:root {
  --color-paper: #f4f1e8;
  --color-paper-deep: #ece7d9;
  --color-ink: #1c1b18;
  --color-ink-soft: #6b665b;
  --color-line: #d9d3c3;
  --color-accent: #d8442a;
  --color-accent-deep: #b0331d;
  --color-mark: #e0a92e;
  --font-display: Inter, Noto Sans TC, sans-serif;
  --font-body: Inter, Noto Sans TC, sans-serif;
  --font-mono: Inter, Noto Sans TC, sans-serif;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

.tool-intro {
  max-width: 64ch;
  margin-block: 24px 40px;
  color: #6b665b;
}

.font-grid-empty {
  margin: 0 0 24px;
  font-size: 1rem;
  color: #6b665b;
}

.font-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}

.font-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  text-align: left;
  background: #ece7d9;
  border: 1px solid #d9d3c3;
  border-radius: 2px;
  cursor: pointer;
  transition: border-color 0.4s cubic-bezier(0.22, 0.61, 0.36, 1), box-shadow 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.font-card:hover {
  border-color: #1c1b18;
}
.font-card.is-active {
  border-color: #d8442a;
  box-shadow: 4px 4px 0 rgba(28, 27, 24, 0.12);
}

.font-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.font-card-filename {
  overflow: hidden;
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  color: #6b665b;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.font-card-remove {
  flex: 0 0 auto;
  color: #6b665b;
  transition: color 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.font-card-remove:hover {
  color: #d8442a;
}

.font-card-preview {
  margin: 0;
  overflow: hidden;
  font-size: 1.75rem;
  line-height: 1.2;
  color: #1c1b18;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.font-card-meta {
  margin: 0;
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  letter-spacing: 0.03em;
  color: #6b665b;
}

.font-card-error {
  margin: 0;
  font-size: 1rem;
  color: #d8442a;
}

.detail-empty {
  margin: 0 0 24px;
  font-size: 1rem;
  color: #6b665b;
}

.meta-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: flex-start;
  justify-content: space-between;
}

.meta-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 24px;
  row-gap: 8px;
  flex: 1 1 420px;
}

.meta-label {
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: #6b665b;
  white-space: nowrap;
}

.meta-value {
  font-weight: 600;
  color: #1c1b18;
  word-break: break-word;
}

.meta-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  flex: 0 0 auto;
}

.copy-hint {
  min-height: 1.4em;
  margin: 0;
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  color: #d8442a;
}

.waterfall-input {
  width: 100%;
  padding: 16px 24px;
  margin-bottom: 24px;
  font-size: 1rem;
  color: #1c1b18;
  background: #f4f1e8;
  border: 1.5px solid #1c1b18;
  border-radius: 2px;
  transition: border-color 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.waterfall-input:focus {
  outline: none;
  border-color: #d8442a;
}

.waterfall-rows {
  display: flex;
  flex-direction: column;
  border-top: 1px solid #d9d3c3;
}

.waterfall-row {
  display: flex;
  align-items: baseline;
  gap: 24px;
  padding-block: 16px;
  overflow-x: auto;
  border-bottom: 1px solid #d9d3c3;
}

.waterfall-size {
  flex: 0 0 auto;
  min-width: 3.5em;
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  color: #6b665b;
  font-variant-numeric: tabular-nums;
}

.waterfall-sample {
  color: #1c1b18;
  white-space: nowrap;
}

.coverage-empty {
  margin: 0;
  font-size: 1rem;
  color: #6b665b;
}

.coverage-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.coverage-row {
  display: grid;
  grid-template-columns: 13em 1fr 7em;
  align-items: center;
  gap: 16px;
}

.coverage-label {
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  color: #6b665b;
}

.coverage-bar {
  height: 10px;
  overflow: hidden;
  background: #ece7d9;
  border: 1px solid #d9d3c3;
  border-radius: 2px;
}

.coverage-fill {
  height: 100%;
  background: #d8442a;
  transition: width 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.coverage-count {
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  color: #6b665b;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.charcheck-input {
  min-height: 120px;
}

.charcheck-result {
  display: flex;
  flex-wrap: wrap;
  padding: 16px;
  margin-bottom: 8px;
  font-size: 1.25rem;
  line-height: 1.8;
  background: #ece7d9;
  border: 1px solid #d9d3c3;
  border-radius: 2px;
}
.charcheck-result:empty {
  display: none;
}

.char-ok {
  color: #1c1b18;
}

.char-missing {
  color: #d8442a;
  text-decoration: underline wavy #d8442a;
  text-underline-offset: 3px;
}

.charcheck-summary {
  margin: 0;
  font-family: "Inter", "Noto Sans TC", sans-serif;
  font-size: 1rem;
  color: #6b665b;
}

@media (max-width: 640px) {
  .coverage-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .coverage-count {
    text-align: left;
  }
  .meta-grid {
    grid-template-columns: 1fr;
  }
  .meta-label {
    margin-top: 8px;
  }
}