/* Font Tools - Style.css */

:root {
  --primary: #059669;
  --primary-hover: #047857;
  --primary-bg: #ecfdf5;
  --secondary: #6b7280;
  --secondary-hover: #4b5563;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --background: #f8fafc;
  --surface: #ffffff;
  --card-bg: #ffffff;
  --border: #e5e7eb;
  --text: #1f2937;
  --text-muted: #6b7280;
  --text-light: #9ca3af;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --transition: 150ms ease;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

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

body {
  font-family: var(--font-sans);
  background: var(--background);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Header */
.header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 24px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header h1 {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.tagline {
  color: var(--text-muted);
  margin-top: 4px;
  font-size: 1rem;
}

/* Main */
.main {
  flex: 1;
  padding: 32px 0;
}

/* Tools Navigation */
.tools-nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.tool-card {
  display: flex;
  flex-direction: column;
  padding: 24px;
  background: var(--card-bg);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--text);
  transition: all var(--transition);
}

.tool-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.tool-card.active {
  border-color: var(--primary);
  background: var(--primary-bg);
}

.tool-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.tool-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.tool-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Tool Panels */
.tool-panel {
  animation: fadeIn 200ms ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.tool-header {
  margin-bottom: 24px;
}

.tool-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.tool-header p {
  color: var(--text-muted);
}

/* Controls */
.preview-controls,
.pairing-controls,
.subsetting-controls,
.variable-controls,
.glyph-controls {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}

.control-group {
  margin-bottom: 20px;
}

.control-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 8px;
  font-size: 0.875rem;
}

.control-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.control-row .control-group {
  margin-bottom: 0;
}

.input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  background: var(--surface);
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-bg);
}

.input[type="range"] {
  padding: 0;
  height: 20px;
  -webkit-appearance: none;
  background: transparent;
}

.input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  background: var(--border);
  border-radius: 2px;
}

.input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  background: var(--primary);
  border-radius: 50%;
  margin-top: -6px;
  cursor: pointer;
}

.input[type="color"] {
  padding: 2px;
  height: 36px;
}

.hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.radio-group {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.radio-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 400;
  cursor: pointer;
  margin-bottom: 0;
}

.radio-group input[type="radio"] {
  accent-color: var(--primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}

.btn-secondary:hover {
  background: var(--background);
  border-color: var(--text-muted);
}

.btn-outline {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border);
}

.btn-outline:hover {
  background: var(--background);
  color: var(--text);
  border-color: var(--text-muted);
}

.btn-success {
  background: var(--success);
  color: white;
  border-color: var(--success);
}

.btn-danger {
  background: var(--danger);
  color: white;
  border-color: var(--danger);
}

.btn-warning {
  background: var(--warning);
  color: white;
  border-color: var(--warning);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: transparent;
  padding: 8px;
}

.btn-ghost:hover {
  background: var(--background);
  color: var(--text);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
}

/* Preview Area */
.preview-area {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: 24px;
  margin-bottom: 24px;
}

@media (max-width: 900px) {
  .preview-area {
    grid-template-columns: 1fr;
  }
}

.preview-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-content {
  width: 100%;
  word-wrap: break-word;
  white-space: pre-wrap;
}

.preview-sizes {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.size-samples {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.size-sample {
  padding: 8px 12px;
  background: var(--background);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.size-sample .sample-text {
  margin-top: 4px;
  font-family: inherit;
}

/* CSS Output */
.css-output {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.css-output h4 {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-muted);
}

.css-output pre {
  background: #1e293b;
  color: #e2e8f0;
  padding: 16px;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.6;
  overflow-x: auto;
  max-height: 300px;
  margin-bottom: 12px;
}

/* Pairings Grid */
.pairings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 16px;
}

.pairing-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: all var(--transition);
}

.pairing-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.pairing-card.featured {
  border-color: var(--primary);
  background: var(--primary-bg);
}

.pairing-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}

.pairing-category {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-bg);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

.pairing-fonts {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pairing-font {
  padding: 16px;
  background: var(--background);
  border-radius: var(--radius-md);
}

.pairing-font .font-role {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.pairing-font .font-name {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.pairing-font .font-sample {
  font-size: 1rem;
  color: var(--text-muted);
}

.pairing-font.heading .font-sample {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text);
}

.pairing-actions {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}

/* Subsetting */
.subset-results {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-top: 24px;
}

.subset-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
  margin: 16px 0;
}

.subset-stat {
  text-align: center;
  padding: 16px;
  background: var(--background);
  border-radius: var(--radius-md);
}

.subset-stat .stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.subset-stat .stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.info-card {
  background: var(--primary-bg);
  border: 1px solid var(--primary);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.info-card h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}

.info-card p {
  font-size: 0.875rem;
  color: var(--text);
  line-height: 1.6;
  margin-bottom: 8px;
}

.info-card code {
  background: var(--surface);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

/* Variable Font */
.variable-preview {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  margin-bottom: 24px;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.variable-preview-content {
  width: 100%;
  word-wrap: break-word;
}

.axes-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin: 20px 0;
}

.axis-control {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
}

.axis-control label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 0.875rem;
}

.axis-control .axis-value {
  font-family: var(--font-mono);
  color: var(--primary);
  font-weight: 600;
}

.axis-control .input[type="range"] {
  width: 100%;
}

/* Glyph Inspector */
.glyph-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: 8px;
  margin-top: 24px;
}

.glyph-cell {
  aspect-ratio: 1;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  cursor: pointer;
  transition: all var(--transition);
  overflow: hidden;
}

.glyph-cell:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
  transform: scale(1.05);
  z-index: 1;
}

.glyph-cell.selected {
  border-color: var(--primary);
  background: var(--primary-bg);
  box-shadow: 0 0 0 2px var(--primary);
}

.glyph-detail {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-top: 24px;
}

.glyph-detail h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.glyph-detail-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.glyph-detail-item {
  padding: 12px;
  background: var(--background);
  border-radius: var(--radius-md);
}

.glyph-detail-item .detail-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.glyph-detail-item .detail-value {
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

/* Footer */
.footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 24px 0;
  margin-top: auto;
}

.footer p {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.footer a {
  color: var(--primary);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

/* Toolbar divider */
.toolbar-divider {
  width: 1px;
  background: var(--border);
  margin: 0 8px;
  min-height: 24px;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
}

.badge-primary {
  background: var(--primary-bg);
  color: var(--primary);
}

.badge-outline {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

/* Utility */
.hidden {
  display: none !important;
}

.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;
}