/* Patrick Rachunki - Modern Obsidian Black & Royal Blue UI Stylesheet */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Open+Sans:wght@400;600;700&display=swap');

:root {
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-invoice: 'Open Sans', sans-serif;
  
  --bg-app: #f8fafc;
  --bg-surface: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-hover: #e2e8f0;

  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-light: #94a3b8;

  /* Modern Royal Cobalt Blue */
  --brand-primary: #2563eb;
  --brand-primary-hover: #1d4ed8;
  --brand-primary-light: #eff6ff;
  --brand-primary-border: #bfdbfe;

  /* Obsidian Black Accents */
  --brand-dark: #0f172a;
  --brand-dark-hover: #1e293b;
  --brand-dark-light: #f1f5f9;

  --color-success: #10b981;
  --color-success-light: #ecfdf5;
  --color-warning: #f59e0b;
  --color-warning-light: #fffbeb;
  --color-danger: #ef4444;
  --color-danger-light: #fef2f2;

  --border-subtle: #e2e8f0;
  --border-strong: #cbd5e1;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.09), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-app);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* App Container Layout */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* Modern Obsidian Sidebar */
.sidebar {
  width: 270px;
  background-color: #0b1120;
  border-right: 1px solid #1e293b;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 40;
}

.brand-section {
  padding: 24px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid #1e293b;
}

.brand-logo {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 50%, #0f172a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 20px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.brand-title {
  font-size: 17px;
  font-weight: 800;
  color: #f8fafc;
  letter-spacing: -0.3px;
}

.brand-subtitle {
  font-size: 11px;
  font-weight: 500;
  color: #94a3b8;
}

.nav-menu {
  padding: 18px 12px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  flex: 1;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  color: #94a3b8;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  transition: all 0.15s ease;
  cursor: pointer;
  border: 1px solid transparent;
}

.nav-item:hover {
  background-color: #1e293b;
  color: #f8fafc;
}

.nav-item.active {
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
  border-color: rgba(255, 255, 255, 0.15);
}

.nav-item .icon {
  font-size: 17px;
  width: 22px;
  text-align: center;
}

.user-section {
  padding: 16px;
  border-top: 1px solid #1e293b;
  background-color: #070b14;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
  color: #ffffff;
  border: 2px solid #3b82f6;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.user-name {
  font-size: 13.5px;
  font-weight: 700;
  color: #f8fafc;
}

.user-role-badge {
  font-size: 10.5px;
  font-weight: 600;
  padding: 1px 7px;
  border-radius: 4px;
  background-color: #1e293b;
  color: #60a5fa;
  display: inline-block;
}

.btn-logout {
  background: none;
  border: none;
  color: #94a3b8;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  transition: all 0.15s;
}

.btn-logout:hover {
  background-color: #1e293b;
  color: #ef4444;
}

/* Main Content Area */
.main-content {
  flex: 1;
  margin-left: 270px;
  padding: 32px 40px 60px 40px;
  max-width: 1320px;
}

/* Top Action Header */
.top-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 16px;
}

.page-title {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

.page-subtitle {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Modern Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1e40af 0%, #1d4ed8 100%);
  transform: translateY(-1px);
}

.btn-dark {
  background: #0f172a;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.25);
}

.btn-dark:hover {
  background: #1e293b;
  transform: translateY(-1px);
}

/* Aliased for legacy compatibility */
.btn-pink {
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-pink:hover {
  background: linear-gradient(135deg, #1e40af 0%, #1d4ed8 100%);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  border-color: var(--border-strong);
}

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

.btn-danger {
  background-color: var(--color-danger-light);
  color: var(--color-danger);
  border-color: #fecaca;
}

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

.btn-sm {
  padding: 7px 14px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}

.btn-icon {
  padding: 8px;
  border-radius: var(--radius-sm);
}

/* Metric Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.stat-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform 0.15s, box-shadow 0.15s;
}

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

.stat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.stat-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}

.stat-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.stat-icon.blue { background-color: #eff6ff; color: #1d4ed8; border: 1px solid #bfdbfe; }
.stat-icon.dark { background-color: #0f172a; color: #ffffff; }
.stat-icon.pink { background-color: #eff6ff; color: #1d4ed8; border: 1px solid #bfdbfe; }
.stat-icon.green { background-color: #ecfdf5; color: #047857; border: 1px solid #a7f3d0; }
.stat-icon.amber { background-color: #fffbeb; color: #b45309; border: 1px solid #fde68a; }

.stat-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  margin-bottom: 4px;
}

.stat-footer {
  font-size: 12px;
  color: var(--text-muted);
}

/* Content Cards & Tables */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: 28px;
  overflow: hidden;
}

.card-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #ffffff;
  flex-wrap: wrap;
  gap: 12px;
}

.card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-body {
  padding: 24px;
}

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.data-table th {
  padding: 12px 18px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  background-color: #f8fafc;
  border-bottom: 1px solid var(--border-subtle);
}

.data-table td {
  padding: 15px 18px;
  font-size: 14px;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
}

.data-table tbody tr {
  transition: background-color 0.12s;
}

.data-table tbody tr:hover {
  background-color: #f8fafc;
}

.data-table .inv-number {
  font-weight: 700;
  color: var(--brand-primary);
}

.data-table .inv-amount {
  font-weight: 700;
  font-size: 15px;
  color: #0f172a;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
}

.badge-success { background-color: var(--color-success-light); color: #065f46; }
.badge-warning { background-color: var(--color-warning-light); color: #92400e; }
.badge-info { background-color: var(--brand-primary-light); color: #1d4ed8; }
.badge-dark { background-color: #0f172a; color: #ffffff; }
.badge-pink { background-color: #eff6ff; color: #1d4ed8; border: 1px solid #bfdbfe; }

/* Forms & Inputs */
.form-group {
  margin-bottom: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.form-label {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text-primary);
  background-color: #ffffff;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-md);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}

.form-help {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 5px;
}

/* Suggestion Chips */
.suggestion-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.chip {
  padding: 6px 12px;
  font-size: 12.5px;
  font-weight: 600;
  border-radius: var(--radius-full);
  background-color: var(--bg-subtle);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all 0.15s;
}

.chip:hover {
  background-color: var(--brand-primary-light);
  color: var(--brand-primary);
  border-color: var(--brand-primary-border);
}

/* Monthly Chart Bars */
.chart-container {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  height: 180px;
  padding-top: 24px;
  border-bottom: 2px solid var(--border-subtle);
  margin-bottom: 12px;
}

.chart-bar-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  justify-content: flex-end;
}

.chart-bar {
  width: 100%;
  max-width: 44px;
  background: linear-gradient(180deg, #3b82f6 0%, #1d4ed8 100%);
  border-radius: 6px 6px 0 0;
  transition: height 0.4s ease, background 0.2s;
  min-height: 4px;
  position: relative;
}

.chart-bar:hover {
  background: linear-gradient(180deg, #60a5fa 0%, #2563eb 100%);
}

.chart-bar-value {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.chart-bar-label {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-muted);
  margin-top: 8px;
}

/* Settings Sections */
.settings-section-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 22px;
  margin-bottom: 24px;
}

.settings-section-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  color: #0f172a;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid #e2e8f0;
  padding-bottom: 10px;
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(11, 17, 32, 0.75);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background-color: var(--bg-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  transform: scale(0.95);
  transition: transform 0.2s ease;
  border: 1px solid var(--border-subtle);
}

.modal-overlay.active .modal-card {
  transform: scale(1);
}

.modal-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 18px;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
}

.modal-close:hover {
  background-color: var(--bg-subtle);
  color: var(--text-primary);
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  background-color: #f8fafc;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background-color: #0f172a;
  color: #ffffff;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideUp 0.3s ease;
  border: 1px solid #1e293b;
}

.toast.success { background-color: #065f46; border-color: #047857; }
.toast.error { background-color: #991b1b; border-color: #b91c1c; }

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

/* Mobile Responsiveness */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  padding: 8px;
}

@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
    padding: 20px 16px 60px 16px;
  }

  .mobile-nav-toggle {
    display: block;
  }
}