:root {
  --bg-primary: #1a1d29;
  --bg-secondary: #252836;
  --bg-tertiary: #2d3142;
  --bg-hover: #353849;
  --text-primary: #ffffff;
  --text-secondary: #a0a3bd;
  --text-tertiary: #6c6f85;
  --border-color: #3d4155;
  --primary-color: #4e7cff;
  --danger-color: #ef4444;
  --success-color: #10b981;
  --income-color: #10b981;
  --expense-color: #ef4444;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

[data-theme="light"] {
  --bg-primary: #f5f7fa;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f0f2f5;
  --bg-hover: #e8eaed;
  --text-primary: #1a1d29;
  --text-secondary: #5f6368;
  --text-tertiary: #9aa0a6;
  --border-color: #dadce0;
  --primary-color: #1a73e8;
  --danger-color: #d93025;
  --success-color: #0d9488;
  --income-color: #0d9488;
  --expense-color: #d93025;
  --shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color 0.3s, color 0.3s;
}

.page {
  display: none;
}

.page.active {
  display: block;
}

.login-container {
  max-width: 400px;
  margin: 100px auto;
  padding: 40px;
  background-color: var(--bg-secondary);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.login-container h1 {
  text-align: center;
  margin-bottom: 30px;
  font-size: 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  color: var(--text-secondary);
  font-size: 14px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 14px;
  transition: border-color 0.2s, background-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  background-color: var(--bg-secondary);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
}

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

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

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

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

.btn-danger:hover {
  opacity: 0.9;
}

.btn-icon {
  background-color: transparent;
  color: var(--text-primary);
  padding: 8px 12px;
  font-size: 16px;
}

.btn-icon:hover {
  background-color: var(--bg-hover);
}

.error-message {
  color: var(--danger-color);
  font-size: 14px;
  margin-top: 10px;
  text-align: center;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  background-color: var(--bg-secondary);
  box-shadow: var(--shadow);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 15px;
}

.header-left h1 {
  font-size: 24px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 15px;
}

#current-user {
  color: var(--text-secondary);
  font-size: 14px;
}

.admin-panel {
  padding: 15px 40px;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 30px;
}

.admin-section {
  display: flex;
  align-items: center;
  gap: 10px;
}

.admin-panel label {
  color: var(--text-secondary);
  font-size: 14px;
}

.admin-panel select {
  padding: 8px 12px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 14px;
}

.statistics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding: 30px 40px;
  max-width: 1200px;
  margin: 0 auto;
}

.stat-card {
  background-color: var(--bg-secondary);
  padding: 20px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: transform 0.2s;
}

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

.stat-label {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 8px;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
}

.address-management {
  display: flex;
  gap: 15px;
  padding: 0 40px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.address-management select {
  flex: 1;
  padding: 10px 15px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 14px;
}

.current-address-stats {
  display: flex;
  gap: 30px;
  padding: 0 40px 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.stat-item {
  display: flex;
  gap: 10px;
  align-items: center;
  color: var(--text-secondary);
  font-size: 14px;
}

.stat-number {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 16px;
}

.calendar {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px 40px;
}

.calendar-header {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  margin-bottom: 30px;
}

.calendar-header h2 {
  font-size: 22px;
  min-width: 150px;
  text-align: center;
}

.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 10px;
  margin-bottom: 10px;
}

.weekday {
  text-align: center;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  padding: 10px;
}

.calendar-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 10px;
}

.calendar-day {
  background-color: var(--bg-secondary);
  border-radius: 8px;
  padding: 15px;
  min-height: 100px;
  cursor: pointer;
  transition: all 0.2s;
  border: 2px solid transparent;
  position: relative;
}

.calendar-day:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
  border-color: var(--primary-color);
}

.calendar-day.today {
  border-color: var(--primary-color);
}

.calendar-day.other-month {
  opacity: 0.4;
}

.day-number {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.day-data {
  font-size: 12px;
  margin-top: 5px;
}

.day-income {
  color: var(--income-color);
  font-weight: 500;
}

.day-expense {
  color: var(--expense-color);
  font-weight: 500;
}

.day-balance {
  color: var(--text-primary);
  font-weight: 600;
  margin-top: 3px;
}

.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: 1000;
  justify-content: center;
  align-items: center;
}

.modal.active {
  display: flex;
}

.modal-content {
  background-color: var(--bg-secondary);
  border-radius: 12px;
  padding: 30px;
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.modal-small {
  max-width: 400px;
}

.modal-large {
  max-width: 800px;
}

.modal-content h2 {
  margin-bottom: 25px;
  font-size: 20px;
}

.modal-summary {
  background-color: var(--bg-tertiary);
  padding: 15px;
  border-radius: 8px;
  margin: 20px 0;
}

.summary-item {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 14px;
}

.summary-item:last-child {
  margin-bottom: 0;
}

.expense-text {
  color: var(--expense-color);
  font-weight: 600;
}

.income-text {
  color: var(--income-color);
  font-weight: 600;
}

.projects-text {
  color: var(--text-tertiary);
  font-weight: 600;
}

.profit-text {
  color: var(--text-primary);
  font-weight: 600;
}

.balance-text {
  color: var(--text-primary);
  font-weight: 700;
  font-size: 16px;
}

.modal-buttons {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 20px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.modal-header h2 {
  margin: 0;
}

.user-management-content {
  margin-top: 20px;
}

.user-management-header {
  margin-bottom: 20px;
}

.user-list {
  overflow-x: auto;
}

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

.user-table th,
.user-table td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.user-table th {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 14px;
}

.user-table td {
  color: var(--text-primary);
  font-size: 14px;
}

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

.user-role {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.user-role.admin {
  background-color: rgba(78, 124, 255, 0.2);
  color: var(--primary-color);
}

.user-role.user {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
}

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

.btn-small {
  padding: 6px 12px;
  font-size: 12px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--text-primary);
}

.checkbox-label input[type="checkbox"] {
  width: auto;
  cursor: pointer;
}

@media (max-width: 768px) {
  .statistics {
    grid-template-columns: 1fr;
    padding: 20px;
  }
  
  .calendar,
  .address-management,
  .current-address-stats {
    padding-left: 20px;
    padding-right: 20px;
  }
  
  .header {
    padding: 15px 20px;
    flex-direction: column;
    gap: 15px;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .calendar-day {
    min-height: 80px;
    padding: 10px;
  }
  
  .current-address-stats {
    flex-direction: column;
    gap: 10px;
  }
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}