/* Modern Dark Theme for PyCashFlow */
/* CSS Variables for easy theming */
:root {
  /* Color Palette */
  --primary-dark: #1e293b;      /* slate-800 */
  --secondary-dark: #0f172a;    /* slate-900 */
  --surface: #334155;           /* slate-700 */
  --surface-light: #475569;     /* slate-600 */

  --accent: #3b82f6;            /* blue-500 */
  --accent-hover: #2563eb;      /* blue-600 */
  --accent-light: #60a5fa;      /* blue-400 */

  --success: #10b981;           /* green-500 */
  --success-hover: #059669;     /* green-600 */

  --danger: #ef4444;            /* red-500 */
  --danger-hover: #dc2626;      /* red-600 */

  --warning: #f59e0b;           /* amber-500 */
  --warning-hover: #d97706;     /* amber-600 */

  --text-primary: #f1f5f9;      /* slate-100 */
  --text-secondary: #cbd5e1;    /* slate-300 */
  --text-muted: #94a3b8;        /* slate-400 */

  --border: #475569;            /* slate-600 */
  --border-light: #64748b;      /* slate-500 */

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

* {
  box-sizing: border-box;
}

html {
  height: 100%;
}

body {
  font-family: 'Inter', 'Segoe UI', 'Open Sans', sans-serif;
  line-height: 1.6;
  font-size: 16px;
  background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--primary-dark) 100%);
  background-attachment: fixed;
  color: var(--text-primary);
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Improved Navigation */
.navbar-improved {
  background-color: var(--secondary-dark);
  box-shadow: var(--shadow-md);
  padding: 0.75rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.navbar-improved .brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-improved .nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-improved .nav-link:hover {
  background-color: var(--surface);
  color: var(--text-primary);
}

.navbar-improved .nav-link.active {
  background-color: var(--accent);
  color: white;
}

/* Hamburger Toggle Button (Mobile) */
.navbar-toggler {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 1.25rem;
  transition: all 0.2s ease;
}

.navbar-toggler:hover {
  background-color: var(--surface);
  border-color: var(--accent);
  color: var(--accent);
}

.navbar-toggler:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Desktop Navigation Container */
.navbar-nav-container {
  display: flex;
  gap: 0.25rem;
  align-items: center;
}

/* Make navbar collapsible responsive */
.navbar-collapse {
  flex-basis: 100%;
  flex-grow: 1;
  align-items: center;
}

/* Desktop: Always show navigation (override Bootstrap collapse) */
@media (min-width: 1281px) {
  .navbar-collapse {
    display: flex !important;
    justify-content: flex-end;
  }

  .navbar-toggler {
    display: none !important;
  }
}

/* Mobile and Tablet Navigation Styles (includes iPads and landscape tablets) */
@media (max-width: 1280px) {
  .navbar-toggler {
    display: block;
  }

  .navbar-collapse {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--secondary-dark);
    border-top: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-md);
    margin-top: 1px;
    max-height: calc(100vh - 80px);
    overflow-y: auto;
  }

  .navbar-collapse.show {
    display: block !important;
  }

  .navbar-nav-container {
    flex-direction: column;
    gap: 0.25rem;
    width: 100%;
  }

  .navbar-improved .nav-link {
    width: 100%;
    padding: 0.75rem 1rem;
    justify-content: flex-start;
  }
}

/* Landscape Mobile and Tablet Optimization */
@media (max-width: 1280px) and (orientation: landscape) {
  /* Compact navbar for landscape */
  .navbar-improved {
    padding: 0.5rem 1rem;
  }

  .navbar-improved .brand {
    font-size: 1.25rem;
  }

  /* Reduce container padding */
  .container-modern {
    padding: var(--spacing-md) var(--spacing-sm);
  }

  /* Compact navigation links */
  .navbar-improved .nav-link {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
  }

  /* More compact collapse menu */
  .navbar-collapse {
    padding: var(--spacing-sm);
    max-height: calc(100vh - 60px);
  }

  .navbar-nav-container {
    gap: 0.125rem;
  }

  /* Reduce page header size */
  .page-header {
    margin-bottom: var(--spacing-md);
  }

  .page-title {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
  }

  .page-subtitle {
    font-size: 0.875rem;
  }

  /* Compact metric cards */
  .metric-card {
    padding: var(--spacing-md);
  }

  .metric-value {
    font-size: 1.5rem;
  }

  /* Compact table cards */
  .table-card {
    font-size: 0.875rem;
  }

  .table-header {
    padding: var(--spacing-md);
  }

  table.modern-table th,
  table.modern-table td {
    padding: 0.5rem;
    font-size: 0.875rem;
  }
}

/* Metric Cards */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  width: 100%;
}

.metric-card {
  background: linear-gradient(135deg, var(--surface) 0%, var(--primary-dark) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

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

.metric-card.highlight {
  border: 2px solid var(--accent);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, var(--primary-dark) 100%);
}

.metric-card.warning {
  border: 2px solid var(--warning);
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.1) 0%, var(--primary-dark) 100%);
}

.metric-label {
  font-size: 0.875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.metric-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.2;
}

.metric-sublabel {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.metric-action {
  margin-top: var(--spacing-md);
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.875rem;
  transition: all 0.2s ease;
  width: 100%;
}

.metric-action:hover {
  background-color: var(--accent);
  border-color: var(--accent);
  color: white;
}

/* Chart Card */
.chart-card {
  background-color: var(--primary-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  margin-bottom: var(--spacing-xl);
  width: 100%;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border);
  background-color: var(--surface);
}

.chart-header h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.chart-controls {
  display: flex;
  gap: var(--spacing-sm);
}

.chart-body {
  padding: var(--spacing-lg);
}

/* Improved Tables */
.table-card {
  background-color: var(--primary-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  width: 100%;
}

.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border);
  background-color: var(--surface);
}

.table-header h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.table-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.table-responsive {
  overflow-x: auto;
}

table.modern-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 0;
}

table.modern-table thead {
  background-color: var(--surface);
  position: sticky;
  top: 0;
}

table.modern-table th {
  padding: var(--spacing-md);
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 2px solid var(--border);
}

table.modern-table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background-color 0.2s ease;
}

table.modern-table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.03);
}

table.modern-table td {
  padding: var(--spacing-md);
  color: var(--text-primary);
}

/* Improved Buttons */
.btn-modern {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.875rem;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.btn-modern:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.btn-primary-modern:hover:not(:disabled) {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-success-modern:hover:not(:disabled) {
  background-color: var(--success-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-danger-modern:hover:not(:disabled) {
  background-color: var(--danger-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-warning-modern:hover:not(:disabled) {
  background-color: var(--warning-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-outline-modern:hover:not(:disabled) {
  background-color: var(--surface);
  border-color: var(--border-light);
  color: var(--text-primary);
}

.btn-icon {
  padding: 0.5rem;
  width: 2.5rem;
  height: 2.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Improved Modals */
.modal-modern .modal-content {
  background-color: var(--primary-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.modal-modern .modal-header {
  background-color: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: var(--spacing-lg);
}

.modal-modern .modal-title {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1.25rem;
}

.modal-modern .modal-body {
  padding: var(--spacing-lg);
}

.modal-modern .modal-footer {
  background-color: var(--surface);
  border-top: 1px solid var(--border);
  padding: var(--spacing-lg);
}

/* iOS Safari Modal Fixes */
/* Fix for iOS Safari modal scroll-locking and freezing issues */
.modal {
  /* Prevent touch events from passing through on iOS */
  -webkit-overflow-scrolling: touch;
}

.modal-backdrop {
  /* Ensure backdrop captures touch events on iOS */
  touch-action: none;
}

.modal-dialog {
  /* Enable smooth scrolling for modal content on iOS */
  -webkit-overflow-scrolling: touch;
}

.modal-body {
  /* Enable smooth scrolling within modal body on iOS */
  -webkit-overflow-scrolling: touch;
  /* Ensure proper touch handling */
  touch-action: pan-y;
}

/* Prevent body scroll on iOS when modal is open */
body.modal-open {
  /* Fix iOS body scroll issue */
  position: fixed;
  width: 100%;
  overflow: hidden;
  /* Prevent rubber-band scrolling on iOS */
  overscroll-behavior: none;
  -webkit-overflow-scrolling: auto;
}

/* Prevent iOS Safari from scrolling body behind modal */
@supports (-webkit-touch-callout: none) {
  /* iOS-specific: prevent background scroll */
  body.modal-open {
    position: fixed;
    width: 100%;
    height: 100%;
    overflow: hidden;
  }

  /* Ensure modal content is still scrollable */
  .modal-open .modal {
    overflow-x: hidden;
    overflow-y: auto;
  }
}

/* Form Improvements */
.form-group-modern {
  margin-bottom: var(--spacing-lg);
}

.form-label-modern {
  display: block;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  font-size: 0.875rem;
}

.form-control-modern {
  width: 100%;
  padding: 0.625rem 0.875rem;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all 0.2s ease;
}

.form-control-modern:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-control-modern::placeholder {
  color: var(--text-muted);
}

/* Badge System */
.badge-modern {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.025em;
  white-space: nowrap;
}

.badge-income {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-expense {
  background-color: rgba(239, 68, 68, 0.15);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-frequency {
  background-color: rgba(59, 130, 246, 0.15);
  color: var(--accent);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.badge-admin {
  background-color: rgba(139, 92, 246, 0.15);
  color: #a78bfa;
  border: 1px solid rgba(139, 92, 246, 0.3);
}

.badge-user {
  background-color: rgba(59, 130, 246, 0.15);
  color: var(--accent-light);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

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

.bg-dark { background-color: var(--primary-dark) !important; }
.bg-darker { background-color: var(--secondary-dark) !important; }
.bg-surface { background-color: var(--surface) !important; }

.container-modern {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-lg);
  width: 100%;
  flex: 1;
}

.page-header {
  margin-bottom: var(--spacing-xl);
}

.page-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 var(--spacing-sm) 0;
}

.page-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin: 0;
}

/* Loading States */
.loading-spinner {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spinner 0.6s linear infinite;
}

@keyframes spinner {
  to { transform: rotate(360deg); }
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: 9999;
}

.toast-modern {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  box-shadow: var(--shadow-lg);
  min-width: 300px;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.toast-modern.success {
  border-left: 4px solid var(--success);
}

.toast-modern.error {
  border-left: 4px solid var(--danger);
}

.toast-modern.warning {
  border-left: 4px solid var(--warning);
}

/* Refresh Button Animation */
.refresh-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
}

.refresh-btn:hover:not(:disabled) {
  background-color: var(--surface);
  border-color: var(--accent);
  color: var(--accent);
}

.refresh-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.refresh-icon {
  transition: transform 0.6s ease;
}

.refresh-btn.loading .refresh-icon {
  animation: rotate 1s linear infinite;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Responsive Design - Tablets and Mobile */
@media (max-width: 1280px) {
  .container-modern {
    padding: var(--spacing-md);
  }

  .metric-value {
    font-size: 1.75rem;
  }

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

  .table-header {
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: flex-start;
  }

  .table-actions {
    width: 100%;
    flex-wrap: wrap;
  }
}

/* Tablet Portrait - 2 column grid */
@media (min-width: 600px) and (max-width: 1280px) {
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile - 1 column grid */
@media (max-width: 599px) {
  .metrics-grid {
    grid-template-columns: 1fr;
  }
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus visible for keyboard navigation */
*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}