/* AI Photo Editor - Modern Minimalist Design */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* Modern Color System - Two Colors Only */
:root {
  /* Primary Colors */
  --aipe-primary: #2563eb;
  --aipe-primary-dark: #1d4ed8;
  --aipe-primary-light: #dbeafe;
  
  /* Neutral Colors */
  --aipe-neutral-50: #f8fafc;
  --aipe-neutral-100: #f1f5f9;
  --aipe-neutral-200: #e2e8f0;
  --aipe-neutral-300: #cbd5e1;
  --aipe-neutral-400: #94a3b8;
  --aipe-neutral-500: #64748b;
  --aipe-neutral-600: #475569;
  --aipe-neutral-700: #334155;
  --aipe-neutral-800: #1e293b;
  --aipe-neutral-900: #0f172a;
  
  /* Text Colors */
  --aipe-text-primary: var(--aipe-neutral-900);
  --aipe-text-secondary: var(--aipe-neutral-600);
  --aipe-text-muted: var(--aipe-neutral-500);
  
  /* Background Colors */
  --aipe-bg-primary: #ffffff;
  --aipe-bg-secondary: var(--aipe-neutral-50);
  --aipe-bg-tertiary: var(--aipe-neutral-100);
  
  /* Border Colors */
  --aipe-border: var(--aipe-neutral-200);
  --aipe-border-hover: var(--aipe-neutral-300);
  --aipe-border-focus: var(--aipe-primary);
  
  /* Status Colors */
  --aipe-success: #059669;
  --aipe-error: #dc2626;
  --aipe-warning: #d97706;
  
  /* Shadows */
  --aipe-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --aipe-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --aipe-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --aipe-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --aipe-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Spacing */
  --aipe-space-xs: 0.25rem;
  --aipe-space-sm: 0.5rem;
  --aipe-space-md: 1rem;
  --aipe-space-lg: 1.5rem;
  --aipe-space-xl: 2rem;
  --aipe-space-2xl: 3rem;
  
  /* Border Radius */
  --aipe-radius-sm: 0.375rem;
  --aipe-radius: 0.5rem;
  --aipe-radius-md: 0.75rem;
  --aipe-radius-lg: 1rem;
  --aipe-radius-xl: 1.25rem;
  --aipe-radius-full: 9999px;
}

/* Base Styles */
.aipe * { 
  box-sizing: border-box; 
}

/* Tool Container Styles */
.aipe-tool-container {
  max-width: 600px;
  margin: var(--aipe-space-xl) auto;
  padding: var(--aipe-space-2xl);
  background: var(--aipe-bg-primary);
  border: 1px solid var(--aipe-border);
  border-radius: var(--aipe-radius-xl); 
  color: var(--aipe-text-primary);
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  box-shadow: var(--aipe-shadow-lg);
  position: relative;
}

/* Tool Header */
.aipe-tool-header {
  text-align: center;
  margin-bottom: var(--aipe-space-xl);
  padding-bottom: var(--aipe-space-lg);
  border-bottom: 1px solid var(--aipe-border);
}

.aipe-tool-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--aipe-text-primary);
  margin: 0 0 var(--aipe-space-sm) 0;
  letter-spacing: -0.025em;
}

.aipe-tool-description {
  font-size: 0.875rem;
  color: var(--aipe-text-secondary);
  margin: 0;
  font-weight: 500;
}

/* Credits Display */
.aipe-credits-display {
  background: var(--aipe-primary-light);
  border: 1px solid var(--aipe-primary);
  padding: var(--aipe-space-lg);
  border-radius: var(--aipe-radius-lg);
  margin-bottom: var(--aipe-space-xl);
  text-align: center;
}

.aipe-credits-text {
  font-weight: 600;
  color: var(--aipe-primary-dark);
  font-size: 1.125rem;
  display: block;
  margin-bottom: var(--aipe-space-xs);
}

.aipe-tool-cost {
  color: var(--aipe-text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
}

/* Insufficient Credits */
.aipe-insufficient-credits {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: var(--aipe-error);
  padding: var(--aipe-space-lg); 
  border-radius: var(--aipe-radius-lg);
  text-align: center;
  font-weight: 500;
}

/* Form Styles */
.aipe-tool-form {
  display: grid;
  gap: var(--aipe-space-xl);
}

.aipe-form-group {
  display: grid;
  gap: var(--aipe-space-sm);
}

.aipe-form-group label {
  font-weight: 600;
  color: var(--aipe-text-primary);
  font-size: 0.875rem;
  letter-spacing: 0.025em;
}

.aipe-form-group input,
.aipe-form-group textarea {
  width: 100%;
  background: var(--aipe-bg-primary);
  color: var(--aipe-text-primary);
  border: 1px solid var(--aipe-border);
  border-radius: var(--aipe-radius-lg);
  padding: var(--aipe-space-md) var(--aipe-space-lg);
  outline: none;
  transition: all 0.2s ease;
  font-size: 0.875rem;
  line-height: 1.5;
  font-family: inherit;
}

.aipe-form-group input:hover,
.aipe-form-group textarea:hover {
  border-color: var(--aipe-border-hover);
}

.aipe-form-group input:focus,
.aipe-form-group textarea:focus {
  border-color: var(--aipe-border-focus);
  box-shadow: 0 0 0 3px var(--aipe-primary-light);
}

.aipe-form-group textarea {
  min-height: 120px;
  resize: vertical;
  line-height: 1.6;
}

/* Modern File Upload Area */
.aipe-file-upload-area {
  position: relative;
  border: 2px dashed var(--aipe-border);
  border-radius: var(--aipe-radius-xl);
  padding: var(--aipe-space-2xl);
  text-align: center;
  background: var(--aipe-bg-secondary);
  transition: all 0.3s ease;
  cursor: pointer;
  overflow: hidden;
}

.aipe-file-upload-area:hover {
  border-color: var(--aipe-primary);
  background: var(--aipe-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--aipe-shadow-lg);
}

.aipe-file-upload-area.dragover {
  border-color: var(--aipe-primary);
  background: var(--aipe-primary-light);
  transform: scale(1.02);
}

.aipe-file-upload-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--aipe-space-lg);
  background: var(--aipe-primary);
  border-radius: var(--aipe-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 24px;
  transition: all 0.3s ease;
}

.aipe-file-upload-area:hover .aipe-file-upload-icon {
  transform: scale(1.1);
  box-shadow: var(--aipe-shadow-md);
}

.aipe-file-upload-text {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--aipe-text-primary);
  margin-bottom: var(--aipe-space-sm);
}

.aipe-file-upload-subtext {
  font-size: 0.875rem;
  color: var(--aipe-text-secondary);
  margin-bottom: var(--aipe-space-lg);
}

.aipe-file-upload-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--aipe-space-sm);
  background: var(--aipe-primary);
  color: #ffffff;
  border: none;
  padding: var(--aipe-space-sm) var(--aipe-space-lg);
  border-radius: var(--aipe-radius-lg);
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.aipe-file-upload-btn:hover {
  background: var(--aipe-primary-dark);
  transform: translateY(-1px);
}

.aipe-file-upload-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

/* File Preview */
.aipe-file-preview {
  margin-top: var(--aipe-space-lg);
  padding: var(--aipe-space-lg);
  background: var(--aipe-bg-primary);
  border: 1px solid var(--aipe-border);
  border-radius: var(--aipe-radius-lg);
  display: none;
}

.aipe-file-preview.show {
  display: block;
  animation: aipe-fade-in 0.3s ease-out;
}

.aipe-file-preview-content {
  display: flex;
  align-items: center;
  gap: var(--aipe-space-md);
}

.aipe-file-preview-image {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--aipe-radius);
  border: 1px solid var(--aipe-border);
}

.aipe-file-preview-info {
  flex: 1;
}

.aipe-file-preview-name {
  font-weight: 600;
  color: var(--aipe-text-primary);
  margin-bottom: var(--aipe-space-xs);
}

.aipe-file-preview-size {
  font-size: 0.875rem;
  color: var(--aipe-text-secondary);
}

.aipe-file-preview-remove {
  background: var(--aipe-error);
  color: #ffffff;
  border: none;
  width: 32px;
  height: 32px;
  border-radius: var(--aipe-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.aipe-file-preview-remove:hover {
  background: #b91c1c;
  transform: scale(1.1);
}

/* Generation Area */
.aipe-generation-area {
  margin-top: var(--aipe-space-xl);
  padding: var(--aipe-space-2xl);
  background: var(--aipe-bg-secondary);
  border: 1px solid var(--aipe-border);
  border-radius: var(--aipe-radius-xl);
  text-align: center;
  display: none;
}

.aipe-generation-area.show {
  display: block;
  animation: aipe-fade-in 0.3s ease-out;
}

.aipe-generation-header {
  margin-bottom: var(--aipe-space-xl);
}

.aipe-generation-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--aipe-text-primary);
  margin-bottom: var(--aipe-space-sm);
}

.aipe-generation-subtitle {
  font-size: 0.875rem;
  color: var(--aipe-text-secondary);
  margin: 0;
}

.aipe-generation-progress {
  margin-bottom: var(--aipe-space-xl);
}

.aipe-progress-bar {
  width: 100%;
  height: 8px;
  background: var(--aipe-neutral-200);
  border-radius: var(--aipe-radius-full);
  overflow: hidden;
  margin-bottom: var(--aipe-space-md);
}

.aipe-progress-fill {
  height: 100%;
  background: var(--aipe-primary);
  border-radius: var(--aipe-radius-full);
  transition: width 0.3s ease;
  position: relative;
}

.aipe-progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: aipe-progress-shimmer 2s infinite;
}

@keyframes aipe-progress-shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.aipe-progress-text {
  font-size: 0.875rem;
  color: var(--aipe-text-secondary);
  font-weight: 500;
}

.aipe-generation-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--aipe-space-sm);
  font-size: 0.875rem;
  color: var(--aipe-text-secondary);
  margin-bottom: var(--aipe-space-lg);
}

.aipe-status-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: #ffffff;
}

.aipe-status-icon.processing {
  background: var(--aipe-primary);
  animation: aipe-pulse 2s infinite;
}

.aipe-status-icon.success {
  background: var(--aipe-success);
}

.aipe-status-icon.error {
  background: var(--aipe-error);
}

@keyframes aipe-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.aipe-generation-time {
  font-size: 0.75rem;
  color: var(--aipe-text-muted);
  margin-top: var(--aipe-space-sm);
}

/* Submit Button */
.aipe-submit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--aipe-space-sm);
  background: var(--aipe-primary);
  border: none;
  color: #ffffff;
  padding: var(--aipe-space-md) var(--aipe-space-xl); 
  border-radius: var(--aipe-radius-lg);
  font-weight: 600; 
  font-size: 1rem;
  cursor: pointer; 
  transition: all 0.2s ease;
  min-height: 48px;
  white-space: nowrap;
}

.aipe-submit-btn:hover {
  background: var(--aipe-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--aipe-shadow-md);
}

.aipe-submit-btn:active {
  transform: translateY(0);
  box-shadow: var(--aipe-shadow);
}

.aipe-submit-btn:disabled {
  background: var(--aipe-neutral-400);
  color: #ffffff;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* Result Container */
.aipe-result-container {
  margin-top: var(--aipe-space-xl);
  padding: var(--aipe-space-xl);
  background: var(--aipe-bg-secondary);
  border: 1px solid var(--aipe-border);
  border-radius: var(--aipe-radius-lg);
  animation: aipe-fade-in 0.3s ease-out;
}

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

.aipe-result-container h3 {
  color: var(--aipe-text-primary);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--aipe-space-lg);
  text-align: center;
}

.aipe-result-content img,
.aipe-result-content video {
  max-width: 100%;
  height: auto;
  border-radius: var(--aipe-radius-lg);
  box-shadow: var(--aipe-shadow-md);
  display: block;
  margin: 0 auto var(--aipe-space-lg);
}

/* Login Required */
.aipe-login-required {
  background: var(--aipe-bg-primary);
  border: 1px solid var(--aipe-border);
  border-radius: var(--aipe-radius-xl);
  padding: var(--aipe-space-2xl);
  text-align: center;
  color: var(--aipe-text-primary);
  max-width: 400px;
  margin: var(--aipe-space-xl) auto;
  box-shadow: var(--aipe-shadow-lg);
}

.aipe-login-required p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--aipe-text-secondary);
}

.aipe-login-required a {
  color: var(--aipe-primary);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s ease;
}

.aipe-login-required a:hover {
  color: var(--aipe-primary-dark);
  text-decoration: underline;
}

/* History Styles */
.aipe-history {
  background: var(--aipe-bg-primary);
  border: 1px solid var(--aipe-border);
  border-radius: var(--aipe-radius-xl);
  padding: var(--aipe-space-xl);
  color: var(--aipe-text-primary);
  text-align: center;
  font-size: 1rem;
  font-weight: 500;
  box-shadow: var(--aipe-shadow-lg);
}

/* Credits Shortcode */
.aipe-credits {
  display: inline-block;
  padding: var(--aipe-space-sm) var(--aipe-space-md);
  background: var(--aipe-primary-light);
  border: 1px solid var(--aipe-primary);
  border-radius: var(--aipe-radius);
  color: var(--aipe-primary-dark);
  font-size: 0.875rem;
  font-weight: 500;
}

.aipe-credits-guest {
  background: var(--aipe-bg-tertiary);
  border: 1px solid var(--aipe-border);
  color: var(--aipe-text-muted);
}

/* Before/After Comparison Styles */
.aipe-before-after {
  margin-top: var(--aipe-space-lg);
}

.aipe-comparison-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--aipe-space-xl);
  margin-bottom: var(--aipe-space-xl);
}

.aipe-image-container {
  text-align: center;
}

.aipe-image-container h4 {
  color: var(--aipe-text-primary);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--aipe-space-lg);
  padding: var(--aipe-space-md);
  background: var(--aipe-bg-secondary);
  border: 1px solid var(--aipe-border);
  border-radius: var(--aipe-radius);
}

.aipe-comparison-img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--aipe-radius-lg);
  box-shadow: var(--aipe-shadow-md);
  transition: transform 0.2s ease;
}

.aipe-comparison-img:hover {
  transform: scale(1.02);
}

.aipe-download-actions {
  display: flex;
  gap: var(--aipe-space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.aipe-download-btn {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: var(--aipe-space-sm) !important;
  padding: var(--aipe-space-sm) var(--aipe-space-lg) !important;
  border-radius: var(--aipe-radius-lg) !important;
  background: var(--aipe-success) !important;
  color: #ffffff !important;
  text-decoration: none !important;
  font-weight: 600 !important;
  font-size: 0.875rem !important;
  line-height: 1 !important;
  white-space: nowrap !important;
  transition: all 0.2s ease !important;
  box-shadow: var(--aipe-shadow) !important;
  border: none !important;
  cursor: pointer !important;
  min-height: 40px !important;
}

.aipe-download-btn:hover { 
  background: #047857 !important;
  transform: translateY(-1px) !important;
  box-shadow: var(--aipe-shadow-md) !important;
}

.aipe-download-btn:active {
  transform: translateY(0) !important;
  box-shadow: var(--aipe-shadow) !important;
}

/* Loading States */
.aipe-loading {
  position: relative;
  pointer-events: none;
}

.aipe-loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--aipe-border);
  border-top: 2px solid var(--aipe-primary);
  border-radius: 50%;
  animation: aipe-spin 1s linear infinite;
}

@keyframes aipe-spin {
  to { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
  .aipe-tool-container {
    margin: var(--aipe-space-md);
    padding: var(--aipe-space-xl);
    border-radius: var(--aipe-radius-lg);
  }
  
  .aipe-form-group input,
  .aipe-form-group textarea {
    padding: var(--aipe-space-sm) var(--aipe-space-md);
    font-size: 0.875rem;
  }
  
  .aipe-form-group textarea {
    min-height: 100px;
  }
  
  .aipe-submit-btn {
    padding: var(--aipe-space-sm) var(--aipe-space-md);
    font-size: 0.875rem;
    min-height: 44px;
  }
  
  .aipe-credits-display {
    padding: var(--aipe-space-md);
  }
  
  .aipe-credits-text {
    font-size: 1rem;
  }
  
  .aipe-tool-cost {
    font-size: 0.8rem;
  }
  
  .aipe-comparison-container {
    grid-template-columns: 1fr;
    gap: var(--aipe-space-lg);
  }
  
  .aipe-download-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .aipe-download-btn {
    width: 100%;
    max-width: 200px;
  }
  
  /* File Upload Responsive */
  .aipe-file-upload-area {
    padding: var(--aipe-space-xl);
  }
  
  .aipe-file-upload-icon {
    width: 48px;
    height: 48px;
    font-size: 20px;
  }
  
  .aipe-file-upload-text {
    font-size: 1rem;
  }
  
  .aipe-file-upload-subtext {
    font-size: 0.8rem;
  }
  
  .aipe-file-preview-content {
    flex-direction: column;
    text-align: center;
    gap: var(--aipe-space-sm);
  }
  
  .aipe-file-preview-image {
    width: 120px;
    height: 120px;
    margin: 0 auto;
  }
  
  /* Generation Area Responsive */
  .aipe-generation-area {
    padding: var(--aipe-space-xl);
  }
  
  .aipe-generation-title {
    font-size: 1.125rem;
  }
  
  .aipe-generation-subtitle {
    font-size: 0.8rem;
  }
  
  .aipe-progress-bar {
    height: 6px;
  }
  
  .aipe-generation-status {
    flex-direction: column;
    gap: var(--aipe-space-xs);
  }
}

@media (max-width: 480px) {
  .aipe-tool-container {
    margin: var(--aipe-space-sm);
    padding: var(--aipe-space-lg);
  }
  
  .aipe-form-group input,
  .aipe-form-group textarea {
    padding: var(--aipe-space-xs) var(--aipe-space-sm);
    font-size: 0.8rem;
  }
  
  .aipe-submit-btn {
    padding: var(--aipe-space-xs) var(--aipe-space-sm);
    font-size: 0.8rem;
    min-height: 40px;
  }
  
  .aipe-credits-display {
    padding: var(--aipe-space-sm);
  }
  
  .aipe-credits-text {
    font-size: 0.875rem;
  }
}

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

/* High contrast mode support */
@media (prefers-contrast: high) {
  .aipe-tool-container {
    border-width: 2px;
  }
  
  .aipe-form-group input,
  .aipe-form-group textarea {
    border-width: 2px;
  }
  
  .aipe-submit-btn {
    border: 2px solid var(--aipe-primary);
  }
}

/* Focus styles for keyboard navigation */
.aipe-form-group input:focus,
.aipe-form-group textarea:focus,
.aipe-submit-btn:focus {
  outline: 2px solid var(--aipe-primary);
  outline-offset: 2px;
}

/* Selection colors */
::selection {
  background: var(--aipe-primary-light);
  color: var(--aipe-text-primary);
}

::-moz-selection {
  background: var(--aipe-primary-light);
  color: var(--aipe-text-primary);
}