.calculator-page .calc-section {
  margin-bottom: 2rem;
}

.calculator-page .calc-card {
  margin-bottom: 1rem;
  padding: clamp(1rem, 3vw, 1.75rem);
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  background: #fafafa;
}

.calculator-page .calc-input {
  min-height: 44px;
  padding: 0.65rem 0.75rem;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  background: #fff;
  color: inherit;
  font: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.calculator-page .calc-input:focus {
  border-color: #3b82f6;
  outline: none;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.calculator-page .calc-select {
  width: 100%;
  min-height: 44px;
  padding: 0.65rem 2.5rem 0.65rem 0.75rem;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  appearance: none;
  background-color: #fff;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 20 20' fill='none'%3E%3Cpath d='m5 7.5 5 5 5-5' stroke='%23334155' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 1rem;
  color: inherit;
  cursor: pointer;
  font: inherit;
  transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s;
}

.calculator-page .calc-select:hover {
  border-color: #94a3b8;
}

.calculator-page .calc-select:focus {
  border-color: #3b82f6;
  outline: none;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.calculator-page .calc-select:disabled {
  cursor: not-allowed;
  opacity: 0.65;
}

.calculator-page .calc-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.625rem;
  margin-top: 0.25rem;
}

.calculator-page .btn-calc,
.calculator-page .btn-clear {
  min-height: 44px;
  border-radius: 6px;
  padding: 0.5rem 1.1rem;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
}

.calculator-page .btn-calc {
  border: 1px solid #1e3a8a;
  background: #1e3a8a;
  color: #fff;
}

.calculator-page .btn-calc:hover {
  border-color: #1d4ed8;
  background: #1d4ed8;
}

.calculator-page .btn-clear {
  border: 1px solid #cbd5e1;
  background: transparent;
  color: #64748b;
}

.calculator-page .btn-clear:hover {
  background: #f1f5f9;
  color: #334155;
}

.calculator-page .calc-error {
  min-height: 1rem;
  margin-top: 0.25rem;
  color: #dc2626;
  font-size: 0.8rem;
}

.dark .calculator-page .calc-card {
  border-color: #334155;
  background: #1e293b;
}

.dark .calculator-page .calc-input {
  border-color: #475569;
  background: #0f172a;
  color: #f1f5f9;
}

.dark .calculator-page .calc-select {
  border-color: #475569;
  background-color: #0f172a;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 20 20' fill='none'%3E%3Cpath d='m5 7.5 5 5 5-5' stroke='%23cbd5e1' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  color: #f1f5f9;
}

.dark .calculator-page .calc-select:hover {
  border-color: #64748b;
}

.dark .calculator-page .calc-select option {
  background: #0f172a;
  color: #f1f5f9;
}

.dark .calculator-page .btn-clear {
  border-color: #475569;
  color: #94a3b8;
}

.dark .calculator-page .btn-clear:hover {
  background: #1e293b;
  color: #e2e8f0;
}

.dark .calculator-page .calc-error {
  color: #fca5a5;
}