/**
 * Flux Energy Design System Improvements
 * 
 * This file contains critical design system enhancements identified
 * in the UI/UX Design Audit. Add these to the top of styles.css after
 * the existing CSS variables section.
 * 
 * Implementation Priority: CRITICAL/HIGH
 */

/* ============================================
   ENHANCED TYPOGRAPHY SYSTEM
   ============================================ */

:root {
  /* Typography Scale (8-size system) */
  --font-size-xs: 0.75rem; /* 12px - Captions, badges */
  --font-size-sm: 0.875rem; /* 14px - Small text */
  --font-size-base: 1rem; /* 16px - Body text */
  --font-size-md: 1.125rem; /* 18px - Emphasized text */
  --font-size-lg: 1.25rem; /* 20px - Small headings */
  --font-size-xl: 1.5rem; /* 24px - Section headings */
  --font-size-2xl: 2rem; /* 32px - Page headings */
  --font-size-3xl: 2.5rem; /* 40px - Display */

  /* Font Weights */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Line Heights */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Letter Spacing */
  --letter-spacing-tight: -0.025em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.025em;
}

/* ============================================
   SEMANTIC COLOR TOKENS
   ============================================ */

:root {
  /* Text Colors */
  --color-text-primary: var(--gray-900);
  --color-text-secondary: var(--gray-800);
  --color-text-tertiary: var(--gray-700);
  --color-text-inverse: #ffffff;
  --color-text-link: var(--primary-purple);
  --color-text-link-hover: #4f46e5;

  /* Background Colors */
  --color-background-primary: #ffffff;
  --color-background-secondary: var(--gray-50);
  --color-background-tertiary: var(--gray-100);

  /* Border Colors */
  --color-border-default: var(--gray-200);
  --color-border-strong: var(--gray-300);
  --color-border-subtle: var(--gray-100);

  /* Status Background Colors (light) */
  --color-bg-success: rgba(16, 185, 129, 0.1);
  --color-bg-warning: rgba(245, 158, 11, 0.1);
  --color-bg-danger: rgba(239, 68, 68, 0.1);
  --color-bg-info: rgba(59, 130, 246, 0.1);
}

/* ============================================
   ENHANCED SPACING SYSTEM
   ============================================ */

:root {
  /* Additional spacing values */
  --spacing-2xs: 0.125rem; /* 2px */
  --spacing-base: 0.75rem; /* 12px */
  --spacing-3xl: 4rem; /* 64px */
  --spacing-4xl: 6rem; /* 96px */
}

/* ============================================
   TRANSITION & ANIMATION SYSTEM
   ============================================ */

:root {
  /* Transition Durations */
  --transition-fast: 0.15s;
  --transition-normal: 0.2s;
  --transition-slow: 0.3s;
  --transition-extra-slow: 0.5s;

  /* Easing Functions */
  --easing-default: ease;
  --easing-in: ease-in;
  --easing-out: ease-out;
  --easing-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --easing-sharp: cubic-bezier(0.4, 0, 0.6, 1);
}

/* ============================================
   TYPOGRAPHY UTILITY CLASSES
   ============================================ */

/* Font Sizes */
.text-xs {
  font-size: var(--font-size-xs);
}
.text-sm {
  font-size: var(--font-size-sm);
}
.text-base {
  font-size: var(--font-size-base);
}
.text-md {
  font-size: var(--font-size-md);
}
.text-lg {
  font-size: var(--font-size-lg);
}
.text-xl {
  font-size: var(--font-size-xl);
}
.text-2xl {
  font-size: var(--font-size-2xl);
}
.text-3xl {
  font-size: var(--font-size-3xl);
}

/* Font Weights */
.font-normal {
  font-weight: var(--font-weight-normal);
}
.font-medium {
  font-weight: var(--font-weight-medium);
}
.font-semibold {
  font-weight: var(--font-weight-semibold);
}
.font-bold {
  font-weight: var(--font-weight-bold);
}

/* Line Heights */
.leading-tight {
  line-height: var(--line-height-tight);
}
.leading-normal {
  line-height: var(--line-height-normal);
}
.leading-relaxed {
  line-height: var(--line-height-relaxed);
}

/* Text Colors */
.text-primary {
  color: var(--color-text-primary);
}
.text-secondary {
  color: var(--color-text-secondary);
}
.text-tertiary {
  color: var(--color-text-tertiary);
}
.text-inverse {
  color: var(--color-text-inverse);
}
.text-success {
  color: var(--success);
}
.text-warning {
  color: var(--warning);
}
.text-danger {
  color: var(--danger);
}
.text-info {
  color: var(--info);
}

/* Text Transforms */
.uppercase {
  text-transform: uppercase;
}
.lowercase {
  text-transform: lowercase;
}
.capitalize {
  text-transform: capitalize;
}

/* Letter Spacing */
.tracking-tight {
  letter-spacing: var(--letter-spacing-tight);
}
.tracking-normal {
  letter-spacing: var(--letter-spacing-normal);
}
.tracking-wide {
  letter-spacing: var(--letter-spacing-wide);
}

/* ============================================
   HEADING HIERARCHY
   ============================================ */

h1,
.heading-1 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  margin: 0;
}

h2,
.heading-2 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  margin: 0;
}

h3,
.heading-3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  margin: 0;
}

h4,
.heading-4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  margin: 0;
}

h5,
.heading-5 {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  margin: 0;
}

h6,
.heading-6 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  margin: 0;
}

/* ============================================
   COLOR UTILITY CLASSES
   ============================================ */

/* Legend Dots (replace inline styles) */
.legend-dot-green {
  background: var(--primary-green);
}
.legend-dot-purple {
  background: var(--primary-purple);
}
.legend-dot-warning {
  background: var(--warning);
}
.legend-dot-danger {
  background: var(--danger);
}
.legend-dot-info {
  background: var(--info);
}
.legend-dot-success {
  background: var(--success);
}

/* Background Colors */
.bg-primary {
  background: var(--color-background-primary);
}
.bg-secondary {
  background: var(--color-background-secondary);
}
.bg-tertiary {
  background: var(--color-background-tertiary);
}
.bg-success-light {
  background: var(--color-bg-success);
}
.bg-warning-light {
  background: var(--color-bg-warning);
}
.bg-danger-light {
  background: var(--color-bg-danger);
}
.bg-info-light {
  background: var(--color-bg-info);
}

/* Border Colors */
.border-default {
  border-color: var(--color-border-default);
}
.border-strong {
  border-color: var(--color-border-strong);
}
.border-success {
  border-color: var(--success);
}
.border-warning {
  border-color: var(--warning);
}
.border-danger {
  border-color: var(--danger);
}
.border-info {
  border-color: var(--info);
}

/* ============================================
   LAYOUT UTILITY CLASSES
   ============================================ */

/* Grid Layouts */
.grid-two-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

.grid-three-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.grid-four-columns {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

/* Flexbox Utilities */
.flex-row {
  display: flex;
  flex-direction: row;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

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

.items-start {
  align-items: flex-start;
}
.items-center {
  align-items: center;
}
.items-end {
  align-items: flex-end;
}

.justify-start {
  justify-content: flex-start;
}
.justify-center {
  justify-content: center;
}
.justify-end {
  justify-content: flex-end;
}
.justify-between {
  justify-content: space-between;
}

/* Gap Utilities */
.gap-xs {
  gap: var(--spacing-xs);
}
.gap-sm {
  gap: var(--spacing-sm);
}
.gap-base {
  gap: var(--spacing-base);
}
.gap-md {
  gap: var(--spacing-md);
}
.gap-lg {
  gap: var(--spacing-lg);
}
.gap-xl {
  gap: var(--spacing-xl);
}

/* ============================================
   ENHANCED BUTTON SYSTEM
   ============================================ */

/* Button Size Variants (align with styles.css --btn-* tokens) */
.btn-sm {
  min-height: 2rem;
  padding: 0.35rem 0.75rem;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
}

.btn-md {
  min-height: 2.5rem;
  padding: var(--btn-padding-y, 0.5625rem) var(--btn-padding-x, 1.25rem);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
}

.btn-lg {
  min-height: 2.75rem;
  padding: 0.65rem 1.5rem;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-lg);
}

/* Icon Button */
.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-default);
  background: var(--color-background-primary);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-normal) var(--easing-default);
}

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

.btn-icon.btn-icon-sm {
  width: 32px;
  height: 32px;
}

.btn-icon.btn-icon-lg {
  width: 48px;
  height: 48px;
}

/* Button Loading State */
.btn-loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.btn-loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-radius: 50%;
  border-top-color: transparent;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

/* Button Disabled State */
.btn-primary:disabled,
.btn-secondary:disabled,
.btn-link:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ============================================
   ENHANCED FORM SYSTEM
   ============================================ */

/* Form Labels */
.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.form-label-required::after {
  content: '*';
  color: var(--danger);
  margin-left: 4px;
}

/* Input Base Styles Enhancement */
input:not([type='checkbox']):not([type='radio']),
select,
textarea {
  transition: all var(--transition-normal) var(--easing-default);
}

/* Form Select */
.form-select {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-default);
  background: var(--color-background-primary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-normal) var(--easing-default);
}

.form-select:hover {
  border-color: var(--color-border-strong);
}

.form-select:focus {
  outline: 2px solid var(--primary-green);
  outline-offset: 2px;
  border-color: var(--primary-green);
}

/* Input States */
.input-error,
input.error,
select.error,
textarea.error {
  border-color: var(--danger) !important;
}

.input-error:focus,
input.error:focus,
select.error:focus,
textarea.error:focus {
  outline-color: var(--danger) !important;
  box-shadow: 0 0 0 3px var(--color-bg-danger) !important;
}

.input-success,
input.success {
  border-color: var(--success) !important;
}

.input-success:focus,
input.success:focus {
  outline-color: var(--success) !important;
  box-shadow: 0 0 0 3px var(--color-bg-success) !important;
}

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

/* Helper & Error Text */
.form-helper-text {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-top: var(--spacing-xs);
  display: block;
}

.form-error-text {
  font-size: var(--font-size-xs);
  color: var(--danger);
  margin-top: var(--spacing-xs);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.form-error-text::before {
  content: '⚠';
  font-size: 1rem;
}

.form-success-text {
  font-size: var(--font-size-xs);
  color: var(--success);
  margin-top: var(--spacing-xs);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.form-success-text::before {
  content: '✓';
  font-size: 1rem;
}

/* Form Group */
.form-group {
  margin-bottom: var(--spacing-lg);
}

/* ============================================
   ENHANCED FOCUS STATES
   ============================================ */

/* Universal focus visible pattern */
*:focus-visible {
  outline: 2px solid var(--primary-green);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

button:focus-visible {
  outline: 2px solid var(--primary-green);
  outline-offset: 2px;
}

a:focus-visible {
  outline: 2px solid var(--primary-green);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--primary-green);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

/* ============================================
   LOADING STATES
   ============================================ */

/* Spinner */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-border-default);
  border-top-color: var(--primary-green);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.spinner-sm {
  width: 16px;
  height: 16px;
  border-width: 2px;
}

.spinner-lg {
  width: 32px;
  height: 32px;
  border-width: 3px;
}

/* Skeleton Loader */
.skeleton {
  background: linear-gradient(90deg, var(--gray-200) 0%, var(--gray-100) 50%, var(--gray-200) 100%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

.skeleton-text {
  height: 1em;
  margin-bottom: 0.5em;
}

.skeleton-heading {
  height: 2em;
  margin-bottom: 1em;
}

.skeleton-card {
  height: 200px;
}

/* ============================================
   EMPTY STATES
   ============================================ */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
  text-align: center;
  color: var(--color-text-tertiary);
}

.empty-state-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-lg);
  opacity: 0.5;
}

.empty-state-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}

.empty-state-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  max-width: 400px;
  margin-bottom: var(--spacing-lg);
}

/* ============================================
   NOTIFICATION BARS & ALERTS
   ============================================ */

/* Batch Actions Bar */
.batch-actions-bar {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

/* Info Reminder Bar */
.info-reminder {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: var(--radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-sm);
  color: #166534;
}

/* Batch Actions Content */
.batch-actions-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.batch-actions-title {
  font-weight: var(--font-weight-semibold);
  color: #0c4a6e;
}

.batch-total-amount {
  margin-left: var(--spacing-md);
  color: var(--success);
  font-weight: var(--font-weight-medium);
}

.batch-actions-buttons {
  margin-left: auto;
  display: flex;
  gap: var(--spacing-sm);
}

/* Max Height Utilities */
.max-h-300 {
  max-height: 300px;
}
.max-h-400 {
  max-height: 400px;
}
.max-h-500 {
  max-height: 500px;
}

/* Table Cell Utilities */
.text-loading {
  text-align: center;
  padding: var(--spacing-lg);
  color: var(--color-text-secondary);
}

/* ============================================
   API CONFIGURATION CARDS
   ============================================ */

/* Configuration Grid */
.config-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

/* Configuration Card Variants */
.config-card {
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-default);
}

.config-card-default {
  background: var(--gray-50);
  border-color: var(--gray-200);
}

.config-card-highlight {
  background: #f0f9ff;
  border-color: #bfdbfe;
}

.config-card-title {
  margin: 0 0 var(--spacing-md) 0;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
}

.config-card-description {
  margin: 0 0 var(--spacing-md) 0;
  font-size: var(--font-size-sm);
  color: #1e40af;
}

.config-card-description-muted {
  margin: 0 0 var(--spacing-md) 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* Form Group */
.form-group-config {
  margin-bottom: var(--spacing-md);
}

.form-label-config {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.form-input-full {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  box-sizing: border-box;
  transition: all var(--transition-normal) var(--easing-default);
}

.form-input-full:focus {
  outline: 2px solid var(--primary-green);
  outline-offset: 2px;
  border-color: var(--primary-green);
}

.form-input-highlight {
  border-color: #bfdbfe;
}

.form-input-highlight:focus {
  border-color: var(--info);
  outline-color: var(--info);
}

/* Button Group */
.button-group {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.button-group .btn-secondary,
.button-group .btn-primary {
  margin-bottom: var(--spacing-sm);
}

/* Status Message */
.status-message {
  margin-top: var(--spacing-sm);
  font-size: var(--font-size-xs);
  min-height: 1.5rem;
}

/* Integration Checklist */
.integration-checklist {
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-xl);
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-default);
}

.integration-checklist-title {
  margin: 0 0 var(--spacing-lg) 0;
}

.integration-checklist-description {
  margin: 0 0 var(--spacing-lg) 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.checklist-items {
  margin-bottom: var(--spacing-lg);
}

.warning-box {
  background: #fff9e6;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  border-left: 4px solid #fbbf24;
  margin-top: var(--spacing-lg);
}

.warning-box-title {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: var(--font-weight-semibold);
}

.warning-box ul {
  margin: 0;
  padding-left: var(--spacing-lg);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

/* Go Live Section */
.go-live-section {
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-xl);
  background: #f3fef7;
  border-radius: var(--radius-lg);
  border: 2px solid var(--primary-green);
}

.go-live-title {
  margin: 0 0 var(--spacing-sm) 0;
}

.go-live-description {
  margin: 0 0 var(--spacing-lg) 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.btn-go-live {
  background: var(--primary-green);
  color: #000;
  border: none;
  padding: var(--spacing-md) var(--spacing-xl);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal) var(--easing-default);
}

.btn-go-live:hover {
  background: #00bfa0;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ============================================
   MODAL UTILITIES
   ============================================ */

/* Modal Body with Scrolling */
.modal-body-scrollable {
  max-height: 80vh;
  overflow-y: auto;
}

/* Modal Descriptions */
.modal-description {
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-md) 0;
}

/* Modal Paragraphs & Text */
.modal-body p {
  color: var(--color-text-primary);
}

.modal-body label {
  color: var(--color-text-primary);
}

.modal-body h3,
.modal-body h4 {
  color: var(--color-text-primary);
}

.modal-body span:not([class*='badge']):not([class*='status']):not([class*='indicator']) {
  color: var(--color-text-primary);
}

/* Credential Tab Content */
.credentials-tab h3 {
  margin-top: 0;
  color: var(--color-text-primary);
}

.credentials-tab-description {
  color: var(--color-text-primary);
}

/* Checkbox Labels */
.credential-checkbox label {
  margin: 0;
}

/* Modal Footer Text */
.modal-footer-note {
  color: var(--color-text-primary);
  font-size: var(--font-size-xs);
  margin: var(--spacing-md) 0 0 0;
}

/* ============================================
   CSV IMPORT & MODAL COMPONENTS
   ============================================ */

/* CSV Import Wrapper */
.csv-import-wrapper {
  padding: var(--spacing-lg);
}

.import-instructions {
  background: #f0f9ff;
  border: 1px solid var(--info);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

/* Import Tabs */
.import-tabs {
  display: flex;
  gap: var(--spacing-sm);
  border-bottom: 2px solid var(--color-border-default);
  margin-bottom: var(--spacing-lg);
  overflow-x: auto;
}

.import-tab {
  padding: var(--spacing-md);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
  border-bottom: 3px solid transparent;
  transition: all var(--transition-normal) var(--easing-default);
}

.import-tab:hover {
  color: var(--info);
}

.import-tab.active {
  color: var(--info);
  border-bottom-color: var(--info);
}

.import-tab-content {
  display: none;
}

.import-tab-content.active {
  display: block;
}

/* Import Sections */
.import-section {
  margin-bottom: var(--spacing-lg);
}

.import-section h4 {
  margin: 0 0 var(--spacing-md) 0;
  color: var(--color-text-primary);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
}

.field-help {
  color: var(--color-text-primary);
  margin: var(--spacing-sm) 0;
  font-size: var(--font-size-sm);
}

/* CSV Columns List */
.csv-columns {
  background: var(--color-background-secondary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-lg);
  margin: var(--spacing-md) 0;
  font-size: var(--font-size-sm);
  list-style: none;
}

.csv-columns li {
  padding: var(--spacing-xs) 0;
  color: var(--color-text-primary);
}

.csv-columns strong {
  color: var(--info);
  font-family: 'Courier New', monospace;
}

/* File Upload Area */
.file-upload-area {
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  text-align: center;
  margin: var(--spacing-md) 0;
  background: var(--gray-50);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.csv-input {
  display: none;
}

.file-label {
  display: inline-flex;
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--info);
  color: white;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-normal) var(--easing-default);
}

.file-label:hover {
  background: #0284c7;
  transform: translateY(-1px);
}

/* CSV Preview Table */
.csv-preview-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-md) 0;
  font-size: var(--font-size-xs);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
}

.csv-preview-table th,
.csv-preview-table td {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border-default);
}

.csv-preview-table th {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  background: var(--color-background-secondary);
}

/* Import Status */
.import-status {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin: var(--spacing-md) 0;
}

.import-status.success {
  background: var(--color-bg-success);
  border: 1px solid var(--success);
  color: #047857;
}

.import-status.error {
  background: var(--color-bg-danger);
  border: 1px solid var(--danger);
  color: #dc2626;
}

.import-status.loading {
  background: var(--color-bg-info);
  border: 1px solid var(--info);
  color: #0284c7;
}

/* ============================================
   API CREDENTIALS MODAL STYLES
   ============================================ */

/* Credentials Tabs */
.credentials-tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin: var(--spacing-md) 0;
  border-bottom: 1px solid var(--color-border-default);
}

.credentials-tabs button {
  padding: var(--spacing-md);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
  border-bottom: 2px solid transparent;
  transition: all var(--transition-normal) var(--easing-default);
}

.credentials-tabs button.active {
  color: var(--accent-text);
  border-bottom-color: var(--primary-green);
}

.credentials-tab {
  display: none;
}

.credentials-tab.active {
  display: block;
}

/* Status Indicator */
.status-indicator {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-right: var(--spacing-sm);
}

.status-indicator.configured {
  background: var(--success);
}

.status-indicator.unconfigured {
  background: var(--gray-300);
}

/* Credential Fields */
.credential-field {
  margin: var(--spacing-md) 0;
}

.credential-field label {
  display: block;
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

.credential-field input,
.credential-field select {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  transition: all var(--transition-normal) var(--easing-default);
}

.credential-field input:focus:not(:focus-visible),
.credential-field select:focus:not(:focus-visible) {
  outline: none;
  border-color: var(--primary-green);
  box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

/* Credential Actions */
.credential-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin: var(--spacing-md) 0;
}

.credential-actions button {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
}

/* Credential Checkbox */
.credential-checkbox {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin: var(--spacing-md) 0;
}

.credential-checkbox input {
  margin: 0;
}

/* ============================================
   RESPONSIVE BREAKPOINTS
   ============================================ */

:root {
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
}

/* Responsive Typography */
@media (max-width: 768px) {
  :root {
    --font-size-3xl: 2rem; /* 40px → 32px */
    --font-size-2xl: 1.75rem; /* 32px → 28px */
    --font-size-xl: 1.25rem; /* 24px → 20px */
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-3xl: 1.75rem; /* 40px → 28px */
    --font-size-2xl: 1.5rem; /* 32px → 24px */
    --font-size-xl: 1.125rem; /* 24px → 18px */
  }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

/* Display */
.block {
  display: block;
}
.inline-block {
  display: inline-block;
}
.inline {
  display: inline;
}
.hidden {
  display: none;
}

/* Position */
.relative {
  position: relative;
}
.absolute {
  position: absolute;
}
.fixed {
  position: fixed;
}
.sticky {
  position: sticky;
}

/* Overflow */
.overflow-hidden {
  overflow: hidden;
}
.overflow-auto {
  overflow: auto;
}
.overflow-scroll {
  overflow: scroll;
}

/* Width */
.w-full {
  width: 100%;
}
.w-auto {
  width: auto;
}

/* Text Alignment */
.text-left {
  text-align: left;
}
.text-center {
  text-align: center;
}
.text-right {
  text-align: right;
}

/* Cursor */
.cursor-pointer {
  cursor: pointer;
}
.cursor-not-allowed {
  cursor: not-allowed;
}

/* User Select */
.select-none {
  user-select: none;
}

/* Opacity */
.opacity-0 {
  opacity: 0;
}
.opacity-50 {
  opacity: 0.5;
}
.opacity-100 {
  opacity: 1;
}

/* Pointer Events */
.pointer-events-none {
  pointer-events: none;
}
.pointer-events-auto {
  pointer-events: auto;
}

/* Z-Index */
.z-0 {
  z-index: 0;
}
.z-10 {
  z-index: 10;
}
.z-20 {
  z-index: 20;
}
.z-30 {
  z-index: 30;
}
.z-40 {
  z-index: 40;
}
.z-50 {
  z-index: 50;
}

/* Flex Utilities */
.flex-1 {
  flex: 1;
}
.flex-auto {
  flex: auto;
}
.flex-none {
  flex: none;
}
.flex-shrink-0 {
  flex-shrink: 0;
}

/* Max Width */
.max-w-xs {
  max-width: 320px;
}
.max-w-sm {
  max-width: 480px;
}
.max-w-md {
  max-width: 640px;
}
.max-w-lg {
  max-width: 768px;
}
.max-w-xl {
  max-width: 1024px;
}
.max-w-2xl {
  max-width: 1280px;
}
.max-w-full {
  max-width: 100%;
}

/* Min Height */
.min-h-screen {
  min-height: 100vh;
}
.min-h-full {
  min-height: 100%;
}

/* Grid Column Span */
.col-span-2 {
  grid-column: span 2;
}
.col-span-3 {
  grid-column: span 3;
}
.col-span-4 {
  grid-column: span 4;
}

/* Border Utilities */
.border-top {
  border-top: 1px solid var(--color-border-default);
}
.border-bottom {
  border-bottom: 1px solid var(--color-border-default);
}
.border-left {
  border-left: 1px solid var(--color-border-default);
}
.border-right {
  border-right: 1px solid var(--color-border-default);
}

.border-left-info {
  border-left: 4px solid var(--info);
}
.border-left-success {
  border-left: 4px solid var(--success);
}
.border-left-warning {
  border-left: 4px solid var(--warning);
}
.border-left-danger {
  border-left: 4px solid var(--danger);
}

/* Padding Utilities */
.pt-xs {
  padding-top: var(--spacing-xs);
}
.pt-sm {
  padding-top: var(--spacing-sm);
}
.pt-base {
  padding-top: var(--spacing-base);
}
.pt-md {
  padding-top: var(--spacing-md);
}
.pt-lg {
  padding-top: var(--spacing-lg);
}

.pb-xs {
  padding-bottom: var(--spacing-xs);
}
.pb-sm {
  padding-bottom: var(--spacing-sm);
}
.pb-base {
  padding-bottom: var(--spacing-base);
}
.pb-md {
  padding-bottom: var(--spacing-md);
}
.pb-lg {
  padding-bottom: var(--spacing-lg);
}

/* Margin Utilities */
.mt-xs {
  margin-top: var(--spacing-xs);
}
.mt-sm {
  margin-top: var(--spacing-sm);
}
.mt-base {
  margin-top: var(--spacing-base);
}
.mt-md {
  margin-top: var(--spacing-md);
}
.mt-lg {
  margin-top: var(--spacing-lg);
}

.mb-xs {
  margin-bottom: var(--spacing-xs);
}
.mb-sm {
  margin-bottom: var(--spacing-sm);
}
.mb-base {
  margin-bottom: var(--spacing-base);
}
.mb-md {
  margin-bottom: var(--spacing-md);
}
.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.m-0 {
  margin: 0;
}
.mt-0 {
  margin-top: 0;
}
.mb-0 {
  margin-bottom: 0;
}

.ml-auto {
  margin-left: auto;
}
.mr-auto {
  margin-right: auto;
}

.mr-xs {
  margin-right: var(--spacing-xs);
}
.mr-sm {
  margin-right: var(--spacing-sm);
}
.mr-base {
  margin-right: var(--spacing-base);
}
.mr-md {
  margin-right: var(--spacing-md);
}

.ml-xs {
  margin-left: var(--spacing-xs);
}
.ml-sm {
  margin-left: var(--spacing-sm);
}
.ml-base {
  margin-left: var(--spacing-base);
}
.ml-md {
  margin-left: var(--spacing-md);
}

/* Status Badge Variants */
.status-error {
  background: var(--color-bg-danger);
  color: #991b1b;
}

.status-scheduled {
  background: var(--color-bg-info);
  color: #1e40af;
}

/* Reserve Bar Marker Positioning */
.reserve-bar-marker[data-position] {
  left: calc(var(--marker-position, 50) * 1%);
}

/* ============================================
   DARK MODE FOUNDATION (Optional Enhancement)
   ============================================ */

/* Dark mode color palette - ready to activate */
@media (prefers-color-scheme: dark) {
  /* Uncomment these variables to enable auto dark mode */
  /*
    :root {
        --color-text-primary: #F9FAFB;
        --color-text-secondary: #D1D5DB;
        --color-text-tertiary: #9CA3AF;
        
        --color-background-primary: #111827;
        --color-background-secondary: #1F2937;
        --color-background-tertiary: #374151;
        
        --color-border-default: #374151;
        --color-border-strong: #4B5563;
        --color-border-subtle: #1F2937;
        
        --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
        --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
        --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    }
    
    body {
        background-color: var(--color-background-primary);
        color: var(--color-text-primary);
    }
    
    .metric-card,
    .panel-card,
    .chart-card,
    .table-card {
        background: var(--color-background-secondary);
        border-color: var(--color-border-default);
    }
    */
}

/* Manual dark mode toggle class (add to <body> or <html>) */
.dark-mode {
  --color-text-primary: #f9fafb;
  --color-text-secondary: #d1d5db;
  --color-text-tertiary: #9ca3af;

  --color-background-primary: #111827;
  --color-background-secondary: #1f2937;
  --color-background-tertiary: #374151;

  --color-border-default: #374151;
  --color-border-strong: #4b5563;
  --color-border-subtle: #1f2937;

  background-color: var(--color-background-primary);
  color: var(--color-text-primary);
}

.dark-mode .metric-card,
.dark-mode .panel-card,
.dark-mode .chart-card,
.dark-mode .table-card {
  background: var(--color-background-secondary);
  border-color: var(--color-border-default);
}

.dark-mode .header {
  background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
  border-bottom-color: var(--color-border-default);
}

/* ============================================
   COMPONENT VARIATIONS
   ============================================ */

/* Alert Components */
.alert {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  border-left: 4px solid;
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: start;
  gap: var(--spacing-sm);
}

.alert-success {
  background: var(--color-bg-success);
  border-color: var(--success);
  color: #065f46;
}

.alert-warning {
  background: var(--color-bg-warning);
  border-color: var(--warning);
  color: #92400e;
}

.alert-danger {
  background: var(--color-bg-danger);
  border-color: var(--danger);
  color: #991b1b;
}

.alert-info {
  background: var(--color-bg-info);
  border-color: var(--info);
  color: #1e40af;
}

.alert-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.alert-content {
  flex: 1;
}

.alert-title {
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.alert-description {
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

/* Toast Notifications */
.toast {
  position: fixed;
  top: 2rem;
  right: 2rem;
  background: white;
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 400px;
  z-index: 9999;
  animation: slideInRight var(--transition-normal) var(--easing-out);
}

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

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

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

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

@media (max-width: 640px) {
  .toast {
    top: 1rem;
    right: 1rem;
    left: 1rem;
    max-width: none;
  }
}

/* Tooltip */
.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip-content {
  visibility: hidden;
  position: absolute;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gray-900);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  white-space: nowrap;
  z-index: 1000;
  opacity: 0;
  transition: opacity var(--transition-fast) var(--easing-out);
}

.tooltip-content::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--gray-900);
}

.tooltip:hover .tooltip-content {
  visibility: visible;
  opacity: 1;
}

/* Progress Bars */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--primary-green);
  border-radius: var(--radius-lg);
  transition: width var(--transition-slow) var(--easing-out);
}

.progress-bar-success .progress-bar-fill {
  background: var(--success);
}

.progress-bar-warning .progress-bar-fill {
  background: var(--warning);
}

.progress-bar-danger .progress-bar-fill {
  background: var(--danger);
}

/* Divider */
.divider {
  height: 1px;
  background: var(--color-border-default);
  margin: var(--spacing-lg) 0;
}

.divider-vertical {
  width: 1px;
  height: auto;
  background: var(--color-border-default);
  margin: 0 var(--spacing-md);
}

/* Avatar / Profile Picture */
.avatar {
  display: inline-block;
  border-radius: 50%;
  overflow: hidden;
  background: var(--gray-200);
}

.avatar-sm {
  width: 32px;
  height: 32px;
}

.avatar-md {
  width: 40px;
  height: 40px;
}

.avatar-lg {
  width: 48px;
  height: 48px;
}

.avatar-xl {
  width: 64px;
  height: 64px;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Chip / Tag Component */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: 500;
  background: var(--gray-100);
  color: var(--gray-700);
}

.chip-success {
  background: var(--color-bg-success);
  color: #065f46;
}

.chip-warning {
  background: var(--color-bg-warning);
  color: #92400e;
}

.chip-danger {
  background: var(--color-bg-danger);
  color: #991b1b;
}

.chip-info {
  background: var(--color-bg-info);
  color: #1e40af;
}

.chip-removable {
  padding-right: var(--spacing-xs);
}

.chip-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.1);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.chip-close:hover {
  background: rgba(0, 0, 0, 0.2);
}

/* Accordion Component */
.accordion {
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.accordion-item {
  border-bottom: 1px solid var(--color-border-default);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  width: 100%;
  padding: var(--spacing-md);
  background: var(--gray-50);
  border: none;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  transition: background var(--transition-fast);
}

.accordion-header:hover {
  background: var(--gray-100);
}

.accordion-icon {
  transition: transform var(--transition-normal);
}

.accordion-item.active .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal) var(--easing-out);
}

.accordion-item.active .accordion-content {
  max-height: 1000px;
}

.accordion-body {
  padding: var(--spacing-md);
}

/* ============================================
   RESPONSIVE ENHANCEMENTS
   ============================================ */

/* Responsive Table Wrapper */
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.table-responsive table {
  min-width: 600px;
  width: 100%;
}

/* Responsive Grid Classes */
.grid-responsive {
  display: grid;
  gap: var(--spacing-md);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-responsive-lg {
  display: grid;
  gap: var(--spacing-lg);
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

/* Mobile Stack Utility */
@media (max-width: 768px) {
  .mobile-stack {
    display: flex !important;
    flex-direction: column !important;
    gap: var(--spacing-md);
  }

  .mobile-stack > * {
    width: 100% !important;
  }
}

/* ============================================
   ENHANCED ANIMATIONS & TRANSITIONS
   ============================================ */

/* Smooth scroll behavior */
html {
  scroll-behavior: smooth;
}

/* Fade in animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn var(--transition-normal) var(--easing-out);
}

/* Slide in from right */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-right {
  animation: slideInRight var(--transition-normal) var(--easing-out);
}

/* Pulse animation for notifications */
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.05);
  }
}

.pulse {
  animation: pulse 2s var(--easing-in-out) infinite;
}

/* Shake animation for errors */
@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  10%,
  30%,
  50%,
  70%,
  90% {
    transform: translateX(-4px);
  }
  20%,
  40%,
  60%,
  80% {
    transform: translateX(4px);
  }
}

.shake {
  animation: shake 0.4s var(--easing-sharp);
}

/* Spin animation for loading */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.spin {
  animation: spin 1s linear infinite;
}

/* Bounce animation */
@keyframes bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.bounce {
  animation: bounce 0.6s var(--easing-out);
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* ============================================
   ENHANCED INTERACTIVE STATES
   ============================================ */

/* Better button hover states */
.btn-primary,
.btn-secondary {
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal) var(--easing-out);
}

.btn-primary::before,
.btn-secondary::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition:
    width var(--transition-slow) var(--easing-out),
    height var(--transition-slow) var(--easing-out);
}

.btn-primary:hover::before,
.btn-secondary:hover::before {
  width: 300px;
  height: 300px;
}

/* Card hover effects */
.metric-card,
.panel-card,
.chart-card {
  transition: all var(--transition-normal) var(--easing-out);
}

.metric-card:hover,
.panel-card:hover,
.chart-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Interactive links */
a:not(.btn-primary):not(.btn-secondary) {
  position: relative;
  transition: color var(--transition-fast) var(--easing-out);
}

a:not(.btn-primary):not(.btn-secondary)::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: currentColor;
  transition: width var(--transition-normal) var(--easing-out);
}

a:not(.btn-primary):not(.btn-secondary):hover::after {
  width: 100%;
}

/* ============================================
   TOUCH-FRIENDLY IMPROVEMENTS
   ============================================ */

/* Minimum touch target size (44x44px per WCAG) */
@media (max-width: 768px) {
  button,
  .btn-primary,
  .btn-secondary,
  a[role='button'],
  input[type='checkbox'],
  input[type='radio'] {
    min-height: 44px;
    min-width: 44px;
    padding: 0.75rem 1.25rem;
  }

  /* Larger form inputs on mobile */
  input[type='text'],
  input[type='email'],
  input[type='password'],
  input[type='number'],
  input[type='tel'],
  select,
  textarea {
    min-height: 44px;
    font-size: 16px; /* Prevents zoom on iOS */
  }
}

/* ============================================
   MODAL MOBILE IMPROVEMENTS
   ============================================ */

@media (max-width: 768px) {
  .modal {
    padding: 1rem;
    align-items: flex-end;
  }

  .modal-content {
    width: 100%;
    max-width: 100%;
    max-height: 90vh;
    margin: 0;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    animation: slideUpModal var(--transition-normal) var(--easing-out);
  }

  @keyframes slideUpModal {
    from {
      transform: translateY(100%);
    }
    to {
      transform: translateY(0);
    }
  }

  .modal-header {
    position: sticky;
    top: 0;
    background: white;
    z-index: 10;
    border-bottom: 1px solid var(--color-border-default);
  }

  .modal-body-scrollable {
    max-height: calc(90vh - 140px);
  }
}

/* ============================================
   RESPONSIVE NAVIGATION IMPROVEMENTS
   ============================================ */

@media (max-width: 768px) {
  .header-actions {
    border-top: 1px solid var(--color-border-subtle);
    padding-top: var(--spacing-sm);
    margin-top: var(--spacing-sm);
  }

  .view-dropdown {
    font-size: var(--font-size-sm);
    padding: 0.5rem;
  }

  .btn-group {
    flex-wrap: wrap;
    gap: var(--spacing-xs);
  }

  .btn-group button {
    font-size: var(--font-size-sm);
    padding: 0.5rem 0.75rem;
  }
}

/* ============================================
   RESPONSIVE METRICS & CARDS
   ============================================ */

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

@media (max-width: 640px) {
  .metrics-grid {
    grid-template-columns: 1fr;
  }

  .metric-card {
    padding: 1rem;
  }

  .metric-value {
    font-size: var(--font-size-xl);
  }
}

/* ============================================
   RESPONSIVE CHARTS
   ============================================ */

.chart-container {
  position: relative;
  width: 100%;
  overflow: hidden;
}

@media (max-width: 768px) {
  .chart-container {
    min-height: 250px;
  }

  .chart-legend {
    flex-wrap: wrap;
    gap: var(--spacing-xs);
  }

  .legend-item {
    font-size: var(--font-size-xs);
  }
}

/* ============================================
   RESPONSIVE TABLES
   ============================================ */

@media (max-width: 768px) {
  /* Stack table on mobile for better readability */
  .table-mobile-stack {
    display: block;
    width: 100%;
  }

  .table-mobile-stack thead {
    display: none;
  }

  .table-mobile-stack tbody,
  .table-mobile-stack tr,
  .table-mobile-stack td {
    display: block;
    width: 100%;
  }

  .table-mobile-stack tr {
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    background: white;
  }

  .table-mobile-stack td {
    text-align: left;
    padding: var(--spacing-xs) 0;
    border: none;
    position: relative;
    padding-left: 50%;
  }

  .table-mobile-stack td::before {
    content: attr(data-label);
    position: absolute;
    left: 0;
    width: 45%;
    padding-right: var(--spacing-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
  }
}

/* ============================================
   RESPONSIVE FORMS
   ============================================ */

@media (max-width: 768px) {
  .config-grid {
    grid-template-columns: 1fr;
  }

  .grid-two-columns,
  .grid-three-columns,
  .grid-four-columns {
    grid-template-columns: 1fr;
  }

  .form-group {
    margin-bottom: var(--spacing-md);
  }
}

/* ============================================
   ENHANCED SCROLLBAR STYLING
   ============================================ */

/* Custom scrollbar for webkit browsers */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-400);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-500);
}

/* Firefox scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--gray-400) var(--gray-100);
}

/* ============================================
   LOADING STATES ENHANCEMENTS
   ============================================ */

.loading-pulse {
  animation: pulse 1.5s ease-in-out infinite;
}

.loading-dots::after {
  content: '';
  animation: loadingDots 1.5s steps(4, end) infinite;
}

@keyframes loadingDots {
  0%,
  20% {
    content: '';
  }
  40% {
    content: '.';
  }
  60% {
    content: '..';
  }
  80%,
  100% {
    content: '...';
  }
}

/* Shimmer effect for skeleton loaders */
@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

.shimmer {
  background: linear-gradient(to right, var(--gray-200) 0%, var(--gray-100) 50%, var(--gray-200) 100%);
  background-size: 1000px 100%;
  animation: shimmer 2s infinite linear;
}

/* ============================================
   ACCESSIBILITY ENHANCEMENTS
   ============================================ */

/* Screen reader only content */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus visible for better keyboard navigation */
.focus-visible-ring:focus-visible {
  outline: 3px solid var(--primary-green);
  outline-offset: 2px;
}

/*
 * WCAG 2.4.7 Focus Visible — global baseline.
 * Wrapped in :where() so specificity is 0 and any existing component-level
 * :focus-visible rule (table-action-icon, global-search-*, vw-context-back,
 * etc.) wins. This only affects interactive elements that currently have no
 * focus style at all.
 */
:where(a, button, input, select, textarea, summary, [tabindex]:not([tabindex='-1'])):focus-visible {
  outline: 2px solid var(--primary-green, #15803d);
  outline-offset: 2px;
  border-radius: 2px;
}

/* High contrast mode adjustments */
@media (prefers-contrast: high) {
  button,
  .btn-primary,
  .btn-secondary {
    border: 2px solid currentColor;
  }

  .metric-card,
  .panel-card,
  .chart-card {
    border: 2px solid var(--gray-400);
  }
}

/*
 * WCAG 2.3.3 Animation from Interactions — respect users who set
 * prefers-reduced-motion. Pages still function; transitions/animations are
 * effectively instant. Mirrors the W3C-recommended pattern.
 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================
   Flux Branded Loading Indicators
   ============================================ */

@keyframes flux-logo-loading-spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(-360deg);
  }
}

.loading-spinner {
  display: block;
  width: 40px;
  height: 40px;
  margin: 0 auto 12px;
  background-image: url('/assets/flux-energy-logo-favicon.png');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  animation: flux-logo-loading-spin 1s linear infinite;
}

.flux-loading-inline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  text-align: center;
}

.flux-loading-inline .loading-spinner {
  width: 20px;
  height: 20px;
  margin: 0;
  flex: 0 0 20px;
}

.flux-loading-text {
  display: inline-block;
}

i.fa-spinner.fa-spin,
i.fas.fa-spinner.fa-spin,
i.fa-solid.fa-spinner.fa-spin,
i.fa-spinner.fa-spin-pulse,
i.fas.fa-spinner.fa-spin-pulse,
i.fa-solid.fa-spinner.fa-spin-pulse {
  display: inline-block;
  width: 1em;
  height: 1em;
  vertical-align: -0.125em;
  color: transparent !important;
  background-image: url('/assets/flux-energy-logo-favicon.png');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  animation: flux-logo-loading-spin 1s linear infinite !important;
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  /* Hide non-essential elements when printing */
  .no-print,
  button,
  .btn-primary,
  .btn-secondary,
  .notification-center,
  .header-actions,
  .modal,
  .loading-spinner {
    display: none !important;
  }

  /* Optimize for print */
  body {
    background: white;
    color: black;
  }

  .metric-card,
  .panel-card,
  .chart-card,
  .table-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ddd;
    page-break-inside: avoid;
  }

  /* Ensure charts are visible */
  .chart-container {
    max-height: 400px;
  }

  /* Print links with URLs */
  a[href^='http']::after {
    content: ' (' attr(href) ')';
    font-size: 0.8em;
    color: var(--gray-600);
  }
}

/* Font Awesome: spacing when paired with headings / menu labels */
.vw-fa-gutter {
  margin-right: 0.4em;
}

.user-menu-item .fa-fw {
  width: 1.25em;
}

.template-icon .fa-solid {
  font-size: 1.5rem;
  line-height: 1;
}

.step-icon .fa-solid {
  font-size: 1.125rem;
  line-height: 1;
}

.alert-icon .fa-solid {
  font-size: 1.125rem;
  line-height: 1;
}

.timeline-icon .fa-solid {
  font-size: 1rem;
  line-height: 1;
}

.vw-status-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
}

/* ── Vendor Contact Hub ─────────────────────────────── */
.vh-contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

.vh-contact-card {
  display: flex;
  gap: 14px;
  padding: 16px;
  background: var(--card-bg, #ffffff);
  border: 1px solid var(--border, #e2e8f0);
  border-radius: 10px;
  transition:
    border-color 0.15s,
    box-shadow 0.15s;
}

.vh-contact-card:hover {
  border-color: var(--primary, #6366f1);
  box-shadow: 0 0 0 1px var(--primary, #6366f1);
}

.vh-contact-avatar {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary, #6366f1);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
}

.vh-contact-info {
  flex: 1;
  min-width: 0;
}

.vh-contact-name {
  font-weight: 600;
  font-size: 15px;
  color: var(--text, var(--text-primary, #0f172a));
  margin-bottom: 2px;
}

.vh-contact-meta {
  font-size: 12px;
  color: var(--muted, var(--text-tertiary, #475569));
  margin-bottom: 6px;
}

.vh-contact-detail {
  font-size: 13px;
  color: var(--text-secondary, #1f2937);
  line-height: 1.6;
}

.vh-contact-detail i {
  width: 16px;
  text-align: center;
  color: var(--muted, var(--text-tertiary, #64748b));
  margin-right: 4px;
}

.vh-contact-detail a {
  color: var(--primary, #6366f1);
  text-decoration: none;
}

.vh-contact-detail a:hover {
  text-decoration: underline;
}

/* Activity log */
.vh-activity-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.vh-activity-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 16px;
  background: var(--card-bg, #ffffff);
  border: 1px solid var(--border, #e2e8f0);
  border-radius: 8px;
  margin-bottom: 6px;
}

.vh-activity-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

.vh-activity-body {
  flex: 1;
  min-width: 0;
}

.vh-activity-desc {
  font-size: 14px;
  font-weight: 500;
  color: var(--text, var(--text-primary, #0f172a));
  margin-bottom: 4px;
}

.vh-activity-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.vh-activity-date {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--muted, var(--text-tertiary, #64748b));
  white-space: nowrap;
}

/* ═══════════════════════════════════════════════════════════════════════════
   BESS Management Tab
   ═══════════════════════════════════════════════════════════════════════════ */

.bess-unit-card {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 20px;
  transition:
    box-shadow 0.2s,
    border-color 0.2s;
}
.bess-unit-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  border-color: #cbd5e1;
}

.bess-status-pill {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

/* Action buttons row */
.bess-btn {
  padding: 5px 10px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 600;
  transition:
    background 0.15s,
    box-shadow 0.15s;
}
.bess-btn:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}
.bess-btn-primary {
  background: #3498db;
  color: #fff;
}
.bess-btn-primary:hover {
  background: #2980b9;
}
.bess-btn-secondary {
  background: #e67e22;
  color: #fff;
}
.bess-btn-secondary:hover {
  background: #d35400;
}
.bess-btn-outline {
  background: #fff;
  color: #555;
  border: 1px solid #ddd;
}
.bess-btn-outline:hover {
  background: #f8f9fa;
  border-color: #bbb;
}

/* Filter bar */
.bess-filter-input {
  padding: 6px 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
  font-size: 12px;
  background: #fff;
  color: #333;
  min-width: 100px;
}
.bess-filter-input:focus:not(:focus-visible) {
  outline: none;
  border-color: #3498db;
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.15);
}

/* ── Grid/TSO Pattern Action Buttons ── */
.grid-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 4px 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
  background: #fff;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}
.grid-action-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}
.grid-action-bess {
  color: #3498db;
  border-color: #3498db40;
}
.grid-action-bess:hover {
  background: #eef6ff;
  border-color: #3498db;
}
.grid-action-maint {
  color: #e67e22;
  border-color: #e67e2240;
}
.grid-action-maint:hover {
  background: #fef9e7;
  border-color: #e67e22;
}
.grid-action-avoid {
  color: #e74c3c;
  border-color: #e74c3c40;
}
.grid-action-avoid:hover {
  background: #fdecea;
  border-color: #e74c3c;
}

/* ── BESS Intelligent Routing Toggle ── */
.bess-routing-toggle input:checked + span {
  background: #27ae60 !important;
}
.bess-routing-toggle span::before {
  content: '';
  position: absolute;
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 3px;
  background: #fff;
  border-radius: 50%;
  transition: 0.3s;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}
.bess-routing-toggle input:checked + span::before {
  transform: translateX(22px);
}

/* ============================================
   VW UNIFIED COMPONENT SYSTEM
   Shared classes used by vwBadge / vwCard /
   vwTable / vwTabs / vwAlert / vwModal helpers
   in core-utils.js.
   ============================================ */

/* ── Badges ─────────────────────────────────── */
.vw-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.6;
  white-space: nowrap;
  text-transform: capitalize;
}
.vw-badge--success {
  background: var(--success, #10b981);
  color: #fff;
}
.vw-badge--danger {
  background: var(--danger, #ef4444);
  color: #fff;
}
.vw-badge--warning {
  background: var(--warning, #f59e0b);
  color: #fff;
}
.vw-badge--info {
  background: var(--info, #3b82f6);
  color: #fff;
}
.vw-badge--secondary {
  background: var(--gray-400, #9ca3af);
  color: #fff;
}
.vw-badge--green {
  background: #16a34a;
  color: #fff;
}
.vw-badge--red {
  background: #dc2626;
  color: #fff;
}
.vw-badge--yellow {
  background: #ca8a04;
  color: #fff;
}
.vw-badge--blue {
  background: #2563eb;
  color: #fff;
}
.vw-badge--orange {
  background: #ea580c;
  color: #fff;
}
.vw-badge--purple {
  background: #9333ea;
  color: #fff;
}
.vw-badge--gray {
  background: #6b7280;
  color: #fff;
}

/* Soft / light variants */
.vw-badge--success-soft {
  background: var(--color-bg-success);
  color: #065f46;
}
.vw-badge--danger-soft {
  background: var(--color-bg-danger);
  color: #991b1b;
}
.vw-badge--warning-soft {
  background: var(--color-bg-warning);
  color: #92400e;
}
.vw-badge--info-soft {
  background: var(--color-bg-info);
  color: #1e40af;
}
.vw-badge--secondary-soft {
  background: var(--gray-100, #f3f4f6);
  color: var(--gray-600, #4b5563);
}

/* ── Metric Cards ───────────────────────────── */
.vw-kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.vw-card {
  background: var(--color-background-primary, #fff);
  border: 1px solid var(--color-border-default, #e5e7eb);
  border-radius: 12px;
  padding: 20px;
  transition:
    box-shadow var(--transition-normal, 0.2s) var(--easing-out, ease-out),
    border-color var(--transition-normal, 0.2s) var(--easing-out, ease-out);
}
.vw-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}
.vw-card--metric {
  display: flex;
  flex-direction: column;
}
.vw-card--metric .vw-card__icon {
  font-size: 20px;
  color: var(--color-text-tertiary, #6b7280);
  opacity: 0.5;
  margin-bottom: 8px;
  flex-shrink: 0;
}
.vw-card--metric .vw-card__body {
  display: flex;
  flex-direction: column;
}
.vw-card--metric .vw-card__label {
  font-size: 13px;
  color: var(--color-text-tertiary, #6b7280);
  margin-bottom: 4px;
  display: block;
}
.vw-card--metric .vw-card__value {
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 700;
  color: var(--color-text-primary, #111827);
  line-height: 1.2;
  display: block;
  white-space: nowrap;
}
.vw-card--metric .vw-card__sub {
  font-size: 12px;
  color: var(--color-text-tertiary, #6b7280);
  margin-top: 4px;
  display: block;
}

.vw-card--metric[onclick] {
  transition:
    border-color 0.15s,
    box-shadow 0.15s,
    transform 0.1s;
}
.vw-card--metric[onclick]:hover {
  border-color: var(--color-primary, #3b82f6);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.15);
  transform: translateY(-1px);
}
.vw-card--metric[onclick]:active {
  transform: translateY(0);
}

/* ── Tables ──────────────────────────────────── */
.vw-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border-default, #e5e7eb);
  border-radius: 10px;
  background: var(--color-background-primary, #fff);
}
.vw-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.vw-table th {
  background: var(--color-background-secondary, #f9fafb);
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
  color: var(--color-text-secondary, #374151);
  border-bottom: 2px solid var(--color-border-default, #e5e7eb);
  white-space: nowrap;
}
.vw-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-border-subtle, #f3f4f6);
  color: var(--color-text-primary, #111827);
}
.vw-table tbody tr:hover {
  background: var(--color-background-secondary, #f9fafb);
}
.vw-table tbody tr:last-child td {
  border-bottom: none;
}

/* ── Tabs ────────────────────────────────────── */
.vw-tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--color-border-default, #e5e7eb);
  margin-bottom: 20px;
  overflow-x: auto;
}
.vw-tab {
  padding: 10px 20px;
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-tertiary, #6b7280);
  white-space: nowrap;
  transition:
    color var(--transition-fast, 0.15s),
    border-color var(--transition-fast, 0.15s);
}
.vw-tab:hover {
  color: var(--color-text-primary, #111827);
}
.vw-tab.active,
.vw-tab--active {
  color: var(--primary-green, #00d4aa);
  border-bottom-color: var(--primary-green, #00d4aa);
  font-weight: 600;
}

/* ── Section headers ─────────────────────────── */
.vw-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 8px;
}
.vw-section-header h3,
.vw-section-header h4 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-primary, #111827);
}

/* ── Toolbar / action bar ─────────────────────── */
.vw-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.vw-toolbar .vw-search {
  flex: 1;
  min-width: 180px;
  padding: 8px 12px;
  border: 1px solid var(--color-border-default, #e5e7eb);
  border-radius: 8px;
  font-size: 13px;
  background: var(--color-background-primary, #fff);
  color: var(--color-text-primary, #111827);
  transition: border-color var(--transition-fast, 0.15s);
}
.vw-toolbar .vw-search:focus:not(:focus-visible) {
  outline: none;
  border-color: var(--primary-green, #00d4aa);
  box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.12);
}
.vw-toolbar .vw-select {
  padding: 8px 12px;
  border: 1px solid var(--color-border-default, #e5e7eb);
  border-radius: 8px;
  font-size: 13px;
  background: var(--color-background-primary, #fff);
  color: var(--color-text-primary, #111827);
  cursor: pointer;
}
.vw-toolbar .vw-btn {
  padding: 8px 16px;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition:
    background var(--transition-fast, 0.15s),
    box-shadow var(--transition-fast, 0.15s);
}
.vw-btn--primary {
  background: var(--primary-green, #00d4aa);
  color: #fff;
}
.vw-btn--primary:hover {
  background: #00bf9a;
  box-shadow: 0 2px 8px rgba(0, 212, 170, 0.25);
}
.vw-btn--secondary {
  background: var(--color-background-secondary, #f3f4f6);
  color: var(--color-text-primary, #111827);
  border: 1px solid var(--color-border-default, #e5e7eb);
}
.vw-btn--secondary:hover {
  background: var(--color-background-tertiary, #e5e7eb);
}
.vw-btn--danger {
  background: var(--danger, #ef4444);
  color: #fff;
}
.vw-btn--danger:hover {
  background: #dc2626;
}
.vw-btn--sm {
  padding: 5px 12px;
  font-size: 12px;
}
.vw-btn--xs {
  padding: 3px 8px;
  font-size: 11px;
}

/* ── Loading / empty states ──────────────────── */
.vw-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 40px 20px;
  color: var(--color-text-tertiary, #6b7280);
  font-size: 14px;
}
.vw-loading::before {
  content: '';
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-border-default, #e5e7eb);
  border-top-color: var(--primary-green, #00d4aa);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
.vw-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 40px 20px;
  text-align: center;
  color: var(--color-text-tertiary, #6b7280);
}
.vw-empty__icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  opacity: 0.5;
}
.vw-empty__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-secondary, #374151);
  margin-bottom: 4px;
}
.vw-empty__desc {
  font-size: 13px;
  max-width: 360px;
}

/* ── Alerts (inline) ─────────────────────────── */
.vw-alert {
  padding: 12px 16px;
  border-radius: 8px;
  border-left: 4px solid;
  margin-bottom: 16px;
  font-size: 13px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.vw-alert--success {
  background: var(--color-bg-success);
  border-color: var(--success, #10b981);
  color: #065f46;
}
.vw-alert--warning {
  background: var(--color-bg-warning);
  border-color: var(--warning, #f59e0b);
  color: #92400e;
}
.vw-alert--danger {
  background: var(--color-bg-danger);
  border-color: var(--danger, #ef4444);
  color: #991b1b;
}
.vw-alert--info {
  background: var(--color-bg-info);
  border-color: var(--info, #3b82f6);
  color: #1e40af;
}

/* ── Modal ───────────────────────────────────── */
.vw-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9000;
  animation: fadeIn 0.15s ease-out;
}
.vw-modal {
  background: var(--color-background-primary, #fff);
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
  width: 90%;
  max-width: 640px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  animation: fadeIn 0.15s ease-out;
}
.vw-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border-default, #e5e7eb);
}
.vw-modal__header h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}
.vw-modal__close {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--color-text-tertiary, #6b7280);
  padding: 4px 8px;
  border-radius: 6px;
  transition: background var(--transition-fast, 0.15s);
}
.vw-modal__close:hover {
  background: var(--color-background-tertiary, #f3f4f6);
}
.vw-modal__body {
  padding: 20px;
  overflow: auto;
  flex: 1;
  min-width: 0;
  min-height: 0;
}
.vw-modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 20px;
  border-top: 1px solid var(--color-border-default, #e5e7eb);
}

/* ── Toast ───────────────────────────────────── */
.vw-toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.vw-toast {
  padding: 12px 18px;
  border-radius: 10px;
  background: var(--color-background-primary, #fff);
  border: 1px solid var(--color-border-default, #e5e7eb);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  font-size: 13px;
  animation: slideInRight 0.25s ease-out;
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 280px;
  max-width: 420px;
}
.vw-toast--success {
  border-left: 4px solid var(--success, #10b981);
}
.vw-toast--danger {
  border-left: 4px solid var(--danger, #ef4444);
}
.vw-toast--warning {
  border-left: 4px solid var(--warning, #f59e0b);
}
.vw-toast--info {
  border-left: 4px solid var(--info, #3b82f6);
}

/* ── Metric card with decorative icon ─────────── */
.vw-card--metric-icon {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.vw-card--metric-icon .vw-card__icon {
  font-size: 24px;
  opacity: 0.3;
}
/* Status-tinted metric card variants */
.vw-card--success {
  background: #f0fdf4;
  border-color: #bbf7d0;
}
.vw-card--success .vw-card__label {
  color: #15803d;
}
.vw-card--success .vw-card__value {
  color: #16a34a;
}
.vw-card--warning {
  background: #fefce8;
  border-color: #fde68a;
}
.vw-card--warning .vw-card__label {
  color: #a16207;
}
.vw-card--warning .vw-card__value {
  color: #ca8a04;
}
.vw-card--danger {
  background: #fef2f2;
  border-color: #fecaca;
}
.vw-card--danger .vw-card__label {
  color: #b91c1c;
}
.vw-card--danger .vw-card__value {
  color: #dc2626;
}
.vw-card--muted {
  background: var(--color-background-secondary, #f9fafb);
}

/* ── Two-column dashboard grid ───────────────── */
.vw-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}
@media (max-width: 768px) {
  .vw-grid-2 {
    grid-template-columns: 1fr;
  }
}

/* ── Dashboard view container ────────────────── */
.vw-dashboard {
  padding: 24px;
  font-family:
    system-ui,
    -apple-system,
    sans-serif;
}
.vw-dashboard__title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text-primary, #111827);
  margin: 0 0 4px;
}
.vw-dashboard__subtitle {
  font-size: 14px;
  color: var(--color-text-tertiary, #6b7280);
  margin: 0 0 20px;
}