/* CSS 단위 변환 전용 스타일 */

nav { max-width: 760px; }
main { max-width: 760px; }

/* 기준 폰트 크기 */
.bases {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
  margin-bottom: 1rem;
}

.base-row {
  display: grid;
  grid-template-columns: 1fr 90px auto;
  gap: 0.5rem;
  align-items: center;
  padding: 0.7rem 0.85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.base-row label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text);
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.hint-inline {
  font-size: 0.68rem;
  color: var(--text-sub);
  font-weight: 500;
}

.base-row input[type="number"] {
  width: 100%;
  padding: 0.45rem 0.55rem;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.92rem;
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  outline: none;
  text-align: right;
  min-width: 0;
}
.base-row input[type="number"]:focus {
  border-color: var(--primary);
}

.suffix {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-sub);
}

/* 단위 입력 */
.units {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
}

.unit-row {
  display: grid;
  grid-template-columns: 130px 1fr auto;
  gap: 0.55rem;
  align-items: center;
  padding: 0.65rem 0.85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.unit-label {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.unit-label > :first-child {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.unit-desc {
  font-size: 0.7rem;
  color: var(--text-sub);
  font-weight: 500;
}

.unit-row input[type="number"] {
  padding: 0.55rem 0.75rem;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 1rem;
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--bg);
  color: var(--text);
  outline: none;
  min-width: 0;
  width: 100%;
  text-align: right;
}
.unit-row input[type="number"]:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.12);
}

.copy-btn {
  padding: 0.4rem 0.8rem;
  font-size: 0.78rem;
  font-weight: 500;
  background: var(--surface);
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s;
}
.copy-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* 빠른 변환 표 */
.quick-table {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem 0.95rem;
}

.qt-title {
  margin: 0 0 0.55rem 0;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-sub);
}

.quick-table table {
  width: 100%;
  border-collapse: collapse;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.82rem;
}

.quick-table th,
.quick-table td {
  padding: 0.4rem 0.55rem;
  text-align: right;
  border-bottom: 1px solid var(--border);
}

.quick-table th {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-sub);
  text-transform: uppercase;
}

.quick-table tbody tr:last-child td {
  border-bottom: none;
}

.quick-table tbody tr:nth-child(4) td {
  background: rgba(102, 126, 234, 0.08);
  font-weight: 700;
  color: var(--primary);
}

@media (max-width: 600px) {
  .bases { grid-template-columns: 1fr; }
  .unit-row { grid-template-columns: 110px 1fr auto; }
  .quick-table { padding: 0.6rem 0.7rem; }
  .quick-table th, .quick-table td { padding: 0.3rem 0.4rem; font-size: 0.75rem; }
}

@media (max-width: 480px) {
  .unit-row { grid-template-columns: 90px 1fr auto; gap: 0.4rem; }
  .unit-label > :first-child { font-size: 0.92rem; }
  .unit-desc { font-size: 0.65rem; }
}