h1 {
  margin-top: 32px;
  margin-bottom: 8px;
  font-size: 2rem;
}

.lede {
  color: var(--muted);
  margin-top: 0;
  margin-bottom: 28px;
  max-width: 60ch;
}

.tool {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
}

.tool-heading {
  font-size: 1.1rem;
  margin: 0 0 16px;
}

.now-row {
  margin: 0 0 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.now-row strong {
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.field-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.unit-badge {
  font-weight: 600;
  color: var(--accent);
  font-size: 0.78rem;
}

#tsInput {
  width: 100%;
  font: inherit;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 1.1rem;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  color: var(--ink);
}

.hint {
  color: #c0392b;
  font-size: 0.85rem;
  margin: 10px 0 0;
}

.result-rows {
  margin-top: 20px;
  display: grid;
  gap: 12px;
}

.result-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  align-items: baseline;
  gap: 4px 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.result-row:last-child { border-bottom: none; }

.result-row__label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
}

.result-row__label select {
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 4px 6px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg);
  color: var(--ink);
  max-width: 100%;
}

.result-row__value {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.result-row__relative {
  grid-column: 2;
  color: var(--muted);
  font-size: 0.8rem;
}

.btn {
  font: inherit;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  cursor: pointer;
}

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

.btn--small {
  padding: 3px 10px;
  font-size: 0.8rem;
}

.reverse-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.reverse-row label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.reverse-row input, .reverse-row select {
  font: inherit;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  color: var(--ink);
}

.faq { margin-top: 48px; max-width: 70ch; }

.faq h2 { font-size: 1.3rem; margin-top: 32px; }

details {
  border-bottom: 1px solid var(--line);
  padding: 12px 0;
}

details summary {
  cursor: pointer;
  font-weight: 600;
}

@media (max-width: 640px) {
  .result-row { grid-template-columns: 1fr; }
  .result-row__relative { grid-column: 1; }
}