/* ============================================================
   NOVAUTILS — tools/unit-converter/unit-converter.css
   ============================================================ */

.uc-layout { display: flex; flex-direction: column; gap: 16px; }

/* ── Tabs ── */
.uc-tabs {
  display: flex; gap: 6px; flex-wrap: wrap;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 16px;
}
.uc-tab {
  padding: 8px 16px;
  background: var(--bg3); border: 1px solid var(--border);
  color: var(--text-dim); font-family: var(--font-head);
  font-size: 0.82rem; font-weight: 600;
  border-radius: var(--radius-sm); cursor: pointer;
  transition: all 0.2s; white-space: nowrap;
}
.uc-tab:hover { border-color: var(--border2); color: var(--text); }
.uc-tab.active {
  background: linear-gradient(135deg, var(--blue), var(--purple));
  color: #fff; border-color: transparent;
  box-shadow: 0 2px 10px rgba(79,140,255,0.25);
}

/* ── Card ── */
.uc-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px;
}

/* ── Converter ── */
.uc-converter {
  display: grid;
  grid-template-columns: 1fr 60px 1fr;
  gap: 0; align-items: end;
  margin-bottom: 20px;
}
.uc-side { display: flex; flex-direction: column; gap: 8px; }
.uc-label {
  font-size: 0.68rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-dim);
}
.uc-input {
  background: var(--bg3); border: 1px solid var(--border2);
  color: var(--text); font-family: var(--font-mono);
  font-size: 1.4rem; font-weight: 500;
  padding: 14px 16px; border-radius: var(--radius-sm); outline: none;
  transition: border-color 0.2s, box-shadow 0.2s; width: 100%;
}
.uc-input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-dim); }
.uc-select {
  background: var(--bg3); border: 1px solid var(--border2);
  color: var(--text); font-family: var(--font-head);
  font-size: 0.9rem; padding: 10px 12px;
  border-radius: var(--radius-sm); outline: none; cursor: pointer;
  width: 100%;
}

/* Result */
.uc-result-wrap { display: flex; align-items: center; gap: 8px; }
.uc-result {
  flex: 1;
  font-family: var(--font-mono); font-size: 1.4rem; font-weight: 500;
  color: var(--blue); padding: 14px 16px;
  background: var(--bg3); border: 1px solid var(--border2);
  border-radius: var(--radius-sm); min-height: 54px;
  display: flex; align-items: center; word-break: break-all;
}
.uc-copy-result {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-dim); cursor: pointer;
  transition: color 0.2s, border-color 0.2s; flex-shrink: 0;
}
.uc-copy-result:hover { color: var(--blue); border-color: rgba(79,140,255,0.4); }
.uc-copy-result.copied { color: var(--green); border-color: rgba(54,211,153,0.4); }

/* Swap button */
.uc-middle { display: flex; align-items: flex-end; justify-content: center; padding-bottom: 4px; }
.uc-swap-btn {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: 50%; color: var(--text-dim); cursor: pointer;
  transition: color 0.2s, border-color 0.2s, transform 0.3s;
}
.uc-swap-btn:hover { color: var(--blue); border-color: rgba(79,140,255,0.4); transform: rotate(180deg); }

/* Formula */
.uc-formula {
  font-family: var(--font-mono); font-size: 0.78rem;
  color: var(--text-dimmer); text-align: center;
  padding: 10px; background: var(--bg3);
  border-radius: var(--radius-sm);
}

/* ── All conversions grid ── */
.uc-all-label {
  font-size: 0.72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-dim); margin-bottom: 16px;
}
.uc-all-label span { color: var(--text); font-family: var(--font-mono); }
.uc-all-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
}
.uc-all-item {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 12px 14px;
  display: flex; flex-direction: column; gap: 4px;
  cursor: pointer; transition: border-color 0.2s, background 0.2s;
}
.uc-all-item:hover { border-color: var(--border2); background: var(--surface2); }
.uc-all-item.active { border-color: var(--blue); background: var(--blue-dim); }
.uc-all-unit { font-size: 0.72rem; font-weight: 700; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.06em; }
.uc-all-val  { font-family: var(--font-mono); font-size: 0.92rem; color: var(--text); font-weight: 500; }

/* ── Responsive ── */
@media (max-width: 680px) {
  .uc-converter { grid-template-columns: 1fr; }
  .uc-middle { padding: 8px 0; transform: rotate(90deg); }
  .uc-swap-btn:hover { transform: rotate(90deg); }
}
@media (max-width: 480px) {
  .uc-tabs { gap: 4px; }
  .uc-tab  { padding: 6px 10px; font-size: 0.75rem; }
}