/* style.css - Shared styles for Cucumber Chamber */

:root {
  /* Colors */
  --text: #111;
  --muted: rgba(0, 0, 0, 0.55);
  --rule: rgba(0, 0, 0, 0.15);
  --underline: rgba(80, 160, 255, 0.55);
  --underline-hover: rgba(80, 160, 255, 0.85);
  --underline-active: rgba(80, 160, 255, 1);
  --error: #ef4444;
  --success: #10b981;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 14px;
  --spacing-lg: 22px;
  --spacing-xl: 32px;
  
  /* Typography */
  --font-main: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.2s ease;
  --transition-slow: 0.3s ease;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

/* Reset & Base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  background: #fff;
  color: var(--text);
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Screen Reader Only */
.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 Styles */
:focus-visible {
  outline: 2px solid var(--underline-active);
  outline-offset: 2px;
}

/* Links */
a {
  color: inherit;
  text-decoration: none;
}

/* Buttons */
button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Link Buttons (styled like links) */
.link-btn {
  font-size: 13px;
  color: var(--text);
  border-bottom: 1px solid var(--underline);
  padding-bottom: 2px;
  transition: border-bottom-width var(--transition-fast);
  display: inline-block;
}

.link-btn:hover:not(:disabled) {
  border-bottom-width: 2px;
  border-bottom-color: var(--underline-hover);
}

.link-btn.active,
.link-btn[aria-pressed="true"] {
  border-bottom-width: 2px;
  border-bottom-color: var(--underline-active);
}

/* Section Labels */
.section-label {
  margin-top: var(--spacing-md);
  font-size: 13px;
  color: var(--muted);
  font-weight: 500;
}

/* Status Text */
.status {
  margin-top: var(--spacing-md);
  font-size: 12px;
  color: var(--muted);
  font-family: var(--font-mono);
}

/* Dotted Divider */
hr.dotted {
  border: none;
  margin: 15px 0;
  border-top: 2px dotted rgba(0, 0, 0, 0.4);
}

/* Links Container */
.links {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-top: var(--spacing-sm);
}

/* Slider Control */
.slider-control {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: var(--spacing-sm);
}

input[type="range"] {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: var(--rule);
  appearance: none;
  cursor: pointer;
  transition: background var(--transition-base);
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--underline-active);
  cursor: pointer;
  transition: transform var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

input[type="range"]::-webkit-slider-thumb:active {
  transform: scale(1.05);
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--underline-active);
  cursor: pointer;
  border: none;
  transition: transform var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

input[type="range"]::-moz-range-thumb:hover {
  transform: scale(1.15);
}

input[type="range"]::-moz-range-thumb:active {
  transform: scale(1.05);
}

output {
  font-size: 12px;
  color: var(--muted);
  min-width: 18px;
  text-align: right;
  font-family: var(--font-mono);
}

/* Notification Toast */
.notification-toast {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  background: rgba(0, 0, 0, 0.9);
  color: white;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 14px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--transition-base), transform var(--transition-base);
  z-index: 1000;
  pointer-events: none;
  max-width: 300px;
}

.notification-toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* Error Toast */
.notification-toast.error {
  background: var(--error);
}

/* Success Toast */
.notification-toast.success {
  background: var(--success);
}

/* Keyboard Hints */
.keyboard-hints {
  margin-top: var(--spacing-md);
  font-size: 11px;
  color: var(--muted);
  font-family: var(--font-mono);
}

.keyboard-hints kbd {
  display: inline-block;
  padding: 2px 6px;
  background: rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(0, 0, 0, 0.15);
  border-radius: 3px;
  font-size: 10px;
  font-family: var(--font-mono);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.1);
}

/* Hint Overlay (for discoverability) */
.hint-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 1;
  transition: opacity var(--transition-slow);
  z-index: 5;
}

.hint-overlay.hidden {
  opacity: 0;
}

.hint {
  background: rgba(0, 0, 0, 0.75);
  color: white;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 14px;
  animation: pulse 2s ease-in-out infinite;
  box-shadow: var(--shadow-lg);
}

@keyframes pulse {
  0%, 100% { 
    transform: scale(1);
    opacity: 1;
  }
  50% { 
    transform: scale(1.05);
    opacity: 0.9;
  }
}

/* Tutorial Overlay */
.tutorial {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: var(--spacing-lg);
}

.tutorial-content {
  background: white;
  padding: var(--spacing-xl);
  border-radius: 12px;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
}

.tutorial-content h2 {
  font-size: 20px;
  margin-bottom: var(--spacing-md);
  font-weight: 600;
}

.tutorial-content ul {
  list-style: none;
  margin: var(--spacing-md) 0;
}

.tutorial-content li {
  padding: var(--spacing-sm) 0;
  font-size: 15px;
}

.tutorial-content button {
  width: 100%;
  padding: 12px;
  background: var(--underline-active);
  color: white;
  border-radius: 6px;
  font-weight: 500;
  margin-top: var(--spacing-md);
  transition: background var(--transition-base);
}

.tutorial-content button:hover {
  background: var(--underline-hover);
}

/* Loading State */
.loading {
  opacity: 0.5;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

/* Fade Transition */
.fade-enter {
  opacity: 0;
}

.fade-enter-active {
  opacity: 1;
  transition: opacity var(--transition-base);
}

.fade-exit {
  opacity: 1;
}

.fade-exit-active {
  opacity: 0;
  transition: opacity var(--transition-base);
}

/* Canvas Transitions */
canvas {
  transition: opacity var(--transition-base);
}

canvas.regenerating {
  opacity: 0.5;
}

/* Mobile Adjustments */
@media (max-width: 740px) {
  .link-btn {
    font-size: 13px;
  }
  
  .keyboard-hints {
    display: none; /* Hide keyboard shortcuts on mobile */
  }
  
  .notification-toast {
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    left: var(--spacing-md);
    max-width: none;
  }
}

/* Print Styles */
@media print {
  .notification-toast,
  .tutorial,
  .hint-overlay,
  button,
  .links {
    display: none !important;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --text: #000;
    --underline: rgba(0, 0, 255, 1);
    --underline-hover: rgba(0, 0, 255, 1);
    --underline-active: rgba(0, 0, 255, 1);
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .hint {
    animation: none;
  }
}