:root {
  --bg-primary: #F8F9FA;
  --bg-card: #FFFFFF;
  --bg-sidebar: #1E293B;
  --text-primary: #1A1A2E;
  --text-secondary: #6C757D;
  --text-muted: #ADB5BD;
  --text-sidebar: #94A3B8;
  --color-income: #22C55E;
  --color-expense: #EF4444;
  --color-debt: #F59E0B;
  --color-credit: #3B82F6;
  --color-warning: #EAB308;
  --color-success: #10B981;
  --color-danger: #DC2626;
  --color-info: #0DCAF0;
  --accent: #6366F1;
  --accent-hover: #4F46E5;
  --border: #E2E8F0;
  --input-border: #CBD5E1;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --radius: 8px;
  --radius-lg: 12px;
}

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

body {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  line-height: 1.5;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Inter', sans-serif;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  font-weight: 600;
  line-height: 1.2;
}

h1 { font-size: 2rem; font-weight: 700; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1rem; }

.text-money {
  font-family: 'JetBrains Mono', monospace;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.text-muted { color: var(--text-muted) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-primary { color: var(--text-primary) !important; }
.text-success { color: var(--color-success) !important; }
.text-danger { color: var(--color-danger) !important; }
.text-warning { color: var(--color-warning) !important; }
.text-info { color: var(--color-info) !important; }

.text-sm { font-size: 0.85rem; }
.text-lg { font-size: 1.15rem; }

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.font-400 { font-weight: 400; }
.font-500 { font-weight: 500; }
.font-600 { font-weight: 600; }
.font-700 { font-weight: 700; }

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent-hover);
}

.container {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
}

.page-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0;
}

/* Sidebar */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  width: 260px;
  height: 100vh;
  background-color: var(--bg-sidebar);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease;
}

.sidebar-logo {
  padding: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-logo a {
  color: #fff;
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 16px 0;
}

.nav-item {
  list-style: none;
  margin-bottom: 4px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  color: var(--text-sidebar);
  border-left: 3px solid transparent;
  transition: all 0.2s ease;
  font-size: 0.95rem;
}

.nav-link:hover {
  background-color: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.nav-link.active {
  border-left-color: var(--accent);
  background-color: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-weight: 600;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-sidebar);
  font-size: 0.85rem;
}

.sidebar-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 999;
  display: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

/* Main Content */
.main-content {
  margin-left: 260px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left 0.3s ease;
}

.content-wrapper {
  flex: 1;
  padding: 24px;
}

/* Topbar */
.topbar {
  position: sticky;
  top: 0;
  background-color: #fff;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
  z-index: 100;
  box-shadow: var(--shadow);
  height: 64px;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.hamburger-btn {
  display: none;
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-primary);
  cursor: pointer;
  padding: 4px;
}

.user-menu {
  position: relative;
}

.user-menu-toggle {
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 500;
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.9rem;
}

.user-dropdown {
  position: absolute;
  right: 0;
  top: 100%;
  margin-top: 8px;
  background-color: #fff;
  min-width: 200px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  display: none;
  z-index: 1000;
  overflow: hidden;
}

.user-menu.active .user-dropdown {
  display: block;
}

.dropdown-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background-color: var(--bg-primary);
}

.dropdown-header .name {
  font-weight: 600;
  display: block;
  margin-bottom: 4px;
}

.dropdown-header .package {
  font-size: 0.75rem;
}

.dropdown-item {
  display: block;
  padding: 10px 16px;
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: background-color 0.2s;
}

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

.dropdown-divider {
  height: 1px;
  background-color: var(--border);
  margin: 0;
}

/* Cards */
.card {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  margin-bottom: 24px;
  border: 1px solid var(--border);
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-title {
  margin: 0;
  font-size: 1.1rem;
}

.card-body {
  padding: 20px;
}

.card-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  background-color: var(--bg-primary);
}

/* Stat Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.stat-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 20px;
  border-left: 4px solid var(--border);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.stat-card--income { border-left-color: var(--color-income); }
.stat-card--expense { border-left-color: var(--color-expense); }
.stat-card--debt { border-left-color: var(--color-debt); }
.stat-card--credit { border-left-color: var(--color-credit); }
.stat-card--warning { border-left-color: var(--color-warning); }
.stat-card--info { border-left-color: var(--color-info); }
.stat-card--primary { border-left-color: var(--accent); }

.stat-content {
  position: relative;
  z-index: 1;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-icon {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 2.5rem;
  opacity: 0.1;
  z-index: 0;
}

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

table {
  width: 100%;
  border-collapse: collapse;
}

th {
  background-color: #F1F5F9;
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background-color: #F8FAFC;
}

.table-actions {
  display: flex;
  gap: 8px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
  font-family: inherit;
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background-color: var(--accent-hover);
  color: #fff;
}

.btn-success {
  background-color: var(--color-success);
  color: #fff;
}
.btn-success:hover {
  background-color: #059669;
}

.btn-danger {
  background-color: var(--color-danger);
  color: #fff;
}
.btn-danger:hover {
  background-color: #B91C1C;
}

.btn-warning {
  background-color: var(--color-warning);
  color: #fff;
}
.btn-warning:hover {
  background-color: #CA8A04;
}

.btn-info {
  background-color: var(--color-info);
  color: #fff;
}
.btn-info:hover {
  background-color: #0891B2;
}

.btn-secondary {
  background-color: var(--text-secondary);
  color: #fff;
}
.btn-secondary:hover {
  background-color: #475569;
}

.btn-light {
  background-color: #F1F5F9;
  color: var(--text-primary);
  border-color: var(--border);
}
.btn-light:hover {
  background-color: #E2E8F0;
}

.btn-outline-primary {
  border-color: var(--accent);
  color: var(--accent);
  background-color: transparent;
}
.btn-outline-primary:hover {
  background-color: var(--accent);
  color: #fff;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: 6px;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
}

.btn-icon {
  padding: 8px;
  border-radius: var(--radius);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-group {
  display: flex;
  gap: 8px;
}

/* Forms */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: 6px;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--input-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  background-color: #fff;
  color: var(--text-primary);
}

.form-control:focus {
  border-color: var(--accent);
  outline: none;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.form-control:disabled, .form-control[readonly] {
  background-color: #F1F5F9;
  cursor: not-allowed;
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236C757D'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 36px;
  cursor: pointer;
}

textarea.form-control {
  min-height: 100px;
  resize: vertical;
}

.form-error .form-control {
  border-color: var(--color-danger);
}

.form-error-text {
  color: var(--color-danger);
  font-size: 0.8rem;
  margin-top: 4px;
  display: block;
}

.form-text {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 4px;
  display: block;
}

.form-row {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
}

.form-row > .form-group {
  flex: 1;
  margin-bottom: 0;
}

.form-check {
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-check-input {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--accent);
}

.form-check-label {
  font-size: 0.9rem;
  cursor: pointer;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
}

.badge-success { background-color: #DCFCE7; color: #166534; }
.badge-danger { background-color: #FEE2E2; color: #991B1B; }
.badge-warning { background-color: #FEF3C7; color: #92400E; }
.badge-info { background-color: #DBEAFE; color: #1E40AF; }
.badge-secondary { background-color: #F1F5F9; color: #475569; }
.badge-primary { background-color: #E0E7FF; color: #3730A3; }

/* Alerts */
.alert {
  padding: 14px 20px;
  border-radius: var(--radius);
  margin-bottom: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.95rem;
  border-left: 4px solid;
}

.alert-success {
  background-color: #F0FDF4;
  border-left-color: var(--color-success);
  color: #166534;
}

.alert-danger {
  background-color: #FEF2F2;
  border-left-color: var(--color-danger);
  color: #991B1B;
}

.alert-warning {
  background-color: #FFFBEB;
  border-left-color: var(--color-warning);
  color: #92400E;
}

.alert-info {
  background-color: #EFF6FF;
  border-left-color: var(--color-info);
  color: #1E40AF;
}

.alert-close {
  background: transparent;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  color: inherit;
  opacity: 0.5;
  transition: opacity 0.2s;
}

.alert-close:hover {
  opacity: 1;
}

/* Pagination */
.pagination {
  display: flex;
  gap: 4px;
  justify-content: center;
  margin-top: 20px;
  list-style: none;
}

.page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.9rem;
  background-color: #fff;
  min-width: 36px;
  transition: all 0.2s;
}

.page-link:hover {
  background-color: #F1F5F9;
}

.page-link.active {
  background-color: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.page-link.disabled {
  color: var(--text-muted);
  pointer-events: none;
  background-color: #F8FAFC;
}

/* Modals */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  justify-content: center;
  align-items: center;
}

.modal.active {
  display: flex;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
}

.modal-content {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  z-index: 1;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  animation: modalIn 0.3s ease-out;
}

@keyframes modalIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.modal-header {
  padding: 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  margin: 0;
  font-size: 1.25rem;
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-secondary);
  line-height: 1;
}

.modal-body {
  padding: 20px;
}

.modal-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  background-color: var(--bg-primary);
}

/* Filter Bar */
.filter-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  padding: 16px;
  background-color: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  align-items: flex-end;
}

.filter-bar .form-group {
  margin-bottom: 0;
}

.filter-bar .form-control {
  min-width: 150px;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 12px;
  display: block;
}

.empty-state-text {
  font-size: 1.1rem;
  margin-bottom: 16px;
  color: var(--text-secondary);
}

/* Utilities */
.d-flex { display: flex; }
.d-block { display: block; }
.d-none { display: none; }
.d-inline-block { display: inline-block; }

.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.justify-content-end { justify-content: flex-end; }
.align-items-center { align-items: center; }
.align-items-start { align-items: flex-start; }

.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 16px; }
.gap-4 { gap: 24px; }

.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; }

.mb-0 { margin-bottom: 0 !important; }
.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; }

.ms-auto { margin-left: auto; }
.me-2 { margin-right: 0.5rem; }
.me-3 { margin-right: 1rem; }

.p-2 { padding: 0.5rem; }
.p-3 { padding: 1rem; }
.p-4 { padding: 1.5rem; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

/* Responsive */
@media (max-width: 1024px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  body.sidebar-open .sidebar {
    transform: translateX(0);
  }
  
  body.sidebar-open .sidebar-overlay {
    display: block;
    opacity: 1;
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .hamburger-btn {
    display: block;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .form-row {
    flex-direction: column;
    gap: 0;
  }
  
  .form-row > .form-group {
    margin-bottom: 16px;
  }
  
  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filter-bar .form-group {
    margin-bottom: 12px;
  }
  
  .filter-bar .form-control {
    width: 100%;
    max-width: none;
  }
  
  .filter-bar .btn {
    width: 100%;
  }
  
  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .page-header .actions {
    width: 100%;
    display: flex;
    justify-content: stretch;
  }
  
  .page-header .actions .btn {
    flex: 1;
  }
}

/* Print */
@media print {
  .sidebar, .topbar, .btn, .filter-bar, .pagination {
    display: none !important;
  }
  
  .main-content {
    margin-left: 0 !important;
    padding: 0 !important;
  }
  
  .content-wrapper {
    padding: 0 !important;
  }
  
  .card {
    box-shadow: none !important;
    border: 1px solid #ddd !important;
    break-inside: avoid;
  }
  
  body {
    background-color: #fff !important;
  }
}