:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --bg-card: #151b23;
  --text-primary: #e6edf3;
  --text-secondary: #9198a1;
  --text-muted: #6e7681;
  --accent-blue: #58a6ff;
  --accent-purple: #bc8cff;
  --accent-green: #238636;
  --accent-green-hover: #2ea043;
  --border-color: #30363d;
  --border-subtle: #21262d;
  --border-focus: #58a6ff;
  --code-bg: #0d1117;
  --yaml-key: #79c0ff;
  --yaml-value: #a5d6ff;
  --yaml-string: #a5d6ff;
  --yaml-comment: #8b949e;
  --heading-color: #d2a8ff;
  --success: #3fb950;
  --warning: #d29922;
  --danger: #f85149;
  --glow-blue: rgba(88, 166, 255, 0.15);
  --glow-purple: rgba(188, 140, 255, 0.1);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --radius-md: 8px;
  --radius-lg: 12px;
  --transition-fast: 0.15s ease;
  --transition-med: 0.25s ease;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}
/* Subtle radial glow behind content */
body::before {
  content: '';
  position: fixed;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(88,166,255,0.04) 0%, rgba(188,140,255,0.02) 40%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

a {
  color: var(--accent-blue);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* Layout */
.container {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

/* Gradient accent bar at top */
.gradient-bar {
  height: 3px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple), var(--accent-blue));
  background-size: 200% 100%;
  animation: gradientShift 6s ease infinite;
}
@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* Header */
.site-header {
  padding: 2.5rem 0 1.75rem;
  text-align: center;
  background: linear-gradient(180deg, rgba(22,27,34,0.8) 0%, transparent 100%);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 2.5rem;
}
.header-title {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.5rem;
}
.header-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}
.site-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: #f0f6fc;
  letter-spacing: -0.02em;
}
.site-header .subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto 0.75rem;
  line-height: 1.5;
}

/* Progress bar */
.progress-bar {
  display: flex;
  gap: 0;
  margin-bottom: 2.5rem;
  position: relative;
  padding: 0 2rem;
}
.progress-step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  position: relative;
  z-index: 1;
}
.progress-step .step-indicator {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-secondary);
  transition: all var(--transition-med);
  position: relative;
}
.progress-step .step-label {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
  text-align: center;
  transition: color var(--transition-med);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.progress-step.active .step-indicator {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  background: rgba(88, 166, 255, 0.1);
  box-shadow: 0 0 0 4px rgba(88, 166, 255, 0.08);
  animation: pulseRing 2s ease-in-out infinite;
}
@keyframes pulseRing {
  0%, 100% { box-shadow: 0 0 0 4px rgba(88, 166, 255, 0.08); }
  50% { box-shadow: 0 0 0 8px rgba(88, 166, 255, 0.04); }
}
.progress-step.active .step-label {
  color: var(--accent-blue);
  font-weight: 600;
}
.progress-step.completed .step-indicator {
  border-color: var(--accent-green);
  background: var(--accent-green);
  color: #fff;
  box-shadow: none;
  animation: none;
}
.progress-step.completed .step-label {
  color: var(--success);
}
/* Connecting line between steps */
.progress-step::after {
  content: '';
  position: absolute;
  top: 18px;
  left: calc(50% + 22px);
  width: calc(100% - 44px);
  height: 2px;
  background: var(--border-color);
  transition: background var(--transition-med);
}
.progress-step:last-child::after {
  display: none;
}
.progress-step.completed::after {
  background: linear-gradient(90deg, var(--accent-green), var(--accent-green));
}
.progress-step.active::after {
  background: var(--border-color);
}

/* Steps */
.wizard-step {
  display: none;
}
.wizard-step.active {
  display: block;
  animation: slideIn 0.3s ease;
}
.wizard-step.slide-out-left {
  animation: slideOutLeft 0.2s ease forwards;
}
.wizard-step.slide-out-right {
  animation: slideOutRight 0.2s ease forwards;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateX(30px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes slideInReverse {
  from { opacity: 0; transform: translateX(-30px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes slideOutLeft {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(-30px); }
}
@keyframes slideOutRight {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(30px); }
}

.step-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: #f0f6fc;
  margin-bottom: 0.35rem;
  letter-spacing: -0.01em;
}
.step-description {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.75rem;
}

/* Form elements */
.option-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
/* 2-col grid for archetype cards */
.option-group.archetype-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
}

.option-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}
.option-card:hover {
  border-color: #484f58;
  background: var(--bg-tertiary);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.option-card.selected {
  border-color: var(--accent-blue);
  background: rgba(88, 166, 255, 0.05);
  box-shadow: 0 0 0 1px var(--accent-blue), 0 2px 12px rgba(88,166,255,0.08);
}
.option-card.selected::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 3px;
  background: var(--accent-blue);
  border-radius: 0 3px 3px 0;
}

/* Archetype icon */
.archetype-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}
.option-card:hover .archetype-icon {
  border-color: #484f58;
}
.option-card.selected .archetype-icon {
  background: rgba(88,166,255,0.1);
  border-color: var(--accent-blue);
}

.option-card input[type="radio"],
.option-card input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border-color);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 2px;
  cursor: pointer;
  position: relative;
  transition: all var(--transition-fast);
}
.option-card input[type="checkbox"] {
  border-radius: 4px;
}
.option-card input[type="radio"]:checked,
.option-card input[type="checkbox"]:checked {
  border-color: var(--accent-blue);
  background: var(--accent-blue);
  animation: checkPop 0.2s ease;
}
@keyframes checkPop {
  0% { transform: scale(1); }
  50% { transform: scale(1.15); }
  100% { transform: scale(1); }
}
.option-card input[type="radio"]:checked::after {
  content: '';
  position: absolute;
  top: 3px; left: 3px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #fff;
}
.option-card input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  top: -1px; left: 2px;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
}
/* Hide radio/checkbox in archetype grid — icon replaces it */
.archetype-grid .option-card input[type="radio"] {
  display: none;
}

.option-info {
  flex: 1;
  min-width: 0;
}
.option-info .option-label {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.option-info .option-desc {
  color: var(--text-secondary);
  font-size: 0.8rem;
  margin-top: 2px;
  line-height: 1.4;
}

/* Text input / textarea */
.text-input,
.text-area {
  width: 100%;
  padding: 0.7rem 0.9rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  line-height: 1.5;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.text-input:focus,
.text-area:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.12);
}
.text-area {
  min-height: 80px;
  resize: vertical;
}

.conditional-field {
  display: none;
  margin-top: 1rem;
  padding: 1rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}
.conditional-field.visible {
  display: block;
  animation: slideIn 0.2s ease;
}
.conditional-field label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

/* Navigation buttons */
.step-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1.4rem;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: var(--font-sans);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}
.btn-secondary:hover {
  background: var(--border-color);
  border-color: #484f58;
}
.btn-primary {
  background: var(--accent-green);
  color: #fff;
  border-color: var(--accent-green);
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.btn-primary:hover {
  background: var(--accent-green-hover);
  box-shadow: 0 2px 6px rgba(46,160,67,0.25);
}
.btn-primary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  box-shadow: none;
}
.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.82rem;
}

/* Preview */
.preview-container {
  margin-top: 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 1rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}
.preview-header h3 {
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.preview-header h3::before {
  content: '📄';
  font-size: 0.85rem;
}
.preview-actions {
  display: flex;
  gap: 0.5rem;
}

.preview-code {
  background: var(--code-bg);
  padding: 1.25rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-wrap: break-word;
  max-height: 500px;
  overflow-y: auto;
}
.preview-code .yaml-delim { color: var(--yaml-comment); }
.preview-code .yaml-key   { color: var(--yaml-key); }
.preview-code .yaml-value { color: var(--yaml-value); }
.preview-code .md-heading  { color: var(--heading-color); font-weight: 700; }
.preview-code .md-list     { color: var(--text-primary); }
.preview-code .md-bold     { color: #f0f6fc; font-weight: 600; }
.preview-code .md-number   { color: var(--accent-blue); }

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  padding: 0.65rem 1.3rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  font-size: 0.85rem;
  font-weight: 500;
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 100;
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 2rem 0;
  margin-top: 4rem;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.8rem;
  line-height: 1.7;
}
.site-footer a {
  color: var(--text-secondary);
}
.site-footer a:hover {
  color: var(--accent-blue);
}

/* Customize text field (always visible) */
.customize-field {
  margin-top: 1rem;
}
.customize-field label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

/* Format toggle */
.format-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
  margin-bottom: 1.5rem;
}
.format-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.15rem;
  padding: 0.85rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
  color: var(--text-primary);
  font-family: var(--font-sans);
}
.format-btn:hover {
  border-color: #484f58;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.format-btn.active {
  border-color: var(--accent-blue);
  background: rgba(88, 166, 255, 0.05);
  box-shadow: 0 0 0 1px var(--accent-blue);
}
.format-btn.active::after {
  content: '';
}
.format-icon {
  font-size: 1.2rem;
  margin-bottom: 0.15rem;
}
.format-label {
  font-weight: 600;
  font-size: 0.92rem;
}
.format-desc {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.3;
}
.format-desc code {
  background: var(--bg-tertiary);
  padding: 1px 4px;
  border-radius: 3px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
}

/* Next steps panel */
.next-steps-panel {
  margin-top: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}
.next-steps-panel h3 {
  font-size: 0.92rem;
  color: #f0f6fc;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.next-steps-panel h3::before {
  content: '🚀';
}
.next-step {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  padding: 0.5rem 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.55;
}
.next-step-num {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent-blue);
  margin-top: 1px;
}
.next-step code {
  background: var(--bg-tertiary);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-primary);
}
.next-step a {
  color: var(--accent-blue);
}

/* Responsive */
@media (max-width: 640px) {
  .site-header { padding: 2rem 0 1.5rem; }
  .site-header h1 { font-size: 1.35rem; }
  .header-icon { width: 26px; height: 26px; }
  .option-group.archetype-grid { grid-template-columns: 1fr; }
  .format-toggle { grid-template-columns: 1fr; }
  .archetype-icon { width: 34px; height: 34px; font-size: 1rem; }
  .progress-step .step-label { display: none; }
  .progress-step .step-indicator { width: 30px; height: 30px; font-size: 0.75rem; }
  .progress-step::after { top: 15px; left: calc(50% + 19px); width: calc(100% - 38px); }
  .progress-bar { padding: 0 0.5rem; }
  .step-nav { flex-direction: column-reverse; gap: 0.75rem; }
  .step-nav .btn { width: 100%; justify-content: center; }
  .preview-header { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .preview-actions { width: 100%; }
  .preview-actions .btn { flex: 1; justify-content: center; }
  .insights-grid { gap: 1rem; }
  .insight-item { min-width: 70px; }
  .step-title { font-size: 1.2rem; }
}

/* Focus visible for a11y */
.option-card:focus-within {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
}
.btn:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
}
.text-input:focus-visible,
.text-area:focus-visible {
  outline: none;
}