/* ================ */
/* CSS Variables */
/* ================ */
:root {
    /* Primary Colors */
    --primary: #6f42c1;
    --primary-rgb: 193, 66, 111;
    --secondary: #5a32a8;
    --secondary-rgb: 168, 50, 90;
    --darker: var(--secondary);
    --primary-color: var(--primary);
    --primary-dark: var(--darker);
    --purple: var(--secondary);

    /* Status Colors */
    --success: #198754;
    --success-rgb: 25, 135, 84;
    --success-color: #28a745;
    --info: #0dcaf0;
    --info-rgb: 13, 202, 240;
    --warning: #ffc107;
    --warning-rgb: 255, 193, 7;
    --danger: #dc3545;
    --danger-rgb: 220, 53, 69;
    --danger-color: var(--danger);
    --danger-dark: #bb2d3b;

    /* Neutral Colors */
    --light: #f8f9fa;
    --light-rgb: 248, 249, 250;
    --dark: #212529;
    --dark-rgb: 33, 37, 41;
    --white: #fff;
    --white-rgb: 255, 255, 255;
    --black: #000;
    --black-rgb: 0, 0, 0;
    --gray: #6c757d;
    --gray-dark: #343a40;

    /* Gray Scale */
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;

    /* Application Colors */
    --body-color-rgb: 33, 37, 41;
    --body-bg-rgb: 255, 255, 255;
    --light-bg: var(--gray-100);
    --light-border: var(--gray-300);
    --text-dark: var(--gray-900);
}

/* ================ */
/* Base Styles */
/* ================ */
html, body {
  height: 100%;
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--light-bg);
  padding-top: 60px;
}

.bg-darker-gray {
  background-color: var(--gray-300) !important;
  width: 20%;
}

.main-content {
  padding-bottom: 20px;
}

/* ================ */
/* Typography */
/* ================ */
.text-purple {
  color: var(--primary-color);
  font-size: 30px;
}

.detail-label {
  color: var(--gray);
  font-weight: 500;
}

.total-amount {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--success-color);
}

.receipt-number {
  font-family: 'Courier New', monospace;
  font-weight: bold;
  color: var(--primary-color);
}

/* ================ */
/* Layout Components */
/* ================ */

/* Navbar */
.navbar {
  background-color: var(--primary-color);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar-brand, .nav-link {
  color: var(--white) !important;
}

.nav-link:hover, .nav-link.active {
  background-color: var(--primary-dark) !important;
  border-radius: 6px;
}

.navbar-collapse {
  background-color: var(--primary-color);
  padding: 10px;
  border-radius: 0 0 8px 8px;
}

/* Cards */
.card {
  border: none;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  margin-bottom: 20px;
}

.card-header {
  background-color: var(--light-bg) !important;
  border-bottom: 1px solid var(--light-border) !important;
}

.card-header h2 {
  color: var(--text-dark) !important;
  font-weight: 600;
}

/* Special Card Styles */
.card-analytics-1 { border-left: 4px solid #4e73df; }
.card-analytics-2 { border-left: 4px solid #1cc88a; }
.card-analytics-3 { border-left: 4px solid #36b9cc; }
.card-analytics-4 { border-left: 4px solid #f6c23e; }
.report-card, .payment-card, .admin-card, 
.export-card, .import-card, .student-card {
  border-left: 4px solid var(--primary-color);
}

/* Tables */
.table th {
  background-color: var(--primary-color);
  color: var(--white);
}

/* Footer */
footer {
  background-color: var(--primary-color) !important;
  color: var(--white);
  margin-top: 3rem;
  padding: 1rem 0;
  text-align: center;
}

/* ================ */
/* Form Components */
/* ================ */
.form-control {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--light-border);
  transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.25rem rgba(166, 76, 166, 0.25);
}

.input-group-text {
  padding: 0 1rem;
}

/* ================ */
/* Interactive Components */
/* ================ */

/* Buttons */
.btn {
  border-radius: 8px;
  font-weight: 500;
  transition: all 0.2s ease;
}

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

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

/* Dropdowns */
.dropdown-menu {
  border: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  padding: 8px 0;
}

.dropdown-item {
  padding: 8px 16px;
  color: var(--text-dark);
}

.dropdown-item:hover, .dropdown-item:focus {
  background-color: var(--light-bg);
  color: var(--primary-dark);
}

.dropdown-item.active {
  background-color: var(--primary-color);
  color: var(--white);
}

.dropdown-toggle::after {
  margin-left: 8px;
  vertical-align: middle;
}

/* Action Buttons */
.action-btns {
  white-space: nowrap;
}

/* Export Options */
.export-option {
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 15px;
  background-color: var(--light-bg);
  border: 1px solid var(--light-border);
  transition: all 0.3s ease;
}

.export-option:hover {
  background-color: var(--gray-200);
  transform: translateY(-2px);
}

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

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

/* Alerts */
.alert-info {
  background-color: #e9d5e9;
  border-color: var(--light-border);
  color: var(--text-dark);
}

/* ================ */
/* Utility Components */
/* ================ */

/* Loading Indicator */
.loading {
  position: relative;
}

.loading:after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255,255,255,0.7);
  z-index: 1000;
}

.loading:before {
  content: "Loading...";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1001;
  color: var(--primary-color);
  font-weight: bold;
}

/* DataTables */
.dataTables_wrapper .dataTables_paginate .paginate_button {
  border-radius: 8px !important;
  margin: 0 3px;
  padding: 6px 12px !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current,
.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
  background: var(--primary-dark) !important;
  color: var(--white) !important;
  border: none !important;
}

.dataTables_wrapper .dataTables_filter input {
  border-radius: 8px;
  padding: 8px 12px;
  border: 1px solid #ddd;
}

div.dataTables_wrapper div.dataTables_length select {
  width: 75px;
}

.dataTables_filter {
  padding-bottom: 10px;
}

/* ================ */
/* Page Specific Styles */
/* ================ */

/* Login Page */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 90vh;
  padding: 1rem;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.login-card {
  width: 100%;
  max-width: 420px;
  margin-top: -30px;
  transition: all 0.3s ease;
}

.login-card:hover {
  transform: translateY(-2px);
}

.login-card .card {
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(93, 41, 93, 0.15);
}

.login-card .card-header {
  padding: 1.5rem;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--white);
  font-weight: 600;
  border-bottom: none;
}

.login-card .card-body {
  padding: 2rem;
}

.login-card .brand-logo {
  font-size: 1.8rem;
  letter-spacing: 0.5px;
}

.login-card .login-title {
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 1.5rem;
  position: relative;
}

.login-card .login-title:after {
  content: '';
  display: block;
  width: 50px;
  height: 3px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  margin: 0.75rem auto 0;
  border-radius: 3px;
}

.login-card .btn-login {
  padding: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-size: 0.9rem;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  border: none;
}

/* Report Printing */
body.report-printing {
  font-family: Arial, sans-serif;
  margin: 0.5in;
  padding: 0;
  background: none;
  color: var(--text-dark);
  font-size: 12px;
  line-height: 1.4;
}

body.report-printing .header {
  text-align: center;
  margin-bottom: 20px;
  page-break-after: avoid;
  page-break-before: avoid;
}

body.report-printing .header h1 {
  color: var(--text-dark);
  margin-bottom: 5px;
  font-size: 18px;
}

body.report-printing .header p {
  color: var(--gray-600);
  margin-top: 0;
  font-size: 14px;
}

body.report-printing table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 15px;
  font-size: 12px;
  page-break-inside:auto;
}

body.report-printing th {
  background-color: var(--primary-color);
  color: var(--white);
  text-align: left;
  padding: 8px;
  -webkit-print-color-adjust: exact;
  print-color-adjust: exact;
}

body.report-printing td {
  padding: 8px;
  border-bottom: 1px solid var(--light-border);
}

body.report-printing .footer {
  margin-top: 20px;
  font-size: 12px;
  text-align: right;
  color: var(--gray-600);
  page-break-before: avoid;
}

body.report-printing .amount-column { 
  text-align: right;
}

body.report-printing .totals {
  margin-top: 20px;
  font-weight: bold;
  border-top: 2px solid var(--gray-800);
  padding-top: 10px;
  page-break-inside: avoid;
}

body.report-printing .total-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 5px;
}

body.report-printing .total-label {
  font-weight: bold;
}

body.report-printing .total-value {
  font-weight: normal;
}

body.report-printing .badge {
  padding: 3px 6px;
  border-radius: 3px;
  font-size: 11px;
}

body.report-printing .paid {
  background-color: var(--success);
  color: var(--white);
  -webkit-print-color-adjust: exact;
  print-color-adjust: exact;
}

body.report-printing .unpaid {
  background-color: var(--danger-color);
  color: var(--white);
  -webkit-print-color-adjust: exact;
  print-color-adjust: exact;
}

/* Receipt Printing */
body.receipt-printing {
  all: initial;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  padding: 0 !important;
  margin: 0 !important;
  background-color: var(--light-bg) !important;
  line-height: 1.4 !important;
  color: var(--gray-800) !important;
  font-size: 13px !important;
}

body.receipt-printing .receipt-container {
  width: 100%;
  max-width: 148mm;
  margin: 0 auto;
  background-color: var(--white);
  padding: 10px 15px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(var(--black-rgb), 0.08);
  border-top: 3px solid var(--secondary);
}

body.receipt-printing .receipt-header {
  text-align: center;
  margin-bottom: 15px;
  border-bottom: 1px solid var(--light-border);
  padding-bottom: 10px;
}

body.receipt-printing .receipt-title {
  font-size: 22px !important;
  font-weight: bold;
  margin: 8px 0;
}

body.receipt-printing .receipt-number {
  font-size: 12px !important;
  color: var(--gray-600);
  margin-top: 3px;
}

body.receipt-printing .receipt-body {
  margin-bottom: 15px;
}

body.receipt-printing .receipt-section {
  margin-bottom: 12px;
}

body.receipt-printing .receipt-section h3 {
  color: var(--darker);
  border-bottom: 1px solid var(--light-border);
  padding-bottom: 3px;
  margin-bottom: 10px;
  font-size: 14px !important;
}

body.receipt-printing .receipt-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
  font-size: 12px !important;
}

body.receipt-printing .receipt-label {
  font-weight: 600;
  color: var(--darker);
  width: 40%;
}

body.receipt-printing .receipt-value {
  width: 60%;
  text-align: right;
}

body.receipt-printing .receipt-payment {
  background-color: var(--light-bg);
  padding: 10px;
  border-radius: 6px;
  margin-top: 12px;
}

body.receipt-printing .receipt-total {
  font-size: 14px !important;
  font-weight: bold;
  color: var(--secondary);
  text-align: right;
  margin-top: 10px;
  border-top: 1px solid var(--light-border);
  padding-top: 10px;
}

body.receipt-printing .receipt-footer {
  text-align: center;
  margin-top: 20px;
  font-size: 11px !important;
  color: var(--gray-600);
  border-top: 1px solid var(--light-border);
  padding-top: 12px;
}

body.receipt-printing .receipt-signature {
  margin-top: 100px;
  display: flex;
  justify-content: space-between;
  font-size: 11px !important;
}

body.receipt-printing .signature-line {
  width: 45%;
  border-top: 1px solid var(--gray-800);
  padding-top: 3px;
  text-align: center;
}

body.receipt-printing .print-button {
  background-color: var(--secondary);
  color: var(--white);
  border: none;
  padding: 8px 16px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px !important;
  margin-top: 15px;
}

body.receipt-printing .print-button:hover {
  background-color: var(--darker);
}

body.receipt-printing .print-section {
  text-align: center;
  margin-top: 20px;
}

/* ================ */
/* Print Styles */
/* ================ */
@media print {
  body { 
    padding-top: 0;
    background: none;
  }
  
  .navbar, .card-body .btn-group, .dataTables_length, 
  .dataTables_filter, .dataTables_paginate, #totalAmount, 
  .modal, .alert, .card-body hr, .card-body .form-label, 
  .danger-zone-btn {
    display: none !important;
  }
  
  .card-body { 
    padding: 0 !important; 
  }
  
  .table thead th {
    background-color: var(--gray-800) !important;
    color: var(--white) !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  
  .table { 
    font-size: 10pt; 
  }
  
  .badge {
    border: 1px solid var(--black);
    color: var(--black) !important;
    background-color: transparent !important;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid var(--light-border);
  }

  /* Report Printing */
  body.report-printing {
    margin: 0;
    padding: 5mm;
  }
  
  body.report-printing .no-print {
    display: none !important;
  }
  
  @page {
    size: auto;
    margin: 5mm;
  }

  /* Receipt Printing */
  body.receipt-printing {
    background-color: var(--white) !important;
    padding: 0 !important;
    margin: 0 !important;
    width: 148mm !important;
    height: 210mm !important;
  }
  
  body.receipt-printing .receipt-container {
    box-shadow: none !important;
    border: none !important;
    padding: 8px 10px !important;
    margin: 0 auto !important;
    width: 138mm !important;
    max-width: 138mm !important;
    border-radius: 0 !important;
    page-break-after: avoid;
    page-break-inside: avoid;
  }
  
  body.receipt-printing .print-section {
    display: none !important;
  }
  
  body.receipt-printing .receipt-header,
  body.receipt-printing .receipt-body,
  body.receipt-printing .receipt-footer {
    margin-bottom: 10px !important;
  }
  
  body.receipt-printing .receipt-section {
    margin-bottom: 8px !important;
  }
  
  body.receipt-printing .receipt-signature {
    margin-top: 100px !important;
  }
  
  body.receipt-printing {
    font-size: 12px !important;
  }
  
  body.receipt-printing .receipt-title {
    font-size: 16px !important;
  }
  
  body.receipt-printing .receipt-total {
    font-size: 13px !important;
  }
}

/* ================ */
/* Responsive Styles */
/* ================ */
@media (max-width: 576px) {
  .login-card {
    max-width: 95%;
  }
  
  .login-card .brand-logo {
    font-size: 1.5rem;
  }
  
  .login-card .card-body {
    padding: 1.5rem;
  }
}

/* ================ */
/* Animations */
/* ================ */
@keyframes fadeIn {
  from { 
    opacity: 0; 
    transform: translateY(20px); 
  }
  to { 
    opacity: 1; 
    transform: translateY(0); 
  }
}

.fade-in {
  animation: fadeIn 0.5s ease-out forwards;
}



/* Custom styles for better tab visibility */
.nav-tabs .nav-link {
  color: white !important; /* Bootstrap text-muted color */
  border: 1px solid transparent;
  border-bottom: none;
  background-color: var(--primary) !important;
}

.nav-tabs .nav-link:hover {
  border-color: #e9ecef #e9ecef #dee2e6 !important;
}

.nav-tabs .nav-link.active {
  color: white !important;
  background-color: var(--secondary) !important;
}