.typo-tool {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1rem, 3vw, 1.75rem);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-8);
}

.typo-form {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .typo-form { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
  .typo-form { grid-template-columns: repeat(3, 1fr); }
}

.typo-field { display: flex; flex-direction: column; gap: 0.35rem; }
.typo-field label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text);
}
.typo-field input,
.typo-field select {
  padding: 0.6rem 0.75rem;
  font-size: 0.9375rem;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  min-height: 42px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.typo-field input:focus,
.typo-field select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}
.typo-field input[type="color"] {
  padding: 0.25rem;
  height: 42px;
  cursor: pointer;
}

.typo-result {
  margin-top: var(--space-5);
  padding: var(--space-4);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.typo-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}
.typo-row:last-child { border-bottom: none; }
.typo-key {
  font-weight: 600;
  color: var(--color-text-secondary);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.typo-val {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-text);
  background: var(--color-surface);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--color-border);
  cursor: pointer;
}
.typo-val:hover { border-color: var(--color-primary); color: var(--color-primary); }

.typo-code-block {
  margin-top: var(--space-4);
  background: #0F172A;
  border-radius: var(--radius-md);
  overflow: hidden;
}
.typo-code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 1rem;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  font-size: 0.75rem;
  font-weight: 600;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.typo-code-copy {
  padding: 0.3rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-teal);
  background: rgba(13, 148, 136, 0.15);
  border-radius: var(--radius-xs);
  cursor: pointer;
  min-height: 30px;
}
.typo-code-copy:hover { background: var(--color-teal); color: #fff; }
.typo-code-body {
  padding: 1rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: #E2E8F0;
  overflow-x: auto;
  white-space: pre;
}

.typo-preview {
  margin-top: var(--space-5);
  padding: clamp(1rem, 3vw, 1.75rem);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.typo-preview-text {
  color: var(--color-text);
  word-wrap: break-word;
  line-height: 1.6;
}

.typo-contrast-box {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr 1fr;
  margin-bottom: var(--space-4);
}
.typo-swatch {
  padding: var(--space-6);
  border-radius: var(--radius-md);
  text-align: center;
  font-weight: 600;
  font-size: 1.1rem;
  border: 1px solid var(--color-border);
}
.typo-ratio {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  text-align: center;
  color: var(--color-text);
  letter-spacing: -0.02em;
  margin-block: var(--space-3);
}
.typo-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
  margin-bottom: var(--space-4);
}
.typo-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.85rem;
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: var(--radius-full);
}
.typo-badge-pass {
  background: var(--color-teal-light);
  color: var(--color-teal);
}
.typo-badge-fail {
  background: #FEE2E2;
  color: #991B1B;
}

.typo-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--space-3);
  font-size: 0.875rem;
}
.typo-table th,
.typo-table td {
  padding: 0.65rem 0.5rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}
.typo-table th {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.typo-table td {
  font-family: var(--font-mono);
  color: var(--color-text);
}
.typo-table tr:last-child td { border-bottom: none; }

.typo-weight-demo {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: var(--space-3);
}
.typo-weight-line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-3);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
}
.typo-weight-line:last-child { border-bottom: none; }
.typo-weight-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
  min-width: 60px;
}
.typo-weight-sample {
  font-size: 1.5rem;
  color: var(--color-text);
  flex: 1;
}

.typo-pairing-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
  margin-top: var(--space-4);
}
@media (min-width: 768px) {
  .typo-pairing-grid { grid-template-columns: repeat(2, 1fr); }
}

.typo-pairing-card {
  padding: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.typo-pairing-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}
.typo-pairing-heading {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--color-text);
}
.typo-pairing-body {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-3);
}
.typo-pairing-meta {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.typo-compare-grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .typo-compare-grid { grid-template-columns: repeat(2, 1fr); }
}
.typo-compare-card {
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.typo-compare-name {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-2);
}
.typo-compare-sample {
  font-size: 1.25rem;
  line-height: 1.4;
  color: var(--color-text);
}

.typo-playground-editor {
  width: 100%;
  min-height: 180px;
  padding: var(--space-4);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.7;
  color: #E2E8F0;
  background: #0F172A;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  resize: vertical;
}
.typo-playground-editor:focus {
  outline: none;
  border-color: var(--color-primary);
}

.typo-slider {
  width: 100%;
  height: 6px;
  margin-block: var(--space-2) var(--space-4);
  background: var(--color-border);
  border-radius: var(--radius-full);
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
}
.typo-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 2px solid #fff;
  box-shadow: var(--shadow-sm);
}
.typo-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 2px solid #fff;
}

.typo-multi {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-block: var(--space-3);
}
.typo-multi-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-full);
}
.typo-multi-chip button {
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
}
.typo-multi-chip button:hover { color: var(--color-danger); }

.typo-select-row {
  display: flex;
  gap: var(--space-2);
  align-items: stretch;
}
.typo-select-row select { flex: 1; }