/* BuildCalc Pro — Clean Light Theme */

.input-field {
  width: 100%;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid #e2e8f0;
  background: #ffffff;
  font-size: 14px;
  font-family: 'Inter', sans-serif;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  color: #1e293b;
}
.input-field:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59,130,246,.1);
}
.input-field::placeholder { color: #94a3b8; }

.select-field {
  padding: 10px 14px;
  border-radius: 0 10px 10px 0;
  border: 1px solid #e2e8f0;
  border-left: none;
  background: #f8fafc;
  font-size: 14px;
  font-family: 'Inter', sans-serif;
  color: #475569;
  cursor: pointer;
  outline: none;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 12px;
  background: #3b82f6;
  color: white;
  font-weight: 600;
  font-size: 14px;
  font-family: 'Inter', sans-serif;
  border: none;
  cursor: pointer;
  transition: background .15s;
}
.btn-primary:hover { background: #2563eb; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 12px;
  background: #ffffff;
  color: #475569;
  font-weight: 600;
  font-size: 14px;
  font-family: 'Inter', sans-serif;
  border: 1px solid #e2e8f0;
  cursor: pointer;
  transition: background .15s;
}
.btn-secondary:hover { background: #f8fafc; }

.btn-add {
  padding: 10px 16px;
  border-radius: 12px;
  background: transparent;
  color: #3b82f6;
  font-weight: 600;
  font-size: 13px;
  font-family: 'Inter', sans-serif;
  border: 2px dashed #cbd5e1;
  cursor: pointer;
  transition: background .15s;
  width: 100%;
}
.btn-add:hover { background: #f1f5f9; border-color: #3b82f6; }

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 24px;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }

@media print {
  header, footer, nav, .btn-primary, .btn-secondary, .btn-add { display: none !important; }
  .card { box-shadow: none; border: 1px solid #e2e8f0; }
  body { background: white; color: black; }
}

input[type="range"] {
  -webkit-appearance: none;
  height: 6px;
  border-radius: 3px;
  background: #e2e8f0;
  outline: none;
  width: 100%;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #3b82f6;
  cursor: pointer;
  border: 2px solid white;
  box-shadow: 0 1px 4px rgba(0,0,0,.15);
}