", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--primary-color);
  font-weight: 700;
}

.text-muted {
  color: var(--secondary-color) !important;
}

small, .small {
  font-size: 0.85rem;
  color: var(--secondary-color);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--accent-color);
}

/* ===========================
   Navbar + Sidebar
   =========================== */
.navbar {
  background: var(--bg-light);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-soft);
}

.navbar-dark {
  background: #0f172a !important;
  color: #fff;
}

.navbar-dark a {
  color: #e2e8f0 !important;
}

.navbar-dark a:hover {
  color: var(--accent-color) !important;
}

.sidebar {
  background: var(--bg-light);
  border-right: 1px solid var(--border-color);
  box-shadow: var(--shadow-soft);
  padding-bottom: 1rem;
}

.sidebar-section.sidebar-section-body {
  border-bottom: 1px solid var(--border-color);
  padding: 1rem;
}

.sidebar-section.sidebar-section-body h5 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary-color);
}

.sidebar .nav-sidebar {
  padding: 0.75rem 1rem;
}

.sidebar .nav-link {
  color: var(--secondary-color);
  font-weight: 500;
  border-radius: 8px;
  transition: var(--transition);
  display: flex;
  align-items: center;
  padding: 0.55rem 0.9rem;
}

.sidebar .nav-link i {
  font-size: 1rem;
  color: var(--secondary-color);
  transition: var(--transition);
}

.sidebar .nav-link.active {
  background: var(--accent-color);
  color: #fff;
  box-shadow: var(--shadow-soft);
  font-weight: 600;
}

.sidebar .nav-link.active i {
  color: #fff;
}

.sidebar .nav-link:hover {
  background: #f1f5f9;
  color: var(--primary-color);
}

.sidebar .nav-link:hover i {
  color: var(--accent-color);
}

/* ===========================
   Cards
   =========================== */
.card {
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.card-body h5 {
  color: var(--primary-color);
  font-weight: 700;
}

.card-footer {
  background-color: #f9fafb !important;
  border-top: 1px solid var(--border-color);
  border-bottom-left-radius: var(--radius);
  border-bottom-right-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-footer small {
  color: var(--secondary-color);
}

/* ===========================
   Badges
   =========================== */
.badge {
  border-radius: 6px;
  padding: 0.35rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 500;
}

.badge.bg-primary {
  background-color: var(--accent-color) !important;
}

.badge.bg-success {
  background-color: var(--success-color) !important;
}

.badge.bg-info {
  background-color: #bae6fd !important;
  color: #075985 !important;
}

.badge.bg-warning {
  background-color: #fde68a !important;
  color: #78350f !important;
  font-weight: 600;
}

/* ===========================
   Buttons
   =========================== */
.btn {
  border-radius: 8px;
  transition: var(--transition);
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
}

.btn-primary {
  background: var(--accent-color);
  border: none;
}

.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: var(--shadow-hover);
}

.btn-outline-primary {
  border: 1px solid var(--accent-color);
  color: var(--accent-color);
}

.btn-outline-primary:hover {
  background: var(--accent-color);
  color: #fff;
}

.btn-outline-secondary {
  border: 1px solid var(--secondary-color);
  color: var(--secondary-color);
}

.btn-outline-secondary:hover {
  background: var(--secondary-color);
  color: #fff;
}

/* ===========================
   Forms + Inputs
   =========================== */
.form-select,
.form-control {
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background-color: #fff;
  font-size: 0.9rem;
  padding: 0.45rem 0.75rem;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 0.15rem rgba(14, 165, 233, 0.2);
}

/* ===========================
   Nav Pills (Enhanced)
   =========================== */
.nav-pills {
  display: inline-flex;
  gap: 0.5rem;
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 0.4rem;
  box-shadow: var(--shadow-soft);
}

.nav-pills .nav-link {
  color: var(--secondary-color);
  font-weight: 500;
  border-radius: 8px;
  padding: 0.5rem 1.2rem;
  transition: var(--transition);
  position: relative;
  background: transparent;
}

.nav-pills .nav-link:hover {
  background: #f1f5f9;
  color: var(--primary-color);
}

.nav-pills .nav-link.active {
  background: var(--accent-color) !important;
  color: #ffffff !important;
  box-shadow: 0 4px 10px rgba(14, 165, 233, 0.25);
}

.nav-pills .nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 20%;
  right: 20%;
  height: 3px;
  border-radius: 2px;
  background-color: var(--accent-color);
}

/* ===========================
   Tables
   =========================== */
.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0 0.5rem;
}

.table thead th {
  color: var(--secondary-color);
  font-weight: 600;
  border: none;
}

.table tbody tr {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
}

.table tbody tr:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.table td, .table th {
  padding: 0.9rem 1rem;
  vertical-align: middle;
  border-top: none;
}

/* ===========================
   Alerts
   =========================== */
.alert {
  border-radius: var(--radius);
  border: none;
  padding: 1rem 1.25rem;
  font-weight: 500;
}

.alert-primary { background: #e0f2fe; color: #075985; }
.alert-success { background: #dcfce7; color: #166534; }
.alert-danger  { background: #fee2e2; color: #991b1b; }
.alert-warning { background: #fef9c3; color: #78350f; }

/* ===========================
   Modal
   =========================== */
.modal-content {
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  border: 1px solid var(--border-color);
}

.modal-header {
  border-bottom: 1px solid var(--border-color);
}

.modal-footer {
  border-top: 1px solid var(--border-color);
}

/* ===========================
   Tooltip
   =========================== */
.tooltip-inner {
  background-color: var(--accent-color);
  color: #fff;
  font-size: 0.8rem;
  border-radius: 6px;
  padding: 0.4rem 0.6rem;
}

/* ===========================
   Pagination
   =========================== */
.page-link.load-more-btn {
  color: var(--accent-color);
  border-radius: 8px;
  border: 1px solid var(--accent-color);
  transition: var(--transition);
}

.page-link.load-more-btn:hover {
  background: var(--accent-color);
  color: #fff;
}

/* ===========================
   Dropdown
   =========================== */
.dropdown-menu {
  border: 1px solid var(--border-color);
  border-radius: 10px;
  box-shadow: var(--shadow-soft);
  font-size: 0.9rem;
}

.dropdown-item:hover {
  background-color: #f1f5f9;
}

/* ===========================
   Shadows + Misc
   =========================== */
.shadow-sm { box-shadow: var(--shadow-soft) !important; }
.shadow-md { box-shadow: var(--shadow-hover) !important; }

/* ===========================
   Nav Pills (Enhanced)
   =========================== */
.nav-pills {
  display: inline-flex;
  gap: 0.5rem;
  background: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 0.4rem;
  box-shadow: var(--shadow-soft);
}

.nav-pills .nav-link {
  color: var(--secondary-color);
  font-weight: 500;
  border-radius: 8px;
  padding: 0.5rem 1.2rem;
  transition: var(--transition);
  position: relative;
  background: transparent;
}

.nav-pills .nav-link:hover {
  background: #f1f5f9;
  color: var(--primary-color);
}

.nav-pills .nav-link.active {
  background: var(--accent-color) !important;
  color: #ffffff !important;
  box-shadow: 0 4px 10px rgba(14, 165, 233, 0.25);
}

.nav-pills .nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 20%;
  right: 20%;
  height: 3px;
  border-radius: 2px;
  background-color: var(--accent-color);
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 768px) {
  .card { margin-bottom: 1rem; }

  .card-footer {
    flex-direction: column;
    gap: 0.5rem;
  }

  .navbar.bg-light {
    padding: 0.75rem 1rem;
  }

  .nav-pills {
    flex-wrap: wrap;
    gap: 0.4rem;
    padding: 0.3rem;
  }

  .nav-pills .nav-link {
    flex: 1 1 auto;
    text-align: center;
    padding: 0.5rem 0.8rem;
    font-size: 0.9rem;
  }
}