/* ==========================================================================
   NodeFlow Framework Modern CSS Theme (Premium Dark Slate & Glassmorphism)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-card: rgba(31, 41, 55, 0.6);
  --border-color: rgba(255, 255, 255, 0.08);
  
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;

  --color-brand: #0ea5e9;
  --color-brand-hover: #38bdf8;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #f43f5e;
  
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-premium: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --glass-backdrop: blur(12px);
}

/* Reset and Global Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(14, 165, 233, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(16, 185, 129, 0.05) 0%, transparent 40%);
  background-attachment: fixed;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: #374151;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #4b5563;
}

/* Layout Utilities */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  /* Animation disabled to optimize perceived page speed and eliminate loading layout shifts */
}

/* Navigation Header */
.navbar {
  background-color: rgba(17, 24, 39, 0.75);
  backdrop-filter: var(--glass-backdrop);
  -webkit-backdrop-filter: var(--glass-backdrop);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  height: 70px;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon {
  background: linear-gradient(135deg, var(--color-brand), var(--color-success));
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #fff;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(to right, #fff, var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition-smooth);
  padding: 0.5rem 0.8rem;
  border-radius: 6px;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.05);
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  border-left: 1px solid var(--border-color);
  padding-left: 1.5rem;
}

.user-badge {
  background: rgba(14, 165, 233, 0.1);
  color: var(--color-brand);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

/* Premium Button Styling */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 550;
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-primary {
  background-color: var(--color-brand);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--color-brand-hover);
  transform: translateY(-1px);
}

.btn-danger {
  background-color: rgba(244, 63, 94, 0.1);
  color: var(--color-danger);
  border: 1px solid rgba(244, 63, 94, 0.2);
}

.btn-danger:hover {
  background-color: var(--color-danger);
  color: #fff;
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

/* Premium Card Designs */
.card {
  background-color: var(--bg-card);
  backdrop-filter: var(--glass-backdrop);
  -webkit-backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: var(--shadow-premium);
  transition: var(--transition-smooth);
}

.card:hover {
  border-color: rgba(14, 165, 233, 0.25);
  transform: translateY(-2px);
}

/* Dashboard Statistics Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

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

.stat-title {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -1px;
}

.stat-card.brand .stat-value { color: var(--color-brand); }
.stat-card.success .stat-value { color: var(--color-success); }
.stat-card.warning .stat-value { color: var(--color-warning); }

/* Forms & Inputs */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-control {
  background-color: var(--input-bg, rgba(17, 24, 39, 0.8)) !important;
  border: 1px solid var(--input-border, var(--border-color)) !important;
  border-radius: 8px;
  color: var(--text-main, var(--text-primary)) !important;
  padding: 0.65rem 0.9rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  transition: var(--transition-smooth);
  width: 100%;
}

.form-control:focus {
  outline: none !important;
  color: var(--text-main, #ffffff) !important;
  background-color: var(--input-focus-bg, rgba(15, 23, 42, 0.85)) !important;
  border-color: var(--color-brand) !important;
  box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.2) !important;
}

.form-control::placeholder {
  color: rgba(148, 163, 184, 0.65) !important;
  opacity: 1 !important;
}

/* Elegant Data Table */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

/* Global Bootstrap Table Dark-Mode Integration Overrides */
.table {
  --bs-table-bg: transparent !important;
  --bs-table-hover-bg: rgba(255, 255, 255, 0.02) !important;
  --bs-table-color: #f3f4f6 !important;
  background-color: transparent !important;
  color: #f3f4f6 !important;
}

.table th, .table td {
  background-color: transparent !important;
  color: #f3f4f6 !important;
  border-color: rgba(255, 255, 255, 0.05) !important;
}

.table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.02) !important;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.data-table th {
  background-color: rgba(17, 24, 39, 0.9);
  color: var(--text-secondary);
  font-weight: 600;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
}

.data-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

.data-table tbody tr {
  transition: var(--transition-smooth);
}

.data-table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

.badge {
  display: inline-flex;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-blue { background-color: rgba(14, 165, 233, 0.15); color: var(--color-brand); }
.badge-green { background-color: rgba(16, 185, 129, 0.15); color: var(--color-success); }
.badge-red { background-color: rgba(244, 63, 94, 0.15); color: var(--color-danger); }

/* Beautiful Modals (Glassmorphism Overlay) */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(3, 7, 18, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-container {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  width: 100%;
  max-width: 500px;
  box-shadow: var(--shadow-premium);
  overflow: hidden;
  animation: fadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 600;
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1.25rem 1.5rem;
  background-color: rgba(17, 24, 39, 0.4);
  border-top: 1px solid var(--border-color);
}

/* Glassmorphism Login Container */
.login-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
}

.login-card {
  width: 100%;
  max-width: 400px;
  animation: fadeIn 0.4s ease-out;
}

/* Alert Banners */
.alert {
  padding: 0.85rem 1.25rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.alert-danger {
  background-color: rgba(244, 63, 94, 0.1);
  color: var(--color-danger);
  border: 1px solid rgba(244, 63, 94, 0.15);
}

.alert-success {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  border: 1px solid rgba(16, 185, 129, 0.15);
}

/* Footer style */
footer {
  border-top: 1px solid var(--border-color);
  padding: 2rem 0;
  margin-top: 5rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  text-align: center;
}

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