:root {
  /* Harmonious Corporate Indigo & Teal Color Palette */
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --secondary: #0d9488;
  --secondary-hover: #0f766e;
  --secondary-light: #f0fdfa;
  
  --dark: #0f172a;
  --dark-light: #1e293b;
  --light: #f8fafc;
  --border: #e2e8f0;
  
  --body-bg: #f8fafc;
  --card-bg: #ffffff;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 2px 4px -2px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
  
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
}

/* Global Reset & Typography */
body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--body-bg);
  color: var(--dark-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: var(--dark);
  letter-spacing: -0.02em;
}

h1 {
  font-size: 2.25rem;
  margin-bottom: 1.25rem;
}

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

a:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

/* Header & Navbar */
.navbar {
  background-color: rgba(255, 255, 255, 0.8) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  sticky-top: 0;
  z-index: 1020;
}

.navbar-brand img {
  transition: var(--transition);
}

.navbar-brand img:hover {
  transform: scale(1.05);
}

.navbar-nav .nav-link {
  font-weight: 600;
  color: var(--dark-light) !important;
  padding: 0.5rem 1rem !important;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.navbar-nav .nav-link:hover, 
.navbar-nav .nav-link.active {
  color: var(--primary) !important;
  background-color: var(--primary-light);
}

.navbar .form-control {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  padding: 0.45rem 1rem;
}

.navbar .form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.navbar .btn-outline-success {
  color: var(--primary);
  border-color: var(--primary);
  border-radius: var(--radius-sm);
  font-weight: 600;
  padding: 0.45rem 1.2rem;
  transition: var(--transition);
}

.navbar .btn-outline-success:hover {
  background-color: var(--primary);
  border-color: var(--primary);
  color: white;
}

/* Card Styling */
.card {
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  overflow: hidden;
}

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

.card-header {
  background: var(--light);
  border-bottom: 1px solid var(--border);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--dark);
  padding: 1rem 1.25rem;
}

.card-body {
  padding: 1.5rem;
}

/* Forms & Inputs */
.mainform {
  text-align: center;
}

.mainform.card {
  border: none !important;
  box-shadow: var(--shadow-lg) !important;
  border-radius: var(--radius-lg) !important;
  background: linear-gradient(145deg, #ffffff, #f8fafc) !important;
}

.ref-input-wrapper {
  position: relative;
}

.ref-input-wrapper i {
  position: absolute;
  top: 50%;
  left: 1.25rem;
  transform: translateY(-50%);
  color: #94a3b8;
  font-size: 1.25rem;
  z-index: 10;
  pointer-events: none;
}

.ref-input-wrapper .form-control {
  padding-left: 3rem !important;
  height: 3.5rem;
  font-size: 1.1rem;
  border-radius: var(--radius-md) !important;
  border: 2px solid var(--border) !important;
  font-family: var(--font-monospace, monospace);
  font-weight: 600;
  transition: var(--transition);
}

.ref-input-wrapper .form-control:focus {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15) !important;
}

.mainform .btn-lg {
  height: 3.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: var(--radius-md);
}

.mainform .input-group {
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.mainform .input-group-text {
  background-color: var(--light);
  border-color: var(--border);
  color: var(--dark-light);
  font-weight: 600;
}

.mainform .form-control {
  border-color: var(--border);
}

.mainform .form-control:focus {
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
  border-color: var(--primary);
  z-index: 5;
}

.mainform .alert {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem;
  margin: 0.25rem 0.35rem !important;
  background-color: var(--primary-light);
  border: 1px solid rgba(37, 99, 235, 0.15);
  color: var(--primary);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
}

.mainform .alert:hover {
  background-color: rgba(37, 99, 235, 0.08);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.mainform .alert .btn-close {
  position: static !important;
  padding: 1px !important;
  font-size: 0.65rem;
  width: 0.65rem;
  height: 0.65rem;
  background-size: contain;
}

.mainform .loader {
  display: none;
}

/* Sidebar List Group styling */
.sidebar .list-group-item {
  border: none;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.sidebar .list-group-item:last-child {
  border-bottom: none;
}

.sidebar .list-group-item a {
  color: var(--dark-light);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  text-decoration: none;
}

.sidebar .list-group-item:hover {
  background-color: var(--primary-light);
}

.sidebar .list-group-item:hover a {
  color: var(--primary);
}

/* Custom Premium Buttons */
.btn-primary {
  background-color: var(--primary);
  border: 1px solid var(--primary);
  color: white;
  font-weight: 700;
  border-radius: var(--radius-md);
  padding: 0.65rem 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-success {
  background-color: var(--secondary);
  border: 1px solid var(--secondary);
  color: white;
  font-weight: 700;
  border-radius: var(--radius-md);
  padding: 0.65rem 1.5rem;
  transition: var(--transition);
}

.btn-success:hover {
  background-color: var(--secondary-hover);
  border-color: var(--secondary-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.fullbutton {
  background-color: var(--secondary);
  border: none;
  color: white;
  padding: 0.75rem 1.75rem;
  text-align: center;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.fullbutton:hover {
  background-color: var(--secondary-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

/* Tables styling */
.table {
  border-radius: var(--radius-md);
  overflow: hidden;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--border);
}

.table th {
  background-color: var(--light);
  font-weight: 700;
  color: var(--dark);
  border-bottom: 2px solid var(--border);
  padding: 1rem;
}

.table td {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
}

.table-striped tbody tr:nth-of-type(odd) {
  background-color: rgba(248, 250, 252, 0.5);
}

/* Code layout block */
code {
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  background-color: var(--light);
  color: var(--dark-light);
  padding: 1rem;
  display: block;
}

/* Footer style */
footer.page-footer {
  background-color: var(--dark);
  color: #94a3b8;
  border-top: 1px solid var(--border);
}

footer.page-footer h6 {
  color: white;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

footer.page-footer hr {
  border-color: var(--dark-light);
  opacity: 0.15;
  margin-top: 0.5rem;
  margin-bottom: 1.5rem;
}

footer.page-footer .link-secondary {
  color: #94a3b8 !important;
  text-decoration: none;
  display: inline-block;
  margin-bottom: 0.5rem;
  transition: var(--transition);
}

footer.page-footer .link-secondary:hover {
  color: white !important;
  text-decoration: underline;
}

.footer-copyright {
  background-color: rgba(15, 23, 42, 0.6);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-weight: 500;
}

/* Layout Utilities & Spacing */
.container {
  max-width: 1200px;
}

.row.mt-4 {
  margin-top: 2rem !important;
}

.col-lg-8 {
  padding-right: 1.5rem;
}

@media (max-width: 991.98px) {
  .col-lg-8 {
    padding-right: 0.75rem;
    margin-bottom: 2rem;
  }
}

/* Custom Ad wrapper styles */
.theadd, .manualadd {
  min-height: 280px;
  background: var(--light);
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  text-align: center;

}

.theadd ins, .manualadd ins {
  display: block !important;
  width: 100% !important;
}

#loader-container {
  display: none !important;
}

@media screen and (max-width: 480px) {
  #inputGroup-sizing-lg {
    display: none;
  }
  .mainform .input-group .form-control {
    border-radius: var(--radius-md) !important;
    margin-left: 0 !important;
  }
}

/* Action Cards */
.action-card {
  border: none !important;
  box-shadow: var(--shadow-sm) !important;
  border-radius: var(--radius-md) !important;
  background-color: var(--card-bg);
  transition: var(--transition) !important;
}

.action-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md) !important;
}