/* Utilities Design System - That One.App */
/* Extends Calculator Design System for utility applications */

/* Import the base calculator design system */
@import url('./calculator-design-system.css');

/* ===== UTILITY-SPECIFIC VARIABLES ===== */
:root {
  /* Utility Colors */
  --utility-generate: #10B981;     /* Green for generate actions */
  --utility-convert: #3B82F6;      /* Blue for convert actions */
  --utility-copy: #8B5CF6;         /* Purple for copy actions */
  --utility-clear: #6B7280;        /* Gray for clear/reset */
  
  /* Generator Specific Colors */
  --strength-weak: #EF4444;        /* Red for weak passwords */
  --strength-medium: #F59E0B;      /* Orange for medium passwords */
  --strength-strong: #10B981;      /* Green for strong passwords */
  
  /* Visual Output Colors */
  --qr-foreground: #1F2937;        /* QR code foreground */
  --qr-background: #FFFFFF;        /* QR code background */
  --color-preview-border: #E5E7EB; /* Color preview border */
  
  /* Utility Spacing */
  --utility-section-gap: var(--space-lg);
  --preset-grid-gap: var(--space-sm);
  --copy-button-size: 32px;
}

/* ===== BASE UTILITY CONTAINER ===== */
.utility {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--space-md);
  background: var(--cloud);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  line-height: 1.6;
}

.utility__title {
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 var(--space-lg) 0;
  text-align: center;
}

.utility__subtitle {
  font-size: var(--text-base);
  color: var(--text-secondary);
  margin: 0 0 var(--space-xl) 0;
  text-align: center;
}

/* ===== UTILITY SECTIONS ===== */
.utility-section {
  background: white;
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  margin-bottom: var(--utility-section-gap);
  box-shadow: var(--shadow-sm);
  border: var(--border-width) solid rgba(91, 158, 191, 0.1);
}

.utility-section:last-child {
  margin-bottom: 0;
}

.utility-section__title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 var(--space-md) 0;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.utility-section__subtitle {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin: 0 0 var(--space-lg) 0;
}

/* ===== INPUT COMPONENTS (Extends Calculator) ===== */
.utility-input-group {
  margin-bottom: var(--space-lg);
}

.utility-input-group:last-child {
  margin-bottom: 0;
}

.utility-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

/* Multi-line text input for utilities */
.utility-textarea {
  width: 100%;
  min-height: 120px;
  padding: var(--space-sm) var(--space-md);
  border: 2px solid var(--breeze);
  border-radius: var(--border-radius);
  background: white;
  color: var(--text-primary);
  font-size: var(--text-base);
  font-family: inherit;
  transition: all var(--transition-fast);
  box-sizing: border-box;
  resize: vertical;
}

.utility-textarea:focus {
  outline: none;
  border-color: var(--ocean);
  box-shadow: 0 0 0 3px rgba(91, 158, 191, 0.1);
}

.utility-textarea:hover {
  border-color: var(--ocean);
}

.utility-textarea::placeholder {
  color: var(--text-muted);
}

/* Code/monospace input */
.utility-input--code {
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: var(--text-sm);
  background: #F8FAFC;
}

.utility-textarea--code {
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: var(--text-sm);
  background: #F8FAFC;
}

/* URL input with validation styling */
.utility-input--url {
  padding-left: 2.5rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%235A6C7D'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M13.828 10.172a4 4 0 00-5.656 0l-4 4a4 4 0 105.656 5.656l1.102-1.101m-.758-4.899a4 4 0 005.656 0l4-4a4 4 0 00-5.656-5.656l-1.1 1.1'/%3E%3C/svg%3E");
  background-position: left var(--space-sm) center;
  background-repeat: no-repeat;
  background-size: 1.25rem 1.25rem;
}

/* ===== BUTTON COMPONENTS (Extends Calculator) ===== */
/* Generate Button */
.utility-button--generate {
  background: var(--utility-generate);
  color: white;
  box-shadow: var(--shadow-md);
}

.utility-button--generate:hover {
  background: #059669;
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

/* Convert Button */
.utility-button--convert {
  background: var(--utility-convert);
  color: white;
  box-shadow: var(--shadow-md);
}

.utility-button--convert:hover {
  background: #2563EB;
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

/* Copy Button */
.utility-button--copy {
  background: var(--utility-copy);
  color: white;
  min-width: var(--copy-button-size);
  min-height: var(--copy-button-size);
  padding: var(--space-xs);
  border-radius: var(--border-radius);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  font-size: var(--text-sm);
  transition: all var(--transition-fast);
}

.utility-button--copy:hover {
  background: #7C3AED;
  transform: scale(1.05);
}

.utility-button--copy:active {
  transform: scale(0.95);
}

/* Copy button with text */
.utility-button--copy-text {
  padding: var(--space-sm) var(--space-md);
  min-width: auto;
  min-height: var(--touch-target);
}

/* Clear Button */
.utility-button--clear {
  background: var(--utility-clear);
  color: white;
}

.utility-button--clear:hover {
  background: #4B5563;
}

/* ===== PRESET GRIDS ===== */
.utility-presets {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--preset-grid-gap);
  margin: var(--space-md) 0;
}

.utility-preset {
  background: var(--breeze);
  border: 2px solid var(--ocean);
  color: var(--ocean);
  padding: var(--space-sm);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-weight: 600;
  text-align: center;
  min-height: var(--touch-target);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
}

.utility-preset:hover {
  background: var(--ocean);
  color: white;
  transform: translateY(-1px);
}

.utility-preset.active {
  background: var(--brand);
  border-color: var(--brand);
  color: white;
}

.utility-preset__label {
  font-size: var(--text-xs);
  opacity: 0.8;
  margin-top: var(--space-xs);
}

/* Quick action presets (smaller grid) */
.utility-presets--compact {
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
}

.utility-presets--compact .utility-preset {
  padding: var(--space-xs);
  font-size: var(--text-xs);
}

/* ===== RESULT SECTIONS ===== */
.utility-results {
  background: linear-gradient(135deg, var(--breeze) 0%, var(--cloud) 100%);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  margin-top: var(--utility-section-gap);
  border: 1px solid rgba(91, 158, 191, 0.2);
}

/* Visual result display (for QR codes, colors, etc.) */
.utility-result--visual {
  text-align: center;
  margin-bottom: var(--space-lg);
  background: white;
  padding: var(--space-lg);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}

.utility-result--visual .utility-result__label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Text result with copy functionality */
.utility-result--text {
  position: relative;
}

.utility-result__output {
  background: #F8FAFC;
  border: 1px solid var(--breeze);
  border-radius: var(--border-radius);
  padding: var(--space-md);
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: var(--text-sm);
  color: var(--text-primary);
  word-break: break-all;
  white-space: pre-wrap;
  position: relative;
  min-height: 60px;
  display: flex;
  align-items: center;
}

.utility-result__copy-button {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  z-index: 1;
}

/* Multi-result grid */
.utility-results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.utility-result--card {
  background: white;
  padding: var(--space-md);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  text-align: center;
  position: relative;
}

.utility-result--card .utility-result__label {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.utility-result--card .utility-result__value {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  word-break: break-all;
}

/* ===== VISUAL COMPONENTS ===== */
/* QR Code Display */
.utility-qr-display {
  background: white;
  padding: var(--space-lg);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-preview-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.utility-qr-code {
  border: 1px solid var(--color-preview-border);
  border-radius: var(--border-radius);
  overflow: hidden;
}

.utility-qr-code img,
.utility-qr-code canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Color Preview */
.utility-color-preview {
  width: 100%;
  height: 120px;
  border-radius: var(--border-radius);
  border: 1px solid var(--color-preview-border);
  margin-bottom: var(--space-md);
  position: relative;
  overflow: hidden;
}

.utility-color-preview--large {
  height: 200px;
}

.utility-color-preview--small {
  height: 60px;
  width: 60px;
  display: inline-block;
  margin-right: var(--space-sm);
  margin-bottom: var(--space-sm);
}

/* Color palette grid */
.utility-color-palette {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

/* Password strength indicator */
.utility-strength-indicator {
  margin-top: var(--space-md);
}

.utility-strength-bar {
  width: 100%;
  height: 8px;
  background: var(--breeze);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: var(--space-sm);
}

.utility-strength-fill {
  height: 100%;
  border-radius: 4px;
  transition: all var(--transition-normal);
}

.utility-strength-fill--weak {
  width: 25%;
  background: var(--strength-weak);
}

.utility-strength-fill--medium {
  width: 60%;
  background: var(--strength-medium);
}

.utility-strength-fill--strong {
  width: 100%;
  background: var(--strength-strong);
}

.utility-strength-text {
  font-size: var(--text-sm);
  font-weight: 600;
  text-align: center;
}

.utility-strength-text--weak {
  color: var(--strength-weak);
}

.utility-strength-text--medium {
  color: var(--strength-medium);
}

.utility-strength-text--strong {
  color: var(--strength-strong);
}

/* ===== CONVERTER COMPONENTS ===== */
.utility-converter {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-md);
  align-items: end;
}

.utility-converter__from,
.utility-converter__to {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.utility-converter__swap {
  background: var(--breeze);
  border: 2px solid var(--ocean);
  color: var(--ocean);
  padding: var(--space-sm);
  border-radius: 50%;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-width: var(--touch-target);
  min-height: var(--touch-target);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-lg);
  margin-bottom: var(--space-lg);
}

.utility-converter__swap:hover {
  background: var(--ocean);
  color: white;
  transform: rotate(180deg);
}

/* Time zone display */
.utility-timezone-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.utility-timezone-card {
  background: white;
  padding: var(--space-md);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.utility-timezone-name {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.utility-timezone-time {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--text-primary);
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

.utility-timezone-date {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

/* ===== STATE COMPONENTS ===== */
/* Success state for copies */
.utility-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--utility-generate);
  border-radius: var(--border-radius);
  padding: var(--space-md);
  color: var(--utility-generate);
  font-size: var(--text-sm);
  margin-top: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* Processing state */
.utility-processing {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-lg);
  color: var(--text-secondary);
}

.utility-processing__spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--breeze);
  border-top: 2px solid var(--utility-convert);
  border-radius: 50%;
  animation: utility-spin 1s linear infinite;
}

@keyframes utility-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ===== UTILITY CLASSES ===== */
.utility-hidden {
  display: none;
}

.utility-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;
}

.utility-text-center {
  text-align: center;
}

.utility-text-left {
  text-align: left;
}

.utility-text-right {
  text-align: right;
}

.utility-text-mono {
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

.utility-mb-0 { margin-bottom: 0; }
.utility-mb-sm { margin-bottom: var(--space-sm); }
.utility-mb-md { margin-bottom: var(--space-md); }
.utility-mb-lg { margin-bottom: var(--space-lg); }

.utility-mt-0 { margin-top: 0; }
.utility-mt-sm { margin-top: var(--space-sm); }
.utility-mt-md { margin-top: var(--space-md); }
.utility-mt-lg { margin-top: var(--space-lg); }

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 640px) {
  .utility {
    margin: var(--space-sm);
    padding: var(--space-sm);
  }
  
  .utility-section {
    padding: var(--space-md);
  }
  
  .utility-results-grid {
    grid-template-columns: 1fr;
  }
  
  .utility-converter {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
  
  .utility-converter__swap {
    margin: 0 auto;
    transform: rotate(90deg);
  }
  
  .utility-converter__swap:hover {
    transform: rotate(270deg);
  }
  
  .utility-presets {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .utility-timezone-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .utility__title {
    font-size: var(--text-xl);
  }
  
  .utility-presets {
    grid-template-columns: 1fr;
  }
  
  .utility-result__output {
    font-size: var(--text-xs);
    padding: var(--space-sm);
  }
  
  .utility-color-preview {
    height: 80px;
  }
  
  .utility-qr-display {
    padding: var(--space-md);
  }
}

/* ===== ACCESSIBILITY ENHANCEMENTS ===== */
@media (prefers-reduced-motion: reduce) {
  .utility-converter__swap,
  .utility-strength-fill,
  .utility-processing__spinner {
    animation: none;
    transition: none;
  }
}

@media (prefers-contrast: high) {
  .utility-input--code,
  .utility-textarea--code,
  .utility-result__output {
    background: white;
    border-width: 2px;
  }
  
  .utility-color-preview {
    border-width: 2px;
  }
}

/* Focus indicators for keyboard navigation */
.utility-preset:focus,
.utility-button--copy:focus,
.utility-converter__swap:focus {
  outline: 3px solid var(--brand);
  outline-offset: 2px;
}

/* ===== PRINT STYLES ===== */
@media print {
  .utility {
    box-shadow: none;
    border: 1px solid #ddd;
  }
  
  .utility-button--copy,
  .utility-button--generate,
  .utility-button--convert,
  .utility-button--clear {
    display: none;
  }
  
  .utility-results {
    background: none;
    border: 1px solid #ddd;
  }
  
  .utility-result--visual {
    break-inside: avoid;
  }
}

/* ===== COMPONENT VARIATIONS ===== */
/* Compact utility for simpler tools */
.utility--compact {
  max-width: 500px;
  padding: var(--space-sm);
}

.utility--compact .utility-section {
  padding: var(--space-md);
  margin-bottom: var(--space-md);
}

/* Full-width utility for complex tools */
.utility--wide {
  max-width: 900px;
}

/* Side-by-side layout for converters */
@media (min-width: 768px) {
  .utility--two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    max-width: 1000px;
  }
  
  .utility--two-column .utility-results {
    grid-column: 1 / -1;
  }
}

/* ===== ANIMATION HELPERS ===== */
.utility-fade-in {
  animation: utility-fade-in 0.3s ease-in-out;
}

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

.utility-scale-in {
  animation: utility-scale-in 0.2s ease-out;
}

@keyframes utility-scale-in {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}