:root {
  /* Colors */
  --color-background: rgba(252, 252, 249, 1);
  --color-surface: rgba(255, 255, 253, 1);
  --color-text: rgba(19, 52, 59, 1);
  --color-text-secondary: rgba(98, 108, 113, 1);
  --color-primary: rgba(33, 128, 141, 1);
  --color-primary-hover: rgba(29, 116, 128, 1);
  --color-primary-active: rgba(26, 104, 115, 1);
  --color-secondary: rgba(94, 82, 64, 0.12);
  --color-secondary-hover: rgba(94, 82, 64, 0.2);
  --color-secondary-active: rgba(94, 82, 64, 0.25);
  --color-border: rgba(94, 82, 64, 0.2);
  --color-btn-primary-text: rgba(252, 252, 249, 1);
  --color-card-border: rgba(94, 82, 64, 0.12);
  --color-card-border-inner: rgba(94, 82, 64, 0.12);
  --color-error: rgba(192, 21, 47, 1);
  --color-success: rgba(33, 128, 141, 1);
  --color-warning: rgba(168, 75, 47, 1);
  --color-info: rgba(98, 108, 113, 1);
  --color-focus-ring: rgba(33, 128, 141, 0.4);
  --color-select-caret: rgba(19, 52, 59, 0.8);

  /* Common style patterns */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* RGB versions for opacity control */
  --color-success-rgb: 33, 128, 141;
  --color-error-rgb: 192, 21, 47;
  --color-warning-rgb: 168, 75, 47;
  --color-info-rgb: 98, 108, 113;

  /* Typography */
  --font-family-base: "FKGroteskNeue", "Geist", "Inter", -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-mono: "Berkeley Mono", ui-monospace, SFMono-Regular, Menlo,
    Monaco, Consolas, monospace;
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-4xl: 30px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 550;
  --font-weight-bold: 600;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --letter-spacing-tight: -0.01em;

  /* Spacing */
  --space-0: 0;
  --space-1: 1px;
  --space-2: 2px;
  --space-4: 4px;
  --space-6: 6px;
  --space-8: 8px;
  --space-10: 10px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-base: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04),
    0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04),
    0 4px 6px -2px rgba(0, 0, 0, 0.02);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.15),
    inset 0 -1px 0 rgba(0, 0, 0, 0.03);

  /* Animation */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
}

/* Dark mode colors */
@media (prefers-color-scheme: dark) {
  :root {
    --color-background: rgba(31, 33, 33, 1);
    --color-surface: rgba(38, 40, 40, 1);
    --color-text: rgba(245, 245, 245, 1);
    --color-text-secondary: rgba(167, 169, 169, 0.7);
    --color-primary: rgba(50, 184, 198, 1);
    --color-primary-hover: rgba(45, 166, 178, 1);
    --color-primary-active: rgba(41, 150, 161, 1);
    --color-secondary: rgba(119, 124, 124, 0.15);
    --color-secondary-hover: rgba(119, 124, 124, 0.25);
    --color-secondary-active: rgba(119, 124, 124, 0.3);
    --color-border: rgba(119, 124, 124, 0.3);
    --color-error: rgba(255, 84, 89, 1);
    --color-success: rgba(50, 184, 198, 1);
    --color-warning: rgba(230, 129, 97, 1);
    --color-info: rgba(167, 169, 169, 1);
    --color-focus-ring: rgba(50, 184, 198, 0.4);
    --color-btn-primary-text: rgba(19, 52, 59, 1);
    --color-card-border: rgba(119, 124, 124, 0.2);
    --color-card-border-inner: rgba(119, 124, 124, 0.15);
    --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1),
      inset 0 -1px 0 rgba(0, 0, 0, 0.15);
    --button-border-secondary: rgba(119, 124, 124, 0.2);
    --color-border-secondary: rgba(119, 124, 124, 0.2);
    --color-select-caret: rgba(245, 245, 245, 0.8);
  }
}

/* Dark Theme */
[data-theme="dark"] {
  --color-background: rgba(16, 16, 16, 1);
  --color-surface: rgba(24, 24, 24, 1);
  --color-text: rgba(245, 245, 245, 1);
  --color-text-secondary: rgba(163, 163, 163, 1);
  --color-primary: rgba(64, 165, 181, 1);
  --color-primary-hover: rgba(78, 184, 202, 1);
  --color-primary-active: rgba(52, 142, 157, 1);
  --color-secondary: rgba(255, 255, 255, 0.08);
  --color-secondary-hover: rgba(255, 255, 255, 0.12);
  --color-secondary-active: rgba(255, 255, 255, 0.16);
  --color-border: rgba(255, 255, 255, 0.12);
  --color-btn-primary-text: rgba(16, 16, 16, 1);
  --color-card-border: rgba(255, 255, 255, 0.08);
  --color-card-border-inner: rgba(255, 255, 255, 0.08);
  --color-focus-ring: rgba(64, 165, 181, 0.4);
  --color-select-caret: rgba(245, 245, 245, 0.8);
  --select-caret-light: var(--select-caret-dark);
}

/* Base Styling */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  letter-spacing: var(--letter-spacing-tight);
}

h1 {
  font-size: var(--font-size-4xl);
}
h2 {
  font-size: var(--font-size-3xl);
}
h3 {
  font-size: var(--font-size-2xl);
}

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

.app-header {
  background-color: var(--color-surface);
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--color-border);
}

.app-header .container {
  position: relative;
  display: grid;
  grid-template-columns: 280px auto 280px;
  column-gap: 128px;
  align-items: center;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-20);
}

.header-title-center {
  grid-column: 2;
  text-align: center;
}

.app-header h1 {
  margin-bottom: var(--space-2);
}

.subtitle {
  color: var(--color-text-secondary);
  font-size: var(--font-size-md);
  margin: 0;
}

.container {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-20);
}

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-10) var(--space-16);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--radius-base);
  cursor: pointer;
  text-decoration: none;
  transition: all var(--duration-normal) var(--ease-standard);
  background: none;
  white-space: nowrap;
}

.btn:focus {
  outline: none;
  box-shadow: var(--focus-ring);
}

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

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

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

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

.btn--sm {
  padding: var(--space-6) var(--space-12);
  font-size: var(--font-size-sm);
}

/* Form Controls */
.form-control,
.form-select {
  display: block;
  width: 100%;
  padding: var(--space-10) var(--space-12);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  transition: border-color var(--duration-normal) var(--ease-standard);
}

.form-control:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring);
}

.form-select {
  background-image: var(--select-caret-light);
  background-position: right var(--space-12) center;
  background-repeat: no-repeat;
  background-size: 16px;
  padding-right: var(--space-32);
  appearance: none;
}

@media (prefers-color-scheme: dark) {
  .form-select {
    background-image: var(--select-caret-dark);
  }
}

/* Admin Dashboard Specific Styles */

/* Settings Page Navigation */
.settings-nav-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
  overflow-x: auto;
}

.settings-nav-header::-webkit-scrollbar {
  height: 2px;
}

.settings-nav-header::-webkit-scrollbar-track {
  background: var(--color-background);
}

.settings-nav-header::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 1px;
}

.settings-tabs {
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  min-width: 100%;
  width: max-content;
}

.settings-tabs::-webkit-scrollbar {
  display: none;
}

.settings-tab {
  background: none;
  border: none;
  padding: var(--space-12) var(--space-20);
  cursor: pointer;
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  border-bottom: 3px solid transparent;
  transition: all var(--duration-normal) var(--ease-standard);
  position: relative;
  white-space: nowrap;
  flex-shrink: 0;
  min-width: max-content;
  overflow: visible;
  text-overflow: unset;
}

.settings-tab:hover {
  color: var(--color-text);
  background-color: var(--color-secondary);
  transform: translateY(-1px);
}

.settings-tab.active {
  color: var(--color-primary);
  background-color: var(--color-background);
  border-bottom-color: var(--color-primary);
  font-weight: 600;
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.settings-tab:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}

/* Settings Sections */
.settings-section {
  display: none;
  max-width: 1600px;
  margin: 0 auto;
  text-align: center;
}

.settings-section.active {
  display: block;
}

.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-20);
  margin-bottom: var(--space-20);
  justify-items: center;
}

/* Settings Cards */
.settings-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-border);
  padding: var(--space-20);
  box-shadow: var(--shadow-sm);
  width: 100%;
  max-width: 600px;
  text-align: left;
  margin: 0 auto;
}

.settings-card h2 {
  margin: 0 0 var(--space-16) 0;
  color: var(--color-text);
  font-size: var(--font-size-xl);
  text-align: center;
}

.table-card {
  max-width: 1400px;
  width: 100%;
}

/* Bases Tab Specific */
#bases-tab {
  max-width: 1800px;
}

#bases-tab .settings-grid {
  grid-template-columns: 1fr;
  gap: var(--space-24);
  max-width: 1400px;
  margin: 0 auto var(--space-20) auto;
}

#bases-tab .settings-card {
  max-width: 1100px;
}

/* Table Card */
#bases-tab .table-card {
  max-width: 1400px;
  width: 100%;
  grid-column: 1 / -1;
}

#bases-tab .settings-grid + .table-card {
  margin-top: var(--space-24);
}

/* Other Tabs */
#users-tab .settings-card,
#appearance-tab .settings-card,
#about-tab .settings-card {
  max-width: 600px;
  margin: 0 auto;
}

#about-tab .about-info {
  text-align: left;
  max-width: 500px;
  margin: 0 auto;
}

#about-tab .about-info h3 {
  text-align: center;
  color: var(--color-primary);
}

#about-tab .about-info ul {
  text-align: left;
  max-width: 400px;
  margin: var(--space-12) auto;
}

/* Add Base Container - Side by Side Layout */
.add-base-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-24);
  align-items: start;
}

/* Form Admin */
.form-admin {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
  max-width: none;
  margin: 0;
  width: 100%;
}

/* Location Selection */
.location-section {
  margin: 0;
  padding: var(--space-20);
  background-color: var(--color-background);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-border);
  width: 100%;
  height: fit-content;
}

.location-section h3 {
  margin: 0 0 var(--space-8) 0;
  font-size: var(--font-size-lg);
  color: var(--color-text);
  text-align: center;
}

.form-help {
  margin: 0 0 var(--space-16) 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-align: center;
  font-style: italic;
}

.location-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

.mini-map {
  width: 100%;
  height: 400px;
  border-radius: var(--radius-base);
  border: 2px solid var(--color-border);
  background-color: var(--color-surface);
  position: relative;  overflow: hidden;
  cursor: crosshair;
  display: block;
}


.mini-map:hover {
  border-color: var(--color-primary);
}

.mini-map::before {
  content: "Kaart laden...";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  z-index: 1;
}

/* Statistics */
.stats-overview {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
  max-width: 450px;
  margin: 0 auto;
}

.stat-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-8) 0;
  border-bottom: 1px solid var(--color-border);
}

.stat-label {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.stat-value {
  font-weight: 600;
  color: var(--color-primary);
  font-size: var(--font-size-lg);
}

/* Table Controls */
.table-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-12);
  flex-wrap: wrap;
  margin-bottom: var(--space-16);
}

.table-container {
  overflow-x: auto;
  margin: 0 auto;
  max-width: 100%;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--color-surface);
  margin: 0 auto;
}

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

.data-table th {
  background-color: var(--color-secondary);
  font-weight: 600;
  color: var(--color-text);
}

.data-table tbody tr:hover {
  background-color: var(--color-secondary);
}

/* User Management */
.user-list {
  max-width: 450px;
  margin: 0 auto var(--space-16) auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.user-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-12);
  background-color: var(--color-background);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-border);
}

.user-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.user-role {
  font-size: var(--font-size-sm);
  padding: var(--space-2) var(--space-8);
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.user-role.admin {
  background-color: var(--color-primary);
  color: white;
}

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

/* Settings Items */
.setting-item {
  margin-bottom: var(--space-16);
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
  text-align: left;
}

.setting-label {
  display: block;
  margin-bottom: var(--space-8);
  font-weight: 500;
  text-align: center;
}

/* Buttons */
.settings-card .btn {
  display: block;
  margin: var(--space-16) auto 0 auto;
  max-width: 200px;
}

/* Responsive Design */
@media (max-width: 768px) {
  .settings-grid {
    grid-template-columns: 1fr;
    justify-items: center;
  }
  
  .settings-tab {
    padding: var(--space-10) var(--space-16);
    font-size: var(--font-size-sm);
    min-width: max-content;
    white-space: nowrap;
  }
  
  .settings-tabs {
    justify-content: flex-start;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  .app-header .container {
    flex-direction: column;
    gap: var(--space-12);
    align-items: center;
  }
  
  .header-title-center {
    text-align: center;
  }
  
  .header-title-center h1 {
    font-size: var(--font-size-xl);
  }
  
  .settings-card {
    max-width: 95%;
  }
  
  #bases-tab .settings-card {
    max-width: 95%;
  }
  
  #bases-tab .table-card {
    max-width: 98%;
  }
  
  #bases-tab .settings-grid {
    grid-template-columns: 1fr;
    gap: var(--space-16);
  }
  
  .table-controls {
    flex-direction: column;
    gap: var(--space-8);
  }
  
  .location-inputs {
    grid-template-columns: 1fr;
  }
  
  .mini-map {
    height: 300px;
  }
  
  .location-section {
    padding: var(--space-16);
  }
  
  .add-base-container {
    grid-template-columns: 1fr;
    gap: var(--space-16);
  }
}

/* Theme Toggle Styles */
.theme-toggle {
  background: none;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-full);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);
  color: var(--color-text);
}

.theme-toggle:hover {
  border-color: var(--color-primary);
  background-color: var(--color-secondary);
}

.theme-toggle:focus {
  outline: none;
  box-shadow: var(--focus-ring);
}

.theme-icon {
  font-size: 18px;
  transition: transform var(--duration-fast) var(--ease-standard);
}

.theme-toggle:hover .theme-icon {
  transform: scale(1.1);
}

/* Modal Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-24);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.modal-content h3 {
  margin: 0 0 var(--space-20) 0;
  color: var(--color-text);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
}

.modal-actions {
  display: flex;
  gap: var(--space-12);
  justify-content: flex-end;
  margin-top: var(--space-20);
}

.form-group {
  margin-bottom: var(--space-16);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

.form-group input,
.form-group select {
  width: 100%;
  padding: var(--space-10) var(--space-12);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  font-size: var(--font-size-md);
  background-color: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--duration-fast) var(--ease-standard);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring);
}

.form-group input[readonly] {
  background-color: var(--color-secondary);
  color: var(--color-text-secondary);
}