/* Professional Corporate Theme for Kotty Track */

:root {
  --primary-color: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary-color: #64748b;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --info-color: #06b6d4;

  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-light: #94a3b8;

  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;

  --border-color: #e2e8f0;
  --border-light: #f1f5f9;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 18px 30px -12px rgba(15, 23, 42, 0.2);

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;

  --accent-gradient: linear-gradient(135deg, #1d4ed8 0%, #0ea5e9 100%);
  --accent-soft: rgba(37, 99, 235, 0.12);
}

/* Dark Mode Variables */
.dark-mode {
  --primary-color: #3b82f6;
  --primary-dark: #2563eb;

  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-light: #94a3b8;

  --bg-primary: #1e293b;
  --bg-secondary: #0f172a;
  --bg-tertiary: #334155;

  --border-color: #334155;
  --border-light: #475569;
}

/* Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
  background: #f4f6fb;
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.2;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

p {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Navigation */
.top-nav {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 1.5rem;
  box-shadow: var(--shadow-sm);
}

.app-navbar {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.app-navbar .navbar-brand {
  font-weight: 600;
  color: var(--text-primary);
}

.app-navbar .navbar-brand:hover {
  color: var(--primary-color);
}

.app-navbar .nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  margin-left: 0.5rem;
}

.app-navbar .nav-link.active,
.app-navbar .nav-link:hover {
  color: var(--primary-color);
}

.app-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 16px 60px;
}

.nav-brand {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-brand:hover {
  color: var(--primary-color);
}

/* Cards */
.card-custom {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-lg);
}

.surface-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.surface-card + .surface-card {
  margin-top: var(--spacing-lg);
}

.card-header-custom {
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.card-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.card-subtitle {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* Navigation Cards Grid */
.nav-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1rem;
  margin-bottom: var(--spacing-lg);
}

.nav-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem 1rem;
  text-align: center;
  text-decoration: none;
  color: var(--text-primary);
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.nav-card:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  color: var(--primary-color);
}

.nav-card i {
  font-size: 1.5rem;
  color: var(--primary-color);
}

.nav-card-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-primary);
}

.nav-card:hover .nav-card-label {
  color: var(--primary-color);
}

/* Accounts Challan UI Enhancements */
.accounts-challan-shell {
  max-width: 1240px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.accounts-challan-hero {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.accounts-challan-hero p {
  margin-bottom: 0;
}

.accounts-challan-tabs {
  margin: 20px 0 24px;
}

.accounts-challan-tabs .nav-link {
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  background: var(--bg-primary);
  font-weight: 500;
  padding: 0.5rem 0.9rem;
}

.accounts-challan-tabs .nav-link.active,
.accounts-challan-tabs .nav-link:hover {
  background: var(--primary-color);
  color: #fff;
  border-color: var(--primary-color);
}

.accounts-challan-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.accounts-challan-card .card-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  font-weight: 600;
}

.accounts-badge-soft {
  background: rgba(37, 99, 235, 0.12);
  color: var(--primary-color);
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.75rem;
}

.accounts-muted {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.page-hero {
  background: var(--accent-gradient);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 28px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-bottom: 24px;
}

.page-hero::after {
  content: '';
  position: absolute;
  top: -40%;
  right: -15%;
  width: 260px;
  height: 260px;
  background: rgba(255, 255, 255, 0.16);
  border-radius: 999px;
}

.page-hero h2,
.page-hero h1 {
  color: #fff;
}

.page-hero p {
  color: rgba(255, 255, 255, 0.85);
}

.page-hero .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-hero .hero-note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.18);
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  font-size: 0.85rem;
}

.action-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.qty-input {
  width: 110px;
  min-width: 110px;
}

.app-tabs {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  padding: 0.35rem;
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  box-shadow: var(--shadow-sm);
}

.app-tabs .nav-link {
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  border: 1px solid transparent;
}

.app-tabs .nav-link.active,
.app-tabs .nav-link:hover {
  background: var(--accent-soft);
  color: var(--primary-color);
  border-color: rgba(37, 99, 235, 0.2);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: var(--spacing-lg);
}

.stat-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}

.stat-label {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.stat-icon {
  font-size: 2rem;
  color: var(--primary-color);
  opacity: 0.2;
  float: right;
}

/* Buttons */
.btn {
  font-weight: 500;
  border-radius: var(--radius-sm);
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
}

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

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

.btn-secondary {
  background: var(--secondary-color);
  color: white;
}

.btn-secondary:hover {
  background: #475569;
}

.btn-success {
  background: var(--success-color);
  color: white;
}

.btn-success:hover {
  background: #059669;
}

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

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

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

.btn-outline-secondary:hover {
  background: var(--bg-tertiary);
  border-color: var(--secondary-color);
}

.btn-soft {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.btn-soft:hover {
  background: rgba(255, 255, 255, 0.25);
  color: #fff;
}

.icon-btn {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

/* Forms */
.form-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.375rem;
  display: block;
}

.form-control, .form-select {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: all 0.2s ease;
}

.form-control:focus, .form-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-panel {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.form-panel .form-label {
  font-weight: 600;
}

.form-section {
  background: var(--bg-secondary);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

/* Tables */
.table {
  width: 100%;
  font-size: 0.875rem;
  border-collapse: collapse;
}

.table thead th {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  padding: 0.75rem;
  border-bottom: 2px solid var(--border-color);
  text-align: left;
}

.table tbody td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-primary);
}

.table tbody tr:hover {
  background: var(--bg-secondary);
}

.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table-card .card-header {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.badge-primary { background: var(--primary-color); color: white; }
.badge-secondary { background: var(--secondary-color); color: white; }
.badge-success { background: var(--success-color); color: white; }
.badge-warning { background: var(--warning-color); color: white; }
.badge-danger { background: var(--danger-color); color: white; }
.badge-info { background: var(--info-color); color: white; }

.bg-success { background: var(--success-color) !important; }
.bg-warning { background: var(--warning-color) !important; }
.bg-danger { background: var(--danger-color) !important; }
.bg-info { background: var(--info-color) !important; }
.bg-secondary { background: var(--secondary-color) !important; }

/* Alerts */
.alert {
  padding: 0.875rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  border: 1px solid;
  margin-bottom: 1rem;
}

.alert-success {
  background: #ecfdf5;
  border-color: #a7f3d0;
  color: #065f46;
}

.alert-warning {
  background: #fffbeb;
  border-color: #fde68a;
  color: #92400e;
}

.alert-danger {
  background: #fef2f2;
  border-color: #fecaca;
  color: #991b1b;
}

.alert-info {
  background: #f0f9ff;
  border-color: #bae6fd;
  color: #075985;
}

/* Page Layout */
.page-header {
  margin-bottom: var(--spacing-lg);
}

.page-header.surface-card {
  position: relative;
  overflow: hidden;
}

.page-header.surface-card::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 240px;
  height: 240px;
  background: var(--accent-gradient);
  opacity: 0.08;
  border-radius: 999px;
}

.page-title {
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.page-subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.container-main {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

.section-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.section-card:hover {
  box-shadow: var(--shadow-md);
}

.section-header {
  background: var(--accent-gradient);
  color: #fff;
  padding: 1.5rem 2rem;
}

.section-header h4 {
  color: #fff;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.section-header small {
  color: rgba(255, 255, 255, 0.8);
}

.section-body {
  padding: 1.75rem;
}

.empty-state {
  padding: 3.5rem 2rem;
  text-align: center;
}

.empty-state i {
  font-size: 3rem;
  color: #cbd5e1;
  margin-bottom: 1rem;
}

.empty-state p {
  color: var(--text-secondary);
  font-size: 1rem;
}

.page-actions {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.search-controls {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.stat-badge {
  background: rgba(255, 255, 255, 0.2);
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 600;
  font-size: 0.85rem;
}

.badge-type {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
}

.badge-sender {
  background: rgba(16, 185, 129, 0.16);
  color: #047857;
}

.badge-consignee {
  background: rgba(59, 130, 246, 0.16);
  color: #1d4ed8;
}

/* Panels */
.panel {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.panel-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.panel-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.panel-body {
  padding: 1.25rem;
}

/* Modal Improvements */
.modal-content {
  border: none;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.modal-header {
  border-bottom: 1px solid var(--border-color);
  padding: 1.25rem;
}

.modal-body {
  padding: 1.25rem;
}

.modal-footer {
  border-top: 1px solid var(--border-color);
  padding: 1rem 1.25rem;
}

/* Loading Spinner */
.spinner-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.spinner-content {
  background: var(--bg-primary);
  padding: 2rem;
  border-radius: var(--radius-lg);
  text-align: center;
  min-width: 200px;
  box-shadow: var(--shadow-lg);
}

/* Tabulator Customization */
.tabulator {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-primary);
}

.tabulator .tabulator-header {
  background: var(--bg-secondary);
  border-bottom: 2px solid var(--border-color);
}

.tabulator .tabulator-header .tabulator-col {
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
}

.tabulator-row {
  border-bottom: 1px solid var(--border-light);
}

.tabulator-row:hover {
  background: var(--bg-secondary);
}

/* Responsive */
@media (max-width: 768px) {
  .container-main {
    padding: 1rem;
  }

  .nav-cards {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 0.75rem;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .page-title {
    font-size: 1.5rem;
  }

  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.25rem; }
  h3 { font-size: 1.125rem; }
}

@media (max-width: 480px) {
  .nav-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .btn {
    padding: 0.625rem 1rem;
    font-size: 0.8125rem;
  }
}

/* Utility Classes */
.text-muted { color: var(--text-secondary); }
.text-primary { color: var(--primary-color); }
.text-success { color: var(--success-color); }
.text-warning { color: var(--warning-color); }
.text-danger { color: var(--danger-color); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 3rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }

.d-flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.justify-content-between { justify-content: space-between; }
.align-items-center { align-items: center; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 1rem; }

/* Back to Top Button */
#backToTop {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--primary-color);
  color: white;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: all 0.3s ease;
  z-index: 1000;
}

#backToTop:hover {
  background: var(--primary-dark);
  transform: translateY(-4px);
}

/* Dark Mode Toggle */
#toggleDarkMode {
  cursor: pointer;
  transition: all 0.2s ease;
}

#toggleDarkMode:hover {
  transform: scale(1.1);
}