@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

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

:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #64748b;
  --border-color: #e2e8f0;
  --brand-primary: #0ea5e9;
  --brand-hover: #0284c7;
  --success: #22c55e;
  --danger: #ef4444;
  --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);
}

.dark {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-tertiary: #94a3b8;
  --border-color: #334155;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

html {
  scroll-behavior: smooth;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Layout */
.dashboard-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

@media (max-width: 1024px) {
  .dashboard-layout {
    grid-template-columns: 1fr;
  }
}

/* Sidebar */
.sidebar {
  background-color: var(--bg-primary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
}

@media (max-width: 1024px) {
  .sidebar {
    display: none;
  }
}

.sidebar-header {
  height: 64px;
  display: flex;
  align-items: center;
  padding: 0 1rem;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1rem;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background-color: var(--brand-primary);
  color: white;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.sidebar-nav {
  padding: 0.5rem;
  flex: 1;
}

.sidebar-nav a {
  display: block;
  padding: 0.5rem 0.75rem;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 6px;
  margin-bottom: 4px;
  transition: all 0.2s;
  font-size: 0.875rem;
}

.sidebar-nav a:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.sidebar-footer {
  padding: 1rem;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin-top: auto;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.dark .header {
  background-color: rgba(15, 23, 42, 0.8);
}

.header-content {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Buttons */
.btn {
  padding: 0.5rem 1rem;
  border-radius: 6px;
  border: none;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

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

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

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

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

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.mobile-menu-btn {
  display: none;
}

@media (max-width: 1024px) {
  .mobile-menu-btn {
    display: inline-flex;
  }
}

/* Cards */
.card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.card-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 1rem 0;
}

/* Main Content */
.main-content {
  padding: 2rem 1.5rem;
  max-width: 1400px;
  margin: 0 auto;
}

.section {
  margin-bottom: 2.5rem;
}

/* Grid */
.grid {
  display: grid;
  gap: 1rem;
}

.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
  .grid-cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-cols-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
}

/* Form Elements */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.form-input {
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 0.875rem;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: inherit;
  transition: all 0.2s;
}

.form-input:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
}

/* Stats Cards */
.stat-card {
  padding: 1.25rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-bottom: 0.5rem;
}

.stat-value {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Worker Cards */
.worker-card {
  padding: 1rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.worker-info {
  flex: 1;
}

.worker-name {
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.worker-date {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

/* Table */
.table-container {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

thead {
  text-align: left;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}

th {
  padding: 0.75rem 1rem 0.75rem 0;
  font-weight: 600;
}

td {
  padding: 0.75rem 1rem 0.75rem 0;
  border-bottom: 1px solid var(--border-color);
}

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

.text-success {
  color: var(--success);
}

.text-danger {
  color: var(--danger);
}

/* Mobile Sidebar */
.mobile-sidebar {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: none;
}

.mobile-sidebar.active {
  display: block;
}

.mobile-sidebar-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
}

.mobile-sidebar-content {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 280px;
  background-color: var(--bg-primary);
  border-right: 1px solid var(--border-color);
  padding: 1rem;
}

.mobile-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

/* Chart Containers */
.chart-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 1.5rem;
}

@media (max-width: 1024px) {
  .chart-grid {
    grid-template-columns: 1fr;
  }
}

.chart-container {
  position: relative;
  height: 300px;
}

/* Empty State */
.empty-state {
  padding: 2rem;
  text-align: center;
  color: var(--text-tertiary);
  font-size: 0.875rem;
}

/* Utilities */
.hidden {
  display: none !important;
}

.text-sm {
  font-size: 0.875rem;
}

.text-xs {
  font-size: 0.75rem;
}

.font-medium {
  font-weight: 500;
}

.font-semibold {
  font-weight: 600;
}

.font-bold {
  font-weight: 700;
}

.mb-4 {
  margin-bottom: 1rem;
}

.mt-6 {
  margin-top: 1.5rem;
}

.gap-3 {
  gap: 0.75rem;
}

.card-header-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.card-title-inline {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0;
}

/* Cash Flow Section */
.cashflow-explanation {
  display: grid;
  gap: 2rem;
}

.flow-section {
  background-color: var(--bg-tertiary);
  border-radius: 8px;
  padding: 1.5rem;
}

.flow-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 1rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.flow-items {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.flow-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 0.75rem;
  background-color: var(--bg-primary);
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

.flow-label {
  font-weight: 500;
  color: var(--text-primary);
}

.flow-amount {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--brand-primary);
}

.flow-desc {
  grid-column: 1 / -1;
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-top: 0.25rem;
}

.cycle-explanation {
  display: grid;
  gap: 0.75rem;
}

.cycle-month {
  padding: 0.75rem;
  background-color: var(--bg-primary);
  border-radius: 6px;
  border-left: 4px solid var(--brand-primary);
  font-size: 0.875rem;
  line-height: 1.5;
}

.cycle-month strong {
  color: var(--brand-primary);
}

/* Collapsible functionality */
.collapsed {
  display: none !important;
}

.cashflow-toggle {
  transition: transform 0.2s ease;
}

.cashflow-toggle.expanded {
  transform: rotate(180deg);
}

/* Warning info */
.warning-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.warning-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 1rem;
  background-color: var(--bg-primary);
  border-radius: 6px;
  border: 1px solid var(--border-color);
  border-left: 4px solid #f59e0b;
}

.warning-label {
  font-weight: 500;
  color: var(--text-primary);
}

.warning-amount {
  font-weight: 700;
  font-size: 1.125rem;
  color: #f59e0b;
}

.warning-desc {
  grid-column: 1 / -1;
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-top: 0.25rem;
}