/* ============================================================================
   HAWK-OPS: RQ-4B Global Hawk Mission Planning Application
   Main Global Stylesheet
   ============================================================================ */

/* --- CSS CUSTOM PROPERTIES / VARIABLES --- */
:root {
  /* Color Palette - Dark Military Theme */
  --color-bg-primary: #1a1d23;      /* Main background */
  --color-bg-secondary: #242830;    /* Cards, panels */
  --color-bg-tertiary: #2d323c;     /* Hover states, borders */
  --color-bg-hover: #32373f;        /* Element hover */

  --color-text-primary: #e0e4ec;    /* Primary text */
  --color-text-secondary: #8b92a0;  /* Secondary text, labels */
  --color-text-tertiary: #6b7280;   /* Tertiary text, placeholders */

  --color-accent-blue: #4a90d9;     /* Primary accent, active states */
  --color-accent-blue-light: #5da3e8;
  --color-accent-blue-dark: #3975b8;

  --color-warning: #d4a017;         /* Amber/gold warnings */
  --color-warning-light: #e5b535;
  --color-warning-dark: #b58913;

  --color-danger: #d94a4a;          /* Red alerts */
  --color-danger-light: #e85757;
  --color-danger-dark: #c63a3a;

  --color-success: #4ad97a;         /* Green success */
  --color-success-light: #5fe089;
  --color-success-dark: #3ab860;

  --color-border: #3a404c;          /* Borders, dividers */
  --color-border-light: #48505e;
  --color-border-dark: #2d323c;

  /* Brand Colors */
  --color-brand-amber: #d4a017;     /* Hawk-Ops logo/branding */

  /* Typography */
  --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-family-mono: 'Courier New', Courier, monospace;

  --font-size-xs: 0.75rem;          /* 12px */
  --font-size-sm: 0.875rem;         /* 14px */
  --font-size-base: 1rem;           /* 16px */
  --font-size-lg: 1.125rem;         /* 18px */
  --font-size-xl: 1.25rem;          /* 20px */
  --font-size-2xl: 1.5rem;          /* 24px */
  --font-size-3xl: 2rem;            /* 32px */

  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.2;
  --line-height-base: 1.5;
  --line-height-relaxed: 1.75;

  /* Spacing */
  --space-xs: 0.25rem;              /* 4px */
  --space-sm: 0.5rem;               /* 8px */
  --space-md: 1rem;                 /* 16px */
  --space-lg: 1.5rem;               /* 24px */
  --space-xl: 2rem;                 /* 32px */
  --space-2xl: 3rem;                /* 48px */
  --space-3xl: 4rem;                /* 64px */

  /* Border Radius */
  --radius-none: 0;
  --radius-sm: 0.25rem;             /* 4px */
  --radius-base: 0.5rem;            /* 8px */
  --radius-lg: 1rem;                /* 16px */

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.7);
  --shadow-xl: 0 16px 32px rgba(0, 0, 0, 0.8);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;

  /* Z-index Scale */
  --z-base: 0;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-bg: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
  --z-notification: 800;

  /* Layout */
  --layout-navbar-height: 44px;
  --layout-tabbar-height: 48px;
  --layout-sidebar-width: 320px;
  --layout-sidebar-width-collapsed: 0px;

  /* Line Heights */
  --lh-tight: 1.25;
  --lh-normal: 1.5;
  --lh-relaxed: 1.75;
}

/* Dark mode (default) */
@media (prefers-color-scheme: light) {
  :root {
    /* Override with light theme if needed */
  }
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-base);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: var(--line-height-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-md);
}

h1 {
  font-size: var(--font-size-3xl);
}

h2 {
  font-size: var(--font-size-2xl);
}

h3 {
  font-size: var(--font-size-xl);
}

h4 {
  font-size: var(--font-size-lg);
}

h5 {
  font-size: var(--font-size-base);
}

h6 {
  font-size: var(--font-size-sm);
}

p {
  margin-bottom: var(--space-md);
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--color-accent-blue);
  text-decoration: none;
  cursor: pointer;
  transition: color var(--transition-fast);
}

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

ul, ol {
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
}

li {
  margin-bottom: var(--space-sm);
}

code, pre {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
  background-color: var(--color-bg-tertiary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
}

pre {
  padding: var(--space-md);
  overflow-x: auto;
  margin-bottom: var(--space-md);
}

/* --- APP SHELL LAYOUT --- */
html, body {
  height: 100%;
  width: 100%;
}

#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100%;
  overflow: hidden;
}

/* Top Navigation Bar */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--layout-navbar-height);
  background-color: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  padding: 0 var(--space-md);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  flex-shrink: 0;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
}

.navbar-brand-name {
  color: var(--color-brand-amber);
  letter-spacing: 0.05em;
}

.navbar-brand-icon {
  width: 28px;
  height: 28px;
  background-color: var(--color-brand-amber);
  border-radius: var(--radius-base);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-bg-primary);
  font-weight: var(--font-weight-bold);
  font-size: 12px;
}

.navbar-center {
  flex: 1;
  display: flex;
  justify-content: center;
}

.navbar-end {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.navbar-menu {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.navbar-item {
  color: var(--color-text-secondary);
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.navbar-item:hover {
  color: var(--color-text-primary);
}

.navbar-item.active {
  color: var(--color-accent-blue);
}

.navbar-status {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-success);
}

.status-indicator.warning {
  background-color: var(--color-warning);
}

.status-indicator.danger {
  background-color: var(--color-danger);
}

/* Main Content Area - Map-centric Layout */
.app-body {
  display: flex;
  flex-direction: row;
  height: calc(100vh - 44px);
  overflow: hidden;
  position: relative;
}

/* Icon Rail */
.icon-rail {
  width: 56px;
  min-width: 56px;
  background: #1a1d23;
  border-right: 1px solid #2d323c;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 0;
  gap: 2px;
  z-index: 300;
  overflow-y: auto;
  overflow-x: hidden;
}

.rail-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: none;
  background: transparent;
  color: #6b7280;
  cursor: pointer;
  border-radius: 8px;
  transition: all 0.15s ease;
  padding: 4px 0;
  position: relative;
}

.rail-btn:hover {
  background: #2d323c;
  color: #e0e4ec;
}

.rail-btn.active {
  background: #2d323c;
  color: #4a90d9;
}

.rail-btn.active::before {
  content: '';
  position: absolute;
  left: -4px;
  top: 8px;
  bottom: 8px;
  width: 3px;
  background: #4a90d9;
  border-radius: 0 2px 2px 0;
}

.rail-label {
  font-size: 9px;
  font-weight: 500;
  margin-top: 2px;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.rail-spacer {
  flex: 1;
}

/* Slide Panel */
.slide-panel {
  position: absolute;
  top: 0;
  left: 56px;
  width: 360px;
  height: 100%;
  background: #1e2128;
  border-right: 1px solid #2d323c;
  z-index: 250;
  display: flex;
  flex-direction: column;
  transform: translateX(-360px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.25s ease, opacity 0.25s ease;
  box-shadow: 4px 0 20px rgba(0, 0, 0, 0.3);
}

.slide-panel.open {
  transform: translateX(0);
  opacity: 1;
  pointer-events: auto;
}

.slide-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid #2d323c;
  min-height: 48px;
}

.slide-panel-header h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: #e0e4ec;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.slide-panel-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.slide-panel-close {
  background: none;
  border: none;
  color: #6b7280;
  font-size: 22px;
  cursor: pointer;
  padding: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: all 0.15s;
}

.slide-panel-close:hover {
  background: #2d323c;
  color: #e0e4ec;
}

.slide-panel-body {
  flex: 1;
  overflow-y: auto;
  padding: 0;
}

.panel-section {
  padding: 16px;
  border-bottom: 1px solid #2d323c;
}

.panel-section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: #8b92a0;
  margin: 0 0 12px 0;
}

.placeholder-panel {
  padding: 32px 16px;
  text-align: center;
  color: #8b92a0;
}

.placeholder-panel p {
  margin: 8px 0;
  font-size: 13px;
  line-height: 1.5;
}

/* Maintain old tabbar styles for backward compatibility (hidden) */
.main-content {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.content-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.tabbar {
  display: none;
}

.tabbar-item {
  display: none;
}

.tabbar-item-icon {
  display: none;
}

.tabbar-item-badge {
  display: none;
}

/* Page Container */
.page {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
}

.page-content {
  padding: var(--space-lg);
  max-width: 100%;
}

/* --- BUTTON STYLES --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border: none;
  border-radius: var(--radius-base);
  font-family: var(--font-family-base);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Primary Button */
.btn-primary {
  background-color: var(--color-accent-blue);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-accent-blue-light);
  box-shadow: var(--shadow-md);
}

.btn-primary:active:not(:disabled) {
  background-color: var(--color-accent-blue-dark);
}

/* Secondary Button */
.btn-secondary {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-bg-hover);
  border-color: var(--color-border-light);
}

.btn-secondary:active:not(:disabled) {
  background-color: var(--color-border);
}

/* Danger Button */
.btn-danger {
  background-color: var(--color-danger);
  color: white;
}

.btn-danger:hover:not(:disabled) {
  background-color: var(--color-danger-light);
  box-shadow: var(--shadow-md);
}

.btn-danger:active:not(:disabled) {
  background-color: var(--color-danger-dark);
}

/* Success Button */
.btn-success {
  background-color: var(--color-success);
  color: white;
}

.btn-success:hover:not(:disabled) {
  background-color: var(--color-success-light);
  box-shadow: var(--shadow-md);
}

.btn-success:active:not(:disabled) {
  background-color: var(--color-success-dark);
}

/* Icon Button */
.btn-icon {
  padding: var(--space-sm);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-base);
  background-color: transparent;
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
}

.btn-icon:hover:not(:disabled) {
  background-color: var(--color-bg-hover);
  color: var(--color-text-primary);
}

.btn-icon.active {
  background-color: var(--color-accent-blue);
  color: white;
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-base);
}

.btn-block {
  width: 100%;
}

/* Button Groups */
.btn-group {
  display: inline-flex;
  gap: 0;
  border-radius: var(--radius-base);
  overflow: hidden;
}

.btn-group .btn {
  border-radius: 0;
  border-right: 1px solid var(--color-border);
}

.btn-group .btn:last-child {
  border-right: none;
}

/* --- FORM INPUTS --- */
.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--space-md);
}

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

.form-input,
.form-select,
.form-textarea {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  font-family: var(--font-family-base);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-tertiary);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent-blue);
  box-shadow: 0 0 0 3px rgba(74, 144, 217, 0.1);
  background-color: var(--color-bg-secondary);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
  font-family: var(--font-family-mono);
}

.form-input[type="number"] {
  font-family: var(--font-family-mono);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-tertiary);
  cursor: not-allowed;
  opacity: 0.6;
}

/* Form Helper Text */
.form-help {
  display: block;
  margin-top: var(--space-xs);
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

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

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

/* --- MODAL / OVERLAY --- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal-bg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 90vw;
  max-height: 90vh;
  overflow: auto;
  z-index: var(--z-modal);
  transform: scale(0.95);
  transition: transform var(--transition-base);
}

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

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

.modal-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

.modal-close {
  background: none;
  border: none;
  font-size: var(--font-size-lg);
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

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

.modal-body {
  padding: var(--space-lg);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-md);
  padding: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

/* --- ALERTS / NOTIFICATIONS --- */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-base);
  border-left: 4px solid;
  margin-bottom: var(--space-md);
  font-size: var(--font-size-sm);
}

.alert-info {
  background-color: rgba(74, 144, 217, 0.1);
  border-left-color: var(--color-accent-blue);
  color: var(--color-text-primary);
}

.alert-success {
  background-color: rgba(74, 217, 122, 0.1);
  border-left-color: var(--color-success);
  color: var(--color-text-primary);
}

.alert-warning {
  background-color: rgba(212, 160, 23, 0.1);
  border-left-color: var(--color-warning);
  color: var(--color-text-primary);
}

.alert-danger {
  background-color: rgba(217, 74, 74, 0.1);
  border-left-color: var(--color-danger);
  color: var(--color-text-primary);
}

.alert-icon {
  flex-shrink: 0;
  font-size: var(--font-size-lg);
  margin-top: 2px;
}

.alert-content {
  flex: 1;
}

.alert-title {
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-xs);
}

.alert-close {
  flex-shrink: 0;
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: 0;
  transition: color var(--transition-fast);
}

.alert-close:hover {
  color: var(--color-text-primary);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  z-index: var(--z-notification);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  pointer-events: none;
}

.toast {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  padding: var(--space-md) var(--space-lg);
  box-shadow: var(--shadow-lg);
  max-width: 400px;
  pointer-events: auto;
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  animation: slideIn 300ms ease-out;
}

@keyframes slideIn {
  from {
    transform: translateX(400px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.toast.success {
  border-left: 4px solid var(--color-success);
}

.toast.warning {
  border-left: 4px solid var(--color-warning);
}

.toast.danger {
  border-left: 4px solid var(--color-danger);
}

.toast-content {
  flex: 1;
}

.toast-message {
  margin: 0;
  font-size: var(--font-size-sm);
}

/* --- SCROLLBAR STYLING --- */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background-color: var(--color-border);
  border-radius: 4px;
  border: 2px solid transparent;
  background-clip: content-box;
}

::-webkit-scrollbar-thumb:hover {
  background-color: var(--color-border-light);
  background-clip: content-box;
}

/* Firefox Scrollbar */
* {
  scrollbar-color: var(--color-border) transparent;
  scrollbar-width: thin;
}

/* --- UTILITY CLASSES --- */

/* Display */
.d-none {
  display: none !important;
}

.d-block {
  display: block !important;
}

.d-inline {
  display: inline !important;
}

.d-inline-block {
  display: inline-block !important;
}

.d-flex {
  display: flex !important;
}

.d-grid {
  display: grid !important;
}

.d-contents {
  display: contents !important;
}

/* Flex Properties */
.flex-row {
  flex-direction: row !important;
}

.flex-column {
  flex-direction: column !important;
}

.flex-wrap {
  flex-wrap: wrap !important;
}

.flex-nowrap {
  flex-wrap: nowrap !important;
}

.flex-1 {
  flex: 1 !important;
}

.flex-auto {
  flex: auto !important;
}

.flex-none {
  flex: none !important;
}

/* Alignment */
.items-start {
  align-items: flex-start !important;
}

.items-center {
  align-items: center !important;
}

.items-end {
  align-items: flex-end !important;
}

.items-stretch {
  align-items: stretch !important;
}

.justify-start {
  justify-content: flex-start !important;
}

.justify-center {
  justify-content: center !important;
}

.justify-end {
  justify-content: flex-end !important;
}

.justify-between {
  justify-content: space-between !important;
}

.justify-around {
  justify-content: space-around !important;
}

.justify-evenly {
  justify-content: space-evenly !important;
}

.gap-xs {
  gap: var(--space-xs) !important;
}

.gap-sm {
  gap: var(--space-sm) !important;
}

.gap-md {
  gap: var(--space-md) !important;
}

.gap-lg {
  gap: var(--space-lg) !important;
}

.gap-xl {
  gap: var(--space-xl) !important;
}

/* Spacing */
.m-0 { margin: 0 !important; }
.m-xs { margin: var(--space-xs) !important; }
.m-sm { margin: var(--space-sm) !important; }
.m-md { margin: var(--space-md) !important; }
.m-lg { margin: var(--space-lg) !important; }
.m-xl { margin: var(--space-xl) !important; }

.mx-auto {
  margin-left: auto !important;
  margin-right: auto !important;
}

.my-auto {
  margin-top: auto !important;
  margin-bottom: auto !important;
}

.p-0 { padding: 0 !important; }
.p-xs { padding: var(--space-xs) !important; }
.p-sm { padding: var(--space-sm) !important; }
.p-md { padding: var(--space-md) !important; }
.p-lg { padding: var(--space-lg) !important; }
.p-xl { padding: var(--space-xl) !important; }

.px-md {
  padding-left: var(--space-md) !important;
  padding-right: var(--space-md) !important;
}

.py-md {
  padding-top: var(--space-md) !important;
  padding-bottom: var(--space-md) !important;
}

/* Sizing */
.w-full {
  width: 100% !important;
}

.h-full {
  height: 100% !important;
}

.w-screen {
  width: 100vw !important;
}

.h-screen {
  height: 100vh !important;
}

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

.visible {
  visibility: visible !important;
}

.invisible {
  visibility: hidden !important;
}

/* Text Utilities */
.text-left {
  text-align: left !important;
}

.text-center {
  text-align: center !important;
}

.text-right {
  text-align: right !important;
}

.text-primary {
  color: var(--color-text-primary) !important;
}

.text-secondary {
  color: var(--color-text-secondary) !important;
}

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

.text-warning {
  color: var(--color-warning) !important;
}

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

.text-accent {
  color: var(--color-accent-blue) !important;
}

.text-xs { font-size: var(--font-size-xs) !important; }
.text-sm { font-size: var(--font-size-sm) !important; }
.text-base { font-size: var(--font-size-base) !important; }
.text-lg { font-size: var(--font-size-lg) !important; }
.text-xl { font-size: var(--font-size-xl) !important; }
.text-2xl { font-size: var(--font-size-2xl) !important; }

.font-light { font-weight: var(--font-weight-light) !important; }
.font-normal { font-weight: var(--font-weight-normal) !important; }
.font-medium { font-weight: var(--font-weight-medium) !important; }
.font-semibold { font-weight: var(--font-weight-semibold) !important; }
.font-bold { font-weight: var(--font-weight-bold) !important; }

.font-mono {
  font-family: var(--font-family-mono) !important;
}

.tracking-wider {
  letter-spacing: 0.05em !important;
}

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Background Colors */
.bg-primary {
  background-color: var(--color-bg-primary) !important;
}

.bg-secondary {
  background-color: var(--color-bg-secondary) !important;
}

.bg-tertiary {
  background-color: var(--color-bg-tertiary) !important;
}

.bg-success {
  background-color: rgba(74, 217, 122, 0.1) !important;
}

.bg-warning {
  background-color: rgba(212, 160, 23, 0.1) !important;
}

.bg-danger {
  background-color: rgba(217, 74, 74, 0.1) !important;
}

/* Border Utilities */
.border {
  border: 1px solid var(--color-border) !important;
}

.border-t {
  border-top: 1px solid var(--color-border) !important;
}

.border-b {
  border-bottom: 1px solid var(--color-border) !important;
}

.border-l {
  border-left: 1px solid var(--color-border) !important;
}

.border-r {
  border-right: 1px solid var(--color-border) !important;
}

.rounded-sm {
  border-radius: var(--radius-sm) !important;
}

.rounded {
  border-radius: var(--radius-base) !important;
}

.rounded-lg {
  border-radius: var(--radius-lg) !important;
}

.rounded-full {
  border-radius: 9999px !important;
}

/* Opacity */
.opacity-50 {
  opacity: 0.5 !important;
}

.opacity-75 {
  opacity: 0.75 !important;
}

/* Shadows */
.shadow-sm {
  box-shadow: var(--shadow-sm) !important;
}

.shadow-md {
  box-shadow: var(--shadow-md) !important;
}

.shadow-lg {
  box-shadow: var(--shadow-lg) !important;
}

/* Transitions */
.transition-fast {
  transition: all var(--transition-fast) !important;
}

.transition-base {
  transition: all var(--transition-base) !important;
}

.transition-slow {
  transition: all var(--transition-slow) !important;
}

/* Cursor */
.cursor-pointer {
  cursor: pointer !important;
}

.cursor-not-allowed {
  cursor: not-allowed !important;
}

/* --- RESPONSIVE: TABLET (≤1024px) --- */
@media (max-width: 1024px) {
  .slide-panel {
    width: 320px;
    transform: translateX(-320px);
  }

  .navbar-brand-name {
    display: none;
  }

  .hidden-md {
    display: none !important;
  }
}

/* --- RESPONSIVE: PHONE LANDSCAPE & SMALL TABLET (≤768px) --- */
@media (max-width: 768px) {
  .navbar-brand-name {
    display: none;
  }

  .navbar-center {
    display: none;
  }

  /* Icon rail becomes bottom bar */
  .icon-rail {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    min-width: unset;
    height: 56px;
    flex-direction: row;
    justify-content: space-around;
    border-right: none;
    border-top: 1px solid #2d323c;
    padding: 0 4px;
    gap: 0;
    z-index: 400;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
  }

  .rail-btn {
    width: 44px;
    height: 48px;
    min-width: 44px;
  }

  .rail-btn.active::before {
    left: 8px;
    right: 8px;
    top: auto;
    bottom: 0;
    width: auto;
    height: 3px;
    border-radius: 2px 2px 0 0;
  }

  .rail-label {
    font-size: 8px;
  }

  /* App body adjusts for bottom rail */
  .app-body {
    height: calc(100vh - 44px - 56px);
  }

  /* Slide panels become full-width overlays */
  .slide-panel {
    left: 0;
    width: 100%;
    transform: translateX(-100%);
    z-index: 350;
  }

  .page-content {
    padding: var(--space-md);
  }

  .hidden-sm {
    display: none !important;
  }
}

/* --- RESPONSIVE: PHONE PORTRAIT (≤480px) --- */
@media (max-width: 480px) {
  :root {
    --layout-navbar-height: 40px;
    --font-size-base: 13px;
  }

  .navbar {
    padding: 0 var(--space-sm);
    height: 40px;
  }

  .navbar-brand-icon {
    width: 24px;
    height: 24px;
  }

  .app-body {
    height: calc(100vh - 40px - 56px);
  }

  .icon-rail {
    height: 52px;
  }

  .rail-btn {
    width: 38px;
    height: 44px;
    min-width: 38px;
  }

  .rail-label {
    font-size: 7px;
  }

  .slide-panel-header h2 {
    font-size: 14px;
  }

  .hidden-xs {
    display: none !important;
  }
}

/* --- SAFE AREA (notched phones) --- */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  .icon-rail {
    padding-bottom: env(safe-area-inset-bottom);
  }
}

/* --- TOUCH OPTIMIZATION --- */
@media (pointer: coarse) {
  .rail-btn,
  .tool-btn,
  .layer-toggle,
  .coord-fmt-btn,
  .btn {
    min-height: 36px;
    min-width: 36px;
  }

  .waypoint-item {
    padding: 12px;
  }

  #map-container {
    touch-action: pan-x pan-y;
  }
}