/**
 * GDPR Consent Banner Styles
 * jpugh.org - Accessible and responsive consent management
 * 
 * Features:
 * - WCAG 2.1 AA compliant
 * - High contrast support
 * - Keyboard navigation
 * - Screen reader friendly
 * - Mobile responsive
 * - Theme integration
 */

/* CSS Custom Properties for theming */
:root {
  --consent-overlay-bg: rgba(0, 0, 0, 0.8);
  --consent-bg: #ffffff;
  --consent-text: #333333;
  --consent-border: #e0e0e0;
  --consent-primary: #007bff;
  --consent-primary-hover: #0056b3;
  --consent-secondary: #6c757d;
  --consent-secondary-hover: #545b62;
  --consent-success: #28a745;
  --consent-error: #dc3545;
  --consent-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  --consent-border-radius: 8px;
  --consent-transition: all 0.3s ease;
}

/* Dark theme support */
[data-theme="dark"] {
  --consent-bg: #2d3748;
  --consent-text: #e2e8f0;
  --consent-border: #4a5568;
  --consent-primary: #4299e1;
  --consent-primary-hover: #3182ce;
  --consent-secondary: #718096;
  --consent-secondary-hover: #a0aec0;
  --consent-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --consent-bg: #ffffff;
    --consent-text: #000000;
    --consent-border: #000000;
    --consent-primary: #0000ff;
    --consent-primary-hover: #000080;
    --consent-secondary: #333333;
    --consent-secondary-hover: #666666;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  :root {
    --consent-transition: none;
  }
}

/* Main consent banner container */
.consent-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  animation: consentFadeIn 0.3s ease-out;
}

@keyframes consentFadeIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Overlay backdrop */
.consent-banner__overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--consent-overlay-bg);
  backdrop-filter: blur(2px);
}

/* Main content container */
.consent-banner__content {
  position: relative;
  background: var(--consent-bg);
  color: var(--consent-text);
  border: 1px solid var(--consent-border);
  border-radius: var(--consent-border-radius);
  box-shadow: var(--consent-shadow);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  transition: var(--consent-transition);
}

/* Header section */
.consent-banner__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 1.5rem 0;
  border-bottom: 1px solid var(--consent-border);
  margin-bottom: 1.5rem;
}

.consent-banner__title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--consent-text);
  line-height: 1.4;
}

.consent-banner__close {
  background: none;
  border: none;
  color: var(--consent-secondary);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 4px;
  transition: var(--consent-transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.consent-banner__close:hover,
.consent-banner__close:focus {
  background: var(--consent-border);
  color: var(--consent-text);
  outline: 2px solid var(--consent-primary);
  outline-offset: 2px;
}

/* Body section */
.consent-banner__body {
  padding: 0 1.5rem 1.5rem;
}

.consent-banner__description {
  margin: 0 0 1.5rem;
  line-height: 1.6;
  color: var(--consent-text);
}

/* Action buttons */
.consent-banner__actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.consent-btn {
  padding: 0.75rem 1.5rem;
  border-radius: var(--consent-border-radius);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: var(--consent-transition);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px; /* Minimum touch target size */
  border: 1px solid transparent;
}

/* Primary button */
.consent-btn--primary {
  background: var(--consent-primary);
  color: white;
  border-color: var(--consent-primary);
}

.consent-btn--primary:hover,
.consent-btn--primary:focus {
  background: var(--consent-primary-hover);
  border-color: var(--consent-primary-hover);
  outline: 2px solid var(--consent-primary);
  outline-offset: 2px;
}

/* Secondary button */
.consent-btn--secondary {
  background: var(--consent-secondary);
  color: white;
  border-color: var(--consent-secondary);
}

.consent-btn--secondary:hover,
.consent-btn--secondary:focus {
  background: var(--consent-secondary-hover);
  border-color: var(--consent-secondary-hover);
  outline: 2px solid var(--consent-secondary);
  outline-offset: 2px;
}

/* Link button */
.consent-btn--link {
  background: transparent;
  color: var(--consent-primary);
  border-color: transparent;
  text-decoration: underline;
  padding: 0.75rem 1rem;
}

.consent-btn--link:hover,
.consent-btn--link:focus {
  background: var(--consent-border);
  color: var(--consent-primary-hover);
  text-decoration: none;
  outline: 2px solid var(--consent-primary);
  outline-offset: 2px;
}

/* Details section */
.consent-details {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--consent-border);
  animation: consentSlideDown 0.3s ease-out;
}

@keyframes consentSlideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Consent categories */
.consent-categories {
  margin-bottom: 1.5rem;
}

.consent-category {
  margin-bottom: 1rem;
  padding: 1rem;
  border: 1px solid var(--consent-border);
  border-radius: var(--consent-border-radius);
  transition: var(--consent-transition);
}

.consent-category:hover {
  border-color: var(--consent-primary);
}

.consent-category__header {
  margin-bottom: 0.5rem;
}

.consent-category__label {
  display: flex;
  align-items: flex-start;
  cursor: pointer;
  font-weight: 500;
  line-height: 1.4;
}

.consent-category__checkbox {
  width: 18px;
  height: 18px;
  margin-right: 0.75rem;
  margin-top: 0.1rem;
  flex-shrink: 0;
  cursor: pointer;
  accent-color: var(--consent-primary);
}

.consent-category__checkbox:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.consent-category__checkbox:focus {
  outline: 2px solid var(--consent-primary);
  outline-offset: 2px;
}

.consent-category__name {
  flex: 1;
}

.consent-category__required {
  font-size: 0.75rem;
  color: var(--consent-secondary);
  font-weight: 400;
  margin-left: 0.5rem;
}

.consent-category__description {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--consent-secondary);
  margin-left: 2.5rem;
}

/* Details actions */
.consent-details__actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}

/* Messages */
.consent-message {
  padding: 0.75rem 1rem;
  border-radius: var(--consent-border-radius);
  margin-bottom: 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  animation: consentSlideDown 0.3s ease-out;
}

.consent-message--success {
  background: var(--consent-success);
  color: white;
  border: 1px solid var(--consent-success);
}

.consent-message--error {
  background: var(--consent-error);
  color: white;
  border: 1px solid var(--consent-error);
}

/* Mobile responsive design */
@media (max-width: 768px) {
  .consent-banner {
    padding: 0.5rem;
  }
  
  .consent-banner__content {
    max-height: 95vh;
  }
  
  .consent-banner__header {
    padding: 1rem 1rem 0;
    margin-bottom: 1rem;
  }
  
  .consent-banner__title {
    font-size: 1.125rem;
  }
  
  .consent-banner__body {
    padding: 0 1rem 1rem;
  }
  
  .consent-banner__actions {
    flex-direction: column;
  }
  
  .consent-btn {
    width: 100%;
    justify-content: center;
  }
  
  .consent-details__actions {
    flex-direction: column;
  }
  
  .consent-category__description {
    margin-left: 0;
    margin-top: 0.5rem;
  }
}

@media (max-width: 480px) {
  .consent-banner__header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  
  .consent-banner__close {
    align-self: flex-end;
    position: absolute;
    top: 1rem;
    right: 1rem;
  }
  
  .consent-banner__title {
    font-size: 1rem;
    margin-right: 3rem;
  }
}

/* Print styles */
@media print {
  .consent-banner {
    display: none !important;
  }
}

/* Focus management for accessibility */
.consent-banner *:focus {
  outline: 2px solid var(--consent-primary);
  outline-offset: 2px;
}

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

/* Manage withdrawal button for settings page */
.consent-manage {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
  background: var(--consent-primary);
  color: white;
  border: none;
  padding: 0.75rem 1rem;
  border-radius: var(--consent-border-radius);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--consent-transition);
  box-shadow: var(--consent-shadow);
}

.consent-manage:hover,
.consent-manage:focus {
  background: var(--consent-primary-hover);
  transform: translateY(-2px);
  outline: 2px solid var(--consent-primary);
  outline-offset: 2px;
}

@media (max-width: 768px) {
  .consent-manage {
    bottom: 10px;
    right: 10px;
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
  }
}