/* ===== Base Styles ===== */
:root {
  --primary-gradient: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
  --success-gradient: linear-gradient(135deg, #198754 0%, #146c43 100%);
  --danger-gradient: linear-gradient(135deg, #dc3545 0%, #b02a37 100%);
  --warning-gradient: linear-gradient(135deg, #ffc107 0%, #e0a800 100%);
  --info-gradient: linear-gradient(135deg, #0dcaf0 0%, #0aa2c0 100%);
  --card-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
  --card-shadow-hover: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
}

html {
  font-size: 14px;
  scroll-behavior: smooth;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
  background-color: #f8f9fa;
}

/* ===== Focus States ===== */
.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
  color: var(--bs-secondary-color);
  text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
  text-align: start;
}

/* ===== Card Enhancements ===== */
.card {
  border: none;
  border-radius: 0.75rem;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.card-header {
  border-radius: 0.75rem 0.75rem 0 0 !important;
  font-weight: 600;
}

/* ===== Dashboard Stat Cards ===== */
.stat-card {
  position: relative;
  overflow: hidden;
  border-radius: 1rem;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
  transform: rotate(30deg);
}

.stat-card .display-6 {
  font-weight: 700;
  letter-spacing: -0.5px;
}

.stat-card i.fa-3x {
  transition: transform var(--transition-normal);
}

.stat-card:hover i.fa-3x {
  transform: scale(1.1);
}

/* ===== Table Enhancements ===== */
.table {
  margin-bottom: 0;
}

.table th {
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #6c757d;
  border-bottom-width: 2px;
  white-space: nowrap;
}

.table tbody tr {
  transition: background-color var(--transition-fast);
}

.table-hover tbody tr:hover {
  background-color: rgba(13, 110, 253, 0.04);
}

.table tbody td {
  vertical-align: middle;
  padding: 0.875rem 0.75rem;
}

/* ===== Badge Enhancements ===== */
.badge {
  font-weight: 500;
  letter-spacing: 0.3px;
  padding: 0.4em 0.8em;
}

.badge-pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* ===== Button Enhancements ===== */
.btn {
  font-weight: 500;
  border-radius: 0.5rem;
  transition: all var(--transition-fast);
}

.btn-primary {
  background: var(--primary-gradient);
  border: none;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0a58ca 0%, #084298 100%);
  transform: translateY(-1px);
}

.btn-success {
  background: var(--success-gradient);
  border: none;
}

.btn-success:hover {
  background: linear-gradient(135deg, #146c43 0%, #0f5132 100%);
  transform: translateY(-1px);
}

.btn-outline-primary:hover,
.btn-outline-success:hover,
.btn-outline-warning:hover {
  transform: translateY(-1px);
}

/* ===== Loading Spinner ===== */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.loading-overlay.active {
  opacity: 1;
  visibility: visible;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid #f3f3f3;
  border-top: 4px solid #0d6efd;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ===== Empty State ===== */
.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
}

.empty-state i {
  font-size: 4rem;
  color: #dee2e6;
  margin-bottom: 1rem;
}

.empty-state h5 {
  color: #6c757d;
  margin-bottom: 0.5rem;
}

.empty-state p {
  color: #adb5bd;
  font-size: 0.9rem;
}

/* ===== Transaction Amount Colors ===== */
.amount-positive {
  color: #198754;
  font-weight: 600;
}

.amount-negative {
  color: #dc3545;
  font-weight: 600;
}

.amount-neutral {
  color: #0d6efd;
  font-weight: 600;
}

/* ===== Balance Display ===== */
.balance-display {
  background: var(--primary-gradient);
  color: white;
  border-radius: 1rem;
  padding: 1.5rem;
  text-align: center;
}

.balance-display .balance-amount {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -1px;
}

.balance-display .balance-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0.9;
}

/* ===== Search Input ===== */
.search-input {
  border-radius: 0.5rem;
  border: 2px solid #e9ecef;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-input:focus {
  border-color: #0d6efd;
  box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.15);
}

/* ===== Pagination ===== */
.pagination {
  gap: 0.25rem;
}

.page-link {
  border-radius: 0.5rem;
  border: none;
  padding: 0.5rem 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.page-link:hover {
  background-color: #e9ecef;
  transform: translateY(-1px);
}

.page-item.active .page-link {
  background: var(--primary-gradient);
}

/* ===== Info Cards ===== */
.info-item {
  display: flex;
  align-items: flex-start;
  padding: 0.75rem 0;
  border-bottom: 1px solid #f1f3f4;
}

.info-item:last-child {
  border-bottom: none;
}

.info-item .info-icon {
  width: 2rem;
  color: #6c757d;
  flex-shrink: 0;
}

.info-item .info-label {
  font-size: 0.8rem;
  color: #6c757d;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.info-item .info-value {
  font-weight: 500;
  color: #212529;
}

/* ===== Transaction Direction Badge ===== */
.direction-in {
  background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
  color: #155724;
  border: 1px solid #c3e6cb;
}

.direction-out {
  background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
  color: #721c24;
  border: 1px solid #f5c6cb;
}

/* ===== Navbar Enhancements ===== */
.navbar {
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.navbar-brand {
  font-size: 1.4rem;
  letter-spacing: -0.5px;
}

.nav-link {
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  border-radius: 0.5rem;
  transition: background-color var(--transition-fast);
}

.nav-link:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.nav-link.active {
  background-color: rgba(255, 255, 255, 0.15);
}

/* ===== Footer ===== */
footer {
  background: linear-gradient(180deg, #f8f9fa 0%, #e9ecef 100%);
}

/* ===== Responsive Enhancements ===== */
@media (max-width: 768px) {
  .stat-card .display-6 {
    font-size: 1.5rem;
  }
  
  .table-responsive {
    font-size: 0.875rem;
  }
  
  .balance-display .balance-amount {
    font-size: 2rem;
  }
  
  .card:hover {
    transform: none;
  }
}

/* ===== Page Header ===== */
.page-header {
  margin-bottom: 1.5rem;
}

.page-header h1 {
  font-weight: 700;
  color: #212529;
  margin-bottom: 0;
}

.page-header .breadcrumb {
  background: none;
  padding: 0;
  margin-bottom: 0.5rem;
}

/* ===== Animation Classes ===== */
.fade-in {
  animation: fadeIn 0.5s ease-in-out;
}

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

.slide-in-left {
  animation: slideInLeft 0.3s ease-out;
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ===== Tooltip Enhancements ===== */
[data-bs-toggle="tooltip"] {
  cursor: pointer;
}

/* ===== Quick Stats Row ===== */
.quick-stats {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.quick-stat-item {
  flex: 1;
  min-width: 150px;
  background: white;
  border-radius: 0.75rem;
  padding: 1rem;
  box-shadow: var(--card-shadow);
}

/* ===== Action Buttons Group ===== */
.action-buttons {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.action-buttons .btn {
  flex-shrink: 0;
}

/* ===== Status Indicators ===== */
.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 0.5rem;
}

.status-dot.active {
  background-color: #198754;
  box-shadow: 0 0 0 3px rgba(25, 135, 84, 0.2);
}

.status-dot.inactive {
  background-color: #dc3545;
  box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.2);
}

/* ===== Data Table Features ===== */
.sortable-header {
  cursor: pointer;
  user-select: none;
}

.sortable-header:hover {
  background-color: rgba(0, 0, 0, 0.05);
}

.sortable-header i.sort-icon {
  opacity: 0.3;
  transition: opacity var(--transition-fast);
}

.sortable-header:hover i.sort-icon,
.sortable-header.sorted i.sort-icon {
  opacity: 1;
}