/**
 * ConFab Modern Admin CSS Foundation
 * FILE: assets/css/confab-admin-modern.css
 * 
 * Modern design system for ConFab conference schedule plugin admin interface.
 * Provides card-based layout, hero banner, toggle switches, and professional
 * styling aligned with WordPress admin design patterns.
 * 
 * @package confab
 * @subpackage Admin/Assets
 * @since 2.0.0
 */

/* =============================================================================
   Design System Foundation
   ============================================================================= */

:root {
  /* ConFab Brand Colors (WordPress-aligned) */
  --confab-primary: #2271b1;
  --confab-success: #00a32a;
  --confab-warning: #dba617;
  --confab-error: #d63638;
  --confab-info: #0066cc;

  /* ConFab Status Colors */
  --confab-active: var(--confab-success);
  --confab-inactive: #8c8f94;
  --confab-highlight: #c8e6ff;

  /* Spacing System */
  --confab-space-xs: 4px;
  --confab-space-sm: 8px;
  --confab-space-md: 16px;
  --confab-space-lg: 24px;
  --confab-space-xl: 32px;

  /* Typography */
  --confab-font-small: 13px;
  --confab-font-normal: 15px;
  --confab-font-medium: 17px;
  --confab-font-large: 18px;

  /* Border Radius */
  --confab-radius-sm: 3px;
  --confab-radius-md: 6px;
  --confab-radius-lg: 8px;

  /* Animation Timing */
  --confab-transition-fast: 0.2s ease;
  --confab-transition-standard: 0.3s ease;

  /* Admin Background Colors */
  --confab-bg-light: #f9f9f9;
  --confab-bg-white: #fff;
  --confab-border-light: #dcdcde;
}

/* =============================================================================
   Base Component Classes
   ============================================================================= */

/* ConFab Card Component */
.confab-card {
  background: var(--confab-bg-white);
  border: 1px solid var(--confab-border-light);
  border-radius: var(--confab-radius-md);
  padding: var(--confab-space-lg);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: box-shadow var(--confab-transition-fast);
  margin-bottom: var(--confab-space-lg);
}

.confab-card:hover {
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.confab-card h2 {
  margin-top: 0;
  border-bottom: 1px solid var(--confab-border-light);
  padding-bottom: var(--confab-space-sm);
  margin-bottom: var(--confab-space-md);
  color: #23282d;
  font-size: 1.3em;
  display: flex;
  align-items: center;
  gap: var(--confab-space-sm);
}

/* Button Enhancements */
.confab-button-primary {
  background: var(--confab-primary);
  border-color: var(--confab-primary);
  color: white;
  font-weight: 500;
  transition: all var(--confab-transition-fast);
  border-radius: var(--confab-radius-sm);
  padding: 8px 16px;
  font-size: var(--confab-font-medium);
}

.confab-button-primary:hover {
  background: #1e5a8a;
  border-color: #1e5a8a;
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(34, 113, 177, 0.3);
  color: white;
}

/* =============================================================================
   Modern Toggle Switch Component
   ============================================================================= */

.confab-toggle-wrapper {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 24px;
  cursor: pointer;
  user-select: none;
  flex-shrink: 0;
}

.confab-toggle-input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.confab-toggle-slider {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--confab-inactive);
  border-radius: 24px;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.5, 1);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2);
}

.confab-toggle-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  border-radius: 50%;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.5, 1);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.confab-toggle-input:checked+.confab-toggle-slider {
  background-color: var(--confab-primary);
  box-shadow: inset 0 1px 3px rgba(34, 113, 177, 0.2);
}

.confab-toggle-input:checked+.confab-toggle-slider:before {
  transform: translateX(26px);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.confab-toggle-input:focus+.confab-toggle-slider {
  box-shadow: 0 0 0 2px rgba(34, 113, 177, 0.3);
}

.confab-toggle-wrapper:hover .confab-toggle-slider:before {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* =============================================================================
   Hero Banner Component
   ============================================================================= */

.confab-hero {
  background: linear-gradient(135deg, var(--confab-primary) 0%, #1e5a8a 100%);
  color: white;
  padding: var(--confab-space-sm) var(--confab-space-sm);
  border-radius: var(--confab-radius-lg);
  margin-bottom: var(--confab-space-lg);
  position: relative;
  overflow: hidden;
  min-height: 80px;
}

.confab-hero-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  align-items: center;
}

.confab-hero-branding {
  display: flex;
  align-items: center;
  gap: var(--confab-space-lg);
  width: 100%;
}

.confab-hero-logo {
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.confab-hero-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--confab-space-xs);
}

.confab-hero-title {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-weight: 700;
  font-size: 2.2em;
  margin: 0;
  color: white;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  line-height: 1.2;
}

.confab-hero-subtitle {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-weight: 300;
  font-style: italic;
  font-size: 1.2em;
  margin: 0;
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.2);
  line-height: 1.4;
}

.confab-hero-version {
  font-size: var(--confab-font-small);
  color: rgba(255, 255, 255, 0.7);
  font-weight: 400;
  margin-top: var(--confab-space-xs);
}

/* =============================================================================
   Settings Layout Components
   ============================================================================= */

.confab-admin-wrapper {
  margin: 0 20px 0 0;
  max-width: 1000px;
}

.confab-settings-container {
  max-width: 100%;
}

.confab-settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--confab-space-lg);
  margin-bottom: var(--confab-space-lg);
}

.confab-setting-item {
  display: flex;
  align-items: flex-start;
  gap: var(--confab-space-md);
  padding: var(--confab-space-md) 0;
}

.confab-setting-content {
  flex: 1;
}

.confab-setting-label {
  font-weight: 600;
  font-size: var(--confab-font-medium);
  margin: 0 0 var(--confab-space-xs) 0;
  color: #23282d;
  cursor: pointer;
  display: block;
}

.confab-setting-description {
  color: #646970;
  font-size: var(--confab-font-normal);
  line-height: 1.5;
  margin: 0;
}

/* =============================================================================
   Action Card Component
   ============================================================================= */

.confab-settings-action-card {
  background: var(--confab-highlight);
  border: 1px solid var(--confab-primary);
  margin-bottom: var(--confab-space-lg);
  padding: var(--confab-space-sm);
}

.confab-settings-action-content {
  padding: 0;
}

/* =============================================================================
   Accordion Documentation Component
   ============================================================================= */

.confab-accordion {
  border: 1px solid var(--confab-border-light);
  border-radius: var(--confab-radius-md);
  overflow: hidden;
}

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

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

.confab-accordion-header {
  background: var(--confab-bg-light);
  border: none;
  padding: var(--confab-space-md);
  width: 100%;
  text-align: left;
  cursor: pointer;
  font-weight: 600;
  font-size: var(--confab-font-medium);
  color: #23282d;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color var(--confab-transition-fast);
}

.confab-accordion-header:hover {
  background: #f0f0f1;
}

.confab-accordion-header:focus {
  outline: 2px solid var(--confab-primary);
  outline-offset: -2px;
}

.confab-accordion-toggle {
  color: var(--confab-primary);
  font-size: 1.2em;
  transition: transform var(--confab-transition-fast);
}

.confab-accordion-header[aria-expanded="true"] .confab-accordion-toggle {
  transform: rotate(180deg);
}

.confab-accordion-content {
  padding: var(--confab-space-md);
  background: var(--confab-bg-white);
  display: none;
}

.confab-accordion-content.confab-accordion-open {
  display: block;
}

.confab-accordion-content h4 {
  margin-top: 0;
  margin-bottom: var(--confab-space-sm);
  color: var(--confab-primary);
  font-size: var(--confab-font-medium);
}

.confab-accordion-content p {
  margin: 0 0 var(--confab-space-sm) 0;
  line-height: 1.5;
  font-size: var(--confab-font-normal);
}

.confab-accordion-content ul {
  margin: var(--confab-space-sm) 0;
  padding-left: var(--confab-space-lg);
}

.confab-accordion-content li {
  margin-bottom: var(--confab-space-xs);
}

.confab-accordion-content code {
  background: var(--confab-bg-light);
  padding: 2px 4px;
  border-radius: var(--confab-radius-sm);
  font-family: 'Courier New', monospace;
  font-size: var(--confab-font-normal);
}

.confab-accordion-content pre {
  background: var(--confab-bg-light);
  padding: var(--confab-space-sm);
  border-radius: var(--confab-radius-sm);
  overflow-x: auto;
  font-size: var(--confab-font-normal);
  margin: var(--confab-space-sm) 0;
}

/* =============================================================================
   Donation Footer Component
   ============================================================================= */

.confab-donation-footer {
  background: linear-gradient(135deg, var(--confab-primary) 0%, #1e5a8a 100%);
  color: white;
  padding: var(--confab-space-lg);
  border-radius: var(--confab-radius-md);
  margin-top: var(--confab-space-xl);
  text-align: center;
}

.confab-donation-content h3 {
  margin-top: 0;
  margin-bottom: var(--confab-space-sm);
  font-size: 1.4em;
  color: white;
}

.confab-donation-content p {
  margin: 0 0 var(--confab-space-md) 0;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.9);
}

.confab-donation-button {
  background: rgba(255, 255, 255, 0.2);
  border: 2px solid white;
  color: white;
  padding: var(--confab-space-sm) var(--confab-space-lg);
  border-radius: var(--confab-radius-sm);
  text-decoration: none;
  font-weight: 600;
  display: inline-block;
  transition: all var(--confab-transition-fast);
}

.confab-donation-button:hover {
  background: white;
  color: var(--confab-primary);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2);
}

/* =============================================================================
   Icon Utilities
   ============================================================================= */

.confab-icon {
  color: var(--confab-primary);
  font-size: 1.2em;
}

.confab-icon--success {
  color: var(--confab-success);
}

.confab-icon--warning {
  color: var(--confab-warning);
}

/* =============================================================================
   Responsive Design
   ============================================================================= */

@media (max-width: 768px) {
  .confab-hero {
    padding: var(--confab-space-md) var(--confab-space-lg);
  }

  .confab-hero-branding {
    gap: var(--confab-space-sm);
  }

  .confab-hero-logo {
    width: 60px;
    height: 60px;
  }

  .confab-hero-title {
    font-size: 1.6em;
  }

  .confab-hero-subtitle {
    font-size: 1em;
  }

  .confab-settings-grid {
    grid-template-columns: 1fr;
    gap: var(--confab-space-md);
  }
}

@media (max-width: 600px) {
  .confab-hero {
    min-height: auto;
  }

  .confab-hero-branding {
    flex-direction: column;
    text-align: center;
    gap: var(--confab-space-md);
  }

  .confab-hero-text {
    align-items: center;
  }

  .confab-admin-wrapper {
    margin: 0 10px 0 0;
  }
}

/* =============================================================================
   WordPress Admin Integration
   ============================================================================= */

.confab-admin-wrapper .notice {
  margin: 5px 0 15px;
}

/* Override WordPress defaults for better card integration */
.confab-card .form-table th {
  padding-left: 0;
}

.confab-card .form-table td {
  padding-left: 0;
}

/* =============================================================================
   Accordion JavaScript Functionality (Inline for Phase 2)
   ============================================================================= */

/* Smooth animation for accordion content */
.confab-accordion-content {
  max-height: 0;
  overflow: hidden;
  font-size: var(--confab-font-normal);
  transition: max-height 0.3s ease;
}

.confab-accordion-content.confab-accordion-open {
  max-height: 1000px;
  padding: var(--confab-space-md);
}

/* =============================================================================
   Data Management Two-Stage Confirmation System
   ============================================================================= */

/* Normal state styling */
.confab-setting-item {
  margin-bottom: var(--confab-space-md);
}

/* Danger active state styling */
.confab-danger-active {
  padding: var(--confab-space-md);
  background: #fef7f7;
  border: 1px solid #f0b7b8;
  border-radius: var(--confab-radius-sm);
  margin-bottom: var(--confab-space-md);
}

/* Danger indicator styling */
.confab-danger-indicator {
  display: flex;
  align-items: center;
  gap: var(--confab-space-sm);
  margin-top: var(--confab-space-xs);
  padding: var(--confab-space-sm);
  background: rgba(214, 54, 56, 0.1);
  border-radius: var(--confab-radius-sm);
  cursor: pointer;
  transition: background-color var(--confab-transition-fast);
}

.confab-danger-indicator:hover {
  background: rgba(214, 54, 56, 0.15);
}

.confab-warning-icon {
  color: var(--confab-error);
  font-size: 24px;
  font-weight: bold;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(214, 54, 56, 0.1);
  border-radius: 50%;
  flex-shrink: 0;
}

/* Warning details - hidden by default in danger active state */
.confab-warning-details {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: all 0.3s ease;
  margin-top: 0;
}

.confab-warning-details.show-details {
  max-height: 500px;
  opacity: 1;
  margin-top: var(--confab-space-md);
}

/* Warning box styling */
.confab-warning-box {
  background: #fef7f7;
  border: 1px solid var(--confab-error);
  border-radius: var(--confab-radius-sm);
  padding: var(--confab-space-md);
}

.confab-warning-box h4 {
  margin-top: var(--confab-space-sm);
  margin-bottom: var(--confab-space-sm);
  color: var(--confab-error);
  font-size: var(--confab-font-medium);
  font-weight: 600;
}

.confab-warning-box ul {
  margin: var(--confab-space-sm) 0;
  padding-left: var(--confab-space-lg);
  color: #3c434a;
}

.confab-warning-box li {
  margin-bottom: var(--confab-space-xs);
  color: #3c434a;
}

.confab-warning-box li::marker {
  color: var(--confab-error);
}

/* Danger details section */
.confab-danger-details {
  background: #fff;
  border: 1px solid #f0b7b8;
  border-radius: var(--confab-radius-sm);
  padding: var(--confab-space-md);
  margin-top: var(--confab-space-sm);
}

.confab-danger-details p:last-child {
  margin-bottom: 0;
}

/* Final confirmation section layout */
.confab-final-confirmation {
  display: flex;
  align-items: flex-start;
  gap: var(--confab-space-sm);
  margin-top: var(--confab-space-md);
  padding-top: var(--confab-space-md);
  border-top: 1px solid #f0b7b8;
}

.confab-confirmation-text {
  flex: 1;
}

/* Danger text styling */
.confab-label-danger {
  color: var(--confab-error) !important;
  font-weight: 600;
}

.confab-text-danger {
  color: var(--confab-error);
  font-weight: 500;
}

/* Danger toggle switch styling */
.confab-toggle-danger .confab-toggle-slider {
  background-color: #f0b7b8;
  border: 1px solid #e8a2a3;
}

.confab-toggle-danger .confab-toggle-input:checked+.confab-toggle-slider--danger {
  background-color: var(--confab-error);
  box-shadow: inset 0 1px 3px rgba(214, 54, 56, 0.2);
  border-color: var(--confab-error);
}

.confab-toggle-danger .confab-toggle-input:focus+.confab-toggle-slider {
  box-shadow: 0 0 0 2px rgba(214, 54, 56, 0.3);
  outline: 2px solid transparent;
}

.confab-toggle-danger:hover .confab-toggle-slider {
  background-color: #e8a2a3;
  border-color: #dc9596;
}

.confab-toggle-danger .confab-toggle-input:checked+.confab-toggle-slider--danger:before {
  transform: translateX(26px);
  box-shadow: 0 2px 6px rgba(214, 54, 56, 0.3);
}

/* Card spacing utility */
.confab-card--spaced {
  margin-top: var(--confab-space-xl);
}

/* Responsive design */
@media (max-width: 768px) {
  .confab-warning-box {
    padding: var(--confab-space-sm);
  }

  .confab-danger-details {
    padding: var(--confab-space-sm);
  }

  .confab-final-confirmation {
    flex-direction: column;
    gap: var(--confab-space-sm);
  }

  .confab-warning-icon {
    width: 32px;
    height: 32px;
    font-size: 20px;
  }
}

/* Focus enhancement for accessibility */
.confab-toggle-danger .confab-toggle-input:focus+.confab-toggle-slider {
  outline: 2px solid var(--confab-error);
  outline-offset: 2px;
}

/* =============================================================================
   Review & Donation Card System
   ============================================================================= */

/* Review Request Card */
.confab-card-review {
  border-left: 4px solid var(--confab-success);
  background: #f6ffed;
}

.confab-icon-review {
  color: var(--confab-success);
}

.confab-review-actions {
  margin: 15px 0 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--confab-space-sm);
  align-items: center;
}

.confab-review-primary {
  margin-right: var(--confab-space-sm);
}

.confab-review-secondary {
  margin-right: var(--confab-space-sm);
}

/* Donation Request Card */
.confab-card-donation {
  border-left: 4px solid var(--confab-primary);
  background: #f0f6fc;
}

.confab-icon-donation {
  color: var(--confab-primary);
}

.confab-donation-actions {
  margin: 15px 0 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--confab-space-sm);
  align-items: center;
}

.confab-donation-button {
  margin-right: var(--confab-space-sm);
}

.confab-donation-secondary {
  margin-right: var(--confab-space-sm);
}

/* Inline Form Layout */
.confab-inline-form {
  display: inline-block;
  margin: 0;
}

/* Responsive Design for Review/Donation Cards */
@media (max-width: 768px) {

  .confab-review-actions,
  .confab-donation-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .confab-review-actions .button,
  .confab-donation-actions .button {
    margin: var(--confab-space-xs) 0;
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 480px) {

  .confab-review-actions .confab-inline-form,
  .confab-donation-actions .confab-inline-form {
    width: 100%;
  }
}

/* =============================================================================
   Time Migration Tool Styles
   ============================================================================= */

.confab-migration-container {
  max-width: 900px;
}

.confab-migration-step {
  background: #fff;
  padding: var(--confab-space-lg);
  margin-top: var(--confab-space-lg);
  border: 1px solid #ccd0d4;
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.04);
  border-radius: var(--confab-radius-md);
}

/* Timezone Debug Section */
.confab-timezone-debug {
  margin-bottom: var(--confab-space-lg);
}

.confab-timezone-summary {
  cursor: pointer;
  font-weight: 600;
  padding: var(--confab-space-md);
  background: #f0f6fc;
  border: 1px solid #c5d9ed;
  border-radius: var(--confab-radius-sm);
}

.confab-timezone-summary:hover {
  background: #e8f2fc;
}

.confab-timezone-content {
  background: #f0f6fc;
  border: 1px solid #c5d9ed;
  border-top: none;
  padding: var(--confab-space-md);
  border-radius: 0 0 var(--confab-radius-sm) var(--confab-radius-sm);
}

.confab-timezone-table {
  background: transparent;
  border: none;
}

.confab-timezone-table th {
  width: 200px;
}

/* Offset Summary */
.confab-offset-summary {
  background: #f9f9f9;
  padding: var(--confab-space-md);
  border: 1px solid #ccd0d4;
  border-radius: var(--confab-radius-md);
}

.confab-offset-summary table {
  margin-top: var(--confab-space-md);
}

.confab-offset-summary th {
  width: 200px;
}

/* Migration Logs */
.confab-migration-logs {
  margin-top: var(--confab-space-xl);
  padding: var(--confab-space-lg);
  background: #f0f0f0;
  border-radius: var(--confab-radius-lg);
}

.confab-migration-logs-form {
  margin-top: var(--confab-space-md);
}