/* ── unit converter ── */
.uc-layout { display: grid; grid-template-columns: 240px 1fr; gap: 1.2rem; align-items: start; }
@media (max-width: 760px) { .uc-layout { grid-template-columns: 1fr; } .uc-cats { max-height: 200px; } }
.uc-side { display: grid; gap: .6rem; position: sticky; top: 1rem; }
.uc-cats { display: grid; border: 1px solid var(--rule); background: #fff; max-height: 70vh; overflow-y: auto; }
.uc-cat { text-align: left; background: none; color: var(--ink); border: none; border-bottom: 1px solid var(--rule);
  padding: .42rem .6rem; font-size: .8rem; text-transform: none; letter-spacing: 0; cursor: pointer; }
.uc-cat:hover { background: var(--band); }
.uc-cat.on { background: var(--ink); color: var(--paper); }
.uc-chips { display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; margin-bottom: .8rem; }
.uc-chip-label { font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-soft); }
.uc-chip { background: var(--band); border: 1px solid var(--rule); color: var(--ink); font-size: .76rem;
  padding: .2rem .55rem; text-transform: none; letter-spacing: 0; }
.uc-chip:hover { border-color: var(--ink); background: var(--band); }
.uc-chip-x { background: none; border: none; color: var(--ink-soft); padding: 0 .25rem 0 0; font-size: .9rem; margin-left: -.3rem; }
.uc-chip-x:hover { color: var(--red); background: none; }
.uc-convert { display: grid; grid-template-columns: 120px 1fr auto 1fr; gap: .8rem; align-items: end; }
@media (max-width: 860px) { .uc-convert { grid-template-columns: 1fr 1fr; } }
.uc-mid { display: flex; gap: .3rem; padding-bottom: .1rem; }
.uc-mid button { padding: .45rem .6rem; font-size: 1rem; }
#uc-star { background: transparent; color: var(--ink); }
#uc-star:hover { background: var(--band); }
.uc-result-box { grid-column: 1 / -1; display: flex; align-items: baseline; gap: .8rem; flex-wrap: wrap;
  border: 2px solid var(--ink); background: #fff; padding: .7rem 1rem; margin-top: .3rem; }
.uc-result { font-size: 1.5rem; font-weight: 700; word-break: break-all; }
.uc-line { color: var(--ink-soft); font-size: .82rem; min-height: 1.2em; margin: .5rem 0 0; }
.uc-ftin { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; margin-top: .8rem;
  border-top: 1px dashed var(--rule); padding-top: .8rem; }
.uc-ftin input { max-width: 160px; }
.uc-err { color: var(--red); font-size: .78rem; }
.uc-format { display: flex; flex-wrap: wrap; gap: .8rem 1.4rem; align-items: center; font-size: .84rem; }
.uc-radio, .uc-inline { display: flex; flex-direction: row; align-items: center; gap: .4rem; }
.uc-inline select { width: auto; }
.uc-panel { border: 1px solid var(--rule); background: #fff; margin-top: 1.1rem; padding: 0; }
.uc-panel summary { cursor: pointer; padding: .6rem 1rem; font-size: .8rem; letter-spacing: .1em;
  text-transform: uppercase; user-select: none; }
.uc-panel summary:hover { background: var(--band); }
.uc-panel[open] summary { border-bottom: 1px solid var(--rule); }
.uc-panel > *:not(summary) { margin: .8rem 1rem; }
.uc-mini { display: grid; grid-template-columns: 140px 1fr; gap: .6rem .8rem; max-width: 560px; }
#uc-all tr.hl td { background: var(--band); font-weight: 700; }

/* ── head blank tool ── */
.hb-layout { display: grid; grid-template-columns: 1fr 300px; gap: 1.2rem; align-items: start; }
@media (max-width: 820px) { .hb-layout { grid-template-columns: 1fr; } }
.hb-fig { border: 1px solid var(--rule); background: #fff; padding: .8rem; color: var(--ink); }
.hb-band { gap: 1rem 2.4rem; }
.hb-compare th { white-space: nowrap; }
.hb-compare td:first-child { color: var(--ink-soft); }
.hb-subs { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; }
@media (max-width: 820px) { .hb-subs { grid-template-columns: 1fr; } }