.calc-enhance-controls {
  margin-top: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.calc-enhance-controls .enhance-btn,
.calc-enhance-controls select {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.85);
  border-radius: 8px;
  padding: 0.32rem 0.65rem;
  font-size: 0.75rem;
}

.calc-enhance-controls .enhance-btn:hover {
  border-color: rgba(255, 255, 255, 0.3);
  color: #fff;
}

.calc-shortcuts-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  z-index: 10020;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.calc-shortcuts-overlay.open {
  display: flex;
}

.calc-shortcuts-card {
  width: min(680px, 96vw);
  background: rgba(15, 23, 42, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  padding: 1rem;
}

.calc-shortcuts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.8);
}

.calc-shortcuts-grid kbd {
  font-size: 0.76rem;
  background: rgba(255, 255, 255, 0.1);
  padding: 0.12rem 0.38rem;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.calc-feedback {
  margin-top: 0.65rem;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.72);
  min-height: 1rem;
}

.calc-feedback.error {
  color: #fca5a5;
}

.calc-feedback.success {
  color: #86efac;
}

.calc-inline-actions {
  margin-top: 0.55rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.calc-mini-btn {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.8);
  padding: 0.3rem 0.55rem;
  font-size: 0.74rem;
}

.calc-mini-btn:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
}

.calc-explain-box {
  margin-top: 0.55rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  padding: 0.55rem 0.65rem;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.78rem;
  line-height: 1.45;
}

.calc-explain-box h4 {
  margin: 0 0 0.35rem;
  font-size: 0.78rem;
  color: #fff;
}

.calc-advanced-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 0.5rem;
  margin-top: 0.7rem;
}

.calc-advanced-grid .graph-opt,
.calc-advanced-grid .fn-input {
  width: 100%;
}

.graph-opt {
  padding: 0.35rem 0.7rem;
  border-radius: 7px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.03);
  color: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  font-size: 0.75rem;
  transition: all 0.2s;
}
.graph-opt:hover {
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.7);
}
.graph-opt.on {
  background: rgba(55, 192, 255, 0.1);
  border-color: rgba(55, 192, 255, 0.2);
  color: #37c0ff;
}

.history-toolbar {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.4rem;
}

.history-toolbar input {
  flex: 1;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.2);
  color: #fff;
  border-radius: 8px;
  padding: 0.3rem 0.5rem;
  font-size: 0.75rem;
}

.calc-favorites {
  margin-top: 0.7rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 0.55rem;
}

.calc-favorites .fav-row {
  display: flex;
  justify-content: space-between;
  gap: 0.4rem;
  align-items: center;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.76);
  margin-bottom: 0.25rem;
}

.calc-favorites .fav-row button {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  border-radius: 6px;
  padding: 0.15rem 0.38rem;
  font-size: 0.68rem;
}

body.calc-high-contrast .glass-panel,
body.calc-high-contrast .result-card {
  border-color: rgba(255, 255, 255, 0.34) !important;
  background: rgba(0, 0, 0, 0.62) !important;
}

body.calc-high-contrast .calc-tab.active {
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.6) !important;
}

body.calc-font-small {
  font-size: 14px;
}

body.calc-font-medium {
  font-size: 16px;
}

body.calc-font-large {
  font-size: 18px;
}

.sr-live {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.power-panel {
  margin-top: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  padding: 0.8rem;
}

.power-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.6rem;
  margin-top: 0.55rem;
}

.power-grid label {
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.65);
  display: block;
}

.power-grid input,
.power-grid select,
.power-grid textarea {
  margin-top: 0.22rem;
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.2);
  color: #fff;
  padding: 0.32rem 0.5rem;
  font-size: 0.78rem;
}

.power-actions {
  margin-top: 0.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.power-result {
  margin-top: 0.6rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  padding: 0.55rem 0.65rem;
  color: rgba(255, 255, 255, 0.84);
  font-size: 0.79rem;
}

.power-result .hint {
  color: rgba(255, 255, 255, 0.56);
  font-size: 0.74rem;
}